WO2009086677A1

WO2009086677A1 - A method of establishing calling connection using bluetooth terminal and corresponding system

Info

Publication number: WO2009086677A1
Application number: PCT/CN2007/003972
Authority: WO
Inventors: Xing Chen
Original assignee: Zte Corporation
Priority date: 2007-12-29
Filing date: 2007-12-29
Publication date: 2009-07-16

Abstract

A method of establishing calling connection using Bluetooth terminal and corresponding system are disclosed by the invention.The method includes the following steps: Bluetooth terminal registers in a wimax network, and transmits calling information to a Wimax base station; the Wimax base station transmits calling information to a soft switch center or an IP multimedia system, the soft switch center or the IP multimedia system transmits calling information to a media gateway or to the internet according to the called number, so as to transmit calling information to the called terminal via the media gateway or Internet. Thereby calling connection between a Bluetooth terminal and a called terminal is established.Communication cost is reduced by the invention, quality of communicaton link is guaranteed, and mobility and portability of terminal equipments in limited range is enhanced, on the other hand diversity of VOIP terminal equipments is enhanced.

Description

Method for establishing call connection by using Bluetooth terminal and

TECHNICAL FIELD The present invention relates to the field of communications, and more particularly to a method of establishing a call connection using a Bluetooth terminal, and a call connection establishing system. Background technique

WiMAX is the abbreviation of World Interoperability for Microwave Access. It is based on the IEEE 802.16 standard and provides point-to-multipoint broadband wireless access in metro multi-vendor environments. Therefore, WiMAX is often used. It is called IEEE Wireless Metropolitan Area Network (MAN). The technology involves the work of two international organizations: the IEEE 802 Standards Committee 802.16 Working Group and the WiMAX Forum. The IEEE 802.16 working group is the standard setter; the WiMAX Forum is the promoter of IEEE 802.16 technology. The standard evolution and application modes are introduced separately. To date, the IEEE 802.16 family of standards includes multiple standards such as 802.16, 802.16a, 802.16c, 802.16d>, and 802.16e.

Table 1: Basic introduction of WiMAX protocol

Version number Description Working frequency Debugging mode

Belt

802.16 defines 10GHz - due to the short operating wavelength, wireless city 66GHz line-of-sight transmission (LOS) must be required. Multipath fading can be ignored by the single-carrier network. Therefore, in the standard of this frequency band, the standard wave and air connection still adopts a single Carrier (SC) modulation. Port, ie transmission

Frequency list

Carrier modulation

mode.

802.16ad booster port 2GHz ~ Due to the operation of the GHz frequency, the multi-carrier OFDM modulation distance (NLOS) method for non-view 11 GHz waves must be considered. Multipath fading must be considered. Video range transmission (NLOS)o Mouth agreement

802.16e adds 5GHz ~ 802. 16e physical layer implementation is basically the same as mobile 6GHz 802. 16d. The main difference feature is extended to OFDMA, providing support for automatic (HO, etc.) .

WiMAX is a standards-based technology that replaces existing wired and DSL (Digital Subscriber Loop) connections to provide wireless broadband access for the last mile. WiMAX will provide wireless broadband connectivity in fixed, mobile, and portable formats, and will eventually provide mobile wireless broadband connectivity without the need for direct line-of-sight base stations. In a typical 3 to 10 mile radius unit deployment, fixed and portable access applications provide up to 40 Mbps per channel, enabling simultaneous support for hundreds of commercial users using T-1 connection speeds or thousands of homes using DSL connection speeds User needs and provide sufficient bandwidth. Mobile network deployments will be able to deliver up to 15 Mbps in a typical (highest) 3 km radius unit deployment. The goal of Bluetooth (BlueTooth) technology is to provide a short-range, low-cost wireless transmission application technology. Intel is responsible for the development of semiconductor chips and transmission software, Ericsson is responsible for the development of wireless RF and mobile phone software, and IBM and Toshiba are responsible for the development of notebook interface specifications. In the second half of 1999, Microsoft, Motorola, Sankang, Lucent and the Bluetooth Special Group jointly launched the Bluetooth technology promotion organization, which set off a "Bluetooth" boom around the world. The global industry has developed a large number of applications for Bluetooth technology, making Bluetooth technology an extremely broad market prospect. The characteristics of Bluetooth technology include: using frequency hopping technology to resist signal fading; using fast frequency hopping and short packet technology to reduce co-channel interference and ensuring transmission reliability; using forward error correction (FEC) coding technology to reduce long-distance transmission Random noise effects; use 2.4GHz ISM (Industry Science Medical) band, no need to apply for a license; use FM (FM) modulation to reduce the complexity of the device. The transmission rate of this technology is designed to be 1MHz, and full-duplex communication is performed in a time division manner. The baseband protocol is a combination of circuit switching and packet switching. One hopping frequency transmits one synchronization packet, each packet occupies one time slot, and can also be extended to five time slots. Bluetooth technology supports an asynchronous data channel, or three concurrent synchronous voice channels, or a channel that simultaneously transmits asynchronous data and synchronized voice. Each voice channel supports 64 kbps of synchronous voice; the asynchronous channel supports an asymmetric connection with a maximum rate of 721 kbps, a reverse acknowledgment rate of 57.6 kbps, or a symmetric connection of 432.6 kbps. Bluetooth systems can implement both point-to-point and point-to-multipoint connections. In the case of a point-to-multipoint connection, the channel is shared by several Bluetooth units. Two or more units sharing the same channel constitute the so-called ^ piconet. A 4敫^: There are 1 main unit and up to 7 active slave units in the network. The Bluetooth protocol is divided into A. Levels B, C, and D. Among them, Level A (class A): After two Bluetooth devices establish a paired connection, they cannot connect with other Bluetooth devices; Level B (class B): Two Bluetooth devices are established. After connecting, the two devices cannot send connection requests to other Bluetooth devices, but other Bluetooth devices can send connection requests to the two devices; Level C (class C): After two Bluetooth devices establish a connection, the two devices can Send connection requests to other Bluetooth devices, but other Bluetooth devices cannot send connection requests to these two devices; Level D (class D): After two Bluetooth devices establish a connection, they can send requests to and from other Bluetooth devices. Existing WiMAX Terminal access devices are available in the following forms: USB WiMAX wireless data card, PCMCIA (PC Memory Card International Association) wireless data network card, and WiMAX with RJ 11 interface MODEM (World Interoperability for Microwave Access Modem) terminal equipment. Among them, USB WiMAX wireless data card and PCMCIA WiMAX wireless data network card are mainly for customers with high mobility requirements, and can realize data in the case of high-speed movement. Access, WiMAX MODEM terminal equipment providing RJ11 interface is mainly for the customer group or SME users to solve the network access and VoIP customer groups, the mobility of the voice terminal is often limited by the length of the telephone line, and the quality of the cable The present invention provides a method for establishing a call connection using a Bluetooth terminal for a global: wave access interoperability network, in view of one or more of the problems described above, And a call connection establishing system. The method for establishing a call connection by using a Bluetooth terminal according to an embodiment of the present invention includes the following steps:: a Bluetooth terminal registers with a Wimax network, and sends call information to a Wimax base station; the Wimax base station sends the call information to the soft Switching center or IP multimedia And the softswitch center or the IP multimedia subsystem sends the call information to the media gateway or the Internet according to the called number to send the call information to the called terminal through the media gateway or the Internet, thereby establishing a connection between the Bluetooth terminal and the called terminal. Call connection. The Bluetooth terminal acquires the number assigned to the softswitch center or the IP multimedia subsystem while registering to the Wimax network. Wherein, when the called terminal is a fixed telephone or a mobile phone, the softswitch center or the IP multimedia subsystem sends the call information to the media gateway. When the called terminal is a VoIP phone, the Softswitch Center or IP Multimedia Subsystem sends the call information to the Internet. The process of the Bluetooth terminal transmitting the call information to the Wimax base station includes the following steps: The Bluetooth terminal converts the call information into Bluetooth information, and sends the Bluetooth information to the Wimax modem; the Wimax modem converts the Bluetooth information into Internet information, and processes the Internet information. , routing is selected, and the processed Internet information is sent to the Wimax base station on the selected route. Specifically, the Wimax modem encapsulates the Internet information. A call connection establishing system according to an embodiment of the present invention includes: a Bluetooth terminal dialing module, configured to complete a call in a Bluetooth mode; a Bluetooth terminal radio frequency module, configured to convert call information into Bluetooth information, and send the Bluetooth information to the Wimax mobile phone. Module; Wimax basket module, used to convert Bluetooth information into information that can be recognized by the VoIP phone module, and send information that the VoIP phone module can recognize to the VoIP phone module; VoIP phone module, for routing according to the called number Selecting, and transmitting information identifiable by the VoIP phone module to the Wimax radio module on the selected route; and a Wimax radio module for processing information identifiable by the VoIP phone module, and capable of processing the processed VoIP phone module The identified information is sent to the Wimax base station to establish a call connection between the Bluetooth terminal and the called terminal. The Wimax RF module encapsulates the information that the VoIP phone module can recognize. Compared with the existing Voice over Internet Protocol (VoIP) technology, the present invention achieves the advancement of mobility and portability of the terminal, and achieves the effect of integrating multiple communication modes into the same mobile terminal, thereby saving The communication cost of making calls through the traditional network improves the reliability of the voice communication link and the utilization of the WiMAX network bandwidth. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the enclosure: 1 is a networking diagram of a VoIP network implementation of a Bluetooth terminal in a WiMAX network; FIG. 2 is a hardware processing flowchart of a VoIP implementation of a Bluetooth terminal in a WiMAX network; and FIG. 3 is a software processing flowchart of a Bluetooth terminal implementing a VoIP under a WiMAX network. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. Referring to FIG. 1 , a networking process for implementing VoIP by a Bluetooth terminal under a WiMAX network is illustrated. As shown in Figure 1, the process includes the following steps:

S102, the Bluetooth terminal is registered to the WiMAX modem (WiMAX MODEM) network via Bluetooth, and is connected to the Softswitch (SS) or the IP Multimedia Subsystem (IMS) through the WiMAX MODEM, and the SS or the IMS is a mobile phone. The terminal assigns a given telephone number, and the handset terminal sends the call information to the WiMAX MODEM.

S104, the WiMAX MODEM receives the call information of the Bluetooth terminal, and the () hand call information is sent to the WiMAX base station.

S 106. The WiMAX base station sends the call information to the SS or the IMS. S108, SS or IMS completes the call routing according to the called number, calls the PSTN phone and

Mobile Phone (Public Switched Telephone Network and Mobile) is sent to the Media Gateway Controller (MGC)

S110, the MGC completes the call to the PSTN/Mobile Phone, and the called party picks up the phone and establishes a call.

S 112, calling VoIP, sending to the Internet (Internet). S114, forwarded by the Internet to the called VoIP terminal device, and the called party picks up the phone and establishes a call.

S116, the data service of the Bluetooth terminal can also be directly sent to the Internet through the base station. Referring to FIG. 2, a hardware processing flow for implementing VoIP by a Bluetooth terminal under a WiMAX network is illustrated. Its The call connection establishment system for implementing VoIP under the WiMAX network includes: a Bluetooth terminal dialing hardware module (ie, a Bluetooth terminal dialing module), a Bluetooth terminal Bluetooth radio frequency hardware module (ie, a Bluetooth terminal radio frequency module), and a WiMAX MODEM Bluetooth radio frequency hardware module. (ie, Wimax basket module), WiMAX MODEM VoIP hardware module (ie, VoIP phone module;), and WiMAX MODEM WiMAX hardware RF module (ie, Wimax RF module). The Bluetooth terminal is composed of a traditional C network, or a G network, or a Bluetooth terminal dialing hardware module and a Bluetooth terminal Bluetooth radio hardware module on the 3G mobile phone; the WiMAX MODEM integrates a WiMAX MODEM Bluetooth RF hardware module and a WiMAX MODEM VoIP hardware module. And the WiMAX MODEM WiMAX hardware RF module. As shown in FIG. 2, the process includes the following steps: S202. The Bluetooth terminal dialing hardware module completes dialing in the Bluetooth mode.

S204, the Bluetooth terminal Bluetooth radio hardware module sends the call information to the WiMAX MODEM Bluetooth radio hardware module.

S206, WiMAX MODEM Bluetooth RF hardware module delivers call information to the WiMAX MODEM VoIP hardware module for processing. S208, after the VoIP hardware module completes the processing of the call information, sends the message to the WiMAX MODEM.

The WiMAX hardware RF module completes the WiMAX packet encapsulation process.

The S210, WiMAX MODEM WiMAX hardware RF module sends the encapsulated call information to the WiMAX base station (BS).

S212: The WiMAX BS sends the encapsulated call information to a core IP network (Core IP network). S214, the Core IP network selects a route to the call destination through the MGC.

S216. The Core IP network forwards the encapsulated call information to the called terminal.

S218, the called terminal picks up the phone and answers the call, and the call is completed, and the call is established. That is to say, after the Bluetooth terminal dialing hardware module completes dialing, the sound signal is converted into a Bluetooth signal, and is transmitted from the Bluetooth terminal Bluetooth RF hardware module, and the Bluetooth terminal Bluetooth RF hardware module The Bluetooth and the WiMAX MODEM Bluetooth RF hardware module exchange Bluetooth data. After receiving the Bluetooth signal, the WiMAX MODEM Bluetooth RF hardware module converts the voice information in the Bluetooth signal into an IP packet and converts the voice information into IP 4艮. After the text is processed by the WiMAX MODEM VoIP hardware module, it is sent to the base station through the WiMAX MODEM WiMAX hardware RF module, and is re-encapsulated into the IP address on the base station side, and then sent to the corresponding media gateway controller (MGC) to find the voice. After the destination address, the voice call is established directly. Referring to FIG. 3, a software processing flow for implementing VoIP by a Bluetooth terminal under a WiMAX network is illustrated. As shown in Figure 3, the process includes the following steps:

S302, the Bluetooth terminal is powered on and initialized, and the application program is completed. S304, the device registration of the Bluetooth terminal on the WiMAX MODEM is completed manually or automatically, and the IP address of the WiMAX MODEM local area network (LAN) side is obtained.

S306. If the device registration is unsuccessful, indicating that the Bluetooth terminal device is unavailable.

S308, start user registration. S310, the registration successfully enters the idle interface of the Bluetooth network. At this time, the Bluetooth terminal user completes the telephone number registration service on the SS or IMS of the core network, and assigns a legal telephone number to the terminal.

S312, if the registration is unsuccessful, the user is prompted to register unsuccessfully.

S314. In the idle mode, call dialing is performed. S316, transmitting.

S318, the called can be PSTN, 3G grid phone, GSM, CDMA, VoIP, etc.

S320, the call information is converted into a Bluetooth signal by the Bluetooth radio module, and sent to the WiMAX MODEM.

S322, WiMAX MODEM converts the Bluetooth signal into an Ethernet signal. S324, WiMAX MODEM hands the voice signal to the VoIP hardware module for processing. S326, the VoIP hardware module performs routing according to the purpose of the call.

S328, the WiMAX MODEM successful call routing, call information is sent through the WiMAX network to the core network (Core IP) ₀

S330, if the routing is unsuccessful, the calling destination is unreachable. S332. The core network sends the call information to the called terminal device, and the call is successful.

S334, the called party is off the plane, and the call starts. In summary, the present invention allocates a LAN side IP to a Bluetooth terminal by supporting a Bluetooth terminal to connect to a Bluetooth module of the WiMAX MODEM, and completes registration of a phone number assigned by the SS or IMS of the Bluetooth terminal in the system, and the Bluetooth terminal dials the remote phone. The Bluetooth hardware module transmits voice to the WiMAX MODEM, and the Bluetooth processing module of the WiMAX MODEM completes the conversion of the Bluetooth signal to the IP data message, and then processes the WAN hardware module from the Wide Area Network (WAN) through the WiMAX. The hardware radio module sends the voice information to the WiMAX base station, and completes the route lookup of the far-end called telephone through the media gateway device (MG) behind the base station, and the call is successful. That is, the present invention provides a mobile terminal supporting Bluetooth dialing under the WiMA network.

VoIP solution. Under the WiMAX network supporting Bluetooth access, the mobile terminal user switches to the Bluetooth mode without having to register to connect to the existing G network, C network or 3G network, and only needs to dial the voice through the WiMAX MODEM VoIP function in Bluetooth mode. When the user number of the G network, C network or 3G network is called externally, only the unconditional transfer to the telephone number registered in the Bluetooth mode can be set to ensure that no call is missed. The invention reduces the communication cost, guarantees the quality of the communication link, and also increases the mobility and portability of the terminal device within a certain range, and increases the diversity of the VoIP terminal device in another aspect. The above is only the embodiments of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. All modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

Claim

A method for establishing a call connection using a Bluetooth terminal, which is used in a Wimax or global wave access interoperability network, and includes the following steps:

The Bluetooth terminal registers with the Wimax network and transmits call information to the Wimax base station; the Wimax base station transmits the call information to the softswitch center or the IP multimedia subsystem;

Sending, by the softswitch center or the IP multimedia subsystem, the call information to a media gateway or the Internet according to the called number, to send the call information to the called terminal by using the media gateway or the Internet, and further establishing a location A call connection between the Bluetooth terminal and the called terminal.

The method according to claim 1, wherein the Bluetooth terminal acquires a number assigned to the softswitch center or the IP multimedia subsystem while registering to the Wima network.

3. The method according to claim 2, wherein the softswitch center or IP multimedia subsystem sends the call information to the media gateway when the called terminal is a fixed telephone or a mobile phone .

4. The method according to claim 2, wherein when the called terminal is a VoIP phone, ie, an internet protocol voice call, the softswitch center or IP multimedia subsystem sends the call information to the the Internet.

The method according to any one of claims 1 to 4, wherein the process of the Bluetooth terminal transmitting the call information to the Wimax base station comprises the following steps:

The Bluetooth terminal converts the call information into Bluetooth information and transmits the Bluetooth information to a Wimax modem;

The Wima modem converts the Bluetooth information into Internet information, processes the Internet information, selects a route, and transmits the processed Internet information to the Wimax base station on the selected route.

6. The method according to claim 5, wherein the Wimax modem performs encapsulation processing on the Internet information.

A call connection establishment system for a Wimax network, comprising:

Bluetooth terminal dialing module, used to complete the call in Bluetooth mode;

a Bluetooth terminal radio module, configured to convert call information into Bluetooth information, and send the Bluetooth information to the Wimax basket module;

The Wimax basket module is configured to convert the Bluetooth information into information recognizable by the VoIP phone module, and send information identifiable by the VoIP phone module to the VoIP phone module;

The VoIP phone module is configured to perform routing according to the called number, and send information identifiable by the VoIP phone module to the Wimax radio frequency module on the selected route;

The Wimax radio frequency module is configured to process information that can be recognized by the VoIP phone module, and send information that can be recognized by the processed VoIP phone module to a Wimax base station to establish a call between the Bluetooth terminal and the called terminal. connection.

8. The system according to claim 6, wherein the Wimax radio frequency module encapsulates information that can be identified by the VoIP phone module.