WO2016045409A1 - 比特位数指示方法及装置 - Google Patents
比特位数指示方法及装置 Download PDFInfo
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- WO2016045409A1 WO2016045409A1 PCT/CN2015/080810 CN2015080810W WO2016045409A1 WO 2016045409 A1 WO2016045409 A1 WO 2016045409A1 CN 2015080810 W CN2015080810 W CN 2015080810W WO 2016045409 A1 WO2016045409 A1 WO 2016045409A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
- H04W8/14—Mobility data transfer between corresponding nodes
Definitions
- the present invention relates to the field of communications, and in particular to a method and apparatus for indicating a bit number.
- 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 time slot slots of 0.5 ms.
- FIG. 2 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 transport block (Transport Block, abbreviated as TB) on a corresponding resource block (Resource Block, RB for short) in the subframe #n, and obtaining data transmitted by the eNB, as shown in FIG. 3 is an LTE system resource scheduling indication map in the related art. 4 is a D2D communication resource scheduling indication diagram in the related art.
- Transport Block abbreviated as TB
- Resource Block Resource Block
- the transmitting end UE In the D2D communication system, data is directly transmitted between UEs, and the transmitting end UE itself needs to transmit D2D control information, and indicates to the receiving end UE the transmitted data signal. Relevant information such as resources used. Due to the particularity of the D2D communication, the transmitting UE selects one or more Physical Sidelink Shared Channels (PSSCHs) for transmission of D2D data according to the scheduling of the eNB, or in a valid resource pool. On the D2D link (also known as the side link Sidelink)
- the control information SCI for short
- SCI Servicelink Control Information
- the bitmap sequence of the configured bitmap indicates that the bit bit with the flag of "1" in the indicated bit sequence indicates that the corresponding subframe is a PSSCH subframe, and the bitmap sequence is cyclically mapped in the cycle to implement the configuration indication of the PSSCH subframe in the cycle.
- the flexibility of D2D PSSCH subframe configuration is limited due to the fixed bit sequence length and limited TRP indication overhead.
- the embodiment of the invention provides a method and a device for indicating a bit number to solve at least the problem of low flexibility of D2D PSSCH subframe configuration existing in the related art.
- a method for indicating a bit number of bits includes: a bit of a valid indication bit indicating a physical side link shared channel PSSCH subframe indication bit bitmap sequence of a physical side link and/or a network side entity The number of bits k, where k includes one or more values, 1 ⁇ k ⁇ N, where N is the bit length of the sequence of bits.
- the sending end UE and/or the network side entity indicate, by using high layer signaling and/or physical layer signaling, that the k includes at least one of the following manners: the UE passes the device to the device D2D.
- the broadcast message of the communication indicates the k; the UE indicates the k through an edge link control message SCI between the transmitting terminal and the receiving terminal of the D2D communication; the network side entity indicates the k through the system information block SIB;
- the network side entity indicates the k by a system radio resource control RRC message; the network side entity indicates the k by using side link resource scheduling control signaling.
- the sending end UE and/or the network side entity indicate, by using high layer signaling and/or physical layer signaling, that the k further includes at least one of the following: in the UE through D2D communication
- the broadcast message indicates the k
- the broadcast message is carried on the physical side link broadcast channel PSBCH resource, indicating one or more k values; between the transmitting terminal and the receiving terminal of the UE through D2D communication
- the edge link control message SCI indicates the k
- the k is indicated by the SCI in the UE
- the indication bit corresponding to the time domain resource pattern TRP a k value is indicated by n1 bits, and a n2 bit is used as a bitmap index for indicating a bitmap pattern, wherein Each bitmap index uniquely corresponds to a bitmap pattern, the bitmap index indicating all or part of the bitmap
- the time domain resource pattern TRP indicates a bitmap pattern by a 7-bit index, and each of the TRP indexes uniquely corresponds to a bitmap pattern, and the TRP index indicates the one or more k values corresponding to All or part of the bitmap pattern.
- the TRP index when the time domain resource pattern TRP index indicates all or part of the bitmap corresponding to the plurality of k values, the TRP index sequentially indicates all or part of different k values according to the plurality of k values. bitmap.
- 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, an evolved universal terrestrial radio access network EUTRAN, Operation management and maintenance of the OAM Manager.
- a bit number indicating device is provided, where the device is applied to a transmitting end UE side, and includes: a first indicating module, configured to indicate a physical edge link shared channel PSSCH subframe indicating bit The bit number k of the valid indication bit of the bitmap sequence, where k includes one or more values, 1 ⁇ k ⁇ N, where N is the bit length of the sequence of bits.
- the first indication module includes: the UE indicates the k by using high layer signaling and/or physical layer signaling.
- the first indication module indicates the k by at least one of the following manners: the broadcast message indicating that the UE communicates through the device to the device D2D indicates the k; and the sending terminal of the UE through the D2D communication
- the side link control message SCI between the receiving terminal and the receiving terminal indicates the k.
- the time domain resource pattern TRP indicates a bitmap pattern by a 7-bit index, and each of the TRP indexes uniquely corresponds to a bitmap pattern, and the TRP index indicates the one or more k values corresponding to All or part of the bitmap pattern.
- the TRP index when the time domain resource pattern TRP index indicates all or part of the bitmap corresponding to the plurality of k values, the TRP index sequentially indicates all or part of different k values according to the plurality of k values. bitmap.
- a device for indicating a bit number is provided, where the device is applied to a network entity side, and includes: a second indication module, configured to indicate a physical edge link shared channel PSSCH subframe indication bit bitmap bitmap The bit number k of the valid indication bit of the sequence, where k includes one or more values, 1 ⁇ k ⁇ N, where N is the bit length of the sequence of bits.
- the second indication module includes: the network side entity indicates the k by high layer signaling and/or physical layer signaling.
- the second indication module indicates the k by at least one of: the network side entity indicates the k by using a system information block SIB; and the network side entity controls the RRC by using a system radio resource.
- the message indicates the k; the network side entity indicates the k by the side link resource scheduling control signaling.
- the second indication module further includes at least one of: when the network side entity indicates the k by using a system information block SIB, the indicated one or more k value to the cell All D2D UEs are valid; if the network side entity indicates the k through the system information block SIB, the indicated one or more k values are valid for the UE within the designated D2D group; at the network side entity In the case where the k is indicated by an RRC message, the RRC message is a D2D dedicated configuration indication message D2D reconfiguration message indicating one or more k values; in the side network resource scheduling control signaling in the network side entity In the case of indicating the k, the edge link resource scheduling control signaling is a downlink control information DCI format, where n bits are included for indicating one or more k values, n is equal to 1 or 2 or 3; In the case that the network side entity indicates the k by DCI, the network side entity indicates a k value with n1 bits in the indication bit corresponding
- the time domain resource pattern TRP indicates a bitmap pattern by a 7-bit index, and each of the TRP indexes uniquely corresponds to a bitmap pattern, and the TRP index indicates the one or more k values corresponding to All or part of the bitmap pattern.
- the TRP index when the time domain resource pattern TRP index indicates all or part of the bitmap corresponding to the plurality of k values, the TRP index sequentially indicates all or part of different k values according to the plurality of k values. bitmap.
- 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, an evolved universal terrestrial radio access network EUTRAN, Operation management and maintenance of the OAM Manager.
- a bit number indicating apparatus the apparatus being applied to a system, the system comprising a transmitting end UE and a network side entity, wherein the transmitting end UE and the network side entity are used to indicate physical
- the side link shared channel PSSCH subframe indicates the bit number k of the valid indication bit of the bit bitmap sequence, where k includes one or more values, 1 ⁇ k ⁇ N, where N is the bit length of the bitmap sequence.
- the sending end UE and the network side entity indicating that the k includes: the network side entity and the sending end UE indicate the k by using high layer signaling and/or physical layer signaling. .
- the sending end UE and the network side entity indicate, by using the high layer signaling and the physical layer signaling, that the k includes at least one of the following manners: the network side entity indicates the location by using the system information block SIB.
- the UE indicates the k through a D2D communication broadcast message;
- the network side entity indicates the k through an SIB, and the UE crosses an edge link between the transmitting terminal and the receiving terminal through D2D communication
- the control message SCI indicates the k;
- the network side entity indicates the k through a system radio resource control RRC message, and the UE indicates the k through a D2D communication broadcast message;
- the network side entity indicates by using an RRC message Said k, and said UE indicates said k by an edge link control message SCI;
- said network side entity indicates said k by side link resource scheduling control signaling, and said UE indicates by said D2D communication broadcast message
- the network side entity indicates the k by an edge link resource scheduling control signaling, and the UE indicates the k by an edge link control message SCI.
- the broadcast message is carried on a physical side link broadcast channel PSBCH resource, indicating one or more k values;
- the time domain resource pattern TRP indicates a bitmap pattern by a 7-bit index, and each of the TRP indexes uniquely corresponds to a bitmap pattern, and the TRP index indicates the one or more k values corresponding to All or part of the bitmap pattern.
- the TRP index when the time domain resource pattern TRP index indicates all or part of the bitmap corresponding to the plurality of k values, the TRP index sequentially indicates all or part of different k values according to the plurality of k values. bitmap.
- 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, an evolved universal terrestrial radio access network EUTRAN, Operation management and maintenance of the OAM Manager.
- the transmitting end UE and/or the network side entity are used to indicate the bit number k of the effective indication bit of the physical side link shared channel PSSCH subframe indication bit bitmap sequence, where k includes one or more
- the value, 1 ⁇ k ⁇ N, N is the bit length of the bitmap sequence, which solves the problem of low flexibility of D2D PSSCH subframe configuration in the related art, thereby achieving the flexibility of improving D2D PSSCH subframe configuration. Improve the effect of 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 system resource scheduling indication diagram in the related art
- FIG. 5 is a flowchart of a method for indicating a bit number according to an embodiment of the present invention
- FIG. 6 is a structural block diagram of a bit number indicating apparatus 1 according to an embodiment of the present invention.
- FIG. 7 is a structural block diagram of a bit number indicating device 2 according to an embodiment of the present invention.
- FIG. 8 is a structural block diagram of a bit number indicating device 3 according to an embodiment of the present invention.
- FIG. 9 is a schematic diagram of indicating a PSSCH subframe by a TRP bitmap pattern in D2D communication in the related art
- FIG. 10 is a signaling flowchart of a network side configuring a k value by using an SIB message and forwarding the UE by using a PSBCH according to an embodiment of the present invention
- 11 is a signaling flowchart of a network side configuring a k value through an RRC message and forwarding a UE by using a PSBCH according to an embodiment of the present invention
- FIG. 12 is a signaling flowchart of a network side configuring a k value by an RRC message according to an embodiment of the present invention, and indicating, by the SCI, a value of the k by the SCI;
- FIG. 13 is a signaling flowchart of a network side configuring a k value by physical layer signaling according to an embodiment of the present invention, and a sending end UE indicates a k value by using a TRP.
- FIG. 5 is a flowchart of a method for indicating a bit number according to an embodiment of the present invention. As shown in FIG. 5, the process includes the following steps:
- Step S502 the transmitting end UE and/or the network side entity indicate the bit number k of the valid indication bit of the physical side link shared channel PSSCH subframe indication bit bitmap sequence, where k includes one or more values, 1 ⁇ k ⁇ N, N is the bit length of the bitmap sequence.
- the value of 1 ⁇ k ⁇ N, N is the bit length of the bitmap sequence, which solves the problem of low flexibility of D2D PSSCH subframe configuration in the related art, thereby improving the flexibility of D2D PSSCH subframe configuration and improving The effect of resource utilization.
- the transmitting end UE and/or the network side entity indicating k comprises: the transmitting end UE and/or the network side entity indicating k by higher layer signaling and/or physical layer signaling.
- the transmitting end UE and/or the network side entity may include at least one of the following manners by the high layer signaling and/or the physical layer signaling: the broadcast message indication k of the UE through the device to the device D2D communication; the UE communicating through the D2D
- the side link control message SCI indicates k between the transmitting terminal and the receiving terminal; the network side entity indicates k through the system information block SIB; the network side entity controls the RRC message indication k through the system radio resource; the network side entity performs the side link resource scheduling Control signaling indicates k.
- the time domain resource pattern TRP indicates a bitmap pattern through a 7-bit index, and each TRP index uniquely corresponds to a bitmap pattern, and the TRP index indicates all or part of the bitmap pattern corresponding to one or more k values.
- the TRP index when the time domain resource pattern TRP index indicates all or part of the bitmap corresponding to the plurality of k values, the TRP index sequentially indicates all or part of the bitmaps corresponding to different k values according to the plurality of k values.
- the network side entity may include 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, an evolved universal terrestrial radio access network EUTRAN, operation management, and maintenance OAM. Manager.
- a bit number indicating device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again.
- 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 bit number indicating apparatus 1 according to an embodiment of the present invention. As shown in FIG. 6, the apparatus is applied to a transmitting end UE side, and the bit number indicating apparatus 60 includes a first indicating module 62. The first indication module 62 is described.
- the first indication module 62 is configured to indicate a bit number k of the effective indication bit of the physical edge link shared channel PSSCH subframe indication bit bitmap sequence, where k includes one or more values, 1 ⁇ k ⁇ N, N is the bit length of the bitmap sequence.
- the first indication module 62 includes: the UE indicates k through high layer signaling and/or physical layer signaling.
- the first indication module 62 indicates k by at least one of: the UE indicates a k by a broadcast message of the device-to-device D2D communication; the UE indicates k by an edge link control message SCI between the transmitting terminal of the D2D communication and the receiving terminal.
- the first indication module 62 further includes at least one of the following: in the case that the UE indicates k through the broadcast message of the D2D communication, the broadcast message is carried on the physical side link broadcast channel PSBCH resource, indicating one or more k values.
- the indication ratio of the time domain resource pattern TRP corresponds to the k value, and the n2 bit is used as the bitmap index for indicating the bitmap pattern, wherein each bitmap index uniquely corresponds to one bitmap.
- the time domain resource pattern TRP indicates a bitmap pattern through a 7-bit index, each TRP index uniquely corresponds to a bitmap pattern, and the TRP index indicates all or part of the bitmap pattern corresponding to one or more k values.
- the TRP index when the time domain resource pattern TRP index indicates all or part of the bitmap corresponding to the plurality of k values, the TRP index sequentially indicates all or part of the bitmaps corresponding to different k values according to the plurality of k values.
- FIG. 7 is a structural block diagram of a bit number indicating device 2 according to an embodiment of the present invention. As shown in FIG. 7, the device is applied to a network entity side, and the bit number indicating device 70 includes a second indicating module 72, The second indication module 72 will be described.
- the second indication module 72 is configured to indicate a bit number k of the effective indication bit of the physical edge link shared channel PSSCH subframe indication bit bitmap sequence, where k includes one or more values, 1 ⁇ k ⁇ N, N is the bit length of the bitmap sequence.
- the second indication module 72 includes: the network side entity indicates k through high layer signaling and/or physical layer signaling.
- the second indication module 72 indicates k by at least one of the following: the network side entity indicates k through the system information block SIB; the network side entity controls the RRC message indication k through the system radio resource; and the network side entity performs the side link resource scheduling control signaling Indicates k.
- the second indication module 72 further includes at least one of the following: in the case that the network side entity indicates k through the system information block SIB, the indicated one or more k values are valid for all D2D UEs in the cell; In the case that the information block SIB indicates k, the indicated one or more k values are valid for the UE within the designated D2D group; in the case that the network side entity indicates k by the RRC message, the RRC message is a D2D dedicated configuration indication message D2D.
- the side link resource scheduling control signaling is a control information format DCI format, which includes n
- the bit is used to indicate one or more k values, n is equal to 1 or 2 or 3; in the case that the network side entity indicates k by DCI, the network side entity indicates a k value by n1 bit in the indication bit corresponding to the TRP, N2 bit
- the time domain resource pattern TRP indicates a bitmap pattern through a 7-bit index, each TRP index uniquely corresponds to a bitmap pattern, and the TRP index indicates all or part of the bitmap pattern corresponding to one or more k values.
- the TRP index when the time domain resource pattern TRP index indicates all or part of the bitmap corresponding to the plurality of k values, the TRP index sequentially indicates all or part of the bitmaps corresponding to different k values according to the plurality of k values.
- the network side entity includes at least one of the following: an evolved base station eNB, a relay station RN, a cell cooperative entity MCE, a gateway GW, a mobility management device MME, an evolved universal terrestrial radio access network EUTRAN, an operation management and maintenance OAM manager.
- FIG. 8 is a structural block diagram of a device for indicating a bit number according to the related art. As shown in FIG. 8, the device is applied to a system.
- the bit number indicating device 38 includes at least a transmitting end UE 82 and a network side entity 84. The device will be described below.
- the transmitting end UE 82 and the network side entity 84 are arranged to indicate the bit number k of the effective indicating bit of the physical side link shared channel PSSCH subframe indicating bit bitmap sequence, wherein k includes one or more values, 1 ⁇ k ⁇ N, N is the bit length of the bitmap sequence.
- the sending end UE and the network side entity indicating k include: the network side entity and the sending end UE indicate k through high layer signaling and/or physical layer signaling.
- the transmitting end UE and the network side entity indicate at least one of the following manners through the high layer signaling and the physical layer signaling: the network side entity indicates k through the system information block SIB, and the UE indicates k through the D2D communication broadcast message; The side entity indicates k through the SIB, and the UE indicates the k by the side link control message SCI between the transmitting terminal and the receiving terminal of the D2D communication; the network side entity controls the RRC message indication k through the system radio resource, and the UE communicates through the D2D
- the broadcast message indicates k; the network side entity indicates k through the RRC message, and the UE indicates k through the side link control message SCI; the network side entity indicates k through the side link resource scheduling control signaling, and the UE broadcasts the message through the D2D communication. Instructing k; the network side entity indicates k by the side link resource scheduling control signaling, and the UE indicates k by the side link control message SCI.
- the broadcast message is carried on the physical side link broadcast channel PSBCH resource, indicating one or more k values; the transmitting terminal and the receiving terminal in the UE communicating through D2D
- a k value is indicated by n1 bits
- the RRC message is a D2D dedicated configuration indication message D2D reconfiguration message indicating one or more k values; in the case where the network side entity indicates k in the side link resource scheduling control signaling, the side link
- the resource scheduling control signaling is a downlink control information DCI format, where n bits are used to indicate one or more k values, n is equal to 1 or 2 or 3; in case the network side entity indicates k by DCI, the network side entity is Indicator bit corresponding to TRP
- the time domain resource pattern TRP indicates a bitmap pattern through a 7-bit index, each TRP index uniquely corresponds to a bitmap pattern, and the TRP index indicates all or part of the bitmap pattern corresponding to one or more k values.
- the TRP index when the time domain resource pattern TRP index indicates all or part of the bitmap corresponding to the plurality of k values, the TRP index sequentially indicates all or part of the bitmaps corresponding to different k values according to the plurality of k values.
- 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 OAM manager. .
- the TRP indicates that the overhead is limited.
- the embodiment of the present invention further provides a data resource configuration method and device, and the physical layer and/or upper layer control signaling is provided. Indicates the effective indicator digits k in the TRP bitmap sequence, provides an efficient, flexible, and adaptable data resource configuration indication, and provides resource configuration that meets the requirements of the D2D communication service, thereby improving configuration flexibility of D2D data resources and improving 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 Equipment (Mobility) Management Entity (referred to as MME), Evolved Universal Terrestrial Radio Access Network (EUTRAN), Operation Administration and Maintenance (OAM), and eNB
- MCE Multi-cell/multicast Coordination Entity
- MME Mobility Management Equipment
- EUTRAN Evolved Universal Terrestrial Radio Access Network
- OAM Operation Administration and Maintenance
- the system uplink subframe is used as a physical side link shared channel (PSSCH) subframe
- the D2D transmitting UE with D2D data to be transmitted can obtain the PSSCH subframe configuration from the eNB.
- a Time Resource Pattern (TRP for short) indicates the PSSCH subframe used.
- the eNB uses the D2D resource scheduling indication dedicated control information format DCI format 5 to indicate the TRP to the transmitting end UE, and the transmitting end UE indicates the TRP in the side link (ie, D2D link) control information (Sidelink Control Information, SCI for short).
- D2D resource scheduling indication dedicated control information format DCI format 5 to indicate the TRP to the transmitting end UE, and the transmitting end UE indicates the TRP in the side link (ie, D2D link) control information (Sidelink Control Information, SCI for short).
- the TRP includes 7-bit indication information, and each TRP index TRP index corresponds to a unique bitmap pattern bitmap.
- the corresponding subframe whose bit is identified as "1" is indicated as a PSSCH subframe, and the bitmap pattern is cyclically repeated in the D2D resource period, and the subframe configuration indication for the entire period is reached.
- the value of the valid indication bit number k may be indicated by the eNB and/or the transmitting end UE through high layer signaling and/or physical layer signaling configuration (the same method as determining the k value described above).
- the indicated k includes one or more specific values, wherein the method indicating the k value may include at least the following methods:
- SIB System Information Block
- the eNB indicates the effective indication bit number k of the bitmap pattern in the TRP in the D2D communication in the cell through the system information block SIB message (also referred to as the system broadcast message), and the k value indicated in the SIB is the cell level configuration parameter, that is, the cell All the D2D UEs are uniformly valid, or the SIBs can be configured according to different D2D UE group groups.
- the k value of the configuration indication can be uniformly valid for the UEs belonging to the corresponding D2D group.
- the configured k value may include one or more specific values, 1 ⁇ k ⁇ N.
- the eNB indicates k by a system radio resource control (Radio Resource Control, RRC for short) message:
- RRC Radio Resource Control
- the eNB indicates the effective indication bit number k of the bitmap pattern in the TRP by using the RRC message, and the RRC message is the UE level configuration indication information, and the k value configuration indication may be independently performed for each UE, and the indicated k value may only receive the RRC message.
- the sender UE is valid.
- the RRC message for configuring the indication k value may also be a D2D communication dedicated configuration indication message D2DReconfiguration.
- the configured k value may include one or more specific values, 1 ⁇ k ⁇ N.
- the eNB indicates k by a dedicated indication bit in the D2D dedicated downlink control information (Downlink Control Information, DCI for short):
- the eNB indicates the effective indication digits k of the bitmap pattern in the TRP through the D2D dedicated DCI, and the configured k value may include one or more specific values, 1 ⁇ k ⁇ N.
- a dedicated indication bit is defined in the DCI for indicating a k value
- the transmitting UE indicates k by using a D2D broadcast message:
- the transmitting end UE indicates the effective indication digits k of the bitmap pattern in the TRP in the D2D broadcast message, and the configured k value may include one or more specific values, 1 ⁇ k ⁇ N, and the D2D broadcast message is carried on the physical edge link.
- the receiving end UE can obtain the k value configuration used by the transmitting end UE by receiving the PSBCH.
- PSBCH Physical Sidelink Broadcast Channel
- the sender UE in the side link control information indicates k:
- the transmitting end UE controls the information SCI to indicate the effective indication digits k of the bitmap pattern in the TRP through the edge link (ie, the link between the D2D UEs), and the configured k value may include one or more specific values, 1 ⁇ k ⁇ N.
- the eNB or the transmitting UE indicates the k value through the n1 bit in the TRP 7 bit overhead:
- the eNB indicates the k value through the D2D dedicated DCI, or the transmitting UE indicates the k value through the SCI, and uses the 7 bit TRP in the DCI or SCI to indicate that the n1 bit in the overhead indicates the unique k value, and the n2 bit indicates the bitmap pattern at the k value.
- N1 1 or 2 or 3
- n1 + n2 7.
- the eNB indicates the k value through the SIB, and the transmitting end UE indicates the k value through the PSBCH:
- the eNB indicates a k value configuration to all D2D UEs in the cell through the SIB message, and the configured k value may include one or more specific values, 1 ⁇ k ⁇ N.
- the transmitting end UE may forward the configuration of the eNB to the K2 on the PSBCH resource, so that the D2D UEs outside the cell coverage can obtain the configuration information, maintain the parameter configuration consistent with the D2D UE in the cell, coordinately control the D2D resources, and avoid resource conflicts.
- the signalling process is as shown in FIG. 10, wherein FIG. 10 is a signaling flowchart of the network side configuring the k value by the SIB message and forwarding the UE by the PSBCH according to the embodiment of the present invention.
- the eNB indicates the k value through the SIB, and the transmitting end UE indicates the k value through the TRP:
- the eNB indicates a k value configuration to all D2D UEs in the cell through the SIB message, and the configured k value may include one or more specific values, 1 ⁇ k ⁇ N.
- the transmitting end UE further indicates a value of k in the TRP indication bit in the SCI, and the specified specific k value belongs to one of a plurality of k values configured by the eNB, so that one or more k values are configured by the eNB, and the transmitting end UE is selected from the UE.
- Selecting a secondary configuration method for k-values achieves the role of semi-static and dynamic adjustment of k-value configuration, so that the k-valued TRP bitmap pattern has a higher configuration flexibility, can adapt to business needs and network requirements, and achieve sufficient Use network resources and improve resource utilization.
- the eNB indicates the k value through the RRC, and the transmitting end UE indicates the k value through the PSBCH:
- the eNB indicates the k value configuration to the sending end UE through the RRC message, and the configured k value may include one or more specific values, 1 ⁇ k ⁇ N.
- the transmitting end UE further forwards the configuration of the eNB to the k on the PSBCH resource, so that the receiving end D2D UE can obtain the configuration information, maintain the bitmap pattern indication relationship with the transmitting end UE, and achieve the semi-static adjustment k value configuration function.
- the k-value-based TRP bitmap pattern has a higher configuration flexibility, can adapt to service requirements and network requirements, and fully utilizes network resources and improves resource utilization.
- the signaling process is shown in FIG. 11 , wherein FIG. 11 It is a signaling flowchart of the network side configuring the k value through the RRC message according to the embodiment of the present invention, and the sending end UE forwards through the PSBCH.
- the eNB indicates the k value through the RRC, and the transmitting end UE indicates the k value through the SCI:
- the eNB indicates the k value configuration to the sending end UE through the RRC message, and the configured k value includes one or more specific values, 1 ⁇ k ⁇ N.
- the transmitting UE further indicates a value of k through a dedicated indication overhead in the SCI, and the specific k value indicated belongs to one of a plurality of k values configured by the eNB, so that one or more k values are configured by the eNB, and the transmitting UE is configured by the UE.
- the signalling process is as shown in FIG. 12, wherein the network side configures the k value through the RRC message according to the embodiment of the present invention, and the sending end UE indicates the k value by using the SCI. Signaling flow chart.
- the eNB indicates the k value through the DCI, and the transmitting end UE indicates the k value through the TRP:
- the eNB configures a 7-bit TRP indication to the transmitting UE by using D2D DCI signaling, where n1bit indicates a unique k value, and n2bit indicates a bitmap pattern at the k value, and the transmitting UE also uses the TRP to indicate a unique k value in the SCI, and The pattern index corresponding to this k value.
- the eNB can flexibly dynamically configure the k value through the DCI, and achieve the function of dynamically adjusting the k value configuration, so that the k-value based bitmap pattern has a higher configuration flexibility, can adapt to service requirements and network requirements, and fully utilize network resources.
- the signaling process is as shown in FIG. 13 .
- the signaling process is as shown in FIG. 13 , wherein FIG. 13 is a signal that the network side configures the k value through physical layer signaling according to the embodiment of the present invention, and the sending end UE indicates the k value by using the TRP.
- the 7-bit TRP index indicated by the eNB in the DCI or the transmitting UE in the SCI respectively corresponds to all or part of the bitmap pattern corresponding to the indicated plurality of k values, and the TRP index is in the order of k values.
- each TRP index uniquely indicates a bitmap pattern.
- Embodiment 1 TRP index and corresponding bitmap pattern
- Embodiment 2 The eNB configures the k value by using the RRC information, and the transmitting end UE indicates the k value by using the PSBCH.
- the value sequence sequentially takes the first 128 patterns to form a correspondence relationship.
- Table 2 is a correspondence table between the TRP index and the bitmap pattern.
- the transmitting end UE forwards the k value configuration indicated by the eNB on the PSBCH channel resource, and the receiving end UE obtains the k configuration by receiving the PSBCH, and according to the same rule, can determine the correspondence between the TRP index and the bitmap pattern.
- D2D data D2D data.
- the third embodiment indicates the k value in the DCI TRP, and the transmitting UE indicates the k value in the SCI TRP.
- the transmitting end UE obtains the PSSCH subframe configured by the eNB according to the bitmap pattern.
- the transmitting end UE indicates that the TRP is “1000101” in the SCI, and the receiving end UE obtains the corresponding PSSCH subframe indication according to the foregoing rule, and receives the D2D data sent by the sending end UE in the PSSCH subframe.
- Embodiment 4 The transmitting UE selects k, notifies in the PSBCH, and indicates a specific used value in the SCI with a dedicated indicator bit.
- the transmitting UE freely selects resources for D2D data transmission in the predefined resource pool of the system, and the transmitting UE selects a k value according to its own service requirement and a predefined resource pool configuration, and indicates one or more on the PSBCH channel resource. k value.
- the transmitting end UE indicates the actual used k value in the SCI with a 1 or 2 or 3 bit dedicated indication overhead, and indicates a bitmap pattern in the TRP, and the 7 bit overhead of the TRP is corresponding to different k value indications. Indicates the relationship between different TRP indexes and bitmap patterns. Since the TRP index has a 7-bit overhead, all bitmap patterns can be indicated for any k value, as shown in Table 10 to Table 12, where Tables 10 to 12 are TRP index and bitmap pattern indication relationship tables.
- the receiving UE receives the PSSCH subframe and the SCI, and obtains the corresponding PSSCH subframe indication according to the foregoing rule, and receives the D2D data sent by the transmitting UE in the PSSCH subframe.
- 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 the preferred embodiments solve the problem of low flexibility of the D2D PSSCH subframe configuration in the related art, thereby improving the flexibility of D2D PSSCH subframe configuration and improving resource utilization. effect.
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Abstract
本发明提供了一种比特位数指示方法及装置,其中,该方法包括发送端UE和/或网络侧实体指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k的方法,其中,k包括一个或多个数值,1≤k≤N,N为bitmap序列的比特长度,解决了相关技术中存在的D2D PSSCH子帧配置的灵活性低的问题,进而达到了提高D2D PSSCH子帧配置的灵活性,提高资源利用率的效果。
Description
本发明涉及通信领域,具体而言,涉及一种比特位数指示方法及装置。
在设备到设备(Device-to-Device,简称为D2D)通信系统中,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系统通信模式的特征,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,能够减少系统资源占用,增加蜂窝通信系统频谱效率,降低终端发射功耗,并在很大程度上节省网络运营成本。
在传统的蜂窝通信系统中,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)系统中,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个时隙slot,如图2所示,该图2是相关技术中的LTE系统帧结构框图。
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)上的传输块(Transport Block,简称为TB),获得eNB传输的数据,如图3所示,图3是相关技术中的LTE系统资源调度指示图。图4是相关技术中的D2D通信资源调度指示图,在D2D通信系统中,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)进行D2D数据的传输,并在D2D链路(也称为边链路Sidelink)
控制信息(Sidelink Control Information,简称为SCI)信令中指示所使用的PSSCH子帧及相关的控制信息,其中,以时域资源图样(Time Resource Pattern,简称为TRP)信息指示对应于PSSCH子帧配置的位图bitmap序列,所指示的bitmap序列中标志为“1”的位bit即指示相应子帧为PSSCH子帧,bitmap序列在周期内循环映射从而实现对周期内PSSCH子帧的配置指示,由于固定的bitmap序列长度和有限的TRP指示开销,限制了D2D PSSCH子帧配置的灵活性。
针对相关技术中存在的D2D PSSCH子帧配置的灵活性低的问题,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比特位数指示方法及装置,以至少解决相关技术中存在的D2D PSSCH子帧配置的灵活性低的问题。
根据本发明的一个方面,提供了一种比特位数指示方法,包括:发送端UE和/或网络侧实体指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为所述bitmap序列的比特长度。
在本发明实施例中,所述发送端UE和/或所述网络侧实体指示所述k包括:所述网络侧实体和/或所述发送端UE通过高层信令和/或物理层信令指示所述k。
在本发明实施例中,所述发送端UE和/或所述网络侧实体通过高层信令和/或物理层信令指示所述k包括以下方式至少之一:所述UE通过设备到设备D2D通信的广播消息指示所述k;所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示所述k;所述网络侧实体通过系统信息块SIB指示所述k;所述网络侧实体通过系统无线资源控制RRC消息指示所述k;所述网络侧实体通过边链路资源调度控制信令指示所述k。
在本发明实施例中,所述发送端UE和/或所述网络侧实体通过高层信令和/或物理层信令指示所述k还包括以下至少之一:在所述UE通过D2D通信的广播消息指示所述k的情况下,所述广播消息承载在物理边链路广播信道PSBCH资源上,指示一个或多个k值;在所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示所述k的情况下,在所述SCI中利用n bit指示一个或多个k值,所述n=1或2或3;在所述UE通过SCI指示所述k的情况下,在时域资源图样TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,
每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7;在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对小区内所有D2D UE有效;在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对指定的D2D群组内UE有效;在所述网络侧实体通过RRC消息指示所述k的情况下,所述RRC消息为D2D专用配置指示消息D2D重配置消息,指示一个或多个k值;在所述网络侧实体在边链路资源调度控制信令中指示所述k的情况下,所述边链路资源调度控制信令为下行控制信息DCI格式,其中包含n比特用于指示一个或多个k值,n等于1或2或3;在所述网络侧实体通过DCI指示所述k的情况下,所述网络侧实体在所述TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
在本发明实施例中,时域资源图样TRP通过7比特索引指示位图图样,每个所述TRP索引唯一对应于一个位图图样,所述TRP索引指示所述一个或多个k值对应的全部或部分位图图样。
在本发明实施例中,时域资源图样TRP索引指示所述多个k值对应的全部或部分位图时,所述TRP索引按所述多个k值依次指示不同k值对应的全部或部分位图。
在本发明实施例中,所述网络侧实体包括以下至少之一: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OAM管理器。
根据本发明的另一方面,提供了一种比特位数指示装置,所述装置应用于发送端UE侧,包括:第一指示模块,设置为指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为所述bitmap序列的比特长度。
在本发明实施例中,所述第一指示模块包括:所述UE通过高层信令和/或物理层信令指示所述k。
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k:所述UE通过设备到设备D2D通信的广播消息指示所述k;所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示所述k。
在本发明实施例中,所述第一指示模块还包括以下至少之一:在所述UE通过D2D通信的广播消息指示所述k的情况下,所述广播消息承载在物理边链路广播信道PSBCH资源上,指示一个或多个k值;在所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示所述k的情况下,在所述SCI中利用n bit指示一个或多个k值,所述n=1或2或3;在所述UE通过SCI指示所述k的情况下,在时域资源图样TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
在本发明实施例中,时域资源图样TRP通过7比特索引指示位图图样,每个所述TRP索引唯一对应于一个位图图样,所述TRP索引指示所述一个或多个k值对应的全部或部分位图图样。
在本发明实施例中,时域资源图样TRP索引指示所述多个k值对应的全部或部分位图时,所述TRP索引按所述多个k值依次指示不同k值对应的全部或部分位图。
根据本发明的再一方面,提供了一种比特位数指示装置,该装置应用于网络实体侧,包括:第二指示模块,设置为指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为所述bitmap序列的比特长度。
在本发明实施例中,所述第二指示模块包括:所述网络侧实体通过高层信令和/或物理层信令指示所述k。
在本发明实施例中,所述第二指示模块通过以下方式至少之一指示所述k:所述网络侧实体通过系统信息块SIB指示所述k;所述网络侧实体通过系统无线资源控制RRC消息指示所述k;所述网络侧实体通过边链路资源调度控制信令指示所述k。
在本发明实施例中,所述第二指示模块还包括以下至少之一:在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对小区内所有D2D UE有效;在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对指定的D2D群组内UE有效;在所述网络侧实体通过RRC消息指示所述k的情况下,所述RRC消息为D2D专用配置指示消息D2D重配置消息,指示一个或多个k值;在所述网络侧实体在边链路资源调度控制信令中指示所述k的情况下,所述边链路资源调度控制信令为下行控制信息DCI格式,其中包含n比特用于指示一个或多个k值,n等于1或2或3;在所述网络侧实体通过DCI指示所述k的情况下,所述网络侧实体在所述TRP对应的指示比特中以n1比特指示一个k值,以n2比特作
为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
在本发明实施例中,时域资源图样TRP通过7比特索引指示位图图样,每个所述TRP索引唯一对应于一个位图图样,所述TRP索引指示所述一个或多个k值对应的全部或部分位图图样。
在本发明实施例中,时域资源图样TRP索引指示所述多个k值对应的全部或部分位图时,所述TRP索引按所述多个k值依次指示不同k值对应的全部或部分位图。
在本发明实施例中,所述网络侧实体包括以下至少之一: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OAM管理器。
根据本发明的又一方面,提供了一种比特位数指示装置,该装置应用于系统中,所述系统包括发送端UE和网络侧实体,其中,发送端UE和网络侧实体用于指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为所述bitmap序列的比特长度。
在本发明实施例中,所述发送端UE和所述网络侧实体指示所述k包括:所述网络侧实体和所述发送端UE通过高层信令和/或物理层信令指示所述k。
在本发明实施例中,所述发送端UE和所述网络侧实体通过高层信令和物理层信令指示所述k包括以下方式至少之一:所述网络侧实体通过系统信息块SIB指示所述k,其中,所述UE通过D2D通信广播消息指示所述k;所述网络侧实体通过SIB指示所述k,并且,所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示所述k;所述网络侧实体通过系统无线资源控制RRC消息指示所述k,并且,所述UE通过D2D通信广播消息指示所述k;所述网络侧实体通过RRC消息指示所述k,并且,所述UE通过边链路控制消息SCI指示所述k;所述网络侧实体通过边链路资源调度控制信令指示所述k,并且,所述UE通过D2D通信广播消息指示所述k;所述网络侧实体通过边链路资源调度控制信令指示所述k,并且,所述UE通过边链路控制消息SCI指示所述k。
在本发明实施例中,在所述UE通过D2D通信广播消息指示所述k的情况下,所述广播消息承载在物理边链路广播信道PSBCH资源上,指示一个或多个k值;在所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI的方式,指示所述k的情况下,在所述SCI中利用n bit指示一个或多个k值,所述n=1或2或3;
在所述UE通过SCI指示所述k的情况下,在时域资源图样TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7;在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对小区内所有D2D UE有效;在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对指定的D2D群组内UE有效;在所述网络侧实体通过RRC消息指示所述k的情况下,所述RRC消息为D2D专用配置指示消息D2D重配置消息,指示一个或多个k值;在所述网络侧实体在边链路资源调度控制信令中指示所述k的情况下,所述边链路资源调度控制信令为下行控制信息格式DCI格式,其中包含n比特用于指示一个或多个k值,n等于1或2或3;在所述网络侧实体通过DCI指示所述k的情况下,所述网络侧实体在所述TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
在本发明实施例中,时域资源图样TRP通过7比特索引指示位图图样,每个所述TRP索引唯一对应于一个位图图样,所述TRP索引指示所述一个或多个k值对应的全部或部分位图图样。
在本发明实施例中,时域资源图样TRP索引指示所述多个k值对应的全部或部分位图时,所述TRP索引按所述多个k值依次指示不同k值对应的全部或部分位图。
在本发明实施例中,所述网络侧实体包括以下至少之一: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OAM管理器。
通过本发明实施例,采用发送端UE和/或网络侧实体指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为所述bitmap序列的比特长度,解决了相关技术中存在的D2D PSSCH子帧配置的灵活性低的问题,进而达到了提高D2D PSSCH子帧配置的灵活性,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实施例的进一步理解,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系统帧结构框图;
图3是相关技术中的LTE系统资源调度指示图;
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比特位数指示方法的流程图;
图6是根据本发明实施例的比特位数指示装置一的结构框图;
图7是根据本发明实施例的比特位数指示装置二的结构框图;
图8是根据本发明实施例的比特位数指示装置三的结构框图;
图9是相关技术中的D2D通信中通过TRP bitmap pattern指示PSSCH子帧的示意图;
图10是根据本发明实施例的网络侧通过SIB消息配置k值,发送端UE通过PSBCH转发的信令流程图;
图11是根据本发明实施例的网络侧通过RRC消息配置k值,发送端UE通过PSBCH转发的信令流程图;
图12是根据本发明实施例的网络侧通过RRC消息配置k值,发送端UE通过SCI指示k值的信令流程图;
图13是根据本发明实施例的网络侧通过物理层信令配置k值,发送端UE通过TRP指示k值的信令流程图。
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。
在本实施例中提供了一种比特位数指示方法,图5是根据本发明实施例的比特位数指示方法的流程图,如图5所示,该流程包括如下步骤:
步骤S502,发送端UE和/或网络侧实体指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为bitmap序列的比特长度。
通过上述步骤,采用由发送端UE和/或网络侧实体指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k的方法,其中,k包括一个或多个数值,1≤k≤N,N为bitmap序列的比特长度,解决了相关技术中存在的D2D PSSCH子帧配置的灵活性低的问题,进而达到了提高D2D PSSCH子帧配置的灵活性,提高资源利用率的效果。
在一个优选的实施例中,发送端UE和/或网络侧实体指示k包括:发送端UE和/或网络侧实体通过高层信令和/或物理层信令指示k。
其中,发送端UE和/或网络侧实体通过高层信令和/或物理层信令指示k可以包括以下方式至少之一:UE通过设备到设备D2D通信的广播消息指示k;UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示k;网络侧实体通过系统信息块SIB指示k;网络侧实体通过系统无线资源控制RRC消息指示k;网络侧实体通过边链路资源调度控制信令指示k。
其中,发送端UE和/或网络侧实体通过高层信令和/或物理层信令指示k还包括以下至少之一:在发送端UE通过D2D通信的广播消息指示k的情况下,广播消息承载在物理边链路广播信道PSBCH资源上,指示一个或多个k值;在UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示k的情况下,在SCI中利用n bit指示一个或多个k值,n=1或2或3;在UE通过SCI指示k的情况下,在时域资源图样TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,该位图索引指示一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7;在网络侧实体通过系统信息块SIB指示k的情况下,所指示的一个或多个k值对小区内所有D2D UE有效;在网络侧实体通过系统信息块SIB指示k的情况下,所指示的一个或多个k值对指定的
D2D群组内UE有效;在网络侧实体通过RRC消息指示k的情况下,RRC消息为D2D专用配置指示消息D2D重配置消息,指示一个或多个k值;在网络侧实体在边链路资源调度控制信令中指示k的情况下,边链路资源调度控制信令为下行控制信息DCI格式,其中包含n比特用于指示一个或多个k值,n等于1或2或3;在网络侧实体通过DCI指示k的情况下,网络侧实体在TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,位图索引指示一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
其中,时域资源图样TRP通过7比特索引指示位图图样,每个TRP索引唯一对应于一个位图图样,该TRP索引指示一个或多个k值对应的全部或部分位图图样。
其中,时域资源图样TRP索引指示多个k值对应的全部或部分位图时,TRP索引按多个k值依次指示不同k值对应的全部或部分位图。
其中,该网络侧实体可以包括以下至少之一: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OAM管理器。
在本实施例中还提供了一种比特位数指示装置,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比特位数指示装置一的结构框图,如图6所示,该装置应用于发送端UE侧,该比特位数指示装置一60包括第一指示模块62,下面对该第一指示模块62进行说明。
第一指示模块62,设置为指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为bitmap序列的比特长度。
其中,该第一指示模块62包括:UE通过高层信令和/或物理层信令指示k。
该第一指示模块62通过以下方式至少之一指示k:UE通过设备到设备D2D通信的广播消息指示k;UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示k。
其中,该第一指示模块62还包括以下至少之一:在UE通过D2D通信的广播消息指示k的情况下,广播消息承载在物理边链路广播信道PSBCH资源上,指示一个或多个k值;在UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示k的情况下,在SCI中利用n bit指示一个或多个k值,n=1或2或3;在UE通过SCI指示k的情况下,在时域资源图样TRP对应的指示比k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,位图索引指示一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
其中,时域资源图样TRP通过7比特索引指示位图图样,每个TRP索引唯一对应于一个位图图样,TRP索引指示一个或多个k值对应的全部或部分位图图样。
其中,时域资源图样TRP索引指示多个k值对应的全部或部分位图时,TRP索引按多个k值依次指示不同k值对应的全部或部分位图。
图7是根据本发明实施例的比特位数指示装置二的结构框图,如图7所示,该装置应用于网络实体侧,该比特位数指示装置二70包括第二指示模块72,下面对该第二指示模块72进行说明。
第二指示模块72,设置为指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为bitmap序列的比特长度。
其中,该第二指示模块72包括:网络侧实体通过高层信令和/或物理层信令指示k。
第二指示模块72通过以下方式至少之一指示k:网络侧实体通过系统信息块SIB指示k;网络侧实体通过系统无线资源控制RRC消息指示k;网络侧实体通过边链路资源调度控制信令指示k。
第二指示模块72还包括以下至少之一:在网络侧实体通过系统信息块SIB指示k的情况下,所指示的一个或多个k值对小区内所有D2D UE有效;在网络侧实体通过系统信息块SIB指示k的情况下,所指示的一个或多个k值对指定的D2D群组内UE有效;在网络侧实体通过RRC消息指示k的情况下,RRC消息为D2D专用配置指示消息D2D重配置消息,指示一个或多个k值;在网络侧实体在边链路资源调度控制信令中指示k的情况下,边链路资源调度控制信令为控制信息格式DCI格式,其中包含n比特用于指示一个或多个k值,n等于1或2或3;在网络侧实体通过DCI指示k的情况下,网络侧实体在TRP对应的指示比特中以n1比特指示一个k值,以n2比特
作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,位图索引指示一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
其中,时域资源图样TRP通过7比特索引指示位图图样,每个TRP索引唯一对应于一个位图图样,TRP索引指示一个或多个k值对应的全部或部分位图图样。
其中,时域资源图样TRP索引指示多个k值对应的全部或部分位图时,TRP索引按多个k值依次指示不同k值对应的全部或部分位图。
网络侧实体包括以下至少之一: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OAM管理器。
图8是根据相关技术中的比特位数指示装置三的结构框图,如图8所示,该装置应用于系统中,该比特位数指示装置三80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。
发送端UE82和网络侧实体84设置为指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为bitmap序列的比特长度。
其中,发送端UE和网络侧实体指示k包括:网络侧实体和发送端UE通过高层信令和/或物理层信令指示k。
其中,发送端UE和网络侧实体通过高层信令和物理层信令指示k包括以下方式至少之一:网络侧实体通过系统信息块SIB指示k,并且,UE通过D2D通信广播消息指示k;网络侧实体通过SIB指示k,并且,UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示k;网络侧实体通过系统无线资源控制RRC消息指示k,并且,UE通过D2D通信广播消息指示k;网络侧实体通过RRC消息指示k,并且,UE通过边链路控制消息SCI指示k;网络侧实体通过边链路资源调度控制信令指示k,并且,UE通过D2D通信广播消息指示k;网络侧实体通过边链路资源调度控制信令指示k,并且,UE通过边链路控制消息SCI指示k。
其中,在发送端UE通过D2D通信广播消息指示k的情况下,广播消息承载在物理边链路广播信道PSBCH资源上,指示一个或多个k值;在UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI的方式,指示k的情况下,在SCI中利用n bit指示一个或多个k值,n=1或2或3;在UE通过SCI指示k的情况下,在时
域资源图样TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,位图索引指示一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7;在网络侧实体通过系统信息块SIB指示k的情况下,所指示的一个或多个k值对小区内所有D2D UE有效;在网络侧实体通过系统信息块SIB指示k的情况下,所指示的一个或多个k值对指定的D2D群组内UE有效;在网络侧实体通过RRC消息指示k的情况下,RRC消息为D2D专用配置指示消息D2D重配置消息,指示一个或多个k值;在网络侧实体在边链路资源调度控制信令中指示k的情况下,边链路资源调度控制信令为下行控制信息DCI格式,其中包含n比特用于指示一个或多个k值,n等于1或2或3;在网络侧实体通过DCI指示k的情况下,网络侧实体在TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,位图索引指示一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
其中,时域资源图样TRP通过7比特索引指示位图图样,每个TRP索引唯一对应于一个位图图样,TRP索引指示一个或多个k值对应的全部或部分位图图样。
其中,时域资源图样TRP索引指示多个k值对应的全部或部分位图时,TRP索引按多个k值依次指示不同k值对应的全部或部分位图。
其中,网络侧实体包括以下至少之一: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OAM管理器。
为了解决相关技术中存在的TRP bitmap序列灵活性受限,TRP指示开销有限的问题,本发明实施例中还提供了一种数据资源的配置方法及设备,通过物理层和/或高层控制信令指示TRP bitmap序列中的有效指示位数k,提供高效、灵活、适应性强的数据资源配置指示,提供满足D2D通信业务需求的资源配置,从而提高D2D数据资源的配置灵活性,提高资源利用率。
为使本发明实施例的目的、技术方案和优点更加清楚明白,下文中将继续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通信系统中,使用系统上行子帧作为物理边链路共享信道(Physical Sidelink Shared Channel,简称为PSSCH)子帧,有D2D数据待发送的D2D发送端UE可以从eNB获得PSSCH子帧配置,或者在系统预定义的资源池中选择一定的子帧作为PSSCH子帧,eNB向发送端UE配置指示PSSCH子帧,或者发送端UE向接收端UE指示所使用的PSSCH子帧,都是采用时域资源图样(Time Resource Pattern,简称为TRP)指示所使用的PSSCH子帧。eNB使用D2D资源调度指示专用控制信息格式DCI format 5向发送端UE指示TRP,发送端UE在边链路(即D2D链路)控制信息(Sidelink Control Information,简称为SCI)中指示TRP。
图9是根据本发明实施例的D2D通信中通过TRP bitmap pattern指示PSSCH子帧的示意图,如图9所示,TRP包含7bit指示信息,每一个TRP索引TRP index对应于唯一的一个位图图样bitmap pattern,bitmap pattern的长度为N,N=6,7,8,其中有效指示位数k,即bitmap pattern中标识为“1”的位数,例如“11110000”即为一个N=8,k=4的bitmap pattern。根据TRP所指示的bitmap pattern,bit位标识为“1”的对应子帧即指示为PSSCH子帧,bitmap pattern在D2D资源周期内循环重复,达到对整个周期内的子帧配置指示。
TRP所指示的bitmap pattern中,有效指示位数k的取值可以由eNB和/或发送端UE通过高层信令和/或物理层信令配置指示(同上述的确定该k值的方法),所指示的k包括一个或多个具体数值,其中,指示该k值的方法可以至少包括如下方法:
1、eNB通过系统信息块(System Information Block,简称为SIB)消息指示k:
eNB通过系统信息块SIB消息(也称为系统广播消息)指示小区内D2D通信中TRP中bitmap pattern的有效指示位数k,此时在SIB中指示的k值为小区级配置参数,即对小区内所有D2D UE都是统一有效的,或者SIB也可以按照不同的D2D UE群组group进行k值配置,则配置指示的k值可以对属于相应D2D group的UE都是统一有效的。所配置的k值可以包括一个或多个具体取值,1≤k≤N。
2、eNB通过系统无线资源控制(Radio Resource Control,简称为RRC)消息指示k:
eNB通过RRC消息指示TRP中bitmap pattern的有效指示位数k,RRC消息为UE级配置指示信息,可以独立为每个UE进行k值的配置指示,所指示的k值可以仅对接收此RRC消息的发送端UE有效。用于配置指示k值的RRC消息也可以为D2D通信专用配置指示消息D2DReconfiguration。所配置的k值可以包括一个或多个具体取值,1≤k≤N。
3、eNB在D2D专用下行控制信息(Downlink Control Information,简称为DCI)中通过专用指示bit指示k:
eNB通过D2D专用的DCI指示TRP中bitmap pattern的有效指示位数k,所配置的k值可以包括一个或多个具体取值,1≤k≤N。其中,在DCI中定义有专用的指示bit用于指示k值,此专用开销包含n bit,指示一个k值或一组k值,n=1或2或3。
4、发送端UE通过D2D广播消息指示k:
发送端UE在D2D广播消息中指示TRP中bitmap pattern的有效指示位数k,所配置的k值可以包括一个或多个具体取值,1≤k≤N,D2D广播消息承载在物理边链路广播信道(Physical Sidelink Broadcast Channel,简称为PSBCH)资源上,使接收端UE能够通过接收PSBCH获得关于发射端UE使用的k值配置。
5、发送端UE在边链路控制信息(Sidelink Control Information,简称为SCI)指示k:
发送端UE通过边链路(即D2D UE之间的链路)控制信息SCI指示TRP中bitmap pattern的有效指示位数k,所配置的k值可以包括一个或多个具体取值,1≤k≤N。其中,在SCI中定义有专用的指示bit用于指示k值,此专用开销包含n bit,指示一个k值或一组k值,n=1或2或3。
6、eNB或发送端UE通过TRP 7bit开销中的n1bit指示k值:
eNB通过D2D专用的DCI指示k值,或者发送端UE通过SCI指示k值时,使用DCI或SCI中7bit TRP指示开销中的n1bit指示唯一k值,以n2bit指示在此k值下的bitmap pattern,n1=1或2或3,n1+n2=7。
另外,在不冲突的前提下,上述指示k的方法还可以组合使用,例如:
eNB通过SIB指示k值,发送端UE通过PSBCH指示k值:
eNB通过SIB消息向小区内所有D2D UE指示k值配置,所配置的k值可以包括一个或多个具体取值,1≤k≤N。发送端UE可以在PSBCH资源上转发eNB对于k的配置,使小区覆盖范围以外的D2D UE能够获得此配置信息,保持与小区内D2D UE一致的参数配置,达到协调控制D2D资源,避免资源冲突、以及降低信号干扰等作用,其信令流程如图10所示,其中,图10是根据本发明实施例的网络侧通过SIB消息配置k值,发送端UE通过PSBCH转发的信令流程图。
eNB通过SIB指示k值,发送端UE通过TRP指示k值:
eNB通过SIB消息向小区内所有D2D UE指示k值配置,所配置的k值可以包括一个或多个具体取值,1≤k≤N。发送端UE进一步在SCI中的TRP指示bit中指示一个k值,所指示的具体k值属于eNB配置的多个k值其中的一个,这样由eNB配置一个或多个k值,发送端UE从中选择一个k值使用的二级配置方法,达到了半静态及动态调整k值配置的作用,使基于k值的TRP bitmap pattern具体更高的配置灵活性,能够适应业务需求及网络需求,达到充分利用网络资源、提高资源利用率等作用。
eNB通过RRC指示k值,发送端UE通过PSBCH指示k值:
eNB通过RRC消息向发送端UE指示k值配置,所配置的k值可以包括一个或多个具体取值,1≤k≤N。发送端UE进一步在PSBCH资源上转发eNB对于k的配置,使接收端D2D UE能够获得此配置信息,保持与发送端UE统一的bitmap pattern指示关系,达到了半静态调整k值配置的作用,使基于k值的TRP bitmap pattern具体更高的配置灵活性,能够适应业务需求及网络需求,达到充分利用网络资源、提高资源利用率等作用,信令流程如图11所示,其中,该图11是根据本发明实施例的网络侧通过RRC消息配置k值,发送端UE通过PSBCH转发的信令流程图。
eNB通过RRC指示k值,发送端UE通过SCI指示k值:
eNB通过RRC消息向发送端UE指示k值配置,所配置的k值包括一个或多个具体取值,1≤k≤N。发送端UE进一步在SCI中的通过专用指示开销指示一个k值,所指示的具体k值属于eNB配置的多个k值其中的一个,这样由eNB配置一个或多个k值,发送端UE从中选择一个k值使用的二级配置方法,达到了半静态及动态调整k值配置的作用,使基于k值的TRP bitmap pattern具体更高的配置灵活性,能够适应业务需求及网络需求,达到充分利用网络资源、提高资源利用率等作用,信令流程如图12所示,其中,该图12是根据本发明实施例的网络侧通过RRC消息配置k值,发送端UE通过SCI指示k值的信令流程图。
eNB通过DCI指示k值,发送端UE通过TRP指示k值:
eNB通过D2D DCI信令向发送端UE配置7bit TRP指示,其中n1bit指示唯一k值,以n2bit指示在此k值下的bitmap pattern,发送端UE同样采用TRP在SCI中指示唯一的k值,以及对应此k值的pattern index。由eNB通过DCI可以灵活的动态配置k值,达到了动态调整k值配置的作用,使基于k值的bitmap pattern具体更高的配置灵活性,能够适应业务需求及网络需求,达到充分利用网络资源、提高资源利用率等作用,信令流程如图13所示,其中,该图13是根据本发明实施例的网络侧通过物理层信令配置k值,发送端UE通过TRP指示k值的信令流程图。
通过上述方法指示多个k值时,eNB在DCI或发送端UE在SCI中指示的7bit TRP index分别对应于所指示的多个k值对应的全部或部分bitmap pattern,TRP index按照k值的顺序依次对应于相应的bitmap pattern,每个TRP index唯一指示一个bitmap pattern。
下面结合具体实施例对上述指示k值的方法进行说明:
实施例一TRP index及对应指示的bitmap pattern
eNB通过SIB消息配置指示k值,k=[1,2,4,8],且N=8,小区内D2D UE接收到SIB消息后,获得k值配置,并进一步基于所配置的k值,确定TRP index指示与bitmap pattern之间的对应关系,如表1所示,表1为TRP index指示与bitmap pattern之间的对应关系表。其中,TRP index 0至index 7指示k=1对应的bitmap pattern,index 8至index 35指示k=2对应的bitmap pattern,index 36至index 105指示k=4对应的bitmap pattern,index 106指示k=8对应的bitmap pattern。
基于SIB中k值的配置,eNB通过DCI指示发送端UE TRP index=15,则发送端UE根据SIB配置的k值,以及相应的TRP index与bitmap pattern之间的对应关系,获得bitmap pattern为“00010010”,并按照bitmap pattern确定eNB所配置的PSSCH子帧。可选地,发送端UE在SCI中指示TRP index=15,则接收端UE同样基于k值配置,确定TRP index=15对应的bitmap pattern,并在相应的PSSCH子帧上接收发送端UE发送的D2D数据。
表1
实施例二eNB通过RRC信息配置k值,发送端UE通过PSBCH指示k值
eNB通过D2DReconfiguration消息向发送端UE配置指示k值,k=[1,2,3,4],且N=8,发送端UE根据此k值配置,确定TRP index与bitmap pattern之间的对应关系。由于k=[1,2,3,4]所对应的所有bitmap pattern数量为162个,超过了TRP 7bit最大可指示128种pattern的范围,因此在k=[1,2,3,4]时,TRP index只能指示对应k值的部分bitmap pattern,则当k配置为[1,2,3,4],应按照预定义的规则,确定TRP index与bitmap pattern之间的对应表,按照k值顺序依次取前128种pattern形成对应关系,如表2所示,表2为TRP index与bitmap pattern之间的对应表。其中,TRP index 0至index 7指示k=1对应的bitmap pattern,index 8至index 35指示k=2对应的bitmap pattern,index36至index 91指示k=3对应的bitmap pattern,index 92至index 127指示k=4对应的
bitmap pattern,其中k=4时对应的bitmap pattern为部分可用pattern,未包含所有k=4的bitmap pattern。
发送端UE在PSBCH信道资源上,转发eNB指示的k值配置,则接收端UE通过接收PSBCH获得k配置,并根据同样的规则,可以确定TRP index与bitmap pattern之间的对应关系。
eNB通过DCI指示发送端UE TRP index=75,则发送端UE根据k值以及相应的TRP index与bitmap pattern之间的对应关系,获得bitmap pattern为“00110001”,并按照bitmap pattern确定eNB所配置的PSSCH子帧。可选地,发送端UE在SCI中指示TRP index=75,则接收端UE同样基于k值配置,确定TRP index=75对应的bitmap pattern,并在相应的PSSCH子帧上接收发送端UE发送的D2D数据。
表2
实施例三eNB在DCI TRP中指示k值,发送端UE在SCI TRP中指示k值
eNB及发送端UE在TRP的7bit指示开销中,使用n1=3bit指示唯一k值,使用剩余的n2=4bit指示在此k值下对应的bitmap pattern。n1=3,则可以指示最多8种k值,k=[1,2,3,4,5,6,7,8],n2=4,则对应于每个k值,最多可以指示16种bitmap pattern。
TRP bitmap长度N=7,则当k=1,6,7时,所有可用的bitmap pattern数量不大于16种,因此n2bit可以指示k对应的全部bitmap pattern,而当k=2,3,4,5时,每个k值对应的bitmap pattern数量大于16,n2bit只能指示出k对应的部分bitmap pattern,因此需要定义相应的index对应指示的bitmap pattern,从全部可用的bitmap pattern中选择不多于16个,与n2bit所指示的pattern index一一对应,例如采用全部可用bitmap pattern中的前16种与pattern index形成对应关系,如表3至表9所示,表3至表9均为pattern index与bitmap pattern之间的对应表。
eNB在DCI中向发送端UE指示TRP的7bit指示开销为“1000101”,则前3bit指示k=5,后4bit pattern index=5,则根据表7可得,所指示的bitmap pattern为“1110011”。发送端UE按照bitmap pattern获得eNB所配置的PSSCH子帧。可选地,发送端UE在SCI中指示TRP为“1000101”,则接收端UE同样依照上述规则获得相应的PSSCH子帧指示,并在PSSCH子帧上接收发送端UE发送的D2D数据。
表3 k=1
表4 k=2
表5 k=3
表6 k=4
表7 k=5
表8 k=6
表9 k=7
实施例四发送端UE选择k,在PSBCH中通知,并在SCI中以专用指示位指示具体使用的k值
发送端UE在系统预定义的资源池内自由选择资源进行D2D数据传输,发送端UE根据自身的业务需求及预定义的资源池配置,选择k值,并在PSBCH信道资源上指示出一个或多个k值。
在本发明实施例中,发送端UE在SCI中以1或2或3bit专用指示开销指示实际使用的k值,在TRP中指示bitmap pattern,则TRP的7bit开销在不同的k值指示下,对应于不同的TRP index与bitmap pattern指示关系。由于TRP index具有7bit开销,可以对于任意k值,指示出全部的bitmap pattern,如表10至表12所示,其中,表10至12为TRP index与bitmap pattern指示关系表。
发送端UE在PSBCH中指示k=[1,3,5],且N=6,在实际调度指示资源时,发送端UE在SCI中以2bit指示使用可用k值中的第2个取值,即k=3,并且在TRP中指示TRP index为“0001101”,则根据表11可得,所指示的bitmap pattern为“010110”,发送端UE在bitmap pattern指示的PSSCH子帧上传输D2D数据,接收端UE则通过接收PSBCH以及SCI,同样依照上述规则获得相应的PSSCH子帧指示,并在PSSCH子帧上接收发送端UE发送的D2D数据。
表10 k=1
表11 k=3
表12 k=5
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 PSSCH子帧配置的灵活性低的问题,进而达到了提高D2D PSSCH子帧配置的灵活性,提高资源利用率的效果。
Claims (27)
- 一种比特位数指示方法,包括:发送端UE和/或网络侧实体指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为所述bitmap序列的比特长度。
- 根据权利要求1所述的方法,其中,所述发送端UE和/或所述网络侧实体指示所述k包括:所述网络侧实体和/或所述发送端UE通过高层信令和/或物理层信令指示所述k。
- 根据权利要求2所述的方法,其中,所述发送端UE和/或所述网络侧实体通过高层信令和/或物理层信令指示所述k包括以下方式至少之一:所述UE通过设备到设备D2D通信的广播消息指示所述k;所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示所述k;所述网络侧实体通过系统信息块SIB指示所述k;所述网络侧实体通过系统无线资源控制RRC消息指示所述k;所述网络侧实体通过边链路资源调度控制信令指示所述k。
- 根据权利要求3所述的方法,其中,所述发送端UE和/或所述网络侧实体通过高层信令和/或物理层信令指示所述k包括以下至少之一:在所述UE通过D2D通信的广播消息指示所述k的情况下,所述广播消息承载在物理边链路广播信道PSBCH资源上,指示一个或多个k值;在所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示所述k的情况下,在所述SCI中利用n bit指示一个或多个k值,n=1或2或3;在所述UE通过SCI指示所述k的情况下,在时域资源图样TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7;在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对小区内所有D2D UE有效;在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对指定的D2D群组内UE有效;在所述网络侧实体通过RRC消息指示所述k的情况下,所述RRC消息为D2D专用配置指示消息D2D重配置消息,指示一个或多个k值;在所述网络侧实体在边链路资源调度控制信令中指示所述k的情况下,所述边链路资源调度控制信令为下行控制信息DCI格式,其中包含n比特用于指示一个或多个k值,n等于1或2或3;在所述网络侧实体通过DCI指示所述k的情况下,所述网络侧实体在所述TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
- 根据权利要求1至4中任一项所述的方法,其中,时域资源图样TRP通过7比特索引指示位图图样,每个所述TRP索引唯一对应于一个位图图样,所述TRP索引指示所述一个或多个k值对应的全部或部分位图图样。
- 根据权利要求1至4中任一项所述的方法,其中,时域资源图样TRP索引指示所述多个k值对应的全部或部分位图时,所述TRP索引按所述多个k值依次指示不同k值对应的全部或部分位图。
- 根据权利要求1至4中任一项所述的方法,其中,所述网络侧实体包括以下至少之一: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OAM管理器。
- 一种比特位数指示装置,应用于发送端UE侧,包括:第一指示模块,设置为指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为所述bitmap序列的比特长度。
- 根据权利要求8所述的装置,其中,所述第一指示模块包括:所述UE通过高层信令和/或物理层信令指示所述k。
- 根据权利要求9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k:所述UE通过设备到设备D2D通信的广播消息指示所述k;所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示所述k。
- 根据权利要求10所述的装置,其中,所述第一指示模块还包括以下至少之一:在所述UE通过D2D通信的广播消息指示所述k的情况下,所述广播消息承载在物理边链路广播信道PSBCH资源上,指示一个或多个k值;在所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示所述k的情况下,在所述SCI中利用n bit指示一个或多个k值,n=1或2或3;在所述UE通过SCI指示所述k的情况下,在时域资源图样TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
- 根据权利要求8至11中任一项所述的装置,其中,时域资源图样TRP通过7比特索引指示位图图样,每个所述TRP索引唯一对应于一个位图图样,所述TRP索引指示所述一个或多个k值对应的全部或部分位图图样。
- 根据权利要求8至11中任一项所述的装置,其中,时域资源图样TRP索引指示所述多个k值对应的全部或部分位图时,所述TRP索引按所述多个k值依次指示不同k值对应的全部或部分位图。
- 一种比特位数指示装置,应用于网络实体侧,包括:第二指示模块,设置为指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为所述bitmap序列的比特长度。
- 根据权利要求14所述的装置,其中,所述第二指示模块包括:所述网络侧实体通过高层信令和/或物理层信令指示所述k。
- 根据权利要求15所述的装置,其中,所述第二指示模块通过以下方式至少之一指示所述k:所述网络侧实体通过系统信息块SIB指示所述k;所述网络侧实体通过系统无线资源控制RRC消息指示所述k;所述网络侧实体通过边链路资源调度控制信令指示所述k。
- 根据权利要求16所述的装置,其中,所述第二指示模块还包括以下至少之一:在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对小区内所有D2D UE有效;在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对指定的D2D群组内UE有效;在所述网络侧实体通过RRC消息指示所述k的情况下,所述RRC消息为D2D专用配置指示消息D2D重配置消息,指示一个或多个k值;在所述网络侧实体在边链路资源调度控制信令中指示所述k的情况下,所述边链路资源调度控制信令为下行控制信息DCI格式,其中包含n比特用于指示一个或多个k值,n等于1或2或3;在所述网络侧实体通过DCI指示所述k的情况下,所述网络侧实体在TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
- 根据权利要求14至17中任一项所述的装置,其中,时域资源图样TRP通过7比特索引指示位图图样,每个所述TRP索引唯一对应于一个位图图样,所述TRP索引指示所述一个或多个k值对应的全部或部分位图图样。
- 根据权利要求14至17中任一项所述的装置,其中,时域资源图样TRP索引指示所述多个k值对应的全部或部分位图时,所述TRP索引按所述多个k值依次指示不同k值对应的全部或部分位图。
- 根据权利要求14至17中任一项所述的装置,其中,所述网络侧实体包括以下至少之一: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OAM管理器。
- 一种比特位数指示装置,应用于系统中,所述系统包括发送端UE和网络侧实体,其中,发送端UE和网络侧实体,设置为指示物理边链路共享信道PSSCH子帧指示比特位图bitmap序列的有效指示位的比特位数k,其中,k包括一个或多个数值,1≤k≤N,N为所述bitmap序列的比特长度。
- 根据权利要求21所述的装置,其中,所述发送端UE和所述网络侧实体指示所述k包括:所述网络侧实体和所述发送端UE通过高层信令和/或物理层信令指示所述k。
- 根据权利要求22所述的装置,其中,所述发送端UE和所述网络侧实体通过高层信令和物理层信令指示所述k包括以下方式至少之一:所述网络侧实体通过系统信息块SIB指示所述k,并且,所述UE通过D2D通信广播消息指示所述k;所述网络侧实体通过SIB指示所述k,并且,所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI指示所述k;所述网络侧实体通过系统无线资源控制RRC消息指示所述k,并且,所述UE通过D2D通信广播消息指示所述k;所述网络侧实体通过RRC消息指示所述k,并且,所述UE通过边链路控制消息SCI指示所述k;所述网络侧实体通过边链路资源调度控制信令指示所述k,并且,所述UE通过D2D通信广播消息指示所述k;所述网络侧实体通过边链路资源调度控制信令指示所述k,并且,所述UE通过边链路控制消息SCI指示所述k。
- 根据权利要求23所述的装置,其中,包括以下至少之一:在所述UE通过D2D通信广播消息指示所述k的情况下,所述广播消息承载在物理边链路广播信道PSBCH资源上,指示一个或多个k值;在所述UE通过D2D通信的发送终端和接收终端之间的边链路控制消息SCI的方式,指示所述k的情况下,在所述SCI中利用n bit指示一个或多个k值,所述n=1或2或3;在所述UE通过SCI指示所述k的情况下,在时域资源图样TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7;在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对小区内所有D2D UE有效;在所述网络侧实体通过系统信息块SIB指示所述k的情况下,所指示的一个或多个k值对指定的D2D群组内UE有效;在所述网络侧实体通过RRC消息指示所述k的情况下,所述RRC消息为D2D专用配置指示消息D2D重配置消息,指示一个或多个k值;在所述网络侧实体在边链路资源调度控制信令中指示所述k的情况下,所述边链路资源调度控制信令为下行控制信息DCI格式,其中包含n比特用于指示一个或多个k值,n等于1或2或3;在所述网络侧实体通过DCI指示所述k的情况下,所述网络侧实体在所述TRP对应的指示比特中以n1比特指示一个k值,以n2比特作为位图索引,用于指示位图图样,其中,每个位图索引唯一对应于一个位图图样,所述位图索引指示所述一个k值对应的全部或部分位图图样,n1=1或2或3,n1+n2=7。
- 根据权利要求21至24中任一项所述的装置,其中,时域资源图样TRP通过7比特索引指示位图图样,每个所述TRP索引唯一对应于一个位图图样,所述TRP索引指示所述一个或多个k值对应的全部或部分位图图样。
- 根据权利要求21至24中任一项所述的装置,其中,时域资源图样TRP索引指示所述多个k值对应的全部或部分位图时,所述TRP索引按所述多个k值依次指示不同k值对应的全部或部分位图。
- 根据权利要求21至24中任一项所述的装置,其中,所述网络侧实体包括以下至少之一: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OAM管理器。
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