CN102239726A

CN102239726A - Method and apparatus for make-before-break handover in time division-synchronous code division multiple access (td-scdma) system

Info

Publication number: CN102239726A
Application number: CN2010800021173A
Authority: CN
Inventors: J·郭; 范明熙
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 2010-02-26
Filing date: 2010-08-26
Publication date: 2011-11-09
Anticipated expiration: 2030-08-26
Also published as: CN102239726B

Abstract

Provided in the present invention are a system and method for performing make-before-break handover from a source cell to a target cell in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system. According to various aspects of the present disclosure, a mobile station establishes a wireless link with the target cell while maintaining the call with the source cell. The communication between the mobile station and the respective source and target cells can be multiplexed utilizing time division multiplexing or frequency division multiplexing. When the time division multiplexing is utilized, the allocation between the respective source and target cells can be made slot-by-slot in a subframe, or subframe-by-subframe in a radio frame.

Description

The method and apparatus that is used for the make-before-break transfer of TD-SCDMA system

Background

The field

Aspects of the present disclosure relates generally to wireless communication system, relates in particular to the transfer in the cellular radio Communication system.

Background

Cordless communication network by widespread deployment to provide such as various communication services such as phone, video, data, information receiving, broadcasting.This type of network that is generally multi-access network is supported a plurality of user's communications by sharing available network resource.An example of this type of network is a universal terrestrial radio electricity Access Network (UTRAN).UTRAN is the radio access network (RAN) that is defined as the part of Universal Mobile Telecommunications System (UMTS), and UMTS is the third generation (3G) the mobile phone technology that third generation partnership projects (3GPP) is supported.Follow-up UMTS as global system for mobile communications (GSM) technology supports various air-interface standards at present, such as Wideband Code Division Multiple Access (WCDMA) (W-CDMA), TD-CDMA Time Division-Code Division Multiple Access (TD-CDMA) and Time Division-Synchronous Code Division Multiple Access (TD-SCDMA).For example, China just carrying out TD-SCDMA as with its existing GSM infrastructure as the bottom air interface in the UTRAN framework of core net.UMTS also supports the enhancement mode 3G data communication protocol such as high speed downlink packet access (HSDPA), and it provides higher data transmission bauds and capacity to the UMTS network that is associated.

Along with the demand sustainable growth that mobile broadband is inserted, research and development continues to advance the UMTS technology so that not only satisfy the demand of the growth that mobile broadband is inserted, and improves and strengthen the experience of user to mobile communication.

General introduction

A kind of system and method makes and can carry out transferring to the make-before-break of target cell sub-district from source honeycomb district in the TD-SCDMA system.According to various aspects of the present disclosure, in the calling of keeping with source honeycomb district, set up Radio Link with the target cell sub-district.Mobile radio station respectively with the source and target cellular cell between communicate by letter and can utilize time division multiplexing or frequency division multiplexing to carry out multiplexing.When utilizing time division multiplexing, can between source and target cell sub-district, make respectively in the subframe by in the distribution of time slot or the radio frame by the distribution of subframe.

In one side of the present disclosure, the method for wireless communication in a kind of TD-SCDMA system comprises: decision will be carried out from the transfer of source honeycomb district to the target cell sub-district; In the calling of keeping with source honeycomb district, set up link with the target cell sub-district; After the link with the target cell sub-district builds up, stop corresponding to the link of the calling of source honeycomb district; And utilize the link that is built up to continue this calling with the target cell sub-district.

In another aspect of the present disclosure, the method for wireless communication in a kind of TD-SCDMA network comprises: decision will be carried out from the transfer of source honeycomb district to the target cell sub-district; Provide target cell cell handoff configuration messages to the target cell sub-district; Provide source honeycomb district to transfer configuration messages to source honeycomb district; Provide the transfer order to mobile user equipment; And reception is finished message from the transfer of mobile user equipment when transfer is finished.

In another aspect of the present disclosure, the equipment of the radio communication of a kind of TD-SCDMA of being used for system comprises: be used to determine to carry out from the device of source honeycomb district to the transfer of target cell sub-district; Be used in the calling of keeping with source honeycomb district, setting up device with the link of target cell sub-district; Be used for after the link with the target cell sub-district builds up stopping corresponding to the device of the link of the calling of source honeycomb district; And be used to utilize the link that is built up to continue the device of this calling with the target cell sub-district.

Of the present disclosure another aspect, a kind of computer program that uses in the TD-SCDMA system comprises computer-readable medium, and this computer-readable medium has the code that is used for following action: decision will be carried out from the transfer of source honeycomb district to the target cell sub-district; In the calling of keeping with source honeycomb district, set up link with the target cell sub-district; After the link with the target cell sub-district builds up, stop corresponding to the link of the calling of source honeycomb district; And utilize the link that is built up to continue this calling with the target cell sub-district.

In another aspect of the present disclosure, a kind of device that is used for radio communication comprises at least one processor and the memory that is coupled to this at least one processor.At this, this at least one processor is configured to: decision will be carried out from the transfer of source honeycomb district to the target cell sub-district; In the calling of keeping with source honeycomb district, set up link with the target cell sub-district; After the link with the target cell sub-district builds up, stop corresponding to the link of the calling of source honeycomb district; And utilize the link that is built up to continue this calling with the target cell sub-district.

These and other aspect will more fully be understood when consulting the disclosure.

The accompanying drawing summary

Fig. 1 is the block diagram that explains orally the example of telecommunication system conceptually.

Fig. 2 is the block diagram that explains orally the example of the frame structure in the telecommunication system conceptually.

Fig. 3 explains orally the block diagram that B node and UE in the telecommunication system are in the example of communicating by letter conceptually.

Fig. 4 explains orally conceptually according to the relay of prior art and transfers.

Fig. 5 explains orally the call flow diagram of transferring according to the relay of prior art conceptually.

Fig. 6 explains orally the call flow diagram that make-before-break is on the one hand transferred according to the disclosure conceptually.

Fig. 7 explains orally the flow chart of transferring according to the make-before-break of the rules that explain orally among Fig. 6 conceptually.

Fig. 8 explains orally conceptually according to the disclosure one side of utilizing timeslot-level time-multiplexed make-before-break to transfer on the one hand.

Fig. 9 explains orally according to the disclosure back offset that formerly connects on the one hand to hand over the flow chart that changes the process of carrier frequency afterwards conceptually.

Figure 10 explains orally conceptually according to the disclosure one side of utilizing the time-multiplexed make-before-break of sub-frame level to transfer on the one hand.

Figure 11 explains orally the one side that the make-before-break that utilizes frequency division multiplexing is on the one hand transferred according to the disclosure conceptually.

Describe in detail

The detailed description of setting forth below in conjunction with accompanying drawing is intended to the description as various configurations, and is not intended to only configuration that expression can be put into practice notion described herein.This detailed description comprises that detail provides the thorough to each conception of species.Yet it will be apparent to those skilled in the art that does not have these details can put into practice these notions yet.In some instances, well-known structure and assembly are shown so that avoid falling into oblivion this genus with the block diagram form.

Forward Fig. 1 now to, show the block diagram of the example that explains orally telecommunication system 100.Each conception of species that provides in the whole text in the disclosure can be striden miscellaneous telecommunication system, the network architecture and communication standard and be realized.And non-limiting, the aspect of the present disclosure that explains orally among Fig. 1 is that the UMTS system of adopting by reference TD-SCDMA standard provides as example.In this example, the UMTS system comprises that (for example, UTRAN), it provides the various wireless services that comprise phone, video, data, information receiving, broadcasting and/or other services etc. to (radio access network) RAN 102.RAN 102 can be divided into several RNS such as radio network sub-system (RNS) 107, and each RNS is controlled by the RNC such as radio network controller (RNC) 106.For the sake of clarity, RNC 106 and RNS 107 only are shown; Yet except RNC106 and RNS 107, RAN 102 also can comprise any number RNC and RNS.RNC 106 is devices of especially being responsible for assigning, reshuffle and discharging the radio resource in the RNS 107.RNC 106 can interconnect to other RNC (not shown) among the RAN 102 by use any suitable transmission network such as direct physical connection, virtual network or suchlike various types of interface.

The geographic area that is covered by RNS 107 can be divided into several cellular cells, and wherein radio transceiver device is served each cellular cell.Radio transceiver device is commonly called the B node in UMTS uses, but also can be called base station (BS), basic transceiver station (BTS), radio base station, wireless set, transceiver function, Basic Service Set (BSS), extended service set (ESS), access point (AP) or other certain suitable terms by those skilled in the art.For the sake of clarity, show two B nodes 108; Yet RNS 107 can comprise any number wireless B node.B node 108 provides WAP (wireless access point) to core net 104 for any number mobile device.The example of mobile device comprises cell phone, smart phone, Session Initiation Protocol phone, laptop devices, notebook, net book, intelligence basis, PDA(Personal Digital Assistant), satelline radio, global positioning system (GPS) equipment, multimedia equipment, video equipment, digital audio-frequency player (for example, MP3 player), camera, game console or any other similar function device.Mobile device is commonly called subscriber's installation (UE) in UMTS uses, but also can be called mobile radio station (MS), subscriber station, mobile unit, subscriber unit, radio-cell, remote unit, mobile device, wireless device, Wireless Telecom Equipment, remote equipment, mobile subscriber station, access terminal (AT), portable terminal, wireless terminal, remote terminal, hand-held set, terminal, user agent, mobile client, client or other certain suitable terms by those skilled in the art.For explaining orally purpose, three UE 110 are shown are in B node 108 and communicate by letter.The down link (DL) that also is called as forward link is meant the communication link from the B node to UE, and the up link (UL) that also is called as reverse link is meant from the communication link of UE to B node.

As shown in the figure, core net 104 comprises the GSM core net.Yet as the skilled person will recognize, each conception of species that provides in the whole text in the disclosure can realize in RAN or other suitable Access Networks, so that the access to the core net of the other types except that the GSM network to be provided to UE.

In this example, core net 104 usefulness mobile switching centres (MSC) 112 and gateway MSC (GMSC) 114 come the support circuit-switched service.One or more RNC such as RNC 106 can be connected to MSC 112.MSC 112 is devices that route and UE mobility functions were set up, called out to controlling call.MSC 112 also comprises Visitor Location Register (VLR) (not shown), the information relevant with the subscriber during it comprises UE and is in the area of coverage of MSC 112.GMSC 114 provides the gateway through MSC 112, for UE place in circuit switching network 116.GMSC 114 comprises attaching position register (HLR) (not shown), and HLR comprises the subscriber data such as the data of the details that reflect the service that the specific user has subscribed to.HLR also is associated with the authentication center (AuC) that comprises because of the different verify data of subscriber.When the calling that receives at particular UE, GMSC 114 inquiry HLR are with the position of determining this UE and the specific MSC that this call forward is given this position of service.

Core net 104 also uses Serving GPRS Support Node (SGSN) 118 and Gateway GPRS Support Node (GGSN) 120 to support packet data service.Represent the GPRS of General Packet Radio Service to be designed to provide packet data service than the available higher speed of speed of standard GSM circuit switched data service.GGSN 120 provides connection to packet-based network 122 for RAN 102.Packet-based network 122 can be internet, proprietary data net or other certain suitable packet-based network.The major function of GGSN 120 is to provide packet-based network connectivty to UE 110.Packet is transmitted between GGSN 120 and UE 110 by SGSN 118, and the function that this SGSN 118 carries out in packet-based territory and MSC 112 carries out in circuit commutative field is identical functions fundamentally.

The UMTS air interface is spread spectrum direct sequence CDMA (DS-CDMA) system.Spread spectrum DS-CDMA expands to user data on the much wide bandwidth by multiply by the sequence with the pseudo-random bits that is called chip.The TD-SCDMA standard is based on this type of direct sequence spread spectrum skill, and requires time division duplex (TDD) in addition, but not as in the UMTS/W-CDMA of numerous fdd modes system used Frequency Division Duplexing (FDD) (FDD).Both use identical carrier frequency to TDD to the up link (UL) between B node 108 and the UE 110 and down link (DL), but up link and downlink transmission are divided in the different time-gap of carrier wave.

Fig. 2 shows the frame structure 200 of TD-SCDMA carrier wave.As explain orally, the TD-SCDMA carrier wave has the frame 202 that length is 10ms.Frame 202 has the subframe 204 of two 5ms, and each subframe 204 comprises that seven time slot TS0 are to TS6.The first time slot TS0 usually is allocated for downlink communication, and the second time slot TS1 usually is allocated for uplink communication.All the other time slot TS2 maybe can be used to up link to TS6 maybe can be used to down link, this permission or upwards at the time durations that the higher data transmission is arranged greater flexibility is arranged at uplink direction or at downlink side.Down link pilot timeslot (DwPTS) 206, protection period (GP) 208 and uplink pilot time slot (UpPTS) 210 (being also referred to as uplink pilot channel (UpPCH)) are between TS0 and TS1.Each time slot TS0-TS6 can allow multiplexing transfer of data on maximum 16 code channels.Transfer of data on the code channel comprises by midamble 214 separated two data parts 212 and continues with the protection period (GP) 216.Midamble 214 can be used to the feature such as channel estimating, and GP 216 can be used to avoid disturbing between paroxysm.

Fig. 3 is that B node 310 is in the block diagram of communicating by letter with UE 350 among the RAN 300, and wherein RAN 300 can be the RAN 102 of Fig. 1, and B node 310 can be the B node 108 among Fig. 1, and UE 350 can be the UE 110 among Fig. 1.In downlink communication, emission processor 320 can receive from the data of data source 312 and the control signal of coming self-controller/processor 340.Emission processor 320 is that data and control signal and reference signal (for example, pilot signal) provide various signal processing functions.For example, emission processor 320 can be provided for error detection the Cyclic Redundancy Check sign indicating number, facilitate the coding of forward error correction (FEC) and the expansion that interweaves, carry out to the mapping of signal constellation (in digital modulation), with orthogonal variable spreading factor (OVSF) based on various modulation schemes (for example, binary phase shift keying (BPSK), Quadrature Phase Shift Keying (QPSK), M phase shift keying (M-PSK), M quadrature amplitude modulation (M-QAM) and like that) and with scrambled code multiply by a series of code elements of generation mutually.But the channel estimating controlled device/processor 340 from channel processor 344 is used for determining coding, modulation, expansion and/or scrambling scheme into emission processor 320.Can be from the reference signal that transmits by UE 350 or the feedback that from midamble 214 (Fig. 2), comprises these channel estimating of deriving from UE 350.The code element that is generated by emission processor 320 is provided for frame emission processor 330 to create frame structure.Frame emission processor 330 by with code element with come that the midamble 214 (Fig. 2) of self-controller/processor 340 is multiplexing creates this frame structure, thereby obtain series of frames.These frames are provided for transmitter 332 subsequently, and this transmitter provides various signal condition functions, comprise to these frames amplify, filtering and it is modulated on the carrier wave so that carry out downlink transmission by smart antenna 334 on wireless medium.Smart antenna 334 available beams turn to bidirectional self-adaptive aerial array or other similar beam techniques to realize.

At UE 350 places, receiver 354 transmits by antenna 352 receiving downlinks, and handles this transmission to recover to be modulated to the information on the carrier wave.The information that is recovered by receiver 354 is provided for received frame processor 360, and this received frame processor is resolved each frame, and midamble 214 (Fig. 2) is offered channel processor 394 and data, control and reference signal are offered receiving processor 370.Receiving processor 370 is carried out subsequently by 320 performed the contrary of processing of the emission processor in the B node 310 and is handled.More specifically, receiving processor 370 descramblings and these code elements of de-spread, and determine the signal constellation point that B node 310 has most possibly been launched based on modulation scheme subsequently.These soft-decisions can be based on the channel estimating that is calculated by channel processor 394.The decoded subsequently and deinterleaving of soft-decision is with restore data, control and reference signal.Check (CRC) codes is to determine whether these frames are successfully decoded subsequently.Successfully the entrained data of Xie Ma frame will be provided for data trap 372 subsequently, the application of its representative operation in UE 350 and/or various user interface (for example, display).Successfully the entrained control signal of Xie Ma frame will be provided for controller/processor 390.When receiver processor 370 decoded frames were unsuccessful, controller/processor 390 also can use true receipts (ACK) and/or negate really to receive (NACK) agreement to support repeat requests to these frames.

In up link, from the data of data source 378 with come the control signal of self-controller/processor 390 to be provided for emission processor 380.Data source 378 can be represented the application of operation in UE 350 and various user interface (for example, keyboard).Be similar to the down link of being done in conjunction with B node 310 and transmit describe functional, emission processor 380 provides various signal processing functions, comprise the CRC sign indicating number, in order to the coding of facilitating FEC and the expansion that interweaves, carries out and scrambling to the mapping of signal constellation (in digital modulation), with OVSF to produce a series of code elements.The channel estimating that reference signal that is transmitted from B node 310 by channel processor 394 or the feedback that comprises from the midamble that is transmitted by B node 310 are derived can be used to select just suitable coding, modulation, expansion and/or scrambling scheme.The code element that is produced by emission processor 380 will be provided for frame emission processor 382 to create frame structure.Frame emission processor 382 by with code element with come that the midamble 214 (Fig. 2) of self-controller/processor 390 is multiplexing creates this frame structure, thereby obtain series of frames.These frames are provided for transmitter 356 subsequently, and this transmitter provides various signal condition functions, comprise to these frames amplify, filtering and it is modulated on the carrier wave so that carry out ul transmissions by antenna 352 on wireless medium.

Sentence with the similar mode of the described mode of receiver function that combines UE 350 places at B node 310 and to handle ul transmissions.Receiver 335 transmits by antenna 334 receiving uplinks, and handles this transmission to recover to be modulated to the information on the carrier wave.The information that is recovered by receiver 335 is provided for received frame processor 336, and this received frame processor is resolved each frame, and midamble 214 (Fig. 2) is offered channel processor 344 and data, control and reference signal are offered receiving processor 338.Receiving processor 338 is carried out by 380 performed the contrary of processing of the emission processor among the UE 350 and is handled.Successfully entrained data and the control signal of Xie Ma frame can be offered data trap 339 and controller/processor respectively subsequently.If receiving processor decoding some of them frame is unsuccessful, then controller/processor 340 also can use true receipts (ACK) and/or negate really to receive (NACK) agreement to support repeat requests to these frames.

Controller/

processor

340 and 390 can be used to instruct respectively the operation at B node 310 and UE 350 places.For example, controller/

processor

340 and 390 can provide various functions, base, peripheral interface, voltage-regulation, power management and other controlled function when comprising.

Memory

342 and 392 computer-readable medium can be stored data and the software for B node 310 and UE 350 usefulness respectively.Scheduler/the processor 346 at B node 310 places can be used to the Resources allocation to UE, and is UE schedule downlink and/or ul transmissions.

In a kind of configuration, the equipment 350 that is used for the radio communication of TD-SCDMA system comprises: be used to determine to carry out from the device of source honeycomb district to the transfer of target cell sub-district; Be used in the calling of keeping with source honeycomb district, setting up device with the link of target cell sub-district; Be used for after the link with the target cell sub-district builds up stopping corresponding to the device of the link of the calling of source honeycomb district; And be used to utilize the link that is built up to continue the device of this calling with the target cell sub-district.In one aspect, aforementioned means can be the processor 370,380 and/or 390 that is configured to carry out by the function of aforementioned means narration.On the other hand, aforementioned means can be module or any equipment that is configured to carry out by the function of aforementioned means narration.

In further disposing, equipment 350 also comprises: be used for will being redirected to the device of the 3rd carrier wave that is different from first carrier with the up link of target cell sub-district after transfer is finished; And be used for after transfer is finished, will being redirected to the device of the 4th carrier wave that is different from second carrier wave with the down link of target cell sub-district.In one aspect, aforementioned means can be the processor 370,380 and/or 390 that is configured to carry out by the function of aforementioned means narration.On the other hand, aforementioned means can be module or any equipment that is configured to carry out by the function of aforementioned means narration.

With other the commercial cdma systems of the soft transfer of support such as cdma2000 and W-CDMA form contrast be, current TD-SCDMA system only can utilize hard transfer and relay to transfer, and these two kinds of transfers all are to have no progeny earlier to connect transfer.That is,, just carry out connection then with the 2nd B node (that is target B node) with the connection disconnection earlier of a B node (that is, source B node).

When utilizing hard the transfer, UE at first disconnect corresponding to the up link of original source B node and the radio link of both downlink, and subsequently with the up link of target B node and both downlink on just obtain the service of voice-and-data traffic after setting up reliable radio link.When utilizing relay to transfer,, at first up link 402 is switched to target B node 420 from source B node 410 as explaining orally among Fig. 4.At this, up link 402 can be used for transmitting special burst (SB) to target B node 420, and this SB can be regarded as for a kind of training sequence of target B node 420 detections from the up link 402 of UE 430.After the suitable downlink/uplink switching delay phase, switch to target B node 420 from source B node 410 with being about to down link 404.

Fig. 5 be explain orally with prior art in the call flow diagram of the relevant more details of relay transfer of having no progeny earlier that realize.Separate at this and to be right, this process starts from RNC 508 and provides to UE 502 and measure control messages 510.At this, measure control messages 510 and can comprise some information of just asking the measurement that UE 502 carries out (measurement such as between frequency or in the frequency, RAT measurements, such as error rate mass measurement, UE internal measurement etc.) about RNC 508.After carrying out the measurement asked, UE 502 usefulness measurement report message 512 respond RNC 508, and this measurement report message 512 generally comprises about by the information of UE 502 in response to the performed measurement of measurement control messages 510.This measurement control-measurement-measurement report sequence can periodically repeat or repeat when the measurement event of being asked is triggered.

At this, after receiving measurement report message 512, the target B node 506 that RNC 508 decisions are used to transfer, and carry out the traffic carrying with selected target B node 506 and set up signaling 514.Next, RNC 508 provides the transfer that comprises traffic channel configuration information 516 order to UE 502.At this, owing to just utilizing relay to transfer, therefore start from UE502 to the transfer of target B node 506 and switch up link earlier and switch down link then from source B node 504.That is, after the up link switching point, UE 502 transmits special burst (SB) 518 and/or data to selected target B node 506 on up link.At this, SB 518 is the training sequences that are used for carrying out at target B node 506 places traffic channel foundation.

Before the down link switching point, UE 502 keeps the down link from source B node 504, and promptly it continues to receive the down link data 520 from source B node 504.Yet after the down link switching point at about 80ms place, down link is switched to target B node 506 after generally being in the up link switching point.In the foundation that detects down link and after message 524 is finished in RNC 508 transmission transfers, this transfer is finished.Therefore, RNC 508 sends traffic carrying release message 526 to source B node 504.

The known problem transferred of relay is as described above, and between transfer period, promptly when up link and down link are in different base station (referring to Fig. 4 (B is capable)), both all are in the open-loop transmission pattern up link 402 and down link 404.That is, the feedback information such as TPC and SS order does not generally provide in uplink/downlink transmission 402, and therefore power and Synchronization Control may suffer damage.Open-loop transmission may cause power efficiency low, for example the interference in the up link and owing to lacking the packet loss that channel condition fluctuation or the self adaptation that changes are caused.

In addition since in the existing standard to the requirement of the uplink signalling channel that is associated, relay is transferred and generally is not suitable for the HSPA traffic as described above.

Therefore, in one side of the present disclosure, the transfer rules are modified to reaches make-before-break transfer user experience in the TD-SCDMA system.At this, can keep with source B node voice/data communication in set up reliable radio link with target B node.In case this reliable radio link obtains confirming that voice/data communications can be switched the node to target B subsequently.

Fig. 6 explains orally the call flow diagram of transferring rules according to the make-before-break in the disclosure TD-SCDMA system on the one hand.According to the substantially the same mode of describing with reference Fig. 5 of process, UE and RNC carry out and measure control-measurement-measurement report sequence, thereby cause definite should the transfer.After the target B node 606 that RNC 608 decisions are used to transfer, RNC 608 can carry out the traffic carrying with selected target B node 606 and set up signaling 612.Yet, as discussed in more detail below, be different from the traffic carrying that explains orally among Fig. 5 and set up signaling 514, signaling 612 is set up in the traffic carrying can comprise the transfer configuration messages that is used for notifying to target B node 606 some configuration parameter that will utilize between this make-before-break handover period.RNC608 can further provide to source B node 604 and transfer configuration messages 614, with some configuration parameter that will utilize between this handover period to source B node 604 notices, as described in more detail below.

Next, RNC 608 can provide the transfer order 616 that comprises the traffic channel reconfiguration information to UE 602, and in response, UE 602 can determine to carry out transfer, and therefore can start from the transfer of source B node 604 to target B node 606., transfer rules herein, so UE 602 keeps all with the traffic of source B node 604 on up link and both downlink and is connected because this process can be characterized by make-before-break.For example, UE 602 can keep the calling 620 with source B node 604, wherein calls out in this article to refer to any traffic connection, for example by air interface and network ongoing voice and/or the transfer of data/reception of utilization with source B node 604.Meanwhile, UE 602 can set up link 618 with target B node 606, for example by sending special burst (SB) on this up link and receive SB and expense on from the down link of target B node 606.(TA) and power were controlled (PC) message to base in advance when in addition, the downlink signaling of going to UE 602 from target B node 606 can comprise.In this way, UE 602 can come active arrangement to go to the characteristic of the ul transmissions of target B node 606 in response to the feedback that provides on the down link from target B node 606, to set up the radio link 618 with target B node 606 suitably.

When UE 602 pleases oneself for the downlinlc message from target B node 606 of oneself can decoding reliably, can determine to finish transfer to target B node 606, in this case, UE 602 can notify RNC 608 by utilizing transfer to finish message 622.After this, RNC 608 can provide traffic carrying release message 624 to source B node 604, and UE 602 can stop the communication link of itself and source B node 604.Therefore, UE 602 can with the corresponding up link of target B node 606 and down link on continue its calling.

Fig. 7 is the flow chart of some aspects of the process that explained orally in the call flow diagram of key diagram 6.In certain embodiments, this process is carried out by Circuits System or network processing unit.In certain embodiments, this process is carried out by the various assemblies of the telecommunication system 100 that explains orally among Fig. 1.In certain embodiments, the each several part of this process is carried out by the UE 350 of Fig. 3.

In frame 702, the decision of this process will be carried out UE from the transfer to target cell sub-district and corresponding B node thereof of source honeycomb district and corresponding B node thereof.Aspect more of the present disclosure, the above-mentioned decision that will carry out transfer can be realized in response to measuring control-measurement-measurement report sequence as described above by radio network controller (RNC).The measurement that after this this process is carried out according to UE in frame 704 decides target cell sub-district and corresponding target B node thereof.

In frame 706, this process provides the transfer configuration messages to target B node.Aspect more of the present disclosure, transferring configuration messages can be provided by the part that RNC sets up signaling as traffic carrying that send and target B node in the backhaul connection.Aspect more of the present disclosure, the transfer configuration messages that offers target B node can comprise and be used for making and can carry out the resource allocation information that make-before-break is transferred to target B node, such as assign for the time slot timeslot-level TDM (time division multiplexing) for, for the subframe for the sub-frame level TDM assign, Channel Assignment for FDM (frequency division multiplexing) and may being suitable for specific call from any other restriction or the rule of source B node to the transfer of target B node.

In frame 708, this process provides the transfer configuration messages to source B node.Aspect more of the present disclosure, the transfer configuration messages that offers source B node can be sent on backhaul connects by RNC and provide.Aspect more of the present disclosure, the transfer configuration messages that offers source B node can comprise and be used for making and can carry out the resource allocation information that make-before-break is transferred from source B node, such as any other restriction or the rule of assigning for the time slot for the timeslot-level TDM, subframe for sub-frame level TDM is assigned, Channel Assignment for FDM and may being suitable for is transferred from source B node specific call to target B node.

In frame 710, this process provides the traffic channel reconfiguration message to UE.Aspect more of the present disclosure, the traffic channel reconfiguration message can offer UE by utilizing more high-rise connection by RNC.Aspect more of the present disclosure, the traffic channel reconfiguration message can be accompanied by instruction UE execution and provide together to the UE of the transfer of target B node transfer order from source B node.Aspect more of the present disclosure, the traffic channel reconfiguration message can provide to UE and be used to make it possible to carry out the resource allocation that make-before-break is transferred between source B node and the target B node, such as any other restriction or the rule of assigning for the time slot for the timeslot-level TDM, subframe for sub-frame level TDM is assigned, Channel Assignment for FDM and may being suitable for is transferred from source B node specific call to target B node.

In frame 712, this process can be set up the link with target B node in the calling of keeping with source B node.Aspect more of the present disclosure, set up this link and comprise that closed-loop communication between UE and the target B node, this closed-loop communication comprise that feedback is so that up link and down link can be dynamically adjusted.For example, UE can provide special burst (SB) and can receive SB and expense on from the down link of target B node on this up link.In addition, base (TA) and power control (PC) message in advance when the downlink signaling of going to UE from target B node can comprise is so that time base and the power of the adaptive ul transmissions of UE energy.It will be understood by those skilled in the art that and between UE and B node, to utilize other signalings to set up this link.Aspect more of the present disclosure, it is multiplexing to utilize timeslot-level time division multiplexing, sub-frame level time division multiplexing or frequency division multiplexing that the link establishment of above-mentioned and target B node and the calling of just keeping with source B node are carried out, as described in more detail below.

In frame 714, this process provides to transfer to RNC from UE finishes message.Aspect more of the present disclosure, transfer is finished message and can is suitable for making calling being maintained after source B node switches to target B node to the link of network notice and target B node.After this, in frame 716, this process will be called out the link that switches to target B node and termination and source B node from source B node.

According to various aspects of the present disclosure, above-mentionedly in the link of setting up with target B node, keep with the calling of source B node and can reach by utilizing any strategy in some Different Strategies described below.In each strategy in strategy described below, utilize various multiplexing schemes to make the ul transmissions from UE be provided for source B node and target B node, and utilize various multiple access schemes to make respectively the downlink transmission from source and target B node be provided for UE.For ease of describing, multiplexing and multiple access strategy is collectively referred to as multiplexing.

Timeslot-level TDM

According to one side of the present disclosure, go to during the offset friendship after formerly connecing in the TD-SCDMA system/can utilize timeslot-level time division multiplexing to distribute from the signaling of source and target B node.That is, the different time-gap (TS) in the same sub 204 of radio frame 202 (referring to Fig. 2) can be assigned to source B node or target B node respectively.For example, explain orally as (B is capable) among Fig. 8, time slot TS1 can be assigned to the ul transmissions of going to source B node 802; Time slot TS2 can be assigned to the ul transmissions of going to target B node 804; Time slot TS4 can be assigned to the downlink transmission from source B node 802; And time slot TS5 can be assigned to the downlink transmission from target B node 804.Certainly, it will be appreciated by those skilled in the art that, can utilize respectively any suitable time slot allocation of source and target B node and can not break away from the scope of the present disclosure, comprise respectively to the up link of going to any B node and/or a plurality of time slots of downlink allocation, and/or save in these uplink/downlinks transmission one or more.

Get back to Fig. 6, RNC 608 can hold consultation with target B node 606 will be by the channel resource of UE 602 and 606 utilizations of target B node during transferring rules to establish.In one example, can during setting up signaling 612, the traffic carrying finish with this negotiation of target B node 606.Similarly, channel resource allocation can convey to source B node 604 in transferring configuration messages 614.In addition, the channel resource allocation between source B node 604 and the target B node 606 can be used as traffic channel reconfiguration message 616 and is communicated to UE602.For example, if UE 602 is transferring one or more dedicated channel (DCH), then the DCH channel time slot at target B node 606 places assigns the DCH channel time slot that should be different from B node 604 places, source to assign.In addition, if UE 602 is transferring one or more HS channel, then RNC 608 can use the time slot that provides HS to serve to UE 602 from each B node for coordinating the purpose restriction.In transfer is can use further resource assignment rule when utilizing according in this respect timeslot-level TDM of the present disclosure, to take into account the detail during setting up signaling 612 with the traffic carrying of target B node 606 and going to the transfer reconfiguration message 614 of source B node 604.For example, if just utilize HSPA to transmit data, then generally do not allow these data to cross over the interior a plurality of time slots of subframe, because other time slots should be assigned to the transmission of going to other B nodes.

In addition, can be observed, as explaining orally among Fig. 8, ul transmissions can (for example switch to target B node from source B node in adjoining time slot, as explain orally, the ul transmissions of going to source B node 802 from TS1 switches to the ul transmissions of going to target B node 804 among the TS2 that is adjacent to TS1).In this at least situation,, go to the ul transmissions of source and target B node and during transferring rules, can utilize identical carrier frequency according to another aspect of the present disclosure.That is, switching the RF frequency between different carrier will take time, for example at least 300 μ s.At this, when utilizing timeslot-level TDM, time slot has the time span that is generally with the identical magnitude of RF frequency switching time separately, keeps the useful time that is available for transmitting when this makes and is difficult to switch between carrier frequency in time slot.Similarly, downlink transmission may be respectively from source and target B node in adjoining time slot.At this, for receiving downlink on different carrier frequencies transmission, may require UE 806 with its receiver change into be tuned to this different carrier, this equally from each time slot available finite time amount consumed the time.Therefore, according to another aspect of the present disclosure, during transferring rules, should utilize identical carrier frequency from the downlink transmission of source and target B node.

Utilizing timeslot-level TDM to carry out from the source B node 802 that utilizes the first carrier frequency in hope changes the situation of hand rules to the make-before-break of target B node 804 that utilization is different from second carrier frequency of first frequency, can realize following rules according to one side of the present disclosure.That is, during utilizing the transfer stage of timeslot-level TDM, UE 806 can utilize with the identical carrier wave that is utilized by source B node 802 and set up and the closed-loop communication of target B node 804 (that is, up link transmits and the down link reception).That is, target B node 804 can utilize and transfer the different carrier wave of carrier frequency that is intended to go to.To the changing after hand finishes of target B node 804, target B node 804 can be redirected to UE 806 and utilize second carrier wave, utilize simultaneously with after the link that builds up with target B node 804 on the first carrier frequency employed identical TA.At this, because System Frame Number (SFN) is identical with the configuration of acquiescence DPCH side-play amount (DOFF) on target B node 804 place's different carriers, expection does not have speech frame to wipe during channel is reshuffled.

Fig. 9 be explain orally according to the disclosure on the one hand utilize timeslot-level TDM the time frequency between the flow chart of hand-over.In certain embodiments, this process is carried out by Circuits System or network processing unit.In certain embodiments, this process is carried out by the various assemblies of the telecommunication system 100 that explains orally among Fig. 1.In certain embodiments, the each several part of this process is carried out by the UE 350 of Fig. 3.

In frame 902, this process is by utilizing first carrier and utilizing second carrier wave to make calling to a B node (being source B node herein) to down link to up link.At this, carrier wave can refer to the characteristic frequency that is used for broadband or narrowband wireless communication link or suitable frequency range.At this, first carrier can be frequency identical with second carrier wave or different frequencies.Use in the situation of same frequency or frequency range at first and second carrier waves, can utilize time division duplex.Aspect more of the present disclosure, UE can make this calling with source B node.

In frame 904, this process is initiated to transfer.Aspect more of the present disclosure, radio network controller (RNC) can provide instruction to initiate from the transfer of source B node to target B node to UE.In frame 906, this process is set up the link between UE and the target B node.At this, can utilize first carrier to the up link of going to target B node with the link of target B node, and the down link from target B node is utilized second carrier wave.Aspect more of the present disclosure, first carrier can be frequency or the frequency range identical with second carrier wave; Aspect other, first carrier can be frequency or the frequency range different with second carrier wave of the present disclosure.

In frame 908, this process is finished from the transfer rules of source B node to target B node, and the link of termination and source B node.At frame 910, this process is redirected to the 3rd carrier wave that is different from first carrier with the up link between UE and the target B node from first carrier; And in frame 912, this process is redirected to the 4th carrier wave that is different from second carrier wave with the down link between UE and the target B node from second carrier wave.Aspect more of the present disclosure, the 3rd carrier wave can be frequency or the frequency range identical with the 4th carrier wave; Aspect other, the 3rd carrier wave can be frequency or the frequency range different with the 4th carrier wave of the present disclosure.Use in the situation of same frequency or frequency range at third and fourth carrier wave, can utilize time division duplex.

Sub-frame level TDM

According to one side of the present disclosure,, go to during the offset friendship after formerly connecing in the TD-SCDMA system/can utilize the time division multiplexing of sub-frame level to distribute from the signaling of source and target B node as (B is capable) that explains orally among Figure 10.That is, the different subframes 204 of same radio frame 202 (referring to Fig. 2) can be distributed to source B node or target B node respectively.For example, as (B is capable) that explains orally among Figure 10, subframe 1 is assigned to and goes to/from the up link and the downlink transmission of source B node 1002, and subframe 2 be assigned to go to/from the up link and the downlink transmission of target B node 1004.Certainly, it will be understood by those skilled in the art that the subframe of radio frame can be taked opposite configuration, promptly subframe 1 is assigned to target B node 1004 and subframe 2 is assigned to source B node 1002.In addition, it will be appreciated by those skilled in the art that, sub-frame level TDM can assign with the subframe of replacing and realize, and this still within the scope of the present disclosure, and it for example is any separately suitable sub-frame allocation between per the 3rd subframe, per the 4th subframe or source and the target B node that the subframe of replacement is assigned.

According to this respect of the present disclosure, distribute the source and target B node that different subframes can be right respectively to utilize identical carrier wave to source and target B node respectively.Alternatively, be different from some examples of timeslot-level TDM described above, the general long enough of sub-frame time base is followed a subframe with appearance and is changed to the carrier frequency between next subframe.Therefore, distribute different subframes to utilize different carrier waves to source and target B node respectively to source and target B node respectively.

Get back to Fig. 6, when utilizing sub-frame level TDM, RNC 608 can set up transfer configuration messages that message 612 comprises with the traffic carrying and is assigned to its subframe to target B node 606 notices by utilizing; And RNC 608 can notify the subframe that is assigned to it to source B node 604 similarly in transferring configuration messages 614.In addition, the part that separately sub-frame allocation can be used as traffic channel reconfiguration message 616 between source and the target B node is communicated to UE 602.

During circuit-switched voice call, 4 coherent subframes of a general leap of speech frame.Therefore, changing hand for the make-before-break of audio call for the different B node sub-frame allocation in the same radio frame may not be optimal solution, because this may cause speech call quality degradation dissatisfactory.That is, change hand for audio call, sub-frame level TDM can provide on a sub-frame allocation basis that provides on the four sub-frame allocation bases but not explain orally in Figure 10.Those skilled in the art will recognize that, four sub-frame allocation bases may cause B node place, source audio call connect every the invalid cost of a speech frame.In packet switching HSPA calls out, introduce the data throughout loss that sub-frame level TDM may cause the UE side.

FDM

According to one side of the present disclosure, as (B is capable) that explains orally among Figure 11, go in the TD-SCDMA system/can utilize frequency division multiplexing (FDM) to distribute from the signaling that is used for the make-before-break transfer of source and target B node.Promptly, can utilize the first carrier frequency to provide to go to/from the up link and the down link of source B node 1102, and can utilize second carrier frequency that is different from the first carrier frequency to provide to go to/from the up link and the down link of target B node 1104.At this, UE 1106 can be configured to transmit on a plurality of carrier waves simultaneously and receive.In this way, setting up time durations with the radio link of target B node 1104 at UE 1106, UE 1106 can keep the calling with source B node 1102.In case build up the link with target B node 1104, UE 1106 can correspondingly switch to calling target B node 1104 subsequently and discharge link with source B node 1102.

Some aspects of telecommunication system have been provided with reference to the TD-SCDMA system., run through the various aspects that the disclosure describes and to expand to other telecommunication systems, the network architecture and communication standard comprehensible as those skilled in the art.As example, various aspects can expand to other UMTS systems, insert (HSDPA), High Speed Uplink Packet such as W-CDMA, high-speed downlink packet to insert (HSUPA), high-speed packet and insert+(HSPA+) and TD-CDMA.Various aspects also can expand to system and/or other the suitable systems that adopts Long Term Evolution (LTE) (under FDD, TDD or this two kinds of patterns), senior LTE (LTE-A) (under FDD, TDD or this two kinds of patterns), CDMA2000, evolution data optimization (EV-DO) Ultra-Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE802.20, ultra broadband (UWB), bluetooth.The telecommunication standard of the reality that is adopted, the network architecture and/or communication standard will depend on concrete application and add all overall design constraints in system.

In conjunction with various apparatus and method some processors have been described.These processors can use electronic hardware, computer software or its any combination to realize.This type of processor is embodied as hardware or software will depend on concrete application and add all overall design constraints in system.As example, any combination available microprocessors of the processor that presents in the disclosure, any part of processor or processor, microcontroller, digital signal processor (DSP), field programmable gate array (FPGA), programmable logic device (PLD), state machine, gate logic, discrete hardware circuit and be configured to carry out other suitable processing components that run through the various functions that the disclosure describes and realize.The functional available software of being carried out by microprocessor, microcontroller, DSP or other suitable platforms of any combination of the processor that presents in the disclosure, any part of processor or processor is realized.

But software should broadly be construed to the thread that means instruction, instruction set, code, code segment, program code, program, subprogram, software module, application, software application, software kit, routine, subroutine, object executive item, execution, rules, function etc., no matter its be with software, firmware, middleware, microcode, hardware description language, or other term to address all be like this.Software can reside on the computer-readable medium.As example, computer-readable medium can comprise memory, such as magnetic storage apparatus (for example, hard disk, floppy disk, magnetic stripe), CD (for example, compact disc (CD), digital versatile dish (DVD)), smart card, flash memory device (for example, memory card, memory stick, key-type driver), random-access memory (ram), read-only memory (ROM), programming ROM (PROM), erasable type PROM (EPROM), electric erasable type PROM (EEPROM), register or removable dish.Separate although in aspect running through various that the disclosure presents memory is shown with processor, memory can be in processor inside (for example, high-speed cache or register).

Computer-readable medium can be embodied in the computer program.As example, computer program can comprise the computer-readable medium in the encapsulating material.Those skilled in the art will recognize that how to depend on concrete application and add described functional that all overall design constraints in total system realize providing in the disclosure best in the whole text.

Should be appreciated that the explanation that the concrete order of each step or stratum are example process in the disclosed method.Based on design preference, should be appreciated that, again the concrete order or the stratum of each step in these methods of layout.Appended claim to a method presents the key element of various steps with sample order, and and do not mean that and be defined to concrete order or the stratum that is presented, unless special narration is arranged in this article.

Description before providing is in order to make any technical staff in this area all can put into practice various aspects described herein.The various moving of these aspects changed and will be understood by those skilled easily, and defined in this article generic principles can be applied to other aspects.Therefore, claim is not to be intended to be defined to shown each side herein, but should be awarded and the corresponding to four corner of the language of claim, wherein to the citation of the singulative of key element be not be intended to expression " having and only have " unless---especially so statement, and be intended to expression " one or more ".Unless statement especially in addition, otherwise term " some/certain " refer to one or more.The phrase of quoting from " at least one " in the list of items is meant and any combination of these projects comprises single member.As example, " at least one among a, b or the c " is intended to contain: a; B; C; A and b; A and c; B and c; And a, b and c.The element of the various aspects of describing in the whole text in the disclosure for those of ordinary skills current or from now on known to all structures on and the equivalents on the function clearly included in this by citation, and be intended to be contained by claims.In addition, any content disclosed herein all is not to be intended to contribution to give the public---and no matter whether such disclosing is narrated by explicitly in claims.Unless any key element of claim all is not taken in the explanation of getting off of the regulation of the 6th section of 35U.S.C. § 112---this key element be to use wording " be used for ... device " clearly narrate or in the claim to a method situation this key element be to use wording " be used for ... step " narrate.

Claims

1. the method for wireless communication in the TD-SCDMA system comprises:

Decision will be carried out from the transfer of source honeycomb district to the target cell sub-district;

In the calling of keeping with described source honeycomb district, set up link with described target cell sub-district;

After the link with described target cell sub-district builds up, stop corresponding to the link of the described calling of described source honeycomb district; And

Utilize the link that is built up to continue described calling with described target cell sub-district.

2. the method for claim 1 is characterized in that, the link of described foundation and described target cell sub-district comprises in response to the measurement utilization at least one characteristic of described link and feeds back the described characteristic of adjusting described link.

3. the method for claim 1, it is characterized in that, described keep and the calling of described source honeycomb district in set up and the link of described target cell sub-district is included in the time division multiplexing of the information of carrying out between described source honeycomb district and the described target cell sub-district.

4. method as claimed in claim 3 is characterized in that, described time division multiplexing of carrying out information comprises:

During first time slot of subframe, transmit the first information to described source honeycomb district;

During second time slot of described subframe, receive second information from described source honeycomb district;

During the 3rd time slot of described subframe, transmit the 3rd information to described target cell sub-district; And

During the 4th time slot of described subframe, receive the 4th information from described target cell sub-district.

5. method as claimed in claim 4 is characterized in that, the described transmission first information and described transmission the 3rd information are utilized first carrier separately, and wherein said reception second information and described reception the 4th information are utilized second carrier wave separately.

6. method as claimed in claim 5 is characterized in that, further comprises:

After finishing, described transfer will be redirected to the 3rd carrier wave that is different from described first carrier with the up link of described target cell sub-district; And

After finishing, described transfer will be redirected to the 4th carrier wave that is different from described second carrier wave with the down link of described target cell sub-district.

7. method as claimed in claim 6, it is characterized in that, described with described up link be redirected to the 3rd carrier wave and described with described down link be redirected to the 4th carrier wave comprise separately utilize with respectively to described first carrier and described second carrier wave utilize identical the time base (TA) and power are controlled (PC) information in advance.

8. method as claimed in claim 3 is characterized in that, described time division multiplexing of carrying out information comprises:

During first subframe of radio frame, transmit the first information to described source honeycomb district;

During described first subframe of radio frame, receive second information from described source honeycomb district;

Transmit the 3rd information to described target cell sub-district during in described radio frame, being different from second subframe of described first subframe; And

During described second subframe of described radio frame, receive the 4th information from described target cell sub-district.

9. the method for claim 1, it is characterized in that, described keep and the calling of described source honeycomb district in set up and the link of described target cell sub-district is included in the frequency division multiplexing of the information of carrying out between described source honeycomb district and the described target cell sub-district.

10. method as claimed in claim 9 is characterized in that, the described frequency division multiplexing that carries out information comprises:

Utilize first carrier to transmit the first information to described source honeycomb district;

Utilize second information of described first carrier reception from described source honeycomb district;

Second carrier wave that utilization is different from described first carrier transmits the 3rd information to described target cell sub-district; And

Utilize four information of described second carrier wave reception from described target cell sub-district.

11. the method for wireless communication in the TD-SCDMA network comprises:

Provide target cell cell handoff configuration messages to described target cell sub-district;

Provide source honeycomb district to transfer configuration messages to described source honeycomb district;

Provide the transfer order to mobile user equipment; And

When described transfer is finished, receive and finish message from the transfer of described mobile user equipment.

12. method as claimed in claim 11, it is characterized in that, described target cell cell handoff configuration messages is included in first time slot of communicating by letter that is used between the described handover period between described target cell sub-district and the described mobile user equipment and assigns, and wherein said source honeycomb district is transferred configuration messages and is included in second time slot of the communicating by letter appointment that is used between the described handover period between described source honeycomb district and the described mobile user equipment, wherein said first time slot is assigned corresponding to first time slot in the subframe, and described first time slot is different from second time slot of assigning corresponding to described second time slot in the described subframe.

13. method as claimed in claim 11, it is characterized in that, described target cell cell handoff configuration messages is included in first subframe of communicating by letter that is used between the described handover period between described target cell sub-district and the described mobile user equipment and assigns, and wherein said source honeycomb district is transferred configuration messages and is included in second subframe of the communicating by letter appointment that is used between the described handover period between described source honeycomb district and the described mobile user equipment, wherein said first subframe is assigned corresponding to first subframe in the radio frame, and described first subframe is different from second subframe of assigning corresponding to described second subframe in the described radio frame.

14. method as claimed in claim 11, it is characterized in that, described target cell cell handoff configuration messages is included in the first carrier of communicating by letter that is used between the described handover period between described target cell sub-district and the described mobile user equipment and assigns, and wherein said source honeycomb district is transferred configuration messages and is included in second assignment of carriers of communicating by letter that is used between the described handover period between described source honeycomb district and the described mobile user equipment, wherein said first carrier is assigned corresponding to the first carrier frequency, and described first carrier frequency is different from second carrier frequency of assigning corresponding to described second carrier frequency.

15. an equipment that is used for the radio communication of TD-SCDMA system comprises:

Be used to determine to carry out from the device of source honeycomb district to the transfer of target cell sub-district;

Be used in the calling of keeping with described source honeycomb district, setting up device with the link of described target cell sub-district;

Be used for after the link with described target cell sub-district builds up stopping corresponding to the device of the link of the described calling of described source honeycomb district; And

Be used to utilize the link that is built up to continue the device of described calling with described target cell sub-district.

16. equipment as claimed in claim 15, it is characterized in that the described device that is used to set up with the link of described target cell sub-district comprises the device that is used in response to the measurement utilization of at least one characteristic of described link being fed back the described characteristic of adjusting described link.

17. equipment as claimed in claim 15, it is characterized in that, described be used for keep and the calling of described source honeycomb district in set up and the device of the link of described target cell sub-district comprises the time-multiplexed device that is used for the information of carrying out between described source honeycomb district and described target cell sub-district.

18. equipment as claimed in claim 17 is characterized in that, the described time-multiplexed device that is used to the information of carrying out comprises:

Be used for during first time slot of subframe, transmitting the device of the first information to described source honeycomb district;

Be used for during second time slot of described subframe, receiving device from second information of described source honeycomb district;

The device that is used for the 3rd information that during the 3rd time slot of described subframe, transmits to described target cell sub-district; And

Be used for during the 4th time slot of described subframe, receiving device from the 4th information of described target cell sub-district.

19. equipment as claimed in claim 18, it is characterized in that, described device and the described device that is used to the 3rd information that transmits that is used to transmit the first information is configured to utilize first carrier separately, and wherein said device and the described device that is used to the 4th information that receives that is used to second information that receives is configured to utilize second carrier wave separately.

20. equipment as claimed in claim 19 is characterized in that, further comprises:

Be used for after described transfer is finished, will being redirected to the device of the 3rd carrier wave that is different from described first carrier with the up link of described target cell sub-district; And

Be used for after described transfer is finished, will being redirected to the device of the 4th carrier wave that is different from described second carrier wave with the down link of described target cell sub-district.

21. equipment as claimed in claim 20, it is characterized in that, described be used for described up link be redirected to the 3rd carrier wave device and described be used for the device that described down link is redirected to the 4th carrier wave comprise separately be used to utilize and respectively to described first carrier and described second carrier wave utilize identical the time base (TA) and power are controlled the device of (PC) information in advance.

22. equipment as claimed in claim 17 is characterized in that, the described time-multiplexed device that is used to the information of carrying out comprises:

Be used for during first subframe of radio frame, transmitting the device of the first information to described source honeycomb district;

Be used for during described first subframe of radio frame, receiving device from second information of described source honeycomb district;

The device that is used for the 3rd information that during described radio frame is different from second subframe of described first subframe, transmits to described target cell sub-district; And

Be used for during described second subframe of described radio frame, receiving device from the 4th information of described target cell sub-district.

23. equipment as claimed in claim 15, it is characterized in that, described be used for keep and the calling of described source honeycomb district in set up and the device of the link of described target cell sub-district comprises the device that is used for carrying out the frequency division multiplexing of information between described source honeycomb district and described target cell sub-district.

24. equipment as claimed in claim 23 is characterized in that, the described device that is used to the frequency division multiplexing of the information of carrying out comprises:

Be used to utilize first carrier to transmit the device of the first information to described source honeycomb district;

Be used to utilize the device of described first carrier reception from second information of described source honeycomb district;

Be used to utilize second carrier wave that is different from described first carrier to transmit the device of the 3rd information to described target cell sub-district; And

Be used to utilize the device of described second carrier wave reception from the 4th information of described target cell sub-district.

25. a computer program that uses in the TD-SCDMA system comprises:

Computer-readable medium comprises the code that is used to carry out following action:

26. computer program as claimed in claim 25, it is characterized in that the described code that is used to set up with the link of described target cell sub-district comprises the code that is used in response to the measurement utilization of at least one characteristic of described link being fed back the described characteristic of adjusting described link.

27. computer program as claimed in claim 25, it is characterized in that, described be used for keep and the calling of described source honeycomb district in set up and the code of the link of described target cell sub-district comprises the time-multiplexed code that is used for the information of carrying out between described source honeycomb district and described target cell sub-district.

28. computer program as claimed in claim 27 is characterized in that, the described time-multiplexed code that is used to the information of carrying out comprises:

Be used for during first time slot of subframe, transmitting the code of the first information to described source honeycomb district;

Be used for during second time slot of described subframe, receiving code from second information of described source honeycomb district;

The code that is used for the 3rd information that during the 3rd time slot of described subframe, transmits to described target cell sub-district; And

Be used for during the 4th time slot of described subframe, receiving code from the 4th information of described target cell sub-district.

29. computer program as claimed in claim 28, it is characterized in that, described code and the described code that is used to the 3rd information that transmits that is used to transmit the first information is configured to utilize first carrier separately, and wherein said code and the described code that is used to the 4th information that receives that is used to second information that receives is configured to utilize second carrier wave separately.

30. computer program as claimed in claim 29 is characterized in that, described computer-readable medium further comprises:

Be used for after described transfer is finished, will being redirected to the code of the 3rd carrier wave that is different from described first carrier with the up link of described target cell sub-district; And

Be used for after described transfer is finished, will being redirected to the code of the 4th carrier wave that is different from described second carrier wave with the down link of described target cell sub-district.

31. computer program as claimed in claim 30, it is characterized in that, described be used for described up link be redirected to the 3rd carrier wave code and described be used for the code that described down link is redirected to the 4th carrier wave be configured to separately to utilize with respectively to described first carrier and described second carrier wave utilize identical the time base (TA) and power are controlled (PC) information in advance.

32. computer program as claimed in claim 27 is characterized in that, the described time-multiplexed code that is used to the information of carrying out comprises:

Be used for during first subframe of radio frame, transmitting the code of the first information to described source honeycomb district;

Be used for during described first subframe of radio frame, receiving code from second information of described source honeycomb district;

The code that is used for the 3rd information that during described radio frame is different from second subframe of described first subframe, transmits to described target cell sub-district; And

Be used for during described second subframe of described radio frame, receiving code from the 4th information of described target cell sub-district.

33. computer program as claimed in claim 25, it is characterized in that, described be used for keep and the calling of described source honeycomb district in set up and the code of the link of described target cell sub-district comprises the code that is used for carrying out the frequency division multiplexing of information between described source honeycomb district and described target cell sub-district.

34. computer program as claimed in claim 33 is characterized in that, the described code that is used to the frequency division multiplexing of the information of carrying out comprises:

Be used to utilize first carrier to transmit the code of the first information to described source honeycomb district;

Be used to utilize the code of described first carrier reception from second information of described source honeycomb district;

Be used to utilize second carrier wave that is different from described first carrier to transmit the code of the 3rd information to described target cell sub-district; And

Be used to utilize the code of described second carrier wave reception from the 4th information of described target cell sub-district.

35. a device that is used for radio communication comprises:

At least one processor; And

Be coupled to the memory of described at least one processor,

Wherein said at least one processor is configured to:

36. device as claimed in claim 35 is characterized in that, the link of described foundation and described target cell sub-district comprises in response to the measurement utilization at least one characteristic of described link and feeds back the described characteristic of adjusting described link.

37. device as claimed in claim 35, it is characterized in that, described keep and the calling of described source honeycomb district in set up and the link of described target cell sub-district is included in the time division multiplexing of the information of carrying out between described source honeycomb district and the described target cell sub-district.

38. device as claimed in claim 37 is characterized in that, described time division multiplexing of carrying out information comprises:

39. device as claimed in claim 38 is characterized in that, the described transmission first information and described transmission the 3rd information are utilized first carrier separately, and wherein said reception second information and described reception the 4th information are utilized second carrier wave separately.

40. device as claimed in claim 39 is characterized in that, described at least one processor is further configured:

41. device as claimed in claim 40, it is characterized in that, described with described up link be redirected to the 3rd carrier wave and described with described down link be redirected to the 4th carrier wave comprise separately utilize with respectively to described first carrier and described second carrier wave utilize identical the time base (TA) and power are controlled (PC) information in advance.

42. device as claimed in claim 37 is characterized in that, described time division multiplexing of carrying out information comprises:

43. device as claimed in claim 35, it is characterized in that, described keep and the calling of described source honeycomb district in set up and the link of described target cell sub-district is included in the frequency division multiplexing of the information of carrying out between described source honeycomb district and the described target cell sub-district.

44. device as claimed in claim 43 is characterized in that, the described frequency division multiplexing that carries out information comprises: