Summary of the invention
For in correlation technique because UE causes D2D signal cannot the technical problem of normal transmission in net situation difference, the present invention proposes a kind of resource allocation methods for D2D Signal transmissions and device and defining method and device and defining method and device, the efficient switching that D2D finds resource allocation mode can be realized, thus contribute to allowing UE adopt the resource allocation mode being applicable to present case, and promote the communication performance of D2D and common Cellular Networks.
Technical scheme of the present invention is achieved in that
According to an aspect of the present invention, a kind of resource allocation methods for D2D Signal transmissions is provided.
This resource allocation methods comprises: determine the user equipment (UE) in D2D communication set in net situation; According to determine in net situation, supplementary is sent to UE, wherein, supplementary comprise following one of at least:
Whether the UE in D2D communication set is all in the instruction of net;
Be used to indicate the indication information that UE transmits the resource pool that D2D signal uses.
Wherein, comprising in net situation of the user equipment (UE) in D2D communication set is determined:
Obtain the user profile of D2D communication set, based on the user profile obtained determine user in D2D communication set in net situation.
In addition, if the UE in D2D communication set is all at net, then the supplementary sent comprises UE in D2D communication set all in the instruction of net and/or be used to indicate the indication information that UE uses the resource pool transmission D2D signal of network configuration.
In addition, if at least part of UE in D2D communication set is not at net, then comprise UE in D2D communication set in the supplementary sent and not all net instruction and/or be used to indicate UE and use predefined resource pool to transmit the indication information of D2D signal.
According to a further aspect in the invention, a kind of resource determining method for D2D Signal transmissions is provided.
This resource determining method comprises: receive supplementary, wherein, supplementary comprise following one of at least: whether the UE in D2D communication set all in the instruction of net; Be used to indicate the indication information that UE transmits the resource pool that D2D signal uses; According to the supplementary received, determine the resource pool that transmission D2D signal uses.
And, when determining the resource pool that transmission D2D signal uses, if the supplementary received comprises UE in D2D communication set all in the instruction of net and/or be used to indicate UE and use the indication information being transmitted D2D signal by the resource pool of network configuration, then determine to use and transmit D2D signal by the resource pool of network configuration.
In addition, the method may further include: receive control signal, determines the resource pool indicated by network side according to the control signal received; Further, when determining the resource pool that transmission D2D signal uses, if the supplementary received comprises the instruction that the UE in D2D communication set is all netting, then determine to use the resource pool transmission D2D signal determined according to control signal.
In addition, when determining the resource pool that transmission D2D signal uses, if the supplementary received comprise UE in D2D communication set and not all net instruction and/or be used to indicate UE and use predefined resource pool to transmit the indication information of D2D signal, then determine to use predefined resource pool to transmit D2D signal.
In accordance with a further aspect of the present invention, a kind of resource allocation device for D2D Signal transmissions is provided.
This resource allocation device comprises:
Determination module, for determine user equipment (UE) in D2D communication set in net situation;
Sending module, for according to determine in net situation, supplementary is sent to UE, wherein, supplementary comprise following one of at least:
Whether the UE in D2D communication set is all in the instruction of net;
Be used to indicate the indication information that UE transmits the resource pool that D2D uses.
Wherein, determine the UE in D2D communication set in net situation time, determination module for obtaining the user profile of D2D communication set, based on the user profile obtained determine user in D2D communication set in net situation.
In addition, if the UE in D2D communication set is all at net, then the supplementary that sending module sends comprises UE in D2D communication set all in the instruction of net and/or be used to indicate the indication information that UE uses the resource pool transmission D2D signal of network configuration.
In addition, if at least part of UE in D2D communication set is not at net, then comprise UE in D2D communication set in the supplementary that sending module sends and not all net instruction and/or be used to indicate UE and use predefined resource pool to transmit the indication information of D2D signal.
According to a further aspect in the invention, a kind of resource determining device for D2D Signal transmissions is additionally provided.
This resource determining device comprises:
Receiver module, for receiving supplementary, wherein, supplementary comprise following one of at least: whether the UE in D2D communication set all in the instruction of net; Be used to indicate the indication information that UE transmits the resource pool that D2D signal uses;
Determination module, for according to the supplementary received, determines the resource pool that transmission D2D signal uses.
Wherein, when determining the resource pool that transmission D2D signal uses, if the supplementary that receiver module receives comprises UE in D2D communication set all in the instruction of net and/or be used to indicate UE and use the indication information being transmitted D2D signal by the resource pool of network configuration, then determination module is determined to use and is transmitted D2D signal by the resource pool of network configuration.
In addition, receiver module, also for receiving control signal, determines the resource pool indicated by network side according to the control signal received;
Further, when determining the resource pool that transmission D2D signal uses, if the supplementary that receiver module receives comprises the instruction that the UE in D2D communication set is all netting, then determination module is determined to use the resource pool transmission D2D signal determined according to control signal.
In addition, when determining the resource pool that transmission D2D signal uses, if the supplementary that receiver module receives comprise UE in D2D communication set and not all net instruction and/or be used to indicate UE and use predefined resource pool to transmit the indication information of D2D signal, then determination module is determined to use predefined resource pool to transmit D2D signal.
The present invention is by being sent to UE by base station by supplementary, thus according to UE in current D2D communication set at net things to know at the resource pool that uses of net UE, thus contribute to ensureing net UE with do not use resource transmission D2D signal in identical resource pool netting UE, ensure that the normal transmission of D2D signal, improve allocation efficiency of resource, improve D2D communication performance.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of protection of the invention.
According to an aspect of the present invention, provide a kind of resource allocation methods for D2D Signal transmissions, the method can be applicable to network side, such as, base station can be applied to, UE(can be informed at net UE by needing the resource pool that in D2D communication set, UE will use), allow at net UE and do not use the resource transmission D2D signal in same asset pond (D2D signal herein includes but not limited to that D2D finds signal and/or D2D signal of communication etc.) at the UE of net.
As shown in Figure 3, resource allocation methods comprises:
Step S301, determine the user equipment (UE) in D2D communication set in net situation;
Step S303, according to determine in net situation, supplementary is sent to UE, wherein, supplementary comprise following one of at least:
Whether the UE in D2D communication set is all in the instruction of net;
Be used to indicate the indication information that UE transmits the resource pool that D2D signal uses.
Wherein, resource pool indicated by above-mentioned indication information can be configure to the resource pool of UE by network side, also can be that (this predefined resource pool can be carry out definition to UE in advance to obtain to predefined resource pool, but not in practical communication process by network configuration to the resource pool of UE, this predefined resource pool can be understood to be in the UE not default resource pond that uses when netting).
Wherein, determine the user equipment (UE) in D2D communication set in net situation time, the user profile of D2D communication set can be obtained, based on the user profile obtained determine user in D2D communication set in net situation.
In addition, if the UE in D2D communication set is all at net, the supplementary then sent comprises UE in D2D communication set all in the instruction of net and/or be used to indicate the indication information that UE uses the resource pool transmission D2D signal of network configuration, alternatively, the resource in the resource pool of indication network configuration can also be further used in this indication information.Generally, if comprise in supplementary UE in D2D communication set all in the instruction of net, be used to indicate one that UE uses in the indication information of the resource pool transmission D2D signal of network configuration, just can normally work.
In addition, if at least part of UE in D2D communication set is not at net, then comprise UE in D2D communication set in the supplementary sent and not all net instruction and/or be used to indicate UE and use predefined resource pool to transmit the indication information of D2D signal.
Therefore, in specific implementation process of the present invention, can according to the following mode enumerated to realize Resourse Distribute.In one embodiment, if all UE in D2D communication set are all at net, then all UE all can be sent to UE in this instruction of net by supplementary, and then supply UE to select the resource pool configured by network side.
In one embodiment, if all UE in D2D communication set are all at net, the resource pool used can be needed to be indicated to all UE in group the UE in D2D communication set by supplementary, and be informed the resource specifically comprised in this resource pool of UE by supplementary.
In one embodiment, if all UE in D2D communication set are all at net, the resource pool used can be needed to be indicated to all UE in group the UE in D2D communication set by supplementary, the resource specifically comprised in this resource pool then can inform all UE in group by other signalings (such as control signal).
In one embodiment, if all UE in D2D communication set are all at net, the resource pool configured by network side should be able to be used to carry out this message notice of D2D Signal transmissions to all UE in group the UE in D2D communication set by supplementary, the concrete resource comprised in this resource pool then informs all UE in group by other signalings (such as control signal) beyond supplementary.
In one embodiment, if the part UE in D2D communication set is not at net, then only can comprise the instruction of part UE at net in supplementary, and then notice needs to use predefined resource pool at the UE of net.
In one embodiment, if the part UE in D2D communication set is not at net, then can only comprise in supplementary for notifying that UE uses the instruction of predefined resource pool.
Embodiment cited is above only the partial picture that the present invention realizes, and its object is to implementation of the present invention is described, and non-limiting protection scope of the present invention.
According to embodiments of the invention, additionally provide a kind of resource determining method for D2D Signal transmissions, the method can be applicable to UE side, determines required resource pool for UE.
As shown in Figure 4, comprise according to the resource determining method of the embodiment of the present invention:
Step S401, receives supplementary, wherein, supplementary comprise following one of at least: whether the UE in D2D communication set all in the instruction of net; Be used to indicate the indication information that UE transmits the resource pool that D2D signal uses;
Step S403, according to the supplementary received, determines the resource pool that transmission D2D signal uses.
And, when determining the resource pool that transmission D2D signal uses, if the supplementary received comprises UE in D2D communication set all in the instruction of net and/or be used to indicate UE and use the indication information being transmitted D2D signal by the resource pool of network configuration, then determine to use and transmit D2D signal by the resource pool of network configuration.
In addition, the method may further include: receive control signal, determines the resource pool (that is, network side configures to the resource pool of UE) configured by network side according to the control signal received; Further, when determining the resource pool that transmission D2D signal uses, if the supplementary received comprises the instruction that the UE in D2D communication set is all netting, then determine to use the resource pool transmission D2D signal determined according to control signal.
In addition, when determining the resource pool that transmission D2D signal uses, if the supplementary received comprise UE in D2D communication set and not all net instruction and/or be used to indicate UE and use predefined resource pool to transmit the indication information of D2D signal, then determine to use predefined resource pool to transmit D2D signal.
In one embodiment, if the supplementary that UE receives only comprises the instruction that in D2D communication set, all UE are all netting, then determine to need to use the resource pool of network side configuration to carry out the transmission of D2D signal, which resource of concrete employing can be known by monitoring other channels (such as, by receiving control signal).
In one embodiment, if the supplementary that UE receives comprises the indication information that instruction UE uses the resource pool of network configuration, and this supplementary indicates the concrete resource in this resource pool further, then illustrate that UE in D2D communication set all can know this resource group at net, now determine to adopt the resource pool indicated by this supplementary to carry out the transmission of D2D signal.
In one embodiment, if the supplementary that UE receives only comprises part UE in D2D communication set then determine to adopt predefined resource pool to carry out the transmission of D2D signal not in the instruction of net.
In one embodiment, if the supplementary that UE receives only comprises and is used to indicate UE and adopts predefined resource pool to carry out the indication information of D2D Signal transmissions, then declaratives UE may be in not in the state of net, and the resource pool of network side configuration cannot be received, now, in all groups, UE can adopt predefined resource pool to transmit D2D signal, ensure that the normal transmission of D2D signal.
Embodiment cited is above only the partial picture that the present invention realizes, and its object is to implementation of the present invention is described, and non-limiting protection scope of the present invention.
By above-mentioned process of the present invention, UE(such as, in D2D communication set at net UE) obtain supplementary from network, and the resource pool selecting to adopt network side to configure based on supplementary or predefined resource pool.
If all UE in D2D communication set are all at net, then all UE all can know that network side configures to the resource pool of UE, and utilize the resource transmission D2D signal in this resource pool; And if fruit part UE is not at net, then cannot not know at the UE of net the resource pool that network side configures, be merely able to use predefined resource pool to carry out D2D Signal transmissions, and at net UE because know and not all UE all in this situation of net, therefore, predefined resource pool can be used based on this situation at net UE, thus ensure and do not use identical resource pool to carry out the transmission of D2D signal at the UE netted.
In an example, supplementary can be more specific, such as, supplementary can comprise following one of at least: the instruction of " whether the reception UE in D2D communication group all at net "; The resource allocation pond instruction that UE adopts.
Now, if the reception UE in supplementary instruction D2D communication group is at net, then the D2D in group sends UE can judge that in group, other UE can receive the resource pool of network configuration, thus can select the resource pool of network configuration; Otherwise UE should select predefined resource pool.
For D2D signal of communication, technical scheme of the present invention will be described below.It should be noted that the transmission for other D2D signals (such as, D2D finds signal), similar mode can be adopted equally to distribute and determine the resource that uses in transmitting procedure.
Embodiment 1:UE obtains supplementary " whether the reception UE in D2D communication group is at net " from network, and determines the resource pool that predefined resource or network should be adopted to configure according to described supplementary.
In the present embodiment, concrete treatment step is as follows:
(1) network obtains supplementary, and by signaled UE
(2) UE chooses the resource pool that should adopt according to supplementary
(3) UE carries out distributed resource selection in determined resource pool.
For step (1), because core-network side exists the D2D communication server (D2D server), this server preserves the user-dependent business information of D2D, such as, can comprise traffic performance and demand, service group's attaching information etc.When determining UE in net situation, base station can be asked to D2D server, and gets the user profile of certain D2D communication group from server, and judges that whether D2D users all in this group is at net based on this.Judge based on this, base station can obtain aforementioned auxiliary information.This supplementary can configure to UE with D2D resource pool simultaneously, also can configure separately.
For step (2), D2D under normal circumstances communication sends D2D message by some UE in group in the mode of broadcast or multicast to receive UE to other.And receive UE and can be divided into two kinds of situations to receiving the understanding of resource pool:
(situation one) some or all reception UE off-grid, cannot receive the D2D resource pool configuration of network, then can only use predefine resource pool;
(situation two) all reception UE, at net, can receive the resource pool of network configuration.
After UE receives this supplementary, D2D sends UE according to above-mentioned two situations, the resource pool selected predefined resource pool respectively or configure.
For above-mentioned steps (3), after UE determines the resource pool adopting predefine or network instruction, can start to carry out distributed resource selection in this resource pool.
As shown in Figure 5, specifically to select and to send the process of D2D signal as follows:
First, can pre-define resource pool to UE, this resource pool can be by network configuration to the resource pool of UE, also can be pre-define, for not net UE default resource pond;
Based on the resource pool of definition, when needs transmission D2D signal, UE can judge whether that resource is occupied;
If the resource of resource pool is occupied, needs to wait for and continue to monitor, that is, keep out of the way and continue scanning, if do not have occupied, can select in idling-resource and use resource.
In addition, other resource pools can be distributed by signaling in base station.For receiver side UE, if be in off-grid state, the resource pool that base station is distributed cannot be received.In order to ensure D2D communication (particularly the associated scenario of public safety), generally need at D2D UE inside all predefine resource pools.When sending UE uncertain reception UE whether all when netting, can select to select resource in predefined resource pool.
Some problems may be there are iff predefined resource pool, such as, if predefine resource pool is arranged in LTE frequency spectrum, because it does not support to reshuffle, D2D and the direct resource multiplex efficiency of normal LTE communication can be limited, more such as, if predefined D2D frequency spectrum is in another channel, and do not control by operator, then likely receive the restriction of the factors such as UE radio frequency realization, affect normal LTE communication.For this problem, the present invention can inform to UE by by the resource pool indicated by network side, thus all uses the resource pool of network instruction at the UE of net at UE.
Embodiment 2:UE obtains supplementary from network and " adopts the resource pool of predefine or network configuration ", and directly uses this resource pool to carry out resource selection.
The difference of this embodiment detailed process and embodiment 1 is, after network obtains supplementary from core net, judges that UE should adopt the resource pool of predefined resource pool or network side configuration first voluntarily, then this decision is directly indicated to UE.After UE receives instruction, carry out according to indicated resource pool the distributed resource be similar in the step (3) of embodiment 1 and select.
According to embodiments of the invention, additionally provide a kind of resource allocation device for D2D Signal transmissions.
As shown in Figure 6, comprise according to the resource allocation device of the embodiment of the present invention:
Determination module 61, for determine user equipment (UE) in D2D communication set in net situation;
Sending module 62, for according to determine in net situation, supplementary is sent to UE, wherein, supplementary comprise following one of at least:
Whether the UE in D2D communication set is all in the instruction of net;
Be used to indicate the indication information that UE transmits the resource pool that D2D uses.
Wherein, determine the UE in D2D communication set in net situation time, determination module 61 for obtaining the user profile of D2D communication set, based on the user profile obtained determine user in D2D communication set in net situation.
In addition, if the UE in D2D communication set is all at net, then the supplementary that sending module 62 sends comprises UE in D2D communication set all in the instruction of net and/or be used to indicate the indication information that UE uses the resource pool transmission D2D signal of network configuration.
In addition, if at least part of UE in D2D communication set is not at net, then comprise UE in D2D communication set in the supplementary that sending module 62 sends and not all net instruction and/or be used to indicate UE and use predefined resource pool to transmit the indication information of D2D signal.
According to embodiments of the invention, additionally provide a kind of resource determining device for D2D Signal transmissions.
As shown in Figure 7, this resource determining device comprises:
Receiver module 71, for receiving supplementary, wherein, supplementary comprise following one of at least: whether the UE in D2D communication set all in the instruction of net; Be used to indicate the indication information that UE transmits the resource pool that D2D signal uses;
Determination module 72, for according to the supplementary received, determines the resource pool that transmission D2D signal uses.
Wherein, when determining the resource pool that transmission D2D signal uses, if the supplementary that receiver module 71 receives comprises UE in D2D communication set all in the instruction of net and/or be used to indicate UE and use the indication information being transmitted D2D signal by the resource pool of network configuration, then determination module 72 is determined to use and is transmitted D2D signal by the resource pool of network configuration.
In addition, receiver module 71, also for receiving control signal, determines the resource pool indicated by network side according to the control signal received;
Further, when determining the resource pool that transmission D2D signal uses, if the supplementary that receiver module 71 receives comprises the instruction that the UE in D2D communication set is all netting, then determination module 72 is determined to use the resource pool transmission D2D signal determined according to control signal.
In addition, when determining the resource pool that transmission D2D signal uses, if the supplementary that receiver module 71 receives comprise UE in D2D communication set and not all net instruction and/or be used to indicate UE and use predefined resource pool to transmit the instruction of D2D signal, then determination module 72 is determined to use predefined resource pool to transmit D2D signal.
In sum, by means of technique scheme of the present invention, by supplementary being sent to UE by base station, thus according to UE in current D2D communication set at net things to know at the resource pool that uses of net UE, thus contribute to ensureing net UE with do not use resource transmission D2D signal in identical resource pool netting UE, ensure that the normal transmission of D2D signal, improve allocation efficiency of resource, improve D2D communication performance.
Below general principle of the present invention is described in conjunction with specific embodiments, but, it is to be noted, for those of ordinary skill in the art, whole or any step or the parts of method and apparatus of the present invention can be understood, can in the network of any calculation element (comprising processor, storage medium etc.) or calculation element, realized with hardware, firmware, software or their combination, this is that those of ordinary skill in the art use their basic programming skill just can realize when having read explanation of the present invention.
Therefore, object of the present invention can also be realized by an operation program or batch processing on any calculation element.Described calculation element can be known fexible unit.Therefore, object of the present invention also can realize only by the program product of providing package containing the program code realizing described method or device.That is, such program product also forms the present invention, and the storage medium storing such program product also forms the present invention.Obviously, described storage medium can be any storage medium developed in any known storage medium or future.
According to another embodiment of the present invention, additionally provide a kind of storage medium (this storage medium can be ROM, RAM, hard disk, detachable memory etc.), be embedded with the computer program for carrying out Resourse Distribute in this storage medium, this computer program has to be arranged to and performs the code segment of following steps: determine the user equipment (UE) in D2D communication set in net situation; According to determine in net situation, supplementary is sent to UE, wherein, supplementary comprise following one of at least: whether the UE in D2D communication set all in the instruction of net; Be used to indicate the indication information that UE transmits the resource pool that D2D signal uses.
According to another embodiment of the present invention, additionally provide a kind of storage medium (this storage medium can be ROM, RAM, hard disk, detachable memory etc.), the computer program for carrying out resource determining step is embedded with in this storage medium, this computer program has the code segment being arranged to and performing following steps: receive supplementary, wherein, supplementary comprise following one of at least: whether the UE in D2D communication set all in the instruction of net; Be used to indicate the indication information that UE transmits the resource pool that D2D signal uses; According to the supplementary received, determine the resource pool that transmission D2D signal uses.
According to another embodiment of the present invention, additionally provide a kind of computer program, this computer program has the code segment being arranged to and performing following resource allocation step: determine the user equipment (UE) in D2D communication set in net situation; According to determine in net situation, supplementary is sent to UE, wherein, supplementary comprise following one of at least: whether the UE in D2D communication set all in the instruction of net; Be used to indicate the indication information that UE transmits the resource pool that D2D signal uses.
According to another embodiment of the present invention, additionally provide a kind of computer program, this computer program has the code segment being arranged to and performing following resource determining step: receive supplementary, wherein, supplementary comprise following one of at least: whether the UE in D2D communication set all in the instruction of net; Be used to indicate the indication information that UE transmits the resource pool that D2D signal uses; According to the supplementary received, determine the resource pool that transmission D2D signal uses.
When realizing embodiments of the invention by software and/or firmware, from storage medium or network to the computer with specialized hardware structure, the program forming this software installed by all-purpose computer 800 such as shown in Fig. 8, this computer, when being provided with various program, can perform various function etc.
In fig. 8, central processing module (CPU) 801 performs various process according to the program stored in read-only memory (ROM) 802 or from the program that storage area 808 is loaded into random-access memory (ram) 803.In RAM803, also store the data required when CPU801 performs various process etc. as required.CPU801, ROM802 and RAM803 are connected to each other via bus 804.Input/output interface 805 is also connected to bus 804.
Following parts are connected to input/output interface 805: importation 806, comprise keyboard, mouse etc.; Output 807, comprises display, such as cathode ray tube (CRT), liquid crystal display (LCD) etc., and loud speaker etc.; Storage area 808, comprises hard disk etc.; With communications portion 809, comprise network interface unit such as LAN card, modulator-demodulator etc.Communications portion 809 is via network such as internet executive communication process.
As required, driver 810 is also connected to input/output interface 805.Detachable media 811 such as disk, CD, magneto optical disk, semiconductor memory etc. are installed on driver 810 as required, and the computer program therefrom read is installed in storage area 808 as required.
When series of processes above-mentioned by software simulating, from network such as internet or storage medium, such as detachable media 811 installs the program forming software.
It will be understood by those of skill in the art that this storage medium is not limited to wherein having program stored therein shown in Fig. 8, distributes the detachable media 811 to provide program to user separately with device.The example of detachable media 811 comprises disk (comprising floppy disk (registered trade mark)), CD (comprising compact disc read-only memory (CD-ROM) and digital universal disc (DVD)), magneto optical disk (comprising mini-disk (MD) (registered trade mark)) and semiconductor memory.Or hard disk that storage medium can be ROM802, comprise in storage area 808 etc., wherein computer program stored, and user is distributed to together with comprising their device.
Also it is pointed out that in apparatus and method of the present invention, obviously, each parts or each step can decompose and/or reconfigure.These decompose and/or reconfigure and should be considered as equivalents of the present invention.Further, the step performing above-mentioned series of processes can order naturally following the instructions perform in chronological order, but does not need necessarily to perform according to time sequencing.Some step can walk abreast or perform independently of one another.
Although described the present invention and a little in detail, be to be understood that and can have carried out various change when not departing from the spirit and scope of the present invention limited by appended claim, substituting and conversion.And, the term of the application " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or device and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or device.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the device comprising described key element and also there is other identical element.