WO2022027463A1 - 节能的方法及设备 - Google Patents

节能的方法及设备 Download PDF

Info

Publication number
WO2022027463A1
WO2022027463A1 PCT/CN2020/107462 CN2020107462W WO2022027463A1 WO 2022027463 A1 WO2022027463 A1 WO 2022027463A1 CN 2020107462 W CN2020107462 W CN 2020107462W WO 2022027463 A1 WO2022027463 A1 WO 2022027463A1
Authority
WO
WIPO (PCT)
Prior art keywords
sci
order
time unit
pscch
pssch
Prior art date
Application number
PCT/CN2020/107462
Other languages
English (en)
French (fr)
Inventor
赵振山
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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/CN2020/107462 priority Critical patent/WO2022027463A1/zh
Priority to CN202080101198.6A priority patent/CN115669093A/zh
Publication of WO2022027463A1 publication Critical patent/WO2022027463A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the field of communications, and more particularly, to a method and device for energy saving.
  • the originator introduces a pre-emption mechanism and a re-evaluation mechanism, even if the originating device selects transmission resources and The transmission resource is reserved through the Sidelink Control Information (SCI) instruction, and the originating device also needs to judge whether the selected resource can be used for data transmission according to the listening. If the pre-emption condition is met, the originating device will re-run Choose a resource.
  • SCI Sidelink Control Information
  • the receiving end device even if it receives the SCI sent by the sending end device, it can know the transmission resource information reserved by the sending end device, but since the sending end device may reselect resources, the receiving end device needs to detect the physical Sidelink Control Channel (Physical Sidelink Control Channel, PSCCH), so as to avoid the data of the sending end device being missed by the receiving end device due to the reselection of resources by the sending end device.
  • PSCCH Physical Sidelink Control Channel
  • the energy consumption will be too large, which is not conducive to the energy saving requirement of the terminal.
  • PSSCH Physical Sidelink Shared Channel
  • the receiving end device Before decoding the second-order SCI, the receiving end device cannot determine whether the current time slot has a PSSCH that it needs to receive, so it will continue to receive data, but if there is no receive data in the time slot If the end device needs to receive the PSSCH, the data received by the end device is useless, which will also cause waste of energy consumption of the end device.
  • the embodiments of the present application provide a method and device for energy saving, which can realize energy saving of a terminal.
  • a method for energy saving comprising:
  • the originating device sends a first PSCCH on a first time unit and sends a first PSSCH on a second time unit, where the first PSSCH is scheduled by the first PSCCH.
  • a method for energy saving comprising:
  • the receiving end device receives the first PSCCH on the first time unit and receives the first PSSCH on the second time unit, where the first PSSCH is scheduled by the first PSCCH.
  • a method for energy saving comprising:
  • the originating device sends the first-order SCI and the second-order SCI on the first time unit,
  • the first-order SCI is carried in the PSCCH, the second-order SCI occupies PSSCH resources, and the second-order SCI is mapped from the second side row symbol of the first time unit, wherein the PSSCH is derived from the PSCCH Scheduled.
  • a method for energy saving comprising:
  • the receiving device receives the first-order SCI and the second-order SCI on the first time unit,
  • the first-order SCI is carried in the PSCCH, the second-order SCI occupies PSSCH resources, and the second-order SCI is mapped from the second side row symbol of the first time unit, wherein the PSSCH is derived from the PSCCH Scheduled.
  • a method for energy saving comprising:
  • the originating device sends the first-order SCI and the second-order SCI on the first time unit,
  • the first-order SCI is carried in the PSCCH, the second-order SCI occupies PSSCH resources, and the first-order SCI includes indication information, which is used to indicate the first time-domain symbol of the second-order SCI transmission resource where the PSSCH is scheduled by the PSCCH.
  • a method for energy saving comprising:
  • the receiving end device receives the first-order SCI on the first time unit, wherein the first-order SCI is carried in the PSCCH and the first-order SCI includes indication information, and the indication information is used to indicate that the second-order SCI is at the first time
  • the second-order SCI occupies PSSCH resources, where the PSSCH is scheduled by the PSCCH;
  • the receiving device receives the second-order SCI on the first time unit according to the indication information.
  • an originating device for executing the method in the above-mentioned first aspect.
  • the originating device includes a functional module for executing the method in the first aspect above.
  • a receiving end device is provided for performing the method in the second aspect.
  • the receiving end device includes a functional module for executing the method in the second aspect above.
  • an originating device is provided for performing the method in the third aspect.
  • the originating device includes a functional module for executing the method in the third aspect.
  • a receiving end device is provided for performing the method in the fourth aspect.
  • the receiving end device includes a functional module for executing the method in the fourth aspect above.
  • an originating device is provided for executing the method in the fifth aspect.
  • the originating device includes functional modules for executing the method in the fifth aspect.
  • a twelfth aspect provides a receiving end device for performing the method in the sixth aspect.
  • the receiving end device includes a functional module for executing the method in the sixth aspect.
  • a thirteenth aspect provides an originating device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.
  • a fourteenth aspect provides a receiving end device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect.
  • a fifteenth aspect provides an originating device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the third aspect.
  • a sixteenth aspect provides a receiving end device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the fourth aspect.
  • an originating device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and execute the computer program stored in the memory to execute the method in the fifth aspect.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the sixth aspect.
  • a nineteenth aspect provides an apparatus for implementing the method in any one of the above-mentioned first to sixth aspects.
  • the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device in which the apparatus is installed executes the method in any one of the above-mentioned first to sixth aspects.
  • a twentieth aspect provides a computer-readable storage medium for storing a computer program, the computer program causing a computer to perform the method in any one of the first to sixth aspects above.
  • a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of the above-mentioned first to sixth aspects.
  • a twenty-second aspect provides a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-mentioned first to sixth aspects.
  • the first PSCCH schedules the first PSSCH across time slots, and the receiving end device only needs to receive the data on the symbol where the first PSCCH is located in the first time unit, and does not need to receive The data on the remaining symbols in the first time unit can thus achieve the purpose of saving power of the terminal.
  • the second-order SCI is mapped from the second side-line symbol of the first time unit, and the receiving end device can detect the second-order SCI as early as possible, so that the second-order SCI can be detected based on the second-order SCI.
  • the target identification information in the SCI determines whether the sideline data is sent to the receiving end device, so as to avoid unnecessary data reception and achieve the purpose of saving the power of the terminal.
  • the originating device indicates the position of the first time-domain symbol of the second-order SCI transmission resource in the first-order SCI, so that the receiving device can accurately receive the second-order SCI, To achieve the purpose of terminal power saving.
  • FIG. 1 is a schematic diagram of inbound communication within a network coverage provided by the present application.
  • FIG. 2 is a schematic diagram of a partial network coverage sideline communication provided by the present application.
  • FIG. 3 is a schematic diagram of a network coverage outer row communication provided by the present application.
  • FIG. 4 is a schematic diagram of a unicast sideline communication provided by the present application.
  • FIG. 5 is a schematic diagram of a multicast sideline communication provided by the present application.
  • FIG. 6 is a schematic diagram of a broadcast sideline communication provided by the present application.
  • FIG. 7 is a schematic diagram of PSCCH and PSSCH multiplexing provided by the present application.
  • FIG. 8 is a schematic diagram of a PSCCH and PSSCH frame structure provided by the present application.
  • FIG. 9 is a schematic diagram of a transmission resource reservation for the same TB and resource reservation for different TBs provided by the present application.
  • FIG. 10 is a schematic diagram of a re-evaluation mechanism provided by the present application.
  • FIG. 11 is a schematic diagram of a pre-preemption mechanism provided by the present application.
  • FIG. 12 is a schematic flowchart of a method for energy saving according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of a PSCCH detection time provided according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of a cross-slot scheduling provided according to an embodiment of the present application.
  • FIG. 15 is a schematic diagram of another cross-slot scheduling provided according to an embodiment of the present application.
  • FIG. 16 is a schematic diagram of yet another cross-slot scheduling provided according to an embodiment of the present application.
  • FIG. 17 is a schematic flowchart of another energy saving method provided according to an embodiment of the present application.
  • FIG. 18 is a schematic diagram of a second-order SCI detection time provided according to an embodiment of the present application.
  • FIG. 19 is a schematic diagram of another second-order SCI detection time provided according to an embodiment of the present application.
  • FIG. 20 is a schematic flowchart of still another energy saving method according to an embodiment of the present application.
  • FIG. 21 is a schematic block diagram of an originating device according to an embodiment of the present application.
  • FIG. 22 is a schematic block diagram of a receiving end device provided according to an embodiment of the present application.
  • FIG. 23 is a schematic block diagram of still another originating device provided according to an embodiment of the present application.
  • FIG. 24 is a schematic block diagram of still another receiving end device provided according to an embodiment of the present application.
  • FIG. 25 is a schematic block diagram of still another originating device provided according to an embodiment of the present application.
  • FIG. 26 is a schematic block diagram of still another receiving end device provided according to an embodiment of the present application.
  • FIG. 27 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • FIG. 28 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • FIG. 29 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wireless Fidelity Wireless Fidelity
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device can be a station (STATION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • augmented reality (Augmented Reality, AR) terminal Equipment wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
  • the network device may also be a base station set in a location such as land or water.
  • a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
  • Pico cell Femto cell (Femto cell), etc.
  • These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
  • the sideline communication according to the network coverage of the communicating terminal, it can be divided into network coverage innerline communication, as shown in Figure 1; part of the network coverage sideline communication, as shown in Figure 2 ; and network coverage outside the line communication, as shown in Figure 3.
  • Figure 1 In the network coverage of the uplink communication, all the terminals performing the sidelink communication are within the coverage of the same base station. Therefore, the above-mentioned terminals can receive the configuration signaling of the base station and perform the sidelink based on the same sidelink configuration. communication.
  • FIG. 2 In the case of partial network coverage of sideline communication, some terminals performing sideline communication are located within the coverage of the base station, and these terminals can receive the configuration signaling of the base station, and perform sideline communication according to the configuration of the base station.
  • the terminal outside the network coverage cannot receive the configuration signaling of the base station.
  • the terminal outside the network coverage will use the pre-configuration information and the physical The information carried in the sideline broadcast channel (Physical Sidelink Broadcast Channel, PSBCH) determines the sideline configuration and performs sideline communication.
  • PSBCH Physical Sidelink Broadcast Channel
  • Figure 3 For communication outside the network coverage, all the terminals performing the lateral communication are located outside the coverage of the network, and all the terminals determine the lateral configuration according to the pre-configuration information to perform the lateral communication.
  • device-to-device communication is based on a sidelink (Sidelink, SL) transmission technology based on device to device (D2D), and the communication data in the traditional cellular system is received or sent by the base station Different ways, so it has higher spectral efficiency and lower transmission delay.
  • the Internet of Vehicles system adopts the method of terminal-to-terminal direct communication. Two transmission modes are defined in 3GPP, which are respectively recorded as Mode A and Mode B. The embodiments of the present application may be applied to Mode A and/or Mode B.
  • Mode A The transmission resources of the terminal are allocated by the base station, and the terminal sends data 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, or can allocate semi-static transmission to the terminal. resource. As shown in FIG. 1 , the terminal is located within the coverage of the network, and the network allocates transmission resources for sideline transmission to the terminal.
  • Mode B The terminal selects a resource in the resource pool for data transmission. As shown in Figure 3, the terminal is located outside the coverage of the cell, and the terminal autonomously selects transmission resources from the preconfigured resource pool for sideline transmission; or, as shown in Figure 1, the terminal autonomously selects transmission resources from the resource pool configured by the network Perform side-by-side transfers.
  • users may be in a mixed mode, that is, they can use mode A to acquire resources, and they can use mode B to acquire resources at the same time.
  • LTE-V2X Long Term Evolution Vehicle to Everything
  • NR-V2X the unicast and multicast transmission modes are introduced.
  • unicast transmission there is only one terminal at the receiving end.
  • unicast transmission is performed between UE1 and UE2;
  • the receiving end is all terminals in a communication group, or at a certain All terminals within the transmission distance, as shown in Figure 5, UE1, UE2, UE3 and UE4 form a communication group, in which UE1 sends data, and other terminal devices in this group are receiver terminals;
  • the terminal is any terminal around the transmitting terminal.
  • UE1 is the transmitting terminal, and other terminals around it, UE2-UE6, are all receiving terminals.
  • a resource pool is introduced into the sideline transmission system.
  • the so-called resource pool is a collection of transmission resources. Whether it is a transmission resource configured by a network or a transmission resource independently selected by a terminal, it is a resource in the resource pool.
  • Resource pools can be configured through pre-configuration or network configuration, and one or more resource pools can be configured.
  • the resource pool is further divided into a sending resource pool and a receiving resource pool.
  • the sending resource pool is that the transmission resources in the resource pool are used for sending sideline data; the receiving resource pool is that the terminal receives the sideline data on the transmission resources in the resource pool.
  • PSCCH and its scheduled PSSCH are transmitted in the same subframe, but they are multiplexed by Frequency-division multiplexing (FDM), that is, PSCCH and its associated PSSCH occupy different physical resource blocks (physical resource block, PRB).
  • FDM Frequency-division multiplexing
  • PRB physical resource block
  • the frequency domain resource allocation of PSSCH is based on sub-channel (sub-channel) granularity, and a sub-channel includes N1 consecutive PRBs. The number of channels is determined. The starting positions of the PSSCH and its associated PSCCH in the frequency domain are aligned.
  • the PSCCH is transmitted in the first subchannel of the PSSCH, occupying N2 (N2 ⁇ N1) PRBs in the subchannel, where N1 and N2 are configurable
  • the value range of N1 is ⁇ 10, 12, 15, 20, 25, 50, 75, 100 ⁇
  • the value range of N2 is ⁇ 10, 12, 15, 20, 25 ⁇ .
  • the PSSCH and its associated PSCCH are transmitted in the same time slot, the PSCCH occupies 2 or 3 time domain symbols, and the PSCCH starts from the second symbol of the time slot (the first symbol Usually used as automatic gain control (Auto gain control, AGC), the last symbol pass is used as a guard interval (Guard Period, GP)).
  • AGC automatic gain control
  • Guard Period Guard Period
  • 2-order SCI is introduced in NR-V2X, and the first-order SCI is carried in PSCCH, which is used to indicate PSSCH transmission resources, reserved resource information, modulation and coding scheme (Modulation and Coding Scheme, MCS) level, priority and other information
  • the second-order SCI is sent in the PSSCH resource, and demodulated using the PSSCH demodulation reference signal (Demodulation Reference Signal, DMRS), which is used to indicate the source (Source) identification (Identity, ID), destination (Destination) ID, mixed Information used for data demodulation, such as an automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) ID, a new data indicator (New Data Indicator, NDI).
  • DMRS PSSCH demodulation Reference Signal
  • the second-order SCI starts mapping from the first DMRS symbol of PSSCH, first in the frequency domain and then in the time domain.
  • PSCCH occupies 3 symbols (symbol 1, symbol 2, and symbol 3), and the DMRS of PSSCH occupies symbols 4.
  • Symbol 11 the second-order SCI is mapped from symbol 4, and is frequency-division multiplexed with DMRS on symbol 4.
  • the second-order SCI is mapped to symbol 4, symbol 5, and symbol 6.
  • the size of the resources occupied by the second-order SCI depends on The number of bits in the second-order SCI.
  • NR-V2X when the terminal selects transmission resources for data transmission, it can select multiple transmission resources.
  • the multiple transmission resources are used for the first transmission and retransmission of data.
  • the terminal can indicate the reserved resources in the SCI to avoid Other terminals use this resource.
  • resource reservation for retransmission for the same transport block (Transport block, TB) is supported and resource reservation for different TBs is also supported.
  • the sideline control information (SCI 1-A) sent by the terminal indicating one TB transmission includes the fields of "time resource assignment (time resource assignment)" and "frequency resource assignment (frequency resource assignment)".
  • the individual field indicates the N time-frequency resources (including the resources used for current transmission) for the current transmission and retransmission of the TB.
  • Nmax is equal to 2 or 3.
  • LTE-V2X when a terminal selects transmission resources, it will send data on these resources. However, there may be two terminals that select the same transmission resources. At this time, resource conflicts will occur and system performance will be reduced. In order to solve this problem , In NR-V2X, the pre-emption and re-evaluation mechanisms are introduced, so that the terminal can judge whether there is a resource conflict with other terminals before using the selected resource. If there is no conflict, it can continue to use If there is a resource conflict in the selected transmission resource, avoidance and resource reselection need to be performed according to the corresponding mechanism to avoid resource conflict.
  • NR-V2X supports a re-evaluation mechanism. After the terminal completes resource selection, resources that have been selected but not indicated by sending sideline control information may still be reserved by other terminals with burst aperiodic services, resulting in resource collision. In response to this problem, a re-evaluation mechanism is proposed, that is, the terminal continues to listen to the sideline control information after completing the resource selection, and re-evaluates the selected but not indicated resources at least once.
  • resources w, x, y, z, and v are time-frequency resources that have been selected by the terminal, and resource x is located in time slot m.
  • resources y and z that the terminal will send the sideline control information for the first time in resource x (resource x has been indicated by the sideline control information in resource w before).
  • the terminal performs resource listening at least once in time slot mT3 , that is, determines a resource selection window and a listening window, and excludes resources in the resource selection window to obtain a candidate resource set.
  • the terminal If resource y or z is not in the candidate resource set, the terminal reselects the time-frequency resources in resources y and z that are not in the candidate resource set, and can also reselect any resource that has been selected but not indicated by sending sideline control information, for example Any number of resources y, z, and v.
  • the above T3 depends on the processing capability of the terminal.
  • NR-V2X supports a pre-emption mechanism, that is, a resource preemption mechanism.
  • a resource preemption mechanism that is, a resource preemption mechanism.
  • the conclusions about the pre-emption mechanism are all described from the perspective of the preempted terminal.
  • the terminal After completing the resource selection, the terminal still continues to listen to the sideline control information. If the time-frequency resource that has been selected and indicated by sending the sideline control information meets the following three conditions, resource reselection is triggered:
  • Condition 1 the resources reserved in the detected sideline control information overlap with the resources selected and indicated by the terminal, including full overlap and partial overlap;
  • the reference signal received power (Reference Signal Received Power, RSRP) of the PSCCH corresponding to the sideline control information detected by the terminal or the RSRP of the PSSCH scheduled by the PSCCH is greater than the sideline RSRP threshold;
  • Condition 3 the priority carried in the detected sideline control information is higher than the priority of the data to be sent by the terminal.
  • resources w, x, y, z, and v are time-frequency resources that have been selected by the terminal, and resource x is located in time slot m.
  • the terminal performs resource listening at least once in time slot mT3 to determine a candidate resource set.
  • the terminal performs resource re-selection, and re-selects the time-frequency resources in x and y that satisfy the above three conditions.
  • the originating end introduces a pre-emption mechanism and a re-evaluation mechanism. Even if the originating device selects a transmission resource and indicates that the transmission resource is reserved through the SCI, the originating device also needs to According to the interception, it is judged whether the selected resource can be used for data transmission. If the pre-emption condition is met, the originating device will reselect the resource. For the receiving device, even if it receives the SCI sent by the sending device, it can learn the transmission resource information reserved by the sending device, but because the sending device may reselect resources, the receiving device needs to detect the PSCCH in each time slot.
  • the receiving device since the PSCCH and its associated PSSCH in the NR-V2X system are transmitted in the same time slot, when the receiving device receives data in a time slot, it will first detect whether there is any data in the first few symbols received. PSCCH, and then detect the second-order SCI, and determine whether the sideline data is sent to the receiving device according to the target identification information in the second-order SCI. Since detection of the PSCCH and the second-order SCI requires processing time, after decoding Before the second-order SCI, the receiving end device cannot determine whether the current time slot has a PSSCH that it needs to receive, so it will continue to receive data, but if there is no PSSCH that the receiving end device needs to receive in the time slot, then the receiving end device receives the data. The down data is useless, and it will also cause waste of energy consumption of the receiving end equipment.
  • the present application proposes a solution for terminal energy saving, which can realize terminal energy saving.
  • FIG. 12 is a schematic flowchart of a method 200 for energy saving according to an embodiment of the present application. As shown in FIG. 12 , the method 200 may include at least part of the following contents:
  • the originating device sends the first PSCCH on the first time unit, and sends the first PSSCH on the second time unit, where the first PSSCH is scheduled by the first PSCCH;
  • the receiving end device receives the first PSCCH in the first time unit, and receives the first PSSCH in the second time unit.
  • the PSCCH and its scheduled PSSCH are located in different time slots.
  • PSCCH may schedule PSSCH across time slots.
  • the time unit may be a time slot, that is, the first time unit may be a first time slot, and the second time unit may be a second time slot.
  • the time unit may also be time information of other granularities, which is not limited in this application.
  • the receiving end device since the first PSSCH scheduled by the first PSCCH is sent in the second time unit, the receiving end device only needs to receive the data on the symbol where the first PSCCH is located in the first time unit That is, there is no need to receive data on the remaining symbols in the first time unit, so the terminal can save energy.
  • first time unit and the second time unit are different time slots, and the second time unit is located after the first time unit. That is, the originating device first sends the first PSCCH on the first time unit, and then sends the first PSSCH on the second time unit.
  • the first PSCCH carries a first-order SCI
  • the first-order SCI includes first address information, where the first address information is used to determine the target of the data scheduled by the first-order SCI equipment.
  • the receiving end device may determine whether to receive the data scheduled by the first-order SCI according to the first address information.
  • the first-order SCI carries the first address information, that is, the target ID, that is, the first PSCCH carries the first address information
  • the receiving end device can determine the first PSSCH after detecting the first PSCCH. Whether the scheduled data is sent to itself, to avoid receiving useless data, so as to achieve the effect of energy saving.
  • Example 1 the originating device sends a second-order SCI in the second time unit, and the second-order SCI occupies resources of the first PSSCH.
  • the originating device sends a second-order SCI on the first time unit, and the second-order SCI includes first address information, that is, a target ID, and the first address information is used to determine the first The target device of the data scheduled by the first-order SCI, and the first-order SCI is carried in the first PSCCH.
  • the receiving end device may determine whether to receive the data scheduled by the first-order SCI according to the first address information.
  • the second-order SCI carries the first address information, but since the originating device sends the second-order SCI on the first time unit, that is, the receiving device receives the first time unit
  • the second-order SCI carrying the first address information can determine whether the data scheduled by the first PSSCH sent in the second time unit is sent to itself, so as to avoid receiving useless data and achieve the effect of energy saving.
  • the second-order SCI occupies one subchannel, and the subchannel does not include the data portion of the first PSSCH.
  • the receiving end device determines that the data scheduled by the first-order SCI is sent to itself according to the first address information, or the receiving end device determines the data according to the first address information.
  • the data scheduled by the first-order SCI may be sent to itself. In this case, the receiving end device determines to receive the data scheduled by the first-order SCI.
  • the receiving end device judges according to the first address information that the data scheduled by the first-order SCI is not sent to itself, or the receiving end device judges according to the first address information The data scheduled by the first-order SCI cannot be sent to itself. In this case, the receiving end device determines not to receive the data scheduled by the first-order SCI.
  • the first address information includes part or all of the target address information generated by a higher layer.
  • the target address information may be the ID of the receiving end device; for multicast transmission, the target address information may be the group ID of the communication group where the receiving end device is located; for broadcast transmission, the target address information Can be a business type ID.
  • the target address information generated by the upper layer is usually 24 bits.
  • the 24-bit target address information can be truncated to 16 bits as the first address information, and the remaining 8 bits are used in the media access control control of PSSCH.
  • Element Media Access Control Control Element, MAC CE
  • the first-order SCI carries the first address information
  • the 24-bit target address information can be truncated into 2 bits or 4 bits as the first address information
  • a 16-bit destination address is placed in the second-order SCI.
  • the combination of the two (bit length is 18 or 20 bits), combined with 6 bits or 4 bits in the MAC CE, finally determines whether the data is sent to the receiving device.
  • the more bits of destination address information carried in the first address information the more accurately it can be judged whether the data is sent to the receiving device. For example, if 24 bits are placed in the first address information, it can be accurately judged whether It is sent to the receiving end device. If 4 bits are placed in the first address information, only 1/16 users can be distinguished.
  • the first address information may be a part intercepted from the end of the target address information generated by the high layer, and the first address information may also be a part intercepted from the head end of the target address information generated by the high layer, the first address information It can also be a part randomly intercepted from the target address information generated by the upper layer.
  • the receiving end device can judge whether it needs to receive the first PSSCH scheduled by the first PSCCH according to the first address information, without having to detect the second-order SCI, so that it can determine whether it needs to receive data faster and earlier. Avoid receiving useless data earlier and achieve energy saving effect.
  • the first-order SCI is carried in the PSCCH, and can be used to indicate part or all of the PSSCH transmission resources, reserved resource information, MCS level, priority and other information scheduled by the PSCCH.
  • the second-order SCI may be used to indicate some or all of the information used for data demodulation, such as source ID, target ID, HARQ ID, NDI, etc.
  • the resource size occupied by the first-order SCI depends on the number of bits of the first-order SCI.
  • the resource size occupied by the second-order SCI depends on the number of bits of the second-order SCI.
  • the PSCCH and its scheduled PSSCH are transmitted in one time slot. Since the terminal cannot determine whether there is data to receive before detecting the PSCCH, it needs to be within this time slot. Continue to receive until the demodulation of the PSCCH is successful, to determine whether there is data to be received, if not, discard the received data, which will result in waste of energy consumption. As shown in Figure 13, the originating device sends PSCCH on symbols 1, 2, and 3 in the time slot, and the receiving device receives PSCCH on symbols 1, 2, and 3.
  • the detection time of PSCCH requires three orthogonal frequencies Time division multiplexing (Orthogonal frequency-division multiplexing, OFDM) symbol, before PSCCH detection is successful, the receiving end device needs to continue to receive data on symbol 4, symbol 5, and symbol 6. If the PSCCH is detected, it is found that the PSCCH schedules The PSSCH is not the data that the receiving end device needs to receive, then the receiving end device stops receiving the following data, and discards the data on symbols 4, 5 and 6 that have been received, resulting in unnecessary data reception at this time.
  • OFDM Orthogonal frequency-division multiplexing
  • the solution of the above example 1 may be as shown in FIG. 14 , the originating device transmits the first PSCCH in time slot 0 and transmits the first PSSCH scheduled by the first PSCCH in time slot 4 .
  • the first PSCCH sent in time slot 0 occupies symbol 1, symbol 2, and symbol 3, and its scheduled first PSCCH is sent in time slot 4. Therefore, in time slot 0, when the receiving end device finishes receiving symbol 1, symbol 3 2. After the data on symbol 3, it is not necessary to receive the data on the remaining symbols in time slot 0, because no matter whether there is sideline data sent to the receiving device in time slot 0, it will not be in time slot 0. send, so it can achieve the purpose of power saving.
  • the solution of the above-mentioned example 2 can be as shown in FIG. 15.
  • the originating device sends the first PSCCH in time slot n, indicating the resources of 1 sub-channel in this time slot n, and the originating device is in this sub-channel.
  • the second-order SCI is sent in the channel, and the time slot n+k where the first PSSCH is located and the frequency domain resources are indicated in the first PSCCH, and the time slots n+p and n+q where the retransmission resources are located are also indicated;
  • the end device receives the first PSCCH at time slot n and the second-order SCI determines whether its scheduled first PSSCH is sent to the receiving end device. If so, the receiving end device receives the first PSSCH on time slot n+k. PSSCH, without receiving the first PSSCH on the time slot of the time slot [n+1, n+k-1], so that the purpose of power saving can be achieved.
  • the first-order SCI includes a priority level, and the priority level is a first value, and the first value represents the highest priority level.
  • the receiving end device may determine, according to the first value, to detect the data sent by the sending end device only on the transmission resources reserved by the sending end device.
  • the priority level of other devices when the priority level of other devices is higher than the priority level of the originating device, other devices may preempt the resources of the originating device, and if the priority level of the originating device is set to the highest, it will not be preempted. That is, since the first value represents the highest priority level, the resources scheduled by the first-order SCI will not be preempted by other devices.
  • the receiving device obtains resource pool configuration information, the resource pool configuration information includes third indication information, and the third indication information is used to determine that the pre-preemption function is not supported;
  • the end device determines, according to the third indication information, to detect the data sent by the originating device only on the transmission resources reserved by the originating device.
  • pre-emption occurs when the following conditions are met:
  • p_preemption is the resource pool configuration parameter
  • prioTX is the priority level of the terminal listening to the resource
  • prioRX is the priority level of other terminals received by the listening terminal; the higher the priority level, the lower the priority; if p_preemption is set to 0 , which means that the resource pool does not support the pre-emption function.
  • the first-order SCI includes second indication information, where the second indication information is used to indicate a time slot interval between the first time unit and the second time unit.
  • the receiving end device may determine the time slot interval between the first time unit and the second time unit based on the second indication information. Therefore, the receiving end device can accurately receive the first PSSCH sent in the second time unit.
  • the second indication information may be an information field in the first-order SCI.
  • the first-order SCI includes a first index
  • the first index corresponds to a first time unit interval in the first correspondence
  • the first time unit interval is the first time The time slot interval between the unit and the second time unit.
  • the first corresponding relationship is pre-configured or agreed in a protocol, or, the first corresponding relationship is configured by a network device, or, the first corresponding relationship is a resource pool configuration parameter, or, the first corresponding relationship It is the interaction between the sending end device and the receiving end device through PC5-Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the first correspondence may be, for example, a correspondence table between indexes and time slot intervals, as shown in Table 1 below.
  • index 0 corresponds to slot interval 0, which means that the first PSCCH and its scheduled first PSSCH are in the same slot, that is, the existing mechanism in NR-V2X;
  • index 2 means that the first PSCCH and its scheduled first PSSCH are in the same slot.
  • the time slot interval of the first PSSCH is 2 time slots, that is, the first PSCCH sent in time slot n, the first PSSCH scheduled in time slot n+2; index 6 indicates the first PSCCH and its scheduled first PSSCH
  • the time slot interval is 8 time slots, that is, the first PSCCH is sent in time slot n, and its scheduled first PSSCH is in time slot n+8.
  • the PSCCH sent on the first time unit schedules the first transmission of the PSSCH.
  • the originating device sends a second PSCCH on the second time unit, where the second PSCCH is used to schedule a second PSSCH, and the second PSCCH occupies resources of the first PSSCH.
  • the first PSSCH and the second PSSCH transmit the same data block.
  • the first-order SCI includes first indication information, or, the second-order SCI includes first indication information, wherein the first indication information is used to determine that the originating device is on the second time unit Whether to send the second PSCCH.
  • the receiving end device determines whether to receive the second PSCCH in the second time unit according to the first indication information.
  • the first indication information is used to determine whether the originating device sends the second-order SCI associated with the second PSCCH in the second time unit.
  • the first indication information is used to determine whether the originating device only sends the first PSSCH in the second time unit.
  • the first indication information is used to determine whether the originating device transmits the second PSCCH and the second-order SCI associated with the second PSCCH within the resources of the first PSCCH.
  • the PSSCH of the nth transmission and the PSCCH of the n+1th transmission are located in the same time slot, n is an integer, and n ⁇ 1.
  • the originating device sends PSCCH in time slot n, indicating the resources of 1 subchannel in this time slot n, sends the second-order SCI in this subchannel, and indicates in PSCCH the time slot where the PSSCH is located n+k and frequency domain resources also indicate the time slot n+p where the retransmission resources are located; therefore, the receiving end device receives the PSCCH in time slot n and the second-order SCI determines whether its scheduled PSSCH is sent to the receiving end device. Yes, if it is, the receiving end device receives the PSSCH on the time slot n+k without receiving the PSSCH on the time slot of the time slot [n+1, n+k-1].
  • the originating device sends the PSSCH scheduled by the PSCCH of time slot n in time slot n+k, and the PSCCH corresponding to the retransmitted PSSCH, the PSCCH indicates that the time slot where the corresponding PSSCH is located is n+p, and indicates the next retransmission The time slot n+q where the transmission resource is located.
  • the originating device sends the PSSCH scheduled by the PSCCH of the time slot n+k in the time slot n+p, and the PSCCH corresponding to the retransmitted PSSCH, and the PSCCH indicates that the time slot where the corresponding PSSCH is located is n+q;
  • the originating device sends the PSSCH scheduled by the PSCCH in the time slot n+p in the time slot n+q. If the originating device does not need to retransmit again, it does not send the PSCCH in the time slot n+q, that is, the last time slot n+ Only PSSCH is included in q, and PSCCH is not included.
  • the transmission resource reserved by the originating device is located in the second time unit, or the transmission resource reserved by the originating device is located after the second time unit.
  • the originating device when the resources reserved by the originating device are preempted, the originating device reselects the reserved resources after the second time unit. That is, when the resources reserved by the originating device are preempted, the resources reselected by the originating device are located after the second time unit. For example, the resource of the first PSSCH is preempted, the originating device reselects the transmission resource for transmitting the first PSSCH, and the reselected transmission resource is located after the second time unit.
  • the receiving device since the first PSSCH scheduled by the first PSCCH is sent in the second time unit, the receiving device only needs to receive the data on the symbol where the first PSCCH is located in the first time unit, There is no need to receive data on the remaining symbols in the first time unit, so terminal energy saving can be achieved. Further, even if resource reselection occurs in the originating device, the reselected resources are definitely after the second time unit. Therefore, the receiving end device receives the first PSCCH in the first time unit, and determines that the first PSSCH scheduled by it is sent to the second time unit. The terminal receives the first PSSCH on the second time unit without detecting the PSCCH and the PSSCH between the first time unit and the second time unit, so that the terminal can save energy.
  • FIG. 17 is a schematic flowchart of a method 300 for energy saving according to an embodiment of the present application. As shown in FIG. 17 , the method 300 may include at least part of the following contents:
  • the originating device sends the first-order SCI and the second-order SCI on the first time unit, where the first-order SCI is carried in the PSCCH, the second-order SCI occupies PSSCH resources, and the second-order SCI starts from the first-order SCI.
  • the second side row symbol of a time unit starts mapping, and the PSSCH is scheduled by the PSCCH;
  • the receiving end device receives the first-order SCI and the second-order SCI on the first time unit.
  • the second-order SCI is mapped from the second side-line symbol of the first time unit, and the receiving device can detect the second-order SCI as early as possible, so as to be based on the target identification information in the second-order SCI Determine whether the sideline data is sent to the receiving end device, avoid unnecessary data reception, and achieve the purpose of terminal power saving.
  • the time unit may be a time slot, that is, the first time unit may be a first time slot.
  • the time unit may also be time information of other granularities, which is not limited in this application.
  • the second-order SCI can also be mapped from the third side-line symbol of the first time unit, which can also achieve the purpose of power saving of the terminal to a certain extent.
  • the second-order SCI can also be mapped from the fourth side row symbol of the first time unit, which can also achieve the purpose of power saving of the terminal to a certain extent.
  • the first-order SCI is carried in the PSCCH, and can be used to indicate part or all of the PSSCH transmission resources, reserved resource information, MCS level, priority and other information scheduled by the PSCCH.
  • the second-order SCI is sent in the resources of PSSCH, and demodulated by the DMRS of PSSCH, which can be used to indicate part or all of the information used for data demodulation, such as source ID, target ID, HARQ ID, and NDI.
  • the resource size occupied by the first-order SCI depends on the number of bits of the first-order SCI.
  • the resource size occupied by the second-order SCI depends on the number of bits of the second-order SCI.
  • the second-order SCI is mapped from the first PSSCH DMRS symbol, which is mainly because the second-order SCI is mapped to the DMRS symbol or the symbol next to it, and the channel estimation accuracy is improved. high, so it has better demodulation performance.
  • the receiving device needs to receive data on multiple symbols, and after receiving the last symbol of the second-order SCI After demodulating the second-order SCI, it takes time to demodulate the second-order SCI, and it needs to continue to receive data before demodulation.
  • PSCCH is sent on symbols 1, 2, and 3 in the time slot
  • the second-order SCI is sent on symbols 4 and 3. 5.
  • the PSSCH scheduled by the PSCCH is not the data that the receiving end device needs to receive, then the receiving end device stops receiving the following data, and discards the data on symbols 7, 8, and 9 that have been received. cause unnecessary data reception.
  • the receiving end device has already received the data on most of the symbols in the time slot, even if the following symbols 10, 11 and 12 do not continue to receive data, it will not bring about obvious energy saving effect.
  • the solution of the embodiment of the present application may be as shown in FIG. 19 .
  • the second-order SCI is mapped from the second side row symbol to symbol 1, symbol 2, and symbol 3. Due to the need for The second-order SCI is demodulated according to the PSSCH DMRS, so the receiving device can start to demodulate the second-order SCI after receiving the DMRS at symbol 4.
  • the detection time requires 3 symbols, so the second-order SCI can be detected on symbol 7. Then it is judged whether the data is sent to the receiving end device. If not, the receiving end device does not need to continue to receive the data on symbols 8-12. Therefore, compared with the example in FIG. 18 , it has the effect of power saving.
  • the technical solution of the present application considers that the terminals with energy saving requirements are usually handheld terminals, such as pedestrian terminals (Pedestrian UE, P-UE), etc., and their movement speed is very slow, so the channel changes within a time slot. Very slow, although the second-order SCI is far from the DMRS symbol, it has little effect on the detection performance.
  • the first-order SCI includes first address information, where the first address information is used to determine a target device of data scheduled by the first-order SCI.
  • the receiving end device determines whether to receive the data scheduled by the first-order SCI according to the first address information.
  • the first address information includes part or all of the target address information generated by a higher layer.
  • the target address information may be the ID of the receiving end device; for multicast transmission, the target address information may be the group ID of the communication group where the receiving end device is located; for broadcast transmission, the target address information Can be a business type ID.
  • the target address information generated by the high layer is usually 24 bits.
  • the target address information of the 24 bits can be shortened to 16 bits as the first address information, and the remaining 8 bits are carried in the MAC CE of the PSSCH.
  • the first-order SCI carries the first address information
  • the 24-bit target address information can be truncated into 2 bits or 4 bits as the first address information
  • a 16-bit destination address is placed in the second-order SCI.
  • the combination of the two (bit length is 18 or 20 bits), combined with 6 bits or 4 bits in the MAC CE, finally determines whether the data is sent to the receiving device.
  • the more bits of destination address information carried in the first address information the more accurately it can be judged whether the data is sent to the receiving device. For example, if 24 bits are placed in the first address information, it can be accurately judged whether It is sent to the receiving end device. If 4 bits are placed in the first address information, only 1/16 users can be distinguished.
  • the first address information may be a part intercepted from the end of the target address information generated by the high layer, and the first address information may also be a part intercepted from the head end of the target address information generated by the high layer, the first address information It can also be a part randomly intercepted from the target address information generated by the upper layer.
  • the receiving end device can judge whether it needs to receive the first PSSCH scheduled by the first PSCCH according to the first address information in the first-order SCI, without having to detect the second-order SCI, so that the determination can be made faster and earlier. Whether it is necessary to receive data, it can avoid receiving useless data earlier and achieve energy saving effect.
  • FIG. 20 is a schematic flowchart of a method 400 for energy saving according to an embodiment of the present application. As shown in FIG. 20 , the method 400 may include at least part of the following contents:
  • the originating device sends a first-order SCI and a second-order SCI on a first time unit, where the first-order SCI is carried in the PSCCH, the second-order SCI occupies PSSCH resources, and the first-order SCI includes indication information , the indication information is used to indicate the position of the first time-domain symbol of the second-order SCI transmission resource, and the PSSCH is scheduled by the PSCCH;
  • the receiving end device receives the first-order SCI on the first time unit
  • the receiving end device receives the second-order SCI on the first time unit according to the indication information.
  • the position of the first time domain symbol is the second side row symbol of the first time unit, or, the position of the first time domain symbol is the first PSSCH DMRS of the first time unit symbol.
  • the time unit may be a time slot, that is, the first time unit may be a first time slot.
  • the time unit may also be time information of other granularities, which is not limited in this application.
  • the position of the first time domain symbol may be the second side row symbol (scheme 1) of the first time unit, and the position of the first time domain symbol may be the first time unit of the first time unit.
  • PSSCH DMRS symbols (scheme 2) that is, when both schemes exist, the receiving end device can determine the position of the first side row symbol mapped by the second-order SCI based on the indication information in the first-order SCI.
  • the first-order SCI includes first address information, where the first address information is used to indicate a target device of data scheduled by the first-order SCI.
  • the receiving end device determines whether to receive the data scheduled by the first-order SCI according to the first address information.
  • the first address information includes part or all of the target address information generated by a higher layer.
  • the target address information may be the ID of the receiving end device; for multicast transmission, the target address information may be the group ID of the communication group where the receiving end device is located; for broadcast transmission, the target address information Can be a business type ID.
  • the target address information generated by the high layer is usually 24 bits.
  • the target address information of the 24 bits can be shortened to 16 bits as the first address information, and the remaining 8 bits are carried in the MAC CE of the PSSCH.
  • the first-order SCI carries the first address information
  • the 24-bit target address information can be truncated into 2 bits or 4 bits as the first address information
  • a 16-bit destination address is placed in the second-order SCI.
  • the combination of the two (bit length is 18 or 20 bits), combined with 6 bits or 4 bits in the MAC CE, finally determines whether the data is sent to the receiving device.
  • the more bits of destination address information carried in the first address information the more accurately it can be judged whether the data is sent to the receiving device. For example, if 24 bits are placed in the first address information, it can be accurately judged whether It is sent to the receiving end device. If 4 bits are placed in the first address information, only 1/16 users can be distinguished.
  • the first address information may be a part intercepted from the end of the target address information generated by the high layer, and the first address information may also be a part intercepted from the head end of the target address information generated by the high layer, the first address information It can also be a part randomly intercepted from the target address information generated by the upper layer.
  • the originating device indicates the position of the first time-domain symbol of the second-order SCI transmission resource in the first-order SCI, so that the receiving device can accurately receive the second-order SCI and save power to the terminal the goal of.
  • the position of the first time domain symbol may be the second side row symbol (scheme 1) of the first time unit and the position of the first time domain symbol may be the first time unit.
  • the first PSSCH DMRS symbol (scheme 2) that is, when both schemes exist, the receiving end device can determine the position of the first side row symbol mapped by the second-order SCI based on the indication information in the first-order SCI.
  • FIG. 21 shows a schematic block diagram of an originating device 500 according to an embodiment of the present application.
  • the originating device 500 includes: a communication unit 510 for sending a first PSCCH on a first time unit and sending a first PSSCH on a second time unit, wherein the first PSSCH is generated by the The first PSCCH is scheduled.
  • the first PSCCH carries a first-order SCI
  • the first-order SCI includes first address information, where the first address information is used to determine a target device of data scheduled by the first-order SCI.
  • the communication unit 510 is further configured to send a second-order SCI on the second time unit, where the second-order SCI occupies resources of the first PSSCH.
  • the communication unit 510 is further configured to send a second-order SCI on the first time unit, and the second-order SCI includes first address information, and the first address information is used to determine the schedule of the first-order SCI.
  • the target device of the data, the first order SCI is carried in the first PSCCH.
  • the second-order SCI occupies a sub-channel, and the sub-channel does not include the data part of the first PSSCH.
  • the communication unit 510 is further configured to send a second PSCCH on the second time unit, where the second PSCCH is used to schedule a second PSSCH, and the second PSCCH occupies resources of the first PSSCH.
  • the first PSSCH and the second PSSCH transmit the same data block.
  • the first-order SCI includes first indication information, or the second-order SCI includes first indication information, where the first indication information is used to indicate that the originating device is on the second time unit Whether to send the second PSCCH.
  • the first address information includes part or all of the target address information generated by a higher layer.
  • the first-order SCI includes a priority level, and the priority level is a first value, and the first value represents the highest priority level.
  • the first-order SCI includes second indication information, where the second indication information is used to determine a time slot interval between the first time unit and the second time unit.
  • the first-order SCI includes a first index, and the first index corresponds to the first time unit interval in the first correspondence, and the first time unit interval is the first time unit and the second time unit. interval between time slots.
  • the first corresponding relationship is pre-configured or agreed in a protocol, or, the first corresponding relationship is configured by a network device, or, the first corresponding relationship is a resource pool configuration parameter, or, the first corresponding relationship It is the communication between the originating device and the terminating device through PC5-RRC signaling.
  • the PSCCH sent in the first time unit schedules the first transmission of the PSSCH.
  • the PSSCH of the nth transmission and the PSCCH of the n+1th transmission are located in the same time slot, n is an integer, and n ⁇ 1.
  • the transmission resource reserved by the originating device is located in the second time unit, or the transmission resource reserved by the originating device is located after the second time unit.
  • the originating device further includes: a processing unit 520, wherein when the resources reserved by the originating device are preempted, the processing unit 520 is configured to reselect the reserved resources after the second time unit.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the originating device 500 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the originating device 500 are respectively for realizing the method shown in FIG. 12 .
  • the corresponding process of the originating device in 200 is not repeated here for brevity.
  • FIG. 22 shows a schematic block diagram of a receiving end device 600 according to an embodiment of the present application.
  • the receiving end device 600 includes: a communication unit 610, configured to receive the first physical sideline control channel PSCCH in the first time unit, and receive the first physical sideline shared channel in the second time unit PSSCH, where the first PSSCH is scheduled by the first PSCCH.
  • the first PSCCH carries first-order side row control information SCI, and the first-order SCI includes first address information, and the first address information is used to determine the target of the data scheduled by the first-order SCI equipment;
  • the receiving end device 600 further includes:
  • the processing unit 620 is configured to determine, according to the first address information, whether to receive the data scheduled by the first-order SCI.
  • the communication unit 610 is further configured to receive a second-order SCI on the second time unit, where the second-order SCI occupies resources of the first PSSCH.
  • the receiving end device 600 further includes: a processing unit 620,
  • the communication unit 610 is further configured to receive a second-order SCI on the first time unit, and the second-order SCI includes first address information, where the first address information is used to determine a target device of data scheduled by the first-order SCI , the first-order SCI is carried in the first PSCCH;
  • the processing unit 620 is configured to determine, according to the first address information, whether to receive the data scheduled by the first-order SCI.
  • the second-order SCI occupies a sub-channel, and the sub-channel does not include the data part of the first PSSCH.
  • the communication unit 610 is further configured to receive a second PSCCH on the second time unit, where the second PSCCH is used to schedule a second PSSCH, and the second PSCCH occupies resources of the first PSSCH.
  • the first PSSCH and the second PSSCH transmit the same data block.
  • the first-order SCI includes first indication information, or, the second-order SCI includes first indication information, wherein the first indication information is used to determine whether the originating device is on the second time unit sending the second PSCCH;
  • the receiving end device 600 further includes:
  • the processing unit 620 is configured to determine whether to receive the second PSCCH in the second time unit according to the first indication information.
  • the first address information includes part or all of the target address information generated by a higher layer.
  • the first-order SCI includes a priority level, and the priority level is a first value, and the first value is used to represent the highest priority level;
  • the receiving end device 600 further includes:
  • the processing unit 620 is configured to determine, according to the first value, to detect the data sent by the originating device only on the transmission resources reserved by the originating device.
  • the receiving end device further includes: a processing unit 620, wherein:
  • the communication unit 610 is further configured to acquire resource pool configuration information, where the resource pool configuration information includes third indication information, where the third indication information is used to determine that the pre-preemption function is not supported;
  • the processing unit 620 is configured to determine, according to the third indication information, to detect the data sent by the originating device only on the transmission resources reserved by the originating device.
  • the first-order SCI includes second indication information, where the second indication information is used to indicate a time slot interval between the first time unit and the second time unit.
  • the first-order SCI includes a first index, and the first index corresponds to the first time unit interval in the first correspondence, and the first time unit interval is the first time unit and the second time unit. interval between time slots.
  • the first corresponding relationship is pre-configured or agreed in a protocol, or, the first corresponding relationship is configured by a network device, or, the first corresponding relationship is a resource pool configuration parameter, or, the first corresponding relationship It is the communication between the originating device and the terminating device through PC5-RRC signaling.
  • the PSCCH sent in the first time unit schedules the first transmission of the PSSCH.
  • the PSSCH of the nth transmission and the PSCCH of the n+1th transmission are located in the same time slot, n is an integer, and n ⁇ 1.
  • the transmission resource reserved by the originating device is located in the second time unit, or the transmission resource reserved by the originating device is located after the second time unit.
  • the reserved resources reselected by the originating device are located after the second time unit.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the receiving end device 600 may correspond to the receiving end device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the receiving end device 400 are for the purpose of realizing FIG. 12 , respectively.
  • the corresponding process of the receiving device in the shown method 200 will not be repeated here.
  • FIG. 23 shows a schematic block diagram of an originating device 700 according to an embodiment of the present application.
  • the originating device 700 includes: a communication unit 710, configured to send the first-order sideline control information SCI and the second-order SCI on the first time unit,
  • the first-order SCI is carried in the physical sideline control channel PSCCH
  • the second-order SCI occupies PSSCH resources of the physical sideline shared channel
  • the second-order SCI starts from the second sideline symbol of the first time unit mapping, where the PSSCH is scheduled by the PSCCH.
  • the first-order SCI includes first address information, where the first address information is used to determine a target device of data scheduled by the first-order SCI.
  • the first address information includes part or all of the target address information generated by a higher layer.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the originating device 700 may correspond to the originating device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the originating device 700 are respectively for realizing the method shown in FIG. 17 .
  • the corresponding process of the originating device in 300 is not repeated here for brevity.
  • FIG. 24 shows a schematic block diagram of a receiving end device 800 according to an embodiment of the present application.
  • the receiving end device 800 includes: a communication unit 810, configured to receive the first-order sideline control information SCI and the second-order SCI on the first time unit,
  • the first-order SCI is carried in the physical sideline control channel PSCCH
  • the second-order SCI occupies PSSCH resources of the physical sideline shared channel
  • the second-order SCI starts from the second sideline symbol of the first time unit mapping, where the PSSCH is scheduled by the PSCCH.
  • the first-order SCI includes first address information, and the first address information is used to determine the target device of the data scheduled by the first-order SCI;
  • the receiving end device 800 further includes:
  • the processing unit 820 is configured to determine, according to the first address information, whether to receive the data scheduled by the first-order SCI.
  • the first address information includes part or all of the target address information generated by a higher layer.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the receiving end device 800 may correspond to the receiving end device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the receiving end device 800 are for the purpose of realizing FIG. 17 , respectively.
  • the corresponding process of the receiving device in the shown method 300 will not be repeated here.
  • FIG. 25 shows a schematic block diagram of an originating device 900 according to an embodiment of the present application.
  • the originating device 900 includes: a communication unit 910, configured to send the first-order sideline control information SCI and the second-order SCI on the first time unit,
  • the first-order SCI is carried in the physical sideline control channel PSCCH
  • the second-order SCI occupies PSSCH resources of the physical sideline shared channel
  • the first-order SCI includes indication information, which is used to indicate the second-order SCI The position of the first time-domain symbol of the SCI transmission resource, where the PSSCH is scheduled by the PSCCH.
  • the position of the first time domain symbol is the second side row symbol of the first time unit, or the position of the first time domain symbol is the first PSSCH solution of the first time unit.
  • the first-order SCI includes first address information, where the first address information is used to indicate a target device of data scheduled by the first-order SCI.
  • the first address information includes part or all of the target address information generated by a higher layer.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the originating device 900 may correspond to the originating device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the originating device 900 are for implementing the method shown in FIG. 20 , respectively.
  • the corresponding process of the originating device in 400 is not repeated here for brevity.
  • FIG. 26 shows a schematic block diagram of a receiving end device 1000 according to an embodiment of the present application. As shown in Figure 26, the receiving end device 1000 includes:
  • the communication unit 1010 is configured to receive the first-order sideline control information SCI on the first time unit, wherein the first-order SCI is carried in the physical sideline control channel PSCCH, and the first-order SCI includes indication information, and the indication information The position of the first time-domain symbol used to indicate the transmission resource of the second-order SCI on the first time unit, where the second-order SCI occupies the PSSCH resource of the physical sideline shared channel, where the PSSCH is scheduled by the PSCCH of;
  • the communication unit 1010 is further configured to receive the second-order SCI on the first time unit according to the indication information.
  • the position of the first time domain symbol is the second side row symbol of the first time unit, or the position of the first time domain symbol is the first PSSCH solution of the first time unit.
  • the first-order SCI includes first address information, and the first address information is used to indicate the target device of the data scheduled by the first-order SCI;
  • the receiving end device 1000 further includes:
  • the processing unit 1020 is configured to determine, according to the first address information, whether to receive the data scheduled by the first-order SCI.
  • the first address information includes part or all of the target address information generated by a higher layer.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the receiving end device 1000 may correspond to the receiving end device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the receiving end device 1000 are for the purpose of realizing FIG. 20 .
  • the corresponding process of the receiving device in the shown method 400 will not be repeated here.
  • FIG. 27 is a schematic structural diagram of a communication device 1100 provided by an embodiment of the present application.
  • the communication device 1100 shown in FIG. 27 includes a processor 1110, and the processor 1110 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the communication device 1100 may further include a memory 1120 .
  • the processor 1110 may call and run a computer program from the memory 1120 to implement the methods in the embodiments of the present application.
  • the memory 1120 may be a separate device independent of the processor 1110, or may be integrated in the processor 1110.
  • the communication device 1100 may further include a transceiver 1130, and the processor 1110 may control the transceiver 1130 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.
  • the transceiver 1130 may include a transmitter and a receiver.
  • the transceiver 1130 may further include an antenna, and the number of the antenna may be one or more.
  • the communication device 1100 may specifically be the originating device of this embodiment of the present application, and the communication device 1100 may implement the corresponding processes implemented by the originating device in each method of the embodiment of the present application. For brevity, details are not repeated here. .
  • the communication device 1100 may specifically be the receiving end device of this embodiment of the present application, and the communication device 1100 may implement the corresponding processes implemented by the receiving end device in each method of the embodiment of the present application. Repeat.
  • FIG. 28 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • the apparatus 1200 shown in FIG. 28 includes a processor 1210, and the processor 1210 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the apparatus 1200 may further include a memory 1220 .
  • the processor 1210 may call and run a computer program from the memory 1220 to implement the methods in the embodiments of the present application.
  • the memory 1220 may be a separate device independent of the processor 1210, or may be integrated in the processor 1210.
  • the apparatus 1200 may further include an input interface 1230 .
  • the processor 1210 can control the input interface 1230 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the apparatus 1200 may further include an output interface 1240 .
  • the processor 1210 may control the output interface 1240 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the apparatus may be applied to the originating device in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the originating device in each method of the embodiments of the present application, which will not be repeated here for brevity.
  • the apparatus can be applied to the receiving end device in the embodiment of the present application, and the apparatus can implement the corresponding processes implemented by the receiving end device in each method of the embodiment of the present application, which is not repeated here for brevity.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 29 is a schematic block diagram of a communication system 1300 provided by an embodiment of the present application. As shown in FIG. 29 , the communication system 1300 includes an originating device 1310 and a terminating device 1320 .
  • the originating device 1310 can be used to implement the corresponding functions implemented by the originating device in the above method
  • the receiving device 1320 can be used to implement the corresponding functions implemented by the terminating device in the above method. Repeat.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the originating device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the originating device in each method of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the originating device in each method of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the terminal device in each method of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the terminal device in each method of the embodiments of the present application.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the originating device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the originating device in each method of the embodiments of the present application. Repeat.
  • the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. This will not be repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the originating device in the embodiments of the present application, and when the computer program runs on the computer, the computer executes the corresponding processes implemented by the originating device in the various methods of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.
  • the computer program can be applied to the terminal device in the embodiment of the present application, and when the computer program is run on the computer, the computer is made to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application, For brevity, details are not repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请实施例提供了一种节能的方法及设备，能够实现终端节能。该节能的方法包括：发端设备在第一时间单元上发送第一PSCCH，以及在第二时间单元上发送第一PSSCH，其中，该第一PSSCH是由该第一PSCCH调度的。

Description

节能的方法及设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及一种节能的方法及设备。
背景技术
在新空口车辆到其他设备(New Radio Vehicle to Everything，NR-V2X)系统中，发端引入了预抢占(pre-emption)机制和重评估(re-evaluation)机制，即使发端设备选取了传输资源并且通过侧行控制信息(Sidelink Control Information，SCI)指示预留了该传输资源，发端设备也需要根据侦听判断是否能够用选取的资源进行数据传输，如果满足pre-emption的条件，发端设备会重选资源。而对于收端设备，即使接收到了发端设备发送的SCI可以获知该发端设备预留的传输资源信息，但是由于发端设备可能会重选资源，因此，收端设备需要在每个时隙去检测物理侧行控制信道(Physical Sidelink Control Channel，PSCCH)，以避免由于发端设备重选了资源而造成收端设备漏检发端设备的数据。然而，对于具有节能需求的终端而言，如果每个时隙都去检测是否存在PSCCH，会导致能耗过大，不利于终端的节能需求。
此外，由于NR-V2X系统中PSCCH和其关联的物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)在同一时隙中传输，收端设备在一个时隙中接收数据时，会先根据接收下来的前几个符号上的数据去检测是否有PSCCH，然后再去检测第二阶SCI，根据第二阶SCI中的目标标识信息确定该侧行数据是否是发给该收端设备的，由于检测PSCCH和第二阶SCI需要处理时间，在解码出第二阶SCI前，收端设备无法判断当前时隙是否有自己需要接收的PSSCH，因此会继续接收数据，但是如果该时隙中没有该收端设备需要接收的PSSCH，那么收端设备接收下来的数据都是无用的，此时也会造成收端设备的能耗浪费。
发明内容
本申请实施例提供了一种节能的方法及设备，能够实现终端节能。
第一方面，提供了一种节能的方法，该方法包括：
发端设备在第一时间单元上发送第一PSCCH，以及在第二时间单元上发送第一PSSCH，其中，该第一PSSCH是由该第一PSCCH调度的。
第二方面，提供了一种节能的方法，该方法包括：
收端设备在第一时间单元上接收第一PSCCH，以及在第二时间单元上接收第一PSSCH，其中，该第一PSSCH是由该第一PSCCH调度的。
第三方面，提供了一种节能的方法，该方法包括：
发端设备在第一时间单元上发送第一阶SCI和第二阶SCI，
其中，该第一阶SCI承载在PSCCH中，该第二阶SCI占用PSSCH资源，该第二阶SCI从该第一时间单元的第二个侧行符号开始映射，其中，该PSSCH是由该PSCCH调度的。
第四方面，提供了一种节能的方法，该方法包括：
收端设备在第一时间单元上接收第一阶SCI和第二阶SCI，
其中，该第一阶SCI承载在PSCCH中，该第二阶SCI占用PSSCH资源，该第二阶SCI从该第一时间单元的第二个侧行符号开始映射，其中，该PSSCH是由该PSCCH调度的。
第五方面，提供了一种节能的方法，该方法包括：
发端设备在第一时间单元上发送第一阶SCI和第二阶SCI，
其中，该第一阶SCI承载在PSCCH中，该第二阶SCI占用PSSCH资源，该第一阶SCI包括指示信息，该指示信息用于指示该第二阶SCI传输资源的第一个时域符号的位置，其中，该PSSCH是由该PSCCH调度的。
第六方面，提供了一种节能的方法，该方法包括：
收端设备在第一时间单元上接收第一阶SCI，其中，该第一阶SCI承载在PSCCH中该第一阶SCI包括指示信息，该指示信息用于指示第二阶SCI在该第一时间单元上的传输资源的第一个时域符号的位置，该第二阶SCI占用PSSCH资源，其中，该PSSCH是由该PSCCH调度的；
该收端设备根据该指示信息在该第一时间单元上接收该第二阶SCI。
第七方面，提供了一种发端设备，用于执行上述第一方面中的方法。
具体地，该发端设备包括用于执行上述第一方面中的方法的功能模块。
第八方面，提供了一种收端设备，用于执行上述第二方面中的方法。
具体地，该收端设备包括用于执行上述第二方面中的方法的功能模块。
第九方面，提供了一种发端设备，用于执行上述第三方面中的方法。
具体地，该发端设备包括用于执行上述第三方面中的方法的功能模块。
第十方面，提供了一种收端设备，用于执行上述第四方面中的方法。
具体地，该收端设备包括用于执行上述第四方面中的方法的功能模块。
第十一方面，提供了一种发端设备，用于执行上述第五方面中的方法。
具体地，该发端设备包括用于执行上述第五方面中的方法的功能模块。
第十二方面，提供了一种收端设备，用于执行上述第六方面中的方法。
具体地，该收端设备包括用于执行上述第六方面中的方法的功能模块。
第十三方面，提供了一种发端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面中的方法。
第十四方面，提供了一种收端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第二方面中的方法。
第十五方面，提供了一种发端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第三方面中的方法。
第十六方面，提供了一种收端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第四方面中的方法。
第十七方面，提供了一种发端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第五方面中的方法。
第十八方面，提供了一种收端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第六方面中的方法。
第十九方面，提供了一种装置，用于实现上述第一方面至第六方面中的任一方面中的方法。
具体地，该装置包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该装置的设备执行如上述第一方面至第六方面中的任一方面中的方法。
第二十方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面至第六方面中的任一方面中的方法。
第二十一方面，提供了一种计算机程序产品，包括计算机程序指令，所述计算机程序指令使得计算机执行上述第一方面至第六方面中的任一方面中的方法。
第二十二方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面至第六方面中的任一方面中的方法。
通过上述第一方面和第二方面的技术方案，第一PSCCH跨时隙调度第一PSSCH，收端设备只需要在第一时间单元中接收第一PSCCH所在的符号上的数据即可，无需接收第一时间单元中剩余符号上的数据，因此可以达到终端省电的目的。
通过上述第三方面和第四方面的技术方案，将第二阶SCI从第一时间单元的第二个侧行符号开始映射，收端设备可以尽早的检测第二阶SCI，从而基于第二阶SCI中的目标标识信息确定侧行数据是否是发给收端设备的，避免没必要的数据接收，达到终端省电的目的。
通过上述第五方面和第六方面的技术方案，发端设备在第一阶SCI中指示第二阶SCI传输资源的第一个时域符号的位置，从而收端设备可以准确接收第二阶SCI，达到终端省电的目的。
附图说明
图1是本申请提供的一种网络覆盖范围内侧行通信的示意性图。
图2是本申请提供的一种部分网络覆盖侧行通信的示意性图。
图3是本申请提供的一种网络覆盖外侧行通信的示意性图。
图4是本申请提供的一种单播侧行通信的示意性图。
图5是本申请提供的一种组播侧行通信的示意性图。
图6是本申请提供的一种广播侧行通信的示意性图。
图7是本申请提供的一种PSCCH和PSSCH复用的示意性图。
图8是本申请提供的一种PSCCH和PSSCH帧结构的示意性图。
图9是本申请提供的一种用于同一个TB传输资源预留及用于不同TB的资源预留的示意性图。
图10是本申请提供的一种重评估机制的示意性图。
图11是本申请提供的一种预抢占机制的示意性图。
图12是根据本申请实施例提供的一种节能的方法的示意性流程图。
图13是根据本申请实施例提供的一种PSCCH检测时间的示意性图。
图14是根据本申请实施例提供的一种跨时隙调度的示意性图。
图15是根据本申请实施例提供的另一种跨时隙调度的示意性图。
图16是根据本申请实施例提供的再一种跨时隙调度的示意性图。
图17是根据本申请实施例提供的另一种节能的方法的示意性流程图。
图18是根据本申请实施例提供的一种第二阶SCI检测时间的示意性图。
图19是根据本申请实施例提供的另一种第二阶SCI检测时间的示意性图。
图20是根据本申请实施例提供的再一种节能的方法的示意性流程图。
图21是根据本申请实施例提供的一种发端设备的示意性框图。
图22是根据本申请实施例提供的一种收端设备的示意性框图。
图23是根据本申请实施例提供的又一种发端设备的示意性框图。
图24是根据本申请实施例提供的又一种收端设备的示意性框图。
图25是根据本申请实施例提供的再一种发端设备的示意性框图。
图26是根据本申请实施例提供的再一种收端设备的示意性框图。
图27是根据本申请实施例提供的一种通信设备的示意性框图。
图28是根据本申请实施例提供的一种装置的示意性框图。
图29是根据本申请实施例提供的一种通信系统的示意性框图。
具体实施方式
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。针对本申请中的实施例，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。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新空口(New Radio，NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum，NR-U)系统、非地面通信网络(Non-Terrestrial Networks，NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、第五代通信(5th-Generation，5G)系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，车辆间(Vehicle to Vehicle，V2V)通信，或车辆到其他设备(Vehicle to everything，V2X)通信等，本申请实施例也可以应用于这些通信系统。
可选地，本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation，CA)场景，也可以应用于双连接(Dual Connectivity，DC)场景，还可以应用于独立(Standalone，SA)布网场景。
可选地，本申请实施例中的通信系统可以应用于非授权频谱，其中，非授权频谱也可以认为是共享频谱；或者，本申请实施例中的通信系统也可以应用于授权频谱，其中，授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例，其中，终端设备也可以称为用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是WLAN中的站点(STATION，ST)，可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备，或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端设备等。
在本申请实施例中，终端设备可以部署在陆地上，包括室内或室外、手持、穿戴或车载；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)。
在本申请实施例中，终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能 的电脑、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(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
在本申请实施例中，网络设备可以是用于与移动设备通信的设备，网络设备可以是WLAN中的接入点(Access Point，AP)，GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB，NB)，还可以是LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者车载设备、可穿戴设备以及NR网络中的网络设备或者基站(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定，在本申请实施例中，网络设备可以具有移动特性，例如网络设备可以为移动的设备。可选地，网络设备可以为卫星、气球站。例如，卫星可以为低地球轨道(low earth orbit，LEO)卫星、中地球轨道(medium earth orbit，MEO)卫星、地球同步轨道(geostationary earth orbit，GEO)卫星、高椭圆轨道(High Elliptical Orbit，HEO)卫星等。可选地，网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中，网络设备可以为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(Small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种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这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。
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。
需要说明的是，在侧行通信中，根据进行通信的终端所处的网络覆盖情况，可以分为网络覆盖内侧行通信，如图1所示；部分网络覆盖侧行通信，如图2所示；及网络覆盖外侧行通信，如图3所示。
图1：在网络覆盖内侧行通信中，所有进行侧行通信的终端均处于同一基站的覆盖范围内，从而，上述终端均可以通过接收基站的配置信令，基于相同的侧行配置进行侧行通信。
图2：在部分网络覆盖侧行通信情况下，部分进行侧行通信的终端位于基站的覆盖范围内，这部分终端能够接收到基站的配置信令，而且根据基站的配置进行侧行通信。而位于网络覆盖范围外的终端，无法接收基站的配置信令，在这种情况下，网络覆盖范围外的终端将根据预配置(pre-configuration)信息及位于网络覆盖范围内的终端发送的物理侧行广播信道(Physical Sidelink Broadcast Channel，PSBCH)中携带的信息确定侧行配置，进行侧行通信。
图3：对于网络覆盖外侧行通信，所有进行侧行通信的终端均位于网络覆盖范围外，所有终端均根据预配置(pre-configuration)信息确定侧行配置进行侧行通信。
需要说明的是，设备到设备通信是基于终端到终端(Device to Device，D2D)的一种侧行链路 (Sidelink，SL)传输技术，与传统的蜂窝系统中通信数据通过基站接收或者发送的方式不同，因此具有更高的频谱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定义了两种传输模式，分别记为：模式A和模式B。本申请实施例可以应用于模式A和/或模式B。
模式A：终端的传输资源是由基站分配的，终端根据基站分配的资源在侧行链路上进行数据的发送；基站可以为终端分配单次传输的资源，也可以为终端分配半静态传输的资源。如图1所示，终端位于网络覆盖范围内，网络为终端分配侧行传输使用的传输资源。
模式B：终端在资源池中选取一个资源进行数据的传输。如图3所示，终端位于小区覆盖范围外，终端在预配置的资源池中自主选取传输资源进行侧行传输；或者，如图1所示，终端在网络配置的资源池中自主选取传输资源进行侧行传输。
需要说明的是，在NR-V2X中，用户可能处在一个混合的模式下，即既可以使用模式A进行资源的获取，又同时可以使用模式B进行资源的获取。
在NR-V2X中，支持自动驾驶，因此对车辆之间数据交互提出了更高的要求，如更高的吞吐量、更低的时延、更高的可靠性、更大的覆盖范围、更灵活的资源分配等。
在长期演进车辆到其他设备(Long Term Evolution Vehicle to Everything，LTE-V2X)中，支持广播传输方式，在NR-V2X中，引入了单播和组播的传输方式。对于单播传输，其接收端终端只有一个终端，如图4所示，UE1、UE2之间进行单播传输；对于组播传输，其接收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，如图5所示，UE1、UE2、UE3和UE4构成一个通信组，其中UE1发送数据，该组内的其他终端设备都是接收端终端；对于广播传输方式，其接收端是发送端终端周围的任意一个终端，如图6所示，UE1是发送端终端，其周围的其他终端，UE2-UE6都是接收端终端。
在侧行传输系统中引入了资源池，所谓资源池即传输资源的集合，无论是网络配置的传输资源还是终端自主选取的传输资源，都是资源池中的资源。可以通过预配置或网络配置的方式配置资源池，可以配置一个或多个资源池。资源池又分为发送资源池和接收资源池。发送资源池即该资源池中的传输资源用于发送侧行数据；接收资源池即终端在该资源池中的传输资源上接收侧行数据。
在LTE-V2X中，PSCCH和其调度的PSSCH在同一子帧内传输，但是频分复用(Frequency-division multiplexing，FDM)的方式复用，即PSCCH和其关联的PSSCH占据不同的物理资源块(physical resource block，PRB)。但是这样会导致比较大的时延，因为接收端只有在该子帧内结束的时候才能把PSCCH的数据都接收下来，然后开始进行PSCCH解调。在NR-V2X中，为了降低时延，PSCCH和PSSCH采用如图7所示的复用方式。
在NR-V2X中，PSSCH的频域资源分配以子信道(sub-channel)为粒度，一个子信道包括连续的N1个PRB，PSSCH的频域资源分配信息由起始子信道索引和分配的子信道个数确定。PSSCH和其关联的PSCCH的频域起始位置是对齐的，PSCCH在PSSCH的第一个子信道中传输，占据该子信道中的N2(N2≤N1)个PRB，其中N1、N2是可配置的参数，N1取值范围是{10,12,15,20,25,50,75,100}，N2取值范围是{10,12,15,20,25}。在时域上，NR-V2X中，PSSCH和其关联的PSCCH在相同的时隙中传输，PSCCH占据2个或3个时域符号，PSCCH从时隙的第2个符号开始(第一个符号通常用作自动增益控制(Auto gain control，AGC)，最后一个符号通过用作保护间隔(Guard Period，GP))。
在NR-V2X中引入2阶SCI，第一阶SCI承载在PSCCH中，用于指示PSSCH的传输资源、预留资源信息、调制编码方案(Modulation and Coding Scheme，MCS)等级、优先级等信息，第二阶SCI在PSSCH的资源中发送，利用PSSCH的解调参考信号(Demodulation Reference Signal，DMRS)进行解调，用于指示源(Source)标识(Identity，ID)、目标(Destination)ID、混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)ID、新数据指示(New Data Indicator，NDI)等用于数据解调的信息。第二阶SCI从PSSCH的第一个DMRS符号开始映射，先频域再时域映射，如图8所示，PSCCH占据3个符号(符号1、符号2、符号3)，PSSCH的DMRS占据符号4、符号11，第二阶SCI从符号4开始映射，在符号4上和DMRS频分复用，第二阶SCI映射到符号4、符号5、符号6，第二阶SCI占据的资源大小取决于第二阶SCI的比特数。
NR-V2X中，终端选取传输资源进行数据传输时，可以选取多个传输资源，该多个传输资源用于数据的首次传输和重传，终端可以通过在SCI中指示预留的资源，以避免其他终端选用该资源。在NR-V2X中，支持用于同一个传输块(Transport block，TB)的重传资源预留也支持用于不同TB的资源预留。具体的，终端发送的指示一个TB传输的侧行控制信息(SCI 1-A)中包含“时域资源分配(time resource assignment)”和“频域资源分配(frequency resource assignment)”域，这两个域指示用于该TB当前传输和重传的N个时频资源(包括当前发送所用的资源)。其中N≤N max，在NR-V2X 中，N max等于2或3。例如，如图9所示，终端会在指示TB1初传的PSCCH中指示初传、重传1和重传2的时频资源位置(N＝3)，即预留重传1与重传2的时频资源，同时预留下一个周期内的3个传输资源。
在LTE-V2X中，终端选取了传输资源就会在这些资源上进行数据发送，但是有可能存在两个终端选取了相同的传输资源，此时会发生资源冲突，降低系统性能，为了解决这个问题，在NR-V2X中引入了预抢占(pre-emption)和重评估(re-evaluation)机制，使得终端在使用选取的资源之前可以判断是否跟其他终端存在资源冲突，如果没有冲突，可以继续使用选取的传输资源，如果有资源冲突，需要根据相应的机制进行避让和资源重选，以避免资源冲突。
NR-V2X支持重评估(re-evaluation)机制。当终端完成资源选择后，对于已经选择但未通过发送侧行控制信息指示的资源，仍然有可能被突发非周期业务的其他终端预留，导致资源碰撞。针对该问题，提出了re-evaluation机制，即终端在完成资源选择后仍然持续侦听侧行控制信息，并对已选但未指示的资源进行至少一次的再次评估。
如图10所示，资源w、x、y、z、v是终端已经选择的时频资源，资源x位于时隙m。对于终端即将在资源x发送侧行控制信息进行首次指示的资源y和z(资源x之前已经被资源w中的侧行控制信息指示)。终端至少在时隙m-T 3执行一次资源侦听，即确定资源选择窗与侦听窗，并对资源选择窗内的资源进行资源排除，得到候选资源集合。如果资源y或z不在候选资源集合中，则终端重选资源y和z中不在候选资源集合中的时频资源，也可以重选任何已经选择但未通过发送侧行控制信息指示的资源，例如资源y、z和v中的任意几个资源。上述T 3取决于终端的处理能力。
NR-V2X支持预抢占(pre-emption)机制，即资源抢占机制。在NR-V2X中，关于pre-emption机制的结论都是以被抢占终端的角度描述的。在完成资源选择后终端仍然持续侦听侧行控制信息，如果已经选择的并且已经通过发送侧行控制信息指示的时频资源满足以下三个条件，则触发资源重选：
条件1，侦听到的侧行控制信息中预留的资源与终端已选且已指示的资源重叠，包括全部重叠和部分重叠；
条件2，终端侦听到的侧行控制信息对应的PSCCH的参考信号接收功率(Reference Signal Received Power，RSRP)或该PSCCH调度的PSSCH的RSRP大于侧行RSRP阈值；
条件3，侦听到的侧行控制信息中携带的优先级比终端待发送数据的优先级高。
如图11所示，资源w、x、y、z、v是终端已经选择的时频资源，资源x位于时隙m。对于终端即将在时隙m发送侧行控制信息指示的且已经被终端之前发送的侧行控制信息指示的资源x和y。终端至少在时隙m-T 3执行一次资源侦听，确定候选资源集合。如果资源x或y不在候选资源集合中(满足上述条件1和2)，进一步判断是否是由于携带高优先级的侧行控制信息的指示导致资源x或y不在候选资源集合中(满足上述条件3)，如果是，则终端执行资源重新，重新选取x和y中满足上述3个条件的时频资源。
在NR-V2X系统中，发端引入了预抢占(pre-emption)机制和重评估(re-evaluation)机制，即使发端设备选取了传输资源并且通过SCI指示预留了该传输资源，发端设备也需要根据侦听判断是否能够用选取的资源进行数据传输，如果满足pre-emption的条件，发端设备会重选资源。而对于收端设备，即使接收到了发端设备发送的SCI可以获知该发端设备预留的传输资源信息，但是由于发端设备可能会重选资源，因此，收端设备需要在每个时隙去检测PSCCH，以避免由于发端设备重选了资源而造成收端设备漏检发端设备的数据。然而，对于具有节能需求的终端而言，如果每个时隙都去检测是否存在PSCCH，会导致能耗过大，不利于终端的节能需求。
此外，由于NR-V2X系统中PSCCH和其关联的PSSCH在同一时隙中传输，收端设备在一个时隙中接收数据时，会先根据接收下来的前几个符号上的数据去检测是否有PSCCH，然后再去检测第二阶SCI，根据第二阶SCI中的目标标识信息确定该侧行数据是否是发给该收端设备的，由于检测PSCCH和第二阶SCI需要处理时间，在解码出第二阶SCI前，收端设备无法判断当前时隙是否有自己需要接收的PSSCH，因此会继续接收数据，但是如果该时隙中没有该收端设备需要接收的PSSCH，那么收端设备接收下来的数据都是无用的，此时也会造成收端设备的能耗浪费。
基于上述问题，本申请提出了一种终端节能的方案，能够实现终端节能。
以下通过具体实施例详述本申请的技术方案。
图12是根据本申请实施例的节能的方法200的示意性流程图，如图12所示，该方法200可以包括如下内容中的至少部分内容：
S210，发端设备在第一时间单元上发送第一PSCCH，以及在第二时间单元上发送第一PSSCH，其中，该第一PSSCH是由该第一PSCCH调度的；
S220，收端设备在第一时间单元上接收第一PSCCH，以及在第二时间单元上接收第一PSSCH。
在本申请实施例中，PSCCH和其调度的PSSCH位于不同的时隙。换句话说，在本申请实施例中，PSCCH可以跨时隙调度PSSCH。
可选地，在本申请实施例中，时间单元可以是时隙，即该第一时间单元可以是第一时隙，该第二时间单元可以是第二时隙。当然，时间单元也可以是其他粒度的时间信息，本申请对此并不限定。
需要说明的是，在本申请实施例中，由于第一PSCCH调度的第一PSSCH在第二时间单元上发送，收端设备只需在第一时间单元中接收第一PSCCH所在的符号上的数据即可，无需接收第一时间单元中剩余符号上的数据，因此可以实现终端节能。
应理解，该第一时间单元与该第二时间单元为不同的时隙，且该第二时间单元位于该第一时间单元之后。即该发端设备先在该第一时间单元上发送该第一PSCCH，然后在该第二时间单元上发送该第一PSSCH。
可选地，作为示例1，该第一PSCCH中承载有第一阶SCI，且该第一阶SCI包括第一地址信息，该第一地址信息用于确定该第一阶SCI调度的数据的目标设备。相应的，该收端设备可以根据该第一地址信息，确定是否接收该第一阶SCI调度的数据。
需要说明的是，在示例1中，第一阶SCI携带第一地址信息，即目标ID，也即第一PSCCH携带第一地址信息，收端设备检测完第一PSCCH之后即可判断第一PSSCH调度的数据是否是发给自己的，避免接收无用数据，从而达到节能的效果。
可选地，在示例1中，该发端设备在该第二时间单元上发送第二阶SCI，该第二阶SCI占用该第一PSSCH的资源。
可选地，作为示例2，该发端设备在该第一时间单元上发送第二阶SCI，且该第二阶SCI包括第一地址信息，即目标ID，该第一地址信息用于确定第一阶SCI调度的数据的目标设备，该第一阶SCI承载在该第一PSCCH中。相应的，该收端设备可以根据该第一地址信息，确定是否接收该第一阶SCI调度的数据。
需要说明的是，在示例2中，第二阶SCI携带第一地址信息，但由于发端设备在第一时间单元上发送第二阶SCI，也即，收端设备在第一时间单元上接收到携带第一地址信息的第二阶SCI即可判断第二时间单元上发送的第一PSSCH调度的数据是否是发给自己的，从而避免接收无用数据以达到节能的效果。
可选地，在示例2中，该第二阶SCI占用一个子信道，且该子信道中不包括该第一PSSCH的数据部分。
在上述示例1和示例2中，例如，该收端设备根据该第一地址信息判断该第一阶SCI调度的数据是发给自己的，或者，该收端设备根据该第一地址信息判断该第一阶SCI调度的数据可能是发给自己的，此种情况下，该收端设备确定接收该第一阶SCI调度的数据。
在上述示例1和示例2中，又例如，该收端设备根据该第一地址信息判断该第一阶SCI调度的数据不是发给自己的，或者，该收端设备根据该第一地址信息判断该第一阶SCI调度的数据不可能是发给自己的，此种情况下，该收端设备确定不接收该第一阶SCI调度的数据。
可选地，在上述示例1和示例2中，该第一地址信息包括高层生成的目标地址信息中的部分或者全部。
可选地，对于单播传输，该目标地址信息可以是收端设备ID；对于组播传输，该目标地址信息可以是收端设备所在的通信组的组ID；对于广播传输，该目标地址信息可以是业务类型ID。
需要说明的是，高层生成的目标地址信息通常是24比特，例如，该24比特的目标地址信息可以截短为16比特作为该第一地址信息，剩余的8比特在PSSCH的媒体接入控制控制元素(Media Access Control Control Element，MAC CE)中承载。又例如，第一阶SCI携带该第一地址信息，该24比特的目标地址信息可以截短为2比特或者4比特作为该第一地址信息，在第二阶SCI中放16比特目的地址，通过两者结合(比特长度为18或20比特)，再结合MAC CE中的6比特或4比特，最终确定数据是否发送给收端设备的。此外，该第一地址信息中携带的目的地址信息比特数越多，越能准确判断该数据是否发给收端设备的，例如，如果该第一地址信息中放置24比特，则可以准确判断是否是发给收端设备，如果该第一地址信息中放置4比特，则只能区分1/16的用户。
具体地，该第一地址信息可以是从高层生成的目标地址信息的末端截取的部分，该第一地址信息也可以是从高层生成的目标地址信息的首端截取的部分，该第一地址信息还可以是随机从高层生成的目标地址信息中截取的部分。
因此，收端设备可以根据第一地址信息判断是否需要接收第一PSCCH调度的第一PSSCH，而无需检测第二阶SCI后才能判断，从而可以更快、更早的确定是否需要接收数据，可以更早的避免接收无用数据，达到节能效果。
在本申请实施例中，第一阶SCI承载在PSCCH中，可以用于指示PSCCH调度的PSSCH的传输资源、预留资源信息、MCS等级、优先级等信息中的部分或者全部。第二阶SCI可以用于指示源ID、目标ID、HARQ ID、NDI等用于数据解调的信息中的部分或者全部。此外，第一阶SCI占据的资源大小取决于第一阶SCI的比特数。第二阶SCI占据的资源大小取决于第二阶SCI的比特数。
需要说明的是，在现有的NR-V2X中，PSCCH及其调度的PSSCH在一个时隙中传输，由于终端在检测出PSCCH前无法确定是否有需要接收的数据，因此需要在该时隙内持续接收，直至PSCCH解调成功，才能判断是否有待接收的数据，如果没有，则丢弃已经接收的数据，这样会造成能耗浪费。如图13所示，发端设备在时隙内的符号1、符号2、符号3上发送PSCCH，收端设备在符号1、符号2、符号3接收PSCCH，PSCCH的检测时间需要3个正交频分复用(Orthogonal frequency-division multiplexing，OFDM)符号的时间，在PSCCH检测成功之前，收端设备需要继续接收符号4、符号5、符号6上的数据，如果PSCCH检测完之后，发现该PSCCH调度的PSSCH不是该收端设备需要接收的数据，则该收端设备停止接收后面的数据，并且将已经接收的符号4、符号5、符号6上的数据丢弃，此时造成没必要的数据接收。
针对上述图13中存在的问题，上述示例1的解决方案可以如图14所示，发端设备在时隙0发送第一PSCCH，以及在时隙4发送该第一PSCCH调度的第一PSSCH。在时隙0发送的第一PSCCH，占据符号1、符号2、符号3，其调度的第一PSSCH在时隙4发送，因此，在时隙0中，当收端设备接收完符号1、符号2、符号3上的数据之后，不需要再接收时隙0中剩余符号上的数据，因为无论时隙0中是否有发送给该收端设备的侧行数据，都不会在时隙0中发送，因此可以达到省电的目的。
针对上述图13中存在的问题，上述示例2的解决方案可以如图15所示，发端设备在时隙n发送第一PSCCH，指示该时隙n中1个子信道的资源，发端设备在该子信道中发送第二阶SCI，并且在第一PSCCH中指示第一PSSCH所在的时隙n+k以及频域资源，还指示了重传资源所在的时隙n+p和n+q；因此收端设备在时隙n接收第一PSCCH以及第二阶SCI确定其调度的第一PSSCH是否是发送给该收端设备的，如果是，则该收端设备在时隙n+k上接收第一PSSCH，而无需在时隙[n+1,n+k-1]的时隙上接收第一PSSCH，从而可以达到省电的目的。
可选地，在一些实施例中，该第一阶SCI中包括优先等级，该优先等级为第一值，该第一值表示最高优先等级。相应的，该收端设备可以根据该第一值，确定仅在该发端设备预留的传输资源上检测该发端设备发送的数据。
需要说明的是，当其他设备的优先等级高于发端设备的优先等级时，其他设备有可能会抢占该发端设备的资源，而把该发端设备的优先等级设置为最高，就不会被抢占。也即，由于该第一值表示最高优先等级，该第一阶SCI所调度资源不会被其他设备抢占。
可选地，在另一些实施例中，该收端设备获取资源池配置信息，该资源池配置信息中包括第三指示信息，该第三指示信息用于确定不支持预抢占功能；以及该收端设备根据该第三指示信息，确定仅在该发端设备预留的传输资源上检测该发端设备发送的数据。
需要说明的是，当满足下面的条件时才会发生预抢占(pre-emption)：
prioRX<p_preemption，且prioTX>prioRX；
其中p_preemption是资源池配置参数；prioTX是侦听资源的终端的优先等级；prioRX是侦听终端接收到的其他终端的优先等级；优先等级越高，表示优先级越低；如果将p_preemption设置为0，即表示该资源池不支持pre-emption功能。
可选地，在一些实施例中，该第一阶SCI中包括第二指示信息，该第二指示信息用于指示该第一时间单元与该第二时间单元之间的时隙间隔。相应的，该收端设备可以基于该第二指示信息确定该第一时间单元与该第二时间单元之间的时隙间隔。从而，收端设备可以准确接收第二时间单元上发送的第一PSSCH。
需要说明的是，该第二指示信息可以是该第一阶SCI中的一个信息域。
可选地，在另一些实施例中，该第一阶SCI中包括第一索引，该第一索引在第一对应关系中对应第一时间单元间隔，该第一时间单元间隔为该第一时间单元与该第二时间单元之间的时隙间隔。
可选地，该第一对应关系为预配置或者协议约定的，或者，该第一对应关系为网络设备配置的，或者，该第一对应关系为资源池配置参数，或者，该第一对应关系是发端设备和收端设备通过PC5-无线资源控制(Radio Resource Control，RRC)信令交互的。
需要说明的是，该第一对应关系例如可以是索引和时隙间隔的对应关系表格，如下表1所示。在表1中，索引0对应时隙间隔0，即表示第一PSCCH及其调度的第一PSSCH在同一时隙，即NR-V2X中现有的机制；索引2表示第一PSCCH及其调度的第一PSSCH的时隙间隔是2个时隙，即在时隙n发送的第一PSCCH，其调度的第一PSSCH在时隙n+2；索引6表示第一PSCCH及其调度的第一PSSCH 的时隙间隔是8个时隙，即在时隙n发送的第一PSCCH，其调度的第一PSSCH在时隙n+8。
表1
索引 0 1 2 3 4 5 6 7
时隙间隔 0 1 2 3 4 6 8 16
可选地，在一些实施例中，该第一时间单元上发送的PSCCH调度的是PSSCH的首次传输。
可选地，在一些实施例中，该发端设备在该第二时间单元上发送第二PSCCH，该第二PSCCH用于调度第二PSSCH，该第二PSCCH占用该第一PSSCH的资源。
可选地，该第一PSSCH和该第二PSSCH传输相同的数据块。
可选地，该第一阶SCI中包括第一指示信息，或者，该第二阶SCI中包括第一指示信息，其中，该第一指示信息用于确定该发端设备在该第二时间单元上是否发送该第二PSCCH。相应的，该收端设备根据该第一指示信息，确定是否在该第二时间单元上接收该第二PSCCH。可选地，该第一指示信息用于确定该发端设备在该第二时间单元上是否发送该第二PSCCH所关联的第二阶SCI。或者，可选地，该第一指示信息用于确定该发端设备在该第二时间单元上是否只发送该第一PSSCH。或者，可选地，该第一指示信息用于确定该发端设备在该第一PSSCH的资源内是否传输第二PSCCH和与第二PSCCH关联的第二阶SCI。
可选地，在一些实施例中，第n次传输的PSSCH与第n+1次传输的PSCCH位于同一时隙中，n为整数，且n≥1。
例如，如图16所示，发端设备在时隙n发送PSCCH，指示该时隙n中1个子信道的资源，在该子信道中发送第二阶SCI，并且在PSCCH中指示PSSCH所在的时隙n+k以及频域资源，还指示了重传资源所在的时隙n+p；因此收端设备在时隙n接收PSCCH以及第二阶SCI确定其调度的PSSCH是否是发送给该收端设备的，如果是，则该收端设备在时隙n+k上接收PSSCH，而无需在时隙[n+1,n+k-1]的时隙上接收PSSCH。发端设备在时隙n+k中发送时隙n的PSCCH调度的PSSCH，以及重传的PSSCH所对应的PSCCH，该PSCCH指示其对应的PSSCH所在的时隙为n+p，并且指示下一次重传资源所在的时隙n+q。同理，发端设备在时隙n+p中发送时隙n+k的PSCCH调度的PSSCH，以及重传的PSSCH所对应的PSCCH，该PSCCH指示其对应的PSSCH所在的时隙为n+q；发端设备在时隙n+q中发送时隙n+p的PSCCH调度的PSSCH，如果发端设备不需要再次进行重传，则在时隙n+q中不发送PSCCH，即最后一个时隙n+q中只包括PSSCH，不包括PSCCH。
可选地，在一些实施例中，该发端设备预留的传输资源位于该第二时间单元，或者，该发端设备预留的传输资源位于该第二时间单元之后。
可选地，在一些实施例中，当该发端设备预留的资源被抢占，该发端设备在该第二时间单元之后重新选取预留资源。也就是说，当发端设备预留的资源被抢占，所述发端设备重新选取的资源位于所述第二时间单元之后。例如，该第一PSSCH的资源被抢占，该发端设备重新选取用于传输该第一PSSCH的传输资源，该重新选取的传输资源位于该第二时间单元之后。
因此，在本申请实施例中，由于第一PSCCH调度的第一PSSCH在第二时间单元上发送，收端设备只需在第一时间单元中接收第一PSCCH所在的符号上的数据即可，无需接收第一时间单元中剩余符号上的数据，因此可以实现终端节能。进一步的，即使发端设备发生资源重选，重新选取的资源也肯定在第二时间单元之后，因此，收端设备在第一时间单元上接收第一PSCCH，确定其调度的第一PSSCH是发给该终端的，在第二时间单元上接收该第一PSSCH，而无需在第一时间单元和第二时间单元之间去检测PSCCH和PSSCH，从而可以实现终端节能。
图17是根据本申请实施例的节能的方法300的示意性流程图，如图17所示，该方法300可以包括如下内容中的至少部分内容：
S310，发端设备在第一时间单元上发送第一阶SCI和第二阶SCI，其中，该第一阶SCI承载在PSCCH中，该第二阶SCI占用PSSCH资源，该第二阶SCI从该第一时间单元的第二个侧行符号开始映射，该PSSCH是由该PSCCH调度的；
S320，收端设备在该第一时间单元上接收该第一阶SCI和该第二阶SCI。
在本申请实施例中，将第二阶SCI从第一时间单元的第二个侧行符号开始映射，收端设备可以尽早的检测第二阶SCI，从而基于第二阶SCI中的目标标识信息确定侧行数据是否是发给收端设备的，避免没必要的数据接收，达到终端省电的目的。
可选地，在本申请实施例中，时间单元可以是时隙，即该第一时间单元可以是第一时隙。当然，时间单元也可以是其他粒度的时间信息，本申请对此并不限定。
需要说明的是，该第二阶SCI也可以从该第一时间单元的第三个侧行符号开始映射也能在一定程 度上实现终端省电的目的。或者，该第二阶SCI还可以从该第一时间单元的第四个侧行符号开始映射，也能在一定程度上实现终端省电的目的。
在本申请实施例中，第一阶SCI承载在PSCCH中，可以用于指示PSCCH调度的PSSCH的传输资源、预留资源信息、MCS等级、优先级等信息中的部分或者全部。第二阶SCI在PSSCH的资源中发送，利用PSSCH的DMRS进行解调，可以用于指示源ID、目标ID、HARQ ID、NDI等用于数据解调的信息中的部分或者全部。此外，第一阶SCI占据的资源大小取决于第一阶SCI的比特数。第二阶SCI占据的资源大小取决于第二阶SCI的比特数。
需要说明的是，在现有的NR-V2X中，第二阶SCI从第一个PSSCH DMRS符号开始映射，这主要是因为将第二阶SCI映射到DMRS符号或旁边的符号，信道估计准确度高，因此具有更好的解调性能，但是，如果第一个PSSCH DMRS符号的位置比较靠后，收端设备就需要接收多个符号上的数据，并且在接收完第二阶SCI最后一个符号后才能开始解调该第二阶SCI，而解调第二阶SCI也需要时间，在解调之前还要持续的接收数据，如果解调完第二阶SCI确定不是发送给自己的数据，则已经接收的数据都是无用数据，需要丢弃，因此造成能耗浪费，如下图18所示：PSCCH在时隙内的符号1、符号2、符号3上发送，第二阶SCI在符号4、符号5、符号6上发送，检测第二阶SCI需要3个OFDM符号的时间，在第二阶SCI检测成功之前，收端设备需要继续接收符号7、符号8、符号9上的数据，如果第二阶SCI检测完，该PSCCH调度的PSSCH不是该收端设备需要接收的数据，则该收端设备停止接收后面的数据，并且将已经接收的符号7、符号8、符号9上的数据丢弃，此时造成没必要的数据接收。而且该收端设备已经接收了该时隙上大部分符号上的数据，即使后面符号10、符号11、符号12上不继续接收数据，也不会带来明显的节能效果。
针对上述图18中存在的问题，本申请实施例的解决方案可以如图19所示，第二阶SCI从第二个侧行符号开始映射，映射到符号1、符号2、符号3，由于需要根据PSSCH DMRS解调第二阶SCI，因此收端设备在符号4收到DMRS后才能开始解调第二阶SCI，检测时间需要3个符号，因此在符号7上可以检测出第二阶SCI，进而判断是否是发送给该收端设备的数据，如果不是，则该收端设备无需继续接收符号8-12上的数据，因此，相对于图18中的示例，具有省电的效果。
需要说明的是，本申请技术方案考虑到具有节能需求的终端通常都是手持终端，如行人终端(Pedestrian UE，P-UE)等，其运动速度很慢，因此信道在一个时隙内变化也很慢，虽然第二阶SCI距离DMRS符号远，但是对检测性能影响不大。
可选地，该第一阶SCI包括第一地址信息，该第一地址信息用于确定该第一阶SCI调度的数据的目标设备。相应的，该收端设备根据该第一地址信息，确定是否接收该第一阶SCI调度的数据。
可选地，该第一地址信息包括高层生成的目标地址信息中的部分或者全部。
可选地，对于单播传输，该目标地址信息可以是收端设备ID；对于组播传输，该目标地址信息可以是收端设备所在的通信组的组ID；对于广播传输，该目标地址信息可以是业务类型ID。
需要说明的是，高层生成的目标地址信息通常是24比特，例如，该24比特的目标地址信息可以截短为16比特作为该第一地址信息，剩余的8比特在PSSCH的MAC CE中承载。又例如，第一阶SCI携带该第一地址信息，该24比特的目标地址信息可以截短为2比特或者4比特作为该第一地址信息，在第二阶SCI中放16比特目的地址，通过两者结合(比特长度为18或20比特)，再结合MAC CE中的6比特或4比特，最终确定数据是否发送给收端设备的。此外，该第一地址信息中携带的目的地址信息比特数越多，越能准确判断该数据是否发给收端设备的，例如，如果该第一地址信息中放置24比特，则可以准确判断是否是发给收端设备，如果该第一地址信息中放置4比特，则只能区分1/16的用户。
具体地，该第一地址信息可以是从高层生成的目标地址信息的末端截取的部分，该第一地址信息也可以是从高层生成的目标地址信息的首端截取的部分，该第一地址信息还可以是随机从高层生成的目标地址信息中截取的部分。
因此，收端设备可以根据第一阶SCI中的第一地址信息判断是否需要接收第一PSCCH调度的第一PSSCH，而无需检测第二阶SCI后才能判断，从而可以更快、更早的确定是否需要接收数据，可以更早的避免接收无用数据，达到节能效果。
图20是根据本申请实施例的节能的方法400的示意性流程图，如图20所示，该方法400可以包括如下内容中的至少部分内容：
S410，发端设备在第一时间单元上发送第一阶SCI和第二阶SCI，其中，该第一阶SCI承载在PSCCH中，该第二阶SCI占用PSSCH资源，该第一阶SCI包括指示信息，该指示信息用于指示该第二阶SCI传输资源的第一个时域符号的位置，该PSSCH是由该PSCCH调度的；
S420，收端设备在该第一时间单元上接收该第一阶SCI；
S430，该收端设备根据该指示信息在该第一时间单元上接收该第二阶SCI。
可选地，该第一个时域符号的位置为该第一时间单元的第二个侧行符号，或者，该第一个时域符号的位置为该第一时间单元的第一个PSSCH DMRS符号。
可选地，在本申请实施例中，时间单元可以是时隙，即该第一时间单元可以是第一时隙。当然，时间单元也可以是其他粒度的时间信息，本申请对此并不限定。
在本申请实施例中，第一个时域符号的位置可以为第一时间单元的第二个侧行符号(方案1)和第一个时域符号的位置可以为第一时间单元的第一个PSSCH DMRS符号(方案2)，即当两种方案都存在时，收端设备可以基于第一阶SCI中的指示信息判断第二阶SCI映射的第一个侧行符号的位置。
可选地，该第一阶SCI包括第一地址信息，该第一地址信息用于指示该第一阶SCI调度的数据的目标设备。相应的，该收端设备根据该第一地址信息，确定是否接收该第一阶SCI调度的数据。
可选地，该第一地址信息包括高层生成的目标地址信息中的部分或者全部。
可选地，对于单播传输，该目标地址信息可以是收端设备ID；对于组播传输，该目标地址信息可以是收端设备所在的通信组的组ID；对于广播传输，该目标地址信息可以是业务类型ID。
需要说明的是，高层生成的目标地址信息通常是24比特，例如，该24比特的目标地址信息可以截短为16比特作为该第一地址信息，剩余的8比特在PSSCH的MAC CE中承载。又例如，第一阶SCI携带该第一地址信息，该24比特的目标地址信息可以截短为2比特或者4比特作为该第一地址信息，在第二阶SCI中放16比特目的地址，通过两者结合(比特长度为18或20比特)，再结合MAC CE中的6比特或4比特，最终确定数据是否发送给收端设备的。此外，该第一地址信息中携带的目的地址信息比特数越多，越能准确判断该数据是否发给收端设备的，例如，如果该第一地址信息中放置24比特，则可以准确判断是否是发给收端设备，如果该第一地址信息中放置4比特，则只能区分1/16的用户。
具体地，该第一地址信息可以是从高层生成的目标地址信息的末端截取的部分，该第一地址信息也可以是从高层生成的目标地址信息的首端截取的部分，该第一地址信息还可以是随机从高层生成的目标地址信息中截取的部分。
因此，在本申请实施例中，发端设备在第一阶SCI中指示第二阶SCI传输资源的第一个时域符号的位置，从而收端设备可以准确接收第二阶SCI，达到终端省电的目的。进一步的，在本申请实施例中，第一个时域符号的位置可以为第一时间单元的第二个侧行符号(方案1)和第一个时域符号的位置可以为第一时间单元的第一个PSSCH DMRS符号(方案2)，即当两种方案都存在时，收端设备可以基于第一阶SCI中的指示信息判断第二阶SCI映射的第一个侧行符号的位置。
上文结合图12至图20，详细描述了本申请的方法实施例，下文结合图21至图29，详细描述本申请的装置实施例，应理解，装置实施例与方法实施例相互对应，类似的描述可以参照方法实施例。
图21示出了根据本申请实施例的发端设备500的示意性框图。如图21所示，该发端设备500包括：通信单元510，用于在第一时间单元上发送第一PSCCH，以及在第二时间单元上发送第一PSSCH，其中，该第一PSSCH是由该第一PSCCH调度的。
可选地，该第一PSCCH中承载有第一阶SCI，且该第一阶SCI包括第一地址信息，该第一地址信息用于确定该第一阶SCI调度的数据的目标设备。
可选地，该通信单元510还用于在该第二时间单元上发送第二阶SCI，该第二阶SCI占用该第一PSSCH的资源。
可选地，该通信单元510还用于在该第一时间单元上发送第二阶SCI，且该第二阶SCI包括第一地址信息，该第一地址信息用于确定第一阶SCI调度的数据的目标设备，该第一阶SCI承载在该第一PSCCH中。
可选地，该第二阶SCI占用一个子信道，且该子信道中不包括该第一PSSCH的数据部分。
可选地，该通信单元510还用于在该第二时间单元上发送第二PSCCH，该第二PSCCH用于调度第二PSSCH，该第二PSCCH占用该第一PSSCH的资源。
可选地，该第一PSSCH和该第二PSSCH传输相同的数据块。
可选地，该第一阶SCI中包括第一指示信息，或者，该第二阶SCI中包括第一指示信息，其中，该第一指示信息用于指示该发端设备在该第二时间单元上是否发送该第二PSCCH。
可选地，该第一地址信息包括高层生成的目标地址信息中的部分或者全部。
可选地，该第一阶SCI中包括优先等级，该优先等级为第一值，该第一值表示最高优先等级。
可选地，该第一阶SCI中包括第二指示信息，该第二指示信息用于确定该第一时间单元与该第二时间单元之间的时隙间隔。
可选地，该第一阶SCI中包括第一索引，该第一索引在第一对应关系中对应第一时间单元间隔， 该第一时间单元间隔为该第一时间单元与该第二时间单元之间的时隙间隔。
可选地，该第一对应关系为预配置或者协议约定的，或者，该第一对应关系为网络设备配置的，或者，该第一对应关系为资源池配置参数，或者，该第一对应关系是该发端设备和收端设备通过PC5-RRC信令交互的。
可选地，该第一时间单元上发送的PSCCH调度的是PSSCH的首次传输。
可选地，第n次传输的PSSCH与第n+1次传输的PSCCH位于同一时隙中，n为整数，且n≥1。
可选地，该发端设备预留的传输资源位于该第二时间单元，或者，该发端设备预留的传输资源位于该第二时间单元之后。
可选地，该发端设备还包括：处理单元520，其中，当该发端设备预留的资源被抢占，该处理单元520用于在该第二时间单元之后重新选取预留资源。
可选地，在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解，根据本申请实施例的发端设备500可对应于本申请方法实施例中的终端设备，并且发端设备500中的各个单元的上述和其它操作和/或功能分别为了实现图12所示方法200中发端设备的相应流程，为了简洁，在此不再赘述。
图22示出了根据本申请实施例的收端设备600的示意性框图。如图22所示，该收端设备600包括：通信单元610，用于在第一时间单元上接收第一物理侧行控制信道PSCCH，以及在第二时间单元上接收第一物理侧行共享信道PSSCH，其中，该第一PSSCH是由该第一PSCCH调度的。
可选地，该第一PSCCH中承载有第一阶侧行控制信息SCI，且该第一阶SCI包括第一地址信息，该第一地址信息用于确定该第一阶SCI调度的数据的目标设备；
该收端设备600还包括：
处理单元620，用于根据该第一地址信息，确定是否接收该第一阶SCI调度的数据。
可选地，该通信单元610还用于在该第二时间单元上接收第二阶SCI，该第二阶SCI占用该第一PSSCH的资源。
可选地，该收端设备600还包括：处理单元620，
该通信单元610还用于在该第一时间单元上接收第二阶SCI，且该第二阶SCI包括第一地址信息，该第一地址信息用于确定第一阶SCI调度的数据的目标设备，该第一阶SCI承载在该第一PSCCH中；
该处理单元620用于根据该第一地址信息，确定是否接收该第一阶SCI调度的数据。
可选地，该第二阶SCI占用一个子信道，且该子信道中不包括该第一PSSCH的数据部分。
可选地，该通信单元610还用于在该第二时间单元上接收第二PSCCH，该第二PSCCH用于调度第二PSSCH，该第二PSCCH占用该第一PSSCH的资源。
可选地，该第一PSSCH和该第二PSSCH传输相同的数据块。
可选地，该第一阶SCI中包括第一指示信息，或者，该第二阶SCI中包括第一指示信息，其中，该第一指示信息用于确定发端设备在该第二时间单元上是否发送该第二PSCCH；
该收端设备600还包括：
处理单元620，用于根据该第一指示信息，确定是否在该第二时间单元上接收该第二PSCCH。
可选地，该第一地址信息包括高层生成的目标地址信息中的部分或者全部。
可选地，该第一阶SCI中包括优先等级，该优先等级为第一值，该第一值用于表示最高优先等级；
该收端设备600还包括：
处理单元620，用于根据该第一值，确定仅在该发端设备预留的传输资源上检测该发端设备发送的数据。
可选地，该收端设备还包括：处理单元620，其中，
该通信单元610还用于获取资源池配置信息，该资源池配置信息中包括第三指示信息，该第三指示信息用于确定不支持预抢占功能；
该处理单元620用于根据该第三指示信息，确定仅在该发端设备预留的传输资源上检测该发端设备发送的数据。
可选地，该第一阶SCI中包括第二指示信息，该第二指示信息用于指示该第一时间单元与该第二时间单元之间的时隙间隔。
可选地，该第一阶SCI中包括第一索引，该第一索引在第一对应关系中对应第一时间单元间隔，该第一时间单元间隔为该第一时间单元与该第二时间单元之间的时隙间隔。
可选地，该第一对应关系为预配置或者协议约定的，或者，该第一对应关系为网络设备配置的，或者，该第一对应关系为资源池配置参数，或者，该第一对应关系是该发端设备和收端设备通过PC5- RRC信令交互的。
可选地，该第一时间单元上发送的PSCCH调度的是PSSCH的首次传输。
可选地，第n次传输的PSSCH与第n+1次传输的PSCCH位于同一时隙中，n为整数，且n≥1。
可选地，发端设备预留的传输资源位于该第二时间单元，或者，发端设备预留的传输资源位于该第二时间单元之后。
可选地，当发端设备预留的资源被抢占，该发端设备重新选取的预留资源位于该第二时间单元之后。
可选地，在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解，根据本申请实施例的收端设备600可对应于本申请方法实施例中的收端设备，并且收端设备400中的各个单元的上述和其它操作和/或功能分别为了实现图12所示方法200中收端设备的相应流程，为了简洁，在此不再赘述。
图23示出了根据本申请实施例的发端设备700的示意性框图。如图23所示，该发端设备700包括：通信单元710，用于在第一时间单元上发送第一阶侧行控制信息SCI和第二阶SCI，
其中，该第一阶SCI承载在物理侧行控制信道PSCCH中，该第二阶SCI占用物理侧行共享信道PSSCH资源，该第二阶SCI从该第一时间单元的第二个侧行符号开始映射，其中，该PSSCH是由该PSCCH调度的。
可选地，该第一阶SCI包括第一地址信息，该第一地址信息用于确定该第一阶SCI调度的数据的目标设备。
可选地，该第一地址信息包括高层生成的目标地址信息中的部分或者全部。
可选地，在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解，根据本申请实施例的发端设备700可对应于本申请方法实施例中的发端设备，并且发端设备700中的各个单元的上述和其它操作和/或功能分别为了实现图17所示方法300中发端设备的相应流程，为了简洁，在此不再赘述。
图24示出了根据本申请实施例的收端设备800的示意性框图。如图24所示，该收端设备800包括：通信单元810，用于在第一时间单元上接收第一阶侧行控制信息SCI和第二阶SCI，
其中，该第一阶SCI承载在物理侧行控制信道PSCCH中，该第二阶SCI占用物理侧行共享信道PSSCH资源，该第二阶SCI从该第一时间单元的第二个侧行符号开始映射，其中，该PSSCH是由该PSCCH调度的。
可选地，该第一阶SCI包括第一地址信息，该第一地址信息用于确定该第一阶SCI调度的数据的目标设备；
该收端设备800还包括：
处理单元820，用于根据该第一地址信息，确定是否接收该第一阶SCI调度的数据。
可选地，该第一地址信息包括高层生成的目标地址信息中的部分或者全部。
可选地，在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解，根据本申请实施例的收端设备800可对应于本申请方法实施例中的收端设备，并且收端设备800中的各个单元的上述和其它操作和/或功能分别为了实现图17所示方法300中收端设备的相应流程，为了简洁，在此不再赘述。
图25示出了根据本申请实施例的发端设备900的示意性框图。如图25所示，该发端设备900包括：通信单元910，用于在第一时间单元上发送第一阶侧行控制信息SCI和第二阶SCI，
其中，该第一阶SCI承载在物理侧行控制信道PSCCH中，该第二阶SCI占用物理侧行共享信道PSSCH资源，该第一阶SCI包括指示信息，该指示信息用于指示该第二阶SCI传输资源的第一个时域符号的位置，其中，该PSSCH是由该PSCCH调度的。
可选地，该第一个时域符号的位置为该第一时间单元的第二个侧行符号，或者，该第一个时域符号的位置为该第一时间单元的第一个PSSCH解调参考信号DMRS符号。
可选地，该第一阶SCI包括第一地址信息，该第一地址信息用于指示该第一阶SCI调度的数据的目标设备。
可选地，该第一地址信息包括高层生成的目标地址信息中的部分或者全部。
可选地，在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解，根据本申请实施例的发端设备900可对应于本申请方法实施例中的发端设备，并且发端设备900中的各个单元的上述和其它操作和/或功能分别为了实现图20所示方法400中发端设备的相应流程，为了简洁，在此不再赘述。
图26示出了根据本申请实施例的收端设备1000的示意性框图。如图26所示，该收端设备1000包括：
通信单元1010，用于在第一时间单元上接收第一阶侧行控制信息SCI，其中，该第一阶SCI承载在物理侧行控制信道PSCCH中该第一阶SCI包括指示信息，该指示信息用于指示第二阶SCI在该第一时间单元上的传输资源的第一个时域符号的位置，该第二阶SCI占用物理侧行共享信道PSSCH资源，其中，该PSSCH是由该PSCCH调度的；
该通信单元1010，还用于根据该指示信息在该第一时间单元上接收该第二阶SCI。
可选地，该第一个时域符号的位置为该第一时间单元的第二个侧行符号，或者，该第一个时域符号的位置为该第一时间单元的第一个PSSCH解调参考信号DMRS符号。
可选地，该第一阶SCI包括第一地址信息，该第一地址信息用于指示该第一阶SCI调度的数据的目标设备；
该收端设备1000还包括：
处理单元1020，用于根据该第一地址信息，确定是否接收该第一阶SCI调度的数据。
可选地，该第一地址信息包括高层生成的目标地址信息中的部分或者全部。
可选地，在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解，根据本申请实施例的收端设备1000可对应于本申请方法实施例中的收端设备，并且收端设备1000中的各个单元的上述和其它操作和/或功能分别为了实现图20所示方法400中收端设备的相应流程，为了简洁，在此不再赘述。
图27是本申请实施例提供的一种通信设备1100示意性结构图。图27所示的通信设备1100包括处理器1110，处理器1110可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图27所示，通信设备1100还可以包括存储器1120。其中，处理器1110可以从存储器1120中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1120可以是独立于处理器1110的一个单独的器件，也可以集成在处理器1110中。
可选地，如图27所示，通信设备1100还可以包括收发器1130，处理器1110可以控制该收发器1130与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器1130可以包括发射机和接收机。收发器1130还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备1100具体可为本申请实施例的发端设备，并且该通信设备1100可以实现本申请实施例的各个方法中由发端设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备1100具体可为本申请实施例的收端设备，并且该通信设备1100可以实现本申请实施例的各个方法中由收端设备实现的相应流程，为了简洁，在此不再赘述。
图28是本申请实施例的装置的示意性结构图。图28所示的装置1200包括处理器1210，处理器1210可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图28所示，装置1200还可以包括存储器1220。其中，处理器1210可以从存储器1220中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1220可以是独立于处理器1210的一个单独的器件，也可以集成在处理器1210中。
可选地，该装置1200还可以包括输入接口1230。其中，处理器1210可以控制该输入接口1230与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该装置1200还可以包括输出接口1240。其中，处理器1210可以控制该输出接口1240与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该装置可应用于本申请实施例中的发端设备，并且该装置可以实现本申请实施例的各个方法中由发端设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该装置可应用于本申请实施例中的收端设备，并且该装置可以实现本申请实施例的各个方法中由收端设备实现的相应流程，为了简洁，在此不再赘述。
可选地，本申请实施例提到的装置也可以是芯片。例如可以是系统级芯片，系统芯片，芯片系统或片上系统芯片等。
图29是本申请实施例提供的一种通信系统1300的示意性框图。如图29所示，该通信系统1300 包括发端设备1310和收端设备1320。
其中，该发端设备1310可以用于实现上述方法中由发端设备实现的相应的功能，以及该收端设备1320可以用于实现上述方法中由收端设备实现的相应的功能为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的发端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由发端设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机可读存储介质可应用于本申请实施例中的收端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由收端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的发端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由发端设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序产品可应用于本申请实施例中的收端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由收端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的发端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由发端设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序可应用于本申请实施例中的收端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由收端设备实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。针对这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (128)

  1. 一种节能的方法，其特征在于，包括：
    发端设备在第一时间单元上发送第一物理侧行控制信道PSCCH，以及在第二时间单元上发送第一物理侧行共享信道PSSCH，其中，所述第一PSSCH是由所述第一PSCCH调度的。
  2. 如权利要求1所述的方法，其特征在于，
    所述第一PSCCH中承载有第一阶侧行控制信息SCI，且所述第一阶SCI包括第一地址信息，所述第一地址信息用于确定所述第一阶SCI调度的数据的目标设备。
  3. 如权利要求2所述的方法，其特征在于，所述方法还包括：
    所述发端设备在所述第二时间单元上发送第二阶SCI，所述第二阶SCI占用所述第一PSSCH的资源。
  4. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    所述发端设备在所述第一时间单元上发送第二阶SCI，且所述第二阶SCI包括第一地址信息，所述第一地址信息用于确定第一阶SCI调度的数据的目标设备，所述第一阶SCI承载在所述第一PSCCH中。
  5. 如权利要求4所述的方法，其特征在于，所述第二阶SCI占用一个子信道，且所述子信道中不包括所述第一PSSCH的数据部分。
  6. 如权利要求3至5中任一项所述的方法，其特征在于，所述方法还包括：
    所述发端设备在所述第二时间单元上发送第二PSCCH，所述第二PSCCH用于调度第二PSSCH，所述第二PSCCH占用所述第一PSSCH的资源。
  7. 如权利要求6所述的方法，其特征在于，所述第一PSSCH和所述第二PSSCH传输相同的数据块。
  8. 如权利要求6或7所述的方法，其特征在于，所述第一阶SCI中包括第一指示信息，或者，所述第二阶SCI中包括第一指示信息，其中，所述第一指示信息用于确定所述发端设备在所述第二时间单元上是否发送所述第二PSCCH。
  9. 如权利要求2至8中任一项所述的方法，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  10. 如权利要求2至9中任一项所述的方法，其特征在于，所述第一阶SCI中包括优先等级，所述优先等级为第一值，所述第一值表示最高优先等级。
  11. 如权利要求2至10中任一项所述的方法，其特征在于，所述第一阶SCI中包括第二指示信息，所述第二指示信息用于指示所述第一时间单元与所述第二时间单元之间的时隙间隔。
  12. 如权利要求2至10中任一项所述的方法，其特征在于，所述第一阶SCI中包括第一索引，所述第一索引在第一对应关系中对应第一时间单元间隔，所述第一时间单元间隔为所述第一时间单元与所述第二时间单元之间的时隙间隔。
  13. 如权利要求12所述的方法，其特征在于，所述第一对应关系为预配置或者协议约定的，或者，所述第一对应关系为网络设备配置的，或者，所述第一对应关系为资源池配置参数，或者，所述第一对应关系是所述发端设备和收端设备通过PC5-无线资源控制RRC信令交互的。
  14. 如权利要求1至13中任一项所述的方法，其特征在于，
    所述第一时间单元上发送的PSCCH调度的是PSSCH的首次传输。
  15. 如权利要求1至14中任一项所述的方法，其特征在于，
    第n次传输的PSSCH与第n+1次传输的PSCCH位于同一时隙中，n为整数，且n≥1。
  16. 如权利要求1至15中任一项所述的方法，其特征在于，
    所述发端设备预留的传输资源位于所述第二时间单元，或者，所述发端设备预留的传输资源位于所述第二时间单元之后。
  17. 如权利要求1至16中任一项所述的方法，其特征在于，所述方法还包括：
    当所述发端设备预留的资源被抢占，所述发端设备在所述第二时间单元之后重新选取预留资源。
  18. 一种节能的方法，其特征在于，包括：
    收端设备在第一时间单元上接收第一物理侧行控制信道PSCCH，以及在第二时间单元上接收第一物理侧行共享信道PSSCH，其中，所述第一PSSCH是由所述第一PSCCH调度的。
  19. 如权利要求18所述的方法，其特征在于，
    所述第一PSCCH中承载有第一阶侧行控制信息SCI，且所述第一阶SCI包括第一地址信息，所述第一地址信息用于确定所述第一阶SCI调度的数据的目标设备；
    所述方法还包括：
    所述收端设备根据所述第一地址信息，确定是否接收所述第一阶SCI调度的数据。
  20. 如权利要求19所述的方法，其特征在于，所述方法还包括：
    所述收端设备在所述第二时间单元上接收第二阶SCI，所述第二阶SCI占用所述第一PSSCH的资源。
  21. 如权利要求18所述的方法，其特征在于，所述方法还包括：
    所述收端设备在所述第一时间单元上接收第二阶SCI，且所述第二阶SCI包括第一地址信息，所述第一地址信息用于确定第一阶SCI调度的数据的目标设备，所述第一阶SCI承载在所述第一PSCCH中；
    所述收端设备根据所述第一地址信息，确定是否接收所述第一阶SCI调度的数据。
  22. 如权利要求21所述的方法，其特征在于，所述第二阶SCI占用一个子信道，且所述子信道中不包括所述第一PSSCH的数据部分。
  23. 如权利要求20至22中任一项所述的方法，其特征在于，所述方法还包括：
    所述收端设备在所述第二时间单元上接收第二PSCCH，所述第二PSCCH用于调度第二PSSCH，所述第二PSCCH占用所述第一PSSCH的资源。
  24. 如权利要求23所述的方法，其特征在于，所述第一PSSCH和所述第二PSSCH传输相同的数据块。
  25. 如权利要求23或24所述的方法，其特征在于，所述第一阶SCI中包括第一指示信息，或者，所述第二阶SCI中包括第一指示信息，其中，所述第一指示信息用于确定发端设备在所述第二时间单元上是否发送所述第二PSCCH；
    所述方法还包括：
    所述收端设备根据所述第一指示信息，确定是否在所述第二时间单元上接收所述第二PSCCH。
  26. 如权利要求19至25中任一项所述的方法，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  27. 如权利要求19至26中任一项所述的方法，其特征在于，所述第一阶SCI中包括优先等级，所述优先等级为第一值，所述第一值用于表示最高优先等级；
    所述方法还包括：
    所述收端设备根据所述第一值，确定仅在所述发端设备预留的传输资源上检测所述发端设备发送的数据。
  28. 如权利要求19至27中任一项所述的方法，其特征在于，所述方法还包括：
    所述收端设备获取资源池配置信息，所述资源池配置信息中包括第三指示信息，所述第三指示信息用于确定不支持预抢占功能；
    所述方法还包括：
    所述收端设备根据所述第三指示信息，确定仅在所述发端设备预留的传输资源上检测所述发端设备发送的数据。
  29. 如权利要求19至28中任一项所述的方法，其特征在于，所述第一阶SCI中包括第二指示信息，所述第二指示信息用于指示所述第一时间单元与所述第二时间单元之间的时隙间隔。
  30. 如权利要求19至28中任一项所述的方法，其特征在于，所述第一阶SCI中包括第一索引，所述第一索引在第一对应关系中对应第一时间单元间隔，所述第一时间单元间隔为所述第一时间单元与所述第二时间单元之间的时隙间隔。
  31. 如权利要求30所述的方法，其特征在于，所述第一对应关系为预配置或者协议约定的，或者，所述第一对应关系为网络设备配置的，或者，所述第一对应关系为资源池配置参数，或者，所述第一对应关系是所述发端设备和收端设备通过PC5-无线资源控制RRC信令交互的。
  32. 如权利要求18至31中任一项所述的方法，其特征在于，
    所述第一时间单元上发送的PSCCH调度的是PSSCH的首次传输。
  33. 如权利要求18至32中任一项所述的方法，其特征在于，
    第n次传输的PSSCH与第n+1次传输的PSCCH位于同一时隙中，n为整数，且n≥1。
  34. 如权利要求18至33中任一项所述的方法，其特征在于，
    发端设备预留的传输资源位于所述第二时间单元，或者，发端设备预留的传输资源位于所述第二时间单元之后。
  35. 如权利要求18至34中任一项所述的方法，其特征在于，当发端设备预留的资源被抢占，所述发端设备重新选取的预留资源位于所述第二时间单元之后。
  36. 一种节能的方法，其特征在于，包括：
    发端设备在第一时间单元上发送第一阶侧行控制信息SCI和第二阶SCI，
    其中，所述第一阶SCI承载在物理侧行控制信道PSCCH中，所述第二阶SCI占用物理侧行共享信道PSSCH资源，所述第二阶SCI从所述第一时间单元的第二个侧行符号开始映射，所述PSSCH是由所述PSCCH调度的。
  37. 如权利要求36所述的方法，其特征在于，所述第一阶SCI包括第一地址信息，所述第一地址信息用于确定所述第一阶SCI调度的数据的目标设备。
  38. 如权利要求37所述的方法，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  39. 一种节能的方法，其特征在于，包括：
    收端设备在第一时间单元上接收第一阶侧行控制信息SCI和第二阶SCI，
    其中，所述第一阶SCI承载在物理侧行控制信道PSCCH中，所述第二阶SCI占用物理侧行共享信道PSSCH资源，所述第二阶SCI从所述第一时间单元的第二个侧行符号开始映射，所述PSSCH是由所述PSCCH调度的。
  40. 如权利要求39所述的方法，其特征在于，所述第一阶SCI包括第一地址信息，所述第一地址信息用于确定所述第一阶SCI调度的数据的目标设备；
    所述方法还包括：
    所述收端设备根据所述第一地址信息，确定是否接收所述第一阶SCI调度的数据。
  41. 如权利要求40所述的方法，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  42. 一种节能的方法，其特征在于，包括：
    发端设备在第一时间单元上发送第一阶侧行控制信息SCI和第二阶SCI，
    其中，所述第一阶SCI承载在物理侧行控制信道PSCCH中，所述第二阶SCI占用物理侧行共享信道PSSCH资源，所述第一阶SCI包括指示信息，所述指示信息用于指示所述第二阶SCI传输资源的第一个时域符号的位置，所述PSSCH是由所述PSCCH调度的。
  43. 如权利要求42所述的方法，其特征在于，所述第一个时域符号的位置为所述第一时间单元的第二个侧行符号，或者，所述第一个时域符号的位置为所述第一时间单元的第一个PSSCH解调参考信号DMRS符号。
  44. 如权利要求42或43所述的方法，其特征在于，所述第一阶SCI包括第一地址信息，所述第一地址信息用于指示所述第一阶SCI调度的数据的目标设备。
  45. 如权利要求44所述的方法，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  46. 一种节能的方法，其特征在于，包括：
    收端设备在第一时间单元上接收第一阶侧行控制信息SCI，其中，所述第一阶SCI承载在物理侧行控制信道PSCCH中所述第一阶SCI包括指示信息，所述指示信息用于指示第二阶SCI在所述第一时间单元上的传输资源的第一个时域符号的位置，所述第二阶SCI占用物理侧行共享信道PSSCH资源，所述PSSCH是由所述PSCCH调度的；
    所述收端设备根据所述指示信息在所述第一时间单元上接收所述第二阶SCI。
  47. 如权利要求46所述的方法，其特征在于，所述第一个时域符号的位置为所述第一时间单元的第二个侧行符号，或者，所述第一个时域符号的位置为所述第一时间单元的第一个PSSCH解调参考信号DMRS符号。
  48. 如权利要求46或47所述的方法，其特征在于，所述第一阶SCI包括第一地址信息，所述第一地址信息用于指示所述第一阶SCI调度的数据的目标设备；
    所述方法还包括：
    所述收端设备根据所述第一地址信息，确定是否接收所述第一阶SCI调度的数据。
  49. 如权利要求48所述的方法，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  50. 一种发端设备，其特征在于，包括：
    通信单元，用于在第一时间单元上发送第一物理侧行控制信道PSCCH，以及在第二时间单元上发送第一物理侧行共享信道PSSCH，其中，所述第一PSSCH是由所述第一PSCCH调度的。
  51. 如权利要求50所述的发端设备，其特征在于，
    所述第一PSCCH中承载有第一阶侧行控制信息SCI，且所述第一阶SCI包括第一地址信息，所述第一地址信息用于确定所述第一阶SCI调度的数据的目标设备。
  52. 如权利要求51所述的发端设备，其特征在于，所述通信单元还用于在所述第二时间单元上发送第二阶SCI，所述第二阶SCI占用所述第一PSSCH的资源。
  53. 如权利要求50所述的发端设备，其特征在于，所述通信单元还用于在所述第一时间单元上发送第二阶SCI，且所述第二阶SCI包括第一地址信息，所述第一地址信息用于确定第一阶SCI调度的数据的目标设备，所述第一阶SCI承载在所述第一PSCCH中。
  54. 如权利要求53所述的发端设备，其特征在于，所述第二阶SCI占用一个子信道，且所述子信道中不包括所述第一PSSCH的数据部分。
  55. 如权利要求52至54中任一项所述的发端设备，其特征在于，所述通信单元还用于在所述第二时间单元上发送第二PSCCH，所述第二PSCCH用于调度第二PSSCH，所述第二PSCCH占用所述第一PSSCH的资源。
  56. 如权利要求55所述的发端设备，其特征在于，所述第一PSSCH和所述第二PSSCH传输相同的数据块。
  57. 如权利要求55或56所述的发端设备，其特征在于，所述第一阶SCI中包括第一指示信息，或者，所述第二阶SCI中包括第一指示信息，其中，所述第一指示信息用于确定所述发端设备在所述第二时间单元上是否发送所述第二PSCCH。
  58. 如权利要求51至57中任一项所述的发端设备，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  59. 如权利要求51至58中任一项所述的发端设备，其特征在于，所述第一阶SCI中包括优先等级，所述优先等级为第一值，所述第一值表示最高优先等级。
  60. 如权利要求51至59中任一项所述的发端设备，其特征在于，所述第一阶SCI中包括第二指示信息，所述第二指示信息用于指示所述第一时间单元与所述第二时间单元之间的时隙间隔。
  61. 如权利要求51至59中任一项所述的发端设备，其特征在于，所述第一阶SCI中包括第一索引，所述第一索引在第一对应关系中对应第一时间单元间隔，所述第一时间单元间隔为所述第一时间单元与所述第二时间单元之间的时隙间隔。
  62. 如权利要求61所述的发端设备，其特征在于，所述第一对应关系为预配置或者协议约定的，或者，所述第一对应关系为网络设备配置的，或者，所述第一对应关系为资源池配置参数，或者，所述第一对应关系是所述发端设备和收端设备通过PC5-无线资源控制RRC信令交互的。
  63. 如权利要求50至62中任一项所述的发端设备，其特征在于，
    所述第一时间单元上发送的PSCCH调度的是PSSCH的首次传输。
  64. 如权利要求50至63中任一项所述的发端设备，其特征在于，
    第n次传输的PSSCH与第n+1次传输的PSCCH位于同一时隙中，n为整数，且n≥1。
  65. 如权利要求50至64中任一项所述的发端设备，其特征在于，
    所述发端设备预留的传输资源位于所述第二时间单元，或者，所述发端设备预留的传输资源位于所述第二时间单元之后。
  66. 如权利要求50至65中任一项所述的发端设备，其特征在于，所述发端设备还包括：处理单元，其中，当所述发端设备预留的资源被抢占，所述处理单元用于在所述第二时间单元之后重新选取预留资源。
  67. 一种收端设备，其特征在于，包括：
    通信单元，用于在第一时间单元上接收第一物理侧行控制信道PSCCH，以及在第二时间单元上接收第一物理侧行共享信道PSSCH，其中，所述第一PSSCH是由所述第一PSCCH调度的。
  68. 如权利要求67所述的收端设备，其特征在于，
    所述第一PSCCH中承载有第一阶侧行控制信息SCI，且所述第一阶SCI包括第一地址信息，所述第一地址信息用于确定所述第一阶SCI调度的数据的目标设备；
    所述收端设备还包括：
    处理单元，用于根据所述第一地址信息，确定是否接收所述第一阶SCI调度的数据。
  69. 如权利要求68所述的收端设备，其特征在于，所述通信单元还用于在所述第二时间单元上接收第二阶SCI，所述第二阶SCI占用所述第一PSSCH的资源。
  70. 如权利要求67所述的收端设备，其特征在于，所述收端设备还包括：处理单元，
    所述通信单元还用于在所述第一时间单元上接收第二阶SCI，且所述第二阶SCI包括第一地址信息，所述第一地址信息用于确定第一阶SCI调度的数据的目标设备，所述第一阶SCI承载在所述第一PSCCH中；
    所述处理单元用于根据所述第一地址信息，确定是否接收所述第一阶SCI调度的数据。
  71. 如权利要求70所述的收端设备，其特征在于，所述第二阶SCI占用一个子信道，且所述子信道中不包括所述第一PSSCH的数据部分。
  72. 如权利要求69至71中任一项所述的收端设备，其特征在于，所述通信单元还用于在所述第二时间单元上接收第二PSCCH，所述第二PSCCH用于调度第二PSSCH，所述第二PSCCH占用所述第一PSSCH的资源。
  73. 如权利要求72所述的收端设备，其特征在于，所述第一PSSCH和所述第二PSSCH传输相同的数据块。
  74. 如权利要求72或73所述的收端设备，其特征在于，所述第一阶SCI中包括第一指示信息，或者，所述第二阶SCI中包括第一指示信息，其中，所述第一指示信息用于确定发端设备在所述第二时间单元上是否发送所述第二PSCCH；
    所述收端设备还包括：
    处理单元，用于根据所述第一指示信息，确定是否在所述第二时间单元上接收所述第二PSCCH。
  75. 如权利要求68至74中任一项所述的收端设备，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  76. 如权利要求68至75中任一项所述的收端设备，其特征在于，所述第一阶SCI中包括优先等级，所述优先等级为第一值，所述第一值用于表示最高优先等级；
    所述收端设备还包括：
    处理单元，用于根据所述第一值，确定仅在所述发端设备预留的传输资源上检测所述发端设备发送的数据。
  77. 如权利要求68至76中任一项所述的收端设备，其特征在于，所述收端设备还包括：处理单元，其中，
    所述通信单元还用于获取资源池配置信息，所述资源池配置信息中包括第三指示信息，所述第三指示信息用于确定不支持预抢占功能；
    所述处理单元用于根据所述第三指示信息，确定仅在所述发端设备预留的传输资源上检测所述发端设备发送的数据。
  78. 如权利要求68至77中任一项所述的收端设备，其特征在于，所述第一阶SCI中包括第二指示信息，所述第二指示信息用于指示所述第一时间单元与所述第二时间单元之间的时隙间隔。
  79. 如权利要求68至77中任一项所述的收端设备，其特征在于，所述第一阶SCI中包括第一索引，所述第一索引在第一对应关系中对应第一时间单元间隔，所述第一时间单元间隔为所述第一时间单元与所述第二时间单元之间的时隙间隔。
  80. 如权利要求79所述的收端设备，其特征在于，所述第一对应关系为预配置或者协议约定的，或者，所述第一对应关系为网络设备配置的，或者，所述第一对应关系为资源池配置参数，或者，所述第一对应关系是所述发端设备和收端设备通过PC5-无线资源控制RRC信令交互的。
  81. 如权利要求67至80中任一项所述的收端设备，其特征在于，
    所述第一时间单元上发送的PSCCH调度的是PSSCH的首次传输。
  82. 如权利要求67至81中任一项所述的收端设备，其特征在于，
    第n次传输的PSSCH与第n+1次传输的PSCCH位于同一时隙中，n为整数，且n≥1。
  83. 如权利要求67至82中任一项所述的收端设备，其特征在于，
    发端设备预留的传输资源位于所述第二时间单元，或者，发端设备预留的传输资源位于所述第二时间单元之后。
  84. 如权利要求67至83中任一项所述的收端设备，其特征在于，当发端设备预留的资源被抢占，所述发端设备重新选取的预留资源位于所述第二时间单元之后。
  85. 一种发端设备，其特征在于，包括：
    通信单元，用于在第一时间单元上发送第一阶侧行控制信息SCI和第二阶SCI，
    其中，所述第一阶SCI承载在物理侧行控制信道PSCCH中，所述第二阶SCI占用物理侧行共享信道PSSCH资源，所述第二阶SCI从所述第一时间单元的第二个侧行符号开始映射，其中，所述PSSCH是由所述PSCCH调度的。
  86. 如权利要求85所述的发端设备，其特征在于，所述第一阶SCI包括第一地址信息，所述第一地址信息用于确定所述第一阶SCI调度的数据的目标设备。
  87. 如权利要求86所述的发端设备，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  88. 一种收端设备，其特征在于，包括：
    通信单元，用于在第一时间单元上接收第一阶侧行控制信息SCI和第二阶SCI，
    其中，所述第一阶SCI承载在物理侧行控制信道PSCCH中，所述第二阶SCI占用物理侧行共享信道PSSCH资源，所述第二阶SCI从所述第一时间单元的第二个侧行符号开始映射，其中，所述PSSCH是由所述PSCCH调度的。
  89. 如权利要求88所述的收端设备，其特征在于，所述第一阶SCI包括第一地址信息，所述第一地址信息用于确定所述第一阶SCI调度的数据的目标设备；
    所述收端设备还包括：
    处理单元，用于根据所述第一地址信息，确定是否接收所述第一阶SCI调度的数据。
  90. 如权利要求89所述的收端设备，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  91. 一种发端设备，其特征在于，包括：
    通信单元，用于在第一时间单元上发送第一阶侧行控制信息SCI和第二阶SCI，
    其中，所述第一阶SCI承载在物理侧行控制信道PSCCH中，所述第二阶SCI占用物理侧行共享信道PSSCH资源，所述第一阶SCI包括指示信息，所述指示信息用于指示所述第二阶SCI传输资源的第一个时域符号的位置，其中，所述PSSCH是由所述PSCCH调度的。
  92. 如权利要求91所述的发端设备，其特征在于，所述第一个时域符号的位置为所述第一时间单元的第二个侧行符号，或者，所述第一个时域符号的位置为所述第一时间单元的第一个PSSCH解调参考信号DMRS符号。
  93. 如权利要求91或92所述的发端设备，其特征在于，所述第一阶SCI包括第一地址信息，所述第一地址信息用于指示所述第一阶SCI调度的数据的目标设备。
  94. 如权利要求93所述的发端设备，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  95. 一种收端设备，其特征在于，包括：
    通信单元，用于在第一时间单元上接收第一阶侧行控制信息SCI，其中，所述第一阶SCI承载在物理侧行控制信道PSCCH中所述第一阶SCI包括指示信息，所述指示信息用于指示第二阶SCI在所述第一时间单元上的传输资源的第一个时域符号的位置，所述第二阶SCI占用物理侧行共享信道PSSCH资源，其中，所述PSSCH是由所述PSCCH调度的；
    所述通信单元，还用于根据所述指示信息在所述第一时间单元上接收所述第二阶SCI。
  96. 如权利要求95所述的收端设备，其特征在于，所述第一个时域符号的位置为所述第一时间单元的第二个侧行符号，或者，所述第一个时域符号的位置为所述第一时间单元的第一个PSSCH解调参考信号DMRS符号。
  97. 如权利要求95或96所述的收端设备，其特征在于，所述第一阶SCI包括第一地址信息，所述第一地址信息用于指示所述第一阶SCI调度的数据的目标设备；
    所述收端设备还包括：
    处理单元，用于根据所述第一地址信息，确定是否接收所述第一阶SCI调度的数据。
  98. 如权利要求97所述的收端设备，其特征在于，所述第一地址信息包括高层生成的目标地址信息中的部分或者全部。
  99. 一种发端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至17中任一项所述的方法。
  100. 一种收端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求18至35中任一项所述的方法。
  101. 一种发端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求36至38中任一项所述的方法。
  102. 一种收端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求39至41中任一项所述的方法。
  103. 一种发端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求42至45中任一项所述的方法。
  104. 一种收端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求46至49中任一项所述的方法。
  105. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至17中任一项所述的方法。
  106. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求18至35中任一项所述的方法。
  107. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求36至38中任一项所述的方法。
  108. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求39至41中任一项所述的方法。
  109. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求42至45中任一项所述的方法。
  110. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求46至49中任一项所述的方法。
  111. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至17中任一项所述的方法。
  112. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求18至35中任一项所述的方法。
  113. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求36至38中任一项所述的方法。
  114. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求39至41中任一项所述的方法。
  115. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求42至45中任一项所述的方法。
  116. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求46至49中任一项所述的方法。
  117. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至17中任一项所述的方法。
  118. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求18至35中任一项所述的方法。
  119. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求36至38中任一项所述的方法。
  120. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求39至41中任一项所述的方法。
  121. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求42至45中任一项所述的方法。
  122. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求46至49中任一项所述的方法。
  123. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1至17中任一项所述的方法。
  124. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求18至35中任一项所述的方法。
  125. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求36至38中任一项所述的方法。
  126. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求39至41中任一项所述的方法。
  127. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求42至45中任一项所述的方法。
  128. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求46至49中任一项所述的方法。
PCT/CN2020/107462 2020-08-06 2020-08-06 节能的方法及设备 WO2022027463A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2020/107462 WO2022027463A1 (zh) 2020-08-06 2020-08-06 节能的方法及设备
CN202080101198.6A CN115669093A (zh) 2020-08-06 2020-08-06 节能的方法及设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/107462 WO2022027463A1 (zh) 2020-08-06 2020-08-06 节能的方法及设备

Publications (1)

Publication Number Publication Date
WO2022027463A1 true WO2022027463A1 (zh) 2022-02-10

Family

ID=80118848

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/107462 WO2022027463A1 (zh) 2020-08-06 2020-08-06 节能的方法及设备

Country Status (2)

Country Link
CN (1) CN115669093A (zh)
WO (1) WO2022027463A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111247856A (zh) * 2018-09-28 2020-06-05 联发科技股份有限公司 新无线电(nr)中侧边链路控制信息(sci)的两阶式设计
CN111328041A (zh) * 2018-12-13 2020-06-23 普天信息技术有限公司 车联网v2x的资源复用模式指示方法及装置
WO2020153821A1 (ko) * 2019-01-23 2020-07-30 엘지전자 주식회사 Nr v2x의 2단계 sci 전송

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111247856A (zh) * 2018-09-28 2020-06-05 联发科技股份有限公司 新无线电(nr)中侧边链路控制信息(sci)的两阶式设计
CN111328041A (zh) * 2018-12-13 2020-06-23 普天信息技术有限公司 车联网v2x的资源复用模式指示方法及装置
WO2020153821A1 (ko) * 2019-01-23 2020-07-30 엘지전자 주식회사 Nr v2x의 2단계 sci 전송

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
FRAUNHOFER HHI ET AL.: "Design of NR V2X Physical Layer Structures", 3GPP TSG RAN WG1 #99 R1-1912287, 22 November 2019 (2019-11-22), XP051819981 *
NOKIA ET AL.: "Discussion of physical layer structure for sidelink", 3GPP TSG RAN WG1 #98BIS R1-1910512, 20 October 2019 (2019-10-20), XP051789317 *

Also Published As

Publication number Publication date
CN115669093A (zh) 2023-01-31

Similar Documents

Publication Publication Date Title
WO2022040939A1 (zh) 无线通信的方法和终端设备
US20230345426A1 (en) Resource determination method, first terminal device, and second terminal device
US11895676B2 (en) Resource set transmission method and terminal device
US20230232375A1 (en) Method for determining resource set and terminal device
WO2023082356A1 (zh) 无线通信的方法和终端设备
WO2022134076A1 (zh) 无线通信的方法和终端设备
WO2022222106A1 (zh) 传输物理侧行反馈信道psfch的方法和终端设备
WO2022021008A1 (zh) 确定侧行链路配置授权资源的方法和终端设备
WO2022147797A1 (zh) 信道接入方法及设备
WO2022027463A1 (zh) 节能的方法及设备
WO2023133685A1 (zh) 无线通信的方法及终端设备
WO2023050338A1 (zh) 无线通信的方法和终端设备
WO2023044735A1 (zh) 无线通信的方法和终端设备
WO2022061790A1 (zh) 资源集合的传输方法和终端
WO2024055231A1 (zh) 无线通信的方法及设备
WO2023279258A1 (zh) 资源选取的方法和终端设备
WO2022236696A1 (zh) 无线通信的方法和终端设备
WO2022151141A1 (zh) 基于非连续接收的侦听方法和终端
WO2022170478A1 (zh) 无线通信的方法、终端设备和网络设备
WO2024060117A1 (zh) 无线通信的方法和终端设备
WO2023283888A1 (zh) 无线通信的方法及设备
WO2022126636A1 (zh) 无线通信的方法和终端设备
WO2023108351A1 (zh) 无线通信的方法及终端设备
WO2023122905A1 (zh) 无线通信的方法及终端设备
WO2022165843A1 (zh) 侧行传输方法和终端

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20947869

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20947869

Country of ref document: EP

Kind code of ref document: A1