CN101617556B

CN101617556B - System and method for providing communication in a radio communication system

Info

Publication number: CN101617556B
Application number: CN200780051894.5A
Authority: CN
Inventors: 亨里克·奥鲁佛松; 迈克尔·罗伯茨; 大卫·山德伯瑞
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-02-28
Filing date: 2007-02-28
Publication date: 2013-08-28
Anticipated expiration: 2027-02-28
Also published as: CN101617556A; WO2008104097A1

Abstract

The present invention relates to a method for providing communication in a radio communication system, said radio communication system including a radio transceiver, wherein communication from a user entity in a coverage area of said radio transceiver is carried out in a first communication link between said user entity and said radio transceiver. The method includes the steps of, when synchronization status of said first communication link between said user entity and said radio transceiver is not established in said radio transceiver, transmitting a signal to said user entity, and, when a first period of time has lapsed, allocating a radio transmission resource to said user entity in said first communication link. The invention also relates to a system, a user entity and a communication system.

Description

A kind of system and method that communication is provided in radio communications system

Technical field

The present invention relates to radio communication field, a kind of method for communicating, device and system of providing in radio communications system particularly is provided.

Background technology

Mobile radio system is honeycomb normally, the total coverage area that is this system is split into littler zone, wherein each these littler zone is associated with radio base station, this radio base station has one or more wireless sets, provide the communication resource and user subject (UE) to communicate via radio interface, user subject is as mobile phone, the smart phone in zone as described in being arranged in or have the handheld computer of communication function.These zones are commonly referred to as the residential quarter.

When UE moved in this network, this communication system allowed the interface connection of wireless set (namely to) between this UE and this network to move by this UE being connected to different radio transmitters, to support mobility.

In addition, these communication systems also provide mobility in this meaning, be that user subject can be mobile in the overlay area of specific radio electricity transceiver, namely the distance from subscriber equipment to same wireless set can change the process that communication is carried out fully.

An example of this communication system is the work of the following cellular communication system of current third generation collaborative project (3GPP) definition, and the universal terrestrial radio that is called evolution now inserts (E-UTRA) or Long Term Evolution (LTE).In the LTE system, determined in up link, namely use the transmission plan that is called as single-carrier OFDMA (SC-OFDMA) in the communication from the user subject to the radio base station.In this scheme, the user was re-used in time and frequency.Therefore need arrive this base station (eNodeB or eNB) to meet predetermined structure of time slot with the synchronous relatively time from the ul transmissions of different user entity (UE).

Physically, UE is distributed in the network, and they have and arrive the different propagation delay of eNB, and therefore, the method that needs to be used for these differences of compensation clashes at eNB from the data of these user subject transmission preventing.In LTE, determined when timing slip is arrived in this network measure, just to send Timing Advance (TA) numerical signal to UE from eNB.This timing advance numerical quantity arrives the needed duration in this base station (eNB) corresponding to a signal from this user subject usually.

When this UE synchronously after, i.e. transmission on the communication link from UE to eNB (up link) is by synchronously, it will keep determining to have lost synchronously up to it synchronously always so.This can be this situation, for example, to such an extent as to this UE moves to such an extent that enough far broken away from synchronously apart from eNB.In addition, mobile and a period of time does not use the UE of this up link will finally lose its uplink synchronisation in this radio net.

When UE need obtain uplink synchronisation again, just must use the process that is particularly designed for this scheme.In the LTE system, this process is known as and does not insert (NSRA) synchronously at random.Yet this process has a lot of defectives.

For example, NSRA is based on contention, and therefore, before it was blocked, it can only handle relatively low load.This has caused the resource utilization reduction.And, because UE does not know the definite reception in place, base station regularly, therefore to have to use a certain amount of guard time as the interval to other user, this has caused the further reduction of resource utilization.

Therefore, need a kind of method, be used for providing communication at radio communications system, it can eliminate or reduce at least the defective of current solution.

Summary of the invention

An object of the present invention is to provide a kind of method for communicating that in radio communications system, provides, to address the above problem.This purpose is to realize by the method according to the characteristic of claim 1.

Another object of the present invention provides a kind of system that solves the problems referred to above.This purpose is to realize by the system according to the characteristic of claim 46.

A kind of method for communicating that provides in radio communications system is provided, described radio communications system comprises wireless set, and the communication of user subject is carried by first communication link between described wireless set and the described user subject in the coverage of wherein said wireless set.This method may further comprise the steps: when the synchronous regime of described first communication link between described user subject and the described wireless set is unavailable in described wireless set, transmit signals to described user subject, when through after the very first time section, distribute radio transmission resources to the described user subject in described first communication link.

This has following advantage, when this communication system receives when being transferred to the data of user subject, this communication system (wireless set) does not need to know the current synchronous regime of the communication link from the user subject to the wireless set, the i.e. synchronous regime of up link.The execution that resource is distributed and synchronous regime are irrelevant, and are performed by waiting for a period of time, and this section period can be set to this length, and namely this user subject was carried out synchronization request in described a period of time in the past if having time.So, be similar to existing system, always it is possible to guarantee to communicate by letter, as long as have this advantage, namely do not consider when communication during by the wireless set initialization user subject whether by synchronous situation under, this communication can be guaranteed and be performed.

The present invention also further has this advantage, and namely the signaling about synchronizing process can be reduced in fact in this network.

In an optional embodiment, the resource of described first communication link just was assigned to described user subject before receiving from the response of described user subject, even the synchronous regime of first communication link between described user subject and described wireless set is not set up in described wireless set.Must be by synchronously when communication is initialised even the advantage that this scheme has is user subject, the delay in the transfer of data has reduced in fact.

Further feature of the present invention and advantage thereof will become from following detailed description to preferred embodiments and drawings obviously, and wherein preferred embodiments and drawings only are used as example and provide, and should not be construed as the restriction of any way.

Description of drawings

Fig. 1 shows the example that the present invention can preferably be used long-time evolution (LTE) system therein.

Fig. 2 shows the UE that has different propagation delays and do not have suitable Timing Advance.

Fig. 3 shows not synchronously an example of access burst (NSRA) process at random.

Fig. 4 shows for being inserted by the down link of synchronous UE in up link.

Fig. 5 shows for not inserted by the down link of synchronous UE in up link.

Fig. 6 shows the state machine of the uplink synchronous state of control UE.

Fig. 7 shows according to first illustrative examples of the present invention.

Fig. 8 shows according to optional illustrative examples of the present invention.

Fig. 9 shows according to another illustrative examples of the present invention.

Figure 10 a shows an illustrative examples, and wherein not synchronous UE is in " synchronously unknown " state.

Figure 10 b shows an illustrative examples, and wherein synchronous UE is in " synchronously unknown " state.

Embodiment

As mentioned above, third generation collaborative project (3GPP) radio access network (RAN) working group (WG) that has defined UMTS universal terrestrial radio access network (UTRAN) is defining the following cellular communication system in Long Term Evolution (LTE) job (WI) at present.

Fig. 1 is the structural representation of LTE system 100, comprising two kinds of nodes, radio base station (static wireless set) and eNB (Node B of enhancing) 101-103, and IAD (aGW) 104-105, wherein eNB 101-103 belongs to UTRAN (E-UTRAN) 106 of evolution and the block core (EPC) 107 that aGW belongs to evolution.User subject (UE) 108 is connected to network (E-UTRAN and EPC) by radio interface mode, Uu interface 109.ENB 101-103 handles certain coverage, i.e. communication on the radio interface in the residential quarter, the radio signal in this residential quarter enough by force with allow with described zone in communicating by letter of being satisfied with of UE.

When UE 108 moves in the overlay area that communication system provides, this UE 108 will move to another residential quarter from a residential quarter, therefore, the communication of well afoot will be from the current affiliated eNB of UE, be Serving cell, transfer to the residential quarter that UE is entering, i.e. Target cell.This is to finish by the communication channel of setting up communication channel at the Uu of Target cell interface and terminate on the Uu interface of cell-of-origin.When communication when carrying out, eNB constantly receives transmission from this UE, and if this eNB determine that this UE need adjust its Timing Advance (TA), for example, because increase or the minimizing of the distance from this UE to eNB, suitable TA will be sent to UE.Yet in many application, data are that intermittence rather than continuity ground is transmitted into UE from eNB, for example, will be transmitted into the data of UE or when a webpage is loaded in the web browser of user subject when an application has.In this case, required will losing simultaneously between transfer of data synchronously between UE and eNB is as described in below inciting somebody to action.

As mentioned above, in LTE, certainly in up link, use SC-OFDMA (single-carrier OFDMA).Therefore in this scheme, the user was re-used in time and frequency, and need arrive eNB to meet predetermined structure of time slot with time of relative calibration from the ul transmissions of different user entity (UE).Shown a SC-OFDMA scheme that is used for single-frequency among Fig. 2, just as can be seen from FIG., four UE, UE1......UE4 is assigned to time slot TS1......TS4 respectively.The time of UE1 and UE2 is correctly calibrated, and namely to all beginning and end in their time slots separately of reception of their transmission, therefore, can not influence the transmission from other UE.Yet, begin too late from the transmission of UE3, therefore although it is received among the TS3 and begins, it continues up among general the 4th TS4, conflicts mutually with transmission from UE4, has therefore destroyed two transmission.When physical distribution in network and the UE with the different propagation delays that arrive eNB begin in fact so that the method for synchronization does not begin to transmit, this situation will take place, and wherein UE arrives eNB and has different propagation delays and be attributed to the variation of distance for example and/or arrive stopping of object on the path of eNB.Therefore, need a kind of method of these difference that compensates to avoid disclosed this situation among Fig. 2.In addition, in radio net, do not use the UE of up link that final change owing to the distance from UE to eNB is lost its uplink synchronisation in movement and a period of time.In order to obtain uplink synchronisation again, have to use specially designed flow process.In LTE, determined not insert (NSRA) synchronously at random when measuring timing slip when this network uses, just send Timing Advance (TA) numerical signal from eNB and (it should be noted that to structure it only is to be proposed not final decision at present to UE, therefore this process only is used for the illustrative purpose), Fig. 3 has illustrated this situation, and will be described below.

In LTE, in random access procedure, when measuring the reception signal, eNB just must carry out timing estimation usually.This eNB sends the Timing Advance order that is fit to and arrives this UE then, and this UE correspondingly adjusts uplink transmit timing.

In SC-OFDMA, time domain is split into frame, and wherein every frame is split into minimum the distributed time period, i.e. time slot, or Physical Resource Block (PRB), and its length is in fact corresponding to Transmission Time Interval (TTI) that UE was allowed to send.PRB (TTI) for example can be 0.5ms or 1ms.In described example, PRB (TTI) equals 1ms.Send the NSRA request in Random Access Channel (RACH).The RACH resource can be located arbitrarily and can be comprised for example one or more TTI.Can there be a plurality of continuous TTI of single frequency to be assigned to RACH.In addition, or further, and this RACH resource also can be dispensed on a plurality of frequencies.For example, the RACH resource can periodically be reappeared, for example every 20ms.

Wish to set up or rebuild to stand with the synchronous UE that communicates by letter of eNB to send the NSRA request, for example on this Random Access Channel (RACH), and a NSRA request comprises two parts: preamble, the i.e. short signal that was sent out before the second portion transmission and more higher layer message.Yet, this more higher layer message only when being authorized by eNB, just be sent out.

For fear of with the interference of subsequent communications resource, namely consider any time uncertainly preventing that eNB from receiving the RACH signal during being exclusively used in the resource of transfer of data synchronously, need the segment protect time in ending place of TTI.I.e. this preamble is done and is shorter than for example 1ms.The protection duration at interval should be considered cycle delay and postpone expansion.This point can both be understood, and required guard time depends on cell size, and bigger cell size needs longer guard time.As from figure, seeing, also have Cyclic Prefix (CP) before the preamble, it has the function corresponding to guard time.

Yet the preamble that is shortened is estimated the reception timing of particular UE for eNB and still is enough according to top description sends the TA message signale.But this process can run into the puzzlement of following defective:

NSRA is based on contention, can handle the access attempts from an above UE among the single RACH simultaneously even this means eNB, before it stops up, still can only handle low relatively load, therefore causes the reduction of resource utilization.In addition, the delay before process finishes is because the possibility of conflict can become quite big.And, because UE does not know the cut-grafting receipts timing really of eNB place, have to use a certain amount of guard time as the interval to other users, this has caused the further reduction of resource utilization.

Therefore because these defectives, with use NSRA required the amount that inserts of up link remain on minimum and have superiority, namely particular UE synchronously between time period should be retained as long as much as possible.

Normally, the synchronous regime of this network and the particular UE of this UE, namely whether this UE has identical understanding by synchronously.The reason that produces this demand can retransmit (HARQ) scheme from the synchronized mixes that is selected for down link and draw.Insert for down link, this network is known the response that when can expect to obtain the ACK/NACK form.This illustrates that in Fig. 4 wherein in step 401, eNB receives and will be sent to the data of UE, and in step 402 and step 403, this eNB begins to transmit with one or more data flow (data procedures) afterwards.In step 405 and step 405, when this UE quilt was synchronous, eNB knew affirmation or denies that message will be received in the specific time.

Time of reception based on described signal, confirming and/or denying that the indication of the time resource in the message can be implied, that is, if time resource comprises time slot, the ACK/NACK that is used for this particular time-slot so just should be after the time slot of predetermined quantity, for example after three time slots.

On the other hand, if this UE is not synchronous, can only postpones ACK/NACK and respond to provide time for the NSRA process.This illustrates that in Fig. 5 wherein in step 501, eNB receives be used to after the data that send to UE, this UE of eNB paging in step 502.When this UE receives this beep-page message, attempt the RACH signaling procedure to obtain synchronously.Yet, congested if RACH takes place, can require the RACH preamble of a plurality of trials this UE so that eNB can successfully decode from step 503 to step 505 so and determine suitable TA, this TA is sent to this UE in step 506.As seeing from figure, when the UE quilt was synchronous, the delay 507 between the time point 508 of the actual beginning of the time point that data can begin to transmit and transfer of data was to exist really.The time point that begins from transfer of data begins, and this process among Fig. 5 is equal to the process among Fig. 4.

Next, if this network has identical viewpoint with the UE uplink synchronization state of this UE, can select cut-in method suitably according to Fig. 4 or 5 so.

This judges that (selection of process) can be based on for example since timer that last time, up link inserted.When this timer overflows, this UE will be considered to be on this up link not synchronous.If provided the maximal rate (for example 500km/h) that inactive time section and for example UE of hypothesis can occur in this network, the synchronous regime of UE just can be determined based on these standards.

Yet, be set to identical numerical value if be used for the timer of all UE, namely corresponding to the UE speed of worst case (for example, the 500km/h that picture is top), so after short relatively a period of time, UE than Hypomobility will be considered to not synchronous, therefore, has caused the reduction of network performance and the possible excessive use of NSRA.

The invention provides a solution, it has overcome or has reduced at least the defective of current solution.According to the present invention, when network was not known the synchronous regime of mobile radio station, UE independently determined its uplink synchronization state.Such advantage is to use the up link access amount of NSRA to be reduced by essence.In addition, according to the present invention, do not need this system to know the current synchronous regime of this UE, still from the angle of system, communication process can be the same, and does not consider that whether this UE is by synchronously.

Because this system reaches an agreement to synchronous regime with this UE is unnecessary, therefore can define how long it will be considered to synchronous by UE.When UE becomes when synchronous, to such an extent as to will keep moving to enough up to it synchronously far (for example having broken away from synchronously, requiring synchronously at one is in the exemplary system of 1 μ s, and this UE can be considered to synchronous in the about 150 meters distance on the radial direction that arrives this radio base station).Therefore, according to the present invention, with respect to the system that must consider worst case, it is more of a specified duration that this UE can keep under synchronous regime.

Have several different methods to can be used for UE and prolong the synchronous time of its maintenance, the non-exhaustive list of methods availalbe comprises:

The reference at interval of-accurate timing, and

-navigation system is such as GPS or any other navigation system.

These methods also have following advantage, and namely the mobile radio station of Hypomobility (static state or walking mobile radio station) can keep synchronous regime more of a specified duration, has reduced the NSRA trial, and have therefore strengthened system resource utilization.For example, UE can be set to estimate their speed, and sets intervalometer based on estimated speed, and when this timer overflowed, this UE determined certainly as not synchronous.

Fig. 6 has disclosed the state machine of controlling the uplink synchronization state of UE according to the present invention.According to prior art, this UE both can be in " synchronously " state 601, and wherein UE and network are all known this UE by synchronously, or also can be in " not synchronous " state 602, and wherein this UE is thought not synchronous by himself and network.This UE for example can enter " synchronously " state 601 by the NSRA request.Through after the scheduled time, for example describedly set by timer 1 according to top, this UE is defined as not synchronous again.Yet according to the present invention, this UE is allowed to be in " synchronously unknown " state 603.For example, when above-mentioned timer 1 overflowed, this UE can get the hang of 603.If this network need insert the UE in state 603, can not use the standard cut-in method of Fig. 4 or 5 owing to above-mentioned synchronous HARQ scheme.As an alternative, have to use some optional methods.Below, illustrative examples of the present invention is described with reference to Fig. 7-10b.Prerequisite for all examples that present is, UE is in " synchronously unknown " state according to Fig. 6, and network need initiate the access to the UE in the down link, for example, sends data.This UE can be in " unknown " state 603 time period longer than timer 1 synchronously, this section time-delay both can be determined according to recited above by UE itself, also can be by the second timer-timer 2 of network settings-determine that UE will unconditionally be turned back to state 602 in the case.Yet the event horizon of timer 2 can be set to longer than the time of timer 1, attempts and the raising resource utilization with the NSRA in this reduction system in fact.When being used according to the present invention, network will not know that whether UE is in state 602, does not know at least before timer 2 overflows.

After step 701 received be used to the data that are transferred to UE, in the step 702, network was carried out " paging " to UE, and namely it sends SMS message to notify UE about downlink transmission on the horizon.Time 703 is presented to allow UE to obtain uplink synchronisation then, if necessary.If in the time interval 703, do not receive the uplink synchronisation request, namely this UE has determined that it is synchronous, eNB begins to transmit with one or more data flow (data procedures) in step 704 and 705 so, and distributes uplink resource 706,707 to give UE to be used for the transmission of acknowledge message.Because therefore this UE is had the affirmation of suitable TA or denies that message will be transmitted, so that they in the desired time, namely 706 and 707, are received at eNB by synchronously.On the other hand, if this UE determines it not by synchronously, namely it is in the state 602 among Fig. 6, and this UE for example can use the NSRA process to obtain synchronously in the time interval 703 so.This time interval 703 can be set so that before the NSRA of success attempts being acquired, and the NSRA of suitable quantity attempts and can be performed and refuse, for example, and owing to contention is rejected.The present invention has following advantage, i.e. reduction to the NSRA signaling can allow to use the time period 703 shorter than prior art.The embodiment that describes among Fig. 7 has following advantage, and namely network can allow the synchronous regime of UE to be " synchronously unknown ", and therefore if necessary, this UE can decide its synchronous regime in its sole discretion and use NSRA.

Also need to consider the delay for NSRA, be the time period 703, it means that packetization delay can't reduce with respect to the situation of synchronous regime based on timer and worst case UE speed, certainly, unless the NSRA signaling that reduces as above make this time period shorten said.Yet, that the NSRA process is based on contention and comprise power ramping (power ramping), so this delay is unpredictable and has to consider delay for this process worst case.Even so, the NSRA signaling in the network still is reduced.

In an optional embodiment of the disclosed example of Fig. 7, do not judge in the time interval 703, whether to receive the uplink synchronisation request, but after the described time interval of process, eNB begins to transmit with one or more data flow (data procedures) in any case.Such advantage is that this UE has the time and carries out synchronously, if necessary, wherein saidly for example can be performed by launch the NSRA process as top synchronously, or with any other suitable manner, namely not need by sending signaling with specific eNB.

Shown among Fig. 8 according to an optional embodiment of the present invention.In this embodiment, omitted the transmission of clear and definite beep-page message, as an alternative, in step 802, this network sends to this UE with user data.Then, be used to this UE corresponding to the time period 803 of the time period 703 among Fig. 7 and carry out the NSRA process, if necessary.After this past time, and do not detect the NSRA request, this network is in step 804 continuation transmission data and to the ACK/NACK Resources allocation 805,806 in the up link so, and namely this network continues normal data transfer.Embodiment according to Fig. 8 has following advantage, i.e. packetization delay is slightly reduced with respect to the process among Fig. 7, because data are used as clear and definite paging.Yet the time that is used for the RSNA process still needs to consider.

Shown the illustrative process that is similar to shown process among Fig. 8 among Fig. 9, except being sent out in phase I (namely before ACK/NACK is received) a plurality of HARQ processes 902,903.The quantity of the process that sends for example can equal the process maximum quantity that employed specific HARQ scheme allows.This embodiment has following advantage, and namely network behavior is similar to the proper network behavior, if UE is by synchronously, except an ACK/NACK message is received delay before.This embodiment has the same packetization delay that is associated with the embodiment of Fig. 7 and 8.

Shown an illustrative examples in Figure 10 a-b, wherein packetization delay is reduced to be used for the synchronous UE at " synchronously unknown " state with respect to the embodiment among Fig. 7-9.In this embodiment, this network uses a plurality of HARQ processes to send data and distributes

uplink resource

1004,1005 to be used for conventional ACK/NACK response (referring to Figure 10 a) immediately, namely the timer that is distributed in to uplink resource overflows before not delay, and this process is similar to the content of describing among Fig. 4 that is used for synchronous UE, and wherein network is known the synchronous regime of this UE.After 1002 and 1003 transmission, whether network also detects the ACK/

NACK resource

1004,1005 of distributing and is used by UE.If resource is used, the transmission of data continues to be sent out up to all data so.

If ACK/

NACK resource

1004,1005 is not used, this network supposes that this UE is not synchronous so, namely need the NSRA process, and the ACK/NACK message of

Resources allocation

1006,1007 to be used for postponing, the delay that wherein is similar to above-described embodiment is set so that the NSRA process can be performed.Thereby uplink resource can be wasted, if this UE is not synchronous.And, the embodiment of Figure 10 a-b has following advantage, namely with respect to using the situation that decides synchronous regime based on the ambulant timer of worst case UE, has reduced the load on the Random Access Channel, and for synchronous UE, do not postpone with respect to prior art system.

In a word, the illustrative examples of the invention described above has general advantage, and namely network operation is simplified, and the easier design of this network and enforcement.In addition, the NSRA signaling can be reduced in fact, to bring better resource utilization.

Although the present invention is described in conjunction with the LTE system, principle of the present invention is applicable to general radio communications system, and therefore is applicable to any system that wherein needs synchronous ul transmissions.

In addition, the present invention is described for cellular communication system.Yet should be appreciated that the present invention is equally applicable to following any system, user subject is movably with respect to wireless set in this system, and the communication of requirement from the user subject to the wireless set is synchronous.

Claims

1. one kind is used for providing method for communicating at radio communications system, described radio communications system comprises wireless set, the communication of the user subject in the described wireless set overlay area is carried by first communication link between described wireless set and the described user subject, described first communication link is uplink

It is characterized in that this method may further comprise the steps:

When the synchronous regime of described first communication link between described user subject and the described wireless set is unavailable in described wireless set, transmit a signal to described user subject;

When through after the very first time section, distribute radio transmission resources to the described user subject in described first communication link.

2. the method for claim 1 is characterized in that, this method further comprises: when through described very first time section and before described user subject is distributed described resource, send data to described user subject from described transceiver.

3. the method for claim 1 is characterized in that, this method further comprises:

Whether detection receives the response to described signal from described user subject in described very first time section, if do not obtain response in described very first time section, the described resource in so described first communication link is assigned to described user subject.

4. the method for claim 1, it is characterized in that, the length of described very first time section is set so that synchronizing process can be carried out in described user subject in described very first time section, described synchronizing process is used for described first communication link synchronously, described synchronizing process comprises the transmission from described user subject to described transceiver, and in the reception of described transceiver to described transmission.

5. the method for claim 1 is characterized in that, has when being transferred to the data of described user subject at wireless set, carries out described step.

6. the method for claim 1 is characterized in that, the described signal that sends to described user subject comprises at least a portion for the data that send to described user subject that receives.

7. the method for claim 1 is characterized in that, when determining that described first communication link quilt synchronously, sends signaling by the described Resources allocation at described first communication link, and described user subject responds the signal of described transmission.

8. the method for claim 1 is characterized in that, further comprises:

In described user subject, when receiving the signal of described transmission from wireless set, maybe may not initiate synchronizing process not synchronously synchronously if determine described first communication link between user subject and the wireless set.

9. the method for claim 1 is characterized in that, further comprises:

In described user subject, determine described synchronous regime.

10. method as claimed in claim 9 is characterized in that, described user subject is determined its synchronous regime based on the speed of estimating.

11. method as claimed in claim 9 is characterized in that, this user subject is determined its uplink synchronization state based on its current location.

12. method as claimed in claim 11 is characterized in that, the current location of described user subject is determined by navigation system.

13. method as claimed in claim 9 is characterized in that, further comprises:

When receiving the signal of described transmission from described transceiver, determine the described synchronous regime of described first communication link.

14. method as claimed in claim 7 is characterized in that, the described signaling on the described Resources allocation of first communication link comprises about at least one affirmation ACK of data reception and/or at least one denies NACK message.

15. method as claimed in claim 14 is characterized in that, based on the time that receives described signal from described wireless set, the described indication of the resource of clear and definite described ACK/NACK signaling.

16. method as claimed in claim 14 is characterized in that, user subject uses the described Resources allocation of described first communication link to be used for ul transmissions.

17. method as claimed in claim 8 is characterized in that, described synchronizing process is not for inserting the NSRA process synchronously at random.

18. method as claimed in claim 8 is characterized in that, described synchronizing process comprises:

Send signaling to described wireless set, and

Described wireless set is in response to described signaling, and described response comprises at least one synchronization parameter.

19. method as claimed in claim 18 is characterized in that, described synchronization parameter is the timing advance numerical quantity.

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

Described timing advance numerical quantity together sends with data in band, and described data are included in the header information in the protocol Data Unit identical with data.

21. method as claimed in claim 19 is characterized in that, described timing advance numerical quantity is sent out in protocol Data Unit, and this protocol Data Unit is located away from the protocol Data Unit for data.

22. method as claimed in claim 18 is characterized in that, further comprises:

Resources allocation is given the described user subject in described first communication link.

23. the method for claim 1, it is characterized in that, described radio communications system is cellular communication system, and described communication system comprises a plurality of residential quarters, each residential quarter comprise at least one wireless set be used for providing with the overlay area in the communicating by letter of at least one user subject.

24. the method for claim 1 is characterized in that, distributes a plurality of radio transmission resources to give described user subject.

25. the method for claim 1 is characterized in that, further comprises:

Data are sent to described user subject as a plurality of transmission, and wherein said user subject is in response to the described a plurality of transmission on a plurality of resources.

26. the method for claim 1 is characterized in that, described wireless set is the radio base station in the cellular communication system.

27. the method for claim 1 is characterized in that, described wireless set comprises that the Node B of the enhancing in the universal terrestrial radio access network UTRAN system that 3GPP strengthens is eNB.

28. the method for claim 1 is characterized in that, described first communication link comprises up link.

29. one kind is used for providing method for communicating at radio communications system, described radio communications system comprises wireless set, the communication of the user subject in the described wireless set overlay area is carried by first communication link between described wireless set and the described user subject, described first communication link is uplink

It is characterized in that this method may further comprise the steps:

Transmit a signal to described user subject;

Even the synchronous regime of described first communication link between described user subject and the described wireless set is unavailable in described wireless set, before the response that receives from described user subject, distribute the radio transmission resources of described first communication link to give described user subject.

30. method as claimed in claim 29 is characterized in that, described step is performed when wireless set has be used to the data that are transferred to described user subject.

31. method as claimed in claim 29 is characterized in that, the described signal that sends to described user subject comprises at least a portion for the data that send to described user subject that receives.

32. method as claimed in claim 29 is characterized in that, when determining that described first communication link quilt synchronously, described user subject sends the signal that signal responds described transmission by the described Resources allocation at described first communication link.

33. method as claimed in claim 29 is characterized in that, further comprises:

In described user subject, when receiving the signal of described transmission from wireless set, maybe may not initiate synchronizing process so not synchronously synchronously if determine described first communication link between user subject and the wireless set.

34. method as claimed in claim 29 is characterized in that, further comprises:

In described user subject, determine the described synchronous regime of described first communication link.

35. method as claimed in claim 32 is characterized in that, the described signaling on the described Resources allocation of first communication link comprises about one of the reception of described data confirms that ACK and/or one deny NACK message.

36. method as claimed in claim 35 is characterized in that, based on the time that receives described signal from described wireless set, the described indication of the resource of clear and definite described ACK/NACK signaling.

37. method as claimed in claim 35 is characterized in that user subject uses the described Resources allocation of described first communication link to be used for ul transmissions.

38. method as claimed in claim 33 is characterized in that, described synchronizing process comprises the NSRA process that do not insert at random synchronously.

39. method as claimed in claim 33 is characterized in that, described synchronizing process comprises:

Send signaling to described wireless set, and

40. method as claimed in claim 39 is characterized in that, described synchronization parameter comprises the timing advance numerical quantity.

41. method as claimed in claim 39 is characterized in that, further comprises:

42. method as claimed in claim 29 is characterized in that, described wireless set is the radio base station in the cellular communication system.

43. method as claimed in claim 29 is characterized in that, distributes a plurality of radio transmission resources to give described user subject.

44. method as claimed in claim 29 is characterized in that, further comprises:

Data are sent to described user subject as a plurality of transmission, and a plurality of resource is assigned to described user subject, and wherein said user subject is in response to the described a plurality of transmission on described a plurality of resources.

45. system that is used for providing at radio communications system communication, described radio communications system comprises wireless set, the communication of the user subject in the described wireless set overlay area is carried by first communication link between described wireless set and the described user subject, described first communication link is uplink

It is characterized in that this system comprises that a device is used for:

When the synchronous regime of described first communication link between described user subject and the described wireless set is unavailable in described wireless set, transmit a signal to described user subject, and

46. system as claimed in claim 45 is characterized in that, comprises that further a device is used for:

When through described very first time section and before described user subject is distributed described resource, send data to described user subject from described transceiver.

47. system as claimed in claim 45 is characterized in that, comprises that further a device is used for:

Whether detection receives the response to described signal from described user subject in described very first time section, if and wherein in described very first time section, do not obtain response, the described resource in so described first communication link would be assigned to described user subject.

48. system as claimed in claim 45, it is characterized in that, the length of described very first time section is set so that synchronizing process can be carried out in described user subject in described very first time section, described synchronizing process is used for described first communication link synchronously, described synchronizing process comprises the transmission from described user subject to described transceiver, and in the reception of described transceiver to described transmission.

49. system as claimed in claim 45 is characterized in that, sends described signal to described user subject when wireless set has be used to the data that are transferred to described user subject.

50. system as claimed in claim 45 is characterized in that, the described signal that sends to described user subject comprises at least a portion for the data that send to described user subject that receives.

51. system as claimed in claim 45 is characterized in that, when determining that described first communication link quilt synchronously, described user subject sends the signal that signal responds described transmission by the described Resources allocation at described first communication link.

52. system as claimed in claim 45 is characterized in that, comprises that further a device is used for:

53. system as claimed in claim 45 is characterized in that, further comprises for the device of determining described synchronous regime in described user subject.

54. system as claimed in claim 53 is characterized in that, described user subject is determined its synchronous regime based on the speed of estimating.

55. system as claimed in claim 53 is characterized in that, described user subject is determined its uplink synchronization state based on its current location.

56. system as claimed in claim 55 is characterized in that, the current location of described user subject is determined by navigation system.

57. system as claimed in claim 53 is characterized in that, further comprises for when receiving described transmission from described transceiver, determines the device of the described synchronous regime of described first communication link.

58. system as claimed in claim 51 is characterized in that, the described signaling on the described Resources allocation of first communication link comprises about at least one affirmation ACK of data reception and/or at least one denies NACK message.

59. system as claimed in claim 58 is characterized in that, based on the time that receives described signal from described wireless set, the described indication of the resource of clear and definite described ACK/NACK signaling.

60. system as claimed in claim 58 is characterized in that, user subject uses the described Resources allocation of described first communication link to carry out ul transmissions.

61. system as claimed in claim 52 is characterized in that, described synchronizing process is not for inserting the NSRA process synchronously at random.

62. system as claimed in claim 52 is characterized in that, described synchronizing process comprises:

Send signaling to described wireless set, and

63. system as claimed in claim 62 is characterized in that described synchronization parameter is the timing advance numerical quantity.

64. system as claimed in claim 62 is characterized in that, further comprises:

65. system as claimed in claim 45, it is characterized in that, described radio communications system is cellular communication system, and described communication system comprises a plurality of residential quarters, each residential quarter comprise at least one wireless set be used for providing with the overlay area in the communicating by letter of at least one user subject.

66. system as claimed in claim 45 is characterized in that,

Distribute a plurality of radio transmission resources to give described user subject.

67. system as claimed in claim 45 is characterized in that, data are sent to described user subject as a plurality of transmission, and wherein said user subject is set in response to the described a plurality of transmission on a plurality of resources.

68. system as claimed in claim 45 is characterized in that, described wireless set is the radio base station in the cellular communication system.

69. system as claimed in claim 45 is characterized in that, described wireless set is that the Node B that the universal terrestrial radio of evolution inserts the enhancing in the E-UTRA system is eNB.

70. system that is used for providing at radio communications system communication, described radio communications system comprises wireless set, the communication of the user subject in the described wireless set overlay area is carried by first communication link between described wireless set and the described user subject, described first communication link is uplink

It is characterized in that this system comprises that a device is used for:

Transmit a signal to described user subject;

Before receiving from the response of described user subject, distribute the radio transmission resources of described first communication link to give described user subject, even the synchronous regime of described first communication link between described user subject and the described wireless set is unavailable in described wireless set.

71. as the described system of claim 70, it is characterized in that, be included in when wireless set has be used to the data that are transferred to described user subject and send described signal to the device of described user subject.

72., it is characterized in that the described signal that sends to described user subject comprises at least a portion for the data that send to described user subject that receives as the described system of claim 70.

73. as the described system of claim 70, it is characterized in that, when determining that described first communication link quilt synchronously, described user subject is set to send the signal that signal responds described transmission by the described Resources allocation at described first communication link.

74. as the described system of claim 70, it is characterized in that, comprise that further a device is used for:

In described user subject, when receiving the signal of described transmission from wireless set, if it determines that described first communication link between user subject and the wireless set synchronously maybe may be not synchronous, not initiate synchronizing process so.

75. as the described system of claim 70, it is characterized in that, further be included in the device of determining the described synchronous regime of described first communication link in the described user subject.

76., it is characterized in that the described signaling on the described Resources allocation of first communication link is set to comprise that about the reception of described data confirms that ACK and/or one deny NACK message as the described system of claim 70.

77. as the described system of claim 76, it is characterized in that, based on the time that receives described signal from described wireless set, the described indication of the resource of clear and definite described ACK/NACK signaling.

78., it is characterized in that user subject uses the described Resources allocation of described first communication link to carry out ul transmissions as the described system of claim 76.

79. as the described system of claim 74, it is characterized in that described synchronizing process is not for inserting the NSRA process synchronously at random.

80., it is characterized in that described synchronizing process comprises as the described system of claim 74:

Send signaling to described wireless set, and

81. as the described system of claim 80, it is characterized in that described synchronization parameter is the timing advance numerical quantity.

82. as the described system of claim 80, it is characterized in that, further comprise:

83., it is characterized in that described wireless set is the radio base station in the cellular communication system as the described system of claim 70.

84. as the described system of claim 70, it is characterized in that, distribute a plurality of radio transmission resources to give described user subject.

85. as the described system of claim 70, it is characterized in that, data are sent to described user subject as a plurality of transmission, and a plurality of resource is assigned to described user subject, and wherein said user subject is in response to the described a plurality of transmission on described a plurality of resources.

86. communication system is characterized in that, comprises as any one system among the claim 45-85.