WO2016045410A1 - Mac pdu数量的指示方法及装置 - Google Patents
Mac pdu数量的指示方法及装置 Download PDFInfo
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- the present invention relates to the field of communications, and in particular, to a method and an apparatus for indicating the number of MAC PDUs.
- FIG. 1 is a structural block diagram of D2D communication in the related art, and the communication mode has a feature that is distinct from the traditional cellular system communication mode.
- D2D transmission not only saves wireless spectrum resources, but also reduces the data transmission pressure of the core network, can reduce system resource consumption, increase the spectrum efficiency of the cellular communication system, and reduce the terminal transmission power consumption. And to a large extent save network operating costs.
- the radio resources of the UE are uniformly controlled by an evolved NodeB (eNB), and the eNB indicates the downlink configured by the UE through a Physical Downlink Control Channel (PDCCH).
- the UE receives the data signal transmitted by the eNB on the corresponding downlink resource according to the configuration indication of the eNB, or transmits the signal to the eNB on the uplink resource.
- eNB evolved NodeB
- PDCCH Physical Downlink Control Channel
- a radio resource divides resources in units of radio frames in the time domain, each radio frame is 10 ms, and includes 10 subframes. Each sub-frame is 1 ms, and is divided into two slots of 0.5 ms, as shown in FIG. 2, which is a block diagram of a frame structure of an LTE system in the related art.
- the eNB schedules, on the PDCCH resource of the downlink subframe #n, the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) resource that is configured in the current subframe, and the UE receives the indication information in the PDCCH. And receiving, according to the indication information, a Medium Access Control (MAC) protocol data unit (referred to as a PDU) on a corresponding resource block (Resource Block, RB for short) in the subframe #n.
- MAC Medium Access Control
- the data transmitted by the eNB is obtained, as shown in FIG. 3, which is an LTE resource scheduling indication map in the related art.
- FIG. 4 is a D2D communication resource scheduling indication diagram in the related art, and indicates a PSSCH resource, as shown in FIG. 4, in the signaling (Sidelink Control Information, SCI for short) signaling.
- the Time Resource Pattern (TRP) information indicates the corresponding PSSCH subframes in a bitmap bitmap of the cyclic mapping, which limits the flexibility of D2D data transmission.
- the embodiment of the invention provides a method and a device for indicating the number of MAC PDUs of a media access control protocol data unit, so as to at least solve the problem of low flexibility of D2D data transmission existing in the related art.
- a method for indicating a number of media access control protocol data unit MAC PDUs including: indicating a physical edge link in a device-to-device D2D resource period in edge link control information SCI
- the number Q of medium access control protocol data unit MAC PDUs sequentially transmitted on the shared channel PSSCH subframe, wherein the quantity Q is indicated by at least one of the following methods: the network side entity passes the higher layer signaling and/or the physical layer The signaling indicates the quantity Q; the transmitting end UE determines and indicates the quantity Q according to the local information; the network side entity indicates the number of the MAC PDUs Q or the number of the MAC PDUs by high layer signaling and/or physical layer signaling. Reference value Q 0 , and the transmitting end UE determines and indicates the number Q of the MAC PDUs, where Q ⁇ Q 0 .
- the network side entity indicates the quantity Q or the reference value Q 0 by using high layer signaling and/or physical layer signaling, including at least one of the following: the network side entity passes the high layer letter Instructing the quantity Q or the reference value Q 0 to include at least one of the following: the network side entity indicates the quantity Q or the reference value Q 0 through a system information block SIB, and the network side entity passes the radio resource Controlling the RRC message indicating the quantity Q or the reference value Q 0 , the quantity Q or the reference value Q 0 being a unique value; the network side entity indicating the quantity Q or the location by the physical layer signaling
- the quantity Q or the reference value Q 0 is for all D2D sending ends in the cell.
- the UE is valid or valid for the transmitting UE in the designated D2D group.
- the RRC message is a D2D dedicated configuration indication message D2D reconfiguration message.
- the transmitting end UE determines and indicates the quantity Q according to at least one of: the number of PSSCH subframes in the period, the number of transmissions of each of the MAC PDUs, the sending The amount of data to be transmitted and the D2D channel measurement report of the UE.
- the number Q of the MAC PDUs or the reference value Q 0 is less than or equal to the maximum number of the MAC PDUs that can be carried by the PSSCH subframe in a period.
- the PSSCH subframe in the D2D resource period includes at least one of: a system uplink subframe, or a subframe in a PSSCH subframe resource pool, or is indicated by a time domain resource pattern TRP. Subframe.
- the network side entity includes at least one of the following: an evolved base station eNB, a relay station RN, a cell cooperation entity MCE, a gateway GW, a mobility management device MME, an evolved universal terrestrial radio access network EUTRAN, and an operation. Management and Maintenance Manager OAM.
- a device for indicating the number of media access control protocol data unit MAC PDUs which is applied to a network entity side, and includes: a first indication module, configured to pass high layer signaling and/or physical layer The signaling indicates the number Q of media access control protocol data unit MAC PDUs sequentially transmitted on the physical side link shared channel PSSCH subframe within a device to device D2D resource period, or the reference value Q 0 of the number of MAC PDUs .
- the first indication module indicates the quantity Q or the reference value Q 0 by at least one of the following manners: the network side entity indicates the quantity Q or the location by using the high layer signaling
- the reference value Q 0 includes at least one of the following: the network side entity indicates the quantity Q or the reference value Q 0 through a system information block SIB, and the network side entity indicates the quantity Q by using a radio resource control RRC message Or the reference value Q 0 , the quantity Q or the reference value Q 0 is a unique value;
- the network side entity indicates, by the physical layer signaling, the quantity Q or the reference value Q 0 includes:
- the quantity Q or the reference value Q 0 is for all D2D sending ends in the cell. Valid, or valid for the transmitting UE in the specified D2D group.
- the RRC message is a D2D dedicated configuration indication message D2D reconfiguration message.
- the quantity Q or the reference value Q 0 is less than or equal to the maximum number of the MAC PDUs that can be carried by the PSSCH subframe in a period.
- the PSSCH subframe in the D2D resource period includes at least one of: a system uplink subframe, or a subframe in a PSSCH subframe resource pool, or is indicated by a time domain resource pattern TRP. Subframe.
- the network side entity includes at least one of the following: an evolved base station eNB, a relay station RN, a cell coordination entity MCE, a gateway GW, a mobility management device MME, and an evolved universal terrestrial radio access network EUTRAN. , Operations Management and Maintenance Manager OAM.
- a device for indicating the number of media access control protocol data unit MAC PDUs is provided, which is applied to the UE side of the transmitting end, and includes: a second indication module, configured to determine and indicate according to the local information The number Q of medium access control protocol data unit MAC PDUs sequentially transmitted on the physical side link shared channel PSSCH subframe in the device to device D2D resource period.
- the second indication module determines and indicates the quantity Q according to at least one of the following: the number of PSSCH subframes in the period, the number of transmissions of each of the MAC PDUs, and the sending end.
- the quantity Q indicated by the sending end UE is less than or equal to the maximum number of the MAC PDUs that can be carried by the PSSCH subframe in a period.
- the PSSCH subframe in the D2D resource period includes at least one of: a system uplink subframe, or a subframe in a PSSCH subframe resource pool, or is indicated by a time domain resource pattern TRP. Subframe.
- a device for indicating the number of media access control protocol data unit MAC PDUs which should be configured in a system, the system comprising at least a transmitting end UE and a network side entity, wherein the network The side entity indicates, by high layer signaling and/or physical layer signaling, the quantity Q of media access control protocol data unit MAC PDUs sequentially transmitted on the physical side link shared channel PSSCH subframe within a device to device D2D resource period, Or a reference value Q 0 of the number of MAC PDUs, and the transmitting end UE determines and indicates the number Q of the transmitted MAC PDUs according to the quantity Q indicated by the network side or the reference value Q 0 Wherein Q ⁇ Q 0 .
- the network side entity indicates the quantity Q or the reference value Q 0 by using high layer signaling and/or physical layer signaling, including at least one of the following: the network side entity passes the The high layer signaling indicates that the quantity Q or the reference value Q 0 includes at least one of the following: the network side entity indicates the quantity Q or the reference value Q 0 through a system information block SIB, and the network side entity passes The radio resource control RRC message indicates the quantity Q or the reference value Q0, the quantity Q or the reference value Q 0 is a unique value; the network side entity indicates the quantity Q or by the physical layer signaling
- the quantity Q or the reference value Q 0 is for all D2D sending ends in the cell. Valid, or valid for the transmitting UE in the specified D2D group.
- the RRC message is a D2D dedicated configuration indication message D2D reconfiguration message.
- the sending end UE when the sending end UE determines and indicates the quantity Q according to the quantity Q or the reference value Q 0 indicated by the network side entity, the sending end UE is according to at least Determining and indicating the quantity Q: the number of PSSCH subframes in the period, the number of transmissions of each of the MAC PDUs, the amount of data to be transmitted of the transmitting end UE, and a D2D channel measurement report.
- the quantity Q or the reference value Q 0 is less than or equal to the maximum number of the MAC PDUs that can be carried by the PSSCH subframe in a period.
- the PSSCH subframe in the D2D resource period includes at least one of: a system uplink subframe, or a subframe in a PSSCH subframe resource pool, or is indicated by a time domain resource pattern TRP. Subframe.
- the network side entity includes at least one of the following: an evolved base station eNB, a relay station RN, a cell coordination entity MCE, a gateway GW, a mobility management device MME, and an evolved universal terrestrial radio access network EUTRAN. , Operations Management and Maintenance Manager OAM.
- the number of media access control protocol data unit MAC PDUs sequentially transmitted on the physical side link shared channel PSSCH subframe in a device-to-device D2D resource period in the edge link control information SCI is adopted.
- Q wherein the quantity Q is indicated by at least one of the following methods: the network side entity indicates the quantity Q by higher layer signaling and/or physical layer signaling; the transmitting end UE determines and indicates the quantity according to local information Q; the network side entity indicates the number of MAC PDUs Q or the reference value Q 0 of the number of MAC PDUs Q through high layer signaling and/or physical layer signaling, and the transmitting end UE determines and indicates the number Q of the MAC PDUs.
- Q ⁇ Q 0 solves the problem of low flexibility of D2D data transmission existing in the related art, thereby achieving the effect of improving the flexibility of D2D data transmission and improving resource utilization.
- FIG. 2 is a block diagram of a frame structure of an LTE system in the related art
- FIG. 3 is an LTE resource scheduling indication diagram in the related art
- FIG. 5 is a flowchart of a method for indicating a quantity of a medium access control protocol data unit MAC PDU according to an embodiment of the present invention
- FIG. 6 is a structural block diagram of an apparatus 1 for indicating a quantity of a medium access control protocol data unit MAC PDU according to an embodiment of the present invention
- FIG. 7 is a structural block diagram of an apparatus 2 for indicating a quantity of a medium access control protocol data unit MAC PDU according to an embodiment of the present invention
- FIG. 8 is a structural block diagram of a device 3 for indicating the number of media access control protocol data unit MAC PDUs according to an embodiment of the present invention
- FIG. 9 is a signaling flowchart of a network side indicating a MAC PDU transmission quantity Q by using an SIB information configuration according to an embodiment of the present invention.
- FIG. 10 is a signaling flowchart of a network side indicating a MAC PDU transmission quantity Q by using an RRC message configuration according to an embodiment of the present invention
- FIG. 11 is a schematic diagram of data transmission according to Embodiment 2 of the present invention.
- FIG. 12 is a signaling flowchart of a network side indicating a MAC PDU transmission quantity Q by using an RRC message and a D2D DCI signaling configuration according to an embodiment of the present invention
- FIG. 13 is a signaling flowchart of determining, by the transmitting end UE, a MAC PDU transmission quantity Q according to an embodiment of the present invention
- FIG. 14 is a schematic diagram of data transmission according to Embodiment 4 of the present invention.
- FIG. 15 is a signaling flowchart of a network side indicating a MAC PDU number reference value Q 0 by an RRC message, and a sending end UE determining and indicating a MAC PDU transmission quantity Q according to an embodiment of the present invention.
- FIG. 5 is a flowchart of a method for indicating the number of media access control protocol data unit MAC PDUs according to an embodiment of the present invention. As shown in FIG. 5, the process includes the following steps:
- Step S502 indicating, in the edge link control information SCI, the number Q of media access control protocol data unit MAC PDUs sequentially transmitted on the physical side link shared channel PSSCH subframe in a device-to-device D2D resource period, where
- the quantity Q is indicated by at least one of the following methods: the network side entity indicates the quantity Q by higher layer signaling and/or physical layer signaling; the transmitting end UE determines and indicates the quantity Q according to the local information; the network side entity passes the high layer signaling and / or physical layer signaling indicates a reference value Q 0 of the number of MAC PDUs Q or the number of MAC PDUs Q, and the transmitting end UE determines and indicates the number Q of MAC PDUs, where Q ⁇ Q 0 .
- the number Q of media access control protocol data unit MAC PDUs sequentially transmitted on the physical side link shared channel PSSCH subframe in a device-to-device D2D resource period is indicated in the side link control information SCI
- the quantity Q is indicated by at least one of the following methods: the network side entity indicates the quantity Q through high layer signaling and/or physical layer signaling; the sending end UE determines and indicates the quantity Q according to the local information; the network side entity passes the high layer letter
- the command and/or physical layer signaling indicates the reference value Q 0 of the number of MAC PDUs Q or the number Q of MAC PDUs, and the transmitting end UE determines and indicates the number Q of MAC PDUs, where Q ⁇ Q 0 , which solves the existence in the related art.
- the problem of low flexibility of D2D data transmission thereby achieving the flexibility of improving D2D data transmission and improving resource utilization.
- the network side entity indicates the quantity Q or the reference value Q 0 through high layer signaling and/or physical layer signaling, and may include at least one of the following: the network side entity indicates the quantity Q or reference through high layer signaling.
- the value Q 0 includes at least one of the following: the network side entity indicates the quantity Q or the reference value Q 0 through the system information block SIB, and the network side entity indicates the quantity Q or the reference value Q 0 , the quantity Q or the reference value Q through the radio resource control RRC message.
- Q network entity through physical layer signaling indicates the number or reference value Q 0 comprising: a network entity control information format of the DCI format 5 n bit instruction information through the downlink dedicated D2D number or reference value Q 0 Q
- the network side entity indicates the quantity Q or the reference value Q 0 through high layer signaling and physical layer signaling, including: the network side entity passes the high layer letter
- the order indicates one or more quantities Q, or one or more reference values Q 0 , the network side entity indicates a unique quantity Q in one or more quantities Q by physical layer signaling, or at one or more reference values Q 0 Direct indication A quantity Q.
- the quantity Q or the reference value Q 0 is valid for all D2D transmitting end UEs in the cell, or for the designated D2D group.
- the sender UE in the group is valid.
- the RRC message is a D2D dedicated configuration indication message D2D reconfiguration message.
- the transmitting end UE when the transmitting end UE determines and indicates the quantity Q according to the local information, or when the transmitting end UE determines and indicates the quantity Q according to the quantity Q value indicated by the network side entity or the reference value Q 0 , the transmitting end UE according to at least one of the following The number Q is determined and indicated: the number of PSSCH subframes in the period, the number of transmissions per MAC PDU, the amount of data to be transmitted of the transmitting UE, and the D2D channel measurement report.
- the number Q or the reference value Q 0 of the MAC PDU is less than or equal to the maximum number of MAC PDUs that can be carried by the PSSCH subframe in the period.
- the PSSCH subframe in the D2D resource period may include at least one of: a system uplink subframe, or a subframe in a PSSCH subframe resource pool, or a subframe indicated by a time domain resource pattern TRP.
- the network side entity includes at least one of the following: an evolved base station eNB, a relay station RN, a cell cooperation entity MCE, a gateway GW, a mobility management device MME, an evolved universal terrestrial radio access network EUTRAN, an operation management and maintenance manager. OAM.
- a device for indicating the number of media access control protocol data unit MAC PDUs is provided.
- the device is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
- the term "module” may implement a combination of software and/or hardware of a predetermined function.
- the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
- FIG. 6 is a structural block diagram of a device 1 for indicating the number of media access control protocol data unit MAC PDUs according to an embodiment of the present invention. As shown in FIG. 6, the device for indicating the number of MAC PDUs is applied to the network entity side, including the first An indicating module 62, the device will be described below.
- the first indication module 62 is configured to indicate, by using high layer signaling and/or physical layer signaling, a media access control protocol data unit sequentially transmitted on a physical side link shared channel PSSCH subframe within a device to device D2D resource period.
- the first indication module 62 may indicate the quantity Q or the reference value Q 0 by at least one of the following manners: the network side entity indicates, by the high layer signaling, that the quantity Q or the reference value Q 0 includes at least one of the following: the network side entity passes the system information.
- the network side entity indicates one or more quantity Qs, or one or more reference values by high layer signaling.
- Q 0 the network side entity indicates a unique quantity Q in one or more quantities Q by physical layer signaling or a unique quantity Q in one or more reference values Q 0 .
- the quantity Q or the reference value Q 0 is valid for all D2D transmitting ends in the cell, or is valid for the transmitting end UE in the designated D2D group. .
- the RRC message is a D2D dedicated configuration indication message D2D reconfiguration message.
- the number Q or the reference value Q 0 is less than or equal to the maximum number of MAC PDUs that can be carried by the PSSCH subframe in the period.
- the PSSCH subframe in the D2D resource period includes at least one of the following: a system uplink subframe, or a subframe in a PSSCH subframe resource pool, or a subframe indicated by a time domain resource pattern TRP.
- the network side entity includes at least one of the following: an evolved base station eNB, a relay station RN, a cell cooperation entity MCE, a gateway GW, a mobility management device MME, an evolved universal terrestrial radio access network EUTRAN, an operation management and maintenance manager. OAM.
- FIG. 7 is a structural block diagram of a device 2 for indicating the number of media access control protocol data unit MAC PDUs according to an embodiment of the present invention. As shown in FIG. 7, the device for indicating the number of MAC PDUs is applied to the UE side of the transmitting end, including The second indicator module 72 is described below.
- the second indication module 72 is configured to determine and indicate, according to the local information, the quantity Q of media access control protocol data unit MAC PDUs sequentially transmitted on the physical side link shared channel PSSCH subframe within a device to device D2D resource period.
- the second indication module 72 may determine and indicate the quantity Q according to at least one of the following: the number of PSSCH subframes in the period, the number of transmissions of each MAC PDU, the amount of data to be sent by the transmitting UE, and the D2D channel measurement report.
- the number Q indicated by the sending end UE is less than or equal to the maximum number of MAC PDUs that can be carried by the PSSCH subframe in the period.
- the PSSCH subframe in the D2D resource period includes at least one of the following: a system uplink subframe, or a subframe in a PSSCH subframe resource pool, or a subframe indicated by a time domain resource pattern TRP.
- FIG. 8 is a structural block diagram of a device 3 for indicating the number of media access control protocol data unit MAC PDUs according to an embodiment of the present invention. As shown in FIG. 8, the device for indicating the number of MAC PDUs is applied to the system, including at least The UE UE and the network side entity 84 are described below.
- the network side entity 84 indicates, by higher layer signaling and/or physical layer signaling, the number of medium access control protocol data unit MAC PDUs sequentially transmitted on the physical side link shared channel PSSCH subframe within one device to device D2D resource period.
- Q or a reference value Q 0 of the number of MAC PDUs
- the transmitting end UE 82 determines and indicates the number Q of transmitted MAC PDUs according to the number Q indicated by the network side or the reference value Q 0 , where Q ⁇ Q 0 .
- the quantity Q or the reference value Q 0 is valid for all D2D transmitting ends in the cell, or is valid for the transmitting end UE in the designated D2D group. .
- the RRC message is a D2D dedicated configuration indication message D2D reconfiguration message.
- the transmitting end UE determines and indicates the quantity Q according to the quantity Q or the reference value Q 0 indicated by the network side entity
- the transmitting end UE determines and indicates the quantity Q according to at least one of the following: the number of PSSCH subframes in the period, The number of transmissions per MAC PDU, the amount of data to be transmitted by the transmitting UE, and the D2D channel measurement report.
- the number Q or the reference value Q 0 is less than or equal to the maximum number of MAC PDUs that can be carried by the PSSCH subframe in the period.
- the PSSCH subframe in the D2D resource period includes at least one of the following: a system uplink subframe, or a subframe in a PSSCH subframe resource pool, or a subframe indicated by a time domain resource pattern TRP.
- the network side entity includes at least one of the following: an evolved base station eNB, a relay station RN, a cell cooperation entity MCE, a gateway GW, a mobility management device MME, an evolved universal terrestrial radio access network EUTRAN, an operation management and maintenance manager. OAM.
- the invention provides a method and a device for indicating data transmission in the embodiment of the present invention, wherein the D2D communication cycle is indicated by the physical layer and/or the upper layer control signaling.
- the number of data medium access control protocol data unit MAC PDUs transmitted by the transmitting end UE provides an efficient and flexible data transmission control indication, thereby solving the problem that the number of MAC PDU transmissions does not match the number of PSSCH subframes, and provides D2D communication services. Resource configuration of requirements, improve configuration flexibility of D2D data transmission, and improve resource utilization.
- the network side may include one or more of the following entities: an evolved base station (evolved NodeB, hereinafter referred to as eNB), a relay station (Relay Node, RN for short), and a cell cooperative entity (Multi-cell/multicast Coordination Entity, referred to as MCE), Gateway (GateWay, GW for short), Mobility Management Entity (MME), Evolved Universal Terrestrial Radio Access Network (EUTRAN), operation management and The Operation Administration and Maintenance (OAM) is described below with the eNB as the configuration control entity on the network side.
- eNB evolved base station
- MCE Multi-cell/multicast Coordination Entity
- MME Mobility Management Entity
- EUTRAN Evolved Universal Terrestrial Radio Access Network
- OAM Operation Administration and Maintenance
- a D2D transmitting end UE having D2D data to be transmitted may obtain a physical side link shared channel (PSSCH) resource configuration of D2D communication from an eNB, or a resource pool predefined in the system. Selecting a certain PSSCH resource to use, regardless of how the transmitting UE obtains the PSSCH resource, the transmitting UE needs to pass the D2D control indication information, which may also be called the edge link (ie, D2D link) control information (Sidelink Control Information, referred to as The SCI indicates to the receiving UE the used PSSCH resources and other control information related to D2D data transmission, such as a Message Control System (MCS), a UE ID, and the like.
- MCS Message Control System
- the physical side link control channel (Physical Sidelink Control Channel, PSCCH) channel resource and the PSSCH resource carrying D2D data are divided into sub-frame units, and D2D control is carried on the PSCCH subframe.
- D2D control is carried on the PSCCH subframe.
- the PSSCH subframe may refer to all system uplink subframes, or subframes in a PSSCH subframe resource pool predefined or configured by the system, or subframes indicated by a Time Domain Pattern (TRP).
- TRP Time Domain Pattern
- the transmitting UE carries control indication information about the PSSCH subframe in the SCI, and is used to indicate related information of the D2D data transmitted in one cycle, including the PSSCH configuration, the MCS, and the like.
- the transmitting end UE indicates the corresponding D2D data resource configuration to the one or more receiving end UEs through the SCI, so that the receiving end UE can obtain the PSSCH subframe indication after receiving the control indication information, and according to the indication, on the corresponding channel resource. Receive the required data.
- the transmitting UE may transmit one or more MAC PDUs on the PSSCH in one cycle, that is, the number Q of transmitted MAC PDUs is greater than or equal to 1.
- the method for determining the value of the quantity Q can be as follows:
- the Q value is indicated by the eNB to the transmitting UE:
- the eNB may further configure the number of MAC PDUs that are transmitted by the transmitting UE in the PSSCH subframe in the period for fine adjustment and control of the D2D resource configuration.
- the eNB may indicate, by using the high layer signaling and/or the physical layer signaling, the configuration of the sending UE about the Q value.
- the Q value indicated by the eNB is a unique value, and the transmitting UE transmits the Q MAC PDUs in the period;
- the eNB When Q is indicated by high layer signaling and physical layer signaling, the eNB indicates one or more of the Q values through high layer signaling, that is, indicates a set of Q value lists, and further indicates in the Q value list by physical layer signaling. For an actually used Q value, the transmitting UE transmits Q MAC PDUs in a period with a Q value indicated by the final physical layer.
- the system information block may be used to indicate the Q value
- the Q value indicated in the SIB is a cell level parameter, that is, a cell. All the D2D UEs are uniformly valid, or, alternatively, the SIBs can be configured according to different D2D UE groups.
- the Q value of the configuration indication is uniformly valid for the UEs belonging to the corresponding D2D group.
- the radio resource control (Radio Resource Control, RRC for short) message may be used for indication, and the RRC message is configured for the UE level, and the Q value may be independently performed for each UE.
- the configuration indication indicates that the indicated Q value is only available to the sending UE that receives the RRC message. effect.
- the RRC message used to configure the indicated Q value is a D2D communication dedicated configuration indication message D2DReconfiguration.
- the eNB may indicate the Q value by using the D2D dedicated downlink control information format DCI format 5, and indicate the configured Q value to the transmitting UE by using the corresponding indication bit in the D2D DCI.
- the Q value is determined by the transmitting UE itself:
- the transmitting UE selects the PSSCH subframe in the D2D resource pool to transmit the D2D MAC PDU, or the eNB indicates the configured PSSCH subframe resource to the transmitting UE, but does not indicate the corresponding Q value
- the transmitting UE The Q value can be determined by itself, and Q MAC PDUs are transmitted on the PSSCH subframe in the period to meet the purpose of self-data transmission.
- the Q value when the sending end UE determines the Q value, the Q value may be determined based on one or more of the following factors: the number of PSSCH subframes in the period, the number of transmissions of each MAC PDU, the amount of data to be sent by the transmitting UE, D2D channel measurement report, etc.
- the Q value determined by the sending end UE cannot exceed the maximum number of MAC PDUs that can be carried by the PSSCH subframe in the period.
- the transmitting end UE indicates the Q value in the SCI, so that the receiving end UE can accurately receive the transmitted MAC PDU in the PSSCH subframe, thereby saving power and reducing the complexity of the receiving end.
- the Q value is jointly determined by the eNB and the transmitting UE:
- the eNB instructs the sending end UE to send a reference value Q 0 of the MAC PDU through the high layer signaling or the physical layer signaling, and the transmitting end UE optionally determines the number Q of actually sent MAC PDUs, and Q ⁇ Q 0 .
- Q 0 value indicates the eNB through higher layer signaling may be employed a system information block SIB (System Information Block, also known as system broadcast message) for indicating, cell-level value Q 0 at this time indicated by the parameters in the SIB, i.e., the cell All valid D2D UE is uniform, or, alternatively, the SIB may be configured value Q 0, Q 0 value indicates that the configuration of the UE belonging to the respective D2D group is active in a different uniform D2D UE group.
- SIB System Information Block, also known as system broadcast message
- the RRC (Radio Resource Control) message may be used to indicate the RRC message, and the RRC message is configured to indicate the configuration of the Q 0 value for each UE.
- the indicated Q 0 value is only valid for the transmitting UE receiving the RRC message.
- the RRC message used to configure the indication Q 0 value is a D2D communication specific configuration indication message D2DReconfiguration.
- the D2D dedicated downlink control information format DCI format 5 may be used to indicate, and the configured Q 0 value is indicated to the transmitting end UE by the corresponding indication bit in the D2D DCI.
- the transmitting end UE determines the number Q of MAC PDUs actually transmitted based on the Q 0 value configured by the eNB, and transmits Q MAC PDUs in the PSSCH subframe in the period to meet the requirements of the data transmission requirement.
- the Q value may be determined based on one or more of the following factors: the number of PSSCH subframes in the period, the number of transmissions of each MAC PDU, the amount of data to be sent by the transmitting UE, and the D2D channel measurement.
- the transmitting end UE indicates the Q value in the SCI, so that the receiving end UE can accurately receive the transmitted MAC PDU in the PSSCH subframe, thereby saving power and reducing the complexity of the receiving end.
- FIG. 9 is a signaling flowchart of a network side indicating a MAC PDU transmission quantity Q by using an SIB information configuration according to an embodiment of the present invention.
- the intra-D2D UE receives, so the transmitting end UE may not need to indicate the Q value configured by the eNB again, that is, the indication about the Q value is no longer carried in the SCI, and the receiving end UE combines according to the Q value configuration received from the SIB.
- the relevant control indication in the sender UE SCI signaling receives the transmitted 4 MAC PDUs.
- Configuring the number of MAC PDUs transmitted by the D2D UE in the period through the SIB can achieve more precise resource scheduling control, save energy for the transmitting UE and the receiving UE, reduce data reception complexity, and improve resource utilization. Under the scheduling configuration, make full use of the role of system resources.
- FIG. 10 is a signaling flowchart of a network side indicating a MAC PDU transmission quantity Q by using an RRC message configuration according to an embodiment of the present invention.
- FIG. 11 is a schematic diagram of data transmission according to Embodiment 2 of the present invention.
- the transmitting UE obtains 15
- each MAC PDU needs to be transmitted 4 times according to the system requirements.
- Each transmission needs to occupy one PSSCH subframe in the time domain, so 15 PSSCH subframes cannot meet the transmission of each MAC PDU.
- the transmitting UE does not send data.
- the corresponding resources can be scheduled for use by the eNB.
- the eNB controls the number of MAC PDUs that the transmitting end UE transmits in the period through the RRC message control, which can achieve more accurate resource scheduling control, save energy for the transmitting end UE and the receiving end UE, reduce data reception complexity, and improve resource utilization. Under the unified scheduling configuration of the eNB, the role of system resources is fully utilized.
- FIG. 12 is a signaling flowchart of a network side indicating a MAC PDU transmission quantity Q by using an RRC message and a D2D DCI signaling according to an embodiment of the present invention.
- the eNB indicates a group of D2D transmitting UEs by using a D2DReconfiguration message configuration.
- the eNB controls the number of transmission MAC PDUs that are available to the UE in the period by using the RRC message, and dynamically adjusts the Q value configuration actually used by the DCI format 5 to achieve more real-time accurate resource scheduling control, which is the UE and the receiver at the transmitting end.
- the UE can save energy, meet the service requirements of the UE at the transmitting end, reduce the data receiving complexity of the receiving UE, and improve resource utilization. Under the unified scheduling configuration of the eNB, the system resources can be fully utilized.
- FIG. 13 is a signaling flowchart of determining, by the transmitting end UE, a MAC PDU transmission quantity Q according to an embodiment of the present invention.
- FIG. 14 is a schematic diagram of data transmission according to Embodiment 4 of the present invention.
- the transmitting UE selects the configuration of 10 PSSCH subframes.
- each MAC PDU needs to be transmitted 4 times, and each transmission needs to occupy one PSSCH subframe in the time domain, so 10
- the PSSCH subframes cannot meet the requirement of transmitting 4 times for each MAC PDU, so that the remaining subframes appear.
- the transmitting end UE determines the number Q of transmitting MAC PDUs in one cycle according to the requirements of the PSSCH subframe resource and the number of MAC PDU transmissions, and indicates the determined Q value in the SCI, so that the transmitting UE can follow its own service.
- the Q value is determined by the requirements and the PSSCH subframe condition, etc., to meet the service requirements of the UE at the transmitting end, and to reduce the data receiving complexity of the receiving UE.
- the network side indicates the MAC PDU number reference value Q 0 through the RRC message, and the signaling flowchart of the sender UE determining and indicating the MAC PDU transmission quantity Q.
- the eNB configures the reference value of the number of MAC PDUs transmitted by the D2D UE in the RRC through the RRC, and further adjusts the number of actually sent MAC PDUs by the transmitting end UE, so that the energy of the transmitting end UE and the receiving end UE can be reduced, and the data receiving complexity is reduced.
- the role and can improve resource utilization, under the unified scheduling configuration of the eNB, make full use of the role of system resources.
- modules or steps of the embodiments of the present invention can be implemented by a general computing device, which can be concentrated on a single computing device or distributed in multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from The steps shown or described are performed sequentially, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
- the above embodiments and preferred embodiments solve the problem of low flexibility of D2D data transmission in the related art, thereby achieving the effect of improving the flexibility of D2D data transmission and improving resource utilization.
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Abstract
本发明提供一种MAC PDU数量的指示方法及装置,该方法包括在边链路控制信息SCI中指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,其中,数量Q由下列方法中的至少一种指示:网络侧实体通过高层信令和/或物理层信令指示数量Q;发送端UE根据本地信息确定并指示数量Q;网络侧实体通过高层信令和/或物理层信令指示MAC PDU数量Q或MAC PDU数量Q的参考值Q0,并且发送端UE确定并指示MAC PDU的数量Q,其中,Q≤Q0,解决了相关技术中D2D数据传输灵活性低的问题,达到提高D2D数据传输灵活性、资源利用率的效果。
Description
本发明涉及通信领域,具体而言,涉及一种MAC PDU数量的指示方法及装置。
在设备到设备(Device-to-Device,简称为D2D)通信***中,用户设备(User Equipment,简称为UE)之间有业务需要传输时,UE之间的业务数据不经过基站的转发,而是直接由数据源UE通过空中接口传输给目标UE,如图1所示,图1是相关技术中的D2D通信的结构框图,这种通信模式具有明显区别于传统蜂窝***通信模式的特征,对于能够应用D2D通信方式的近距离通信用户来说,D2D传输不但节省了无线频谱资源,而且降低了核心网的数据传输压力,能够减少***资源占用,增加蜂窝通信***频谱效率,降低终端发射功耗,并在很大程度上节省网络运营成本。
在传统的蜂窝通信***中,UE的无线资源由演进型基站(evolved NodeB,简称为eNB)统一控制调度,eNB通过物理下行控制信道(Physical Downlink Control Channel,简称为PDCCH)指示UE所配置的下行或上行资源,UE按照eNB的配置指示在相应的下行资源上接收eNB发射的数据信号,或者在上行资源上向eNB发射信号。
在长期演进(Long-Term Evolution,简称为LTE)***中,无线资源在时域上以无线帧为单位划分资源,每个无线帧为10ms,包含10个子帧。每个子帧为1ms,分为0.5ms的2个slot,如图2所示,该图2是相关技术中的LTE***帧结构框图。
在蜂窝通信中,eNB在下行子帧#n的PDCCH资源上向UE调度指示在当前子帧所配置的物理下行共享信道(Physical Downlink Shared Channel,简称为PDSCH)资源,UE接收PDCCH中的指示信息,并根据指示信息接收在子帧#n中的相应资源块(Resource Block,简称为RB)上的媒体接入控制(Medium Access Control,简称为MAC)协议数据单元(Protocol Data Unit,简称为PDU),获得eNB传输的数据,如图3所示,图3是相关技术中的LTE资源调度指示图。而在D2D通信***中,UE之间直接进行数据的传输,发送端UE本身需要发送D2D控制信息,向接收端UE指示所传输的数据信号所使用的资源等相关信息。由于D2D通信的特殊性,发送端UE按照eNB的调度,或者在有效的资源池中选择一个或多个物理边链路共享信道(Physical Sidelink Shared Channel,简称为PSSCH)资源进行D2D数据的传输,并在边链路控
制信息(Sidelink Control Information,简称为SCI)信令中指示所使用的PSSCH资源及相关的控制信息,如图4所示,图4是相关技术中的D2D通信资源调度指示图,由于指示PSSCH资源的时域资源图样(Time Resource Pattern,简称为TRP)信息以循环映射的位图bitmap指示相应的PSSCH子帧,限制了D2D数据传输的灵活性。
针对相关技术中存在的D2D数据传输的灵活性低的问题,目前尚未提出有效的解决方案。
发明内容
本发明实施例提供了一种媒体接入控制协议数据单元MAC PDU数量的指示方法及装置,以至少解决相关技术中存在的D2D数据传输的灵活性低的问题。
根据本发明的一个方面,提供了一种媒体接入控制协议数据单元MAC PDU数量的指示方法,包括:在边链路控制信息SCI中指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,其中,所述数量Q由下列方法中的至少一种指示:网络侧实体通过高层信令和/或物理层信令指示所述数量Q;发送端UE根据本地信息确定并指示所述数量Q;网络侧实体通过高层信令和/或物理层信令指示所述MAC PDU数量Q或所述MAC PDU数量Q的参考值Q0,并且发送端UE确定并指示所述MAC PDU的数量Q,其中,Q≤Q0。
在本发明实施例中,网络侧实体通过高层信令和/或物理层信令指示所述数量Q或所述参考值Q0,包括以下至少之一:所述网络侧实体通过所述高层信令指示所述数量Q或所述参考值Q0包括以下至少之一:所述网络侧实体通过***信息块SIB指示所述数量Q或所述参考值Q0、所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值;所述网络侧实体通过所述物理层信令指示所述数量Q或所述参考值Q0包括:所述网络侧实体通过D2D专用下行控制信息格式DCI format 5中的n bit指示信息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值,所述n=1,2,3,4;所述网络侧实体通过所述高层信令和所述物理层信令指示所述数量Q或所述参考值Q0包括:所述网络侧实体通过高层信令指示一个或多个所述数量Q,或一个或多个所述参考值Q0,所述网络侧实体通过物理层信令在所述一个或多个所述数量Q中指示唯一数量Q,或者在所述一个或多个所述参考值Q0中指示唯一数量Q。
在本发明实施例中,当所述网络侧实体通过***信息块SIB指示所述数量Q或所述参考值Q0时,所述数量Q或所述参考值Q0对小区内所有D2D发送端UE有效,或者对指定的D2D群组内的发送端UE有效。
在本发明实施例中,当所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0时,所述RRC消息为D2D专用配置指示消息D2D重配置消息。
在本发明实施例中,当所述发送端UE根据本地信息确定并指示所述数量Q时,或当所述发送端UE根据网络侧实体指示的所述数量Q值或所述参考值Q0确定并指示所述数量Q时,所述发送端UE根据以下至少之一确定并指示所述数量Q:所述周期内的PSSCH子帧数量、每个所述MAC PDU的传输次数、所述发送端UE的待发送数据量、D2D信道测量报告。
在本发明实施例中,所述MAC PDU的数量Q或所述参考值Q0小于或等于周期内所述PSSCH子帧能够承载的最大所述MAC PDU的数量。
在本发明实施例中,在所述SCI中指示所述数量Q时,以n bit指示所述数量Q,其中,所述n=1,2,3,4。
在本发明实施例中,所述D2D资源周期内的所述PSSCH子帧包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
在本发明实施例中,网络侧实体包括以下实体至少之一:演进型基站eNB、中继站RN、小区协作实体MCE、网关GW、移动性管理设备MME、演进型通用陆地无线接入网EUTRAN、操作管理及维护管理器OAM。
根据本发明的另一方面,提供了一种媒体接入控制协议数据单元MAC PDU数量的指示装置,应用于网络实体侧,包括:第一指示模块,设置为通过高层信令和/或物理层信令指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,或者所述MAC PDU数量的参考值Q0。
在本发明实施例中,所述第一指示模块通过以下方式至少之一指示所述数量Q或所述参考值Q0:所述网络侧实体通过所述高层信令指示所述数量Q或所述参考值Q0包括以下至少之一:所述网络侧实体通过***信息块SIB指示所述数量Q或所述参考值Q0、所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值;所述网络侧实体通过所述物理层信令指示
所述数量Q或所述参考值Q0包括:所述网络侧实体通过D2D专用下行控制信息格式DCI format 5中的n bit指示信息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值,所述n=1,2,3,4;所述网络侧实体通过所述高层信令和所述物理层信令指示所述数量Q或所述参考值Q0包括:所述网络侧实体通过高层信令指示一个或多个所述数量Q,或一个或多个所述参考值Q0,所述网络侧实体通过物理层信令在所述一个或多个所述数量Q中指示唯一的数量Q,或者在所述一个或多个所述参考值Q0中指示唯一的数量Q。
在本发明实施例中,当所述网络侧实体通过***信息块SIB指示所述数量Q或所述参考值Q0时,所述数量Q或所述参考值Q0对小区内所有D2D发送端有效,或者对指定的D2D群组内的发送端UE有效。
在本发明实施例中,当所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0时,所述RRC消息为D2D专用配置指示消息D2D重配置消息。
在本发明实施例中,所述数量Q或所述参考值Q0小于或等于周期内所述PSSCH子帧能够承载的最大所述MAC PDU的数量。
在本发明实施例中,所述D2D资源周期内的所述PSSCH子帧包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
在本发明实施例中,所述网络侧实体包括以下实体至少之一:演进型基站eNB、中继站RN、小区协作实体MCE、网关GW、移动性管理设备MME、演进型通用陆地无线接入网EUTRAN、操作管理及维护管理器OAM。
根据本发明的再一方面,提供了一种媒体接入控制协议数据单元MAC PDU数量的指示装置,应用于发送端UE侧,包括:第二指示模块,设置为根据本地信息确定并指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q。
在本发明实施例中,所述第二指示模块根据以下至少之一确定并指示所述数量Q:所述周期内的PSSCH子帧数量、每个所述MAC PDU的传输次数、所述发送端UE的待发送数据量、D2D信道测量报告。
在本发明实施例中,所述发送端UE指示的所述数量Q小于或等于周期内所述PSSCH子帧能够承载的最大所述MAC PDU的数量。
在本发明实施例中,所述发送端UE在边链路控制消息SCI中以n bit指示所述数量Q,其中,所述n=1,2,3,4。
在本发明实施例中,所述D2D资源周期内的所述PSSCH子帧包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
根据本发明的又一方面,提供了一种媒体接入控制协议数据单元MAC PDU数量的指示装置,应设置为***中,所述***至少包括发送端UE和网络侧实体,其中,所述网络侧实体通过高层信令和/或物理层信令指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,或所述MAC PDU数量的参考值Q0,并且,所述发送端UE根据所述网络侧指示的所述数量Q或所述参考值Q0,确定并指示传输的所述MAC PDU的数量Q,其中,所述Q≤Q0。
在本发明实施例中,所述网络侧实体通过高层信令和/或物理层信令指示所述数量Q或所述参考值Q0,包括以下至少之一:所述网络侧实体通过所述高层信令指示所述数量Q或所述参考值Q0包括以下至少之一:所述网络侧实体通过***信息块SIB指示所述数量Q或所述参考值Q0、所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值;所述网络侧实体通过所述物理层信令指示所述数量Q或所述参考值Q0包括:所述网络侧实体通过D2D专用下行控制信息格式DCI format 5中的n bit指示信息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值,所述n=1,2,3,4;所述网络侧实体通过所述高层信令和所述物理层信令指示所述数量Q或所述参考值Q0包括:所述网络侧实体通过高层信令指示一个或多个所述数量Q,所述网络侧实体通过物理层信令在一个或多个所述数量Q中指示唯一的数量Q,或者在所述一个或多个所述参考值Q0中指示唯一的数量Q。
在本发明实施例中,当所述网络侧实体通过***信息块SIB指示所述数量Q或所述参考值Q0时,所述数量Q或所述参考值Q0对小区内所有D2D发送端有效,或者对指定的D2D群组内的发送端UE有效。
在本发明实施例中,当所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0时,所述RRC消息为D2D专用配置指示消息D2D重配置消息。
在本发明实施例中,当所述发送端UE根据网络侧实体指示的所述数量Q或所述参考值Q0,并且确定并指示所述数量Q时,所述发送端UE根据以下至少之一确定并
指示所述数量Q:所述周期内的PSSCH子帧数量、每个所述MAC PDU的传输次数、所述发送端UE的待发送数据量、D2D信道测量报告。
在本发明实施例中,所述数量Q或所述参考值Q0小于或等于周期内所述PSSCH子帧能够承载的最大所述MAC PDU的数量。
在本发明实施例中,所述发送端UE在边链路控制消息SCI中以n bit指示所述数量Q,其中,所述n=1,2,3,4。
在本发明实施例中,所述D2D资源周期内的所述PSSCH子帧包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
在本发明实施例中,所述网络侧实体包括以下实体至少之一:演进型基站eNB、中继站RN、小区协作实体MCE、网关GW、移动性管理设备MME、演进型通用陆地无线接入网EUTRAN、操作管理及维护管理器OAM。
通过本发明实施例,采用在边链路控制信息SCI中指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,其中,所述数量Q由下列方法中的至少一种指示:网络侧实体通过高层信令和/或物理层信令指示所述数量Q;发送端UE根据本地信息确定并指示所述数量Q;网络侧实体通过高层信令和/或物理层信令指示所述MAC PDU数量Q或所述MAC PDU数量Q的参考值Q0,并且发送端UE确定并指示所述MAC PDU的数量Q,其中,Q≤Q0,解决了相关技术中存在的D2D数据传输的灵活性低的问题,进而达到了提高D2D数据传输的灵活性,提高资源利用率的效果。
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1是相关技术中的D2D通信的结构框图;
图2是相关技术中的LTE***帧结构框图;
图3是相关技术中的LTE资源调度指示图;
图4是相关技术中的D2D通信资源调度指示图;
图5是根据本发明实施例的媒体接入控制协议数据单元MAC PDU数量的指示方法的流程图;
图6是根据本发明实施例的媒体接入控制协议数据单元MAC PDU数量的指示装置一的结构框图;
图7是根据本发明实施例的媒体接入控制协议数据单元MAC PDU数量的指示装置二的结构框图;
图8是根据本发明实施例的媒体接入控制协议数据单元MAC PDU数量的指示装置三的结构框图;
图9是根据本发明实施例的网络侧通过SIB信息配置指示MACPDU传输数量Q的信令流程图;
图10是根据本发明实施例的网络侧通过RRC消息配置指示MAC PDU传输数量Q的信令流程图;
图11是根据本发明实施例二的数据传输示意图;
图12是根据本发明实施例的网络侧通过RRC消息以及D2D DCI信令配置指示MAC PDU传输数量Q的信令流程图;
图13是根据本发明实施例的发送端UE确定并指示MAC PDU传输数量Q的信令流程图;
图14是根据本发明实施例四的数据传输示意图;
图15是根据本发明实施例的网络侧通过RRC消息指示MAC PDU数量参考值Q0,以及发送端UE确定并指示MAC PDU传输数量Q的信令流程图。
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
在本发明实施例中提供了一种媒体接入控制协议数据单元MAC PDU数量的指示方法,图5是根据本发明实施例的媒体接入控制协议数据单元MAC PDU数量的指示方法的流程图,如图5所示,该流程包括如下步骤:
步骤S502,在边链路控制信息SCI中指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,其中,数量Q由下列方法中的至少一种指示:网络侧实体通过高层信令和/或物理层信令指示数量Q;发送端UE根据本地信息确定并指示数量Q;网络侧实体通过高层信令和/或物理层信令指示MAC PDU数量Q或MAC PDU数量Q的参考值Q0,并且发送端UE确定并指示MAC PDU的数量Q,其中,Q≤Q0。
通过上述步骤,采用在边链路控制信息SCI中指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,其中,数量Q由下列方法中的至少一种指示:网络侧实体通过高层信令和/或物理层信令指示数量Q;发送端UE根据本地信息确定并指示数量Q;网络侧实体通过高层信令和/或物理层信令指示MAC PDU数量Q或MAC PDU数量Q的参考值Q0,并且发送端UE确定并指示MAC PDU的数量Q,其中,Q≤Q0,解决了相关技术中存在的D2D数据传输的灵活性低的问题,进而达到了提高D2D数据传输的灵活性,提高资源利用率的效果。
在一个优选的实施例中,网络侧实体通过高层信令和/或物理层信令指示数量Q或参考值Q0,可以包括以下至少之一:网络侧实体通过高层信令指示数量Q或参考值Q0包括以下至少之一:网络侧实体通过***信息块SIB指示数量Q或参考值Q0、网络侧实体通过无线资源控制RRC消息指示数量Q或参考值Q0,数量Q或参考值Q0为唯一数值;网络侧实体通过物理层信令指示数量Q或参考值Q0包括:网络侧实体通过D2D专用下行控制信息格式DCI format 5中的n bit指示信息指示数量Q或参考值Q0,数量Q或参考值Q0为唯一数值,n=1,2,3,4;网络侧实体通过高层信令和物理层信令指示数量Q或参考值Q0包括:网络侧实体通过高层信令指示一个或多个数量Q,或一个或多个参考值Q0,网络侧实体通过物理层信令在一个或多个数量Q中指示唯一数量Q,或者在一个或多个参考值Q0中指示唯一数量Q。
在上述优选的实施例中,当网络侧实体通过***信息块SIB指示数量Q或参考值Q0时,数量Q或参考值Q0对小区内所有D2D发送端UE有效,或者对指定的D2D群组内的发送端UE有效。
其中,当网络侧实体通过无线资源控制RRC消息指示数量Q或参考值Q0时,RRC消息为D2D专用配置指示消息D2D重配置消息。
其中,当发送端UE根据本地信息确定并指示数量Q时,或当发送端UE根据网络侧实体指示的数量Q值或参考值Q0确定并指示数量Q时,发送端UE根据以下至
少之一确定并指示数量Q:周期内的PSSCH子帧数量、每个MAC PDU的传输次数、发送端UE的待发送数据量、D2D信道测量报告。
其中,MAC PDU的数量Q或参考值Q0小于或等于周期内PSSCH子帧能够承载的最大MAC PDU的数量。
其中,在上述的在SCI中指示数量Q时,以n bit指示数量Q,其中,n=1,2,3,4。
并且,D2D资源周期内的PSSCH子帧可以包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
其中,网络侧实体包括以下实体至少之一:演进型基站eNB、中继站RN、小区协作实体MCE、网关GW、移动性管理设备MME、演进型通用陆地无线接入网EUTRAN、操作管理及维护管理器OAM。
在本实施例中还提供了一种媒体接入控制协议数据单元MAC PDU数量的指示装置,该装置用于实现上述实施例及优选实施方式,已经进行过说明的不再赘述。如以下所使用的,术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现,但是硬件,或者软件和硬件的组合的实现也是可能并被构想的。
图6是根据本发明实施例的媒体接入控制协议数据单元MAC PDU数量的指示装置一的结构框图,如图6所示,该MAC PDU数量的指示装置一60应用于网络实体侧,包括第一指示模块62,下面对该装置进行说明。
第一指示模块62,设置为通过高层信令和/或物理层信令指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,或者MAC PDU数量的参考值Q0。
其中,第一指示模块62可以通过以下方式至少之一指示数量Q或参考值Q0:网络侧实体通过高层信令指示数量Q或参考值Q0包括以下至少之一:网络侧实体通过***信息块SIB指示数量Q或参考值Q0、网络侧实体通过无线资源控制RRC消息指示数量Q或参考值Q0,数量Q或参考值Q0为唯一数值;网络侧实体通过物理层信令指示数量Q或参考值Q0包括:网络侧实体通过D2D专用下行控制信息格式DCI format5中的n bit指示信息指示数量Q或参考值Q0,数量Q或参考值Q0为唯一数值,n=1,2,3,4;网络侧实体通过高层信令和物理层信令指示数量Q或参考值Q0包括:网络侧实体通过高层信令指示一个或多个数量Q,或一个或多个参考值Q0,网络侧实体通
过物理层信令在一个或多个数量Q中指示唯一的数量Q,或者在一个或多个参考值Q0中指示唯一的数量Q。
其中,当网络侧实体通过***信息块SIB指示数量Q或参考值Q0时,数量Q或参考值Q0对小区内所有D2D发送端有效,或者对指定的D2D群组内的发送端UE有效。
其中,当网络侧实体通过无线资源控制RRC消息指示数量Q或参考值Q0时,RRC消息为D2D专用配置指示消息D2D重配置消息。
其中,数量Q或参考值Q0小于或等于周期内PSSCH子帧能够承载的最大MAC PDU的数量。
其中,D2D资源周期内的PSSCH子帧包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
其中,网络侧实体包括以下实体至少之一:演进型基站eNB、中继站RN、小区协作实体MCE、网关GW、移动性管理设备MME、演进型通用陆地无线接入网EUTRAN、操作管理及维护管理器OAM。
图7是根据本发明实施例的媒体接入控制协议数据单元MAC PDU数量的指示装置二的结构框图,如图7所示,该MAC PDU数量的指示装置二70应用于发送端UE侧,包括第二指示模块72,下面对该装置进行说明。
第二指示模块72,设置为根据本地信息确定并指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q。
其中,第二指示模块72可以根据以下至少之一确定并指示数量Q:周期内的PSSCH子帧数量、每个MAC PDU的传输次数、发送端UE的待发送数据量、D2D信道测量报告。
其中,发送端UE指示的数量Q小于或等于周期内PSSCH子帧能够承载的最大MAC PDU的数量。
其中,发送端UE在边链路控制消息SCI中以n bit指示数量Q,其中,n=1,2,3,4。
其中,D2D资源周期内的PSSCH子帧包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
图8是根据本发明实施例的媒体接入控制协议数据单元MAC PDU数量的指示装置三的结构框图,如图8所示,该MAC PDU数量的指示装置三80应用于***中,至少包括发送端UE82和网络侧实体84,下面对该装置进行说明。
网络侧实体84通过高层信令和/或物理层信令指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,或MAC PDU数量的参考值Q0,并且,发送端UE82根据网络侧指示的数量Q或参考值Q0,确定并指示传输的MAC PDU的数量Q,其中,Q≤Q0。
其中,网络侧实体通过高层信令和/或物理层信令指示数量Q或参考值Q0,包括以下至少之一:网络侧实体通过高层信令指示数量Q或参考值Q0包括以下至少之一:网络侧实体通过***信息块SIB指示数量Q或参考值Q0、网络侧实体通过无线资源控制RRC消息指示数量Q或参考值Q0,数量Q或参考值Q0为唯一数值;网络侧实体通过物理层信令指示数量Q或参考值Q0包括:网络侧实体通过D2D专用下行控制信息格式DCI format 5中的n bit指示信息指示数量Q或参考值Q0,数量Q或参考值Q0为唯一数值,n=1,2,3,4;网络侧实体通过高层信令和物理层信令指示数量Q或参考值Q0包括:网络侧实体通过高层信令指示一个或多个数量Q,网络侧实体通过物理层信令在一个或多个数量Q中指示唯一的数量Q,或者在一个或多个参考值Q0中指示唯一的数量Q。
其中,当网络侧实体通过***信息块SIB指示数量Q或参考值Q0时,数量Q或参考值Q0对小区内所有D2D发送端有效,或者对指定的D2D群组内的发送端UE有效。
其中,当网络侧实体通过无线资源控制RRC消息指示数量Q或参考值Q0时,RRC消息为D2D专用配置指示消息D2D重配置消息。
其中,当发送端UE根据网络侧实体指示的数量Q或参考值Q0,并且确定并指示数量Q时,发送端UE根据以下至少之一确定并指示数量Q:周期内的PSSCH子帧数量、每个MAC PDU的传输次数、发送端UE的待发送数据量、D2D信道测量报告。
其中,数量Q或参考值Q0小于或等于周期内PSSCH子帧能够承载的最大MAC PDU的数量。
其中,发送端UE在边链路控制消息SCI中以n bit指示数量Q,其中,n=1,2,3,4。
其中,D2D资源周期内的PSSCH子帧包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
其中,网络侧实体包括以下实体至少之一:演进型基站eNB、中继站RN、小区协作实体MCE、网关GW、移动性管理设备MME、演进型通用陆地无线接入网EUTRAN、操作管理及维护管理器OAM。
针对相关技术中存在的D2D数据传输的灵活性低的问题本发明实施例中还提出了一种数据传输的指示方法及设备,其中,通过物理层和/或高层控制信令指示在D2D通信周期内,发送端UE传输的数据媒体接入控制协议数据单元MAC PDU数量,提供高效、灵活的数据传输控制指示,从而解决MAC PDU传输次数与PSSCH子帧数量不匹配的问题,提供满足D2D通信业务需求的资源配置,提高D2D数据传输的配置灵活性,提高资源利用率。
为使本发明实施例的上述目的、技术方案和优点更加清楚明白,下文中将结合附图对本发明的实施例进行详细说明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。
网络侧可以包括以下实体中的一种或多种:演进型基站(evolved NodeB,简称为eNB)、中继站(Relay Node,简称为RN)、小区协作实体(Multi-cell/multicast Coordination Entity,简称为MCE)、网关(GateWay,简称为GW)、移动性管理设备(Mobility Management Entity,简称为MME)、演进型通用陆地无线接入网(Evolved Universal Terrestrial Radio Access Network,简称为EUTRAN)、操作管理及维护管理器(Operation Administration and Maintenance,简称为OAM),下面以eNB作为网络侧的配置控制实体为例进行说明。
在D2D通信***中,有D2D数据待发送的D2D发送端UE可以从eNB获得D2D通信的物理边链路共享信道(Physical Sidelink Shared Channel,简称为PSSCH)资源配置,或者在***预定义的资源池中选择一定的PSSCH资源使用,不论发送端UE如何获得PSSCH资源,发送端UE都需要通过D2D控制指示信息,也可以称为边链路(即D2D链路)控制信息(Sidelink Control Information,简称为SCI)向接收端UE指示所使用的PSSCH资源,以及其他与D2D数据发射相关的控制信息,如消息控制***(Message Control System,简称为MCS)、UE ID等。在一个D2D资源周期内,SCI所在的物理边链路控制信道(Physical Sidelink Control Channel,简称为PSCCH)信道资源与承载D2D数据的PSSCH资源以子帧subframe为单位划分,在PSCCH subframe上承载D2D控制指示信息,在PSSCH subframe上承载D2D数据,如图4所
示,PSSCH subframe可以是指全部***上行子帧、或***预定义或配置的PSSCH子帧资源池中的子帧,或是由时域资源图样(Time Resource Pattern,简称为TRP)指示的子帧。发送端UE在SCI中承载关于PSSCH子帧的控制指示信息,用于指示在一个周期内传输的D2D data的相关信息,包括PSSCH配置、MCS等。发送端UE通过SCI向一个或多个接收端UE指示出相应的D2D数据资源配置,使接收端UE在收到控制指示信息后,能够获得PSSCH子帧指示,并根据指示在相应的信道资源上接收所需的数据。
发送端UE在一个周期内的PSSCH上可以传输一个或多个MAC PDU,即所传输的MAC PDU数量Q大于等于1。数量Q的值的确定方法可以有如下三种:
方法一
由eNB向发送端UE指示Q值:
当发送端UE所使用的PSSCH资源由eNB配置指示时,eNB还可以进一步配置指示发送端UE在周期内的PSSCH子帧上传输的MAC PDU数量,用于精确调整控制D2D资源配置。
其中,eNB可以通过高层信令和/或物理层信令指示发送端UE关于Q值的配置。
当Q由高层信令或物理层信令指示时,eNB所指示的Q值为唯一数值,发送端UE在周期内传输Q个MAC PDU;
当Q由高层信令和物理层信令指示时,eNB通过高层信令指示一个或多个所述Q值,即指示一组Q值列表,并进一步通过物理层信令在Q值列表中指示一个实际使用的Q值,发送端UE以最终物理层指示的Q值,在周期内传输Q个MAC PDU。
其中,eNB通过高层信令指示Q值时,可以采用***信息块SIB(System Information Block,也称为***广播消息)进行指示,此时在SIB中指示的Q值为小区级参数,即对小区内所有D2D UE都是统一有效的,或者,可选地,SIB可以按照不同的D2D UE group进行Q值配置,则配置指示的Q值对于属于相应D2D group的UE都是统一有效的。
其中,eNB通过高层信令指示Q值时,还可以采用无线资源控制(Radio Resource Control,简称为RRC)消息进行指示,RRC消息为UE级配置指示信息,可以独立为每个UE进行Q值的配置指示,所指示的Q值仅对接收此RRC消息的发送端UE有
效。可选地,用于配置指示Q值的RRC消息为D2D通信专用配置指示消息D2DReconfiguration。
其中,eNB通过物理层信令指示Q值时,可以采用D2D专用下行控制信息格式DCI format 5进行指示,通过在D2D DCI中的相应指示bit位向发送端UE指示所配置的Q值。
方法二
由发送端UE自己确定Q值:
当发送端UE在D2D资源池中自行选择PSSCH子帧用于传输D2D MAC PDU时,或者eNB向发送端UE指示了所配置的PSSCH子帧资源,但未指示相应的Q值时,发送端UE可以自己确定Q值,并在周期内的PSSCH子帧上传输Q个MAC PDU,达到满足自身数据传输需求的目的。
其中,发送端UE确定Q值时,可以基于下列因素的一项或多项确定该Q值:周期内的PSSCH子帧数量、每个MAC PDU的传输次数、发送端UE的待发送数据量、D2D信道测量报告等。
其中,发送端UE确定的Q值不能超过周期内PSSCH子帧能够承载的最大MAC PDU数量。
其中,发送端UE在SCI中指示Q值,使接收端UE能够在PSSCH子帧上准确接收所发送的MAC PDU,达到节省功率、降低接收端复杂度等作用。其中,发送端UE在SCI中以n bit指示Q值,n=1,2,3,4。
方法三
由eNB和发送端UE共同确定Q值:
eNB通过高层信令或物理层信令指示发送端UE发送MAC PDU的一个参考值Q0,发送端UE可选地自行确定实际发送的MAC PDU数量Q,且Q≤Q0。
eNB通过高层信令指示Q0值时,可以采用***信息块SIB(System Information Block,也称为***广播消息)进行指示,此时在SIB中指示的Q0值为小区级参数,即对小区内所有D2D UE都是统一有效的,或者,可选地,SIB可以按照不同的D2D UE group进行Q0值配置,则配置指示的Q0值对于属于相应D2D group的UE都是统一有效的。
eNB通过高层信令指示Q0值时,还可以采用无线资源控制RRC(Radio Resource Control)消息进行指示,RRC消息为UE级配置指示信息,可以独立为每个UE进行Q0值的配置指示,所指示的Q0值仅对接收此RRC消息的发送端UE有效。可选地,用于配置指示Q0值的RRC消息为D2D通信专用配置指示消息D2DReconfiguration。
eNB通过物理层信令指示Q0值时,可以采用D2D专用下行控制信息格式DCI format 5进行指示,通过在D2D DCI中的相应指示bit位向发送端UE指示所配置的Q0值。
其中,发送端UE基于eNB配置的Q0值,确定实际发送的MAC PDU数量Q,并在周期内的PSSCH子帧上传输Q个MAC PDU,达到满足自身数据传输需求的目的。
发送端UE确定Q值时,可以基于下列因素的一项或多项确定Q值:周期内的PSSCH子帧数量、每个MAC PDU的传输次数、发送端UE的待发送数据量、D2D信道测量报告等,其中,发送端UE确定的Q值不能超过eNB配置的参考值Q0,即Q≤Q0。
其中,发送端UE在SCI中指示Q值,使接收端UE能够在PSSCH子帧上准确接收所发送的MAC PDU,达到节省功率、降低接收端复杂度等作用。其中,发送端UE在SCI中以n bit指示Q值,n=1,2,3,4。
下面结合具体实施例对上述指示数量Q的值的方法进行说明:
实施例一
图9是根据本发明实施例的网络侧通过SIB信息配置指示MACPDU传输数量Q的信令流程图,如图9所示,eNB通过SIB信息配置指示小区内所有D2D UE统一的Q值,所指示的Q=4,则D2D UE根据配置指示,在SCI中以2bit指示Q=4,并在D2D资源周期内的相应PSSCH子帧上依次传输4个MAC PDU;或者,由于SIB消息能够被所有小区内D2D UE接收到,因此发送端UE可以不需要再次指示eNB配置的Q值,即在SCI中不再承载关于Q值的指示,则接收端UE根据从SIB中收到的Q值配置,结合发送端UE SCI信令中的相关控制指示,接收所传输的4个MAC PDU。
通过SIB配置D2D UE在周期内传输的MAC PDU数量,可以达到更精确的资源调度控制,为发送端UE及接收端UE节能、降低数据接收复杂度,且能够提高资源利用率,在eNB的统一调度配置下,充分利用***资源的作用。
实施例二
图10是根据本发明实施例的网络侧通过RRC消息配置指示MAC PDU传输数量Q的信令流程图,如图10所示,eNB通过D2DReconfiguration消息配置指示D2D发送端UE的Q值,所指示的Q=3,则发送端UE根据配置指示,在SCI中以2bit指示Q=3,并在D2D资源周期内的相应PSSCH子帧上依次传输3个MAC PDU。
发送端UE的PSSCH子帧配置以及传输的3个MAC PDU资源配置如图11所示,图11是根据本发明实施例二的数据传输示意图,在一个D2D资源周期内,发送端UE获得了15个PSSCH子帧的配置,按照***要求,每个MAC PDU需要传输4次,每次传输在时域上需占用一个PSSCH子帧,因此15个PSSCH子帧不能够恰好满足对每个MAC PDU传输4次的要求,从而出现了剩余子帧,eNB在为发送端UE配置指示PSSCH子帧的同时,通过RRC信令指示在周期内传输的MAC PDU数量Q=3,则发送端UE根据PSSCH子帧配置以及Q值配置,仅需要在周期内的PSSCH子帧上依次传输3个MAC PDU,共使用12个PSSCH子帧即可,剩余的3个PSSCH子帧上,发送端UE不发送数据,相应资源可以由eNB进行调度使用。
eNB通过RRC消息控制指示发送端UE在周期内传输的MAC PDU数量,可以达到更精确的资源调度控制,为发送端UE及接收端UE节能、降低数据接收复杂度,且能够提高资源利用率,在eNB的统一调度配置下,充分利用***资源的作用。
实施例三
图12是根据本发明实施例的网络侧通过RRC消息以及D2D DCI信令配置指示MAC PDU传输数量Q的信令流程图,如图12所示,eNB通过D2DReconfiguration消息配置指示D2D发送端UE一组可用的Q值列表,包括Q=[1,4,8,12],并进一步通过DCI format 5动态指示实际使用的Q值,当eNB在DCI format 5中指示发送端UE使用可用Q值列表中的第三个数值时,即Q=8,则发送端UE根据配置指示,在SCI中以3bit指示Q=8,并在D2D SCI/data资源周期内的相应PSSCH子帧上依次传输8个MAC PDU。
eNB通过RRC消息控制指示发送端UE在周期内可用的传输MAC PDU数量,并通过DCI format 5动态调整实际使用的Q值配置,可以达到更实时精确的资源调度控制,为发送端UE及接收端UE节能、满足发送端UE的业务需求,降低接收端UE的数据接收复杂度,且能够提高资源利用率,在eNB的统一调度配置下,充分利用***资源的作用。
实施例四
图13是根据本发明实施例的发送端UE确定并指示MAC PDU传输数量Q的信令流程图,如图13所示,D2D发送端UE在预定义的PSSCH子帧资源池中选择若干子帧作为自己的PSSCH子帧,用于传输D2D MAC PDU。基于所选择的PSSCH子帧,发送端UE可以确定相应的Q值,例如通过TRP选择并指示出10个PSSCH子帧,且按照***要求,每个MAC PDU需要进行4次传输,则发送端UE最多只能完整传输2个MAC PDU,因此发送端UE确定Q=2,并在SCI中以3bit指示Q=2,可选地,在D2D资源周期内的相应PSSCH子帧上依次传输2个MAC PDU。
发送端UE的PSSCH子帧配置以及传输的2个MAC PDU资源配置如图14所示,该图14是根据本发明实施例四的数据传输示意图。在一个SCI/data周期内,发送端UE选择了10个PSSCH子帧的配置,按照***要求,每个MAC PDU需要传输4次,每次传输在时域上需占用一个PSSCH子帧,因此10个PSSCH子帧不能够恰好满足对每个MAC PDU传输4次的要求,从而出现了剩余子帧,发送端UE根据PSSCH子帧配置以及MAC PDU传输次数的要求,确定Q=2,在周期内的PSSCH子帧上依次传输2个MAC PDU,共使用8个PSSCH子帧,剩余的2个PSSCH子帧上,发送端UE不发送数据。
发送端UE根据PSSCH子帧资源情况,以及MAC PDU传输次数等要求,自己确定在一个周期内传输MAC PDU的数量Q,并在SCI中指示出所确定的Q值,使发送端UE能够按照自身业务需求及PSSCH子帧情况等确定Q值,达到满足发送端UE的业务需求,降低接收端UE的数据接收复杂度的作用。
实施例五
eNB通过D2DReconfiguration消息配置指示D2D发送端MAC PDU发送数量参考值Q0,所指示的Q0=6,并为发送端UE配置PSSCH资源。D2D UE根据配置指示,结合自身的业务需求及信道情况,确定在所配置的PSSCH资源上发送4个MAC PDU,即Q=4。
发送端UE在SCI中以2bit指示Q=4,并在D2D资源周期内的相应PSSCH子帧上依次传输4个MAC PDU,信令流程如图15所示,该图15是根据本发明实施例的网络侧通过RRC消息指示MAC PDU数量参考值Q0,以及发送端UE确定并指示MAC PDU传输数量Q的信令流程图。
eNB通过RRC配置D2D UE在周期内传输的MAC PDU数量参考值,并进一步由发送端UE更精确的调整实际发送的MAC PDU数量,可以达到发送端UE及接收端UE节能、降低数据接收复杂度的作用,且能够提高资源利用率,在eNB的统一调度配置下,充分利用***资源的作用。
显然,本领域的技术人员应该明白,上述的本发明实施例的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
如上所述,通过上述实施例及优选实施方式,解决了相关技术中存在的D2D数据传输的灵活性低的问题,进而达到了提高D2D数据传输的灵活性,提高资源利用率的效果。
Claims (30)
- 一种媒体接入控制协议数据单元MAC PDU数量的指示方法,包括:在边链路控制信息SCI中指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,其中,所述数量Q由下列方法中的至少一种指示:网络侧实体通过高层信令和/或物理层信令指示所述数量Q;发送端UE根据本地信息确定并指示所述数量Q;网络侧实体通过高层信令和/或物理层信令指示所述MAC PDU数量Q或所述MAC PDU数量Q的参考值Q0,并且,发送端UE确定并指示所述MAC PDU的数量Q,其中,Q≤Q0。
- 根据权利要求1所述的方法,其中,网络侧实体通过高层信令和/或物理层信令指示所述数量Q或所述参考值Q0,包括以下至少之一:所述网络侧实体通过所述高层信令指示所述数量Q或所述参考值Q0包括以下至少之一:所述网络侧实体通过***信息块SIB指示所述数量Q或所述参考值Q0、所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值;所述网络侧实体通过所述物理层信令指示所述数量Q或所述参考值Q0包括:所述网络侧实体通过D2D专用下行控制信息格式DCI format 5中的n bit指示信息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值,n=1,2,3,4;所述网络侧实体通过所述高层信令和所述物理层信令指示所述数量Q或所述参考值Q0包括:所述网络侧实体通过高层信令指示一个或多个所述数量Q,或一个或多个所述参考值Q0,所述网络侧实体通过物理层信令在所述一个或多个所述数量Q中指示唯一数量Q,或者在所述一个或多个所述参考值Q0中指示唯一的数量Q。
- 根据权利要求2所述的方法,其中,当所述网络侧实体通过***信息块SIB指示所述数量Q或所述参考值Q0时,所述数量Q或所述参考值Q0对小区内所有D2D发送端UE有效,或者对指定的D2D群组内的发送端UE有效。
- 根据权利要求2所述的方法,其中,当所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0时,所述RRC消息为D2D专用配置指示消息D2D重配置消息。
- 根据权利要求1所述的方法,其中,当所述发送端UE根据本地信息确定并指示所述数量Q时,或当所述发送端UE根据网络侧实体指示的所述数量Q值或所述参考值Q0确定并指示所述数量Q时,所述发送端UE根据以下至少之一确定并指示所述数量Q:所述周期内的PSSCH子帧数量、每个所述MAC PDU的传输次数、所述发送端UE的待发送数据量、D2D信道测量报告。
- 根据权利要求1所述的方法,其中,所述MAC PDU的数量Q或所述参考值Q0小于或等于周期内所述PSSCH子帧能够承载的最大所述MAC PDU的数量。
- 根据权利要求1所述的方法,其中,在所述SCI中指示所述数量Q时,以n bit指示所述数量Q,其中,n=1,2,3,4。
- 根据权利要求1所述的方法,其中,所述D2D资源周期内的所述PSSCH子帧包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
- 根据权利要求1所述的方法,其中,网络侧实体包括以下实体至少之一:演进型基站eNB、中继站RN、小区协作实体MCE、网关GW、移动性管理设备MME、演进型通用陆地无线接入网EUTRAN、操作管理及维护管理器OAM。
- 一种媒体接入控制协议数据单元MAC PDU数量的指示装置,其特征在于,应用于网络实体侧,包括:第一指示模块,设置为通过高层信令和/或物理层信令指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,或者所述MAC PDU数量的参考值Q0。
- 根据权利要求10所述的装置,其中,所述第一指示模块通过以下方式至少之一指示所述数量Q或所述参考值Q0:所述网络侧实体通过所述高层信令指示所述数量Q或所述参考值Q0包括以下至少之一:所述网络侧实体通过***信息块SIB指示所述数量Q或所述参考值Q0、所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值;所述网络侧实体通过所述物理层信令指示所述数量Q或所述参考值Q0包括:所述网络侧实体通过D2D专用下行控制信息格式DCI format 5中的n bit指示信息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值,n=1,2,3,4;所述网络侧实体通过所述高层信令和所述物理层信令指示所述数量Q或所述参考值Q0包括:所述网络侧实体通过高层信令指示一个或多个所述数量Q,或一个或多个所述参考值Q0,所述网络侧实体通过物理层信令在所述一个或多个所述数量Q中指示唯一的数量Q,或者在所述一个或多个所述参考值Q0中指示唯一的数量Q。
- 根据权利要求11所述的装置,其中,当所述网络侧实体通过***信息块SIB指示所述数量Q或所述参考值Q0时,所述数量Q或所述参考值Q0对小区内所有D2D发送端有效,或者对指定的D2D群组内的发送端UE有效。
- 根据权利要求11所述的装置,其中,当所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0时,所述RRC消息为D2D专用配置指示消息D2D重配置消息。
- 根据权利要求10所述的装置,其中,所述数量Q或所述参考值Q0小于或等于周期内所述PSSCH子帧能够承载的最大所述MAC PDU的数量。
- 根据权利要求10所述的装置,其中,所述D2D资源周期内的所述PSSCH子帧包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
- 根据权利要求10所述的装置,其中,所述网络侧实体包括以下实体至少之一:演进型基站eNB、中继站RN、小区协作实体MCE、网关GW、移动性管理设备MME、演进型通用陆地无线接入网EUTRAN、操作管理及维护管理器OAM。
- 一种媒体接入控制协议数据单元MAC PDU数量的指示装置,应用于发送端UE侧,包括:第二指示模块,设置为根据本地信息确定并指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q。
- 根据权利要求17所述的装置,其中,所述第二指示模块根据以下至少之一确定并指示所述数量Q:所述周期内的PSSCH子帧数量、每个所述MAC PDU的传输次数、所述发送端UE的待发送数据量、D2D信道测量报告。
- 根据权利要求17所述的装置,其中,所述发送端UE指示的所述数量Q小于或等于周期内所述PSSCH子帧能够承载的最大所述MAC PDU的数量。
- 根据权利要求17所述的装置,其中,所述发送端UE在边链路控制消息SCI中以n bit指示所述数量Q,其中,n=1,2,3,4。
- 根据权利要求17所述的装置,其中,所述D2D资源周期内的所述PSSCH子帧包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
- 一种媒体接入控制协议数据单元MAC PDU数量的指示装置,应用于***中,所述***至少包括发送端UE和网络侧实体,其中,所述网络侧实体通过高层信令和/或物理层信令指示在一个设备到设备D2D资源周期内的物理边链路共享信道PSSCH子帧上依次传输的媒体接入控制协议数据单元MAC PDU的数量Q,或所述MAC PDU数量的参考值Q0,并且,所述发送端UE根据所述网络侧指示的所述数量Q或所述参考值Q0,确定并指示传输的所述MAC PDU的数量Q,其中,所述Q≤Q0。
- 根据权利要求22所述的装置,其中,所述网络侧实体通过高层信令和/或物理层信令指示所述数量Q或所述参考值Q0,包括以下至少之一:所述网络侧实体通过所述高层信令指示所述数量Q或所述参考值Q0包括以下至少之一:所述网络侧实体通过***信息块SIB指示所述数量Q或所述参 考值Q0、所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值;所述网络侧实体通过所述物理层信令指示所述数量Q或所述参考值Q0包括:所述网络侧实体通过D2D专用下行控制信息格式DCI format 5中的n bit指示信息指示所述数量Q或所述参考值Q0,所述数量Q或所述参考值Q0为唯一数值,n=1,2,3,4;所述网络侧实体通过所述高层信令和所述物理层信令指示所述数量Q或所述参考值Q0包括:所述网络侧实体通过高层信令指示一个或多个所述数量Q,所述网络侧实体通过物理层信令在一个或多个所述数量Q中指示唯一的数量Q,或者在所述一个或多个所述参考值Q0中指示唯一的数量Q。
- 根据权利要求23所述的装置,其中,当所述网络侧实体通过***信息块SIB指示所述数量Q或所述参考值Q0时,所述数量Q或所述参考值Q0对小区内所有D2D发送端有效,或者对指定的D2D群组内的发送端UE有效。
- 根据权利要求23所述的装置,其中,当所述网络侧实体通过无线资源控制RRC消息指示所述数量Q或所述参考值Q0时,所述RRC消息为D2D专用配置指示消息D2D重配置消息。
- 根据权利要求22所述的装置,其中,当所述发送端UE根据网络侧实体指示的所述数量Q或所述参考值Q0,并且确定并指示所述数量Q时,所述发送端UE根据以下至少之一确定并指示所述数量Q:所述周期内的PSSCH子帧数量、每个所述MAC PDU的传输次数、所述发送端UE的待发送数据量、D2D信道测量报告。
- 根据权利要求22所述的装置,其中,所述数量Q或所述参考值Q0小于或等于周期内所述PSSCH子帧能够承载的最大所述MAC PDU的数量。
- 根据权利要求22所述的装置,其中,所述发送端UE在边链路控制消息SCI中以n bit指示所述数量Q,其中,n=1,2,3,4。
- 根据权利要求22所述的装置,其中,所述D2D资源周期内的所述PSSCH子帧包括以下至少之一:***上行子帧、或PSSCH子帧资源池中的子帧、或由时域资源图样TRP指示的子帧。
- 根据权利要求22所述的装置,其中,所述网络侧实体包括以下实体至少之一:演进型基站eNB、中继站RN、小区协作实体MCE、网关GW、移动性管理设备MME、演进型通用陆地无线接入网EUTRAN、操作管理及维护管理器OAM。
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CN115333687A (zh) * | 2021-05-10 | 2022-11-11 | 大唐移动通信设备有限公司 | ***信息发送方法、接收方法、终端和存储介质 |
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