CN104427631B - A kind of D2D transmission method and device - Google Patents
A kind of D2D transmission method and device Download PDFInfo
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- 238000013507 mapping Methods 0.000 claims description 27
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W28/26—Resource reservation
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- H—ELECTRICITY
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Abstract
The scheme that the invention proposes a kind of to avoid D2D data and the specific SRS of cell from interfering in D2D communication.In one embodiment, UE receive additional signaling make participate in D2D data transmit-receive UE can determine that reserved C-SRS resource.By using technical solution provided in the present invention, avoid the interference between cell D2D data and the SRS of cell scheduling, when the UE of especially participation D2D data transmit-receive belongs to multiple serving cells, UE can not determine reserved this problem of C-SRS resource, utmostly maintain the compatibility with existing system.
Description
Technical field
The present invention relates to the schemes of subframe scheduling in D2D system, more particularly to based on long term evolution (LTE-Long
Term Evolution) device is to the subframe scheduling scheme of device (D2D-Device to Device) framework.
Background technique
Traditional third generation cooperative partner program (3GPP-3rd Generation Partner Project) long term evolution
In (LTE-Long Term Evolution) system, two kinds of frame structures, i.e. frequency division duplex (FDD-Frequency are defined
Division Duplex) frame structure 1 of system and the frame structure of time division duplex (TDD-Time Division Duplex) system
2.The difference of the two is that each subframe of FDD frame structure is 1 millisecond (ms-millisecond), and TDD system is in each frame
1~2 special subframe is defined in (10 subframes), special subframe is by downlink synchronization slot (DwPTS-Downlink Pilot
Time Slot), protection interval (GP-Guard Period), uplink synchronous time slot (UpPTS-Uplink Pilot Time
Slot) three parts are constituted.
LTE system uses interception reference signal (SRS-Sounding Reference Signal) and makes system equipment
Side can obtain up channel parameter (and down channel parameters of TDD system), the normal sub-frames of subframe and TDD for FDD,
SRS is multiplexed (SC-FDMA:Single Carrier-Frequency Division in the last one single carrier frequency division
Multiple Access) it sends on symbol, in the special subframe of TDD, SRS can occupy the SC- in one or two UpPTS
FDMA symbol (special subframe the last one or two SC-FDMA symbols).LTE system supports semi-persistent scheduling (SPS-
Semi-persistent Scheduling) SRS and dynamic dispatching (DS-Dynamic Scheduling) SRS.LTE passes through (small
Area is public) RRC signaling SoundingRS-UL-ConfigCommon information particle (IE-Information Element) instruction
The reserved SRS resource in current area.Contained in the SoundingRS-UL-ConfigCommon reserved SRS subframe and
SRS bandwidth.
In traditional 3GPP version, data transmission occurs between base station and user equipment (UE-User Equipment).
In 3GPP R12, device is set up the project and is discussed to device (D2D-Device to Device) communication, and the essence of D2D is special
Point is that the data between UE is allowed to transmit.For FDD and TDD system, 3GPP is in the first working group of wireless access network the 73rd
The conclusion that secondary meeting (RAN1#73) is reached is: the UE in D2D system does not allow to receive and dispatch simultaneously.Further, in order to avoid downlink
The interference that data communicate D2D, UE occupy the sub-frame of uplink of the traditional ascending resource i.e. upstream band of FDD and subframe (TDD)
(TDD downlink subframe needs to be further discussed) is communicated for D2D.
In order to be distinguish with D2D data, we are by cell in SoundingRS-UL-ConfigCommon in the present invention
IE reserves the SRS dispatched in resource and is known as C-SRS (Cell specific SRS).Belonging to UE in D2D data and D2D cluster
The SRS resource reserved in serving cell may collide and generate interference, and the D2D cluster, which refers to, participates in 2 that D2D is communicated
Or multiple UE set.Solving the interference of D2D data and C-SRS on ascending resource the invention discloses a kind of method, this is asked
Topic.
Summary of the invention
The invention discloses a kind of methods communicated in user equipment (UE), wherein includes the following steps:
A. operation scheduling control signaling (SCI), the operation are to receive or send
Wherein, if the mapping resource M of the SCI and reserved cell interception reference signal (C-SRS) running time-frequency resource R have
It is overlapping, the data resource S of the SCI scheduling do not include it is described overlap occupied symbol, the running time-frequency resource R include at least with
It is one of lower:
The C-SRS running time-frequency resource R1 that serving cell belonging to current is reserved, if outside MPS process, the time-frequency
Resource R1 is sky
It is the running time-frequency resource R2 of D2D communication reservation.
If D2D scheduling is also to use subframe for the scheduling of unit, the subframe that the mapping resource M is dispatched by the SCI
It is determined with the bandwidth of SCI scheduling.As one embodiment, the SCI is dynamic signaling and the uplink tune for reusing LTE system
Timing is spent, then for FDD system, the mapping resource M is in the 4th subframe after the transmission subframe of the SCI
The bandwidth resources of the SCI scheduling.
Further, if the mapping resource M is normal sub-frames (not being the special subframe of TDD), described overlap is
Refer to that the last one SC-FDMA symbol of the subframe of the SCI scheduling is reserved for the bandwidth of C-SRS subframe and SCI scheduling
It is overlapped in whole or in part with the bandwidth for being reserved as C-SRS.
The SCI be dispatch D2D communication control signaling, by system equipment be sent to participate in D2D data transmit-receive UE or
Person is that D2D cluster head UE is sent to the UE for participating in D2D data transmit-receive, or the UE of participation D2D data transmit-receive is sent to participation D2D
The UE of data transmit-receive.The SCI is DS signaling or SPS signaling, and the SCI is reused existing DCI and either born using new
Carry size and bit connotation；The data resource S is for carrying data (including control information) and demodulated reference signal；If will
To devise new D2D SRS and not in the last symbol of subframe, the data resource S is also used for carrying the D2D
SRS；The symbol is SC-FDMA symbol.If the SCI can also be raised in addition to scheduling data resource in the running time-frequency resource R
SRS is spent, then sends SRS in corresponding position.
If containing protection interval (GP-Guard Period) in resource scheduled in D2D to prolong to avoid due to propagating
When or reiving/transmitting state handoff delay caused by interference, the data resource S includes the GP.It is described as one embodiment
It is 0,1,2 ..., 13 that data resource S draws comprising 14 symbol-symbols, and wherein symbol 1~12 carries data, and symbol 0,13 is made
Data are not carried for GP.As another embodiment, it is 0,1 that the data resource S draws comprising 13 symbol-symbols,
2 ..., 12, wherein symbol 1~11, the latter half of symbol 0 and the first half of symbol 12 carry data, before symbol 0
The latter half of half part and symbol 12 does not carry data as GP, does not include (the mapping resource of the i.e. described SCI of symbol 13
M and reserved cell interception reference signal (C-SRS) running time-frequency resource R has overlapping).
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
B. it is sent on the data resource S according to the instruction of the SCI or receiving device is to equipment (D2D) signal.
Specifically, according to an aspect of the present invention, which is characterized in that it is characterized in that, including C-SRS in the SCI
Indicate information, C-SRS instruction information indicates whether the data resource S includes described overlapping occupied symbol.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps before the step:
A0_1. SoundingRS-UL-ConfigCommon IE is received on the channel resource of system equipment to UE with true
The fixed running time-frequency resource R1.
The SoundingRS-UL-ConfigCommon is the cell common radio resources control that LTE system issues
(RRC-Radio Resource Control) signaling.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps before the step:
A0_2. the first signaling is received on the channel resource of system equipment to UE with the determination running time-frequency resource R2, first
Signaling be the specific RRC signaling of UE either the specific RRC signaling of UE group, the first signaling include at least C-SRS sub-frame information with
C-SRS bandwidth information.
The UE specifically refers to that particular UE can receive, and the UE group specifically refers to that the UE in particular UE group can be received.
The C-SRS sub-frame information indicates the subframe that can transmit C-SRS, and the C-SRS bandwidth information indicates C-SRS in the C-
Occupied bandwidth in SRS subframe.As one embodiment, the C-SRS sub-frame information and C-SRS bandwidth information difference
It is one group of srs-SubframeConfig and srs-BandwidthConfig, it is small is used to indicate service belonging to a UE in D2D cluster
The reserved C-SRS information in area.As another embodiment, the C-SRS sub-frame information and the C-SRS bandwidth information are respectively
Multiple groups srs-SubframeConfig and srs-BandwidthConfig are used to indicate multiple affiliated serving cells of UE in D2D cluster
Reserved C-SRS information.Above-mentioned srs-SubframeConfig and srs-BandwidthConfig is used in LTE system respectively
In the instruction of configuration cell public C-SRS sub-frame information and the public C-SRS bandwidth information of cell.
As another embodiment, the C-SRS sub-frame information includes 10 bits, and one in each bit indication frame
Whether subframe can transmit C-SRS, and corresponding each subframe that can transmit C-SRS provides one group of srs-BandwidthConfig.TDD
In system, if D2D data can be sent in UpPTS, the C-SRS indication signaling also includes the C-SRS band in UpPTS
It is wide.
Specifically, according to another aspect of the present invention, which is characterized in that further include following steps before the step:
A0_3. one or more signaling is received on D2D channel resource with the determination running time-frequency resource R2, it is each described
Signaling includes at least C-SRS sub-frame information and C-SRS bandwidth information.
Each signaling is sent by a UE.There are in the scene for there was only 2 UE in cluster head or D2D cluster altogether, connect
Receive a signaling；D2D cluster has more than 2 UE and there is no in the scene of cluster head, receives multiple signalings.The running time-frequency resource R2 is
Receive the union for the reserved C-SRS resource that all signalings obtain.
Specifically, according to another aspect of the present invention, which is characterized in that further include following steps:
A0_4. send third signaling with indicate it is current belonging to the C-SRS running time-frequency resource R1 that reserve of serving cell, if located
In outside MPS process, the running time-frequency resource R1 is sky.
Third signaling is sent on D2D channel resource or on cell uplink channel resource, and third signaling reuses srs-
SubframeConfig and srs-BandwidthConfig format.Further, third signaling can also use new format.
The invention discloses a kind of methods communicated in system equipment, wherein includes the following steps:
A. scheduling control signaling (SCI) is sent, the SCI is the control signaling for dispatching D2D communication, the mapping of the SCI
The C-SRS running time-frequency resource R1 that resource M and current service cell are reserved has overlapping
Wherein, if the mapping resource M of the SCI and reserved cell interception reference signal (C-SRS) running time-frequency resource R have
It is overlapping, the data resource S of the SCI scheduling do not include it is described overlap occupied symbol, the running time-frequency resource R include at least with
It is one of lower:
The C-SRS running time-frequency resource R1 that serving cell belonging to current is reserved, if outside MPS process, the time-frequency
Resource R1 is sky
It is the running time-frequency resource R2 of D2D communication reservation.
Specifically, according to another aspect of the present invention, which is characterized in that further include following steps:
B. C-SRS signal is received, the C-SRS signal and the mapping resource M have overlapping
Specifically, according to another aspect of the present invention, which is characterized in that information is indicated comprising C-SRS in the SCI,
C-SRS instruction information indicates whether the data resource S includes described overlapping occupied symbol.
The invention discloses a kind of methods communicated in system equipment, wherein includes the following steps:
A1_2. the first signaling is sent on the channel resource of system equipment to UE to be designated as the time-frequency of D2D communication reservation
Resource R2, the first signaling are the specific RRC signaling of the UE either specific RRC signalings of UE group, and the first signaling includes at least C-SRS
Sub-frame information and C-SRS bandwidth information.
Specifically, above-mentioned aspect according to the present invention, which is characterized in that further include following steps before the step:
A1_1. message is received by X2 interface and obtains the running time-frequency resource R2.
The invention discloses a kind of methods communicated in system equipment, wherein includes the following steps:
The C-SRS running time-frequency resource R1 that the current affiliated serving cell of message instruction is reserved is sent by X2 interface.
The invention discloses a kind of user equipmenies, which is characterized in that the equipment includes:
First module: operation scheduling control signaling (SCI), the operation are to receive or send
Wherein, if the mapping resource M of the SCI and reserved cell interception reference signal (C-SRS) running time-frequency resource R have
It is overlapping, the data resource S of the SCI scheduling do not include it is described overlap occupied symbol, the running time-frequency resource R include at least with
It is one of lower:
The C-SRS running time-frequency resource R1 that serving cell belonging to current is reserved, if outside MPS process, the time-frequency
Resource R1 is sky
It is the running time-frequency resource R2 of D2D communication reservation.
As one embodiment, in above equipment further include:
Second module: sending on the data resource S according to the instruction of the SCI or receiving device is to equipment
(D2D) signal.
Further include at least one in above equipment as another embodiment:
Third module: receiving the first signaling on the channel resource of system equipment to UE with the determination running time-frequency resource R2,
First signaling is the specific RRC signaling of the UE either specific RRC signaling of UE group, and the first signaling is believed including at least C-SRS subframe
Breath and C-SRS bandwidth information.
4th module: one or more signaling is received on D2D channel resource with the determination running time-frequency resource R2, each
The signaling includes at least C-SRS sub-frame information and C-SRS bandwidth information.
As one embodiment, above equipment is characterized in that, indicates information, the C- comprising C-SRS in the SCI
SRS instruction information indicates whether the data resource S includes described overlapping occupied symbol.
The invention discloses a kind of system equipments, which is characterized in that the equipment includes:
First module: sending scheduling control signaling (SCI), and the SCI is the control signaling for dispatching D2D communication, the SCI
Mapping resource M and the C-SRS running time-frequency resource R1 that reserves of current service cell have it is overlapping
Wherein, if the mapping resource M of the SCI and reserved cell interception reference signal (C-SRS) running time-frequency resource R have
It is overlapping, the data resource S of the SCI scheduling do not include it is described overlap occupied symbol, the running time-frequency resource R include at least with
It is one of lower:
The C-SRS running time-frequency resource R1 that serving cell belonging to current is reserved, if outside MPS process, the time-frequency
Resource R1 is sky
It is the running time-frequency resource R2 of D2D communication reservation.
As one embodiment, above equipment is characterized in that, indicates information, the C- comprising C-SRS in the SCI
SRS instruction information indicates whether the data resource S includes described overlapping occupied symbol.
As one embodiment, in above equipment further include:
Second module: receiving C-SRS signal, and the C-SRS signal and the mapping resource M have overlapping
The invention discloses a kind of system equipments, which is characterized in that the equipment includes:
Third module: the running time-frequency resource R2 that message acquisition is D2D communication reservation is received by X2 interface
4th module: sending the first signaling on the channel resource of system equipment to UE to indicate the running time-frequency resource R2,
First signaling is the specific RRC signaling of the UE either specific RRC signaling of UE group, and the first signaling is believed including at least C-SRS subframe
Breath and C-SRS bandwidth information.
5th module: SoundingRS-UL-ConfigCommon information is received on the channel resource of system equipment to UE
Particle (IE) is with the determination running time-frequency resource R1.
The present invention solves the interference between D2D data and the SRS of cell scheduling, especially participation D2D data transmit-receive
When UE belongs to multiple serving cells, UE can not determine reserved C-SRS resource, for this problem, by allowing UE to receive volume
External signalling makes the UE for participating in D2D data transmit-receive can determine that reserved C-SRS resource, the present invention utmostly maintain with it is existing
The compatibility of system.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the flow chart of center control nodes control D2D communication according to an embodiment of the invention；
Fig. 2 shows the flow charts of distributed AC servo system D2D according to an embodiment of the invention communication；
Two UE that Fig. 3 shows D2D communication according to an embodiment of the invention belong to the pre- of different service cells
Stay C-SRS time-frequency resource indication schematic diagram；
Fig. 4 shows two UE according to an embodiment of the invention for belonging to different service cells and carries out D2D communication
Schematic diagram；
Fig. 5 shows the part UE of the D2D according to an embodiment of the invention communication part UE in MPS process
Schematic diagram outside MPS process；
Fig. 6 shows the non-scheduled signaling of the reception in user equipment according to an embodiment of the invention and obtains reserved C-
The processing unit structural block diagram of SRS running time-frequency resource；
Fig. 7 shows the reception dispatch in user equipment according to an embodiment of the invention and obtains reserved C-
The processing unit structural block diagram of SRS running time-frequency resource；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the flow chart of center control nodes control D2D communication, as shown in Fig. 1.In attached drawing 1, center
Control node T1 is that base station either cluster head UE, UE U2 and UE U3 participates in D2D data transmit-receive under the control of T1.
For center control nodes T1, SCI is sent in step s 11, and the SCI is that dynamic dispatching signaling either half is quiet
State dispatch.Wherein, if the mapping resource M of the SCI and reserved cell interception reference signal (C-SRS) running time-frequency resource
R have it is overlapping, the data resource S of SCI scheduling do not include it is described overlap occupied symbol, the running time-frequency resource R includes:
The C-SRS running time-frequency resource R1_T1 that the affiliated serving cell of-T1 is reserved, if outside MPS process, the time-frequency
Resource R1_T1 is sky
When the C-SRS that the C-SRS running time-frequency resource and the affiliated serving cell of U3 that the affiliated serving cell of-U2 is reserved are reserved
The union of frequency resource, i.e. running time-frequency resource R2_T1.
For UE U2, the SCI is received in the step s 21, the scheduling of the SCI is executed in step S22, i.e., in institute
It states and sends data on the data resource S of SCI scheduling.Wherein, if the mapping resource M of the SCI and reserved cell listen to ginseng
Examining signal (C-SRS) running time-frequency resource R has overlapping, and the data resource S of SCI scheduling does not include described overlapping occupied symbol
Number, the running time-frequency resource R includes:
The C-SRS running time-frequency resource R1_U2 that the affiliated serving cell of-U2 is reserved, if outside MPS process, the time-frequency
Resource R1_U2 is sky
When the C-SRS that the C-SRS running time-frequency resource and the affiliated serving cell of T1 that the affiliated serving cell of-U3 is reserved are reserved
The union of frequency resource, i.e. running time-frequency resource R2_U2.
For UE U3, the SCI is received in step S31, executes the scheduling of the SCI in step s 32, i.e., in institute
It states and receives data on the data resource S of SCI scheduling.Wherein, if the mapping resource M of the SCI and reserved cell listen to ginseng
Examining signal (C-SRS) running time-frequency resource R has overlapping, and the data resource S of SCI scheduling does not include described overlapping occupied symbol
Number, the running time-frequency resource R includes:
The C-SRS running time-frequency resource R1_U3 that the affiliated serving cell of-U3 is reserved, if outside MPS process, the time-frequency
Resource R1_U3 is sky
When the C-SRS that the C-SRS running time-frequency resource and the affiliated serving cell of T1 that the affiliated serving cell of-U2 is reserved are reserved
The union of frequency resource, i.e. running time-frequency resource R2_U3.
Embodiment 2
Embodiment 2 illustrates the flow chart of distributed AC servo system D2D communication, as shown in Fig. 2.In attached drawing 2, three UE
U17, U18U19 constitute the D2D UE cluster for participating in D2D communication, wherein each UE can send the receipts of SCI scheduling D2D data
Hair.U17 is illustrated in attached drawing 2 sends SCI scheduling D2D broadcast data transmitting-receiving.
For U17, the first SCI is sent in step S171, in the data resource S of the first SCI scheduling in step S172
Upper transmission data.Wherein, if the mapping resource M of the first SCI and reserved cell interception reference signal (C-SRS) running time-frequency resource
R have it is overlapping, the data resource S do not include it is described overlap occupied symbol, the running time-frequency resource R includes U17, U18, U19
The union for the C-SRS running time-frequency resource that serving cell belonging to respectively is reserved.
For U18, the first SCI is received in step S181, in the data resource S of the first SCI scheduling in step S182
Upper reception data.Wherein, if the mapping resource M of the first SCI and above-mentioned running time-frequency resource R have overlapping, the data resource S is not wrapped
It includes and described overlaps occupied symbol.
For U19, the first SCI is received in step S191, in the data resource S of the first SCI scheduling in step S192
Upper reception data.Wherein, if the mapping resource M of the first SCI and above-mentioned running time-frequency resource R have overlapping, the data resource S is not wrapped
It includes and described overlaps occupied symbol.
Embodiment 3
Two UE that embodiment 3 illustrates D2D communication belong to the reserved C-SRS time-frequency resource indication stream of different service cells
Cheng Tu, as shown in Fig. 3.Wherein, base station N4 is the serving cell of UE U5, and base station N7 is the serving cell of UE U6, U5 and U6
Carry out D2D communication.
For base station N4, signaling H1 is sent by X2 interface in step s 40 and indicates the reserved C- of base station N4 to base station N7
SRS running time-frequency resource R1；The signaling H2 from base station N7 is received by X2 interface in step S41 and obtains the reserved C- of base station N7
SRS running time-frequency resource R2；SUC (SoundingRS-UL-ConfigCommon) is sent in step S42 indicates the running time-frequency resource
R1；Signaling C1 is sent in step S43 and indicates the running time-frequency resource R2, and the signaling C1 is the specific RRC signaling of UE.It is similar
, for base station N7, when sending signaling H2 to the reserved C-SRS of base station N4 instruction base station N7 by X2 interface in step S70
Frequency resource R2；The signaling H1 from base station N4 is received by X2 interface in step S71 and obtains the reserved C-SRS time-frequency of base station N4
Resource R1；SUC (SoundingRS-UL-ConfigCommon) is sent in step S72 indicates the running time-frequency resource R2；In step
Signaling C2 is sent in rapid S73 and indicates the running time-frequency resource R1, and the signaling C2 is the specific RRC signaling of UE.Above-mentioned steps S42 and
S72 has reused the operation in existing LTE version, in fig. 3 with broken line representation.
For UE U5, the SUC IE for receiving serving cell in step s 51 obtains the information of the running time-frequency resource R1,
The information that the signaling C1 obtains the running time-frequency resource R2 is received in step S52.For UE U6, service is received in step S61
The SUC IE of cell obtains the information of the running time-frequency resource R2, and the signaling C2 is received in step S62 and obtains the time-frequency money
The information of source R1.
Embodiment 4
Embodiment 4 illustrates the schematic diagram for belonging to two UE progress D2D communication of different service cells, as shown in Fig. 4.
Wherein, base station N40 is the serving cell of UE U50, and base station N70 is the serving cell of UE U60, and U50 and U60 carry out D2D communication,
Wherein U50 is cluster head UE.
For base station N40, the signaling H2 from base station N70 is received by X2 interface in step S401 and obtains base station N70
Reserved C-SRS running time-frequency resource R2；Signaling C1 is sent in step S402 indicates the running time-frequency resource R1 and the running time-frequency resource
The union of R2, that is, running time-frequency resource R, the signaling C1 is the specific RRC signaling of UE.For base station N70, pass through in step S700
X2 interface sends the signaling H2 C-SRS running time-frequency resource R2 reserved to base station N40 instruction base station N7.
For UE U50, the information that the signaling C1 obtains the running time-frequency resource R is received in step S501；In step
SCI scheduling D2D communication is sent in S502, includes C-SRS instruction information in the SCI, described in the C-SRS instruction information instruction
Whether the mapping resource M of the SCI and running time-frequency resource R has whether the data resource of the overlapping i.e. described SCI scheduling includes overlapping institute
The SC-FDMA symbol (i.e. the last symbols of normal sub-frames)-accounted for is if there is overlapping the data resource of the then SCI scheduling not
Including overlapping shared SC-FDMA symbol, the data resource of the on the contrary then described SCI scheduling includes overlapping shared SC-FDMA symbol
Number；Data are received on the data resource of SCI scheduling in step S503.
For UE U60, the SCI is received in step S602, includes C-SRS instruction information, the C- in the SCI
SRS instruction information indicates whether the mapping resource M of the SCI and the running time-frequency resource R have the data of the overlapping i.e. described SCI scheduling
Whether resource includes overlapping shared SC-FDMA symbol (i.e. the last symbols of normal sub-frames)-if there is overlapping then described
The data resource of SCI scheduling does not include overlapping shared SC-FDMA symbol, and the data resource of the on the contrary then described SCI scheduling includes
Overlap shared SC-FDMA symbol；Data are sent on the data resource of SCI scheduling in step S603.
In embodiment 4, UE U50 is cluster head, is responsible for the scheduling of D2D communication, is indicated using the C-SRS in the SCI
Information indicates the data resource, therefore does not need information of the additional notifications UE U60 about the running time-frequency resource R.
Embodiment 5
Embodiment 5 illustrate D2D communication part UE in MPS process schematic diagram of the part UE outside MPS process,
As shown in Fig. 5.Wherein, base station N10 is the serving cell of UE U11, and UE U12 and UE U13 are in outside MPS process, U11,
U12 and U13 carries out D2D communication.
For base station N10, the reserved C-SRS running time-frequency resource R of signaling C3 instruction is sent in step s101.
For UE U11, signaling D1 from U12 is received respectively in step S110 and step S111 and from the letter of U13
Enable D2, obtain U12 and U13 respectively belonging to the reserved C-SRS resource of serving cell union, that is, running time-frequency resource R2 (R2 is empty set,
I.e. without reserved C-SRS resource)；The SUC IE from serving cell N10 is received in step S112 obtains the reserved C- of N10
SRS running time-frequency resource R1；Signaling D3 is sent in step S113 indicates the running time-frequency resource R1 to U12 and U13.
For UE U12, signaling D1 is sent in the step s 120 and indicates the reserved C-SRS resource of affiliated serving cell, in step
The signaling D2 from U13 and the signaling D3 from U11 are received respectively in rapid S121 and step S122, obtain U13 and U11 respectively institute
Belong to the reserved C-SRS resource of serving cell.
For UE U13, signaling D2 is sent in step S131 and indicates the reserved C-SRS resource of affiliated serving cell, in step
The signaling D1 from U12 and the signaling D3 from U11 are received respectively in rapid S130 and step S132, obtain U12 and U11 respectively institute
Belong to the reserved C-SRS resource of serving cell.
Embodiment 6
Embodiment 6 illustrates the processing dress that the non-scheduled signaling of reception in user equipment obtains reserved C-SRS running time-frequency resource
Structural block diagram is set, as shown in Fig. 6.In attached drawing 6, the processing unit 400 in UE is by resource configuration module 401, signaling manipulation mould
Block 402, data processing module 403 form.
Wherein resource configuration module 401 determines reserved C-SRS running time-frequency resource R, and signaling manipulation module 402 receives or hair
Send scheduling control signaling (SCI), wherein if the mapping resource M of the SCI and the running time-frequency resource R have overlapping, the SCI
The data resource S of scheduling do not include it is described overlap occupied symbol, the running time-frequency resource R includes at least one:
The C-SRS running time-frequency resource R1 that serving cell belonging to current is reserved, if outside MPS process, the time-frequency
Resource R1 is sky
It is the running time-frequency resource R2 of D2D communication reservation.
Data processing module 403 executes the data dispatch of the dispatch SCI, i.e., receives on the data resource S
Or send data.
The resource configuration module 401 includes at least one submodule:
The first signaling is received on the channel resource of system equipment to UE with the determination running time-frequency resource R2, the first signaling
It is the specific high-level signaling of the UE either specific high-level signaling of UE group, the first signaling includes at least C-SRS sub-frame information and C-
SRS bandwidth information.
One or more signaling is received on D2D channel resource with the determination running time-frequency resource R2, each signaling
Including at least C-SRS sub-frame information and C-SRS bandwidth information.
SoundingRS-UL-ConfigCommon information particle (IE) is received on the channel resource of system equipment to UE
With the determination running time-frequency resource R1.
Embodiment 7
Embodiment 7 illustrates the processing unit for receiving dispatch and obtaining reserved C-SRS running time-frequency resource in user equipment
Structural block diagram, as shown in Fig. 7.In attached drawing 7, the processing unit 500 in UE is by signaling manipulation module 501, data processing module
502 compositions.
Wherein signaling manipulation module 501 receives or sends scheduling control signaling (SCI), refers in the SCI comprising C-SRS
Show information, the C-SRS instruction information indicates whether the data resource S includes described overlapping occupied symbol.
Data processing module 502 executes the data dispatch of the dispatch SCI, i.e., receives on the data resource S
Or send data.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be referred to by program
Related hardware is enabled to complete, described program can store in computer readable storage medium, such as read-only memory, hard disk or light
Disk etc..Optionally, one or more integrated circuit can be used also to realize in all or part of the steps of above-described embodiment.Phase
It answers, each modular unit in above-described embodiment, can be realized using example, in hardware, it can also be by the form of software function module
It realizes, the application is not limited to the combination of the software and hardware of any particular form.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification made, equivalent replacement, improve etc., it should be included in protection of the invention
Within the scope of.
Claims (17)
1. a kind of method communicated in user equipment, wherein include the following steps:
A. operation scheduling control signaling, the operation are to receive or send；
Wherein, if the mapping resource M of the scheduling control signaling and reserved cell interception reference signal running time-frequency resource R have friendship
Folded, the data resource S of the scheduling control signaling scheduling does not include described overlapping occupied symbol, the running time-frequency resource R packet
Include at least one:
The cell interception reference signal running time-frequency resource R1 that serving cell belonging to current is reserved, if outside MPS process, institute
Running time-frequency resource R1 is stated as sky；
Running time-frequency resource R2, the running time-frequency resource R2 for device-to-device communication reservation are to receive at least one signaling to obtain
The union of reserved cell interception reference signal running time-frequency resource；
Wherein, the cell interception reference signal is listened to by what SoundingRS-UL-ConfigCommon information particle indicated
Reference signal.
2. the method according to claim 1, wherein further including following steps:
B. it is sent on the data resource S according to the instruction of the scheduling control signaling or receiving device is to device signal.
3. method according to claim 1 or 2, which is characterized in that listen to ginseng comprising cell in the scheduling control signaling
Signal designation information is examined, the cell interception reference signal instruction information indicates whether the data resource S includes described overlapping
Occupied symbol.
4. the method according to claim 1, wherein further including following steps before the step:
A0_1. SoundingRS-UL-ConfigCommon information is received on the channel resource of system equipment to user equipment
Son is with the determination running time-frequency resource R1.
5. method according to claim 1 or 4, which is characterized in that further include following steps before the step:
A0_2. the first signaling is received on the channel resource of system equipment to UE with the determination running time-frequency resource R2, the first signaling
It is that the specific high-level signaling of the user equipment either specific high-level signaling of group of user equipments, the first signaling are detectd including at least cell
Listen reference signal sub-frame information and cell interception reference signal bandwidth information.
6. method according to claim 1 or 4, which is characterized in that further include following steps before the step:
A0_3. one or more signaling is received on device-to-device channel resource with the determination running time-frequency resource R2, each
The signaling includes at least cell interception reference signal sub-frame information and cell interception reference signal bandwidth information.
7. method according to claim 1 or 4, which is characterized in that further include following steps before the step:
A0_4. send third signaling with indicate it is current belonging to the cell interception reference signal running time-frequency resource reserved of serving cell
R1, if the running time-frequency resource R1 is sky outside MPS process.
8. a kind of method communicated in system equipment, wherein include the following steps:
A. scheduling control signaling is sent, the scheduling control signaling is the control signaling that controlling equipment is communicated to equipment；
Wherein, if the mapping resource M of the scheduling control signaling and reserved cell interception reference signal running time-frequency resource R have friendship
Folded, the data resource S of the scheduling control signaling scheduling does not include described overlapping occupied symbol, the running time-frequency resource R packet
Include is at least one:
The cell interception reference signal running time-frequency resource R1 that current service cell is reserved, if outside MPS process, when described
Frequency resource R1 is sky；
Running time-frequency resource R2, the running time-frequency resource R2 for device-to-device communication reservation are to receive at least one signaling to obtain
The union of reserved cell interception reference signal running time-frequency resource；
Wherein, the cell interception reference signal is listened to by what SoundingRS-UL-ConfigCommon information particle indicated
Reference signal.
9. according to the method described in claim 8, it is characterized in that, further including following steps:
B. cell interception reference signal is received, the cell interception reference signal and the mapping resource M have overlapping.
10. according to the method described in claim 8, it is characterized in that, listening to reference comprising cell in the scheduling control signaling
Signal designation information, the cell interception reference signal instruction information indicate whether the data resource S includes the overlapping institute
The symbol of occupancy.
11. a kind of user equipment, which is characterized in that the equipment includes:
First module: operation scheduling control signaling, the operation are to receive or send；
Wherein, if the mapping resource M of the scheduling control signaling and reserved cell interception reference signal running time-frequency resource R have friendship
Folded, the data resource S of the scheduling control signaling scheduling does not include described overlapping occupied symbol, the running time-frequency resource R packet
Include is at least one:
The C-SRS running time-frequency resource R1 that serving cell belonging to current is reserved, if outside MPS process, the running time-frequency resource
R1 is sky；
Running time-frequency resource R2, the running time-frequency resource R2 for device-to-device communication reservation are to receive at least one signaling to obtain
The union of reserved cell interception reference signal running time-frequency resource；
Wherein, the cell interception reference signal is listened to by what SoundingRS-UL-ConfigCommon information particle indicated
Reference signal.
12. equipment according to claim 11, which is characterized in that the equipment further include:
Second module: sending on the data resource S according to the instruction of the scheduling control signaling or receiving device is to setting
Standby signal.
13. equipment according to claim 11, which is characterized in that the equipment further includes at least one:
Third module: receiving the first signaling on the channel resource of system equipment to UE with the determination running time-frequency resource R2, and first
Signaling is that the specific high-level signaling of the user equipment either specific high-level signaling of UE group, the first signaling are listened to including at least cell
Reference signal sub-frame information and cell interception reference signal bandwidth information；
4th module: receiving one or more signaling on device-to-device channel resource with the determination running time-frequency resource R2,
Each signaling includes at least cell interception reference signal sub-frame information and cell interception reference signal bandwidth information；
5th module: SoundingRS-UL-ConfigCommon information particle is received on the channel resource of system equipment to UE
With the determination running time-frequency resource R1.
14. equipment according to claim 11 or 12, which is characterized in that listened in the scheduling control signaling comprising cell
Reference signal indicates information, the cell interception reference signal instruction information indicate whether the data resource S includes the friendship
Fold occupied symbol.
15. a kind of system equipment, which is characterized in that the equipment includes:
First module: scheduling control signaling is sent, the scheduling control signaling is the control signaling that controlling equipment is communicated to equipment；
Wherein, if the mapping resource M of the scheduling control signaling and reserved cell interception reference signal running time-frequency resource R have friendship
Folded, the data resource S of the scheduling control signaling scheduling does not include described overlapping occupied symbol, the running time-frequency resource R packet
Include is at least one:
The cell interception reference signal running time-frequency resource R1 that current service cell is reserved, if outside MPS process, when described
Frequency resource R1 is sky；
Running time-frequency resource R2, the running time-frequency resource R2 for device-to-device communication reservation are to receive at least one signaling to obtain
The union of reserved cell interception reference signal running time-frequency resource；
Wherein, the cell interception reference signal is listened to by what SoundingRS-UL-ConfigCommon information particle indicated
Reference signal.
16. equipment according to claim 15, which is characterized in that the equipment further include:
Second module: receiving cell interception reference signal, and the cell interception reference signal and the mapping resource M have overlapping.
17. equipment according to claim 15, which is characterized in that listen to reference comprising cell in the scheduling control signaling
Signal designation information, the cell interception reference signal instruction information indicate whether the data resource S includes the overlapping institute
The symbol of occupancy.
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| CN106559446A (en) * | 2015-09-25 | 2017-04-05 | 中兴通讯股份有限公司 | For the transmission method and device of the communication system of road vehicle |
| CN106612554B (en) * | 2015-10-23 | 2020-06-02 | 华为技术有限公司 | Method, base station and user equipment for allocating time domain resources |
| EP3528565A4 (en) * | 2016-11-04 | 2019-10-30 | Huawei Technologies Co., Ltd. | Method for transmitting sounding reference signal, and network device and terminal device |
| CN107071907B (en) * | 2016-12-29 | 2019-01-04 | 展讯通信（上海）有限公司 | The configuration method and user terminal of physical resource |
| CA3049802C (en) * | 2017-01-11 | 2022-12-13 | Huawei Technologies Co., Ltd. | Resource selection method and terminal |
| EP3614774B1 (en) * | 2017-08-10 | 2021-05-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for device to device communication, and terminal device |
| WO2021248448A1 (en) * | 2020-06-12 | 2021-12-16 | Qualcomm Incorporated | Wireless sensing indication in new radio communications |
| CN112911521B (en) * | 2021-02-02 | 2022-01-21 | 北京达源环保科技有限公司 | D2D communication-based intelligent monitoring method and system for sewage treatment plant |
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Effective date of registration: 20240104 Address after: 518040 unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Xiangmihu street, Futian District, Shenzhen, Guangdong Province Patentee after: Honor Device Co.,Ltd. Address before: 9/F, No. 11, Lane 4666, Gonghexin Road, Zhabei, Shanghai, 200072 Patentee before: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY Co.,Ltd. |