WO2023283948A1 - 参考资源的确定方法、装置、设备及存储介质 - Google Patents

参考资源的确定方法、装置、设备及存储介质 Download PDF

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Publication number
WO2023283948A1
WO2023283948A1 PCT/CN2021/106879 CN2021106879W WO2023283948A1 WO 2023283948 A1 WO2023283948 A1 WO 2023283948A1 CN 2021106879 W CN2021106879 W CN 2021106879W WO 2023283948 A1 WO2023283948 A1 WO 2023283948A1
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Prior art keywords
resource
signaling
resource pool
transmission
sending
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PCT/CN2021/106879
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English (en)
French (fr)
Inventor
张世昌
赵振山
丁伊
Original Assignee
Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2021/106879 priority Critical patent/WO2023283948A1/zh
Priority to CN202180097624.8A priority patent/CN117223364A/zh
Publication of WO2023283948A1 publication Critical patent/WO2023283948A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the field of wireless communication technologies, and in particular, to a method, device, device, and storage medium for determining reference resources.
  • D2D device to device
  • two transmission modes are defined: one is that the terminal transmits data on the sidelink according to the resources allocated by the base station, and the base station can allocate a single transmission time for the terminal. resources, or allocate resources for semi-static transfers.
  • the other is that the terminal randomly selects transmission resources from the resource pool, or determines a candidate resource set according to the interception process, and then randomly selects resources from the candidate resource set, and then performs sidelink transmission.
  • the above-mentioned second transmission mode can avoid interference between terminals to a certain extent, but there are still problems such as hidden nodes, half-duplex restrictions, and exposed terminals.
  • an enhanced resource selection scheme is proposed: when using the above-mentioned first
  • one terminal (UE-A) can also send a reference resource set to another terminal (UE-B) to assist UE-B in resource selection.
  • one of the problems to be solved urgently is how UE-A determines the reference resource set.
  • Embodiments of the present application provide a method, device, device, and storage medium for determining reference resources, so as to improve the overall performance of sidelink communication.
  • the embodiment of the present application provides a method for determining a reference resource, the method including:
  • the reference resource information is used to assist the second device in resource selection for sidelink transmission.
  • the embodiment of the present application provides an apparatus for determining a reference resource, which includes:
  • a processing module configured to determine reference resource information of the second device through first signaling, where the first signaling is used to indicate a first resource set used by the first device and/or the second device for sidelink transmission,
  • the reference resource information is used to assist the second device in resource selection for sidelink transmission.
  • the embodiment of the present application provides an electronic device, including:
  • transceivers processors, memory
  • the memory stores computer-executable instructions
  • the processor executes the computer-implemented instructions stored in the memory, so that the processor executes the method as described in the first aspect.
  • an embodiment of the present application provides a computer storage medium for storing a computer program, and when the computer program runs on a computer, the computer executes the method described in the first aspect.
  • an embodiment of the present application provides a computer program product, which causes the computer to execute the method as described in the first aspect when the computer program product is run on a computer.
  • Embodiments of the present application provide a method, device, device, and storage medium for determining reference resources, which can be applied to the field of lateral communication.
  • the first device determines the reference resource information for the second device through the first signaling, and the reference resource The information is used to assist the second device in resource selection for sidelink transmission, where the first signaling is used to indicate the first resource set used by the first device and/or the second device for sidelink transmission.
  • the above process implements resource selection based on coordination between terminals, which can improve the overall performance of side communication.
  • FIG. 1 is a schematic diagram of an application scenario 1 provided by an embodiment of the present application.
  • FIG. 2 is a second schematic diagram of the application scenario provided by the embodiment of the present application.
  • FIG. 3 is a schematic diagram of the third application scenario provided by the embodiment of the present application.
  • FIG. 4 is a schematic diagram of resource selection through a second transmission mode
  • Figure 5 is a schematic diagram of a hidden node scene
  • FIG. 6 is a schematic diagram of a scene where a terminal is exposed
  • FIG. 7 is a schematic diagram of sidewalk resource selection based on resource coordination
  • FIG. 8 is an interactive schematic diagram 1 of a method for determining a reference resource provided by an embodiment of the present application.
  • FIG. 9 is a second interactive schematic diagram of a method for determining a reference resource provided by an embodiment of the present application.
  • FIG. 10 is a third interactive schematic diagram of the method for determining reference resources provided by the embodiment of the present application.
  • FIG. 11 is a fourth interactive schematic diagram of the method for determining reference resources provided by the embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of an apparatus for determining a reference resource provided by an embodiment of the present application.
  • FIG. 13 is a schematic diagram of a hardware structure of an electronic device provided by an embodiment of the present application.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • FIG. 1 is a first schematic diagram of an application scenario provided by an embodiment of the present application.
  • the communication system shown in FIG. 1 includes a network device 101 and two terminal devices, which are respectively terminal devices 102 and 103 . Both the terminal device 102 and the terminal device 103 are within the coverage of the network device 101 .
  • the network device 101 is connected in communication with the terminal device 102 and the terminal device 103 respectively, and the terminal device 102 is connected in communication with the terminal device 103 .
  • the terminal device 102 may send a communication message to the terminal device 103 through the network device 101 , and the terminal device 102 may also directly send the communication message to the terminal device 103 .
  • the link for direct communication between the terminal device 102 and the terminal device 103 is called a D2D link, and may also be called a proximity service (proximity service, ProSe) link or a side link.
  • the transmission resource on the D2D link may be allocated by a network device. Since both the terminal device 102 and the terminal device 103 are within the coverage of the network device 101, both the terminal device 102 and the terminal device 103 can perform sidelink communication based on the same sidelink configuration by receiving the sidelink configuration signaling from the network device 101.
  • FIG. 2 is a second schematic diagram of an application scenario provided by the embodiment of the present application.
  • the communication system shown in FIG. 2 also includes a network device 101 and two terminal devices.
  • the difference from FIG. 1 is that the terminal device 103 is within the coverage of the network device 101, and the terminal device 104 is outside the coverage of the network device 101.
  • the network device 101 is connected in communication with the terminal device 103
  • the terminal device 103 is connected in communication with the terminal device 104 .
  • the terminal device 103 may receive configuration information sent by the network device 101, and perform sidelink communication according to the configuration information. Since the terminal device 104 cannot receive the configuration information sent by the network device 101, the terminal device 104 can, according to the pre-configuration (pre-configuration) information and the information carried in the sidelink broadcast channel (Physical Sidelink Broadcast Channel, PSBCH) sent by the terminal device 103, For side communication.
  • pre-configuration Physical Sidelink Broadcast Channel
  • PSBCH Physical Sidelink Broadcast Channel
  • FIG. 3 is a third schematic diagram of an application scenario provided by the embodiment of the present application. Both the terminal device 104 and the terminal device 105 shown in FIG. 3 are outside the coverage of the network device 101 . Both the terminal device 104 and the terminal device 105 can determine the sidelink configuration according to the pre-configuration information, and perform sidelink communication.
  • the terminal equipment involved in this embodiment of the present application can also be referred to as a terminal, which can be a device with a wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as Ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.).
  • the terminal device may be user equipment (user equipment, UE), where the UE includes a handheld device, a vehicle-mounted device, a wearable device, or a computing device with a wireless communication function.
  • the UE may be a mobile phone (mobile phone), a tablet computer or a computer with a wireless transceiver function.
  • the terminal device can also be a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a smart Wireless terminals in power grids, wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • the device for realizing the function of the terminal may be a terminal; it may also be a device capable of supporting the terminal to realize the function, such as a chip system, and the device may be installed in the terminal.
  • the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.
  • the network device involved in the embodiment of the present application includes a base station (base station, BS), which may be a device deployed in a wireless access network and capable of performing wireless communication with a terminal.
  • the base station may have various forms, such as a macro base station, a micro base station, a relay station, and an access point.
  • the base station involved in the embodiment of the present application may be a base station in 5th generation mobile networks (5G) or a base station in LTE, where the base station in 5G may also be called a sending and receiving point ( transmission reception point, TRP) or gNB.
  • the device for realizing the function of the network device may be a network device; it may also be a device capable of supporting the network device to realize the function, such as a chip system, and the device may be installed in the network device.
  • the technical solutions of the embodiments of this application are mainly applied to communication systems based on New Radio (NR) technology, such as 5G communication systems, NR-V2X (vehicle to everything, V2X), NR-V2V (vehicle to vehicle vehicle to vehicle ) communication system, etc. It can also be applied to other communication systems, as long as there is resource scheduling between entities in the communication system, for example, it can be applied to resource scheduling between network equipment and terminal equipment, or resource scheduling between two terminal equipment, One of the terminal devices undertakes the function of accessing the network and so on.
  • NR New Radio
  • D2D communication has higher frequency efficiency and lower transmission delay.
  • the Internet of Vehicles system adopts a terminal-to-terminal direct communication method, and two transmission modes are defined in the 3GPP protocol: the first transmission mode and the second transmission mode.
  • the first transmission mode the transmission resource of the terminal device is allocated by the base station, and the terminal device performs data transmission on the sidelink according to the resources allocated by the base station.
  • the base station can allocate resources for a single transmission to the terminal equipment, and can also allocate resources for semi-static transmission to the terminal equipment.
  • the terminal device 102 is located within the coverage of the network device 101 , and the network device 101 allocates transmission resources for sidelink transmission to the terminal device 102 .
  • Second transmission mode the terminal device selects a resource from the resource pool for data transmission.
  • the terminal device 102 shown in FIG. 1 may autonomously select transmission resources from a resource pool configured by the network for sidelink transmission.
  • Both the terminal devices 104 and 105 shown in FIG. 3 are located outside the coverage of the network device 101, and both the terminal devices 104 and 105 can autonomously select transmission resources from a pre-configured resource pool for sidelink transmission.
  • the terminal device when the terminal device works in the second transmission mode, it can select resources according to the interception result. Specifically, when new data arrives at time n, the terminal device may select resources within the resource selection window according to the listening results of a preset period before time n.
  • Fig. 4 is a schematic diagram of selecting resources through the second transmission mode.
  • the terminal device selects resources in the resource selection window [n+T 1 , n+T 2 corresponding to time slot n ] to randomly select resources.
  • 0 ⁇ T 1 ⁇ T proc,1 , T proc,1 is determined according to the processing capability of the terminal equipment, when the subcarrier spacing is 15, 30, 60, 120kHz, T proc,1 is 3, 5, 9, 17 time slots.
  • T 2min ⁇ T 2 ⁇ remaining data delay (packet delay budget, PDB) of the service
  • the terminal device performs resource monitoring in the resource monitoring window [nT 0 , nT proc,0 ], where T 0 is 100 or 1100 ms.
  • T proc,0 is 1, 1, 2, 4 time slots.
  • the resource selection performed by the terminal device according to the second transmission mode includes the following steps:
  • Step 1 The physical layer of the terminal device excludes resources that are not suitable for sidelink transmission from the resource selection window according to the channel sensing result.
  • the terminal device takes all available resources belonging to the resource pool used by the terminal device in the resource selection window as resource set A, and any resource in resource set A is denoted as R(x, y), where x and y respectively indicate resources The frequency domain location and time domain location of . Note that the initial quantity of resources in resource set A is M total .
  • step 1 includes:
  • Ptxlg is the number after converting the resource reservation period Ptx of the terminal device into logical time slots.
  • Prxlg is the number of Prx converted into logical time slots, and Prx is any allowed resource reservation period in the resource pool.
  • n is the time slot number corresponding to the time domain position where the terminal device triggers resource selection or reselection
  • m is the time slot number corresponding to the time domain position where the terminal device senses the physical sidelink control channel PSCCH.
  • Tscal is equal to the value of T2 converted into milliseconds.
  • Step 12 If the terminal device detects the first sidelink control information transmitted in the PSCCH on the vth frequency domain resource E(v,m) within the time slot m in the listening window, the terminal device measures the PSCCH The SL-RSRP or the sidelink reference signal received power SL-RSRP of the physical sidelink shared channel PSSCH scheduled by the PSCCH (that is, the SL-RSRP of the corresponding PSSCH sent in the same time slot as the PSCCH). If the measured SL-RSRP is greater than the SL-RSRP threshold, and the resource reservation between TBs is activated in the resource pool used by the terminal device, the terminal device assumes that it has received the first side line control with the same content on the time slot m+q*Prxlg information.
  • Tscal is equal to the value of T2 converted into milliseconds.
  • Prxlg is the number of Prx converted into logical time slots, and Prx is the resource reservation period indicated by "Resource reservation period" in the first sidelink control information transmitted in the PSCCH sensed by the terminal device.
  • the terminal device will determine the resource and resource R indicated by the "Time resource assignment” and "Frequency resource assignment" fields of the first sidelink control information received in time slot m and the assumed Q pieces of first sidelink control information received.
  • the aforementioned RSRP threshold is determined by the priority P1 carried in the PSCCH sensed by the terminal device and the priority P2 of the data to be sent by the terminal device.
  • the configuration of the resource pool used by the terminal device includes an SL-RSRP threshold table, and the SL-RSRP threshold table includes SL-RSRP thresholds corresponding to all priority combinations.
  • the configuration of the resource pool can be network configuration or pre-configuration. If the remaining resources in resource set A are less than M total *X% after the above resources are excluded, raise the SL-RSRP threshold by 3dB, and re-execute the above step 1.
  • the possible value of X is ⁇ 20,35,50 ⁇
  • the configuration of the used resource pool includes the corresponding relationship between the priority and the above possible value of X, and the terminal device determines the value of X according to the priority of the data to be sent and the corresponding relationship.
  • the physical layer of the terminal device reports the resource set A after resource exclusion as a candidate resource set to a higher layer, that is, the MAC layer of the terminal device.
  • Step 2 The MAC layer of the terminal device randomly selects a resource from the reported candidate resource set to send data. That is, the terminal device randomly selects a resource from the candidate resource set to send data.
  • X can generally refer to any device with wireless receiving and sending capabilities, including but not limited to slow-moving wireless devices, fast-moving vehicle-mounted equipment, and network control nodes with wireless transmitting and receiving capabilities.
  • NR-V2X communication supports unicast, multicast, and broadcast transmission methods. For unicast transmission, the sending terminal sends data, and there is only one receiving terminal. For multicast transmission, the sending terminal sends data, and the receiving terminal is all terminals in a communication group, or all terminals within a certain transmission distance. For broadcast transmission, the sending terminal sends data, and the receiving terminal is any terminal around the sending terminal.
  • the transmission resource pool used for resource selection in the above-mentioned second transmission mode is configured by the sl-TxPoolSelectedNormal parameter in the SL-BWP-PoolConfig configuration parameter, and TxPoolSelectedNormal can indicate up to 8 transmission resource pools.
  • Each sending resource pool includes at least one of the following configuration parameters:
  • PSCCH configuration parameters (sl-PSCCH-Config);
  • PSSCH configuration parameters (sl-PSSCH-Config);
  • PSFCH configuration parameters (sl-PSFCH-Config);
  • the number of PRBs per subchannel (sl-SubchannelSize);
  • the starting point of the PRB of the subchannel with the lowest index (sl-StartRB-Subchannel);
  • MCS table configuration parameters (sl-Additional-MCS-Table);
  • Configuration parameters for resource selection via the second transmission mode (sl-UE-SelectedConfigRP);
  • Zone configuration parameters (sl-ZoneConfigMCR-List);
  • Send resource ratio parameter (sl-TxPercentageList).
  • MCS range parameter (sl-MinMaxMCS-List);
  • the terminal device randomly selects transmission resources in the resource pool, or selects transmission resources according to the interception results.
  • This resource selection method can avoid interference between terminal devices to a certain extent, but there are still the following question:
  • FIG. 5 is a schematic diagram of a hidden node scenario.
  • the sending terminal TX B selects resources according to interception, and uses the resources to send sideline data to the receiving terminal RX A. Since TX B and the sending terminal TX C are far apart , each other cannot detect each other's transmission, therefore, TX B and TX C may select the same transmission resource, then the data sent by TX C will interfere with the data sent by TX B.
  • half-duplex Hy-duplex
  • the terminal selects transmission resources through listening, within the listening window, if the terminal sends sidelink data on a certain time slot, due to half-duplex restrictions, the terminal cannot receive data sent by other terminals on this time slot. data, and no listening results. Therefore, when performing resource exclusion, the terminal will exclude all resources corresponding to the time slot in the selection window, so as to avoid interference with other terminals. Due to the limitation of half-duplex, the terminal excludes many resources that do not need to be excluded.
  • FIG. 6 is a schematic diagram of the exposed terminal scenario. As shown in Figure 6, both the transmitting terminal TX B and the transmitting terminal TX C can monitor each other, but the target receiving terminal RX A of TX B is far away from TX C, and the target receiving terminal RX of TX C D is far away from TX B. In this case, even if TX B and TX C use the same time-frequency resources, they will not affect the reception of their respective target receiving terminals. However, due to the close geographical location of the two parties, the receiving power of the other party's signal is detected during the listening process. may be very high, so that both parties will choose orthogonal time-frequency resources, which may eventually lead to a decline in resource utilization efficiency.
  • the terminal needs to continuously listen to resources to determine which resources are available, and the continuous resource listening of the terminal needs to consume a lot of energy. This is not a problem for vehicle-mounted terminals, because vehicle-mounted terminals have power supply equipment , but for handheld terminals, excessive power consumption will cause the terminal to run out of power quickly. Therefore, how to reduce the energy consumption of the terminal is also a problem that needs to be considered in the resource selection process.
  • FIG. 7 is a schematic diagram of sidelink resource selection based on resource coordination.
  • a reference resource set may also be sent by one terminal (UE-A) to another terminal (UE-B), and the reference resource set is used for Resource selection is performed on the auxiliary UE-B.
  • the reference resource set may be a resource set suitable for use by UE-B.
  • the reference resource set may also be a resource set that is not suitable for UE-B, and UE-B avoids selecting resources in the reference resource set when selecting resources, thereby avoiding Problems with hidden terminals, half-duplex limitations, etc. occur.
  • the terminal undertaking the UE-A function is called a resource coordination terminal.
  • the terminal selects resources in combination with resource sets sent by other terminals during the resource selection process, which can improve the reliability of sideline transmission .
  • a problem to be solved urgently is how UE-A determines the reference resource set. Specifically, how UE-A should determine the specific resource pool used by UE-B, and how to determine configuration parameters related to channel sensing in the specific resource pool.
  • the embodiment of this application proposes a method, device, device and storage medium for determining reference resources, which can be applied to the field of sidelink communication.
  • UE-A can determine reference resources for UE-B through at least one of the following methods gather:
  • Mode 1 UE-A determines the reference resource set suitable and/or unsuitable for UE-B by receiving indication signaling from UE-B;
  • UE-A determines the reference resource set suitable and/or unsuitable for UE-B through network configuration signaling
  • Mode 3 UE-A determines the reference resource set suitable and/or unsuitable for UE-B through pre-configuration signaling;
  • Mode 4 UE-A determines the reference resource sets that are suitable and/or unsuitable for UE-B by receiving the trigger signaling from UE-B.
  • UE-A determines the transmission resource pool used by UE-B through any one or more of the above-mentioned signaling, and performs channel detection in the transmission resource pool used by UE-B, performs resource exclusion, and determines the suitable and/or For reference resource sets that are not suitable for use by UE-B, reference resource information including the reference resource set is sent to UE-B, thereby effectively realizing resource selection based on coordination between terminals and improving transmission reliability of sidelink communication.
  • FIG. 8 is a first interactive schematic diagram of a method for determining a reference resource provided by an embodiment of the present application.
  • the first device and the second device are any two devices that establish a connection in sidelink communication, the first device is a resource coordination device, for example, the first device is the aforementioned UE-A, and the second device is the aforementioned UE-B.
  • the method for determining a reference resource in this embodiment includes the following steps:
  • Step 101 the first device determines the reference resource information of the second device through the first signaling.
  • Step 102 the first device sends reference resource information to the second device. (optional)
  • Step 103 the second device selects resources according to the reference resource information. (optional)
  • the first signaling is used to indicate the first resource set used by the first device and/or the second device for sidelink transmission
  • the reference resource information is used to assist the second device in resource selection for sidelink transmission.
  • the reference resource information includes a reference resource set, and the reference resource set is determined by the first device through channel sensing on the first resource set.
  • the first signaling includes at least one of the following signalings: second signaling from the second device; network configuration signaling; preconfiguration signaling; third signaling from the second device.
  • the second signaling is used to indicate at least one transmission resource pool used by the second device; both the network configuration signaling and the pre-configuration signaling are used to indicate the first resource pool used by the first device and/or the second device for sidelink transmission. Resource set; the third signaling is used to trigger the first device to send reference resource information to the second device.
  • both the above-mentioned second signaling and third signaling come from the second device, wherein: the second signaling can be regarded as the resource indication signaling sent by the second device, and the second device uses at least A sending resource pool notifies the first device through the second signaling, so that the first device selects a reference resource set for the second device according to the second signaling.
  • the third signaling can be regarded as a trigger signaling for the second device to trigger the first device to send the reference resource set, and the second device can indicate at least one transmission resource used by the second device in the third signaling sent to the first device pool (or an index of at least one sending resource pool), so that the first device selects a reference resource set for the second device according to the third signaling.
  • the network configuration signaling can respectively configure resource sets for sidelink transmission for the first device and the second device, and the resource sets of the first device and the resource sets of the second device may be the same or different.
  • the examples are not limiting.
  • the pre-configuration signaling can be regarded as default configuration signaling, and the first device and the second device have the same pre-configuration information of the resource pool.
  • the first device determines the reference resource set of the second device through the first signaling, which specifically includes the following two steps:
  • Step 1011 the first device determines the first resource set of the second device through the first signaling.
  • the first resource set here may also be referred to as a candidate resource set.
  • the first resource set of the second device determined by the first device includes at least one of the following sending resource pools:
  • All the sending resource pools indicated by the second device may be all or part of the sending resource pools of the second device configured by the network, or may be all or part of the preconfigured sending resource pools, and this embodiment of the present application does not impose any limitation on this.
  • the first device can listen to all the transmission resource pools indicated by the second device, and/or all the transmission resources included in the receiving resource pool of the first device configured by the network can be selected through inter-device coordination.
  • Step 1012 the first device determines a reference resource set of the second device from the first resource set.
  • the first device determines the reference resource set of the second device from the first resource set through channel sensing.
  • the receiving resource pool of the first device includes a preconfigured sending resource pool, and the preconfigured sending resource pool allows resource selection through inter-device coordination, then the first device The parameter listens to the above sending resource pool.
  • the receiving resource pool of the first device includes the sending resource pool of the second device configured by the network, and the sending resource pool configured by the network allows resource selection through inter-device coordination, then the first device according to the first device configured by the network
  • the configuration parameters of the sending resource pool of the second device listen to the above sending resource pool.
  • the configuration information is used to measure the demodulation reference signal DMRS information of the sidelink reference signal received power SL-RSRP or the minimum resource selection window information, the first device performs channel sensing according to the configuration information, and determines the reference resource set of the second device.
  • the first device can set the length of the listening window to 1100 ms, and select from the DMRS of the PSCCH or PSSCH according to the listening result.
  • One measures RSRP performs resource exclusion, and determines the reference resource set of the second device.
  • the reference resource information of the second device determined by the first device includes at least one transmission resource pool that is suitable or unsuitable for the second device to perform sidelink transmission. That is, the reference resource set of the second device includes at least one sending resource pool that is suitable or unsuitable for the second device to perform sidelink transmission.
  • the reference resource information of the second device determined by the first device includes a reference resource set and an index of at least one transmission resource pool in the reference resource set.
  • the above step 102 includes: the first device sends the reference resource set and the index of at least one sending resource pool in the reference resource set to the second device.
  • the above embodiment shows a method for determining reference resources, the first device determines the reference resource information of the second device through the first signaling, where the first signaling is used to instruct the first device and/or the second device to use The first set of resources for on-line transmission, the reference resource information is used to assist the second device in selecting resources for side-line transmission.
  • the above method effectively implements resource selection based on coordination among terminals, and can improve the overall performance of sidelink communication.
  • the following describes in detail how the first device determines the reference resource for different first signaling in the foregoing embodiments.
  • FIG. 9 is an interactive schematic diagram II of a method for determining a reference resource provided in the embodiment of the present application. As shown in FIG. 9 , the method for determining a reference resource in this embodiment includes the following steps:
  • Step 201 the first device determines the reference resource information of the second device through the second signaling from the second device.
  • Step 202 the first device sends reference resource information to the second device. (optional)
  • Step 203 the second device selects resources according to the reference resource information. (optional)
  • the second signaling is used to indicate at least one sending resource pool used by the second device.
  • the at least one sending resource pool used by the second device includes a sending resource pool configured by the network or preconfigured for the second device.
  • the at least one sending resource pool used by the second device includes a sending resource pool configured or preconfigured on the network for the second device and allowing resource coordination between devices.
  • the at least one sending resource pool indicated by the second signaling may also be a sending resource pool for the second device to send data to the first device.
  • the second signaling is PC5 radio resource control RRC signaling. Specifically, after the unicast connection is established between the first device and the second device, the second device notifies the first device of at least one sending resource pool used by it through PC5 RRC signaling.
  • the second signaling includes at least one of the following parameters of at least one transmission resource pool used by the second device:
  • PSCCH configuration parameters (sl-PSCCH-Config);
  • PSSCH configuration parameters (sl-PSSCH-Config);
  • PSFCH configuration parameters (sl-PSFCH-Config);
  • the number of PRBs per subchannel (sl-SubchannelSize);
  • the starting point of the PRB of the subchannel with the lowest index (sl-StartRB-Subchannel);
  • Configuration parameters for resource selection via the second transmission mode (sl-UE-SelectedConfigRP);
  • the configuration parameters for resource selection in the second transmission mode include the configuration parameters of each transmission resource pool indicated in TxPoolSelectedNormal above, for details, refer to the above, and will not be repeated here.
  • the second device may send configuration parameters related to time domain, frequency domain and channel sensing of at least one transmission resource pool used to send data to the first device to the first device through PC5RRC signaling
  • the configuration parameters include the following parameters: sl-PSCCH-Config, sl-PSSCH-Config, sl-PSFCH-Config, sl-SubchannelSize, sl-StartRB-Subchannel, sl-NumSubchannel, sl-UE-SelectedConfigRP, sl-RB-Number, sl-TimeResource-r16.
  • the second device needs to reset a corresponding index for each sending resource pool.
  • the second device may send at least the following parameters of at least one sending resource pool used to send data to the first device: sl-UE-SelectedConfigRP, sl-TimeResource, to the first device.
  • the first device can determine the PSCCH/PSSCH/PSFCH and frequency domain configuration in the transmission resource pool of the second device according to the receiving resource pool of the first device, that is, the first device considers that the receiving resource pool of the first device is the same as that of the second
  • the PSCCH/PSSCH/PSFCH and the frequency domain configuration of the transmission resource pool of the device are the same.
  • the receiving resource pool of the first device refers to a receiving resource pool for the first device to receive the PC5 RRC signaling.
  • the second device may send at least the following parameters of at least one sending resource pool used to send data to the first device: sl-UE-SelectedConfigRP, to the first device.
  • the first device may determine the PSCCH/PSSCH/PSFCH, frequency domain configuration, and time domain configuration in the second device’s sending resource pool according to the receiving resource pool of the first device, that is, the first device considers the receiving resource pool of the first device to be It is the same as the PSCCH/PSSCH/PSFCH, frequency domain configuration and time domain configuration of the sending resource pool of the second device.
  • the foregoing receiving resource pool of the first device refers to a receiving resource pool for the first device to receive the PC5 RRC signaling.
  • the above embodiment shows a method for determining reference resources.
  • the first device receives the second signaling sent by the second device, determines at least one transmission resource pool used by the second device according to the second signaling, and uses the Perform channel sensing in at least one sending resource pool of the device, and determine reference resource information of the second device.
  • the above method effectively implements resource selection based on coordination among terminals, and can improve the overall performance of sidelink communication.
  • Fig. 10 is a third interactive schematic diagram of the method for determining reference resources provided by the embodiment of the present application. As shown in Fig. 10, the method for determining reference resources in this embodiment includes the following steps:
  • step 301 the first device determines reference resource information of the second device through resource pool configuration signaling.
  • Step 302 the first device sends reference resource information to the second device. (optional)
  • Step 303 the second device selects resources according to the reference resource information. (optional)
  • the resource pool configuration signaling may be resource pool network configuration signaling. That is, by receiving configuration signaling from the resource pool of the network device, the first device determines at least one transmission resource pool used by the second device according to the configuration signaling from the resource pool of the network device, and determines at least one transmission resource pool used by the second device. Channel sensing is performed in the resource pool to determine reference resource information of the second device.
  • the network configuration signaling includes configuration parameters of at least one receiving resource pool of the first device.
  • the configuration parameters of at least one receiving resource pool of the first device include at least one of the following parameters:
  • the network configuration signaling of the resource pool includes sending the network configuration of the resource pool and/or receiving the network configuration of the resource pool.
  • the network configurations of the resource pools of different devices may be the same or different.
  • the configuration of the sending resource pool should indicate the index of the sending resource pool in the receiving resource pool of the first device .
  • the receiving resource pool of the first device if at least one sending resource pool corresponding to the receiving resource pool is a sending resource pool that allows resource selection through inter-device coordination, then the receiving resource pool In the configuration of , the index of each sending resource pool, the time slots contained in each sending resource pool, and the relevant configuration parameters of channel monitoring in each sending resource pool should be specified.
  • the above configuration of the sending resource pool includes the index of the sending resource pool, parameters sl-UE-SelectedConfigRP and sl-TimeResource; or only includes the index of the sending resource pool and the parameter sl-UE-SelectedConfigRP.
  • the foregoing at least one sending resource pool corresponding to each receiving resource pool includes a sending resource pool of the second device.
  • the configuration signaling of the resource pool may be the pre-configuration signaling of the resource pool. That is, the second device determines at least one transmission resource pool used by the second device through pre-configuration signaling, and performs channel sensing in the at least one transmission resource pool used by the second device to determine reference resource information of the second device.
  • the preconfiguration signaling includes a set of transmission resources used by the first device and/or the second device, and the set of transmission resources used by the first device is the same as the set of transmission resources used by the second device.
  • the preconfiguration signaling of the resource pool includes sending the preconfiguration information of the resource pool and/or receiving the preconfiguration information of the resource pool.
  • the pre-configuration information of the resource pools of different devices is the same.
  • the pre-configuration information of the resource pool is similar to the network configuration information of the resource pool. For details, see the network configuration parameters of the above-mentioned resource pool.
  • the above embodiment shows a method for determining reference resources.
  • the first device determines the reference resource information of the second device through resource pool configuration signaling, where the resource pool configuration signaling can be network configuration signaling or pre-configuration signaling .
  • the second device may determine at least one transmission resource pool used by the second device according to the configuration signaling of the resource pool, and perform channel sensing in the at least one transmission resource pool used by the second device to determine the reference resource of the second device information.
  • the above method effectively implements resource selection based on coordination among terminals, and can improve the overall performance of sidelink communication.
  • FIG. 11 is an interactive schematic diagram 4 of the method for determining reference resources provided by the embodiment of the present application. As shown in FIG. 11 , the method for determining reference resources in this embodiment includes the following steps:
  • Step 401 the first device determines the reference resource information of the second device through third signaling from the second device.
  • Step 402 the first device sends reference resource information to the second device. (optional)
  • Step 403 the second device selects resources according to the reference resource information. (optional)
  • the third signaling is used to trigger the first device to send reference resource information to the second device.
  • the third signaling includes an index used to indicate at least one sending resource pool of the second device.
  • the second device should indicate the index of at least one transmission resource pool used by the second device in the third signaling sent to the first device, so that the first device can be in the at least one transmission resource pool indicated by the second device Resource exclusion is performed according to the channel sensing result, and reference resource information of the second device is determined.
  • the at least one sending resource pool of the second device indicated in the third signaling may be a preconfigured sending resource pool.
  • the above embodiment shows a method for determining reference resources.
  • the first device receives the trigger signaling sent by the second device, determines at least one transmission resource pool used by the second device according to the trigger signaling, and selects at least one resource pool used by the second device.
  • Channel sensing is performed in a sending resource pool to determine reference resource information of the second device.
  • the above method effectively implements resource selection based on coordination among terminals, and can improve the overall performance of sidelink communication.
  • the first device may select different methods for determining reference resources to determine reference resource information for the second device.
  • the first device may use the second signaling from the second device and/or the network configuration signaling of the resource pool , to determine the reference resource information of the second device.
  • the first device may pass the second signaling from the second device and/or the network of the resource pool Configure signaling to determine reference resource information of the second device.
  • the first device may use the second signaling from the second device and/or the network configuration of the resource pool Signaling, determining reference resource information of the second device.
  • the first device may determine the reference resource of the second device through pre-configuration signaling of the resource pool information.
  • the first device may determine the reference resource information of the second device through resource pool pre-configuration signaling.
  • the first device and the second device since the first device and the second device have the same pre-configuration information of the resource pool, there is no need for signaling interaction between the first device and the second device, and the first device can use the resource pool
  • the pre-configuration signaling determines the set of reference resources that are suitable and/or unsuitable for use by the second device.
  • FIG. 12 is a schematic structural diagram of an apparatus for determining reference resources provided by an embodiment of the present application.
  • the apparatus 500 for determining reference resources in this embodiment includes: a processing module 501 and a sending module 502 .
  • a processing module 501 configured to determine reference resource information of the second device through first signaling, where the first signaling is used to indicate a first set of resources used by the first device and/or the second device for sidelink transmission , the reference resource information is used to assist the second device in resource selection for sidelink transmission.
  • the reference resource information includes a reference resource set, and the reference resource set is determined by the first device through channel sensing on the first resource set.
  • the first signaling includes at least one of the following signaling: second signaling from the second device; network configuration signaling; pre-configuration signaling; The third signaling of the second device;
  • the second signaling is used to indicate at least one transmission resource pool used by the second device; the network configuration signaling and the pre-configuration signaling are both used to indicate the first device and/or the The first resource set used by the second device for sidelink transmission; the third signaling is used to trigger the first device to send the reference resource information to the second device.
  • the second signaling is PC5 radio resource control RRC signaling.
  • the at least one sending resource pool used by the second device includes a sending resource pool configured or preconfigured by the network for the second device.
  • the at least one sending resource pool used by the second device includes a sending resource pool configured or pre-configured on the network for the second device and allowing resource coordination between devices.
  • the second signaling includes at least one of the following parameters of at least one transmission resource pool used by the second device:
  • Configuration parameters of the physical sidelink control channel PSCCH configuration parameters of the physical sidelink shared channel PSSCH, configuration parameters of the physical sidelink feedback channel PSFCH, the number of PRBs of each subchannel, the starting point of the PRB of the subchannel with the lowest index, and the subchannel
  • the number is the configuration parameter for resource selection in the second transmission mode, the number of PRBs, and the number of time slots.
  • the network configuration signaling includes configuration parameters of at least one receiving resource pool of the first device.
  • the configuration parameters of at least one receiving resource pool of the first device include at least one of the following parameters:
  • the at least one sending resource pool corresponding to each receiving resource pool includes a sending resource pool of the second device.
  • the pre-configuration signaling includes a set of transmission resources used by the first device and/or the second device, and the set of transmission resources used by the first device is the same as the set of transmission resources used by the first device.
  • the sending resource sets used by the second device are the same.
  • the third signaling includes an index used to indicate at least one sending resource pool of the second device.
  • the first resource set includes at least one of the following sending resource pools:
  • the reference resource information includes at least one transmission resource pool that is suitable or unsuitable for the second device to perform sidelink transmission.
  • the sending module 502 is configured to send the reference resource information to the second device; the reference resource information includes a reference resource set and at least An index of a sending resource pool.
  • the apparatus for determining reference resources provided in the embodiments of the present application is used to implement the technical solution performed by the first device in the foregoing method embodiments, and its implementation principles and technical effects are similar, so details are not repeated here.
  • the division of the various modules of the above reference resource determination apparatus is only a division of logical functions, and may be fully or partially integrated into one physical entity or physically separated during actual implementation.
  • these modules can all be implemented in the form of calling software through processing elements; they can also be implemented in the form of hardware; some modules can also be implemented in the form of calling software through processing elements, and some modules can be implemented in the form of hardware.
  • the processing module can be a separate processing element, or it can be integrated in a chip of the above-mentioned device.
  • each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.
  • the above modules may be at least one integrated circuit configured to implement the above method, for example: at least one specific integrated circuit (application specific integrated circuit, ASIC), or, at least one microprocessor (digital signal processor, DSP), Or, one or more field programmable gate arrays (field programmable gate array, FPGA), etc.
  • ASIC application specific integrated circuit
  • DSP digital signal processor
  • FPGA field programmable gate array
  • the processing element may be a general-purpose processor, such as a central processing unit (central processing unit, CPU) or other processors that can call program codes.
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises at least one computer instruction.
  • the computer program instructions When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device including at least one available medium integrated server, data center, or the like.
  • the available medium may be a magnetic medium (such as a floppy disk, a hard disk, or a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)), etc.
  • FIG. 13 is a schematic diagram of the hardware structure of the electronic device provided in the embodiment of the present application.
  • the electronic device 600 provided in the present embodiment includes: a transceiver 601, a processor 602, and a memory 603;
  • the memory 603 stores computer-executable instructions
  • the processor 602 executes the computer-executed instructions stored in the memory 603, so that the processor 602 executes the technical solution of the first device in any one of the foregoing method embodiments.
  • the memory 603 can be independent or integrated with the processor 602 .
  • the electronic device 600 may further include: a bus 604 , configured to connect the memory 603 and the processor 602 .
  • the processor 602 may be a chip.
  • the embodiment of the present application also provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, they are used to implement the first step in any of the foregoing method embodiments. 1.
  • An embodiment of the present application further provides a computer program, which is used to execute the technical solution of the first device in any one of the foregoing method embodiments when the computer program is executed by a processor.
  • An embodiment of the present application further provides a computer program product, including program instructions, and the program instructions are used to realize the technical solution of the first device in any one of the foregoing method embodiments.
  • the embodiment of the present application also provides a chip, including: a processing module and a communication interface, where the processing module can execute the technical solution of the first device in the foregoing method embodiment.
  • the chip also includes a storage module (such as a memory), the storage module is used to store instructions, and the processing module is used to execute the instructions stored in the storage module, and the execution of the instructions stored in the storage module makes the processing module perform any of the foregoing.
  • a storage module such as a memory
  • the storage module is used to store instructions
  • the processing module is used to execute the instructions stored in the storage module, and the execution of the instructions stored in the storage module makes the processing module perform any of the foregoing.
  • “at least two” means two or more, and “multiple” means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the contextual objects are an “or” relationship; in the formula, the character “/” indicates that the contextual objects are a “division” relationship.
  • “At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • At least one item (piece) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein, a, b, c can be single or multiple indivual.
  • sequence numbers of the above-mentioned processes do not mean the order of execution, and the order of execution of the processes should be determined by their functions and internal logic, and should not be used in the implementation of this application.
  • the implementation of the examples constitutes no limitation.

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Abstract

本申请提供一种参考资源的确定方法、装置、设备及存储介质，可应用于侧行通信领域，该方法中第一设备通过第一信令为第二设备确定参考资源信息，参考资源信息用于辅助第二设备进行侧行传输的资源选取，其中第一信令用于指示第一设备和/或第二设备用于侧行传输的第一资源集合。上述过程实现基于终端之间协调的资源选取，可提升侧行通信的整体性能。

Description

参考资源的确定方法、装置、设备及存储介质 技术领域
本申请实施例涉及无线通信技术领域，尤其涉及一种参考资源的确定方法、装置、设备及存储介质。
背景技术
目前在设备到设备(device to device，D2D)通信技术中，定义了两种传输模式：一种是终端根据基站分配的资源在侧行链路上传输数据，基站可以为终端分配单次传输的资源，或者分配半静态传输的资源。另一种是终端在资源池中随机选取传输资源，或者根据侦听流程确定候选资源集合，进而在候选资源集合中随机选取资源，进而进行侧行传输。
上述第二种传输模式可以在一定程度上避免终端之间的干扰，但还存在隐藏节点、半双工限制、暴露终端等问题，对此提出了一种增强的资源选取方案：在采用上述第二种传输模式进行资源侦听的基础上，还可以通过一个终端(UE-A)为另一个终端(UE-B)发送一个参考资源集合，辅助UE-B进行资源选取。
在上述增强的资源选取方案中，目前亟待解决的问题之一是UE-A如何确定参考资源集合。
发明内容
本申请实施例提供一种参考资源的确定方法、装置、设备及存储介质，提升侧行通信的整体性能。
第一方面，本申请实施例提供一种参考资源的确定方法，该方法包括：
第一设备通过第一信令确定第二设备的参考资源信息，所述第一信令用于指示所述第一设备和/或所述第二设备用于侧行传输的第一资源集合，所述参考资源信息用于辅助所述第二设备进行侧行传输的资源选取。
第二方面，本申请实施例提供一种参考资源的确定装置，该装置包括：
处理模块，用于通过第一信令确定第二设备的参考资源信息，所述第一信令用于指示第一设备和/或所述第二设备用于侧行传输的第一资源集合，所述参考资源信息用于辅助所述第二设备进行侧行传输的资源选取。
第三方面，本申请实施例提供一种电子设备，包括：
收发器、处理器、存储器；
所述存储器存储计算机执行指令；
所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执行如第一方面所述的方法。
第四方面，本申请实施例提供一种计算机存储介质，用于存储计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如第一方面所述的方法。
第五方面，本申请实施例提供一种计算机程序产品，当所述计算机程序产品在计算机上运行时，使得所述计算机执行如第一方面所述的方法。
本申请实施例提供一种参考资源的确定方法、装置、设备及存储介质，可应用于侧行通信领域，该方法中第一设备通过第一信令为第二设备确定参考资源信息，参考资源信息用于辅助第二设备进行侧行传输的资源选取，其中第一信令用于指示第一设备和/或第二设备用于侧行传输的第一资源集合。上述过程实现基于终端之间协调的资源选取，可提升侧行通信的整体性能。
附图说明
图1为本申请实施例提供的应用场景示意图一；
图2为本申请实施例提供的应用场景示意图二；
图3为本申请实施例提供的应用场景示意图三；
图4为通过第二传输模式选取资源的示意图；
图5为隐藏节点的场景示意图；
图6为暴露终端的场景示意图；
图7为基于资源协调的侧行资源选取的示意图；
图8为本申请实施例提供的参考资源的确定方法的交互示意图一；
图9为本申请实施例提供的参考资源的确定方法的交互示意图二；
图10为本申请实施例提供的参考资源的确定方法的交互示意图三；
图11为本申请实施例提供的参考资源的确定方法的交互示意图四；
图12为本申请实施例提供的参考资源的确定装置的结构示意图；
图13为本申请实施例提供的电子设备的硬件结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的说明书、权利要求书及上述附图中的术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
在本申请实施例的描述中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
在介绍本申请实施例提供的技术方案之前，首先对本申请实施例可能的应用场景进行说明。
图1为本申请实施例提供的应用场景示意图一。图1所示的通信系统中包括一个网络设备101以及两个终端设备，分别为终端设备102和103，终端设备102和终端设备103均处于网络设备101的覆盖范围内。网络设备101分别与终端设备102、终端设备103通信连接，终端设备102与终端设备103通信连接。
示例性的，终端设备102可以通过网络设备101向终端设备103发送通信消息，终端设备102还可以直接向终端设备103发送通信消息。其中，终端设备102与终端设备103之间直接通信的链路称为D2D链路，也可以称为临近服务(proximity service，ProSe)链路或侧行链路。D2D链路上的传输资源可以由网络设备分配。由于终端设备102和终端设备103均处于网络设备101的覆盖范围内，终端设备102和终端设备103均可以通过接收网络设备101的侧行配置信令，基于相同的侧行配置进行侧行通信。
图2为本申请实施例提供的应用场景示意图二。图2所示的通信系统同样包括一个网络设备101以两个终端设备，与图1不同的是，终端设备103处于网络设备101的覆盖范围内，终端设备104在网络设备101的覆盖范围之外。网络设备101与终端设备103通信连接，终端设备103与终端设备104通信连接。
示例性的，终端设备103可以接收网络设备101发送的配置信息，根据配置信息进行侧行通信。由于终端设备104无法接收网络设备101发送的配置信息，终端设备104可以根据预配置(pre-configuration)信息以及终端设备103发送的侧行广播信道(Physical Sidelink Broadcast Channel，PSBCH)中携带的信息，进行侧行通信。
图3为本申请实施例提供的应用场景示意图三。图3所示的终端设备104和终端设备105均在网络设备101的覆盖范围之外。终端设备104与终端设备105均可以根据预配置信息确定侧行配置，进行侧行通信。
本申请实施例涉及到的终端设备还可以称为终端，可以是一种具有无线收发功能的设备，其可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。终端设备可以是用户设备(user equipment，UE)，其中，UE包括具有无线通信功能的手持式设备、车载设备、可穿戴设备或计算设备。示例性的，UE可以是手机(mobile phone)、平板电脑或带无线收发功能的电脑。终端设备还可以是虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制中的无线终端、无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请实施例中，用于实现终端的功能的装置可以是终端；也可以是能够支持终端实现该功能的装置，例如芯片系统，该装置可以被安装在终端中。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。
本申请实施例涉及到的网络设备包括基站(base station，BS)，可以是一种部署在无线接入网中能够和终端进行无线通信的设备。其中，基站可能有多种形式，比如宏基站、微基站、中继站和接入点等。示例性的，本申请实施例涉及到的基站可以是第五代移动通信(5th generation mobile networks，5G)中的基站或LTE中的基站，其中，5G中的基站还可以称为发送接收点(transmission reception point，TRP)或gNB。本申请实施例中，用于实现网络设备的功能的装置可以是网络设备；也可以是能够支持网络设备实现该功能的装置，例如芯片系统，该装置可以被安装在网络设备中。
本申请实施例的技术方案主要应用于基于新空口(New Radio,NR)技术的通信系统，例如5G通信系统、NR-V2X(vehicle to everything，V2X)、NR-V2V(车对车vehicle to vehicle)通信系统等。也可以应用于其它的通信系统，只要该通信系统中存在实体之间的资源调度即可，例如可以应用在网络设备和终端设备之间的资源调度，或者两个终端设备之间的资源调度，其中一个终端设备承担接入网络的功能等。
需要说明的是，本申请实施例描述的系统架构以及应用场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的问题，同样适用。
与传统的蜂窝系统中通信数据通过基站接收或发送的方式不同，D2D通信具有更高的频率效率以及更低的传输时延。车联网系统采用终端到终端直接通信的方式，在3GPP协议定义了两种传输模式：第一传输模式和第二传输模式。
第一传输模式：终端设备的传输资源是由基站分配的，终端设备根据基站分配的资源在侧行链路上进行数据传输。基站可以为终端设备分配单次传输的资源，也可以为终端设备分配半静态传输的资源。示例性的，图1中，终端设备102位于网络设备101覆盖范围内，网络设备101为终端设备102分配侧行传输使用的传输资源。
第二传输模式：终端设备在资源池中选取一个资源进行数据传输。示例性的，图1所示的终端设备102可以在网络配置的资源池中自主选取传输资源进行侧行传输。图3所示的终端设备104和105均位于网络设备101覆盖范围外，终端设备104和105均可以在预配置的资源池中自主选取传输资源进行侧行传输。
基于上述描述可知，终端设备工作在第二传输模式时，可以根据侦听结果进行资源选取。具体的，当在时刻n有新的数据达到时，终端设备可根据时刻n之前的预设时段的侦听结果，在资源选择窗内进行资源选取。
图4为通过第二传输模式选取资源的示意图，如图4所示，在时隙n有业务数据到达时，终端设备在时隙n对应的资源选择窗[n+T 1，n+T 2]内随机选取资源。其中，0≤T 1≤T proc,1，T proc,1是根据终端设备的处理能力确定，当子载波间隔是15，30，60，120kHz时，T proc,1为3，5，9，17个时隙。T 2min≤T 2≤业务的剩余数据时延(packet delay budget，PDB)，T 2min根据配置参数确定，T 2min的取值集合为{1，5，10，20}*2 μ个时隙，其中μ＝0，1，2，3分别对应的子载波间隔是15，30，60，120kHz，终端设备根据自身待发送数据的优先级从T 2min的取值集合中确定T 2min。终端设备在资源侦听窗[n-T 0，n-T proc,0]进行资源侦听，其中T 0取值为100或1100ms。当子载波间隔是15，30，60，120kHz时，T proc,0为1，1，2，4个时隙。
具体的，终端设备按照第二传输模式进行资源选取包括如下步骤：
步骤1、终端设备的物理层根据信道侦听结果从资源选择窗中排除不适合用于侧行传输的资源。
本步骤中，终端设备将资源选择窗内所有属于终端设备所用资源池的可用资源作为资源集合A，资源集合A中的任意一个资源记为R(x,y)，其中x和y分别指示资源的频域位置和时域位置。记资源集合A中资源的初始数量为M total。
具体的，步骤1包括：
步骤11、如果终端设备在侦听窗内时隙a发送数据，没有进行侦听，则终端设备将判断时隙a+q*Prxlg与资源R(x,y+j*Ptxlg)是否重叠，如果重叠，则把资源R(x,y)从资源集合A中排除。其中j＝0,1,2,3…C-1，C由终端设备生成的随机counter值确定。Ptxlg为终端设备的资源预留周期Ptx转化为逻辑时隙后的数目。Prxlg为Prx转化为逻辑时隙后的数目，Prx为资源池内任何一个允许的资源预留周期。如果Prx<Tscal并且n-m<＝Prxlg,
Figure PCTCN2021106879-appb-000001
否则Q＝1，n为终端设备触发资源选择或重选的时域位置对应的时隙号，m为终端设备侦听到物理侧行控制信道PSCCH的时域位置对应的时隙号。Tscal等于T2转化为毫秒后的值。
步骤12、如果终端设备在侦听窗内时隙m内的第v个频域资源E(v,m)上侦听到PSCCH中传输的第一侧行控制信息，则终端设备测量该PSCCH的SL-RSRP或者该PSCCH调度的物理侧行共享信道PSSCH的侧行参考信号接收功率SL-RSRP(即与该PSCCH在同一时隙中发送的对应的PSSCH的SL-RSRP)。如果测量的SL-RSRP大于SL-RSRP门限，且终端设备所用资源池内激活了TB间的资源预留，则终端设备假定在时隙m+q*Prxlg上收到了相同内容的第一侧行控制信息。其中q＝1,2,3…Q，如果Prx<Tscal并且n-m<＝Prxlg,
Figure PCTCN2021106879-appb-000002
否则Q＝1。Tscal等于T2转化为毫秒后的值。Prxlg为Prx转化为逻辑时隙后的数目，Prx为终端设备侦听到的PSCCH中传输的第一侧行控制信息中“Resource reservation period”指示的资源预留周期。终端设备将判断在时隙m收到的第一侧行控制信息和这些假定收到的Q个第一侧行控制信息的“Time resource assignment”和“Frequency resource assignment”域指示的资源与资源R(x,y+j*Ptxlg)是否重叠，若重叠则从资源集合A中排除对应资源R(x，y)。其中j＝0,1,2,3…C-1，C由终端设备生成的随机counter值确定。Ptxlg是Ptx转化为逻辑时隙后的数目，Ptx为进行资源选择的终端设备确定的资源预留周期。
上述RSRP门限是由终端设备侦听到的PSCCH中携带的优先级P1和终端设备待发送数据的优先级P2决定的。终端设备所用资源池的配置中包含一张SL-RSRP门限表，该SL-RSRP门限表包含了所有优先级组合对应的SL-RSRP门限。资源池的配置可以是网络配置或者预配置的。如果在上述资源排除后资源集合A中剩余资源不足M total*X％，则将SL-RSRP门限抬升3dB，重新执行上述步骤1，X可能的取值为{20,35,50}，终端设备所用资源池的配置中包含优先级与上述X可能取值的对应关系，终端设备根据待发送数据的优先级及该对应关系，确定X的值。
终端设备的物理层将资源排除后的资源集合A作为候选资源集合上报给高层，即终端设备的MAC层。
步骤2、终端设备的MAC层从上报的候选资源集合中随机选择资源发送数据。即终端设备从候选资源集合中随机选择资源发送数据。
NR-V2X通信中，X可以泛指任意具有无线接收和发送能力的设备，包括但不限于慢速移动的无线装置，快速移动的车载设备，具有无线发射接收能力的网络控制节点等。NR-V2X通信支持单播、组播、广播的传输方式。对于单播传输，发送终端发送数据，接收终端只有一个。对于组播传输，发送终端发送数据，接收终端是一个通信组内的所有终端，或者是在一定传输距离内的所有终端。对于广播传输，发送终端发送数据，接收终端是发送终端周围的任意一个终端。
NR-V2X通信中，用于上述第二传输模式进行资源选取的发送资源池由SL-BWP-PoolConfig配置参数中的sl-TxPoolSelectedNormal参数配置，TxPoolSelectedNormal中可以指示最多8个发送资源池。其中每个发送资源池包括以下配置参数的至少一项：
物理侧行控制信道PSCCH配置参数(sl-PSCCH-Config)；
物理侧行共享信道PSSCH配置参数(sl-PSSCH-Config)；
物理侧行反馈信道PSFCH配置参数(sl-PSFCH-Config)；
同步源配置参数(sl-SyncAllowed)；
每个子信道的物理资源块PRB个数(sl-SubchannelSize)；
无效位(dummy)；
索引最低的子信道的PRB的起点(sl-StartRB-Subchannel)；
子信道个数(sl-NumSubchannel)；
MCS表格配置参数(sl-Additional-MCS-Table)；
CBR测量RSSI门限配置参数(sl-ThreshS-RSSI-CBR)；
CBR测量窗大小配置参数(sl-TimeWindowSizeCBR)
CR测量窗大小配置参数(sl-TimeWindowSizeCR)
相位跟踪信号配置参数(sl-PTRS-Config)
通过第二传输模式进行资源选择的配置参数(sl-UE-SelectedConfigRP)；
邻区接收参数(sl-RxParametersNcell)；
区域配置参数(sl-ZoneConfigMCR-List)；
平滑滤波系数(sl-FilterCoefficient)；
PRB个数(sl-RB-Number)；
资源抢占激活/去激活参数(sl-PreemptionEnable)；
相对于URLLC业务的优先级门限(sl-PriorityThreshold-UL-URLLC)；
侧行优先级门限(sl-PriorityThreshold)；
资源开销参数(sl-X-Overhead)；
功率控制参数(sl-PowerControl)；
发送资源比例参数(sl-TxPercentageList)；
MCS范围参数(sl-MinMaxMCS-List)；
时隙个数(sl-TimeResource)。
在上述第二传输模式中，终端设备在资源池中随机选取传输资源，或者根据侦听结果选取传输资源，这种资源选取方式可以在一定程度上避免终端设备之间的干扰，但是仍存在以下问题：
第一，隐藏节点(Hidden node)问题。图5为隐藏节点的场景示意图，如图5所示，发送终端TX B根据侦听选取资源，并利用该资源向接收终端RX A发送侧行数据，由于TX B和发送终端TX C相距较远，互相侦听不到对方的传输，因此，TX B和TX C可能选取相同的传输资源，则TX C发送的数据会对TX B发送的数据造成干扰。
第二，半双工(Half-duplex)问题。当终端通过侦听选取传输资源时，在侦听窗口内，如果该终端在某个时隙上发送侧行数据，由于半双工的限制，该终端在该时隙上不能接收其他终端发送的数据，也没有侦听结果。因此，终端在进行资源排除时，会把选择窗内与该时隙对应的资源全部排除掉，以避免和其他终端的干扰。由于半双工的限制会导致该终端排除了很多不需要排除的资源。
第三，暴露终端问题。图6为暴露终端的场景示意图，如图6所示，发送终端TX B和发送终端TX C均可以监听到对方，但TX B的目标接收终端RX A远离TX C，TX C的目标接收终端RX D远离TX B，这种情况下TX B和TX C即使使用相同的时频资源也不会影响各自目标接收终端的接收，但由于双方地理位置接近，侦听过程中检测到对方的信号接收功率可能会很高，从而双方会选择到正交的时频资源，最终可能导致资源利用效率的下降。
第四，功耗问题。在上述侦听过程中，需要终端持续的进行资源侦听以判断哪些资源是可用的，而终端持续进行资源侦听需要消耗很大的能量，这对于车载终端不是问题，因为车载终端有供电设备，但是对于手持终端，能耗过大会导致终端很快就没电了，因此，如何降低终端的能耗也是资源选取过程中需要考虑的问题。
由于上述的第二传输模式的资源选取过程中存在上述问题，提出了增强的资源选取方案。图7为基于资源协调的侧行资源选取的示意图。如图7所示，在第二传输模式采用的资源侦听的基础上，还可以通过一个终端(UE-A)为另一个终端(UE-B)发送一个参考资源集合，该参考资源集合用于辅助UE-B进行资源选取。该参考资源集合可以是适合于UE-B使用的资源集合，当UE-B选择用于向目标接收终端发送侧行数据的资源时，可以优先从该参考资源集合中选取资源，从而可以提升目标接收终端接收该侧行数据的可靠性；或者，该参考资源集合也可以是不适合UE-B使用的资源集合，UE-B在选取资源的时避免选取该参考资源集合中的资源，从而避免发生隐藏终端，半双工限制等问题。其中，承担UE-A功能的终端称为资源协调终端。
相对于目前第二传输模式中终端自主选取传输资源的方式，在上述资源分配方式中，终端在进行资源选取过程中，结合其他终端发送的资源集合进行资源选取，可以提高侧行传输的可靠性。
在上述基于资源协调的侧行资源选择中，目前亟待解决的一个问题是UE-A如何确定参考资源集合。具体的，UE-A应如何确定UE-B使用的特定资源池，以及如何确定特定资源池内信道侦听相关的配置参数。
针对上述问题，本申请实施例提出一种参考资源的确定方法、装置、设备及存储介质，可应用于侧行通信领域，UE-A可通过如下方式的至少一种为UE-B确定参考资源集合：
方式1：UE-A通过接收UE-B的指示信令确定适合和/或不适合UE-B使用的参考资源集合；
方式2：UE-A通过网络配置信令确定适合和/或不适合UE-B使用的参考资源集合；
方式3：UE-A通过预配置信令确定适合和/或不适合UE-B使用的参考资源集合；
方式4：UE-A通过接收UE-B的触发信令确定适合和/或不适合UE-B使用的参考资源集合。
具体的，UE-A通过上述任意一种或多种信令确定UE-B使用的发送资源池，并在UE-B使用的发送资源池内进行信道侦听，进行资源排除，确定适合和/或不适合UE-B使用的参考资源集合，向UE-B发送包括参考资源集合的参考资源信息，从而有效实现基于终端之间协调的资源选取，提升侧行通信的传输可靠性。
下面通过具体实施例对本申请实施例提供的技术方案进行详细说明。需要说明的是，本申请实施例提供的技术方案可以包括以下内容中的部分或全部，下面这几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例中不再赘述。
图8为本申请实施例提供的参考资源的确定方法的交互示意图一。第一设备和第二设备为侧行通信中建立连接的任意两个设备，第一设备为资源协调设备，例如第一设备为上述UE-A，第二设备为上述UE-B。
如图8所示，本实施例的参考资源的确定方法，包括如下几个步骤：
步骤101、第一设备通过第一信令确定第二设备的参考资源信息。
步骤102、第一设备向第二设备发送参考资源信息。(可选)
步骤103、第二设备根据参考资源信息进行资源选取。(可选)
本实施例中，第一信令用于指示第一设备和/或第二设备用于侧行传输的第一资源集合，参考资源信息用于辅助第二设备进行侧行传输的资源选取。
可选的，参考资源信息包括参考资源集合，参考资源集合是第一设备通过对第一资源集合进行信道侦听确定的。
可选的，第一信令包括以下信令的至少一项：来自第二设备的第二信令；网络配置信令；预配置信令；来自第二设备的第三信令。
其中，第二信令用于指示第二设备使用的至少一个发送资源池；网络配置信令和预配置信令均用于指示第一设备和/或第二设备用于侧行传输的第一资源集合；第三信令用于触发第一设备向第二设备发送参考资源信息。
需要说明的是，上述的第二信令和第三信令均来自第二设备，其中：第二信令可以看作是第二设备发送的资源指示信令，第二设备将其使用的至少一个发送资源池通过第二信令通知第一设备，以使第一设备根据第二信令为第二设备选取参考资源集合。第三信令可以看作是第二设备触发第一设备发送参考资源集合的触发信令，第二设备可以在发送给第一设备的第三信令中指示第二设备使用的至少一个发送资源池(或者至少一个发送资源池的索引)，以使第一设备根据第三信令为第二设备选取参考资源集合。
需要说明的是，网络配置信令可以分别为第一设备、第二设备配置侧行传输的资源集合，第一设备的资源集合与第二设备的资源集合可能相同也可能不同，对此本申请实施例不作任何限制。预配置信令可以看作是默认配置信令，第一设备和第二设备拥有相同的资源池的预配置信息。
本实施例的一个可选实施例中，第一设备通过第一信令确定第二设备的参考资源集合，具体包括如下两个步骤：
步骤1011、第一设备通过第一信令确定第二设备的第一资源集合。
这里的第一资源集合也可称为候选资源集合。
可选的，第一设备确定的第二设备的第一资源集合包括以下发送资源池的至少一项：
第二设备指示的所有发送资源池；或者
网络配置的第一设备的接收资源池中包含的所有允许设备之间进行资源协调的发 送资源池；或者
预配置的第一设备的接收资源池中包含的所有允许设备之间进行资源协调的发送资源池。
其中，第二设备指示的所有发送资源池可以是网络配置的第二设备的全部或部分发送资源池，也可以是预配置的全部或部分发送资源池，对此本申请实施例不作任何限制。
从上述实施例可知，第一设备可侦听第二设备指示的所有发送资源池，和/或，网络配置的第一设备的接收资源池中包含的所有可通过设备间协调进行资源选取的发送资源池，和/或，预配置的第一设备的接收资源池中包含的所有可通过设备间协调进行资源选取的发送资源池。
步骤1012、第一设备从第一资源集合中确定第二设备的参考资源集合。
具体的，第一设备通过信道侦听从第一资源集合中确定第二设备的参考资源集合。
可选的，如果第一设备的接收资源池中包括预配置的发送资源池，并且预配置的发送资源池允许通过设备间协调进行资源选取，则第一设备根据预配置的发送资源池的配置参数侦听上述发送资源池。
可选的，如果第一设备的接收资源池中包括网络配置的第二设备的发送资源池，并且网络配置的发送资源池允许通过设备间协调进行资源选取，则第一设备根据网络配置的第二设备的发送资源池的配置参数侦听上述发送资源池。
在信道侦听过程中，如果发送资源池的配置中包括侦听窗的配置信息，该配置信息用于测量侧行参考信号接收功率SL-RSRP的解调参考信号DMRS信息或最小资源选择窗的信息，则第一设备根据该配置信息进行信道侦听，确定第二设备的参考资源集合。
在信道侦听过程中，如果发送资源池的配置中不包括侦听窗的配置信息，则第一设备可以将侦听窗的长度设置为1100ms，根据侦听结果从PSCCH或PSSCH的DMRS中选择一个测量RSRP，进行资源排除，确定第二设备的参考资源集合。
可选的，在一些实施例中，第一设备确定的第二设备的参考资源信息包括适合或不适合第二设备进行侧行传输的至少一个发送资源池。即第二设备的参考资源集合包括适合或不适合第二设备进行侧行传输的至少一个发送资源池。
可选的，在一些实施例中，第一设备确定的第二设备的参考资源信息包括参考资源集合以及参考资源集合中的至少一个发送资源池的索引。相应的，上述步骤102，包括：第一设备向第二设备发送参考资源集合以及参考资源集合中的至少一个发送资源池的索引。
上述实施例示出了一种参考资源的确定方法，第一设备通过第一信令确定第二设备的参考资源信息，其中第一信令用于指示第一设备和/或第二设备用于侧行传输的第一资源集合，参考资源信息用于辅助第二设备进行侧行传输的资源选取。上述方法有效实现基于终端之间协调的资源选取，可提升侧行通信的整体性能。
基于上述实施例，下面针对上述实施例中不同的第一信令，第一设备如何进行参考资源确定进行详细说明。
图9为本申请实施例提供的参考资源的确定方法的交互示意图二，如图9所示，本实施例的参考资源的确定方法，包括如下几个步骤：
步骤201、第一设备通过来自第二设备的第二信令确定第二设备的参考资源信息。
步骤202、第一设备向第二设备发送参考资源信息。(可选)
步骤203、第二设备根据参考资源信息进行资源选取。(可选)
本实施例中，第二信令用于指示第二设备使用的至少一个发送资源池。
可选的，第二设备使用的至少一个发送资源池包括网络配置或预配置给第二设备 的发送资源池。
可选的，第二设备使用的至少一个发送资源池包括在网络配置或预配置给第二设备的且允许设备之间进行资源协调的发送资源池。
可选的，第二信令指示的至少一个发送资源池也可能是第二设备向第一设备发送数据的发送资源池。
可选的，第二信令为PC5无线资源控制RRC信令。具体的，在第一设备和第二设备之间建立单播连接后，第二设备将其使用的至少一个发送资源池通过PC5RRC信令通知第一设备。
本实施例中，第二信令包括第二设备使用的至少一个发送资源池的如下参数的至少一项：
物理侧行控制信道PSCCH配置参数(sl-PSCCH-Config)；
物理侧行共享信道PSSCH配置参数(sl-PSSCH-Config)；
物理侧行反馈信道PSFCH配置参数(sl-PSFCH-Config)；
每个子信道的物理资源块PRB个数(sl-SubchannelSize)；
索引最低的子信道的PRB的起点(sl-StartRB-Subchannel)；
子信道个数(sl-NumSubchannel)；
通过第二传输模式进行资源选择的配置参数(sl-UE-SelectedConfigRP)；
PRB个数(sl-RB-Number)；
时隙个数(sl-TimeResource)。
其中通过第二传输模式进行资源选取的配置参数包括上文TxPoolSelectedNormal中指示的每个发送资源池的配置参数，具体可参见上文，此处不再赘述。
一种可能的情况，第二设备可以将用于向第一设备发送数据的至少一个发送资源池的时域、频域和信道侦听相关的配置参数，通过PC5RRC信令发送给第一设备，配置参数包括以下参数：sl-PSCCH-Config、sl-PSSCH-Config、sl-PSFCH-Config、sl-SubchannelSize、sl-StartRB-Subchannel、sl-NumSubchannel、sl-UE-SelectedConfigRP、sl-RB-Number、sl-TimeResource-r16。该情况下，第二设备需要为每一个发送资源池重新设定相应的索引。
一种可能的情况，第二设备可以将用于向第一设备发送数据的至少一个发送资源池的至少以下参数：sl-UE-SelectedConfigRP、sl-TimeResource，发送给第一设备。该情况下，第一设备可以根据第一设备的接收资源池，确定第二设备发送资源池内的PSCCH/PSSCH/PSFCH以及频域配置，即第一设备认为第一设备的接收资源池与第二设备的发送资源池的PSCCH/PSSCH/PSFCH以及频域配置相同。可选的，上述第一设备的接收资源池是指第一设备接收PC5RRC信令的接收资源池。
一种可能的情况，第二设备可以将用于向第一设备发送数据的至少一个发送资源池的至少以下参数：sl-UE-SelectedConfigRP，发送给第一设备。该情况下，第一设备可以根据第一设备的接收资源池确定第二设备发送资源池内的PSCCH/PSSCH/PSFCH、频域配置以及时域配置，即第一设备认为第一设备的接收资源池与第二设备的发送资源池的PSCCH/PSSCH/PSFCH、频域配置以及时域配置相同。可选的，上述的第一设备的接收资源池是指第一设备接收PC5RRC信令的接收资源池。
上述实施例示出了一种参考资源的确定方法，第一设备接收第二设备发送的第二信令，根据第二信令确定第二设备使用的至少一个发送资源池，并在第二设备使用的至少一个发送资源池内进行信道侦听，确定第二设备的参考资源信息。上述方法有效实现基于终端之间协调的资源选取，可提升侧行通信的整体性能。
图10为本申请实施例提供的参考资源的确定方法的交互示意图三，如图10所示，本实施例的参考资源的确定方法，包括如下几个步骤：
步骤301、第一设备通过资源池的配置信令确定第二设备的参考资源信息。
步骤302、第一设备向第二设备发送参考资源信息。(可选)
步骤303、第二设备根据参考资源信息进行资源选取。(可选)
本实施例的一个可选实施例中，资源池的配置信令可以是资源池的网络配置信令。即第一设备通过接收来自网络设备的资源池的配置信令，根据来自网络设备的资源池的配置信令确定第二设备使用的至少一个发送资源池，并在第二设备使用的至少一个发送资源池内进行信道侦听，确定第二设备的参考资源信息。
可选的，网络配置信令包括第一设备的至少一个接收资源池的配置参数。
可选的，第一设备的至少一个接收资源池的配置参数包括以下参数的至少一项：
与每个接收资源池对应的至少一个发送资源池的索引；
每个发送资源池包含的时隙个数；
每个发送资源池内通过第二传输模式进行资源选择的配置参数。
本实施例中，资源池的网络配置信令包括发送资源池的网络配置和/或接收资源池的网络配置。不同设备的资源池的网络配置可以相同也可以不同。
一种情况下，如果第二设备的一个发送资源池允许通过设备间协调的方式进行资源选取，则该发送资源池的配置中应指明该发送资源池在第一设备的接收资源池中的索引。
另一种情况下，在第一设备的接收资源池中，如果与该接收资源池对应的至少一个发送资源池为允许通过设备间协调的方式进行资源选取的发送资源池，则该接收资源池的配置中应指明每一个发送资源池的索引，每个发送资源池包含的时隙，以及每个发送资源池内信道侦听的相关配置参数。例如，上述发送资源池的配置包括发送资源池的索引，参数sl-UE-SelectedConfigRP以及sl-TimeResource；或者，仅包括发送资源池的索引以及参数sl-UE-SelectedConfigRP。
可选的，上述与每个接收资源池对应的至少一个发送资源池包括第二设备的发送资源池。
本实施例的一个可选实施例中，资源池的配置信令可以是资源池的预配置信令。即第二设备通过预配置信令确定第二设备使用的至少一个发送资源池，并在第二设备使用的至少一个发送资源池内进行信道侦听，确定第二设备的参考资源信息。
可选的，预配置信令包括第一设备和/或第二设备使用的发送资源集合，第一设备使用的发送资源集合与第二设备使用的发送资源集合相同。
本实施例中，资源池的预配置信令包括发送资源池的预配置信息和/或接收资源池的预配置信息。通常情况下，不同设备的资源池的预配置信息相同。资源池的预配置信息与资源池的网络配置信息类似，具体可参见上述资源池的网络配置参数。
上述实施例示出了一种参考资源的确定方法，第一设备通过资源池的配置信令确定第二设备的参考资源信息，其中资源池的配置信令可以是网络配置信令或预配置信令。具体的，第二设备可根据资源池的配置信令确定第二设备使用的至少一个发送资源池，并在第二设备使用的至少一个发送资源池内进行信道侦听，确定第二设备的参考资源信息。上述方法有效实现基于终端之间协调的资源选取，可提升侧行通信的整体性能。
图11为本申请实施例提供的参考资源的确定方法的交互示意图四，如图11所示，本实施例的参考资源的确定方法，包括如下几个步骤：
步骤401、第一设备通过来自第二设备的第三信令确定第二设备的参考资源信息。
步骤402、第一设备向第二设备发送参考资源信息。(可选)
步骤403、第二设备根据参考资源信息进行资源选取。(可选)
本实施例中，第三信令用于触发第一设备向第二设备发送参考资源信息。
可选的，第三信令包括用于指示第二设备的至少一个发送资源池的索引。具体的，第二设备应在发送给第一设备的第三信令中指示第二设备使用的至少一个发送资源池的索引，进而第一设备可以在第二设备指示的至少一个发送资源池中根据信道侦听结果进行资源排除，确定第二设备的参考资源信息。其中，第三信令中指示的第二设备的至少一个发送资源池可以是预配置的发送资源池。
上述实施例示出了一种参考资源的确定方法，第一设备接收第二设备发送的触发信令，根据触发信令确定第二设备使用的至少一个发送资源池，并在第二设备使用的至少一个发送资源池内进行信道侦听，确定第二设备的参考资源信息。上述方法有效实现基于终端之间协调的资源选取，可提升侧行通信的整体性能。
基于上述几个实施例，下面结合第一设备和第二设备所在位置，第一设备可选择不同的参考资源的确定方法为第二设备确定参考资源信息。
在本申请的一个可选实施例中，如果第一设备和第二设备在同一小区覆盖范围内，第一设备可通过来自第二设备的第二信令和/或资源池的网络配置信令，确定第二设备的参考资源信息。
在本申请的一个可选实施例中，如果第一设备在小区覆盖范围外而第二设备在小区覆盖内，第一设备可通过来自第二设备的第二信令和/或资源池的网络配置信令，确定第二设备的参考资源信息。
在本申请的一个可选实施例中，如果第一设备和第二设备分别位于不同的小区覆盖范围内，第一设备可通过来自第二设备的第二信令和/或资源池的网络配置信令，确定第二设备的参考资源信息。
在本申请的一个可选实施例中，如果第一设备在小区覆盖范围内而第二设备在小区覆盖范围外，第一设备可通过资源池的预配置信令，确定第二设备的参考资源信息。
在本申请的一个可选实施例中，如果第一设备和第二设备均位于小区的覆盖范围外，第一设备可通过资源池的预配置信令，确定第二设备的参考资源信息。
对于上述的最后两个实施例，由于第一设备和第二设备具有相同的资源池的预配置信息，因此第一设备和第二设备之间无需进行信令交互，第一设备可以通过资源池的预配置信令确定适合和/或不适合第二设备使用的参考资源集合。
图12为本申请实施例提供的参考资源的确定装置的结构示意图，如图12所示，本实施例的参考资源的确定装置500，包括：处理模块501和发送模块502。
处理模块501，用于通过第一信令确定第二设备的参考资源信息，所述第一信令用于指示第一设备和/或所述第二设备用于侧行传输的第一资源集合，所述参考资源信息用于辅助所述第二设备进行侧行传输的资源选取。
在本申请的一个可选实施例中，所述参考资源信息包括参考资源集合，所述参考资源集合是所述第一设备通过对所述第一资源集合进行信道侦听确定的。
在本申请的一个可选实施例中，所述第一信令包括以下信令的至少一项：来自所述第二设备的第二信令；网络配置信令；预配置信令；来自所述第二设备的第三信令；
其中，所述第二信令用于指示所述第二设备使用的至少一个发送资源池；所述网络配置信令和所述预配置信令均用于指示所述第一设备和/或所述第二设备用于侧行传输的第一资源集合；所述第三信令用于触发所述第一设备向所述第二设备发送所述参考资源信息。
在本申请的一个可选实施例中，所述第二信令为PC5无线资源控制RRC信令。
在本申请的一个可选实施例中，所述第二设备使用的至少一个发送资源池包括网络配置或预配置给所述第二设备的发送资源池。
在本申请的一个可选实施例中，所述第二设备使用的至少一个发送资源池包括在网络配置或预配置给所述第二设备的且允许设备之间进行资源协调的发送资源池。
在本申请的一个可选实施例中，所述第二信令包括所述第二设备使用的至少一个发送资源池的如下参数的至少一项：
物理侧行控制信道PSCCH配置参数，物理侧行共享信道PSSCH配置参数，物理侧行反馈信道PSFCH配置参数，每个子信道的物理资源块PRB个数，索引最低的子信道的PRB的起点，子信道个数，通过第二传输模式进行资源选择的配置参数，PRB个数，时隙个数。
在本申请的一个可选实施例中，所述网络配置信令包括所述第一设备的至少一个接收资源池的配置参数。
在本申请的一个可选实施例中，所述第一设备的至少一个接收资源池的配置参数包括以下参数的至少一项：
与每个接收资源池对应的至少一个发送资源池的索引；每个发送资源池包含的时隙个数；每个发送资源池内通过第二传输模式进行资源选择的配置参数。
在本申请的一个可选实施例中，所述与每个接收资源池对应的至少一个发送资源池包括所述第二设备的发送资源池。
在本申请的一个可选实施例中，所述预配置信令包括所述第一设备和/或所述第二设备使用的发送资源集合，所述第一设备使用的发送资源集合与所述第二设备使用的发送资源集合相同。
在本申请的一个可选实施例中，所述第三信令包括用于指示所述第二设备的至少一个发送资源池的索引。
在本申请的一个可选实施例中，所述第一资源集合包括以下发送资源池的至少一项：
所述第二设备指示的所有发送资源池；或者
网络配置的所述第一设备的接收资源池中包含的所有允许设备之间进行资源协调的发送资源池；或者
预配置的所述第一设备的接收资源池中包含的所有允许设备之间进行资源协调的发送资源池。
在本申请的一个可选实施例中，所述参考资源信息包括适合或不适合所述第二设备进行侧行传输的至少一个发送资源池。
在本申请的一个可选实施例中，所述发送模块502，用于向所述第二设备发送所述参考资源信息；所述参考资源信息包括参考资源集合以及所述参考资源集合中的至少一个发送资源池的索引。
本申请实施例提供的参考资源的确定装置，用于执行前述方法实施例中的第一设备执行的技术方案，其实现原理和技术效果类似，在此不再赘述。
需要说明的是，应理解上述参考资源的确定装置的各个模块的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分模块通过处理元件调用软件的形式实现，部分模块通过硬件的形式实现。例如，处理模块可以为单独设立的处理元件，也可以集成在上述装置的某一个芯片中实现，此外，也可以以程序代码的形式存储于上述装置的存储器中，由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如，以上这些模块可以是被配置成实施以上方法的至少一个集成电路，例如：至少一个特定集成电路(application specific integrated circuit，ASIC)，或，至少一个微处理器 (digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(central processing unit，CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括至少一个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含至少一个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘solid state disk(SSD))等。
图13为本申请实施例提供的电子设备的硬件结构示意图，如图13所示，本实施例提供的电子设备600，包括：收发器601、处理器602、存储器603；
所述存储器603存储计算机执行指令；
所述处理器602执行所述存储器603存储的计算机执行指令，使得所述处理器602执行如前述任一方法实施例中第一设备的技术方案。
可选的，存储器603既可以是独立的，也可以跟处理器602集成在一起。当所述存储器603是独立于处理器602之外的器件时，所述电子设备600还可以包括：总线604，用于连接所述存储器603和处理器602。
可选的，处理器602可以为芯片。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机执行指令，当所述计算机执行指令被处理器执行时用于实现前述任一方法实施例中第一设备的技术方案。
本申请实施例还提供一种计算机程序，当该计算机程序被处理器执行时，用于执行前述任一方法实施例中第一设备的技术方案。
本申请实施例还提供一种计算机程序产品，包括程序指令，程序指令用于实现前述任一方法实施例中第一设备的技术方案。
本申请实施例还提供了一种芯片，包括：处理模块与通信接口，该处理模块能执行前述方法实施例中第一设备的技术方案。
可选的，该芯片还包括存储模块(如，存储器)，存储模块用于存储指令，处理模块用于执行存储模块存储的指令，并且对存储模块中存储的指令的执行使得处理模块执行前述任一方法实施例中第一设备的技术方案。
本申请中，“至少两个”是指两个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系；在公式中，字符“/”，表示前后关联对象是一种“相除”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一 项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中，a，b，c可以是单个，也可以是多个。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。
可以理解的是，在本申请的实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请的实施例的实施过程构成任何限定。

Claims (33)

  1. 一种参考资源的确定方法，其特征在于，包括：
    第一设备通过第一信令确定第二设备的参考资源信息，所述第一信令用于指示所述第一设备和/或所述第二设备用于侧行传输的第一资源集合，所述参考资源信息用于辅助所述第二设备进行侧行传输的资源选取。
  2. 根据权利要求1所述的方法，其特征在于，所述参考资源信息包括参考资源集合，所述参考资源集合是所述第一设备通过对所述第一资源集合进行信道侦听确定的。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一信令包括以下信令的至少一项：来自所述第二设备的第二信令；网络配置信令；预配置信令；来自所述第二设备的第三信令；
    其中，所述第二信令用于指示所述第二设备使用的至少一个发送资源池；所述网络配置信令和所述预配置信令均用于指示所述第一设备和/或所述第二设备用于侧行传输的第一资源集合；所述第三信令用于触发所述第一设备向所述第二设备发送所述参考资源信息。
  4. 根据权利要求3所述的方法，其特征在于，所述第二信令为PC5无线资源控制RRC信令。
  5. 根据权利要求3或4所述的方法，其特征在于，所述第二设备使用的至少一个发送资源池包括网络配置或预配置给所述第二设备的发送资源池。
  6. 根据权利要求5所述的方法，其特征在于，所述第二设备使用的至少一个发送资源池包括在网络配置或预配置给所述第二设备的且允许设备之间进行资源协调的发送资源池。
  7. 根据权利要求3-6中任一项所述的方法，其特征在于，所述第二信令包括所述第二设备使用的至少一个发送资源池的如下参数的至少一项：
    物理侧行控制信道PSCCH配置参数，物理侧行共享信道PSSCH配置参数，物理侧行反馈信道PSFCH配置参数，每个子信道的物理资源块PRB个数，索引最低的子信道的PRB的起点，子信道个数，通过第二传输模式进行资源选择的配置参数，PRB个数，时隙个数。
  8. 根据权利要求3所述的方法，其特征在于，所述网络配置信令包括所述第一设备的至少一个接收资源池的配置参数。
  9. 根据权利要求8所述的方法，其特征在于，所述第一设备的至少一个接收资源池的配置参数包括以下参数的至少一项：
    与每个接收资源池对应的至少一个发送资源池的索引，每个发送资源池包含的时隙个数，每个发送资源池内通过第二传输模式进行资源选择的配置参数。
  10. 根据权利要求9所述的方法，其特征在于，所述与每个接收资源池对应的至少一个发送资源池包括所述第二设备的发送资源池。
  11. 根据权利要求3所述的方法，其特征在于，所述预配置信令包括所述第一设备和/或所述第二设备使用的发送资源集合，所述第一设备使用的发送资源集合与所述第二设备使用的发送资源集合相同。
  12. 根据权利要求3所述的方法，其特征在于，所述第三信令包括用于指示所述第二设备的至少一个发送资源池的索引。
  13. 根据权利要求1-12任一项所述的方法，其特征在于，所述第一资源集合包括以下发送资源池的至少一项：
    所述第二设备指示的所有发送资源池；或者
    网络配置的所述第一设备的接收资源池中包含的所有允许设备之间进行资源协调的发送资源池；或者
    预配置的所述第一设备的接收资源池中包含的所有允许设备之间进行资源协调的发送资源池。
  14. 根据权利要求1-13中任一项所述的方法，其特征在于，所述参考资源信息包括适合或不适合所述第二设备进行侧行传输的至少一个发送资源池。
  15. 根据权利要求1-14中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一设备向所述第二设备发送所述参考资源信息；所述参考资源信息包括参考资源集合以及所述参考资源集合中的至少一个发送资源池的索引。
  16. 一种参考资源的确定装置，其特征在于，包括：
    处理模块，用于通过第一信令确定第二设备的参考资源信息，所述第一信令用于指示第一设备和/或所述第二设备用于侧行传输的第一资源集合，所述参考资源信息用于辅助所述第二设备进行侧行传输的资源选取。
  17. 根据权利要求16所述的装置，其特征在于，所述参考资源信息包括参考资源集合，所述参考资源集合是所述第一设备通过对所述第一资源集合进行信道侦听确定的。
  18. 根据权利要求16或17所述的装置，其特征在于，所述第一信令包括以下信令的至少一项：来自所述第二设备的第二信令；网络配置信令；预配置信令；来自所述第二设备的第三信令；
    其中，所述第二信令用于指示所述第二设备使用的至少一个发送资源池；所述网络配置信令和所述预配置信令均用于指示所述第一设备和/或所述第二设备用于侧行传输的第一资源集合；所述第三信令用于触发所述第一设备向所述第二设备发送所述参考资源信息。
  19. 根据权利要求18所述的装置，其特征在于，所述第二信令为PC5无线资源控制RRC信令。
  20. 根据权利要求18或19所述的装置，其特征在于，所述第二设备使用的至少一个发送资源池包括网络配置或预配置给所述第二设备的发送资源池。
  21. 根据权利要求20所述的装置，其特征在于，所述第二设备使用的至少一个发送资源池包括在网络配置或预配置给所述第二设备的且允许设备之间进行资源协调的发送资源池。
  22. 根据权利要求18-21中任一项所述的装置，其特征在于，所述第二信令包括所述第二设备使用的至少一个发送资源池的如下参数的至少一项：
    物理侧行控制信道PSCCH配置参数，物理侧行共享信道PSSCH配置参数，物理侧行反馈信道PSFCH配置参数，每个子信道的物理资源块PRB个数，索引最低的子信道的PRB的起点，子信道个数，通过第二传输模式进行资源选择的配置参数，PRB个数，时隙个数。
  23. 根据权利要求18所述的装置，其特征在于，所述网络配置信令包括所述第一设备的至少一个接收资源池的配置参数。
  24. 根据权利要求23所述的装置，其特征在于，所述第一设备的至少一个接收资源池的配置参数包括以下参数的至少一项：
    与每个接收资源池对应的至少一个发送资源池的索引；每个发送资源池包含的时隙个数；每个发送资源池内通过第二传输模式进行资源选择的配置参数。
  25. 根据权利要求24所述的装置，其特征在于，所述与每个接收资源池对应的至少一个发送资源池包括所述第二设备的发送资源池。
  26. 根据权利要求18所述的装置，其特征在于，所述预配置信令包括所述第一设备和/或所述第二设备使用的发送资源集合，所述第一设备使用的发送资源集合与所述第二设备使用的发送资源集合相同。
  27. 根据权利要求18所述的装置，其特征在于，所述第三信令包括用于指示所述第二设备的至少一个发送资源池的索引。
  28. 根据权利要求16-27任一项所述的装置，其特征在于，所述第一资源集合包括以下发送资源池的至少一项：
    所述第二设备指示的所有发送资源池；或者
    网络配置的所述第一设备的接收资源池中包含的所有允许设备之间进行资源协调的发送资源池；或者
    预配置的所述第一设备的接收资源池中包含的所有允许设备之间进行资源协调的发送资源池。
  29. 根据权利要求16-28中任一项所述的装置，其特征在于，所述参考资源信息包括适合或不适合所述第二设备进行侧行传输的至少一个发送资源池。
  30. 根据权利要求16-29中任一项所述的装置，其特征在于，所述装置还包括：发送模块；所述发送模块，用于向所述第二设备发送所述参考资源信息；所述参考资源信息包括参考资源集合以及所述参考资源集合中的至少一个发送资源池的索引。
  31. 一种电子设备，其特征在于，包括：
    收发器、处理器、存储器；
    所述存储器存储计算机执行指令；
    所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执行如权利要求1-15中任一项所述的方法。
  32. 一种计算机存储介质，其特征在于，用于存储计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1-15中任一项所述的方法。
  33. 一种计算机程序产品，其特征在于，当所述计算机程序产品在计算机上运行时，使得所述计算机执行如权利要求1-15中任一项所述的方法。
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