CN105025576A - Method and device for resource allocation in D2D communication - Google Patents
Method and device for resource allocation in D2D communication Download PDFInfo
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Abstract
The invention provides a method and a device for resource allocation in D2D communication. In order to solve the problem that a piece of D2D sending UE may be configured as a downlink sub frame by a dynamic signaling through a RPT indicated by SA in an eIMTA scene, the invention discloses a solution. A piece of D2D sending UE sends physical layer data on N D2D resource blocks, wherein the N D2D resource blocks are D2D resource blocks of a RPT in a first scheduling time window or D2D resource blocks for configuring sub frames to which the RPT belongs in all scheduling time windows as uplink sub frames, and each scheduling time window is a TDD frame structure update time window. As an embodiment, the D2D sending UE indicates the length of the scheduling time window by sending SA. By adopting the method and the device of the invention, the situation in which D2D sending UE and D2D receiving UE understand D2D resource blocks of actually transmitted physical layer data differently is avoided, and D2D communication can be performed in an eIMTA scene. In addition, the method and the device are compatible with the existing meeting conclusions about D2D communication and eIMTA, and have good compatibility.
Description
Technical field
The present invention relates to D2D(Device to Device, device is to device) scheme of scheduling in communication, particularly relate to based on LTE(Long Term Evolution, Long Term Evolution) resource scheduling scheme of D2D.
Background technology
Traditional 3GPP(3rd Generation Partner Project, third generation partner program) in LTE system, transfer of data occurs in base station and UE(User Equipment, subscriber equipment) between.In 3GPP R12, D2D communication is also discussed by project verification, and the essential characteristic of D2D allows the transfer of data between UE.For FDD(Frequency Division Duplex, Frequency Division Duplexing (FDD)) and TDD(Time Division Duplex, time division duplex) system, 3GPP at RAN1(Radio Access Network Working Group1, wireless access network first working group) conclusion that #73 meeting is reached is: the UE in D2D system does not allow to receive and dispatch simultaneously.Further, in order to avoid the interference that downlink data communicates to D2D, UE takies the upstream band of traditional ascending resource and FDD or the sub-frame of uplink of TDD communicates (TDD descending sub frame needs to be discussed further) for D2D.In RAN1#76bis meeting, have passed as drawn a conclusion:
-for the UE in MPS process, base station utilizes PDCCH(Physical DownlinkControl Channel) or EPDCCH(Enhanced PDCCH, the PDCCH strengthened) to D2D send UE divide to be used in send SA(Scheduling Assignment, scheduling configuration) and the resource of physical layer data.
SIB(System Information Block is passed through in-base station, system information block) be configured for the candidate resource pond receiving or send SA.
Explicit or the implicit expression in-base station configures one or more RPT(resource patternsfor transmission, sends resource map), a RPT is mapped to multiple D2D Resource Block for transmitting data in physical layer.The instruction of RPT or implicit expression explicit by SA.
Traditional LTE system adopts SIB to configure tdd frame structure, and the fastest configuration cycle is 640ms(millisecond, millisecond).3GPP R12 also introduces eIMTA(enhancedInterference Management Traffic Adaptation, the interference management service adaptation strengthened) technology, namely by the tdd frame structure in dynamic signaling configuration tdd frame topology update time window, the length of described tdd frame topology update time window is the tdd frame structure reprovision cycle, and the described tdd frame structure reprovision cycle is { 10,20,40,80,640}ms(millisecond, millisecond) in one.
Inventor is found by research, and in eIMTA scene, the D2D transmission UE be in MPS process maps its D2D Resource Block dispatched by the RPT that SA indicates, and following problems may be encountered:
The Resource Block that may have part in multiple D2D Resource Block that-RPT maps is descending sub frame by dynamic signal deployment, and described D2D transmission UE can not send data at descending sub frame, namely cannot dispatch corresponding D2D Resource Block.
For the problems referred to above, the invention discloses the resource allocation methods in a kind of D2D communication and device.
Summary of the invention
The invention discloses a kind of method in UE, it is characterized in that, comprise the steps:
Steps A. receive downlink signaling and obtain tdd frame structure reprovision cycle of first carrier and the first frame structure, the tdd frame structure that the first frame structure is first carrier in the first scheduling time window
Step B. sends SA, described SA explicit or implicit expression instruction RPT
Step C. sends physical layer data on N number of D2D Resource Block of first carrier, and described N is positive integer
Wherein, the described tdd frame structure reprovision cycle is T millisecond, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, described T is { 10,20,40,80, one in 640}, described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is configured to the D2D Resource Block of sub-frame of uplink.
Described scheduling time, window was a tdd frame topology update time window.
The described tdd frame structure reprovision cycle is configured by high-level signaling, and the first frame structure is by SIB or Dynamic controlling signal deployment.The described explicit bit that described SA comprises instruction RPT that refers to.Described implicit expression refers to that RPT indicates by transmitting the position of running time-frequency resource in candidate's running time-frequency resource pond that described SA uses.Described candidate's running time-frequency resource pond is configured by descending high-level signaling.Belonging to described N number of D2D Resource Block, subframe is configured to sub-frame of uplink.
Described tdd frame topology update time window comprise radio frames mT/10, mT/10+1 ..., (m+1) T/10-1}, wherein m is the index of described tdd frame topology update time window, and m is integer.
As an embodiment, described D2D Resource Block takies an integer OFDM(OrthogonalFrequency Division Multiplexing, OFDM) symbol or SC-FDMA(Single Carrier Frequency Division Multiple Address, single-carrier frequency division multiple access) symbol.
As an embodiment, described SA comprises the MCS of described physical layer data.As another embodiment, described SA comprises the ID of 8 bits, and described ID is used for the generation of the scrambler sequence of described physical layer data.
Concrete, according to an aspect of the present invention, it is characterized in that, one of described SA instruction is following:
T described in-option A.
Described in-option B., whether K D2D Resource Block is distributed in a tdd frame topology update time window.
As an embodiment, described SA comprises the bit indicating described T.As an embodiment, described SA comprises a bit and indicates described option B.As another embodiment, transmit the position instruction instruction described B of running time-frequency resource in candidate's running time-frequency resource pond that described SA uses.
Concrete, according to an aspect of the present invention, it is characterized in that, described N number of D2D Resource Block is that described option one, RPT comprises and only comprises described N number of D2D Resource Block.
The essence of above-mentioned aspect is that RPT implicit expression indicates the described tdd frame structure reprovision cycle.As an embodiment, base station is configured with multiple RPT, and the radio frames number of the D2D Resource Block distribution that described multiple RPT comprises is different.
Concrete, according to an aspect of the present invention, it is characterized in that, first scheduling time window initial radio frames indicated by described SA implicit expression.
As an embodiment, first scheduling time window initial radio frames be first radio frames after the radio frames belonging to last subframe in candidate's running time-frequency resource pond of described SA.As another embodiment, first scheduling time window initial radio frames be described SA after first radio frames belonging to subframe being configured for D2D transmitting data in physical layer by downlink signaling.
Concrete, according to an aspect of the present invention, it is characterized in that, if described N number of D2D Resource Block is described option two, also comprise the steps:
Subframe outside described N number of D2D Resource Block of step D. in RPT receives downstream signal.
Concrete, according to an aspect of the present invention, it is characterized in that, described N number of D2D Resource Block is described option two, and described SA indicates described option B.
Concrete, according to an aspect of the present invention, it is characterized in that, described downlink signaling is that the Serving cell of described UE sends.
The invention discloses a kind of method in UE, it is characterized in that, comprise the steps:
Steps A. receive SA, described SA explicit or implicit expression instruction RPT
Step B. receives physical layer data on N number of D2D Resource Block of first carrier, and described N is positive integer
Wherein, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, and described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is determine the D2D Resource Block of sub-frame of uplink, and RPT subframe belonging in all scheduling times window is the D2D Resource Block of correct decoding physical layer data in flexible sub-frame of uplink.
Described scheduling time window to be a length be T millisecond tdd frame topology update time window, described T is the { one in 10,20,40,80,640}.
As an embodiment, describedly determine that sub-frame of uplink is subframe #2, described flexible sub-frame of uplink is subframe #{3,4,7,8,9}.As another embodiment, the sender of described UE and described physical layer data belongs to a Serving cell, describedly determines that sub-frame of uplink is all sub-frame of uplink that described Serving cell is configured by SIB or DCI, and described flexible sub-frame of uplink is empty.As another embodiment, described UE is notified the descending reference frame structure of the Serving cell of described physical layer data sender and up reference frame structure by its Serving cell, describedly determine that sub-frame of uplink is the sub-frame of uplink in described descending reference frame structure, described flexible sub-frame of uplink removes the described subframe determining sub-frame of uplink in the sub-frame of uplink of described up reference frame structure.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps: before described steps A
Steps A 0. receives the tdd frame structure reprovision cycle of the Serving cell belonging to sender at first carrier that downlink signaling obtains described physical layer data, and the described tdd frame structure reprovision cycle is T millisecond.
Concrete, according to an aspect of the present invention, it is characterized in that, one of described SA instruction is following:
T described in-option A.
Described in-option B., whether K D2D Resource Block is distributed in a tdd frame topology update time window.
Concrete, according to an aspect of the present invention, it is characterized in that, described N number of D2D Resource Block is that described option one, RPT comprises and only comprises described N number of D2D Resource Block.
The essence of above-mentioned aspect is that RPT implicit expression indicates the described tdd frame structure reprovision cycle.As an embodiment, base station is configured with multiple RPT, and the radio frames number of described multiple RPT distribution is different.
Concrete, according to an aspect of the present invention, it is characterized in that, first scheduling time window initial radio frames indicated by described SA implicit expression.
As an embodiment, first scheduling time window initial radio frames be first radio frames after the radio frames belonging to last subframe in candidate's running time-frequency resource pond of described SA.As another embodiment, first scheduling time window initial radio frames be described SA after first radio frames belonging to subframe being configured for D2D transmitting data in physical layer by downlink signaling.
Concrete, according to an aspect of the present invention, it is characterized in that, described N number of D2D Resource Block is described option two, and described SA indicates described option B.
Concrete, according to an aspect of the present invention, it is characterized in that, described downlink signaling is that the Serving cell of described UE sends.
The invention discloses a kind of method in base station, it is characterized in that, comprise the steps:
Steps A. the feeding back signaling receiving source base station obtains the tdd frame structure reprovision cycle of source base station on first carrier
Step B. sends downlink signaling and indicates the described tdd frame structure reprovision cycle, and the described tdd frame structure reprovision cycle is T millisecond, and described T is { one in 10,20,40,80,640}.
As an embodiment, described feeding back signaling is transmitted by X2 interface.
The invention discloses a kind of subscriber equipment, it is characterized in that, this equipment comprises:
First module: obtain tdd frame structure reprovision cycle of first carrier and the first frame structure for receiving downlink signaling, the tdd frame structure that the first frame structure is first carrier in the first scheduling time window
Second module: for sending SA, described SA explicit or implicit expression instruction RPT
3rd module: for sending physical layer data on N number of D2D Resource Block of first carrier, described N is positive integer
Wherein, the described tdd frame structure reprovision cycle is T millisecond, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, described T is { 10,20,40,80, one in 640}, described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is configured to the D2D Resource Block of sub-frame of uplink.
Described scheduling time, window was a tdd frame topology update time window.
The invention discloses a kind of subscriber equipment, it is characterized in that, this equipment comprises:
First module: for receiving SA, described SA explicit or implicit expression instruction RPT
Second module: for receiving physical layer data on N number of D2D Resource Block of first carrier, described N is positive integer
Wherein, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, and described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is determine the D2D Resource Block of sub-frame of uplink, and RPT subframe belonging in all scheduling times window is the D2D Resource Block of correct decoding physical layer data in flexible sub-frame of uplink.
Described scheduling time window to be a length be T millisecond tdd frame topology update time window, described T is the { one in 10,20,40,80,640}.
The invention discloses a kind of base station equipment, it is characterized in that, this equipment comprises:
First module: the feeding back signaling for receiving source base station obtains the tdd frame structure reprovision cycle of source base station on first carrier
Second module: indicate the described tdd frame structure reprovision cycle for sending downlink signaling, the described tdd frame structure reprovision cycle is T millisecond, and described T is { one in 10,20,40,80,640}.
The RPT indicated by SA for D2D transmission UE in eIMTA scene may be this problem of descending sub frame by dynamic signal deployment, the invention discloses a solution.D2D sends UE and send physical layer data on N number of D2D Resource Block of first carrier, and described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is configured to the D2D Resource Block of sub-frame of uplink.
Described scheduling time, window was a tdd frame topology update time window.As an embodiment, it is long by the window sending SA instruction window of described scheduling time that D2D sends UE.Present invention, avoiding D2D and send UE and D2D reception UE to the different understanding of the D2D Resource Block of actual transmissions physical layer data, thus make D2D communication can perform in eIMTA scene.In addition, the existing meeting conclusion about D2D communication and eIMTA that the present invention is compatible, possesses good compatibility.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more apparent:
Fig. 1 shows the flow chart that D2D according to an embodiment of the invention communicates;
Fig. 2 shows D2D according to an embodiment of the invention and receives the flow chart that UE obtains the tdd frame structure reprovision cycle that D2D transmission UE is configured;
Fig. 3 shows the schematic diagram selecting the D2D Resource Block sent for physical layer data from RPT according to an embodiment of the invention;
Fig. 4 D2D shown according to still another embodiment of the invention sends the processing unit structured flowchart in UE;
Fig. 5 shows the processing unit structured flowchart in D2D according to an embodiment of the invention reception UE;
Fig. 6 shows the processing unit structured flowchart in base station according to an embodiment of the invention;
Embodiment
Hereafter will be described in further detail technical scheme of the present invention by reference to the accompanying drawings, and it should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine arbitrarily mutually.
Embodiment 1
Embodiment 1 illustrates the flow chart of D2D communication, as shown in Figure 1.In accompanying drawing 1, base station N1 is the serving BS of UE U2, and UE U2 is that D2D sends UE, and corresponding D2D receives UE and comprises UE U3.
for UE U2, in the step s 21, receive downlink signaling and obtain tdd frame structure reprovision cycle of first carrier and the first frame structure, the tdd frame structure that the first frame structure is first carrier in the first scheduling time window; In step S22, send SA, described SA explicit or implicit expression instruction RPT; In step S23, N number of D2D Resource Block of first carrier sends physical layer data, and described N is positive integer.Described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is configured to the D2D Resource Block of sub-frame of uplink.
for UE U3, in step S31, receive SA, described SA explicit or implicit expression instruction RPT; In step s 32, N number of D2D Resource Block of first carrier receives physical layer data, that to be N number of D2D Resource Block described in positive integer be described N is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is determine the D2D Resource Block of sub-frame of uplink, and RPT subframe belonging in all scheduling times window is the D2D Resource Block of correct decoding physical layer data in flexible sub-frame of uplink.
In embodiment 1, the described tdd frame structure reprovision cycle is T millisecond, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, described T is { 10,20,40,80, one in 640}, described scheduling time window be a tdd frame topology update time window.
As the sub-embodiment 1 of embodiment 1, one of described SA instruction is following:
T described in-option A.
Described in-option B., whether K D2D Resource Block is distributed in a tdd frame topology update time window.
As the sub-embodiment 2 of embodiment 1, described N number of D2D Resource Block is described option two,
for UE U2, in step s 24 which, the subframe outside the described N number of D2D Resource Block in RPT receives downstream signal.
As the sub-embodiment 3 of embodiment 1, described N number of D2D Resource Block is described option two, and described SA indicates described option B.
Embodiment 2
Embodiment 2 illustrates D2D and receives the flow chart that UE obtains the tdd frame structure reprovision cycle that D2D transmission UE is configured, as shown in Figure 2.In accompanying drawing 2, base station N6 is the serving BS of UE U5.
For base station N6, the feeding back signaling receiving base station N4 in step S61 obtains the tdd frame structure reprovision cycle of source base station on first carrier; In step S62, send downlink signaling indicate the described tdd frame structure reprovision cycle, the described tdd frame structure reprovision cycle is T millisecond.
For UE U5, in step s 51, receive the tdd frame structure reprovision cycle of the Serving cell belonging to sender at first carrier that downlink signaling obtains described physical layer data, the described tdd frame structure reprovision cycle is T millisecond.
In embodiment 2, described feeding back signaling is X2 interface signaling, and described T is { one in 10,20,40,80}.
Embodiment 3
Embodiment 3 illustrates the schematic diagram selecting the D2D Resource Block sent for physical layer data from RPT, as shown in Figure 3.In accompanying drawing 3, the lattice of mark SA is the Resource Block of transmission SA, and the lattice of mark D1 ~ D4 is the D2D Resource Block for sending physical layer data.
uE is sent for D2D, first receive downlink signaling and obtain tdd frame structure reprovision cycle of first carrier and the first frame structure, the tdd frame structure that the first frame structure is first carrier in the first scheduling time window; Then SA is sent, described SA explicit or implicit expression instruction RPT; Then on N number of D2D Resource Block of first carrier, send physical layer data, described N is positive integer.Described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is configured to the D2D Resource Block of sub-frame of uplink.
uE is received for D2D, first receive SA, described SA explicit or implicit expression instruction RPT; Then on N number of D2D Resource Block of first carrier, receive physical layer data, described N is positive integer, and described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is determine the D2D Resource Block of sub-frame of uplink, and RPT subframe belonging in all scheduling times window is the D2D Resource Block of correct decoding physical layer data in flexible sub-frame of uplink.
In embodiment 3, the described tdd frame structure reprovision cycle is T millisecond, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, described T is { 10,20,40,80, one in 640}, described scheduling time window be a tdd frame topology update time window.Resource Block in described SA SA candidate resource pond in fig 2 sends, and described RPT comprises the some or all of Resource Block in D1 ~ D4.
As the sub-embodiment 1 of embodiment 3, the D2D Resource Block (D1 ~ D4, described K are 4) that described RPT comprises be distributed in first scheduling time window and the second scheduling time window on.If described N number of D2D Resource Block is option one, described N number of D2D Resource Block is the lattice that D1 and D2(overstriking collimation mark is known); If described N number of D2D Resource Block is option two, described N number of D2D Resource Block is the lattice of D1 and D3(oblique line mark, and subframe belonging to D1 and D3 is configured to the sub-frame of uplink that D2D sends UE, and subframe belonging to D2 and D4 is configured to the descending sub frame that D2D sends UE).
As the sub-embodiment 2 of embodiment 3, the D2D Resource Block that described RPT comprises is distributed in a scheduling time window with the D2D Resource Block that the long change-described RPT of scheduling time window comprises.Described N number of D2D Resource Block is the Resource Block that described RPT comprises.Respective figure 2, the D2D Resource Block that described RPT comprises is D1 and D2, or comprises D3 and D4.
Initial radio frames as sub-embodiment 3, the first scheduling time window of embodiment 3 is indicated by described SA implicit expression.First scheduling time window be first (namely the earliest one) tdd frame topology update time window that the D2D Resource Block that comprises of RPT that described SA indicates takies.
Embodiment 4
Embodiment 4 is processing unit structured flowcharts that D2D sends in UE, as shown in Figure 4.In accompanying drawing 4, UE processing unit 200 is by receiver module 201, sending module 202, and sending module 203 and receiver module 204 form, and wherein receiver module 204 is optional modules.
Receiver module 201 obtains tdd frame structure reprovision cycle of first carrier and the first frame structure for receiving downlink signaling, the tdd frame structure that the first frame structure is first carrier in the first scheduling time window; Sending module 202 for sending SA, described SA explicit or implicit expression instruction RPT; Sending module 203 for sending physical layer data on N number of D2D Resource Block of first carrier, and described N is positive integer.
In embodiment 4, the described tdd frame structure reprovision cycle is T millisecond, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, described T is { 10,20,40,80, one in 640}, described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is configured to the D2D Resource Block of sub-frame of uplink.
Described scheduling time, window was a tdd frame topology update time window.
As the sub-embodiment 1 of embodiment 4, described N number of D2D Resource Block is described option two, and processing unit 200 also comprises receiver module 204, and the subframe of receiver module 204 outside the described N number of D2D Resource Block in RPT receives downstream signal.
As the sub-embodiment 2 of embodiment 4, described N number of D2D Resource Block is that described option one, RPT comprises and only comprises described N number of D2D Resource Block.
Embodiment 5
Embodiment 5 is processing unit structured flowcharts that D2D receives in UE, as shown in Figure 5.In accompanying drawing 5, UE processing unit 300 is by receiver module 301, receiver module 302, and receiver module 303 forms, and wherein receiver module 301 is optional modules.
Receiver module 302 for receiving SA, described SA explicit or implicit expression instruction RPT; Receiver module 303 for receiving physical layer data on N number of D2D Resource Block of first carrier, and described N is positive integer.
In embodiment 5, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, and described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is determine the D2D Resource Block of sub-frame of uplink, and RPT subframe belonging in all scheduling times window is the D2D Resource Block of correct decoding physical layer data in flexible sub-frame of uplink.
Described scheduling time window to be a length be T millisecond tdd frame topology update time window, described T is the { one in 10,20,40,80,640}.
As the sub-embodiment 1 of embodiment 5, processing unit 300 also comprises receiver module 301, receiver module 301 obtains the tdd frame structure reprovision cycle of the Serving cell belonging to sender at first carrier of described physical layer data for receiving downlink signaling, the described tdd frame structure reprovision cycle is T millisecond.
As the sub-embodiment 2 of embodiment 5, one of described SA instruction is following:
T described in-option A.
Described in-option B., whether K D2D Resource Block is distributed in a tdd frame topology update time window.
Embodiment 6
Embodiment 6 is the processing unit structured flowcharts in base station, as shown in Figure 6.In accompanying drawing 6, base station processing unit 400 is by receiver module 401, and sending module 402 forms.
Receiver module 401 obtains the tdd frame structure reprovision cycle of source base station on first carrier for the feeding back signaling receiving source base station; Sending module 402 indicates the described tdd frame structure reprovision cycle for sending downlink signaling, and the described tdd frame structure reprovision cycle is T millisecond, and described T is { one in 10,20,40,80,640}.
In embodiment 6, described downlink signaling is high-level signaling.
The all or part of step that one of ordinary skill in the art will appreciate that in said method can be carried out instruction related hardware by program and complete, and described program can be stored in computer-readable recording medium, as read-only memory, and hard disk or CD etc.Optionally, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Accordingly, each modular unit in above-described embodiment, can adopt example, in hardware to realize, and also can be realized by the form of software function module, the application is not limited to the combination of the software and hardware of any particular form.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improves, all should be included within protection scope of the present invention.
Claims (18)
1. the method in UE, is characterized in that, comprises the steps:
Steps A. receive downlink signaling and obtain tdd frame structure reprovision cycle of first carrier and the first frame structure, the tdd frame structure that the first frame structure is first carrier in the first scheduling time window
Step B. sends SA, described SA explicit or implicit expression instruction RPT
Step C. sends physical layer data on N number of D2D Resource Block of first carrier, and described N is positive integer
Wherein, the described tdd frame structure reprovision cycle is T millisecond, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, described T is { 10,20,40,80, one in 640}, described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is configured to the D2D Resource Block of sub-frame of uplink.
Described scheduling time, window was a tdd frame topology update time window.
2. method according to claim 1, is characterized in that, one of described SA instruction is following:
T described in-option A.
Described in-option B., whether K D2D Resource Block is distributed in a tdd frame topology update time window.
3. method according to claim 1, is characterized in that, described N number of D2D Resource Block is that described option one, RPT comprises and only comprises described N number of D2D Resource Block.
4. method according to claim 1, is characterized in that, first scheduling time window initial radio frames indicated by described SA implicit expression.
5. method according to claim 1, is characterized in that, if described N number of D2D Resource Block is described option two, also comprises the steps:
Subframe outside described N number of D2D Resource Block of step D. in RPT receives downstream signal.
6. method according to claim 2, is characterized in that, described N number of D2D Resource Block is described option two, and described SA indicates described option B.
7. the method according to claim 1-6, is characterized in that, described downlink signaling is that the Serving cell of described UE sends.
8. the method in UE, is characterized in that, comprises the steps:
Steps A. receive SA, described SA explicit or implicit expression instruction RPT
Step B. receives physical layer data on N number of D2D Resource Block of first carrier, and described N is positive integer
Wherein, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, and described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is determine the D2D Resource Block of sub-frame of uplink, and RPT subframe belonging in all scheduling times window is the D2D Resource Block of correct decoding physical layer data in flexible sub-frame of uplink.
Described scheduling time window to be a length be T millisecond tdd frame topology update time window, described T is the { one in 10,20,40,80,640}.
9. method according to claim 8, is characterized in that, also comprises the steps: before described steps A
Steps A 0. receives the tdd frame structure reprovision cycle of the Serving cell belonging to sender at first carrier that downlink signaling obtains described physical layer data, and the described tdd frame structure reprovision cycle is T millisecond.
10. method according to claim 8, is characterized in that, one of described SA instruction is following:
T described in-option A.
Described in-option B., whether K D2D Resource Block is distributed in a tdd frame topology update time window.
11. methods according to claim 8, is characterized in that, described N number of D2D Resource Block is that described option one, RPT comprises and only comprises described N number of D2D Resource Block.
12. methods according to claim 8, is characterized in that, first scheduling time window initial radio frames indicated by described SA implicit expression.
13. methods according to claim 9, is characterized in that, described downlink signaling is that the Serving cell of described UE sends.
14. methods according to claim 10, is characterized in that, described N number of D2D Resource Block is described option two, and described SA indicates described option B.
Method in 15. 1 kinds of base stations, is characterized in that, comprise the steps:
Steps A. the feeding back signaling receiving source base station obtains the tdd frame structure reprovision cycle of source base station on first carrier
Step B. sends downlink signaling and indicates the described tdd frame structure reprovision cycle, and the described tdd frame structure reprovision cycle is T millisecond, and described T is { one in 10,20,40,80,640}.
16. 1 kinds of subscriber equipmenies, is characterized in that, this equipment comprises:
First module: obtain tdd frame structure reprovision cycle of first carrier and the first frame structure for receiving downlink signaling, the tdd frame structure that the first frame structure is first carrier in the first scheduling time window
Second module: for sending SA, described SA explicit or implicit expression instruction RPT
3rd module: for sending physical layer data on N number of D2D Resource Block of first carrier, described N is positive integer
Wherein, the described tdd frame structure reprovision cycle is T millisecond, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, described T is { 10,20,40,80, one in 640}, described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is configured to the D2D Resource Block of sub-frame of uplink.
Described scheduling time, window was a tdd frame topology update time window.
17. 1 kinds of subscriber equipmenies, is characterized in that, this equipment comprises:
First module: for receiving SA, described SA explicit or implicit expression instruction RPT
Second module: for receiving physical layer data on N number of D2D Resource Block of first carrier, described N is positive integer
Wherein, RPT comprises K D2D Resource Block, and described K is the positive integer being not less than described N, and described D2D Resource Block takies the resource being no more than a subframe in time domain, and described N number of D2D Resource Block is one of following:
The D2D Resource Block of-option one .RPT in the first scheduling time window
-option two .RPT subframe belonging in all scheduling times window is determine the D2D Resource Block of sub-frame of uplink, and RPT subframe belonging in all scheduling times window is the D2D Resource Block of correct decoding physical layer data in flexible sub-frame of uplink.
Described scheduling time window to be a length be T millisecond tdd frame topology update time window, described T is the { one in 10,20,40,80,640}.
18. 1 kinds of base station equipments, is characterized in that, this equipment comprises:
First module: the feeding back signaling for receiving source base station obtains the tdd frame structure reprovision cycle of source base station on first carrier
Second module: indicate the described tdd frame structure reprovision cycle for sending downlink signaling, the described tdd frame structure reprovision cycle is T millisecond, and described T is { one in 10,20,40,80,640}.
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