CN106304344A

CN106304344A - Resource pool collocation method and D2D UE

Info

Publication number: CN106304344A
Application number: CN201510251272.3A
Authority: CN
Inventors: 杨瑾
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-05-15
Filing date: 2015-05-15
Publication date: 2017-01-04
Anticipated expiration: 2035-05-15
Also published as: CN106304344B; WO2016184236A1

Abstract

The invention discloses a kind of resource pool collocation method and device, described method includes: obtain the sub-frame configuration bitmap sequence of PSCCH；Wherein, sub-frame configuration bitmap sequence comprises N number of indicating bit；The n-th indicating bit in N number of indicating bit is for indicating whether the subframe with the n-th indicating bit in the PSCCH cycle with mapping relations is PSCCH subframe；Determine mapping number information and the map offset of sub-frame configuration bitmap sequence；Wherein, map number information to include always mapping number of times or repeating mapping number of times；Always map number of times, for the total degree indicating sub-frame configuration bitmap sequence to map in the PSCCH cycle；Repeating mapping number of times, for the number of repetition indicating sub-frame configuration bitmap sequence to map in the PSCCH cycle；Map offset is the sub-frame offset between adjacent twice sub-frame configuration bitmap sequence mapping；According to sub-frame configuration bitmap sequence, map number information and map offset, determine the PSCCH subframe in the PSCCH cycle.

Description

Resource pool collocation method and D2D UE

Technical field

The present invention relates to the communications field, particularly relate to a kind of resource pool collocation method and device-to-device (Device To Device, referred to as D2D) user equipment (UE).

Background technology

In D2D communication system, between subscriber equipment (User Equipment, referred to as UE), there is business When needing transmission, the business datum between UE is without the forwarding of base station, but is directly led to by data source UE Cross air interface transmission to target UE.As it is shown in figure 1, UE1 and UE2 be all D2D UE, UE1 and UE2 can be communicated without base station by side chain road (Sidelink), and this communication is D2D and leads to Letter.D2D communication pattern has the feature being clearly distinguishable from cellular system communication pattern, for applying For the short-range communication user of D2D communication mode, D2D transmission not only saves radio spectrum resources, and And reduce the data transmission pressure of core net, it is possible to reduce system resource and take, increase cellular communication system Spectrum efficiency, reduces terminal transmission power consumption, and saves network operation cost to a great extent.

In D2D communication system, directly carrying out the transmission of data between UE, transmitting terminal UE can be according to The scheduling configuration of network side obtains physics limit link control channel (the Physical Sidelink of D2D communication Control Channel, referred to as PSCCH) and physics limit link shared channels (Physical Sidelink Shared Channel, referred to as PSSCH) resource, it is also possible in given PSCCH and PSSCH money In pond, source, tournament selection resource carries out the transmission of D2D Control on Communication and data message.

Resource distribution for D2D communication is repeated cyclically, and each cycle can be described as the PSCCH cycle. In the prior art, within this PSCCH cycle, part subframe is for sending limit link control message The PSCCH subframe of (Sidelink Control Information, referred to as SCI information), part subframe is For sending data message PSSCH subframe.And when carrying out D2D communication, the transmission of data message and connecing It is all relevant to described SCI information for receiving, therefore reasonable disposition PSCCH subframe and PSSCH subframe are to affect Resource utilization within the PSCCH cycle and message transmission rate and efficiency.

Summary of the invention

In view of this, embodiment of the present invention expectation provides a kind of resource pool collocation method and D2D UE, to close Physics and chemistry configures the subframe in the described PSCCH cycle, to improve the transmission effect of resource utilization and data message Rate.

For reaching above-mentioned purpose, the technical scheme is that and be achieved in that: embodiment of the present invention first party Face provides a kind of resource pool collocation method, and described method includes:

Obtain the sub-frame configuration bitmap sequence of physics limit link control channel PSCCH；Wherein, described subframe Configuration bit graphic sequence comprises N number of indicating bit；The n-th indicating bit in described N number of indicating bit is used for indicating Whether the subframe with described n-th indicating bit in the PSCCH cycle with mapping relations is PSCCH subframe；Institute Stating N is positive integer；Described n is the positive integer of the most described N；

Determine mapping number information and the map offset of described sub-frame configuration bitmap sequence；

According to described sub-frame configuration bitmap sequence, map number information and map offset, carry out sub-frame configuration Bitmap sequence mapping determines the PSCCH subframe in the PSCCH cycle；

Wherein, described mapping number information is total mapping number of times or repeating mapping number of times；Described total mapping number of times, For indicating described sub-frame configuration bitmap sequence to carry out described sub-frame configuration bitmap in the described PSCCH cycle The total degree of sequence mapping；Described repeating mapping number of times, is used for indicating described sub-frame configuration bitmap sequence in institute State the number of repetition carrying out described sub-frame configuration bitmap sequence mapping in the PSCCH cycle；Described Map Offsets Measure as sub-frame offset between sub-frame configuration bitmap sequence mapping described in adjacent twice.

It is preferably, described according to described sub-frame configuration bitmap sequence, mapping number information and map offset, Carry out the PSCCH subframe that sub-frame configuration bitmap sequence mapping is determined in the PSCCH cycle, including:

From the beginning of the initial subframe in described PSCCH cycle, carry out according to described sub-frame configuration bitmap sequence The most described sub-frame configuration bitmap sequence mapping；Wherein, the initial subframe in described PSCCH cycle is described First subframe in the PSCCH cycle.

From the beginning of the initial subframe of the m time described sub-frame configuration bitmap sequence mapping, according to described Map Offsets Amount carries out sub-frame offset, determines the initial subframe of the m+1 time subframe configuration bit graphic sequence mapping；Wherein, institute State the initial subframe of the m time described sub-frame configuration bitmap sequence mapping in described the m time described sub-frame configuration In bitmap sequence mapping, the subframe that in described sub-frame configuration bitmap sequence, first indicating bit is corresponding；

Or

Map from described the m time subframe configuration bit graphic sequence last described PSCCH subframe of determining it After first subframe start, carry out sub-frame offset according to described map offset, determine the m+1 time subframe The initial subframe that configuration bit graphic sequence maps；

Or,

From the beginning of first subframe after the cut-off subframe that described the m time subframe configuration bit graphic sequence maps, Carry out sub-frame offset according to described map offset, determine rising of the m+1 time subframe configuration bit graphic sequence mapping Beginning subframe；Wherein, the cut-off subframe that described the m time subframe configuration bit graphic sequence maps is at described the m time In sub-frame configuration bitmap sequence mapping, the son that in described sub-frame configuration bitmap sequence, last indicating bit is corresponding Frame；

Wherein, described m is less than described total mapping number of times or the positive integer of the most described repeating mapping number of times.

Preferably, described PSCCH subframe determined by kth time subframe configuration bit graphic sequence mapping is sent out The limit link control message sent, for instruction for the PSSCH subframe that carries out data transmission in the range of from Subframe s is to subframe t；

Described subframe s is last the described PSCCH during described kth time subframe configuration bit graphic sequence maps First subframe after subframe；Or described subframe s is during described kth time subframe configuration bit graphic sequence maps Last described PSCCH subframe after, and first subframe being positioned in described PSSCH resource pool；

Described subframe t is a son before the initial subframe during+1 subframe configuration bit graphic sequence of kth maps Frame；Or

Before described subframe t is the initial subframe during+1 subframe configuration bit graphic sequence of kth maps, and it is positioned at Last subframe in described PSSCH resource pool；Or

Described subframe t is first described PSCCH during+1 subframe configuration bit graphic sequence of described kth maps A subframe before subframe；Or

Described subframe t is first described PSCCH during+1 subframe configuration bit graphic sequence of described kth maps Before subframe, and it is positioned at last subframe in described PSSCH resource pool；Or

Described subframe t is in last subframe in the described PSCCH cycle or described PSSCH resource pool Last subframe；

Wherein, described PSSCH resource pool includes at least one PSSCH subframe.

Preferably, the described mapping number information determining described sub-frame configuration bitmap sequence and map offset, Including following at least one:

Based on preconfigured information, determine described mapping number information and/or described map offset；

Based on system definition information, determine described mapping number information and/or described map offset；

Receive high-level signaling and obtain mapping number information and/or described map offset from described high-level signaling；

According to the attribute information of PSCCH resource pool, determine that described mapping number information and/or described mapping are inclined Shifting amount；Wherein, the attribute information of described PSCCH resource pool include described PSCCH resource pool cycle and / or described PSCCH resource pool in the quantity of PSCCH subframe that comprises；

According to the attribute information of described PSSCH resource pool, determine described mapping number information and/or described in reflect Penetrate side-play amount；Wherein, the attribute information of described PSSCH resource pool includes the week of described PSSCH resource pool The quantity of the PSSCH subframe comprised in phase and/or described PSSCH resource pool；

Described PSSCH resource pool includes at least one PSSCH subframe.

Preferably, described high-level signaling includes system message；

Described mapping number information and/or described map offset, in the community sending described system message Armamentarium carry out described to the D2D UE in equipment D2D UE or the D2D group that specifies The determination of PSCCH subframe.

Preferably, described high-level signaling includes radio resource control RRC message；

Described mapping number information and/or described map offset are carried on the equipment of described RRC information to setting In standby communication configuration information unit and/or the configuration information unit relevant to device-to-device communication relay.

Preferably, described method also includes:

When the described PSCCH subframe determined is overlapping with the PSSCH subframe in described PSSCH resource pool Time, determine that subframe overlapping with described PSCCH subframe in described PSSCH resource pool is not used in transmission data Information.

Embodiment of the present invention second aspect provides a kind of D2D UE, described D2DUE to include:

Acquiring unit, for obtaining the sub-frame configuration bitmap sequence of physics limit link control channel PSCCH； Wherein, described sub-frame configuration bitmap sequence comprises N number of indicating bit；The n-th instruction in described N number of indicating bit Whether position for indicating the subframe with described n-th indicating bit in the PSCCH cycle with mapping relations is PSCCH subframe；Described N is positive integer；Described n is the positive integer of the most described N；

First determines unit, for determining the mapping number information of described sub-frame configuration bitmap sequence and mapping partially Shifting amount；Second determines unit, for according to described sub-frame configuration bitmap sequence, mapping number information and mapping Side-play amount, carries out the PSCCH subframe that sub-frame configuration bitmap sequence mapping is determined in the PSCCH cycle；

Preferably, described second determines unit, specifically for opening from the initial subframe in described PSCCH cycle Begin, carry out described sub-frame configuration bitmap sequence mapping for the first time according to described sub-frame configuration bitmap sequence；Wherein, The initial subframe in described PSCCH cycle is first subframe in the described PSCCH cycle.

Preferably, described second determines unit, also particularly useful for from the m time described sub-frame configuration bitmap sequence The initial subframe mapped starts, and carries out sub-frame offset according to described map offset, determines the m+1 time subframe The initial subframe that configuration bit graphic sequence maps；Wherein, described the m time described sub-frame configuration bitmap sequence mapping Initial subframe be in described the m time described sub-frame configuration bitmap sequence mapping, described sub-frame configuration bitmap The subframe that in sequence, first indicating bit is corresponding；

Or

Or,

Described subframe t is a son before the initial subframe during+1 subframe configuration bit graphic sequence of kth maps Frame；

Wherein, described PSSCH resource pool includes at least one PSSCH subframe.

Preferably, described first determines unit, specifically for based on preconfigured information, determines described mapping time Number information and/or described map offset；And/or,

Based on system definition information, determine described mapping number information and/or described map offset；And/or,

Receive high-level signaling and obtain mapping number information and/or described map offset from described high-level signaling； And/or,

And/or, according to the attribute information of described PSSCH resource pool, determine described mapping number information and/or Described map offset；Wherein, the attribute information of described PSSCH resource pool includes described PSSCH resource The quantity of the PSSCH subframe comprised in the cycle in pond and/or described PSSCH resource pool；

Described PSSCH resource pool includes at least one PSSCH subframe.

Preferably, described high-level signaling includes system message；

Described mapping number information and described map offset, in the community sending described system message D2D UE in whole D2D UE or appointment D2D group carries out the determination of described PSCCH subframe.

Preferably, described D2D UE also includes:

3rd determines unit, for when in the described PSCCH subframe determined with described PSSCH resource pool PSSCH subframe overlap time, determine in described PSSCH resource pool overlapping with described PSCCH subframe Subframe is not used in transmission data message.The configuration of subframe in PSCCH resource pool described in the embodiment of the present invention Method and D2D UE, when carrying out sub-frame configuration, can be in conjunction with subframe configuration bit graphic sequence, mapping number of times letter Breath and map offset carry out the sub-frame configuration bitmap sequence of one or many within a PSCCH cycle and reflect Penetrating, follow-up D2D UE is when communicating, it is possible to the maximum number of the SCI information of transmission is equal to The number of times of the sub-frame configuration bitmap sequence mapping carried out in one described PSCCH cycle, it is achieved thereby that D2D UE transmission to multiple SCI information within a described PSCCH cycle, has further facilitated D2D UE Use multiple SCI information to carry out PSSCH scheduling of resource and the transmission of many secondary data, and can have more general The described PSCCH subframe that makes of rate was dispersed in the whole described PSCCH cycle, facilitated D2D UE described Carry out data transmission in the different time sections in PSCCH cycle, improve the utilization of resources in the PSCCH cycle Rate and efficiency of transmission.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of D2D communication；

Fig. 2 is the allocative effect schematic diagram of a kind of sub-frame configuration；

Fig. 3 is the method flow schematic diagram of sub-frame configuration described in the embodiment of the present invention；

Fig. 4 is one of allocative effect schematic diagram of sub-frame configuration described in the embodiment of the present invention；

The schematic diagram of the original position of sub-frame offset described in Fig. 5 a to Fig. 5 c embodiment of the present invention；

Fig. 6 to Fig. 7 is the PSSCH of the SCI information instruction that PSCCH subframe described in the embodiment of the present invention sends The scope schematic diagram of subframe；

Fig. 8 to Fig. 9 is that the determination described in the embodiment of the present invention maps number information and the method for map offset Schematic flow sheet；

Figure 10 is the structural representation of the sub-frame configuration device described in the embodiment of the present invention.

Detailed description of the invention

PSCCH resource pool configuration cycle property repeats, and comprises one or more PSCCH subframe in each cycle, Instruction to PSCCH subframe is realized by sub-frame configuration bitmap sequence (bitmap).According to base station instruction Or the bit map sequence that system is pre-configured, start mapped bits bitmap from the original position in PSCCH cycle Sequence, generally, when the indicating bit of corresponding sub-frame configuration bitmap sequence is " 1 ", represents that this subframe is PSCCH Subframe, represents during for " 0 " that this subframe is not as PSCCH subframe.

In PSCCH subframe, D2D UE sends SCI information.Described SCI information is used for indicating accordingly The PSSCH subframe at data message place and Resource Block (Resource Block, may be simply referred to as RB) configuration etc. Information.PSSCH subframe is arranged in SCI information and can pass through time-domain resource pattern (Timing Resource Pattern, may be simply referred to as TRP) instruction, may determine that corresponding PSSCH sub-frame configuration according to TRP. PSSCH subframe repeating mapping within the cycle indicated by TRP, until end cycle.When D2D UE adopts With resources mode for the moment, the PSSCH subframe of TRP instruction is mapped in continuous print system uplink subframe, when Use resources mode two time, TRP instruction PSSCH subframe based on corresponding PSSCH resource pool, It is mapped in PSSCH resource pool in the subframe comprised.

When carrying out sub-frame configuration, initiate subframe based on sub-frame configuration bitmap sequence from the PSCCH cycle and start Sub-frame configuration bitmap sequence mapping.The subframe scope of described sub-frame configuration bitmap sequence instruction is PSCCH In cycle, first subframe is to n-th subframe.Described N is the finger included by described sub-frame configuration bitmap sequence Show the number of position.As in figure 2 it is shown, sub-frame configuration bitmap can corresponding N number of subframe.Now, usual subframe is joined Set graphic sequence includes N number of indicating bit, and this N number of indicating bit can be used for whether N number of subframe is PSCCH Subframe indicates.In fig. 2, described sub-frame configuration bitmap sequence is used for indicating the described PSCCH cycle In interior top n subframe, which subframe will be as PSCCH subframe.

Use this sub-frame configuration mode, within the described PSCCH cycle, at most configure N number of PSCCH subframe, And this N number of PSCCH subframe one is positioned the top n subframe in described PSCCH cycle.First, at this Planting under configuring condition, a D2D transmitting terminal UE is only capable of sending a SCI information；Secondly, based on this Individual SCI information, is only capable of carrying out the scheduling of a PSSCH resource and one group of data of scheduled transmission；Again, There is also such situation, UE cannot send SCI information after N number of subframe in PSCCH cycle, Cannot be carried out the D2D communication of Real-Time Scheduling, this may result in the waste of the D2D communication resource, D2D communication Propagation delay time and the problem such as message transmission rate is low.When a UE within this PSCCH cycle with multiple When UE carries out organizing different data D2D communication or transmission more, as subframe in the PSCCH cycle Configuration and transmission rule can not meet corresponding requirement, and cannot be carried out.

In this application when carrying out the configuration of described PSCCH subframe, introduce mapping number information and reflect Penetrate side-play amount, so enable to when carrying out sub-frame configuration, based on PSCCH sub-frame configuration bitmap sequence Carry out the sub-frame configuration bitmap sequence mapping of 2 times or more than 2 times, this makes it possible to break and be only capable of PSCCH Sub-frame configuration, in the limitation of the top n subframe in PSCCH cycle, enables PSCCH subframe be dispersed in simultaneously In the whole cycle in PSCCH cycle, make UE can carry out SCI transmission flexibly and PSSCH resource refers to Show.

Below in conjunction with Figure of description and specific embodiment technical scheme done and further explain in detail State.

Embodiment of the method:

As it is shown on figure 3, the present embodiment provides a kind of resource pool collocation method, described method includes:

Step S110: obtain the sub-frame configuration bitmap sequence of physics limit link control channel PSCCH；Wherein, Described sub-frame configuration bitmap sequence comprises N number of indicating bit；The n-th indicating bit in described N number of indicating bit is used for Whether the subframe with described n-th indicating bit in the instruction PSCCH cycle with mapping relations is PSCCH subframe； Described N is positive integer；Described n is the positive integer of the most described N；

Step S120: determine mapping number information and the map offset of described sub-frame configuration bitmap sequence；Step Rapid S130: according to described sub-frame configuration bitmap sequence, map number information and map offset, carry out subframe Configuration bit graphic sequence maps determines the PSCCH subframe in the PSCCH cycle；

Resource pool collocation method described in the present embodiment, can be described as again subframe type and determines method, can be application In the D2D UE of D2D communication process, can be not only used in the transmitting terminal UE as D2D communication, also Can apply in the receiving terminal UE of D2D communication.When being applied in D2D transmitting terminal UE, described Sending end UE can according to determined by PSCCH sub-frame configuration, use one or more PSCCH subframe come Send the SCI information of D2D communication, and in PSSCH subframe indicated by SCI, send D2D communication data. Described receiving terminal UE, can according to determined by PSCCH sub-frame configuration, PSCCH subframe is carried out The blind check of SCI, and according to the SCI detected, in the PSSCH subframe indicated, receive data further, Complete the data interaction in D2D communication.

The mode obtaining described sub-frame configuration bitmap sequence in step s 110 includes: receives subframe from base station and joins Set graphic sequence.D2D UE generally receives sub-frame configuration bitmap sequence from the base station of its geographic location. Base station can include various types of base station, such as macro base station etc., concrete such as evolved base station eNB.

Determine that described mapping number information can directly or indirectly characterize sub-frame configuration bitmap in the step s 120 Sequence carries out the number of times of sub-frame configuration bitmap sequence mapping within a PSCCH cycle.Repeating mapping number of times 1 is deducted equal to total number of times that maps.If the repeating mapping number of times of a subframe configuration bit graphic sequence is 3 times, then This sub-frame configuration bitmap sequence total number of times that maps in a PSCCH cycle is 4 times.Each indicating bit Whether corresponding subframe is PSCCH subframe, can be determined according to the information content of corresponding indicating bit.Often One indicating bit is " 0 " or for " 1 " two states, generally when described information indicating bit is " 1 ", right The subframe answered is PSCCH subframe, is otherwise non-PSCCH subframe.

In the present embodiment, map offset is in units of subframe, and span is not less than 1 and less than PSCCH The subframe sum that cycle includes.The sub-frame offset determined based on map offset, makes sub-frame configuration bitmap sequence Repeatedly map in different subframes within the PSCCH cycle.

Map number information and map offset can be stored in advance in D2D UE, in step S120 really Surely map number information and map offset to include: have from storage and map depositing of number information and map offset Storage area territory is read and maps number information and map offset；Or peripheral hardware receives mapping number of times letter from base station etc. Breath and the configuration information of map offset.

When step S130 carries out sub-frame configuration bitmap sequence mapping, carry out sub-frame configuration bitmap sequence for the first time Map initial subframe, can be any one subframe in the PSCCH cycle, but in order to existing skill Art is preferably compatible and the more important thing is the resource preferably utilized in the PSCCH cycle, implements in the application Example is preferably from the beginning of the initial subframe in PSCCH cycle, carries out first according to sub-frame configuration bitmap sequence Secondary subframe configuration bit graphic sequence maps.Like this first indicating bit of sub-frame configuration bitmap sequence, is used for Whether the first subframe in the instruction PSCCH cycle is PSCCH subframe.

One of allocative effect figure being resource pool collocation method based on the present embodiment formation shown in Fig. 4. Repeating mapping times N in the diagram^repeatEqual to 2.I.e. sub-frame configuration bitmap sequence is at the PSCCH shown in Fig. 4 Cycle will carry out 3 times map.N number of indicating bit of sub-frame configuration bitmap sequence has 4 indicating bit instructions Corresponding subframe is PSCCH subframe, carries out 3 subframe configuration bit graphic sequences and reflect in this PSCCH cycle Penetrate, formed and be configured with 12 PSCCH subframes as shown in Figure 4.As can be known from Fig. 4, Map Offsets The quantity of the subframe that amount is corresponding carries out a sub-frame configuration bitmap sequence mapping more than sub-frame configuration bitmap sequence and refers to The quantity of the subframe shown, is dispersed in the PSCCH cycle so that repeatedly map the PSCCH subframe determined. Obviously the resource pool collocation method of the present embodiment, can not only configure more PSCCH subframe, also simultaneously PSCCH subframe can be made evenly to be distributed in the whole PSCCH cycle, thus conveniently preferably improve subframe Message transmission rate in utilization rate and D2D communication.

Obviously the collocation method of the resource pool in the present embodiment, when repeating mapping number of times is not 0 or total mapping time When number is not less than 2, the sub-frame configuration bitmap sequence mapping carried out based on sub-frame configuration bitmap sequence will not be less than Twice, such a D2D transmitting terminal UE can send 2 and above SCI information, based on multiple SCI The transmission of information can carry out the instruction of multiple PS SCH scheduling of resource, the data that scheduled transmission is many groups；Can enter More than twice or twice data of row are broadcasted and/or clean culture；Thus improve resource utilization and data transmission effect Rate.

The mode carrying out sub-frame offset based on sub-frame offset has multiple, three kinds of optional modes presented below.

Mode one:

As shown in Figure 5 a, described step S130 comprises the steps that

From the beginning of the initial subframe of the m time subframe configuration bit graphic sequence mapping, carry out son according to map offset Vertical shift, determines the initial subframe of the m+1 time subframe configuration bit graphic sequence mapping.Wherein, sub-frame configuration position The initial subframe that graphic sequence maps refers to the subframe that in sub-frame configuration bitmap sequence, first indicating bit is corresponding.? In this sub-frame offset mode, the value of the sub-frame number that map offset is corresponding is preferably greater than described subframe and joins Set graphic sequence carries out the quantity of the subframe of a sub-frame configuration bitmap sequence instruction, like this can make many What secondary subframe configuration bit graphic sequence mapped that the PSCCH subframe that determines can be discrete is distributed in the PSCCH cycle In, facilitate UE the most in the same time, utilize PSCCH subframe to send SCI information.If additionally, Map Offsets The sub-frame number of amount correspondence carries out a sub-frame configuration bitmap sequence instruction more than described sub-frame configuration bitmap sequence The quantity of subframe, additionally it is possible to when carrying out sub-frame configuration, it is to avoid repeatedly sub-frame configuration bitmap sequence mapping mistake Cheng Zhong, repeats the selected same subframe phenomenon as PSCCH subframe.

Mode two:

As shown in Figure 5 b, described step S130 comprises the steps that

First after last the PSCCH subframe determined is mapped from the m time subframe configuration bit graphic sequence Individual subframe starts, and carries out sub-frame offset according to map offset, determines the m+1 time subframe configuration bit graphic sequence The initial subframe mapped.The initial subframe of described the m time described sub-frame configuration bitmap sequence mapping is described In the m time described sub-frame configuration bitmap sequence mapping, first indicating bit in described sub-frame configuration bitmap sequence Corresponding subframe.

In the manner, last PSCCH determined from the m time subframe configuration bit graphic sequence maps Subframe, can be the sequence in PSCCH subframe determined by the m time subframe configuration bit graphic sequence mapping process A number maximum subframe.The offset manner of this sub-frame configuration bitmap sequence mapping, it is possible to farthest Avoid the problem being mapped to same subframe during twice sub-frame configuration bitmap sequence mapping, and realize letter Single convenient.

Mode three:

As shown in Figure 5 c, described step S130 comprises the steps that

From the beginning of first subframe after the cut-off subframe of the m time subframe configuration bit graphic sequence mapping, foundation Map offset carries out sub-frame offset, determines the initial subframe of the m+1 time subframe configuration bit graphic sequence mapping.

The cut-off subframe that described the m time subframe configuration bit graphic sequence maps is at described the m time subframe configuration bit During graphic sequence maps, the subframe that in described sub-frame configuration bitmap sequence, last indicating bit is corresponding.

This mode also is able to avoid repeatedly mapping of sub-frame configuration bitmap sequence to indicate asking to same subframe Topic, the most also can reach the purpose making PSCCH subframe be dispersed in the PSCCH cycle.

It should be noted that no matter be that in above-mentioned three kinds of modes, any described mode, the value of m is little In always mapping number of times or no more than repeating mapping number of times.

PSCCH subframe is used for sending SCI information, may be used to indicate all of PSSCH being positioned at after it The control information of subframe, in the present embodiment, specify that the most further and reflects in repeatedly sub-frame configuration bitmap sequence Hit the scope of the PSSCH subframe that the SCI information sent in the PSCCH subframe indicated can indicate that.

The SCI sent in PSCCH subframe determined by mapping at kth time subframe configuration bit graphic sequence, can refer to The PSSCH subframe shown in the range of from subframe s to subframe t.

Now, subframe s be last the PSCCH subframe during kth time subframe configuration bit graphic sequence maps it After first subframe；Or, subframe s is last during kth time subframe configuration bit graphic sequence maps After PSCCH subframe, and first subframe being positioned in the resource pool of PSSCH；

Subframe t is a subframe before the initial subframe during+1 subframe configuration bit graphic sequence of kth maps； Or, before subframe t is the initial subframe during+1 subframe configuration bit graphic sequence of kth maps, and it is positioned at Last subframe in PSSCH resource pool；Subframe t is during+1 subframe configuration bit graphic sequence of kth maps First described PSCCH subframe before a subframe；Or, subframe t is+1 sub-frame configuration of kth Before first PSCCH subframe in bitmap sequence mapping, and it is positioned in PSSCH resource pool last Subframe；Or, subframe t be in last subframe in the PSCCH cycle or PSSCH resource pool Later subframe.

In the present embodiment owing to PSCCH sub-frame configuration bitmap sequence having been carried out repeatedly within a cycle Map, therefore need to determine the SCI sent in the PSCCH subframe in sub-frame configuration bitmap sequence mapping each time The scope of the PSSCH subframe that be can indicate that in information, determines SCI and the instruction of corresponding PSSCH subframe Relation.

Step 120 will determine mapping number information and map offset；D2D UE obtains and maps number of times letter The mode of breath and map offset has multiple, several optional modes presented below.

The first: based on preconfigured information, determine mapping number information and/or map offset.The most such as, Bandwidth and/or the duplex mode of communication system according to communication system determine mapping number information and/or map partially The value of shifting amount, is carried out pre-configured by the correlation function node in communication system, is issued by network equipment To the whole network, or carry out pre-configured in network side and/or terminal unit according to operator needs, determine mapping time Number information and/or map offset.Correlation function node device, network equipment herein can be following Anticipate one or more: evolved base station (eNB), relay station (RN), cell cooperative entity (MCE), Gateway (GW), mobility management apparatus (MME), Evolved UTRAN (EUTRAN) Operation management and safeguard (OAM) manager.

The second: based on system definition information, determines described mapping number information and/or described map offset. System definition information herein can include communication protocol, and D2D UE determines based on the communication protocol followed and reflects Penetrate the value of number information and/or map offset.

The third: receive high-level signaling and obtain mapping number information and/or described Map Offsets from high-level signaling Amount.The value mapping number information and/or map offset in the manner can be repaiied by signal deployment Changing, UE is by receiving the high-level signaling that the base station of its position sends, and acquisition is carried in high-level signaling The value configuration mapping number information and/or map offset.Described high-level signaling can include what base station sent System information SIB, may also include radio resource control RRC message contour level signaling.

Mapping number information and/or map offset are carried on the ProseCommConfig information of RRC information In unit, and/or the configuration information unit relevant to Prose Relay.Herein, described ProseCommConfig information unit is described device-to-device communication configuration information unit.Described Prose Configuration information unit relevant for Relay is the configuration that device-to-device communication relay is relevant.

When high-level signaling is SIB message, the mapping number information of instruction and/or map offset configuration, it is used for Whole D2D UE in community, or specify the D2DUE in D2D group, determine that PSCCH subframe is joined Put.

4th kind: according to the attribute information of PSCCH resource pool, determine mapping number information and/or map partially Shifting amount；Wherein, the attribute information of PSCCH resource pool includes cycle and/or the PSCCH of PSCCH resource pool The quantity of the PSCCH subframe comprised in resource pool；

5th kind: according to the attribute information of PSSCH resource pool, determine mapping number information and/or map partially Shifting amount；Wherein, the attribute information of PSSCH resource pool includes cycle and/or the PSSCH of PSSCH resource pool The quantity of the PSSCH subframe comprised in resource pool.PSSCH resource pool is for including one or more PSSCH The resource pool of subframe.When using the method described in the present embodiment, the PSCCH subframe shown in indication and PSSCH Subframe is overlapping, and time i.e. corresponding to same subframe, the method described in the present embodiment also includes: PSSCH with During PSCCH subframe overlap, determine that overlap sub-frame uses as PSCCH subframe, be used for sending SCI information, Do not send data message.

Several instantiations are provided below in conjunction with above-described embodiment.

Example one:

This example provides map offsetThree kinds of usages；

In this example,Indicate the relative displacement between adjacent twice bitmap sequence mapping, RightActual indicative significance can have three kinds of implementation methods.Described bitmap sequence herein is Above-mentioned PSCCH sub-frame configuration bitmap sequence.

Method one:Instruction is from the initial subframe of the m time bitmap sequence mapping of bitmap sequence AfterwardsIndividual subframe starts, and carries out the m+1 time bitmap sequence mapping, as shown in Figure 5 a；

Method two:Instruction is from the cut-off subframe of the m time bitmap sequence mapping of bitmap sequence AfterwardsIndividual subframe starts, and carries out the m+1 time bitmap sequence mapping, as shown in Figure 5 c；

Method three:Last from the m time bitmap sequence mapping of bitmap sequence of instruction After individual effective subframeIndividual subframe starts, and carries out the m+1 time bitmap sequence mapping, as Shown in Fig. 5 b.

Wherein, the initial subframe of bitmap sequence mapping refers to first bit indicating bit pair in bitmap sequence The subframe answered；The cut-off subframe of bitmap sequence mapping refers to last bit indicating bit in bitmap sequence Corresponding subframe, the n-th subframe i.e. started from initial subframe, N is bitmap sequence length, i.e. bitmap The bit number comprised in sequence；Effective subframe in bitmap sequence mapping refers to indicate in bitmap sequence The subframe being configured to PSCCH resource, i.e. in bitmap sequence, corresponding indicating bit is the subframe that " 1 " is corresponding, The son that during then last effective subframe corresponds to bitmap sequence, the indicating bit of last set is corresponding Frame.

Example two

By providing when D2D UE uses the resource scheme of pattern one in this example, based on present invention determine that Under PSCCH sub-frame configuration, the corresponding indexical relation of PSCCH resource and PSSCH resource.

When the pattern of employing for the moment, PSCCH and the PSSCH resource of D2D UE can by eNB scheduling configuration, The PSSCH subframe of the TRP instruction in SCI information presses subframe one_to_one corresponding in system uplink subframe.Now, As PSCCH bitmap repeating mapping within the cycle, the PSCCH that kth time bitmap sequence mapping indicates SCI information denotable PSSCH subframe scope in subframe is to subframe t from subframe s.

Subframe s is first subframe after last the effective subframe in kth time bitmap sequence mapping； Effective subframe herein is last PSCCH determined by kth time bitmap sequence mapping Frame.

Subframe t is last subframe before the initial subframe of+1 bitmap sequence mapping of kth；

Work as k=N^repeatWhen+1, N^repeatFor repeating mapping number of times, subframe t is last in the PSCCH cycle Individual subframe.

As shown in Figure 6, N^repeat=1, in the PSCCH subframe that first time bitmap sequence mapping indicates In the SCI information of carrying, denotable PSSCH subframe be first time bitmap in the range of, subframe s First subframe after the effective subframe of last in sequence mapping, subframe t is second time bitmap sequence Last subframe before the initial subframe that row map；Indicate at second time bitmap sequence mapping PSCCH subframe on carrying SCI information in, denotable PSSCH subframe is in the range of, subframe s For first subframe after the effective subframe of last in second time bitmap sequence mapping, subframe t is Last subframe in the PSCCH cycle.

Example three

By providing when D2D UE uses the resource scheme of pattern two in this example, based on present invention determine that Under PSCCH sub-frame configuration, the corresponding indexical relation of PSCCH resource and PSSCH resource.

When use resources mode two time, PSCCH and the PSSCH resource of D2D UE by UE configuration In resource pool, tournament selection uses, and the PSSCH subframe of TRP in SCI information instruction is by subframe one a pair Should be in the subframe in PSSCH resource pool.Now, when bitmap sequence repeating mapping within the PSSCH cycle, SCI information denotable PSSCH in the PSCCH subframe that kth time bitmap sequence mapping indicates Frame scope is to subframe t from subframe s.

After subframe s is last the effective subframe during kth time bitmap sequence mapping maps, it is included in First subframe in PSSCH resource pool；

Before subframe t is first effective subframe during+1 bitmap sequence mapping of kth maps, it is included in Last subframe in PSSCH resource pool；

Work as k=N^repeatWhen+1, subframe t is last that be included in PSSCH resource pool in the PSCCH cycle Individual subframe.

As it is shown in fig. 7, N^repeat=1, in the PSCCH subframe that first time bitmap sequence mapping indicates In the SCI information of carrying, denotable PSSCH subframe is for the first time in the range of corresponding subframe s First subframe in PSSCH resource pool after last effective subframe of bitmap sequence mapping instruction； Before subframe t of described correspondence is first effective subframe of second time bitmap sequence mapping, PSSCH provides Last subframe in pond, source；The PSCCH subframe that second time bitmap sequence mapping indicates is held In the SCI information carried, denotable PSSCH subframe is second time bitmap in the range of corresponding subframe s First subframe in PSSCH resource pool after the effective subframe of last in sequence mapping；Corresponding son Last subframe in frame t is the PSCCH cycle, in PSSCH resource pool.

Example four

This example provides and uses high-level signaling to send described mapping number information and Map Offsets to D2D UE The method of amount.

Map number information and map offset can be by system by high-level signaling, such as system broadcast information SIB Or RRC information instruction.

As shown in Figure 8, this example includes:

Step S11:eNB sends the system letter including mapping number information and map offset to D2D UE Breath；

Step S12:D2D UE determines PSCCH subframe based on described mapping number information and map offset, Certainly, when specifically determining described PSCCH subframe, also will determine based on sub-frame configuration bitmap sequence.

As it is shown in figure 9, this example includes:

Step S21:eNB sends the RRC including mapping number information and map offset and disappears to D2D UE Breath.

Step S22:D2D UE determines PSCCH subframe based on described mapping number information and map offset.

Independent mapping number information can be carried out for UE by RRC information and map offset configures, Each D2D UE in community can be configured respectively, can be used for carrying and map number information and mapping The RRC information of offset parameter is ProseCommConfig information unit, or is and Prose Relay Relevant configuration information unit.

Example five

The method mapping number information is determined based on PSCCH resource period.

Map number information and be presented as repeating mapping times N^repeat, can be according to the cycle of PSCCH resource pool Determine, system define N^repeatAnd the index relative between the PSCCH resource pool cycle, for any PSCCH A cycle uniquely corresponding N^repeatValue, then need not signaling and indicate N to D2D UE^repeatConfiguration, D2D UE Can be according to the cycle of PSCCH resource pool, and the index relative of the two directly determines N^repeatNumerical value.Table 1 For a kind of PSCCH resource pool cycle and N^repeatCorresponding relation.

Table 1

Apparatus embodiments:

As shown in Figure 10, the present embodiment provides a kind of D2D UE, described D2DUE to include:

Acquiring unit 110, for obtaining the sub-frame configuration bitmap sequence of physics limit link control channel PSCCH； Wherein, described sub-frame configuration bitmap sequence comprises N number of indicating bit；The n-th instruction in described N number of indicating bit Whether position for indicating the subframe with described n-th indicating bit in the PSCCH cycle with mapping relations is PSCCH subframe；Described N is positive integer；Described n is the positive integer of the most described N；

First determines unit 120, for determining the mapping number information of described sub-frame configuration bitmap sequence and reflecting Penetrate side-play amount；Second determines unit 130, for according to described sub-frame configuration bitmap sequence, mapping number of times letter Breath and map offset, carry out sub-frame configuration bitmap sequence mapping and determine the PSCCH in the PSCCH cycle Subframe.

Described mapping number information is total mapping number of times or repeating mapping number of times；Described total mapping number of times, is used for Described sub-frame configuration bitmap sequence is indicated to carry out described sub-frame configuration bitmap sequence in the described PSCCH cycle The total degree mapped；Described repeating mapping number of times, is used for indicating described sub-frame configuration bitmap sequence described The PSCCH cycle carries out the number of repetition of described sub-frame configuration bitmap sequence mapping；Described map offset is Sub-frame offset between sub-frame configuration bitmap sequence mapping described in adjacent twice.

The concrete structure of the acquiring unit 110 described in the present embodiment is according to obtaining described sub-frame configuration bitmap sequence Mode different and different, specifically when as described in D2D UE be that subframe as described in reception from the peripheral hardwares such as base station is joined During set graphic sequence, described D2D UE includes that receiving interface, described receiving interface can include one or more Reception antenna.

Described first determines that the structure of unit 120 can include processor and the storage medium with information processing. Described storage medium storage has described mapping number information and map offset；Described processor can be by performing Appointment codes reads described mapping number information and map offset from described storage medium.Described first determines Unit 120 may also comprise receiving interface, and described receiving interface can receive described mapping from the peripheral hardwares such as base station Number information and map offset.

Described second determines that the concrete concrete structure of unit 130 can include processor or process chip, by foundation Described sub-frame configuration bitmap sequence, mapping number information and map offset were determined in the PSCCH cycle Which subframe is PSCCH subframe.

D2D UE described in the present embodiment may be used for realizing the resource pool described in preceding method embodiment Collocation method, uses the resource pool that D2D UE described in the present embodiment configures, it is possible to allow transmitting terminal UE More than one SCI information is sent, it is possible to preferably utilize PSCCH within a described PSCCH cycle Resource in cycle, improves efficiency of transmission etc..

Described second determines unit 120, specifically for, from the beginning of the initial subframe in described PSCCH cycle, depending on Described sub-frame configuration bitmap sequence mapping for the first time is carried out according to described sub-frame configuration bitmap sequence.At the present embodiment Described in second determine that unit 120, will be from the PSCCH cycle when carrying out sub-frame configuration bitmap sequence mapping Initial subframe start, the initial subframe in PSCCH cycle here refers to the of described PSCCH cycle One subframe.

Hereinafter determine that unit 120 carries out sub-frame offset according to map offset for described in the present embodiment second Several structures.

Structure one:

Described second determines unit 120, also particularly useful for from the m time described sub-frame configuration bitmap sequence mapping Initial subframe start, carry out sub-frame offset according to described map offset, determine the m+1 time sub-frame configuration The initial subframe of bitmap sequence mapping.Wherein, described the m time described sub-frame configuration bitmap sequence mapping rise Beginning subframe is in described the m time described sub-frame configuration bitmap sequence mapping, described sub-frame configuration bitmap sequence In subframe corresponding to first indicating bit.

Structure two:

Described second determines unit 120, maps also particularly useful for from described the m time subframe configuration bit graphic sequence First subframe after last determined described PSCCH subframe starts, according to described Map Offsets Amount carries out sub-frame offset, determines the initial subframe of the m+1 time subframe configuration bit graphic sequence mapping；

Structure three:

Described second determines unit 120, maps also particularly useful for from described the m time subframe configuration bit graphic sequence Cut-off subframe after first subframe start, carry out sub-frame offset according to described map offset, determine The initial subframe of the m+1 time subframe configuration bit graphic sequence mapping；Wherein, described m is for always to reflect less than described Penetrate number of times or the positive integer of the most described repeating mapping number of times.Described the m time subframe configuration bit graphic sequence reflects During the cut-off subframe penetrated is for mapping at described the m time subframe configuration bit graphic sequence, described sub-frame configuration bitmap sequence The subframe that in row, last indicating bit is corresponding；

The side chain sent in described PSCCH subframe determined by mapping at kth time subframe configuration bit graphic sequence Road controls information, is used for the PSSCH subframe being used for carrying out data transmission of instruction in the range of from subframe s To subframe t.

The meaning herein can be regarded as: PSCCH subframe can be used in sending limit link control message；Described limit The PSSCH subframe that link control message carries out data transmission for instruction；Wherein, described kth time subframe is joined Set graphic sequence map in the described PSCCH subframe denotable PSSCH subframe determined in the range of from Subframe s is to subframe t.

Described subframe t is in last subframe in the described PSCCH cycle or described PSSCH resource pool Last subframe.

Described first determines that unit 110 determines that the structure of described mapping number information and described map offset has A variety of, several optional structures presented below.

Described first determines that unit 110 includes at least one of following optional structure；

Described first determines unit 110, specifically for based on preconfigured information, determines that described mapping number of times is believed Breath and/or described Map Offsets.

Described first determines unit 110, specifically for based on system definition information, determines described mapping number of times Information and/or described map offset.

Described first determines unit 110, specifically for receiving high-level signaling and reflecting from the acquisition of described high-level signaling Penetrate number information and/or described map offset.

Described first determines unit 110, specifically for the attribute information according to PSCCH resource pool, determines institute State mapping number information and/or described map offset；Wherein, the attribute information of described PSCCH resource pool The PSCCH subframe that cycle wraps and/or described PSCCH resource pool includes including described PSCCH resource pool Quantity；Described PSCCH resource pool is the set of PSCCH subframe；

Described first determines unit 110, specifically for the attribute information according to PSSCH resource pool, determines institute State mapping number information and described map offset；Wherein, the attribute information of described PSSCH resource pool includes The quantity of the PSCCH subframe in the cycle of described PSSCH resource pool and/or described PSSCH resource pool.

Described high-level signaling includes system message；Described mapping number information and described map offset, be used for D2D UE in sending the whole D2D UE in the community of described system message or specifying D2D group enters The determination of the described PSCCH subframe of row.Described high-level signaling also includes radio resource control RRC message；Institute State and map number information and described map offset and be carried on the ProseCommConfig of described RRC information In information unit and/or the configuration information unit relevant to Prose Relay.

In order to solve that the same subframe in the PSCCH cycle is not only configured to PSCCH subframe but also is configured to The conflict of PSSCH subframe, the most described D2D UE also includes that the 3rd determines unit.Described Three determine that unit is for as the PSSCH in the described PSCCH subframe determined with described PSSCH resource pool During subframe overlap, determine that subframe overlapping with described PSCCH subframe in described PSSCH resource pool is not used in Send data message.

In several embodiments provided herein, it should be understood that disclosed equipment and method, Can realize by another way.Apparatus embodiments described above is only schematically, such as, The division of described unit, is only a kind of logic function and divides, and actual can have other division when realizing Mode, such as: multiple unit or assembly can be in conjunction with, or are desirably integrated into another system, or some are special Levy and can ignore, or do not perform.It addition, the coupling each other of shown or discussed each ingredient, Or direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, equipment or unit or logical Letter connect, can be electrical, machinery or other form.

The above-mentioned unit illustrated as separating component can be or may not be physically separate, makees The parts shown for unit can be or may not be physical location, i.e. may be located at a place, Can also be distributed on multiple NE；Can select according to the actual needs therein partly or entirely Unit realizes the purpose of the present embodiment scheme.

It addition, each functional unit in various embodiments of the present invention can be fully integrated into a processing module In, it is also possible to it is that each unit is individually as a unit, it is also possible to two or more unit collection Become in a unit；Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ Hardware adds the form of SFU software functional unit and realizes.

One of ordinary skill in the art will appreciate that: realize all or part of step of said method embodiment Can be completed by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer-readable Taking in storage medium, this program upon execution, performs to include the step of said method embodiment；And it is aforementioned Storage medium include: movable storage device, read only memory (ROM, Read-Only Memory), Random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various The medium of program code can be stored.

The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to In this, any those familiar with the art, can be easily in the technical scope that the invention discloses Expect change or replace, all should contain within protection scope of the present invention.Therefore, the protection of the present invention Scope should be as the criterion with described scope of the claims.

Claims

1. a resource pool collocation method, it is characterised in that described method includes:

Method the most according to claim 1, it is characterised in that

Described according to described sub-frame configuration bitmap sequence, mapping number information and map offset, carry out subframe Configuration bit graphic sequence maps determines the PSCCH subframe in the PSCCH cycle, including:

Method the most according to claim 1 and 2, it is characterised in that

Or

Or,

Method the most according to claim 1, it is characterised in that

The side chain sent in described PSCCH subframe determined by mapping at kth time subframe configuration bit graphic sequence Road controls information, is used for the PSSCH subframe being used for carrying out data transmission of instruction in the range of from subframe s To subframe t；

Wherein, described PSSCH resource pool includes at least one PSSCH subframe.

Method the most according to claim 1, it is characterised in that

The described mapping number information determining described sub-frame configuration bitmap sequence and map offset, including following At least one:

Described PSSCH resource pool includes at least one PSSCH subframe.

Method the most according to claim 5, it is characterised in that

Described high-level signaling includes system message；

Method the most according to claim 5, it is characterised in that

Described high-level signaling includes radio resource control RRC message；

Method the most according to claim 1, it is characterised in that

Described method also includes:

9. a D2D UE, it is characterised in that described D2DUE includes:

D2D UE the most according to claim 9, it is characterised in that

Described second determines unit, specifically for from the beginning of the initial subframe in described PSCCH cycle, and foundation Described sub-frame configuration bitmap sequence carries out described sub-frame configuration bitmap sequence mapping for the first time；Wherein, described The initial subframe in PSCCH cycle is first subframe in the described PSCCH cycle.

11. according to the D2D UE described in claim 9 or 10, it is characterised in that

Described second determines unit, also particularly useful for from the m time described sub-frame configuration bitmap sequence mapping Beginning subframe starts, and carries out sub-frame offset according to described map offset, determines the m+1 time subframe configuration bit figure The initial subframe of sequence mapping；Wherein, the initial son of described the m time described sub-frame configuration bitmap sequence mapping Frame is in described the m time described sub-frame configuration bitmap sequence mapping, in described sub-frame configuration bitmap sequence The subframe that one indicating bit is corresponding；

Or

Or,

12. D2D UE according to claim 9, it is characterised in that

Wherein, described PSSCH resource pool includes at least one PSSCH subframe.

13. D2D UE according to claim 9, it is characterised in that

Described first determines unit, specifically for based on preconfigured information, determine described mapping number information and/ Or described map offset；And/or,

Described PSSCH resource pool includes at least one PSSCH subframe.

14. D2D UE according to claim 13, it is characterised in that

Described high-level signaling includes system message；

15. D2D UE according to claim 13, it is characterised in that

Described high-level signaling includes radio resource control RRC message；

16. D2D UE according to claim 9, it is characterised in that

Described D2D UE also includes:

3rd determines unit, for when in the described PSCCH subframe determined with described PSSCH resource pool PSSCH subframe overlap time, determine in described PSSCH resource pool overlapping with described PSCCH subframe Subframe is not used in transmission data message.