CN101044697A - Handover method for mixed mobile communication system of asynchronous network and synchronous network - Google Patents

Handover method for mixed mobile communication system of asynchronous network and synchronous network Download PDF

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Publication number
CN101044697A
CN101044697A CNA2005800261091A CN200580026109A CN101044697A CN 101044697 A CN101044697 A CN 101044697A CN A2005800261091 A CNA2005800261091 A CN A2005800261091A CN 200580026109 A CN200580026109 A CN 200580026109A CN 101044697 A CN101044697 A CN 101044697A
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China
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mobile communication
asynchronous
communication terminal
modem unit
synchronous
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Chinese (zh)
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金永洛
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SK Telecom Co Ltd
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SK Telecom Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

A method for improving a success rate of handover in a mobile communication system in which an asynchronous network and a synchronous network are mixed is disclosed. The method comprises the steps of: an asynchronous system instructing an asynchronous modem of a mobile station to initiate a synchronous modem according to a handover request, the handover request that is generated from the mobile station when intensions of a forwarding and receiving signals between the mobile station and a node B of the asynchronous system are less than a predetermined intension; the asynchronous system determining a cell for the handover and instructing the mobile station to handover a synchronous system; the asynchronous modem requesting the synchronous modem to receiving a current communication according to a hendover request of the asynchronous system to the asynchronous modem; the the mobile station accessing the synchronous system; and the asynchronous releasing the communication with the mobile station.

Description

The changing method of the mixed mobile communication system of asynchronous network and synchronizing network
Technical field
The present invention relates to switching (handover) method of mobile communications network, more particularly, relate to a kind of like this method, this method is suitable for controlling the modulator-demodulator of the mobile communication terminal in the mobile communication system that wherein is mixed with asynchronous network and synchronizing network, thereby improves the success rate that switches to synchronizing network from asynchronous network.
Background technology
Asynchronous mobile communiation system by Wideband Code Division Multiple Access (WCDMA) (WCDMA) representative is the representational third generation (becoming a 3G hereinafter) communication system, and its support is used for the big capacity and the high data transmission rate of voice-and-data.Support that the asynchronous mobile communiation system of high-speed mobile is being outstanding aspect the transmission performance of quality of service and big data quantity.
Along with the commercialization of 3G mobile communication service, developed the research of the many tape terminals of multimode, described terminal is in asynchronous system and be supported in the synchro system of carrying out global roaming between the mobile communication system and can use.By the many tape terminals of multimode, in the asynchronous system zone, can use the service of each distinct methods, also be like this in the synchro system zone.
Though compare with synchronous mobile communication system, asynchronous mobile communiation system has many advantages, needs a large amount of original construction networks of one-tenth, thereby only around the big regional construction asynchronous mobile communiation system of business demand.As a result, synchronous mobile communication system is developed into the service area that surrounds asynchronous mobile communiation system.In the case, when the user when asynchronous mobile communiation system moves to synchronous mobile communication system, perhaps when the user when synchronous mobile communication system moves to asynchronous mobile communiation system, just must switch so that continuous business to be provided.
Fig. 1 shows the flow chart of the traditional changing method from the asynchronous network to the synchronizing network.This changing method mainly may further comprise the steps: in asynchronous network, determine that in response to what must switch mobile communication terminal reports to this asynchronous network with adjacent cell information, switches to synchronizing network (S10) with indication; The asynchronous network indication is switched (S20) to mobile communication terminal; Mobile communication terminal is transformed into synchronous mode (S30) from asynchronous mode; After mobile communication terminal had been finished the conversion of synchronous mode, mobile communication terminal inserted synchronizing network (S40); And release is to the access (S50) of asynchronous network.
More particularly, the mobile communication terminal that receives the business of asynchronous mobile communiation system is periodically measured neighbor cell (base station) information, and the radio network sub-system (RNS. Node B) of giving asynchronous network with this report information (S101).The RNS reference, to differentiate whether need any switching needs to switch if tell at the radio environment measured value of the mobile communication terminal of current position, and then RNS needs to switch (S102) to asynchronous switch report.RNS sends adjacent cell information simultaneously and switches required mobile communication terminal.
Asynchronous switch checks that to the mobile communication terminal and the adjacent cell information that send from RNS need switch to the synchronous mobile communication system zone if tell, then this switch request base station system (BTS/BSC) is switched (S103).Afterwards, base station system synchronous modem unit that the channel of all directions is all distributed to mobile communication terminal prepares to switch (S104).
When synchronous switch when sending response message from the handoff request of asynchronous switch, asynchronous switch switches (S105, S106) by RNS to the asynchronous modem unit indication of mobile communication terminal.Switch message and comprise the information relevant, especially the information of channel allocation with synchronous mobile communication system.
The asynchronous modem unit that receives the mobile communication terminal of handover command messages from RNS sends the handover command messages (S107) that comprises channel allocation information to this asynchronous adjusting demodulator unit, and this synchronous modem unit is used to insert the communication of synchronizing network and prepares to handle.In other words, the synchronous modem unit of mobile communication terminal starts (S108) by connecting and preparing to handle, obtain pilot channel and synchronizing channel (S109, S110) carrying out synchronously with synchronizing network, and from synchronizing network reception timing information and system information.As a result, the synchronous modem unit of mobile communication terminal experience idle condition (S111), and be switched to communications status (S112).
After the driving of having finished synchronous modem unit and being transformed into communications status, synchronous modem unit is to finishing that the report of the base station of synchronizing network is switched, and send reciprocal frame, make between mobile communication terminal and synchronizing network, can connect (S113).Then, execution pattern conversion (S114) comprises the switching of the vocoder (vocoder) between asynchronous modem unit and the synchronous modem unit.
Afterwards, finish if mobile communication terminal switches to the base station system report, then synchronous switch is finished to asynchronous switch report switching, discharges with request to connect (S115).Simultaneously, asynchronous switch request RNS discharges and being connected of mobile communication terminal, and RNS discharged with being connected of mobile communication terminal after, RNS reports to asynchronous switch (S116) with this release, thereby finishes switching.
In above-mentioned changing method, when mobile communication terminal was connected with asynchronous network, the synchronous modem unit of mobile communication terminal was in closed condition.Yet, thereby move to moment that border between asynchronous network and the synchronizing network switches synchronizing network when arriving when mobile communication terminal, synchronous modem should be switched to opening.In the case, should determine the driving time of the synchronous modem unit of mobile communication terminal by mobile communication terminal self, thereby this situation occur: owing to the state difference between mobile communication terminal and the system makes handoff failure.
More particularly, when many Tape movement of multimode communication terminal need switch when using the asynchronous mobile communiation system business, drive synchronous modem unit and set up with communicating by letter of synchronous mobile communication system and need about 10 seconds, thus should with just drive synchronous modem unit before communicating by letter of asynchronous mobile communiation system stops.
If also do not drive synchronous modem unit, then do not switch and make to call out to break away from and connect up to having finished the scope that breaks away from asynchronous mobile communiation system.If than the required synchronous modem unit that earlier drives, then two modulator-demodulators are opened simultaneously, thereby cause electric power to consume excessively.Therefore, it is very important to determine to be arranged in the timing of two modulator-demod opening and closing in many Tape movement of multimode communication terminal.
Summary of the invention
Open the present invention is to address the above problem, an object of the present invention is to provide a kind of changing method, adjust the pattern of mobile communication terminal in response to radio frequency network by mobile communication system, determine that many Tape movement of multimode communication terminal switches to the modulator-demodulator switching timing of synchronizing network from synchronizing network, thereby can improve success rate for switching.
Another object of the present invention provides a kind of changing method, wherein, driving enters the synchronous modem unit of all mobile communication terminals on the border between asynchronous network and the synchronizing network so that it is transformed into communications status, when comprising border cell in the activation sub-district of the mobile communication terminal that has driven described synchronous modem, switch being transformed into described synchronizing network, thereby can improve success rate for switching.
Another purpose of the present invention provides a kind of changing method, wherein, in the mobile communication system that is mixed with asynchronous network and synchronizing network, send asynchronous dummy pilot signal from the synchronising base station that is implemented in the boundary between asynchronous network and the synchronizing network, when mobile communication terminal enters described border, the synchronous modem unit of described mobile communication terminal is driven, and when all activated sub-district to the mobile communication terminal that is driven send and from the intensity of the signal of its reception greater than sending to the base station that sends dummy pilot signal and during from the intensity of the signal of its reception, described mobile communication terminal is switched to described synchronizing network, thereby has reduced the power consumption of described mobile communication terminal between transfer period.
A further object of the present invention provides a kind of changing method, by this method, synchronous modem to the mobile communication terminal that enters the border between asynchronous network and the synchronizing network in the time must switching drives, thereby has reduced the power consumption of described mobile communication terminal.
According to an aspect of the present invention, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem controller and synchronous modem is provided, this method comprises following processing: with the Node B of the current asynchronous mobile communiation system that is connected of mobile communication terminal between transmission/received signal intensity during less than designated value, comprise that adjacent cell information ground switches to described asynchronous mobile communiation system request, so that described asynchronous mobile communiation system indicates the described asynchronous modem unit of described mobile communication terminal to drive synchronous modem unit (first handles); In described asynchronous mobile communiation system, determine whether to switch and switching target small area, thereby switch (second handles) to described synchronous mobile communication system indication; In response to the request that the described asynchronous modem unit of the described mobile communication terminal of described asynchronous mobile communiation system request is switched, the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into communications status (the 3rd handles); Described mobile communication terminal is connected to described synchronous mobile communication system (the reason) everywhere; And described asynchronous mobile communiation system discharges be connected (the 5th processing) with described mobile communication terminal.
According to a further aspect in the invention, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem controller and synchronous modem is provided, this method comprises following processing: information from described mobile communication terminal to described asynchronous mobile communiation system that report the sub-district of current sub-district that connects of described mobile communication terminal and activation in response to, when comprising border cell in the sub-district of described activation, asynchronous mobile communiation system indicates the asynchronous modem unit of described mobile communication terminal to drive synchronous modem unit (first handles); Described asynchronous mobile communiation system determines whether to switch and switching target small area with reference to the information of the sub-district of the described activation of collecting from described mobile communication terminal, and indicates described synchronous mobile communication system to switch (second handles); In response to the request that the described asynchronous modem unit request of the described mobile communication terminal of described asynchronous mobile communiation system request is switched, the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into communications status (the 3rd handles); Described mobile communication terminal is connected to described synchronous mobile communication system (the reason) everywhere; And described asynchronous mobile communiation system discharges be connected (the 5th processing) with described mobile communication terminal.
According to another aspect of the invention, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem controller and synchronous modem is provided, in described mixed mobile communication network, described synchronous mobile communication system is furnished with the base station that sends dummy pilot signal at the boundary with described asynchronous mobile communiation system, described dummy pilot signal has and the identical frequency of the employed frequency of described asynchronous mobile communiation system, described method comprises following processing: information from described mobile communication terminal to described asynchronous mobile communiation system that report the sub-district of current sub-district that connects of described mobile communication terminal and activation in response to, when comprising border cell in the sub-district of activating, described asynchronous mobile communiation system indicates the described asynchronous modem unit of described mobile communication terminal to drive described synchronous modem unit (first handles); When the signal strength signal intensity of the sub-district that sends dummy pilot signal among the signal that between the sub-district of described mobile communication terminal that drives by described synchronous modem unit and activation, sends and receive, the place determines whether to switch and switching target small area at described asynchronous mobile communiation system, and the indication synchronous mobile communication system switches (second handles); In response to the request that the described asynchronous modem unit of the described mobile communication terminal of described asynchronous mobile communiation system request is switched, the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into communications status (the 3rd handles); Described mobile communication terminal is connected to described synchronous mobile communication system (the reason) everywhere; And described asynchronous mobile communiation system discharges be connected (the 5th processing) with described mobile communication terminal.
In accordance with a further aspect of the present invention, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem controller and synchronous modem is provided, and this method comprises following processing: whether described asynchronous mobile communiation system exists border cell (first handles) in described mobile communication terminal is reported in the neighbor cell of described mobile communication terminal; If in the described neighbor cell of described mobile communication terminal, comprise described border cell, then whether the described asynchronous modem unit of described mobile communication terminal is differentiated and is switched, and in response to the driving of described synchronous modem unit, described asynchronous mobile communiation system switches to described synchronous mobile communication system indication, and to described asynchronous mobile communiation system report synchronization gain information (second handles); In response to the request that the described asynchronous modem unit of the described mobile communication terminal of described asynchronous mobile communiation system request is switched, the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into communications status (the 3rd handles); Described mobile communication terminal is connected to described synchronous mobile communication system (the reason) everywhere; And described asynchronous mobile communiation system discharges be connected (the 5th processing) with described mobile communication terminal.
Description of drawings
According to the detailed description of carrying out below in conjunction with accompanying drawing, will more be expressly understood above-mentioned and other purposes, characteristic and other advantages of the present invention, in the accompanying drawings:
Fig. 1 is a flow chart of explaining the common changing method from the asynchronous network to the synchronizing network;
Fig. 2 is the pie graph according to mobile communication system of the present invention;
Fig. 3 is the structure chart according to mobile communication terminal of the present invention;
Fig. 4 and Fig. 5 are the flow charts of explaining according to the changing method of first embodiment of the invention;
Fig. 6 is the schematic diagram of explaining according to the switching principle of second embodiment of the invention;
Fig. 7 and Fig. 8 are the flow charts of explaining according to the changing method of second embodiment of the invention;
Fig. 9 is the schematic diagram of explaining according to the switching principle of third embodiment of the invention;
Figure 10 and Figure 11 are the flow charts of explaining according to the changing method of fourth embodiment of the invention; And
Figure 12 and Figure 13 are the flow charts of explaining according to the changing method of fourth embodiment of the invention.
Embodiment
Now with reference to accompanying drawing the preferred embodiments of the present invention are described.
Fig. 2 is the pie graph according to mobile communication system of the present invention.
Asynchronous mobile communiation system 20 comprises: radio network controller (RNC) 216 and a plurality of Node B 212,214, this radio network controller are used for Control Node B 212,214 to set up and the communicating by letter of mobile communication terminal 10; Asynchronous switch (MSC) 220, it is connected with RNC 216, is used to call out exchange, to provide professional to mobile communication terminal 10; Short Message Service Center (SMSC) 240, it is connected with No.7 common signal network 230 by MSC 220; Serving GPRS Support Node 270, its be connected between intelligent network controller (SCP) 250 and the Home Location Register (HLR) 260 and RNC 216 and general packet radio service (GPRS) network 280 between, be used to keep the location track of mobile communication terminal 10 and carry out access control and safety function; And GGSN (Gateway GPRS Support Node 290), it is connected with GPRS network 280 by SGSN 270, and is linked into Internet protocol (IP) network 40, thereby supports and the linking of external packet.
The control radio resource is called radio network sub-system (RNS) 210 with RNC 216 and the described a plurality of Node B 212,214 of supervision and Control Node B 212,214 by the spy.
Simultaneously, synchronous mobile communication system 30 comprises: base station controller (BSC) 316 and a plurality of base station 312,314, this base station controller are used to control base station (BTS) 312,314 and communicate by letter with the radio subregion of mobile communication terminal 10 to support to set up; Switch (synchronous MSCs) 320, it calls out exchange by being connected with one or more base station controller 316; Short Message Service Center (SMSC) 340, it is connected with No.7 common signal network 330 by switch 320; Group data service node (PDSN) 370, it is connected with intelligent network controller (SCP) 350, Home Location Register (HLR) 360 and base station controller, is used for providing Packet data service to the user; And data core network (DCN) 380, be used to support the connection between group data service node 370 and the IP network 40.
Base station controller 316 and described a plurality of base station of supervision and control base station 312,314 are called base station system (BS) 310 by the spy.
The switch that passes through 230,330 interconnection of No.7 common signal network 220,320 of asynchronous network mobile communication system 20 and synchronizing network mobile communication system 30 sends and receives the required information of switching of mobile communication terminal 10.
Can be implemented as HLR 260,360 storages of two stack Home Location Registers and control user profile, value-added service user mode etc., and in response to providing user profile from the request of switch 220,320.
Can form border between asynchronous network mobile communication system 20 and the synchronizing network mobile communication system 30 with switching the private base station system, this system is used to support the switching of mobile communication terminal.Above-mentioned base station system can not receive the new calling from asynchronous mobile communiation system, but only is used for switching.
When mobile communication terminal is linked into above-mentioned switching private base station, if this mobile communication terminal is closed, then switching private base station notifies this mobile communication terminal to arrive the state of boundary by system information block (SIB), if this portable terminal is under the communications status, then switches private base station and notify by the radio environment measuring control information.
In addition, can form border between asynchronous network mobile communication system 20 and the synchronizing network mobile communication system 30 with base station system, this base station system sends asynchronous dummy pilot signal, with the switching of supporting mobile communication terminal and the switching of pseudo-cell area.
In the present invention, if the boundary of mobile communication terminal between asynchronous mobile mobile communication system and synchronous mobile communication system, then it receives dummy pilot signal to set up radio link and to drive synchronous modem unit, and when sending to all activated sub-district and from the intensity of its signal that receives during greater than the base station that sends to this transmission dummy pilot signal with from the intensity of its signal that receives, asynchronous mobile communiation system 20 is determined to switch, and makes mobile communication terminal be switched to synchronous mobile communication system 30.
Fig. 3 is the structure chart according to mobile communication terminal of the present invention.
With reference to Fig. 3, many Tape movement of multimode communication terminal 10 according to the present invention comprises: module 110 is used for the synchronous mobile communication business; Module 120 is used for the asynchronous mobile communiation business; Public module 130; And antenna, be used for the professional and asynchronous mobile communiation Business Processing frequency band for synchronous mobile communication simultaneously.
Synchronization module 110 comprises: duplexer 111, and it is used for by separating each frequency it being handled as band pass filter; Synchronization of radio transceiver unit 112 is used for the ripple that sends and receive is separated to assigned frequency band; With synchronous modem unit 113, be used to handle radio subregion agreement with synchronous mobile communication system.
Asynchronous module 120 comprises: duplexer 121, and it is used for by separating each frequency it being handled as band pass filter; Asynchronous wireless electricity transceiver unit 122 is used for the ripple that sends and receive is separated to assigned frequency band; With asynchronous modem unit 123, be used to handle radio subregion agreement with asynchronous mobile communiation system.
Public module 130 moves as being used to control the CPU of synchronous modem unit 113 and asynchronous modem unit 123 and as multimedia, public module 130 is parts that the software that is used for following purposes is installed: user interface, value-added service, mobile management, access/disengaging control, resource control and protocol processes.Public module 130 comprises: memory 131; Liquid crystal diode (LCD) driver 132 is used for display message on display 135; Keyboard 133 is used to receive the signal by user's input; With coding decoder 134, be used for carrying out modulation and demodulation by voice signal microphone 137 inputs or that export by loud speaker 136.
According to one embodiment of present invention, when receiving sub-district, a border from asynchronous network when being arranged in the report of the neighbor cell under the communications status, whether many Tape movement of multimode communication terminal is transformed into holding state or idle condition voluntarily measuring radio environment, and differentiate and switch and foundation and synchronizing network synchronous.As having set up synchronous result, this many Tape movement of multimode communication terminal sends to asynchronous network with base station information (PN skew), thus the feasible handoff procedure that can carry out subsequently.
According to another embodiment of the present invention, many Tape movement of multimode communication terminal drives holding state in response to the control of asynchronous network, and measures radio environment in response to the request of asynchronous network.When report radio environment measured value, the report of many Tape movement of multimode communication terminal has obtained synchronously, and report base station information (PN skew), thus the feasible handoff procedure that can carry out subsequently.
The state of the synchronous modem of mobile communication terminal can be divided into closed condition, holding state, ready or idle condition and communication or busy condition.Ready state refers to such state: obtained with synchronizing network synchronously but only can receive Overhead Message.Holding state refers to such state: mobile communication terminal is switched to ready state, and is switched to the low-power mode of the transmission/reception that has stopped modulator-demodulator again.Usually, after the power supply of the synchronous modem unit of opening mobile communication terminal, be transformed into holding state and spend about 10 seconds, spend about 2 seconds and be transformed into communications status from holding state.
Because need drive mobile communication terminal in about 10 seconds, can increase power consumption so drive mobile communication terminal too early, if and drive lately excessively, call interruption then, thus the driving timing of fully determining mobile communication terminal in response to the radio environment between mobile communication terminal and the mobile communication system is very important.
Disclose the whole bag of tricks of fully determining this timing in the present invention, provided its details below.
(first embodiment)
A kind of method is disclosed in the first embodiment of the present invention.This method is such: mobile communication terminal is measured adjacent cell information, if mobile communication terminal has been reported such situation to asynchronous network, promptly, send to current contact the sub-district signal and be lower than predetermined value from the intensity of the signal of its reception, then mobile communication terminal indication asynchronous network drives the synchronous modem unit of mobile communication terminal to be transformed into holding state or ready state, afterwards, thus determine that switching target small area indication mobile communication switches to be transformed into communications status.With reference to Figure 4 and 5 its details is described.
Fig. 4 is the flow chart of explaining according to the changing method of first embodiment of the invention.Changing method according to first embodiment of the invention comprises following processing: report the cell information and the adjacent cell information (S31) of current connection in response to mobile communication terminal to asynchronous network, asynchronous network indication mobile communication terminal drives synchronous modem unit (S32); In response to telling the situation about must switch that taken place, switch (S10) to the synchronizing network indication from asynchronous network based on the adjacent cell information that receives by asynchronous network; Asynchronous network is switched (S20) to the mobile communication terminal indication; The synchronizing network of mobile communication terminal is switched to communications status (S33); After being transformed into synchronous mode, mobile communication terminal is linked into synchronizing network (S40); And release is to the access (S50) of asynchronous network.
The processing (S32) that the asynchronous network indication drives the synchronous modem unit of mobile communication terminal can be: the indication mobile communication terminal is transformed into the processing of holding state or the processing that the indication mobile communication terminal is transformed into ready state.
If S32 is the processing that the indication mobile communication terminal is transformed into holding state, then mobile communication terminal is carried out the processing that discharges low-power mode at the S33 place, to be transformed into ready state, is transformed into communications status then.Simultaneously, if S32 is the processing that the indication mobile communication terminal is transformed into ready state, then mobile communication terminal directly is transformed into communications status at the S33 place.
More particularly, the mobile communication terminal that receives the business of asynchronous mobile communiation system is periodically measured neighbor cell (base station) information, if send to the Node B of current connection and from the intensity of the signal of its reception intensity, then to the RNS of asynchronous network 210 report radio environment measured values (S200) less than designated value.
Afterwards, the asynchronous modem unit of RNS 210 request mobile communication terminals drives synchronous modem unit (S202).Then, asynchronous modem unit sends to synchronous modem unit (S204) to drive synchronous modem unit (S205) with driving command, and synchronous modem unit reports to asynchronous modem unit (S206) with this driving.As a result, can further carry out such processing: asynchronous modem unit has driven synchronous modem unit (S207) to RNS 210 reports.
Asynchronous modem unit 220 can be indicated to asynchronous modem unit: synchronous modem unit is transformed into holding state or ready state.If indication is transformed into holding state, then synchronous modem unit is connected and is prepared and handles to obtain pilot channel and synchronizing channel, is transformed into ready state and is switched to low-power mode again.Simultaneously, if indication is transformed into ready state, then synchronous modem unit is connected and is prepared and handles, and obtains pilot channel and synchronizing channel, and in response to the synchronous foundation of synchronizing network, obtain system information again.
Then, whether RNS 210 switches with reference to differentiating from the adjacent cell information of mobile communication terminal reception, if must switch, then RNS 210 must switch (S209) to asynchronous switch 220 reports.
220 pairs of mobile communication terminals from RNS 210 receptions of asynchronous switch, adjacent cell information, base station information etc. are checked, and think that the switching that must carry out the synchronous mobile communication system zone, asynchronous switch 220 determine switching target small areas and ask switching to synchronous switch 320.Synchronous switch 320 and then switch to the synchronous modem unit of mobile communication terminal to the BS of the channel that distributes all directions 310 requests, thus ready (S211) switched in prompting.
Preferably, when whether RNS 210 decision switches, with reference to from the adjacent cell information of mobile communication terminal report, when the neighbor cell of mobile communication terminal (promptly, the sub-district of activating) when all being the border cell of the boundary between asynchronous network and synchronizing network, request is switched.
If comprise the sub-district that is not border cell having set up in the sub-district of activation of radio link with mobile communication terminal, then can drive synchronous modem unit in early days, thereby improved power consumption, if but RNS 210 switches and proceeds subsequently processing, switching efficiency height to 220 requests of asynchronous switch.As a result, should determine to switch, perhaps when border cell surpasses specified ratio with respect to the ratio of the sub-district of activating, can determine to switch according to the characteristic (sub-district of activation all is a border cell) of radio environment.
Then, when synchronous switch 320 sent response message at the handoff request of asynchronous switch 220, asynchronous switch 220 switched (S212, S213) by RNS 210 to the asynchronous modem unit indication of mobile communication terminal.Handover instruction message contains channel allocation information, such as be transformed into the required system parameters of communications status etc. from ready state.
The asynchronous modem unit that receives the mobile communication terminal of handover command messages from RNS 210 is switched (S214) to synchronous modem unit indication, and thus, synchronous modem unit is switched to communications status (S215).If the instruction that provides at S202 is the holding state that will be transformed into synchronous modem unit, then the synchronous modem unit of mobile communication terminal is removed low-power mode, and be transformed into ready state, in this ready state, signal is sent to the base station of synchronizing network and from its received signal; If the instruction that provides at S202 is the ready state that will be transformed into synchronous modem unit, then the synchronous modem unit of mobile communication terminal directly is transformed into communications status.
Afterwards, synchronous modem unit is switched to the report of the base station 310 of synchronizing network and is finished, and sends reciprocal frame, thereby makes can connect (S216) between mobile communication terminal and synchronizing network.After connection between synchronous modem unit and synchronizing network was set up, adaptive multi-rate (AMR) is converted into Enhanced Variable Rate Coder (EVRC) so that the noiseless part minimum (S217) in handoff procedure.
Then, synchronous switch 320 switches to asynchronous switch 220 reports to be finished, and request discharges connection (S218) therebetween.Asynchronous switch 220 request RNS 210 releases are connected with mobile communication terminal.RNS 210 releases are connected with mobile communication terminal, and are connected (S219) to asynchronous switch 220 reports with the mobile communication terminal disconnection, thereby have finished switching.
In previous statement, be described at such changing method: mobile communication terminal is periodically measured the signal that sends to the unit of having set up radio link and from the intensity of the signal of its reception, in the intensity of the current transmission/received signal that receives professional sub-district during less than the intensity of predetermined value, control in response to asynchronous network, mobile communication terminal drives the synchronous modem unit of mobile communication terminal, and utilize asynchronous network to determine after the switching, in response to the switching command that is connected to synchronizing network, synchronous modem unit is transformed into communications status.
In the case, the synchronous modem unit of mobile communication terminal is switched to holding state or ready state in response to the request of asynchronous network, and is switched to communications status again in response to switching command.
In the present invention, the synchronous modem unit of mobile communication terminal can be according in asynchronous network determining of switching being transformed into holding state and being transformed into ready state from holding state from closed condition, and when in asynchronous network, determined whether to switch and switching target small area after, can be transformed into communications status according to switching command.About said method, be described with reference to Fig. 5.
Fig. 5 explains the flow chart of changing method according to another embodiment of the present invention.
With reference to Fig. 5, changing method may further comprise the steps according to another embodiment of the present invention: cell information from mobile communication terminal to asynchronous network and the adjacent cell information (S31) of reporting current connection in response to, asynchronous network should be switched to holding state to mobile communication terminal indication synchronous modem unit, and asynchronous network determines whether to switch and makes synchronous modem unit be transformed into ready state (S34); Asynchronous network indication synchronizing network switches (S10); The synchronous modem unit of mobile communication terminal is switched to communications status (S35); Finish be transformed into synchronous mode after, mobile communication terminal is connected to synchronizing network (S40); And be connected (S50) of release and asynchronous network.
More particularly, the mobile communication terminal that receives the business of asynchronous mobile communiation system is periodically measured adjacent cell information, and with the intensity of the transmission/received signal of the current Node B that is connected during greater than the intensity of predetermined value, to the RNS of asynchronous network 210 report radio environment measured values (S300).
The result, RNS 210 is holding state (S302) to the asynchronous modem unit request of mobile communication terminal with the synchronous modem unit driving, and asynchronous modem unit indication synchronous modem unit is transformed into holding state (S303), make synchronous modem unit be in (S304) under the holding state, and this holding state is reported to asynchronous modem unit (S305) by synchronous modem unit.Can carry out another step: asynchronous modem unit has been transformed into holding state to asynchronous switch 320 report synchronous modem unit.
Then, RNS 210 references are in the adjacent cell information of S300 from the asynchronous modem unit transmission of mobile communication terminal, to determine whether to switch (S308), to the asynchronous modem unit request synchronous modem unit is transformed into ready state (S309) then.The result, asynchronous modem unit indication synchronous modem unit is transformed into ready state (S310), thereby synchronous modem unit is transformed into ready state (S311) from holding state, by synchronous modem unit this ready state is reported to asynchronous modem unit (S312).Then, asynchronous modem unit has been transformed into ready state (S313) to RNS 210 report synchronous modem unit.
At this moment, be transformed into from closed condition under the order of holding state, synchronous modem unit is connected, prepares to handle, and after obtaining pilot channel and synchronizing channel, proceed to the conversion process of low-power mode, and discharge low-power mode to be transformed into ready state from holding state, come to synchronizing network transmission signal with from its received signal.
Preferably, RNS 210 when determining whether to switch, with reference to adjacent cell information from mobile communication terminal report, when the neighbor cell of mobile communication terminal (promptly, the sub-district of activating) when all being the border cell of the boundary between asynchronous network and synchronizing network, request is switched.When having set up sub-district with the activation of the radio link of mobile communication terminal and comprised the sub-district that is not border cell, and when RNS 210 when 220 requests of asynchronous switch are switched and proceed subsequently processing, can drive the synchronous modem unit of mobile communication terminal in early days, this has improved power consumption, but the switching efficiency height.In the case, consider that the characteristic (whether the sub-district of activation all is border cell) of radio environment is carried out determining of switching,, then switch if border cell surpasses predeterminated level with respect to the ratio of the sub-district of activating.
Then, RNS 210 needs to switch (S314) to 220 reports of asynchronous switch, and at this moment, RNS210 sends the information of switching required mobile communication terminal, adjacent cell information etc. simultaneously.220 pairs of information from the mobile communication terminal of RNS 210 receptions of asynchronous switch, adjacent cell information, base station information etc. are checked, to determine switching target small area and to switch (S315) to synchronous switch 320 requests.Synchronous switch 320 to base station 310 request switch, the synchronous modem unit of mobile communication terminal is all distributed to the channel of all directions in base station 310, makes and can prepare to switch (S316).
Then, when synchronous switch 320 sent response message at the handoff request of asynchronous switch 220, asynchronous switch 220 switched (S317, S318) by the asynchronous modem unit of RNS 210 indication mobile communication terminals.In addition, the asynchronous modem unit indication synchronous modem unit that receives the mobile communication terminal of handover command messages from RNS 210 is switched (S319), and thus, synchronous modem unit is transformed into communications status (S320).
Subsequently, synchronous modem unit is finished to the 310 report switchings of the base station of synchronizing network, and sends reciprocal frame so that can connect (S321) between mobile communication terminal and synchronizing network.After connection between synchronous modem unit and synchronizing network was set up, asynchronous many speed (AMR) are converted into Enhanced Variable Rate Coder (EVRC) so that the noiseless part minimum (S322) in handoff procedure.
After the synchronous modem unit and the foundation of the connection between the synchronizing network of mobile communication terminal, synchronous switch 320 switches to asynchronous switch 220 reports to be finished, discharge to connect (S323) with request, thereby asynchronous switch 220 request RNS 210 discharge and being connected of mobile communication terminal.Discharged and being connected and will connecting to disconnect and report to asynchronous switch 220 (S324) afterwards of mobile communication terminal at RNS 210, switching is finished.
As previous illustrated in first embodiment, mobile communication terminal is periodically measured to send to and has been set up with the signal of the sub-district of the radio link of mobile communication terminal with from the intensity of the signal of its reception, in the intensity of the current transmission/received signal that receives professional sub-district during less than the intensity of predetermined value, control in response to asynchronous network, the synchronous modem unit of mobile communication terminal is switched to closed condition, holding state, communications status, switching command in response to asynchronous network, the synchronous modem unit of mobile communication terminal is switched to communications status, thereby in the time must switching, it is ready state that synchronous modem unit is driven, and after having determined switching cell, it is transformed into communications status, thereby reduced power consumption.Simultaneously, drive synchronous modem unit at reasonable time as required, thereby prevent to call out failure when switching is unsuccessful.
(second embodiment)
In addition, in the present invention, such changing method is described: when mobile communication terminal enters switching cell, asynchronous network drives mobile communication terminal so that can determine whether mobile communication terminal is switched and switching target small area, make mobile communication terminal be transformed into communications status, thereby synchronizing network can be switched.Now, with reference to Fig. 6,7 and 8 changing methods of describing in detail according to second embodiment of the invention.
Fig. 6 is the schematic diagram of explaining according to switching principle of the present invention.
Thereby when being connected with RNS 210 in the zone of asynchronous mobile communiation system 20 and utilizing its professional mobile communication terminal to move the border that enters between asynchronous mobile communiation system 20 and the synchronous mobile communication system 30 (promptly to synchronous mobile communication system 30, handover cell area A) time, mobile communication terminal is connected to RNS 210, to receive professional and to set up and the 310-1 of switching private base station system (BS) of synchronous mobile communication system 30, the radio link of 310-3.At this moment, switch the sub-district that the private base station system covered and be called as border cell.
Mobile communication terminal is periodically measured the information of base station of current connection and the information relevant with the sub-district of the activation of having set up radio link, and give RNS 210 with this report information, RNS210 checks with mobile communication terminal to have set up in the sub-district of activation of radio link whether comprise border cell, drive synchronous modem unit by mobile communication terminal, be transformed into holding state or ready state with request.Afterwards, under mobile communication terminal is in driving condition, RNS 210 checks whether the sub-district of the activation of having set up radio link all is border cell, if the sub-district of these activation all is a border cell, then whether RNS 210 differentiates and switches, and asynchronous network is differentiated switching target small area and indicated mobile communication terminal to be transformed into communications status.
In the present invention, can: comprise border cell if mobile communication terminal has been set up the sub-district of the activation of radio link, then RNS 210 drives synchronous modem unit and asks mobile communication terminal to be transformed into holding state; If the sub-district of the activation of the mobile communication terminal under the holding state all is a border cell, whether decision switches so that mobile communication terminal can be transformed into ready state, in response to the decision of asynchronous network, make mobile communication terminal be transformed into communications status to switching target small area.
Explain above-mentioned changing method in detail with reference to Fig. 7 and 8.
In the following description, border cell refers to and switches the sub-district that private base station covered, and the base station refers to the base station system of the synchronizing network that mobile communication terminal will connect.
Fig. 7 is the flow chart of explaining according to the changing method of second embodiment of the invention.
With reference to Fig. 7, comprise following processing according to the changing method of second embodiment of the invention: mobile communication terminal is reported the cell information and the adjacent cell information (S31) of current connection to asynchronous network; If comprise border cell in the sub-district of activating, then asynchronous network checks that this adjacent cell information drives synchronous modem unit (S32) with the indication mobile communication terminal; Differentiate and whether to switch and switching target small area,, then indicate synchronizing network to switch (S10) if the sub-district of having set up with the activation of the radio link of the mobile communication terminal that is driven all is a border cell; Asynchronous network indication mobile communication terminal switches (S20); The synchronous modem unit of mobile communication terminal is switched to communications status (S33); After being transformed into synchronous mode, mobile communication terminal is connected to synchronizing network (S40), and be connected (S50) of release and asynchronous network.
The processing (S32) that the asynchronous network indication drives the synchronous modem unit of mobile communication terminal can be: the indication mobile communication terminal is transformed into the processing of holding state or the processing that the indication mobile communication terminal is transformed into ready state.If the processing of S32 is the processing that the indication mobile communication terminal is transformed into holding state, then mobile communication terminal is carried out the step that discharges low-power mode at the S33 place, to be transformed into ready state, carries out the step that is transformed into communications status then.
Simultaneously, if the processing of S32 is the processing that the indication mobile communication terminal is transformed into ready state, then mobile communication terminal directly is transformed into communications status at the S33 place.
More particularly, the mobile communication terminal that receives the business of asynchronous mobile communiation system is periodically measured the cell information and neighbor cell (base station) information of current connection, and to the RNS of asynchronous network 210 report these information (S200).
Afterwards, whether RNS 210 inspections comprise border cell (S201) with the sub-district that mobile communication terminal has been set up the activation of radio link, if comprise border cell, then RNS 210 requests drive synchronous modem unit (S202).Then, driving command is sent to synchronous modem unit (S204) to asynchronous modem unit so that synchronous modem unit drives (S205), and synchronous modem unit reports to asynchronous modem unit (S206) with this driving.As a result, can also add a step: asynchronous modem unit has driven synchronous modem unit to RNS 210 reports.
At step S202, asynchronous switch 220 can indicate synchronous modem unit should be transformed into holding state or ready state to asynchronous modem unit.If instruction is made at being transformed into holding state, then synchronous modem unit is connected and is prepared and handles to obtain pilot channel and synchronizing channel, is transformed into ready state and low-power mode then.Simultaneously, if instruction is made at being transformed into ready state, then synchronous modem unit is connected and is prepared and handles with acquisition pilot channel and synchronizing channel, and obtains system information synchronously with synchronizing network.
Then, RNS 210 checks with reference to the adjacent cell information that receives from mobile communication terminal whether the sub-district of the activation of the mobile communication terminal that drives at S205 all is border cell (S208).If comprise border cell, then RNS 210 decisions are switched, and need to switch (S209) to asynchronous modem unit 220 reports.
Preferably, when whether RNS 210 decision switched, RNS 210 was with reference to the adjacent cell information from the mobile communication terminal report, thereby all was that request is switched under the situation of border cell in the sub-district of the activation of mobile communication terminal.
If to exist in the sub-district of activation of radio link be not the unit of border cell having set up with mobile communication terminal, and when RNS 210 when 220 requests of asynchronous switch are switched and proceed subsequently processing, drive the synchronous modem unit of mobile communication terminal in early days, increased power consumption, but the switching efficiency height.
Therefore, should consider the characteristic of radio environment and make the decision of switching, thereby switch when all to be border cell or border cell with respect to the ratio of the sub-district of activating be equal to or greater than estimated rate when the sub-district of activating.
Simultaneously, it is similar to the processing of first embodiment of Fig. 4 that decision is finished switching processing after switching, thereby for for the purpose of the knowing of this specification, will omit further describing it at this.
In the second embodiment of the present invention, when mobile communication terminal enters border between asynchronous network and the synchronizing network, drive synchronous modem unit, reexamine the radio environment of mobile communication terminal.Then, make mobile communication terminal be transformed into communications status, thereby make the power consumption that to save mobile communication terminal.
In the present invention, can: in response to the driving request of asynchronous network, the synchronous modem unit of mobile communication terminal is switched to holding state in view of the above, and in response to the decision of on the asynchronous network part, switching, synchronous modem unit is transformed into ready state from holding state, then, on asynchronous network part, determined switching target small area after, in response to switching command, synchronous modem unit is switched to communications status.Be described in greater detail with reference to Fig. 8.
Fig. 8 is the flow chart of explaining according to the changing method of second embodiment of the invention.
This changing method may further comprise the steps: mobile communication terminal is reported the cell information and the adjacent cell information (S31) of current connection to asynchronous network; If comprise border cell in the sub-district of the activation of mobile communication terminal, then asynchronous network indication mobile communication terminal is transformed into holding state with synchronous modem unit, if comprise border cell having set up in the sub-district of activation of radio link with the mobile communication terminal of holding state, then the asynchronous network decision is switched and the indication synchronous modem unit is transformed into ready state (S34); Asynchronous network indication synchronizing network switches (S10); Asynchronous network indication mobile communication is switched (S20); The synchronous modem unit of mobile communication terminal is transformed into communications status (S35); Finished mobile communication terminal is transformed into synchronous mode after, mobile communication terminal is connected to synchronizing network (S40); And be connected (S50) of release and asynchronous network.
More particularly, receive mobile communication terminal periodic measurement neighbor cell (base station) information of the business of asynchronous mobile communiation system, and to the RNS of asynchronous network 210 report these information (S200).Afterwards, whether RNS 210 inspections include border cell (S301) with the sub-district that mobile communication terminal has been set up the activation of radio link, if comprise border cell, then RNS 210 is holding state (S302) to the asynchronous modem unit request of mobile communication terminal with the synchronous modem unit driving.Then, asynchronous modem unit indication synchronous modem unit is transformed into holding state (S303) so that synchronous modem unit can be transformed into holding state (S304), and synchronous modem unit is given asynchronous modem unit (S305) with this handover report.As a result, can further carry out a step: asynchronous modem unit has driven synchronous modem unit to asynchronous switch 320 reports and has been holding state.
Then, whether RNS 210 inspections all are border cell (S307) with the sub-district that the mobile communication terminal that has been transformed into holding state has been set up the activation of radio link, if what comprised all is border cell, then to whether switching make decision (S308), RNS 210 is transformed into ready state (S309) to the asynchronous modem unit indication with synchronous modem unit.Afterwards, asynchronous modem unit indication synchronous modem unit is transformed into ready state (S310), thereby synchronous modem unit is transformed into ready state (S311) from holding state.Synchronous modem unit is given asynchronous modem unit (S312) with this handover report.Then, asynchronous modem unit has been transformed into ready state (S313) to RNS 210 report synchronous modem unit.
Preferably, if the sub-district of the activation of mobile communication terminal all is a border cell, then the RNS210 decision is switched.
If there is such situation, promptly, the sub-district of having set up some activation of radio link with mobile communication terminal is not a border cell, and when RNS 210 switches when proceeding processing subsequently to 220 requests of asynchronous switch, drive the synchronous modem unit of mobile communication terminal in early days, increased power consumption, but the performance of switching is outstanding.Therefore, should consider the characteristic of radio environment and make the decision of switching, thereby switch when can all to be border cell or border cell in the sub-district of activating with respect to the ratio of the sub-district of activating be equal to or greater than estimated rate.
Simultaneously, it is similar to the processing of first embodiment of Fig. 5 to finish switching processing after decision is switched, thereby will omit further describing it.
As described in the second embodiment of the present invention, comprise border cell if set up the sub-district of the activation of radio link with mobile communication terminal, then the synchronous modem unit of asynchronous modem unit indication mobile communication terminal is transformed into holding state, if being transformed into the sub-district of activation of the mobile communication terminal of holding state all is border cell, then the switching of mobile communication terminal is carried out in decision, thereby mobile communication terminal is switched to ready state.Because mobile communication terminal is switched to communications status when having selected switching target small area, so when needs switch synchronous modem unit being driven is ready state, after decision is switched, mobile communication terminal is switched to communications status, thereby makes the power consumption that can reduce mobile communication terminal.Simultaneously, can drive synchronous modem unit at the appropriate time of necessity, thereby making it possible to prevent calls out owing to handoff failure is cut off.
(the 3rd embodiment)
A kind of changing method of the mixed mobile communication system that is used for asynchronous network and synchronizing network according to third embodiment of the invention has been proposed, wherein, when mobile communication terminal enters border between asynchronous network and the synchronizing network, mobile communication terminal is driven, when the signal that sends to all activated sub-district and receive during greater than the intensity of the signal of the sub-district that sends asynchronous dummy pilot signal from all activated sub-district, determine to carry out the switching of mobile communication terminal, when having determined switching target small area, mobile communication terminal is switched to communications status, thereby switch to synchronizing network, describe its principle with reference to Fig. 9.
Fig. 9 is the schematic diagram of explanation according to the principle of the switching of third embodiment of the invention.
When being connected with the RNS 210 of asynchronous mobile communiation system 20 and utilizing its professional mobile communication terminal when thereby synchronous mobile communication system 30 moves border A between the zone of the zone that enters asynchronous mobile communiation system 20 and synchronous mobile communication system 30, mobile communication terminal 10 is connected to RNS 210, to receive professional from it and to set up simultaneously and base station system (BS) 310-1 of synchronous mobile communication system 30, the radio link of 310-2,310-3.
In the base station system of synchronous mobile communication system 30 at least one (310-2) is the base station system that is used to send asynchronous dummy pilot signal, and described dummy pilot signal has the frequency identical with the frequency of asynchronous mobile communiation system, thereby the mobile communication terminal 10 that asynchronous modem unit is activated can easily be searched for this signal that sends from the base station of synchronous mobile communication system 30.
In the present embodiment, if mobile communication terminal 10 is positioned at A place, border, the adjacent cell information of then periodically being measured by mobile communication terminal 10 and reporting comprises that the sub-district that indication activates is the information of border cell, this information is discerned by RNS 210, and makes the synchronous modem unit of mobile communication terminal be driven to holding state or ready state.
In addition, if under the situation of the synchronous modem unit that has driven mobile communication terminal, the signal strength signal intensity that sends the base station system 310-2 of dummy pilot signal among the signal sub-district transmission that activates and that receive from the sub-district of activating is maximum, and then RNS 210 determines to switch.Afterwards, synchronous mobile communication system 20 is determined switching target small areas, and makes mobile communication terminal be transformed into communications status and switch to synchronous mobile communication system 30.
If in the sub-district of the activation of having set up radio link, comprise border cell, then RNS210 drives synchronous modem unit and makes it be transformed into holding state by mobile communication terminal 10, RNS 210 determines whether to switch, if with the intensity of sub-district in the base station system 310-2 that sends dummy pilot signal among the intensity of the unit of the sub-district switching signal of the activation of mobile communication terminal under the holding state be maximum, then make mobile communication terminal be transformed into ready state.After in asynchronous network, having determined switching target small area, mobile communication terminal can be transformed into communications status.
Now, with reference to Figure 10 and 11 changing methods of describing in detail according to third embodiment of the invention.
Figure 10 is the flow chart of having described according to the changing method of third embodiment of the invention.
Changing method according to third embodiment of the invention comprises following processing: mobile communication terminal is reported the cell information and the adjacent cell information (S31) of current connection to asynchronous network; When asynchronous network was checked out this adjacent cell information and comprise border cell in neighbor cell, the indication mobile communication terminal drove synchronous modem unit (S32); Checking the size of signal of having set up the unit of radio link with driven mobile communication terminal, be maximum if send the cell size of the sub-district of dummy pilot signal, then indicates whether to switch (S33); Determine switching target small area, and the indication synchronizing network switches (S10); Asynchronous network indication mobile communication terminal switches (S20); The synchronous modem unit of mobile communication terminal is switched to communications status (S34); After the converting of synchronous mode, mobile communication terminal is connected to synchronizing network (S40); And be connected (S50) of release and asynchronous network.
With the same among the last embodiment of the present invention, in the third embodiment of the present invention, the processing (S32) of the asynchronous network of the synchronous modem unit of indication driving mobile communication terminal can be: the indication mobile communication terminal is transformed into the processing of ready state or the processing that the indication mobile communication terminal is transformed into ready state.In S32, mobile communication terminal is carried out following steps: be transformed into ready state by discharging low-power mode; And be transformed into communications status.Simultaneously, if S32 is the processing that the indication mobile communication terminal is transformed into ready state, then mobile communication terminal directly is transformed into communications status at S34.
More particularly, the mobile communication terminal that receives the business of asynchronous mobile communiation system is periodically measured the cell information and neighbor cell (base station) information of current connection, and this report information is given the RNS 210 (S200) of asynchronous network.Subsequently, whether RNS 210 exists border cell (S201) among checking the sub-district of having set up with the activation of the radio link of mobile communication terminal, if there is border cell, then RNS 210 request asynchronous modem unit drive synchronous modem unit (S202), thus, asynchronous modem unit sends driving command (S203) to drive synchronous modem unit (S204) to synchronous modem unit, and synchronous modem unit is given asynchronous modem unit (S205) with this report information.
Subsequently, can also further carry out a step: asynchronous modem unit comprises that adjacent cell information ground is driven to RNS 210 report synchronous modem unit, (S206).
At step S202, asynchronous switch 220 can be transformed into holding state or ready state with synchronous modem unit to the asynchronous modem unit indication.If the instruction that provides is to be transformed into holding state, then synchronous modem unit is carried out to connect and prepare and is handled to obtain pilot channel and synchronizing channel, is transformed into the processing that ready state is transformed into low-power mode then.Simultaneously, if the instruction that provides is to be transformed into ready state, then synchronous modem unit is carried out to connect and prepare and is handled with acquisition pilot channel and synchronizing channel, and carries out synchronously to obtain system information with synchronizing network.
Then, RNS 210 is with reference to the adjacent cell information that receives from mobile communication terminal, if to the sub-district of the activation of the mobile communication terminal that has driven at S204 send signal and from the intensity of the sub-district of its received signal greater than to its transmission and from its signal strength signal intensity (S207) that receives the sub-district of dummy pilot signal, then determine to switch (S208) and must switch (S209) to asynchronous switch 220 reports.
Simultaneously, if utilize the dummy pilot signal of the 3rd embodiment to determine to switch, then all the other handle with the last embodiment of the present invention be used to that to finish switching processing identical.
In the present invention, can be in response to the driving request of asynchronous network, the synchronous modem unit that enters the mobile communication terminal on border is transformed into holding state from closed condition, when among the signal magnitude of the sub-district of the activation of mobile communication terminal when the intensity of the signal of the unit output that sends dummy pilot signal be maximum, thereby determine to switch described synchronous modem unit is transformed into ready state from holding state, determine switching target small area by asynchronous network, thereby indication is switched and is made mobile communication terminal be transformed into communications status, explains its details with reference to Figure 11.
Figure 11 is the flow chart of explaining according to the changing method of third embodiment of the invention.This method comprises following processing: mobile communication terminal is reported the cell information and the adjacent cell information (S31) of current connection to asynchronous network; When comprising border cell in the sub-district in the activation of mobile communication terminal, asynchronous network indication mobile communication terminal is transformed into holding state with synchronous modem unit, when with holding state under the mobile communication terminal intensity of having set up the sub-district that sends dummy pilot signal among the size of sub-district of activation of radio link when maximum, asynchronous network is determined to switch, and the indication synchronous modem unit switches to ready state (S35); Asynchronous network indication synchronizing network switches (S10); Asynchronous network is switched (S20) to the mobile communication terminal indication; The synchronous modem unit of mobile communication terminal is switched to communications status (S36); Finish after the switching of synchronous mode, mobile communication terminal is connected to synchronizing network (S40); And be connected (S50) of release and asynchronous network.
More particularly, the mobile communication terminal that receives the business of asynchronous mobile communiation system is periodically measured neighbor cell (base station) information, and gives RNS 210 (S300) with this report information.RNS210 checks in the sub-district set up with the activation of the radio link of mobile communication terminal whether comprise border cell (S301), if determined to comprise border cell, then the asynchronous modem unit of RNS 210 request mobile communication terminals drives synchronous modem unit and is holding state (S302).Afterwards, asynchronous modem unit indication synchronous modem unit is transformed into holding state (S303) thereby makes synchronous modem unit be transformed into holding state (S304), and synchronous modem unit is given asynchronous modem unit (S305) with this handover report.Subsequently, can further carry out a step: the report synchronous modem unit has been transformed into holding state.
Then, when RNS 210 checks (S306) when whether being maximum from the size of signal of sub-district of having set up the activation of radio link with the mobile communication terminal that is transformed into holding state with the signal magnitude of checking the unit that sends dummy pilot signal once more, determine whether to switch (S308), RNS 210 request asynchronous modem unit are transformed into ready state (S309) with synchronous modem unit.Afterwards, the asynchronous modem unit indication is transformed into ready state (S310) with synchronous modem unit, thereby synchronous modem unit is switched to ready state (S311), and this ready state is reported to asynchronous modem unit (S312).Then, asynchronous modem unit has been transformed into ready unit (S313) to RNS 210 report synchronous modem unit.
Similar to the processing (S314 to S324) of first embodiment of Fig. 5 in the third embodiment of the invention to the completed processing of RNS 210 reports must switch and switch, thus further describing omitted at this to it.
As described in previously, if in the sub-district of having set up with the activation of the radio link of mobile communication terminal, comprise border cell, then the synchronous modem unit of asynchronous network indication mobile communication terminal is transformed into holding state, if the intensity of unit that sends dummy pilot signal is greater than sending signal to the mobile communication terminal that is transformed into holding state and from the size of the sub-district of the activation of its received signal, then determine to carry out the switching of mobile communication terminal, and make mobile communication terminal be transformed into ready state.After having selected switching target small area, mobile communication terminal is transformed into communications status, at the some place that must switch synchronous modem unit is driven for ready state, in case determined switching target small area, just mobile communication terminal is transformed into communications status, thereby has reduced power consumption.
(the 4th embodiment)
In the fourth embodiment of the present invention, if mobile communication terminal is positioned at the boundary of asynchronous network and synchronizing network, then asynchronous network reports to mobile communication terminal with it, and mobile communication terminal drives voluntarily determining whether and switches then.Give asynchronous network to switch the synchronization gain report information of synchronizing network.
In addition, in the present embodiment, if asynchronous network request mobile communication terminal is measured and the report radio environment, then mobile communication terminal drives voluntarily and is transformed into holding state, determines whether to switch.When switching and during acquisition and synchronizing network synchronous, mobile communication terminal is transformed into ready state, and synchronization gain information is reported to asynchronous network with the radio environment measurement result, makes it possible to switch.
Explain above-mentioned changing method in detail with reference to Figure 12 and 13.
Figure 12 is the flow chart of explaining according to the changing method of fourth embodiment of the invention.Changing method according to fourth embodiment of the invention comprises following processing: according to receiving from the mobile communication terminal of the business of asynchronous mobile communiation system the cell information and the adjacent cell information of current connection reported to asynchronous network, whether asynchronous network comprises border cell (S31) in mobile communication terminal report neighbor cell; If comprise border cell in the neighbor cell, then the asynchronous modem unit of mobile communication terminal determines whether to switch, and switches if desired, and then described asynchronous modem unit drives synchronous modem unit and obtains (S32) synchronously; After mobile communication terminal sent to asynchronous network with the synchronization gain information of synchronous modem unit, asynchronous network indication synchronizing network switched (S10); Asynchronous network indication mobile communication terminal switches (S20); The synchronous modem unit of mobile communication terminal is transformed into communications status (S33); Finish conversion after the conversion of synchronous mode, mobile communication terminal is connected to synchronizing network (S40); And be connected (S50) of release and asynchronous network;
The processing of the asynchronous modem unit driving synchronous modem unit of mobile communication terminal has defined synchronous modem unit and has been transformed into the processing that holding state is transformed into ready state then.The synchronization gain information definition of synchronous modem unit the PN offset information of synchronous mobile communication system base station.
More particularly, the mobile communication terminal that receives the business of asynchronous mobile communiation system is periodically measured the cell information and neighbor cell (base station) information of current connection, and this report information is given the RNS 210 (S200) of asynchronous network.Then, RNS 210 checks in the neighbor cell of having set up with the radio link of mobile communication terminal whether have border cell, and whether the existence of border cell is reported to the asynchronous modem unit (S210) of mobile communication terminal.
Comprise border cell if tell in the neighbor cell of mobile communication terminal, then asynchronous modem unit is with reference to sending to current connection sub-district and from the intensity of the signal of its reception.If this signal strength signal intensity less than threshold value, then determines to switch (S203), and request drives synchronous modem unit (S204).
As a result, synchronous modem unit is transformed into ready state (S205) from holding state.The processing that the conversion of synchronous modem unit from the closed condition to the holding state defined connection and prepared to handle and obtain pilot channel and synchronizing channel and be transformed into low-power mode, the conversion from the holding state to the ready state have defined the release low-power mode and have restarted synchronizing network and signal transmission and reception.
When driving synchronous modem unit according to above-mentioned processing (S205), synchronous modem unit reports to asynchronous modem unit (S206) with its driving.At this moment, also report is carried out synchronous information with synchronizing network,, obtains the PN offset information of synchronous base station that is.Then, asynchronous modem unit is reported together to RNS 210: synchronous modem unit drives, synchronization gain information (base station PN skew) (S207).Processing subsequently is similar to the processing of first embodiment of the invention, thereby omits the description to it.
In the fourth embodiment of the present invention, if asynchronous network request mobile communication terminal is measured and the report radio environment, then mobile communication terminal is measured radio environment, and differentiate according to the measurement result of radio environment and whether to switch, drive synchronous modem unit and obtain with synchronizing network synchronously.
In response to asynchronous network, synchronization gain information is included in report in the radio environment measurement result, can carry out providing its detailed explanation with reference to Figure 13 to the switching that obtains synchronous related synchronization base station.
Figure 13 is the flow chart of explaining according to the changing method of fourth embodiment of the invention.
In the 4th embodiment, can omit following processing: asynchronous network request mobile communication terminal drives synchronous modem unit (S34) and mobile communication terminal is transformed into holding state (S35), because these processing are not main processing.
Changing method according to fourth embodiment of the invention comprises following processing: in response to mobile communication terminal the cell information and the adjacent cell information of current connection reported to asynchronous network, if comprise border cell in neighbor cell, then the asynchronous network indication drives the synchronous modem unit (S34) of mobile communication terminal; The synchronous modem unit of mobile communication terminal is transformed into holding state (S35); In response to asynchronous network request mobile communication terminal measurement environment and report the request of measurement result, mobile communication terminal is measured radio environment and is switched determining whether, if necessary, then is transformed into ready state, obtains synchronous (S36) with synchronizing network; Asynchronous modem unit in response to mobile communication terminal is reported radio environment measurement result and synchronization gain information to asynchronous network, and asynchronous network indication synchronizing network switches (S10); Asynchronous network indication mobile communication terminal switches (S20); The synchronous modem unit of mobile communication terminal is transformed into communications status (S37); Be transformed into after synchronous mode finishes, mobile communication terminal is connected to synchronizing network (S40); And be connected (S50) of release and asynchronous network.
More particularly, the mobile communication terminal that receives the business of asynchronous mobile communiation system is periodically measured neighbor cell (base station) information and this report information is given the RNS 210 (S300) of asynchronous network.Then, RNS 210 checks in the neighbor cell of having set up with the radio link of mobile communication terminal whether comprise whether border cell or neighbor cell all are border cells, if comprise border cell or neighbor cell in neighbor cell all is border cell, and then the asynchronous modem unit of RNS 210 request mobile communication terminals drives synchronous modem unit and is holding state (S302).
The result, asynchronous modem unit indication synchronous modem unit is transformed into holding state (S303), thus, synchronous modem unit is transformed into holding state (S304), and synchronous modem unit is given asynchronous modem unit (S305) with this handover report.Can add a processing: the transformation result of synchronous modem unit is reported to asynchronous switch 320 by asynchronous modem unit.
Then, RNS 210 measures the asynchronous modem unit (S306) that control messages sends to mobile communication terminal with radio environment.This Radio Measurement control messages comprises the condition of searching for synchronizing network, that is, and and the signal magnitude of the conditioned disjunction asynchronous network of the search synchronizing network of indication under the situation that special event has taken place.Simultaneously, this Radio Measurement control messages comprises the scope, measuring period, method for reporting of the target that will be measured by mobile communication terminal, measured value etc., and measurement target is classified by measuring ID.
Receive the asynchronous modem unit of measuring control messages from the radio environment of RNS 210 and measure the signal magnitude (S307) of current connected node B, if this signal magnitude is less than threshold value, then described asynchronous modem unit is determined to switch (S308), and the request synchronous modem unit is transformed into ready state (S310).Then, synchronous modem unit obtains pilot channel and synchronizing channel from synchronizing network, thereby is transformed into ready state (S311), and sends synchronization gain information (that is base station PN skew) (S312) to asynchronous modem unit.Asynchronous modem unit will be included in radio environment from the synchronization gain information that synchronous modem unit is accepted and measure the control messages, send to RNS 210 (S313).Preferably, adding one handles: under the situation of omitting S34 and S34, before asynchronous modem unit is carried out measurement to radio environment, asynchronous modem unit request synchronous modem unit is transformed into holding state (S307), thereby mobile communication terminal is switched to holding state.
Can be obvious from the description of front, in response to asynchronous network radio environment to be measured control messages and send to mobile communication terminal, asynchronous modem unit determines whether to switch with reference to the radio environment measurement result.If must switch, then acquisition and synchronizing network is synchronous, and in response to mobile communication terminal the radio environment measurement result is reported to asynchronous network with synchronization gain information, and mobile communication terminal is switched to synchronizing network.In the case, determine and must switch by mobile communication terminal, obtain with synchronizing network synchronously, thereby can drive synchronous modem unit on suitable opportunity, and can reduce power consumption.Simultaneously, by driving synchronous modem unit on suitable opportunity when needed, can prevent to be cut off owing to handoff failure makes to call out.
Though illustrate and described the present invention with reference to specific embodiment of the present invention, but it should be appreciated by those skilled in the art, under the situation that does not break away from the spirit and scope of the present invention that are defined by the following claims, can carry out various changes and modification to the present invention in form and details.Specification of the present invention is intended to illustration, does not limit the scope of claims.

Claims (34)

1, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem unit and synchronous modem unit, this method comprises following processing:
With the Node B of the current asynchronous mobile communiation system that is connected by mobile communication terminal between transmission/received signal intensity during less than designated value, comprise that adjacent cell information ground switches to described asynchronous mobile communiation system request, thereby described asynchronous mobile communiation system indicates the described asynchronous modem unit of described mobile communication terminal to drive described synchronous modem unit (first handles);
The place determines whether to switch and switching target small area at described asynchronous mobile communiation system, switches (second handles) to described synchronous mobile communication system indication;
In response to the request that the described asynchronous modem unit of the described mobile communication terminal of described asynchronous mobile communiation system request is switched, the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into communications status (the 3rd handles);
Described mobile communication terminal is connected to described synchronous mobile communication system (the reason) everywhere; And
Described asynchronous mobile communiation system discharges be connected (the 5th handles) with described mobile communication terminal.
2, method according to claim 1, wherein, described first processing is such processing: by the control of described asynchronous mobile communiation system, the described synchronous modem unit of described mobile communication terminal is transformed into holding state from closed condition.
3, method according to claim 2, wherein, described the 3rd processing may further comprise the steps: by the control of described asynchronous mobile communiation system, the described synchronous modem unit of described mobile communication terminal is transformed into ready state from described holding state; And the described synchronous modem unit of described mobile communication terminal is transformed into communications status from described ready state.
4, method according to claim 1, wherein, described first processing may further comprise the steps: the described synchronous modem unit of described mobile communication terminal is transformed into ready state from closed condition.
5, method according to claim 1, wherein, described first processing and described second is handled and also comprised following processing: described asynchronous mobile communiation system is with reference to the described adjacent cell information that receives from described mobile communication terminal, if neighbor cell all is the border cell between described asynchronous mobile communiation system and the described synchronous mobile communication system, then determine to switch.
6, method according to claim 1, wherein, described first processing and described second is handled and also comprised following processing: described asynchronous modem unit reports that to described asynchronous mobile communiation system described synchronous modem unit is driven.
7, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem unit and synchronous modem unit, this method comprises following processing:
With the Node B of the current asynchronous mobile communiation system that is connected by mobile communication terminal between transmission/received signal intensity during less than designated value, comprise that adjacent cell information ground switches to described asynchronous mobile communiation system request, thereby described asynchronous mobile communiation system indicates the described asynchronous modem unit of described mobile communication terminal that described synchronous modem unit is transformed into holding state (first handles) from closed condition;
After whether described asynchronous mobile communiation system had been determined to switch, described asynchronous modem unit indicated described synchronous modem unit to be transformed into ready state (second handles) from holding state;
After described asynchronous mobile communiation system has been determined switching target small area, indicate described synchronous mobile communication system to switch (the 3rd handles);
In response to the request that the described asynchronous modem unit of the described mobile communication terminal of described asynchronous mobile communiation system request is switched, the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into communications status (the reason) everywhere;
Described mobile communication terminal is connected to described synchronous mobile communication system (the 5th handles); And
Described asynchronous mobile communiation system discharges be connected (the 6th handles) with described mobile communication terminal.
8, method according to claim 7, wherein, described first processing and described second is handled and is also comprised following processing: in response to the adjacent cell information of described asynchronous mobile communiation system reference by described mobile communication terminal collection, if described neighbor cell all is the border cell between described asynchronous mobile communiation system and the described synchronous mobile communication system, then determine to switch.
9, method according to claim 7, wherein, described first processing and described second is handled and also comprised following processing: the described asynchronous modem unit of described mobile communication terminal reports that to described asynchronous mobile communiation system described synchronous modem unit has been transformed into holding state.
10, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem unit and synchronous modem unit, this method comprises following processing:
Report the cell information of current connection sub-district and activation to described asynchronous mobile communiation system in response to described mobile communication terminal, if the sub-district of described activation includes border cell, then described asynchronous mobile communiation system indicates the described asynchronous modem unit of described mobile communication terminal to drive described synchronous modem unit (first handles);
Cell information in response to the described activation of collecting from described mobile communication terminal by described asynchronous mobile communiation system, described asynchronous mobile communiation system determines whether to switch and switching target small area, thereby indicates described synchronous mobile communication system to switch (second handles);
In response to the request that the described asynchronous modem unit of the described mobile communication terminal of described asynchronous mobile communiation system request is switched, the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into communications status (the 3rd handles);
Described mobile communication terminal is connected to described synchronous mobile communication system (the reason) everywhere; And
Described asynchronous mobile communiation system discharges be connected (the 5th handles) with described mobile communication terminal.
11, method according to claim 10, wherein, described first processing is such processing: in response to the control of described asynchronous mobile communiation system, the described synchronous modem unit of described mobile communication terminal is transformed into holding state from closed condition.
12, method according to claim 11, wherein, described the 3rd processing may further comprise the steps: in response to the control of described asynchronous mobile communiation system, the described synchronous modem unit of described mobile communication terminal is transformed into ready state from described holding state; And the described synchronous modem unit of described mobile communication terminal is transformed into communications status from described ready state.
13, method according to claim 10, wherein, described first processing may further comprise the steps: in response to the control of described asynchronous mobile communiation system, the described synchronous modem unit of described mobile communication terminal is transformed into ready state from closed condition.
14, method according to claim 10, wherein, described second processing is such processing: if the sub-district of described activation all is a border cell, then determine to switch.
15, method according to claim 10, wherein, described first processing and described second is handled and also comprised following processing: the described asynchronous modem unit of described mobile communication terminal has driven described synchronous modem unit to described asynchronous mobile communiation system report.
16, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem unit and synchronous modem unit, this method comprises following processing:
Described mobile communication terminal is reported the sub-district of current connection and the cell information of activation to described asynchronous mobile communiation system, this is responded, if the sub-district of described activation includes border cell, then described asynchronous mobile communiation system indicates the described asynchronous modem unit of described mobile communication terminal that described synchronous modem unit is driven into holding state (first handles) from closed condition;
Described asynchronous mobile communiation system is with reference to the cell information of the described activation of the described mobile communication terminal under the holding state, determine whether to switch, and indicate described asynchronous modem unit that described synchronous mobile communication system is transformed into ready state (second handles) from described holding state;
Described asynchronous mobile communiation system is determined switching target small area and is indicated described synchronous mobile communication system to switch (the 3rd handles);
The request that the described asynchronous modem unit of the described mobile communication terminal of described asynchronous mobile communiation system request is switched, this is responded, and the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into communications status (the reason) everywhere;
Described mobile communication terminal is connected to described synchronous mobile communication system (the 5th handles); And
Described asynchronous mobile communiation system discharges be connected (the 6th handles) with described mobile communication terminal.
17, method according to claim 16, wherein, if the sub-district of the described activation of the described mobile communication terminal under the holding state all is a border cell, then described second processing is determined to switch.
18, method according to claim 16, wherein, described first processing and described second is handled and also comprised following processing: the described asynchronous modem unit of described mobile communication terminal reports that to described asynchronous mobile communiation system described synchronous modem unit has been transformed into holding state.
19, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem controller and synchronous modem, wherein, described synchronous mobile communication system is furnished with the base station that sends dummy pilot signal at the boundary with described asynchronous mobile communiation system, described dummy pilot signal has and the identical frequency of the employed frequency of described asynchronous mobile communiation system, and described method comprises following processing:
Described mobile communication terminal is reported the information of the sub-district of current sub-district that connects of described mobile communication terminal and activation to described asynchronous mobile communiation system, this is responded, when comprising border cell in the sub-district of activating, described asynchronous mobile communiation system indicates the described asynchronous modem unit of described mobile communication terminal to drive described synchronous modem unit (first handles);
When the signal strength signal intensity of the sub-district that sends dummy pilot signal among the signal that between the sub-district of described mobile communication terminal that drives by described synchronous modem unit and activation, sends and receive, the place determines whether to switch and switching target small area at described asynchronous mobile communiation system, switches (second handles) to the synchronous mobile communication system indication;
The request that the described asynchronous modem unit of the described mobile communication terminal of described asynchronous mobile communiation system request is switched, this is responded, and the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into communications status (the 3rd handles);
Described mobile communication terminal is connected to described synchronous mobile communication system (the reason) everywhere; And
Described asynchronous mobile communiation system discharges be connected (the 5th handles) with described mobile communication terminal.
20, method according to claim 19, wherein, described first processing is such processing: in response to the control of described asynchronous mobile communiation system, the described synchronous modem unit of described mobile communication terminal is transformed into holding state from closed condition.
21, method according to claim 20, wherein, described the 3rd processing is further comprising the steps of: in response to the control of described asynchronous mobile communiation system, the described synchronous modem unit of described mobile communication terminal is transformed into ready state from described holding state; And the described synchronous modem unit of described mobile communication terminal is transformed into communications status from described ready state.
22, method according to claim 19, wherein, described first processing comprises the steps: in response to the control of described asynchronous mobile communiation system, the described synchronous modem unit of described mobile communication terminal is transformed into ready state from closed condition.
23, method according to claim 19, wherein, described first processing and described second is handled and also comprised following processing: the described asynchronous modem unit of described mobile communication terminal has driven described synchronous modem unit to described asynchronous mobile communiation system report.
24, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem unit and synchronous modem unit, described synchronous mobile communication system with the borderline region of described asynchronous mobile communiation system in the base station that sends dummy pilot signal is equipped with, described dummy pilot signal has and the identical frequency of the employed frequency of described asynchronous mobile communiation system, and described method comprises following processing:
Described mobile communication terminal is reported the sub-district of current connection and the cell information of activation to described asynchronous mobile communiation system, this is responded, if comprise border cell in the sub-district of described activation, then described mobile communication system indicates the described asynchronous modem unit of described mobile communication terminal to be transformed into holding state (first handles) from closed condition;
If in the sub-district of described activation be transformed into the intensity of the intensity of the signal that sends between the described mobile communication terminal of holding state greater than the signal of the sub-district that sends described dummy pilot signal, then described asynchronous mobile communiation system determines whether to switch, and indicates described asynchronous modem unit that described synchronous modem unit is transformed into ready state (second handles) from described holding state;
Described asynchronous mobile communiation system is determined switching target small area, and indicates described synchronous mobile communication system to switch (the 3rd handles);
The request that the described asynchronous modem unit of described asynchronous mobile communiation system request is switched, this is responded, and the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into communications status (the reason) everywhere;
Described mobile communication terminal is connected to described mobile communication system (the 5th handles); And
Described asynchronous mobile communiation system discharges be connected (the 6th handles) with described mobile communication terminal.
25, according to the described method of claim, wherein, described first processing and described second is handled and also comprised following processing: the described asynchronous modem unit of described mobile communication terminal reports that to described asynchronous mobile communiation system described synchronous modem unit has been transformed into holding state.
26, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem unit and synchronous modem unit, this method comprises following processing:
Whether described asynchronous mobile communiation system exists border cell (first handles) in described mobile communication terminal is reported in the neighbor cell of described mobile communication terminal;
If in the described neighbor cell of described mobile communication terminal, comprise described border cell, then whether the described asynchronous modem unit of described mobile communication terminal is differentiated and is switched, and in response to the driving of described synchronous modem unit, and to the synchronization gain information of described asynchronous mobile communiation system report, described asynchronous mobile communiation system switches (second handles) to described synchronous mobile communication system indication;
In response to the request that the described asynchronous modem unit of the described mobile communication terminal of described asynchronous mobile communiation system request is switched, the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into stage of communication (the 3rd handles);
Described mobile communication terminal is connected to described synchronous mobile communication system (the reason) everywhere; And
Described asynchronous mobile communiation system discharges be connected (the 5th handles) with described mobile communication terminal.
27, method according to claim 26, wherein, the processing of the described synchronous modem unit of driving is further comprising the steps of in described second handles: the described synchronous modem unit of described mobile communication terminal is transformed into holding state from closed condition; And described mobile communication terminal is transformed into ready state from described holding state.
28, method according to claim 26, wherein, the PN offset information that described synchronization gain information is described base stations in mobile communication system.
29, method according to claim 28, wherein, the described synchronization gain information of the described synchronous modem unit of the described mobile communication terminal of described asynchronous mobile communiation system reference, and described mobile communication terminal is switched to obtaining synchronous described base station indication.
30, a kind of changing method of biobelt bimodule mobile communication system in the mixed mobile communication network of asynchronous mobile communiation system and synchronous mobile communication system that is furnished with asynchronous modem unit and synchronous modem unit, this method comprises following processing:
Described asynchronous mobile communiation system sends radio environment measurement control messages (first handles) to the described asynchronous modem unit of described mobile communication terminal;
In response to the radio environment measurement result, the described asynchronous modem unit of described mobile communication terminal determines whether to switch, drive described synchronous modem unit, and described synchronization gain information is included in the described radio environment measurement result, to report to described asynchronous mobile communiation system, thus, described asynchronous mobile communiation system indicates described synchronous mobile communication system to switch (second handles);
Switch to the described asynchronous modem unit request of described mobile communication terminal in response to described asynchronous mobile communiation system, the described synchronous modem unit of described asynchronous modem unit request of described mobile communication terminal is transformed into communications status (the 3rd handles);
Described mobile communication terminal is connected to described synchronous mobile communication system (the reason) everywhere; And
Described asynchronous mobile communiation system discharges be connected (the 5th handles) with described mobile communication terminal.
31, method according to claim 30, wherein, described radio environment is measured the switching condition that control messages comprises described mobile communication terminal.
32, method according to claim 26, this method is also carried out a processing, wherein, described asynchronous network indicates the described synchronous modem unit of described mobile communication terminal carrying out driving described synchronous modem unit before described first processing, thereby makes described synchronous modem unit be transformed into holding state.
33, method according to claim 32, wherein, if the described neighbor cell of described mobile communication terminal all is described border cell, then described asynchronous modem unit indication drives described synchronous modem unit.
34, method according to claim 30, wherein, described second processing is such processing: measure described radio environment after the described synchronous modem unit of described mobile communication terminal is transformed into holding state, and the described mobile communication terminal under the holding state is transformed into ready state, drives then.
CNA2005800261091A 2004-06-08 2005-06-07 Handover method for mixed mobile communication system of asynchronous network and synchronous network Pending CN101044697A (en)

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