CN104540236A

CN104540236A - Resource allocation method, resource allocation system, terminal and base station for direct communication of terminal

Info

Publication number: CN104540236A
Application number: CN201510052175.1A
Authority: CN
Inventors: 雷艺学; 李明菊; 张晨璐; 张云飞
Original assignee: Shenzhen Coolpad Technologies Co Ltd
Current assignee: Shenzhen Coolpad Technologies Co Ltd
Priority date: 2015-01-30
Filing date: 2015-01-30
Publication date: 2015-04-22
Anticipated expiration: 2035-01-30
Also published as: WO2016119282A1; CN104540236B

Abstract

The invention provides a resource allocation method, a resource allocation system, a terminal and a base station for direct communication of the terminal. The resource allocation method applicable to the terminal and used for direct communication of the terminal comprises the steps: detecting a time-frequency resource already occupied by other D2D terminals when a data transmission service is needed; selecting the time-frequency resource for processing the data transmission service according to the time-frequency resource occupied by other D2D terminals and the attribute information of the data transmission service. According to the technical scheme, the problem of the confliction in the allocation of the time-frequency resource can be avoided, the resource selection problem when the time-frequency resource is insufficient can be effectively solved, and reasonability in allocation and application of the resource can be realized.

Description

For the resource allocation method of the direct-connected communication of terminal, system, terminal and base station

Technical field

The present invention relates to communication technical field, in particular to a kind of resource allocation method for the direct-connected communication of terminal, a kind of resource configuration system for the direct-connected communication of terminal, a kind of terminal and a kind of base station.

Background technology

Along with the software and hardware technology of mobile terminal and the development of wireless communication technology, the direct-connected communication technology of terminal (Device to Device, i.e. D2D, be the technology of the terminal direct communication that 3GPP Rel-12 introduces, allow user data transmission without the infrastructure of cellular network) become a kind of important technology point gradually.D2D technology mainly comprises D2D discovery (i.e. discovery phase) and D2Dcommunication (i.e. stage of communication), D2D discovery and D2D communication is independently business, D2D communication allows two UE directly directly to be carried out transmission and the transmission of data by specific channel (sidelink channel), and without the need to the transmission through base station.

D2D communication includes the network coverage and without the network coverage two scenes.Under the scene having the network coverage, if D2D communication employs the frequency spectrum resource of grand network side, then network side is needed to carry out management and control to the resource that D2D communicates.Prior art has had two kinds to configure D2D for the scene under the network coverage communicate pattern of the running time-frequency resource used: a kind of is communicate (hereinafter referred to as Mode A) based on the D2D of directly scheduling, particularly, UE (User Equipment, subscriber equipment) need to be in connection status, when base station carries out transfer of data by signaling instruction transmit leg UE on which Resource Block, and the configuration of this resource is based on each UE; Another kind communicates (hereinafter referred to as Mode B) based on the D2D of shared resource, and basic thought is the UE under a MPS process, and D2D communication is carried out in a running time-frequency resource pond of sharing base station broadcast.The each own respective pluses and minuses of above-mentioned two kinds of configuration modes are all the schemes of actual needs.

Prior art only discloses above two kinds of basic communication patterns, but do not solve when Mode B, how UE selects running time-frequency resource to solve issuable resource contention and inadequate resource problem, does not namely solve the conflict of UE under non-relay scene and relay scene and collision problem in prior art.

Therefore, how can solve UE under the signal intelligence of Mode B, realize effective distribution of resource, conflict and inadequate resource become technical problem urgently to be resolved hurrily to avoid the distribution of running time-frequency resource to occur.

Summary of the invention

The present invention just based on above-mentioned technical problem one of at least, propose a kind of resource allocation proposal for the direct-connected communication of terminal newly, make it possible to avoid the distribution of running time-frequency resource to occur the problem of conflicting, efficiently solve the partner selection when running time-frequency resource is inadequate simultaneously, achieve reasonable distribution and the use of resource.

In view of this, the present invention proposes a kind of resource allocation method for the direct-connected communication of terminal being applicable to terminal, comprising: when determining to need to carry out data transmission service, detecting the running time-frequency resource that other D2D terminals have taken; The running time-frequency resource taken according to other D2D terminals described and the attribute information of described data transmission service, select the running time-frequency resource for the treatment of described data transmission service.

In this technical scheme, due in the communication scenes of Mode B, running time-frequency resource in the running time-frequency resource pond of UE sharing base station broadcast, therefore after the running time-frequency resource that other D2D terminals have taken being detected, select the running time-frequency resource for the treatment of data transmission service by the running time-frequency resource taken according to other D2D terminals, make it possible to avoid the distribution of running time-frequency resource to occur the problem of conflicting, simultaneously, attribute information due to different data transmission services identifies the critical property of data transmission service, and for the requirement in time limit, therefore by selecting the running time-frequency resource for the treatment of data transmission service according to the attribute information of data transmission service, make it possible to, according to data transmission service, running time-frequency resource is selected for the calling hierarchy (or critical property degree) in time limit, as when data transmission service pair existence require and running time-frequency resource in running time-frequency resource pond is inadequate time, other running time-frequency resources are selected to carry out transfer of data, efficiently solve the partner selection when running time-frequency resource is inadequate, achieve reasonable distribution and the use of resource.

In technique scheme, preferably, the step for the treatment of the running time-frequency resource of described data transmission service is selected specifically to comprise: the running time-frequency resource taken according to other D2D terminals described, judges whether there is unappropriated running time-frequency resource in preallocated running time-frequency resource pond, base station; When judging to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, in described unappropriated running time-frequency resource, select the running time-frequency resource for the treatment of described data transmission service.

In this technical scheme, if the running time-frequency resource in running time-frequency resource pond (i.e. the resource of Mode B) is all not occupied, then the running time-frequency resource in running time-frequency resource pond can be directly selected to carry out transfer of data.

In technique scheme, preferably, also comprise: when judging that all running time-frequency resources in described preallocated running time-frequency resource pond are all occupied, judge whether described data transmission service has time limit requirement according to the attribute information of described data transmission service; If judge, described data transmission service has time limit requirement, then send resource scheduling request to base station, with the running time-frequency resource of configuration mode distribution for the treatment of described data transmission service of asking described base station to adopt directly scheduling running time-frequency resource, or

If judge, described data transmission service has time limit requirement, then from the abnormal running time-frequency resource pond that described base station configures, select the running time-frequency resource for the treatment of described data transmission service.

In this technical scheme, if the running time-frequency resource in the resource pool of Mode B is all occupied, then can select running time-frequency resource according to the requirement of data transmission service to the time limit, particularly, when data transmission service has the time limit to require, can change to by UE the source scheduling mode adopting Mode A directly to base station requests, or select corresponding running time-frequency resource from abnormal running time-frequency resource pond.

Wherein, if all running time-frequency resources in preallocated running time-frequency resource pond are all occupied, and when data transmission service does not have time limit requirement, following two kinds of way selection running time-frequency resources can be adopted:

Mode one:

In technique scheme, preferably, also comprise: if judge, described data transmission service does not have time limit requirement, then often after the first predetermined time interval, all again judge whether there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, until when judging to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, select the running time-frequency resource for the treatment of described data transmission service in unappropriated running time-frequency resource.

In which, after first scheduled time, all again judge whether there is unappropriated running time-frequency resource in preallocated running time-frequency resource pond, until determine to there is unappropriated running time-frequency resource in preallocated running time-frequency resource pond.

Mode two:

In technique scheme, preferably, also comprise: if judge, described data transmission service does not have time limit requirement, then often after the first predetermined time interval, all again judge whether there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, until when all occupied number of times of all running time-frequency resources judging in described preallocated running time-frequency resource pond reaches pre-determined number, or until not there is time limit requirement after second scheduled time at the described data transmission service of judgement, resource request instruction is sent to described base station, new running time-frequency resource pond is distributed when receiving the instruction of described resource request to make described base station, or the resource pool indicating other to configure, or distribute special running time-frequency resource.

In which, if after judging pre-determined number or after second scheduled time, still determine there is not unappropriated running time-frequency resource in preallocated running time-frequency resource pond, then can send instruction to base station, to adopt other way selection running time-frequency resources.

In technique scheme, preferably, the step detecting the running time-frequency resource that other D2D terminals have taken specifically comprises: determine that other D2D terminals described are link terminal or ordinary terminal (i.e. non-relaying D2D terminal) according to the broadcast signaling that other D2D terminals described send; When determining that other D2D terminals described are link terminals, detect the resource scheduling information that described link terminal sends, to determine the running time-frequency resource taken by the D2D terminal that described link terminal is dispatched; And when determining that other D2D terminals described are ordinary terminals, detect the resource scheduling information that described ordinary terminal sends, to determine the running time-frequency resource that described ordinary terminal has taken.

In this technical scheme, for there is relaying and there is not the scene of relaying, different detection schemes is proposed respectively in the application, particularly, for the scene that there is not relaying, namely, when other D2D terminals are ordinary terminals, the resource scheduling information that other D2D terminals send can be detected, to determine the occupation condition of other D2D terminals; And for there is the scene of relaying, because link terminal assume responsibility for the function into cluster terminal distribution running time-frequency resource, therefore can determine by the occupation condition of the terminal of relaying (namely by D2D terminal that link terminal is dispatched) by detecting the resource scheduling information of link terminal.

In addition, it should be noted that, in one embodiment of the invention, link terminal (namely as the terminal of via node) is distributed to also can space division multiplexing by the running time-frequency resource of link terminal.Therefore, with regard to link terminal, the mode of its B in mode obtains resource pool from base station, but concerning by link terminal, is that the mode of A in mode obtains scheduling resource from link terminal.Also it should be noted that, this mechanism requires that link terminal is known by the existence of link terminal, namely possibly by carrying out D2D discovery mechanism or other are known alternately by the information of link terminal.

According to a second aspect of the invention, also proposed a kind of resource configuration system for the direct-connected communication of terminal being applicable to terminal, comprising: detecting unit, for when determining to need to carry out data transmission service, detecting the running time-frequency resource that other D2D terminals have taken; Processing unit, for the attribute information of the running time-frequency resource that taken according to other D2D terminals described and described data transmission service, selects the running time-frequency resource for the treatment of described data transmission service.

In technique scheme, preferably, described processing unit comprises: the first judging unit, for the running time-frequency resource taken according to other D2D terminals described, judges whether there is unappropriated running time-frequency resource in preallocated running time-frequency resource pond, base station; Selected cell, for when described first judging unit judges to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, selects the running time-frequency resource for the treatment of described data transmission service in described unappropriated running time-frequency resource.

In technique scheme, preferably, described processing unit also comprises: the second judging unit, when all running time-frequency resources for judging in described preallocated running time-frequency resource pond at described first judging unit are all occupied, judge whether described data transmission service has time limit requirement according to the attribute information of described data transmission service; Transmitting element, during for judging that at described second judging unit described data transmission service has time limit requirement, resource scheduling request is sent, with the running time-frequency resource of configuration mode distribution for the treatment of described data transmission service of asking described base station to adopt directly scheduling running time-frequency resource to base station; Or

Described selected cell also for, described second judging unit judge described data transmission service have the time limit require time, from the abnormal running time-frequency resource pond that described base station configures, select the running time-frequency resource for the treatment of described data transmission service.

Mode one:

Described second judging unit also for, if judge, described data transmission service does not have time limit requirement, then often after the first predetermined time interval, all again judge whether there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, until judge to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond; Described selected cell also for, when described second judging unit judges to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, in unappropriated running time-frequency resource, select the running time-frequency resource for the treatment of described data transmission service.

Mode two:

Described second judging unit also for, if judge, described data transmission service does not have time limit requirement, then often after the first predetermined time interval, all again judge whether there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, until judge that all occupied number of times of all running time-frequency resources in described preallocated running time-frequency resource pond reaches pre-determined number, or until not there is time limit requirement through second scheduled time at the described data transmission service of judgement; Described transmitting element also for, when all occupied number of times of all running time-frequency resources that described second judging unit judges in described preallocated running time-frequency resource pond reaches pre-determined number, or described second judging unit judge described data transmission service do not have the time limit require after after second scheduled time, send resource request instruction to described base station, distribute new running time-frequency resource pond or the resource pool indicating other to configure to make described base station when receiving the instruction of described resource request or distribute special running time-frequency resource.

In technique scheme, preferably, described detecting unit comprises: determining unit, and the broadcast signaling for sending according to other D2D terminals described determines that other D2D terminals described are link terminal or ordinary terminal; First performance element, during for determining that in described determining unit other D2D terminals described are link terminals, detects the resource scheduling information that described link terminal sends, to determine the running time-frequency resource taken by the D2D terminal that described link terminal is dispatched; Second performance element, during for determining that in described determining unit other D2D terminals described are ordinary terminals, detects the resource scheduling information that described ordinary terminal sends, to determine the running time-frequency resource that described ordinary terminal has taken.

According to a third aspect of the invention we, also proposed a kind of terminal, comprising: the resource configuration system for the direct-connected communication of terminal being applicable to terminal as described in above-mentioned any one technical scheme.

According to a forth aspect of the invention, also proposed a kind of resource allocation method for the direct-connected communication of terminal being applicable to base station, comprising: receive the resource request instruction that arbitrary D2D terminal sends; Indicate according to described resource request, to the running time-frequency resource pond that described arbitrary D2D terminal distribution is new, or indicate described arbitrary D2D terminal to use other running time-frequency resource ponds configured, or to the special running time-frequency resource of described arbitrary D2D terminal distribution; When being broadcasted described new running time-frequency resource pond by broadcast signaling, or when being indicated described arbitrary D2D terminal use other running time-frequency resource ponds described or use described special running time-frequency resource by indication information, in described broadcast signaling or described indication information, increase identification information, preferentially use described new running time-frequency resource pond or other running time-frequency resource ponds described or described special running time-frequency resource to indicate described arbitrary D2D terminal.

In this technical scheme, if receive the resource request instruction that arbitrary D2D terminal sends, then illustrate that the running time-frequency resource in preallocated running time-frequency resource pond is all occupied, in order to realize the data transmission service of D2D terminal, can to the new running time-frequency resource pond of D2D terminal distribution, or indicate this D2D terminal to use other running time-frequency resource ponds configured, or distribute special running time-frequency resource, to solve the problem of running time-frequency resource deficiency; And by increasing identification information in broadcast signaling or indication information, to indicate D2D terminal preferentially to use the new running time-frequency resource pond of distribution or other above-mentioned running time-frequency resource ponds or special running time-frequency resource, the D2D terminal making it possible to guarantee to send resource request instruction preferentially uses running time-frequency resource deal with data transport service.

In technique scheme, preferably, described broadcast signaling or described indication information comprise: RRC signaling, media access control unit signaling or the PC3 message between described D2D terminal and ProSe Function (network equipment).

In technique scheme, preferably, also comprise: the importance of D2D business handled by each described D2D terminal and the priority arrangement abnormalities running time-frequency resource pond of described D2D business, wherein, each described D2D terminal determine to need data transmission service to be processed have the time limit require and running time-frequency resource in preallocated running time-frequency resource pond is all occupied time, select the running time-frequency resource processing said data transport service in described abnormal running time-frequency resource pond.

According to a fifth aspect of the invention, also proposed a kind of resource configuration system for the direct-connected communication of terminal being applicable to base station, comprising: receiving element, for receiving the resource request instruction that arbitrary D2D terminal sends; First processing unit, for indicating according to described resource request, to the running time-frequency resource pond that described arbitrary D2D terminal distribution is new, or described arbitrary D2D terminal is indicated to use other running time-frequency resource ponds configured, or to the special running time-frequency resource of described arbitrary D2D terminal distribution; Second processing unit, for when being broadcasted described new running time-frequency resource pond by broadcast signaling, or when being indicated described arbitrary D2D terminal use other running time-frequency resource ponds described or use described special running time-frequency resource by indication information, in described broadcast signaling or described indication information, increase identification information, preferentially use described new running time-frequency resource pond or other running time-frequency resource ponds described or described special running time-frequency resource to indicate described arbitrary D2D terminal.

In technique scheme, preferably, described broadcast signaling or described indication information comprise: RRC signaling, media access control unit signaling or the PC3 message between described D2D terminal and ProSe Function.

In technique scheme, preferably, also comprise: dispensing unit, for the importance of D2D business handled by each described D2D terminal and the priority arrangement abnormalities running time-frequency resource pond of described D2D business, wherein, each described D2D terminal determine to need data transmission service to be processed have the time limit require and running time-frequency resource in preallocated running time-frequency resource pond is all occupied time, select the running time-frequency resource processing said data transport service in described abnormal running time-frequency resource pond.

According to a sixth aspect of the invention, also proposed a kind of base station, comprising: the resource configuration system for the direct-connected communication of terminal being applicable to base station as described in above-mentioned any one technical scheme.

By above technical scheme, make it possible to avoid the distribution of running time-frequency resource to occur the problem of conflicting, efficiently solve the partner selection when running time-frequency resource is inadequate simultaneously, achieve reasonable distribution and the use of resource.

Accompanying drawing explanation

Fig. 1 shows the schematic flow diagram of the resource allocation method for the direct-connected communication of terminal being applicable to terminal according to an embodiment of the invention;

Fig. 2 shows the schematic block diagram of the resource configuration system for the direct-connected communication of terminal being applicable to terminal according to an embodiment of the invention;

Fig. 3 shows the schematic flow diagram of the resource allocation method for the direct-connected communication of terminal being applicable to base station according to an embodiment of the invention;

Fig. 4 shows the schematic block diagram of the resource configuration system for the direct-connected communication of terminal being applicable to base station according to an embodiment of the invention;

Fig. 5 shows according to an embodiment of the invention for the schematic flow diagram of the resource allocation method of D2D communication;

Fig. 6 shows Signalling exchange schematic diagram according to an embodiment of the invention.

Embodiment

In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.

Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.

Fig. 1 shows the schematic flow diagram of the resource allocation method for the direct-connected communication of terminal being applicable to terminal according to an embodiment of the invention.

As shown in Figure 1, being applicable to the resource allocation method for the direct-connected communication of terminal of terminal according to an embodiment of the invention, comprising: step 102, when determining to need to carry out data transmission service, detecting the running time-frequency resource that other D2D terminals have taken; Step 104, the running time-frequency resource taken according to other D2D terminals described and the attribute information of described data transmission service, select the running time-frequency resource for the treatment of described data transmission service.

Mode one:

Mode two:

In technique scheme, preferably, the step detecting the running time-frequency resource that other D2D terminals have taken specifically comprises: determine that other D2D terminals described are link terminal or ordinary terminal according to the broadcast signaling that other D2D terminals described send; When determining that other D2D terminals described are link terminals, detect the resource scheduling information that described link terminal sends, to determine the running time-frequency resource taken by the D2D terminal that described link terminal is dispatched; And when determining that other D2D terminals described are ordinary terminals, detect the resource scheduling information that described ordinary terminal sends, to determine the running time-frequency resource that described ordinary terminal has taken.

Fig. 2 shows the schematic block diagram of the resource configuration system for the direct-connected communication of terminal being applicable to terminal according to an embodiment of the invention.

As shown in Figure 2, be applicable to the resource configuration system 200 for the direct-connected communication of terminal of terminal according to an embodiment of the invention, comprise: detecting unit 202 and processing unit 204.

Wherein, detecting unit 202, for when determining to need to carry out data transmission service, detects the running time-frequency resource that other D2D terminals have taken;

Processing unit 204, for the attribute information of the running time-frequency resource that taken according to other D2D terminals described and described data transmission service, selects the running time-frequency resource for the treatment of described data transmission service.

In technique scheme, preferably, described processing unit 204 comprises: the first judging unit 2042, for the running time-frequency resource taken according to other D2D terminals described, judges whether there is unappropriated running time-frequency resource in preallocated running time-frequency resource pond, base station; Selected cell 2044, during for judging to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond at described first judging unit 2042, selects the running time-frequency resource for the treatment of described data transmission service in described unappropriated running time-frequency resource.

In technique scheme, preferably, described processing unit 204 also comprises: the second judging unit 2046, during for judging that at described first judging unit 2042 all running time-frequency resources in described preallocated running time-frequency resource pond are all occupied, judge whether described data transmission service has time limit requirement according to the attribute information of described data transmission service; Transmitting element 2048, during for judging that at described second judging unit 2046 described data transmission service has time limit requirement, resource scheduling request is sent, with the running time-frequency resource of configuration mode distribution for the treatment of described data transmission service of asking described base station to adopt directly scheduling running time-frequency resource to base station; Or

Described selected cell 2044 also for, described second judging unit 2046 judge described data transmission service have the time limit require time, from the abnormal running time-frequency resource pond that described base station configures, select the running time-frequency resource for the treatment of described data transmission service.

Mode one:

Described second judging unit 2046 also for, if judge, described data transmission service does not have time limit requirement, then often after the first predetermined time interval, all again judge whether there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, until judge to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond; Described selected cell 2044 also for, when described second judging unit 2046 judges to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, in unappropriated running time-frequency resource, select the running time-frequency resource for the treatment of described data transmission service.

Mode two:

Described second judging unit 2046 also for, if judge, described data transmission service does not have time limit requirement, then often after the first predetermined time interval, all again judge whether there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, until judge that all occupied number of times of all running time-frequency resources in described preallocated running time-frequency resource pond reaches pre-determined number, or until not there is time limit requirement through second scheduled time at the described data transmission service of judgement; Described transmitting element 2048 also for, when all occupied number of times of all running time-frequency resources that described second judging unit 2046 judges in described preallocated running time-frequency resource pond reaches pre-determined number, or described second judging unit 2046 judge described data transmission service do not have the time limit require after after second scheduled time, send resource request instruction to described base station, distribute new running time-frequency resource pond or the resource pool indicating other to configure to make described base station when receiving the instruction of described resource request or distribute special running time-frequency resource.

In technique scheme, preferably, described detecting unit 202 comprises: determining unit 2022, and the broadcast signaling for sending according to other D2D terminals described determines that other D2D terminals described are link terminal or ordinary terminal; First performance element 2024, during for determining that in described determining unit 2022 other D2D terminals described are link terminals, detects the resource scheduling information that described link terminal sends, to determine the running time-frequency resource taken by the D2D terminal that described link terminal is dispatched; Second performance element 2026, during for determining that in described determining unit 2022 other D2D terminals described are ordinary terminals, detects the resource scheduling information that described ordinary terminal sends, to determine the running time-frequency resource that described ordinary terminal has taken.

The invention allows for a kind of terminal (not shown), comprising: the resource configuration system 200 for the direct-connected communication of terminal being applicable to terminal as shown in Figure 2.

Fig. 3 shows the schematic flow diagram of the resource allocation method for the direct-connected communication of terminal being applicable to base station according to an embodiment of the invention.

As shown in Figure 3, be applicable to the resource allocation method for the direct-connected communication of terminal of base station according to an embodiment of the invention, comprise: step 302, receive the resource request instruction that arbitrary D2D terminal sends; Step 304, indicates according to described resource request, to the running time-frequency resource pond that described arbitrary D2D terminal distribution is new, or indicates described arbitrary D2D terminal to use other running time-frequency resource ponds configured, or to the special running time-frequency resource of described arbitrary D2D terminal distribution; Step 306, when being broadcasted described new running time-frequency resource pond by broadcast signaling, or when being indicated described arbitrary D2D terminal use other running time-frequency resource ponds described or use described special running time-frequency resource by indication information, in described broadcast signaling or described indication information, increase identification information, preferentially use described new running time-frequency resource pond or other running time-frequency resource ponds described or described special running time-frequency resource to indicate described arbitrary D2D terminal.

Fig. 4 shows the schematic block diagram of the resource configuration system for the direct-connected communication of terminal being applicable to base station according to an embodiment of the invention.

As shown in Figure 4, be applicable to the resource configuration system 400 for the direct-connected communication of terminal of base station according to an embodiment of the invention, comprise: receiving element 402, first processing unit 404 and the second processing unit 406.

Wherein, receiving element 402, for receiving the resource request instruction that arbitrary D2D terminal sends;

First processing unit 404, for indicating according to described resource request, to the running time-frequency resource pond that described arbitrary D2D terminal distribution is new, or described arbitrary D2D terminal is indicated to use other running time-frequency resource ponds configured, or to the special running time-frequency resource of described arbitrary D2D terminal distribution;

Second processing unit 406, for when being broadcasted described new running time-frequency resource pond by broadcast signaling, or when being indicated described arbitrary D2D terminal use other running time-frequency resource ponds described or use described special running time-frequency resource by indication information, in described broadcast signaling or described indication information, increase identification information, preferentially use described new running time-frequency resource pond or other running time-frequency resource ponds described or described special running time-frequency resource to indicate described arbitrary D2D terminal.

In technique scheme, preferably, also comprise: dispensing unit 408, for the importance of D2D business handled by each described D2D terminal and the priority arrangement abnormalities running time-frequency resource pond of described D2D business, wherein, each described D2D terminal determine to need data transmission service to be processed have the time limit require and running time-frequency resource in preallocated running time-frequency resource pond is all occupied time, select the running time-frequency resource processing said data transport service in described abnormal running time-frequency resource pond.

The invention allows for a kind of base station (not shown), comprising: the resource configuration system 400 for the direct-connected communication of terminal being applicable to base station as shown in Figure 4.

Technical scheme of the present invention is described in detail below in conjunction with Fig. 5 and Fig. 6.

No matter technical scheme of the present invention, mainly in order to solve the conflict of Resourse Distribute when Mode B and the problem of inadequate resource, is non-relay or the technical scheme that has relay case all can use the present invention to propose.

Technical scheme of the present invention introduces a hypothesis, namely needs the mechanism that introducing UE monitors to other UE in particular range the use of resource in resource pool/measures.Wherein a kind of implementation method (but being not limited to the method) is monitored the schedulingassignment (schedule job) that other D2D UE send by UE.

Above-mentioned monitoring and measurement scheme, if under non-relay scene, the resource service condition of other UE near UE just monitors; If under relay case, if via node assume responsibility for the resource allocation function of cluster UE, then UE can go the resource allocation conditions of monitoring via node.Specifically, via node (i.e. link terminal) is if assume responsibility for the function into multiple UE Resources allocation, then via node is sent as the schedule information of multiple terminal distribution time/frequency source block.And need the D2D terminal of carrying out data transmission service, when determining the resource service condition of other D2D terminals, need whether the D2D terminal distinguishing periphery is via node, if via node, then can monitor and receive the message that via node sends, thus know the running time-frequency resource service condition of the other-end that this via node controls.Via node to some extent solves the resource conflict problem of D2D terminal by this mechanism.

It should be noted that, via node is distributed to also can space division multiplexing by the running time-frequency resource of link terminal.Therefore, with regard to via node, the mode of its B in mode obtains resource pool from base station, but concerning by the UE of relaying, is that the mode of A in mode obtains scheduling resource from via node.Also it should be noted that, this mechanism requires that via node is known by the existence of relaying UE, namely possibly by carrying out D2D discovery mechanism or other are known alternately by the information of relaying UE.

The present invention supposes that base station can communicate with the D2D of Mode B by support mode A with terminal simultaneously.

Based on above-mentioned hypothesis, the scheme that the present invention proposes is as follows.UE needs before the task of being about to data transmission, monitors the resource that other D2D transmission UE has employed, comprises particularly:

(1) if detect, first other UE are in this resource of use, then consider whether there are other untapped resources, if had, then directly uses or use after wait special time.

(2) if do not have untapped resource, then UE needs to judge that data send with or without time limit requirement.Wherein, D2D data, with or without time limit requirement, depend on the type of service of ProSe application layer, and UE is to the judgement required with or without the time limit here, can judge according to this type of service.

Specifically:

If A does not have time limit requirement, then again judge after can considering to postpone a period of time that whether other UE are still in transmission data.

A, in this case, UE probably successfully monitor idle resource when next time attempts, its reason may be due to mobile and with other UE away from, also may be that the D2D data that other UE stopped Mode B send.In this case, need in spec, introduce trial time or number of times, with still unsuccessful transmission D2D data after avoiding repeatedly attempting.This time or number of times may need to define in relevant spec.

B, UE also still may cannot obtain idling-resource upon to many attempts, then in this case, UE needs to send instruction (indication) to base station.Base station is after receiving instruction, the resource pool that other can be used to be configured by the new resource pool of broadcast or instruction UE, to meet the communication requirement of UE, or directly for sending the private resource (dedicatedresource) of the UE distribution of indication.In this case, need in spec, define the next reason to the request of base station (eNB) specified resource of message.Meanwhile, the signaling that eNB reconfigures resource also needs to strengthen, so that the resource pool of reshuffling preferentially can be obtained by specific UE, as in resource pool, instruction is specifically designed to such UE etc.This message can be the PC3 message between MAC, RRC or UE and ProSe Function.

If B has time limit requirement, then UE can adopt in two ways, and one is the scheduling resource directly to eNB request mode A, thus directly sends data; Two is utilize abnormal resource pond to carry out the transmission of D2D data.In this case, need in spec, define the next reason to the request of eNB specified resource of message, require it is singly Mode B inadequate resource if any the time limit.This message can be the PC3 message between MAC, RRC or UE and ProSe Function.

Above process can refer to shown in Fig. 5.

As shown in Figure 5, according to an embodiment of the invention for the resource allocation method of D2D communication, comprising:

Step 502, UE has data to send demand, and initially determines that communication pattern is Mode B.

Step 504, whether monitoring has available Mode B resource.

Step 506, has judged whether that Mode B resource can be used, and if so, then performs step 518; Otherwise, perform step 508.

Step 508, when judging do not have Mode B resource available, judging data send whether there is time limit requirement, if having, then performing step 514; Otherwise, perform step 510.

Step 510, when decision data transmission required without the time limit, continues monitoring after postponing certain hour.

Step 512, judges whether monitoring number of times or monitoring time transfinite, if so, then performs step 514; Otherwise, perform step 504.

Step 514, UE sends resource request to base station (eNB).

Step 516, judges the whether successful Gains resources configuration of UE, if so, then performs step 518.

Step 518, carries out data transmission.

It should be noted that, the operation that UE carries out for there being the time limit to require, needing within the scope of network permission.Specifically, when UE is inadequate in discovery mode B resource, and retry repeatedly unsuccessful after, send request to eNB, eNB judges whether can the private resource of allocation model B resource pool or Mode A again, needs according to this UE at the signing of network side storing and authorization message and the policy (strategy) that derives therefrom.According to the difference of the execution of these policy, the operation of eNB described above also can be realized by the ProSe Function being positioned at network side.

A signaling process figure of the present invention is described in detail below in conjunction with Fig. 6.

As shown in Figure 6, D2D sends UE1 when determining that data send demand, judge whether available Mode B resource, there is no available Mode B resource if determine and obtain send opportunity not yet after special time or number of times are attempted, or data send when having the time limit to require, perform step 602, namely resource request is sent to eNB or ProSe Function, and show the reason of request, when sending resource request, by sending MAC signaling or RRC signaling to eNB, also can send PC3 signaling to ProSeFunction.

Then base station or ProSe Function carry out Resourse Distribute, and perform step 604, and namely eNB is by sending MAC signaling or RRC signaling by the resource notification of distributing to UE, or by ProSeFunction by sending PC3 signaling by the resource notification of distributing to UE.

The UE that such scheme of the present invention makes Land use models B shared resource pond communicate can carry out rational Resourse Distribute, to meet the D2D communication of different business requirement.

More than be described with reference to the accompanying drawings technical scheme of the present invention, the present invention proposes a kind of resource allocation proposal for the direct-connected communication of terminal newly, make it possible to avoid the distribution of running time-frequency resource to occur the problem of conflicting, efficiently solve the partner selection when running time-frequency resource is inadequate simultaneously, achieve reasonable distribution and the use of resource.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. for a resource allocation method for the direct-connected communication of terminal, be applicable to terminal, it is characterized in that, comprising:

When determining to need to carry out data transmission service, detect the running time-frequency resource that other D2D terminals have taken;

The running time-frequency resource taken according to other D2D terminals described and the attribute information of described data transmission service, select the running time-frequency resource for the treatment of described data transmission service.

2. the resource allocation method for the direct-connected communication of terminal according to claim 1, is characterized in that, selects the step of the running time-frequency resource for the treatment of described data transmission service specifically to comprise:

According to the running time-frequency resource that other D2D terminals described have taken, judge whether there is unappropriated running time-frequency resource in preallocated running time-frequency resource pond, base station;

When judging to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, in described unappropriated running time-frequency resource, select the running time-frequency resource for the treatment of described data transmission service.

3. the resource allocation method for the direct-connected communication of terminal according to claim 2, is characterized in that, also comprise:

When judging that all running time-frequency resources in described preallocated running time-frequency resource pond are all occupied, judge whether described data transmission service has time limit requirement according to the attribute information of described data transmission service;

If judge, described data transmission service has time limit requirement, then send resource scheduling request to base station, with the running time-frequency resource of configuration mode distribution for the treatment of described data transmission service of asking described base station to adopt directly scheduling running time-frequency resource, or

4. the resource allocation method for the direct-connected communication of terminal according to claim 3, is characterized in that, also comprise:

If judge, described data transmission service does not have time limit requirement, then often after the first predetermined time interval, all again judge whether there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, until when judging to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, select the running time-frequency resource for the treatment of described data transmission service in unappropriated running time-frequency resource.

5. the resource allocation method for the direct-connected communication of terminal according to claim 3, is characterized in that, also comprise:

If judge, described data transmission service does not have time limit requirement, then often after the first predetermined time interval, all again judge whether there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, until when all occupied number of times of all running time-frequency resources judging in described preallocated running time-frequency resource pond reaches pre-determined number, or until not there is time limit requirement after second scheduled time at the described data transmission service of judgement, resource request instruction is sent to described base station, new running time-frequency resource pond is distributed when receiving the instruction of described resource request to make described base station, or the resource pool indicating other to configure, or distribute special running time-frequency resource.

6. the resource allocation method for the direct-connected communication of terminal according to any one of claim 1 to 5, is characterized in that, the step detecting the running time-frequency resource that other D2D terminals have taken specifically comprises:

Determine that other D2D terminals described are link terminal or ordinary terminal according to the broadcast signaling that other D2D terminals described send;

When determining that other D2D terminals described are link terminals, detect the resource scheduling information that described link terminal sends, to determine the running time-frequency resource taken by the D2D terminal that described link terminal is dispatched; And

When determining that other D2D terminals described are ordinary terminals, detect the resource scheduling information that described ordinary terminal sends, to determine the running time-frequency resource that described ordinary terminal has taken.

7. for a resource allocation method for the direct-connected communication of terminal, be applicable to base station, it is characterized in that, comprising:

Receive the resource request instruction that arbitrary D2D terminal sends;

Indicate according to described resource request, to the running time-frequency resource pond that described arbitrary D2D terminal distribution is new, or indicate described arbitrary D2D terminal to use other running time-frequency resource ponds configured, or to the special running time-frequency resource of described arbitrary D2D terminal distribution;

When being broadcasted described new running time-frequency resource pond by broadcast signaling, or when being indicated described arbitrary D2D terminal use other running time-frequency resource ponds described or use described special running time-frequency resource by indication information, in described broadcast signaling or described indication information, increase identification information, preferentially use described new running time-frequency resource pond or other running time-frequency resource ponds described or described special running time-frequency resource to indicate described arbitrary D2D terminal.

8. the resource allocation method for the direct-connected communication of terminal according to claim 7, is characterized in that, described broadcast signaling or described indication information comprise:

RRC signaling, media access control unit signaling or the PC3 message between described D2D terminal and ProSe Function.

9. the resource allocation method for the direct-connected communication of terminal according to claim 7 or 8, is characterized in that, also comprise:

The importance of D2D business handled by each described D2D terminal and the priority arrangement abnormalities running time-frequency resource pond of described D2D business,

Wherein, each described D2D terminal determine to need data transmission service to be processed have the time limit require and running time-frequency resource in preallocated running time-frequency resource pond is all occupied time, select the running time-frequency resource processing said data transport service in described abnormal running time-frequency resource pond.

10. for a resource configuration system for the direct-connected communication of terminal, be applicable to terminal, it is characterized in that, comprising:

Detecting unit, for when determining to need to carry out data transmission service, detects the running time-frequency resource that other D2D terminals have taken;

Processing unit, for the attribute information of the running time-frequency resource that taken according to other D2D terminals described and described data transmission service, selects the running time-frequency resource for the treatment of described data transmission service.

11. resource configuration systems for the direct-connected communication of terminal according to claim 10, it is characterized in that, described processing unit comprises:

First judging unit, for the running time-frequency resource taken according to other D2D terminals described, judges whether there is unappropriated running time-frequency resource in preallocated running time-frequency resource pond, base station;

Selected cell, for when described first judging unit judges to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, selects the running time-frequency resource for the treatment of described data transmission service in described unappropriated running time-frequency resource.

12. resource configuration systems for the direct-connected communication of terminal according to claim 11, it is characterized in that, described processing unit also comprises:

According to the attribute information of described data transmission service, second judging unit, when all running time-frequency resources for judging in described preallocated running time-frequency resource pond at described first judging unit are all occupied, judges whether described data transmission service has time limit requirement;

Transmitting element, during for judging that at described second judging unit described data transmission service has time limit requirement, resource scheduling request is sent, with the running time-frequency resource of configuration mode distribution for the treatment of described data transmission service of asking described base station to adopt directly scheduling running time-frequency resource to base station; Or

13. resource configuration systems for the direct-connected communication of terminal according to claim 12, is characterized in that:

Described second judging unit also for, if judge, described data transmission service does not have time limit requirement, then often after the first predetermined time interval, all again judge whether there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, until judge to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond;

Described selected cell also for, when described second judging unit judges to there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, in unappropriated running time-frequency resource, select the running time-frequency resource for the treatment of described data transmission service.

14. resource configuration systems for the direct-connected communication of terminal according to claim 12, is characterized in that:

Described second judging unit also for, if judge, described data transmission service does not have time limit requirement, then often after the first predetermined time interval, all again judge whether there is unappropriated running time-frequency resource in described preallocated running time-frequency resource pond, until judge that all occupied number of times of all running time-frequency resources in described preallocated running time-frequency resource pond reaches pre-determined number, or until not there is time limit requirement through second scheduled time at the described data transmission service of judgement;

Described transmitting element also for, when all occupied number of times of all running time-frequency resources that described second judging unit judges in described preallocated running time-frequency resource pond reaches pre-determined number, or described second judging unit judge described data transmission service do not have the time limit require after after second scheduled time, send resource request instruction to described base station, distribute new running time-frequency resource pond or the resource pool indicating other to configure to make described base station when receiving the instruction of described resource request or distribute special running time-frequency resource.

15., according to claim 10 to the resource configuration system for the direct-connected communication of terminal according to any one of 14, is characterized in that, described detecting unit comprises:

Determining unit, the broadcast signaling for sending according to other D2D terminals described determines that other D2D terminals described are link terminal or ordinary terminal;

First performance element, during for determining that in described determining unit other D2D terminals described are link terminals, detects the resource scheduling information that described link terminal sends, to determine the running time-frequency resource taken by the D2D terminal that described link terminal is dispatched;

Second performance element, during for determining that in described determining unit other D2D terminals described are ordinary terminals, detects the resource scheduling information that described ordinary terminal sends, to determine the running time-frequency resource that described ordinary terminal has taken.

16. 1 kinds of terminals, is characterized in that, comprising: the resource configuration system for the direct-connected communication of terminal according to any one of claim 10 to 15.

17. 1 kinds for the resource configuration system of the direct-connected communication of terminal, are applicable to base station, it is characterized in that, comprising:

Receiving element, for receiving the resource request instruction that arbitrary D2D terminal sends;

First processing unit, for indicating according to described resource request, to the running time-frequency resource pond that described arbitrary D2D terminal distribution is new, or described arbitrary D2D terminal is indicated to use other running time-frequency resource ponds configured, or to the special running time-frequency resource of described arbitrary D2D terminal distribution;

Second processing unit, for when being broadcasted described new running time-frequency resource pond by broadcast signaling, or when being indicated described arbitrary D2D terminal use other running time-frequency resource ponds described or use described special running time-frequency resource by indication information, in described broadcast signaling or described indication information, increase identification information, preferentially use described new running time-frequency resource pond or other running time-frequency resource ponds described or described special running time-frequency resource to indicate described arbitrary D2D terminal.

18. resource configuration systems for the direct-connected communication of terminal according to claim 17, is characterized in that, described broadcast signaling or described indication information comprise:

19. resource configuration systems for the direct-connected communication of terminal according to claim 17 or 18, is characterized in that, also comprise:

Dispensing unit, for the importance of D2D business handled by each described D2D terminal and the priority arrangement abnormalities running time-frequency resource pond of described D2D business,

20. 1 kinds of base stations, is characterized in that, comprising: the resource configuration system for the direct-connected communication of terminal according to any one of claim 17 to 19.