CN1487755A - Position directional method, mobile radio system and orienting equipment for mobile station corresponding base station - Google Patents
Position directional method, mobile radio system and orienting equipment for mobile station corresponding base station Download PDFInfo
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- CN1487755A CN1487755A CNA031551335A CN03155133A CN1487755A CN 1487755 A CN1487755 A CN 1487755A CN A031551335 A CNA031551335 A CN A031551335A CN 03155133 A CN03155133 A CN 03155133A CN 1487755 A CN1487755 A CN 1487755A
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- base station
- travelling carriage
- access sequence
- orientation
- mobile radio
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- 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
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
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- 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
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/283—Power depending on the position of the mobile
Abstract
Determining the direction of a mobile telephone's (MS) position in relation to a base station (BS) in a mobile radiotelephone service system (SYS) operating according to a mobile radiotelephone service standard lets the MS transmit an access sequence (S) to the BS, which is one of several access sequences supplied by a mobile radiotelephone service standard for signaling connection requirements. Independent claims are also included for the following: (a) A mobile telephone system with mobile telephones and a base station to process multiple access sequences; (b) and for a device for determining the direction of a mobile telephone's position in relation to a base station.
Description
Technical field
The present invention relates to a kind ofly in according to the mobile radio system of mobile radio standard work, travelling carriage be carried out directed method with respect to the position of base station, and relate to a kind of corresponding mobile wireless system and a kind of orientation equipment.
Background technology
In the scope of 3GPP (third generation cooperative programme), at present UMTS-TDD-standard (Universal Mobile Telecommunications System, time division duplex) is carried out standardization.According to this standard code (referring to 3GPPTS 25.224, V5.1.0, chapter 5.6.3): be linked into mobile radio network first for travelling carriage, need to send an access sequence and provide the connection request signaling.In this standard (3GPP TS25.223, V5.1.0, appendix B, chapter B2), 256 kinds of such access sequences have been defined.This access sequence of each that stipulate in the UMTS-TDD-standard is that 128 chips are long.Distribute in these 256 access sequences 8 for each base station or each wireless area.Travelling carriage passes through to know operational access sequence (referring to 3GPP TS 25.223, V5.1.0, the form in the chapter 9.3) in conjunction with other cell parameter (basic intermediate sequence sign indicating number, scrambler) of base station regularly.So travelling carriage can be selected in these 8 access sequences randomly, and it is transferred to the base station to send the connection request signaling.This realizes that in so-called uplink pilot time slot (UpPTS) this pilot time slot is located immediately at before first time slot of up-link transmission frame in time.If the base station receives one in the described access sequence, then it does not know at first this emission is to come from which travelling carriage.Therefore, in next procedure, utilize the access sequence that in advance send to relevant travelling carriage to distribute a definite RACH resource by the base station according to above-mentioned standard, travelling carriage sends to the base station by this RACH resource with an identification code that is used to identify oneself subsequently.At this, the distribution of RACH resource realizes by so-called FPACH (physical access channel).Utilize this mode, the base station can determine that at last which travelling carriage has sent the connection request signaling.
In same mobile radio standard, need regulation orientation to be carried out in the position of travelling carriage with respect to each base station.If adopted directional antenna in the base station, then this orientation is possible.For this orientation, regulation is analyzed on the UL DPCH (uplink dedicated physical channels) or the signal on the PUSCH (physical uplink link sharing channel) by the base station for this reason at present.This is some Traffic Channels, and travelling carriage is after connecting, also promptly be transferred to the base station to useful data on these Traffic Channels after sending the connection request signaling in the manner described above.Set up for this connection, reserve corresponding transfer resource (extended code, frequency range, time slot) must for each travelling carriage.At standard 3GPP TS 25.225, V5.1.0, chapter 5.2.14 and TS 25.305, V5.4.0 told about with UL DPCH or PUSCH in the chapter 8 and carried out orientation.
Summary of the invention
The present invention based on task be to carry out in another way above-mentioned orientation.
This task utilizes the described method of claim 1, the described mobile radio system of claim 9 and the described orientation equipment of claim 10 to solve.Advantageous embodiment of the present invention and expansion scheme are provided by dependent claims.
Be used in the method for travelling carriage being carried out orientation with respect to the position of base station according to the mobile radio system of mobile radio standard work for of the present invention, its regulation: by described travelling carriage an access sequence is transferred to the base station, and by carrying out orientation by the access sequence that the base station received.Access sequence herein relates to by one in a plurality of access sequences of mobile radio standard regulation, is used for sending the connection request signaling so that be moved platform to the base station,
At this, travelling carriage can be understood that various mobile radio units arbitrarily.The base station can be understood as that static state or mobile various other radio stations arbitrarily here.Mobile radio system is understood as that various wireless systems arbitrarily here, has wherein adopted described travelling carriage and base station.That mobile radio standard herein is understood as that is that one of described wireless system adopts, stipulated to be used to send the various standards of the access sequence of connection request signaling.
Before carrying out orientation by the transfer resource of distributing to each travelling carriage, at first set up a connection according to above-mentioned prior art, the present invention can advantageously realize just carrying out before transfer resource is distributed to travelling carriage directed during this period.This can realize during this travelling carriage is linked into system for the first time when travelling carriage puts into operation in mobile radio system first, because according to the present invention, has adopted the access sequence that is given for transmission connection request signaling to orientation.
Start described prior art with respect to article, the present invention has the following advantages: for orientation, do not need branch to be used in the transfer resource that service communication connects, for example time slot, frequency range, extended code or scrambler etc.Another advantage is, can send the access sequence of for example abideing by the UMTS-TDD-standard in a special for this reason time slot (UpPTS) of reserving, and makes these access sequences only form with other access sequence and disturbs, and can not form interference with Traffic Channel.But by selecting access sequence suitably, the interference between the access sequence can be far smaller than the interference that is brought by Traffic Channel.
The present invention also has an advantage to be, orientation can be performed before giving travelling carriage channel allocation.Therefore, for example can when channel allocation, consider directed result.On the direction of being measured, exist another that base station of idling-resource still can be provided if learn, and the transfer resource that connects the request of foundation that base station pointed nearly runs out, so, especially, can refuse side by side connection request signaling by this access sequence sent.
According to first embodiment of the present invention, the access sequence that is sent by travelling carriage both had been used to carry out orientation, also was used for sending the connection request signaling by described travelling carriage.Therefore, send access sequence and in the base station, receive access sequence and advantageously be used for two purposes simultaneously.
Another of the embodiment of the present invention improves regulation, storage by the result of the performed orientation in base station and storage from this result to for carrying out the corresponding relation the access sequence that this orientation adopted.Give the base station identity code notification that identifies oneself clearly by travelling carriage time point afterwards.Generation from the identification code of this travelling carriage to for carrying out the corresponding relation the access sequence that this orientation adopted.At last, produce from the result that stored through for carrying out access sequence that this orientation adopted again to the corresponding relation the identification code of travelling carriage.Utilize this mode can advantageously solve following problem, that is: when travelling carriage is linked into mobile radio system first by sending access sequence, the base station at first and do not know which travelling carriage it is, also promptly which kind of identification code this relevant travelling carriage has.According to the present invention, though on this time point, carry out orientation by the access sequence that is received, owing to do not know this identification code, so still can not distribute the directed result who is obtained.Have only after travelling carriage is told its identification code to the base station, just in next procedure, carry out this distribution.At this, can notify described identification code by transmitting the access sequence that has adopted in advance again, make it possible to realize simply from this identification code to the corresponding relation the directed result.
Preferably, travelling carriage can be notified described identification code by above-mentioned second step of this travelling carriage when inserting mobile radio system first.Aforesaid, this second step regulation: the base station is distributed a RACH resource according to the access sequence that is received to travelling carriage, and travelling carriage is set up needed out of Memory to connection subsequently and is transferred to the base station on this resource.At this moment, this information also comprises the identification code of travelling carriage.In addition, on the RACH resource of being distributed, travelling carriage also is transferred to the base station to same access sequence with described information, makes from the access sequence that adopted to realizing clear and definite corresponding relation the identification code of travelling carriage.Utilize this mode can realize clear and definite corresponding relation the identification code from directed result to travelling carriage.
According to second embodiment of the present invention, give wireless area of base station assigns, wherein wireless area is understood that the wireless service areas of base station.In this embodiment, described is to carry out the access sequence that this orientation adopted ad hoc to be reserved in the wireless area of this base station at least to be used for carrying out orientation, sends the connection request signaling so that stop with this access sequence in this wireless area.This has advantageously distinguished following access sequence, promptly the access sequence that in fact is used to send connection request signaling (as defined in the mobile radio standard) in this wireless area and those access sequences that are used to orientation is made a distinction.Therefore, especially can also carry out orientation and do not send connection request signaling-for example set up to relevant travelling carriage communicate to connect during.At this, directedly reserve access sequence and only be set in certain time delay for special the execution, make can reserve different access sequences in the described access sequence for this reason at different time points.So remaining access sequence is moved platform respectively and is used for sending the connection request signaling.
According to a kind of improvement of this embodiment of the present invention, distribute the described access sequence that adopts for directed purpose for described travelling carriage by described base station.This realized that its prerequisite was the identification code that the base station has been learnt travelling carriage before travelling carriage sends access sequence.Then, the base station can on purpose utilize the identification code of this travelling carriage and notify this travelling carriage: which access sequence it should send to be used for directed purpose.
According to a kind of improvement project, distribute a time point to be used to send this access sequence for described travelling carriage by described base station.This can advantageously realize: same access sequence can side by side be assigned to a plurality of travelling carriages to be used for carrying out orientation.So, can put the result who distributes by the performed orientation of this access sequence by consideration access sequence each time of reception in the base station simply.Also be, by distributing different time points to allow a plurality of different access radio station send same access sequence, will automatically in the base station, obtain different time of reception points, thereby can realize from directed result through time of reception point again to the corresponding relation the travelling carriage identification code.
According to another improvement project, distribute a transmitting power to be sent as the access sequence of carrying out described orientation and adopting for described travelling carriage by described base station.Utilize this mode can guarantee that the access sequence that is sent by travelling carriage can arrive the base station with sufficiently high received power.
Mobile radio system of the present invention and the location of mobile station that is used for mobile radio system of the present invention carry out directed equipment is so constructed, so that it can be carried out method of the present invention and have required for this reason device.
Description of drawings
Tell about the present invention in detail by embodiment shown in the drawings below, wherein:
Fig. 1 shows the part of mobile radio system,
Fig. 2 shows the base station of mobile radio system shown in Figure 1, and
Fig. 3 shows the content of the memory of base station shown in Figure 2.
Embodiment
Shown in Figure 1 is the part of UMTS-TDD-mobile radio system SYS.Obviously the present invention also can be applied to other mobile radio system.Fig. 1 has only provided the wireless area C of mobile radio system SYS.This wireless area C belongs to base station BS.A mobile station MS and another mobile station MS 1 are arranged in wireless area C.The parenthetic Reference numeral that illustrates at Fig. 1 is the selectable signal of expression.Come to tell about in detail the first embodiment of the present invention below, wherein do not transmit these selectable signals.
As described in the article beginning, the UMTS-TDD-standard has also stipulated 8 different access sequences for each wireless area C, so that be used for to base station connection request signaling by travelling carriage.Mobile station MS among Fig. 1 sends base station BS to one among this access sequence S to send the connection request signaling.Base station BS has been equipped with a directional antenna A who is realized by antenna field.By directional antenna A, base station BS can come mobile station MS is carried out orientation with respect to the position of base station BS by the incident direction of measuring access sequence S.It is known in those skilled in the art by directional antenna the signal that is received being carried out orientation, does not repeat them here.Each mobile station MS, MS1 send to base station BS to one in the described access sequence when connection request.For this reason, broadcast whole 8 access sequences that need in the C of its sub-district, use, and therefrom choose one randomly by travelling carriage by the base station.Mobile station MS is transferred to base station BS to access sequence S, and another mobile station MS 1 then is transferred to base station BS to another access sequence S1.Base station BS is carried out above-mentioned orientation at access sequence S, the S1 of each reception.In addition, this base station is also distributed to each mobile station MS, MS1 to the transfer resource of desirable connection usefulness in following step.
Fig. 2 shows the base station BS of Fig. 1.Shown is to understanding the part of outbalance of the present invention.Base station BS has one and transmits and receives unit TRx, and it is connected with directional antenna A.The described unit TRx that transmits and receives is connected with a signal processing unit SIG, the signal that this signal processing unit is used to handle the signal that is received through antenna A and needs to transmit through this antenna A.In addition, base station BS also has an equipment R who is used to carry out above-mentioned orientation.Access sequence S, S1 that this orientation equipment analysis is received through antenna A, and obtain the direction that described access sequence incides antenna A.Directed accordingly result E, E1 are stored among the memory M of base station BS at each received access sequence with being separated.
In Fig. 3, show the content of the memory M of Fig. 2 compendiously with form.At this, memory M has into the typing item of row, to be used for being positioned at each mobile station MS, the MS1 of wireless area C.Form among Fig. 3 has provided memory M in two different time points t1, the content at t2 place.At very first time point t1, received two access sequence S, S1 by base station BS, and carried out directed respectively from two mobile station MSs shown in Figure 1, MS1.So, in memory, both stored access sequence S, also (with this access sequence accordingly) storage corresponding results E, E1.Subsequently, as defined in the UMTS-TDD-standard, give by sending each mobile station MS, the MS1 that access sequence provides the signaling request by a message FP, FP1 (see figure 1) by base station BS and to distribute a RACH resource, to be used for second step that travelling carriage is linked into mobile communication system first.In this second step, each mobile station MS, MS1 send identification code K, a K1 to base station BS, and this identification code has identified each mobile station MS, MS1 (see figure 1) clearly.Because the standard of investigating according to this place is to distribute a definite RACH resource to carry out described second step by the base station to travelling carriage, the base station can be distributed to access sequence S, the S1 that is sent by relevant mobile station MS, MS1 in advance to described identification code K, K1 clearly.According to shown in Figure 3, subsequently at second time point t2, with directed E as a result, E1 corresponding identification code K, the K1 of storage each mobile station MS, MS1 in the memory M of base station BS accordingly.At this, this corresponding relation is realized by access sequence S, the S1 that is adopted in first and second steps when travelling carriage is linked into mobile radio system first.
Obviously, orientation equipment R shown in Figure 2 and memory M can be in base station BSs, but can be included in the unit that is arranged in outside the base station BS, and the central location that is connected with a plurality of base stations of mobile radio system for example is as base station controller.
In this first embodiment, each access sequence that is transmitted in mobile station MS, the first step of MS1 when being linked into mobile radio system SYS is first carried out orientation by base station BS.
Next tell about the second embodiment of the present invention.This be please refer to the Reference numeral shown in Fig. 1 parenthetic.In the wireless area C of this embodiment, in fact do not adopt by the UMTS-TDD-mobile radio standard for this reason defined, be moved platform and be used for sending all 8 access sequences of connection request signaling to the base station.Substituting be that among Fig. 1 two are used to directed access sequence S, S1 and are ad hoc reserved in this embodiment carrying out described orientation, thereby can not be used for the connection request signaling of travelling carriage.Though can provide same access sequence for domination this moment in another wireless area C of mobile radio system, to reserve scarcely in this access sequence, the identical access sequence of wireless area C investigated of place is carried out orientation therewith.
In this embodiment, each mobile station MS of being directed to needs of base station BS, MS1 distribute access sequence S, the S1 of a reservation.And, except described access sequence S, S1, base station BS is returned each mobile station MS, MS1 distributes transmitting power P, a P1 and time point t, a t1, and wherein travelling carriage should send each access sequence S, S1 with above-mentioned power with on described time point subsequently.Then, base station BS by distribute to mobile station MS, MS1's and carry out above-mentioned orientation by the access sequence S, the S1 that send to base station BS to travelling carriage subsequently.
In order in a second embodiment access sequence S, S1 to be distributed to mobile station MS, MS1, need allow the base station know identification code K, the K1 of each travelling carriage in advance.By above that told about by first embodiment, according to the two-stage type of UMTS-TDD-standard cut-in method first, base station BS just can obtain this information.As shown in Figure 1, in a second embodiment, when between mobile station MS, MS1 and base station BS, setting up connection V, the V1 that is used for the useful data transmission, just carry out described orientation with the form of Traffic Channel.
Obviously also can make up described first and second embodiment.So formerly orientation can side by side be implemented (according to first embodiment) with the connection request signaling on the time, and (in existing connection) is updated according to second embodiment subsequently.
For replacing sending access sequence S at time point T, T1, base station BS also can be notified mobile station MS, MS1: this travelling carriage should repeatedly, for example periodically send access sequence S, S1, so that can both upgrade described orientation at every turn.
Be used to send the transmitting power P of described access sequence S, S1, the alternative of P1 as announcement in a second embodiment, perhaps on its basis, also can stipulate: under the situation of the transmission attempt failure of access sequence S, the S1 of mobile station MS, MS1, improve the transmitting power that is used for transmission attempt again respectively step by step by travelling carriage.Send access sequence S by the time point T that distributes to mobile station MS, base station BS can be distributed to mobile station MS to the access sequence S that is received clearly, and travelling carriage also needn't side by side transmit its identification code K with access sequence.Also promptly, base station BS know it oneself distributed which access sequence S so that on which time point T, T1, send for which mobile station MS, MS1.Therefore, by the point of the time of reception in the base station BS, access sequence S, S1 that each reception can easily be determined in the base station come from which mobile station MS, MS1.
Claims (10)
1. be used for travelling carriage (MS) being carried out directed method with respect to the position of base station (BS) at mobile radio system (SYS) according to mobile radio standard work, wherein:
-stipulate a plurality of access sequences (S) by mobile radio standard, be used for sending the connection request signaling so that be moved platform to the base station,
-be transferred to base station (BS) to one in the described access sequence (S) by described travelling carriage (MS),
-and carry out orientation by the access sequence (S) that is received by base station (BS).
2. the method for claim 1, wherein:
The access sequence (S) that is sent by travelling carriage (MS) both had been used to carry out orientation, also was used for sending the connection request signaling by described travelling carriage (MS).
3. method as claimed in claim 2, wherein:
-storage by the result (E) of base station (BS) performed orientation and storage from this result (E) to being the corresponding relation that carries out the access sequence (S) that this orientation adopted,
-by travelling carriage time point (t2) afterwards an identification code (K) that identifies oneself clearly is notified to base station (BS),
-produce from the identification code (K) of this travelling carriage (MS) to being the corresponding relation that carries out the access sequence (S) that this orientation adopted,
-and, produce from the result (E) that stored through described to carrying out the directed access sequence (S) that is adopted again to the corresponding relation the identification code (K) of travelling carriage (MS).
4. the method for claim 1, wherein:
-distribute a wireless area (C) for base station (BS),
-and described is to carry out the access sequence (S) that this orientation adopted ad hoc to be reserved in this wireless area (C) at least to be used for carrying out orientation, sends the connection request signaling so that stop with this access sequence (S) in this wireless area (C).
5. method as claimed in claim 4, wherein:
Distribute the described access sequence (S) that adopts for directed purpose for described travelling carriage (MS) by described base station (BS).
6. method as claimed in claim 5, wherein:
Distribute a time point (T) to carry out described orientation for described travelling carriage (MS) by described base station (BS) to be used to sending access sequence (S).
7. as the described method in one of claim 5 or 6, wherein:
Distribute a transmitting power (P) to be sent as the access sequence of carrying out described orientation and adopting for described travelling carriage (MS) by described base station (BS).
8. as the described method of one of claim 4-7, wherein:
During the connection (V) of travelling carriage (MS) is led in existence, realize the transmission of described access sequence (S) and carry out directed by this access sequence.
9. mobile radio system (SYS),
-have at least one travelling carriage (MS) and a base station (BS),
-carrying out work according to mobile radio standard, this mobile radio standard has been set a plurality of access sequences so that being moved platform is used for sending the connection request signaling to the base station,
-this travelling carriage (MS) is transferred to base station (BS) to one in the described access sequence,
-and, have an orientation equipment (R), be used for travelling carriage (MS) being carried out orientation with respect to the position of base station (BS) by the access sequence (S) that receives from the base station.
10. be used for travelling carriage (MS) being carried out directed equipment (R) with respect to the position of base station (BS) at mobile radio system (SYS) according to mobile radio standard work, described mobile radio standard has been set a plurality of access sequences so that being moved platform is used for sending the connection request signaling to the base station, this equipment by send from travelling carriage (MS) and carry out described orientation by the access sequence (S) that base station (BS) receives.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10238796.6 | 2002-08-23 | ||
| DE2002138796 DE10238796B4 (en) | 2002-08-23 | 2002-08-23 | Method for determining the position of a mobile station relative to a base station, mobile radio system and direction determination device |
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| CN1487755A true CN1487755A (en) | 2004-04-07 |
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| CNA031551335A Pending CN1487755A (en) | 2002-08-23 | 2003-08-22 | Position directional method, mobile radio system and orienting equipment for mobile station corresponding base station |
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| DE (1) | DE10238796B4 (en) |
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| DE19754783A1 (en) * | 1997-12-10 | 1999-06-17 | Cit Alcatel | Radio device for transmitting a radio signal via an antenna arrangement to a mobile station of a mobile radio system |
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2002
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2003
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Also Published As
| Publication number | Publication date |
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| DE10238796A1 (en) | 2004-03-04 |
| DE10238796B4 (en) | 2006-09-14 |
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