WO2021239064A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

Info

Publication number
WO2021239064A1
WO2021239064A1 PCT/CN2021/096499 CN2021096499W WO2021239064A1 WO 2021239064 A1 WO2021239064 A1 WO 2021239064A1 CN 2021096499 W CN2021096499 W CN 2021096499W WO 2021239064 A1 WO2021239064 A1 WO 2021239064A1
Authority
WO
WIPO (PCT)
Prior art keywords
resource
time
sensing
selection set
factor
Prior art date
Application number
PCT/CN2021/096499
Other languages
English (en)
Chinese (zh)
Inventor
刘哲
黎超
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2021239064A1 publication Critical patent/WO2021239064A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Definitions

  • This application relates to the field of communication technology, and in particular to a communication method and device.
  • V2X communication is a basic technology and key technology for high-speed mobile devices represented by vehicles in scenarios with high communication delay requirements; in the V2X communication process, terminal equipment can Communicate with other terminal devices through sidelink (SL) resources.
  • SL sidelink
  • the terminal device may adopt a partial-sensing mechanism to select side link resources.
  • the partial sensing mechanism means that the terminal device can sense fewer resources, and then select the resource for sending data according to the sensing result.
  • This application provides a communication method and device to reduce transmission interference and improve the accuracy of resource selection.
  • the embodiments of the present application provide a communication method, which can be applied to a terminal device or a chip of a terminal device.
  • the terminal device determines that the first sensing resource and the sleep time of discontinuous reception of DRX overlap in the time domain; determining the second sensing resource, the second sensing resource The number of time units that do not overlap with the sleep time in the sensing resource is greater than the number of time units that do not overlap with the sleep time in the first sensing resource; and, according to the sensing on the second sensing resource According to the test result, select the resource for sending data from the resource selection set.
  • the terminal device when the sleep time of the first sensing resource and DRX overlap in the time domain, the terminal device no longer selects the data transmission from the resource selection set according to the sensing result on the first sensing resource.
  • Resource but can determine the second sensing resource, and according to the sensing result on the second sensing resource, select the resource for sending data from the resource selection set, so as to facilitate the terminal device to exclude other terminal devices as much as possible
  • the reserved resources reduce transmission interference.
  • the first sensing resource satisfies: Where t y is any subframe in the resource selection set, k 1 is the first factor, and the first factor k 1 is one or more values in ⁇ 1,2,...,M ⁇ , and P 1 is The first step is long, the M is a positive integer; determining the second sensing resource includes: determining the second sensing resource according to a second factor k 2 and/or a second step length P 2 , the second factor k 2 is one or more values in ⁇ 1,2,...,N ⁇ , the N is a positive integer, wherein the second factor k 2 and the first factor k 1 are different, the second step The length P 2 is different from the first step length P 1 .
  • the second step length P 2 is smaller than the first step length P 1 .
  • the method further includes: determining that a first ratio is greater than or equal to a first threshold, and the first ratio is a value that overlaps the sleep time in the first sensing resource in the time domain. The ratio of the number of time units to the number of time units included in the first sensing resource; and/or determining that the channel busy rate CBR of the resource selection set is greater than or equal to a second threshold.
  • the terminal device determines whether the first ratio is greater than or equal to the first threshold and/or the CBR of the resource selection set is greater than or equal to the second threshold, and adopts a corresponding processing method according to the determination result, thereby making the implementation more reasonable.
  • the first ratio is greater than or equal to the first threshold, it means that the overlap of the sleep time of the first sensing resource and the DRX in the time domain has a greater impact on the accuracy of the sensing result.
  • the terminal device can be based on the second sensing
  • the sensing result of the resource, the resource used to send data is selected from the resource selection set, thereby effectively improving the accuracy of the sensing result and reducing transmission interference; and when the first ratio is less than the first threshold, the first sensing resource is indicated
  • the time domain overlap with the sleep time of DRX has little effect on the accuracy of the sensing result.
  • the terminal device can select from the resource selection set for sending data according to the sensing result of the first sensing resource
  • the second sensing resource does not need to be determined, so that the processing burden of the terminal device can be effectively saved.
  • the second factor k 2 and/or the second step length P 2 are determined from at least two factors k and/or at least two factors k and/or according to the first ratio and/or the CBR of the resource selection set.
  • the method further includes: determining that the first ratio belongs to a first ratio range, wherein the first ratio range is one of at least two ratio ranges, and the at least two ratios The range corresponds to the at least two factors k and/or the at least two step sizes P; and/or it is determined that the CBR of the resource selection set belongs to the first CBR value range, where the first CBR is The value range is one of at least two CBR value ranges, and the at least two CBR value ranges correspond to the at least two factors k and/or the at least two step sizes P.
  • the terminal device can select the corresponding second factor k 2 and/or the second factor k 2 and/or the second factor k 2 and/or the second factor k 2 and/or the second factor k and/or the at least two step size P according to the first ratio and/or the CBR of the resource selection set.
  • the step size P 2 so that the second sensing resource determined according to the second factor k 2 and/or the second step size P 2 is more reasonable.
  • the first factor k 1 and/or the second factor k 2 are predefined; or, configuration information is received, where the configuration information includes the first factor k 1 and/ Or the second factor k 2 .
  • the first step length P 1 and the second step length P 2 are predefined; or, the method further includes: receiving configuration information, where the configuration information is used to determine the The first step length P 1 and the second step length P 2 .
  • the at least two factors k and/or the at least two step sizes P are predefined; or, the method further includes: receiving configuration information, where the configuration information includes the At least two factors k and/or said at least two step sizes P.
  • the second sensing resource includes X consecutive time units, and the consecutive X time units are within the active time of the DRX; X is a positive integer.
  • the method further includes: receiving configuration information, where the configuration information is used to determine the value of X.
  • the embodiments of the present application provide a communication method, which can be applied to a terminal device or a chip of a terminal device. Taking this method as an example for a terminal device, in this method, the terminal device determines a first resource selection set, and responds to the first sensing resource corresponding to the first resource selection set and the sleep time of DRX in the time domain.
  • Overlap shift the first resource selection set backward in the time domain to obtain a second resource selection set; wherein, the end time point of the second resource selection set is before the first time point, and the first time point is Determined according to the transmission delay requirement of the data; select the resource for sending the data from the second resource selection set; wherein, the second sensing resource corresponding to the second resource selection set is not related to the The number of time units overlapping the sleep time is greater than the number of time units that do not overlap the sleep time in the first sensing resource.
  • the terminal device can no longer select resources from the first resource selection set, but can determine The second resource selection set is selected, and resources are selected from the second resource selection set, thereby facilitating the terminal device to exclude resources that have been reserved by other terminal devices in the second resource selection set as much as possible, thereby reducing transmission interference.
  • shifting the first resource selection set backward in the time domain to obtain the second resource selection set includes: shifting the first resource selection set backward by K time units in the time domain Obtain the second resource selection set, and K is less than or equal to the number of time units where the first sensing resource and the sleep time overlap in the time domain.
  • an embodiment of the present application provides a communication device, and the communication device may be a terminal device or a chip provided in the terminal device.
  • the communication device has the function of implementing the first aspect or the second aspect.
  • the communication device includes a module or unit or means corresponding to the steps involved in the first aspect or the second aspect.
  • the function Or the unit or means can be realized by software, or by hardware, and can also be realized by hardware executing corresponding software.
  • the communication device includes a processing unit and a transceiving unit, where the transceiving unit can be used to transceive signals to achieve communication between the communications device and other devices, for example, the transceiving unit is used to receive Configuration information of the network device; the processing unit can be used to perform some internal operations of the communication device.
  • the processing unit is used to determine that the sleep time of the first sensing resource and DRX overlap in the time domain; determine the second sensing resource, and the sleep time of the second sensing resource is not overlapped with the sleep time.
  • the number of overlapping time units is greater than the number of time units in the first sensing resource that do not overlap with the sleep time; and, according to the sensing result on the second sensing resource, select for use from the resource selection set The resource for sending data by the transceiver unit.
  • the first sensing resource satisfies: Where t y is any subframe in the resource selection set, k 1 is the first factor, and the first factor k 1 is one or more values in ⁇ 1,2,...,M ⁇ , and P 1 is The first step is long, and the M is a positive integer; the processing unit is specifically configured to: determine the second sensing resource according to a second factor k 2 and/or a second step size P 2 , and the second factor k 2 is One or more values in ⁇ 1,2,...,N ⁇ , the N is a positive integer, wherein the second factor k 2 and the first factor k 1 are different, and the second step size P 2 It is different from the first step length P 1 .
  • the second step length P 2 is smaller than the first step length P 1 .
  • the processing unit is further configured to: determine that a first ratio is greater than or equal to a first threshold, and the first ratio is the difference between the sleep time in the first sensing resource and the sleep time in the time domain. The ratio of the number of time units overlapped to the number of time units included in the first sensing resource; and/or determining that the channel busy rate CBR of the resource selection set is greater than or equal to a second threshold.
  • the second factor k 2 and/or the second step size P 2 are based on the first ratio and/or the CBR of the resource selection set from at least two factors k and/or at least Two steps P; wherein, the first ratio is the number of time units in the first sensing resource that overlaps the sleep time in the time domain and the number of time units included in the first sensing resource The ratio of the number of time units.
  • the processing unit is further configured to: determine that the first ratio belongs to a first ratio range, wherein the first ratio range is one of at least two ratio ranges, and the at least The two ratio ranges correspond to the at least two factors k and/or the at least two step sizes P; and/or, it is determined that the CBR of the resource selection set belongs to the first CBR value range, wherein the first CBR value range A CBR value range is one of at least two CBR value ranges, and the at least two CBR value ranges correspond to the at least two factors k and/or the at least two step sizes P.
  • the first factor k 1 and/or the second factor k 2 are predefined; or, the transceiver unit is further configured to receive configuration information, where the configuration information includes The first factor k 1 and/or the second factor k 2 .
  • the first step length P 1 and the second step length P 2 are predefined; or, the transceiver unit is further configured to receive configuration information, and the configuration information uses To determine the first step length P 1 and the second step length P 2 .
  • the at least two factors k and/or the at least two step lengths P are predefined; or, the transceiver unit is further configured to: receive configuration information, the configuration information The at least two factors k and/or the at least two step sizes P are included.
  • the second sensing resource includes X consecutive time units, and the consecutive X time units are within the active time of the DRX; X is a positive integer.
  • the transceiver unit is further configured to receive configuration information, where the configuration information is used to determine the value of X.
  • the processing unit is configured to: determine a first resource selection set, and respond to the time domain overlap between the first sensing resource corresponding to the first resource selection set and the sleep time of DRX , Shifting the first resource selection set backward in the time domain to obtain a second resource selection set; wherein the end time point of the second resource selection set is before the first time point, and the first time point is based on Data transmission delay is required to be determined; and, selecting a resource from the second resource selection set for the transceiver unit to send the data; wherein, the second sensing resource corresponding to the second resource selection set
  • the number of time units that do not overlap with the sleep time is greater than the number of time units that do not overlap with the sleep time in the first sensing resource.
  • the processing unit is specifically configured to: shift the first resource selection set backward by K time units in the time domain to obtain the second resource selection set, K It is less than or equal to the number of time units in which the first sensing resource and the sleep time overlap in the time domain.
  • the communication device includes a processor, and may also include a transceiver.
  • the transceiver is used to send and receive signals, and the processor executes program instructions to complete any of the first or second aspects.
  • the communication device may further include one or more memories, and the memories are used for coupling with the processor.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
  • the memory may store necessary computer programs or instructions for realizing the functions related to the first aspect or the second aspect described above.
  • the processor can execute the computer program or instruction stored in the memory, and when the computer program or instruction is executed, the communication device realizes any of the possible designs or implementations of the first aspect or the second aspect. method.
  • the communication device includes a processor, for example, applied to a terminal device to implement the functions or methods involved in the first aspect or the second aspect.
  • the communication device may be, for example, a chip. system.
  • the chip system further includes a memory for storing program instructions and data necessary to realize the functions of the method described in the first aspect or the second aspect.
  • the above-mentioned chip system may be a system on chip (SOC) or a baseband chip.
  • the baseband chip may include a processor, a channel encoder, a digital signal processor, a modem, and an interface module.
  • the present application provides a communication system, the communication system includes a first terminal device, and the first terminal device is configured to execute the method described in the first aspect or the second aspect.
  • the communication system may further include a network device, for example, the network device may be used to send configuration information to the first terminal device.
  • the communication system may further include a second terminal device.
  • the second terminal device may be used to send configuration information to the first terminal device.
  • this application provides a computer-readable storage medium in which computer-readable instructions are stored.
  • the computer reads and executes the computer-readable instructions, the computer executes the first aspect or Any possible design method of the second aspect.
  • this application provides a computer program product, which when a computer reads and executes the computer program product, causes the computer to execute any one of the possible design methods of the first aspect or the second aspect.
  • the present application provides a chip system, the chip system includes a processor, the processor is coupled with a memory, and is configured to read and execute a software program stored in the memory to implement the first aspect or Any possible design method of the second aspect.
  • the chip system may include a chip, or may also include a chip and other discrete devices.
  • FIG. 1 is an architecture diagram of a communication system to which an embodiment of this application is applicable;
  • FIG. 2 is a schematic diagram of several application scenarios of V2X provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of a possible implementation process for the terminal device to independently select resources according to an embodiment of this application;
  • 4A is a schematic diagram of a resource sensing window and a resource selection window provided by an embodiment of the application
  • FIG. 4B is an example of a resource selection set and sensing resources provided by an embodiment of this application.
  • FIG. 5 is a schematic diagram of a DRX cycle provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram showing the overlap of the sensing resource and the sleep time of DRX provided by an embodiment of the application;
  • FIG. 7 is an example of the first sensing resource and the second sensing resource provided by an embodiment of this application.
  • FIG. 8 is another example of the first sensing resource and the second sensing resource provided by the embodiment of this application.
  • FIG. 9 is another example of the first sensing resource and the second sensing resource provided by the embodiment of this application.
  • FIG. 10 is a schematic diagram of a flow corresponding to the communication method provided by an embodiment of this application.
  • FIG. 11 is a schematic diagram of another process corresponding to the communication method provided by an embodiment of this application.
  • FIG. 12 is an example of a first resource selection set and a second resource selection set provided by an embodiment of the application.
  • FIG. 13 is a possible exemplary block diagram of a device involved in an embodiment of this application.
  • FIG. 14 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • Fig. 1 is an architecture diagram of a communication system to which an embodiment of the application is applicable.
  • the communication system may include one or more network devices (such as network device 101), and one or more terminal devices (such as terminal device 1021, terminal device 1022).
  • network devices such as network device 101
  • terminal devices such as terminal device 1021, terminal device 1022
  • the embodiments of the present application do not limit the number of network devices and the number of terminal devices in the communication system, and in addition to the network devices and terminal devices, the above-mentioned communication system may also include other devices, such as core network devices and wireless devices.
  • the following equipment also called wireless backhaul equipment
  • multiple terminal devices may also form a communication system.
  • the network device 101 and the terminal device 1021 and the terminal device 1022 can communicate through air interface resources, and the terminal device 1021 and the terminal device 1022 can communicate through side link resources.
  • the terminal device 1021 can send data to the terminal device 1022.
  • the terminal device 1021 can be called the sending end terminal device
  • the terminal device 1022 can be called the receiving end terminal device; for another example, the terminal device 1022 can send data to the terminal device 1022.
  • 1021 sends data.
  • the terminal device 1022 may be referred to as a transmitting end terminal device
  • the terminal device 1021 may be referred to as a receiving end terminal device.
  • the aforementioned side link communication between the terminal device 1021 and the terminal device 1022 may be device-to-device (D2D) communication, or LTE-V (LTE-Vehicle) or V2X communication.
  • V2X communication refers to the communication between the vehicle and anything outside, including vehicle-to-vehicle (V2V) communication, vehicle-to-pedestrian (V2P) communication, vehicle to infrastructure (V2I) ) Communications, vehicle to network (V2N) communications, etc.
  • V2V communication can be as shown in Figure 2 (a)
  • V2P communication can be as shown in Figure 2 (b)
  • V2I communication or V2N communication can be as shown in Figure 2 (c).
  • the terminal equipment and network equipment involved in FIG. 1 are respectively described in detail below.
  • the terminal device includes a device that provides voice and/or data connectivity to the user, for example, it may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem.
  • the terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN.
  • the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote Station (remote station), access point (access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), or user Equipment (user device), etc.
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal devices, portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, smart wearable devices, and so on.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the terminal device of the embodiment of the present application may also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit that is built into a vehicle as one or more components or units.
  • a group, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit may implement the method of the embodiments of the present application.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which need to cooperate with other devices such as smart phones.
  • Use such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the device used to realize the function of the terminal device may be a terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system or a combination device or component that can realize the function of the terminal device. Can be installed in terminal equipment.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the device for implementing the functions of the terminal is a terminal device as an example to describe the technical solutions provided by the embodiments of the present application.
  • Network equipment for example, includes access network (access network, AN) equipment, such as a base station (e.g., access point), which may refer to equipment that communicates with wireless terminal equipment through one or more cells over an air interface in an access network, or, for example,
  • access network access network
  • AN access network
  • base station e.g., access point
  • IP Internet Protocol
  • the base station can be used to convert received air frames and Internet Protocol (IP) packets into each other, and act as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network.
  • IP Internet Protocol
  • the RSU can be a fixed infrastructure entity that supports vehicle-to-everything (V2X) applications, and can exchange messages with other entities that support V2X applications.
  • V2X vehicle-to-everything
  • the access network equipment can also coordinate the attribute management of the air interface.
  • the access network equipment may include the LTE system or the evolved base station (NodeB or eNB or e-NodeB, evolutional NodeB) in the long term evolution-advanced (LTE-A), or may also include the fifth The next generation node B (gNB) in the new radio (NR) system in the 5th generation (5G) mobile communication technology (the 5th generation, 5G), or the cloud radio access network (Cloud access network, Cloud).
  • the centralized unit (CU) and distributed unit (DU) in the RAN system are not limited in the embodiment of the present application.
  • the device used to realize the function of the network device may be a network device, or a device that can support the network device to realize the function, such as a chip system or a combination device or component that can realize the function of the network device. Can be installed in network equipment.
  • the device used to implement the functions of the network equipment is a network device as an example to describe the technical solutions provided in the embodiments of the present application.
  • the communication system shown in Figure 1 above can be applied to various radio access technologies (RAT).
  • the communications system shown in Figure 1 can be 4G (or called long term evolution). evolution, LTE)) communication system, which can also be a 5G (or called a new radio (NR)) communication system, or a transition system between an LTE communication system and a 5G communication system.
  • the transition system can also be called It is a 4.5G communication system, of course, it can also be a future communication system.
  • the network architecture and business scenarios described in the embodiments of this application are intended to illustrate the technical solutions of the embodiments of this application more clearly, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that with communication With the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.
  • At least one means one or more
  • plural means two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: the existence of A alone, both A and B, and B alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a). For example, "at least one of A, B, and C” includes A, B, C, AB, AC,
  • the terminal device 1021 and the terminal device 1022 can communicate with each other through side link resources.
  • side link resources For example, in the LTE communication system, a part of the uplink communication resources can be divided for D2D communication; in the NR communication system, the side link resources may also be dedicated resources for the side link, for example, it may be the side link Road communication is divided into a dedicated carrier for the side link, and terminal equipment can use the dedicated carrier for the side link to communicate.
  • the network device can configure the terminal device with a resource pool or an SL resource pool, or the terminal device can use a pre-configured resource pool.
  • network equipment uses system information block (system information block, SIB), cell-specific (cell-specific) radio resource control (radio resource control, RRC) signaling, or user-specific (UE -specific) RRC signaling configures the resource pool (resource pool) information of the terminal equipment in the cell.
  • SIB system information block
  • RRC radio resource control
  • UE -specific user-specific
  • RRC signaling configures the resource pool (resource pool) information of the terminal equipment in the cell.
  • the terminal device can determine the resource pool according to the predefined resource pool information.
  • the resource pool information is used to indicate the resource pool.
  • the resource pool may include one or more time units in the time domain.
  • One or more time units included in the time domain of a resource pool may be continuous in time, or Can be discrete.
  • a time unit may be a symbol, several symbols, a mini-slot, a slot, a subframe, or a radio frame, etc.
  • a radio frame may include multiple subframes
  • a subframe may include one or more time slots
  • a time slot may include at least one symbol
  • a wireless frame may include multiple time slots
  • a time slot may include at least A symbol.
  • a resource pool may include one or more frequency domain units in the frequency domain.
  • a frequency domain unit may be a resource block (resource block, RB), several RBs, or a subchannel (subchannel), etc., and a subchannel may include one Or multiple RBs.
  • mode 1 the network device can allocate resources to the terminal device.
  • mode 2 the terminal device can select resources by itself.
  • Mode 1 can also be referred to as the network device scheduling mode.
  • the side link resource is configured by the network device to the terminal, and is mainly used in scenarios with network coverage.
  • the network device can centrally allocate side link resources to the terminals within the coverage area of the network device based on the buffer state report (BSR) of the terminal within the coverage area of the network device, thereby This enables V2X communication between terminals within the coverage of the network device.
  • the coverage area of the network device 101 includes the terminal device 1021 and the terminal device 1022, then the network device 101 can be the terminal device 1021 and the terminal device according to the BSR of the terminal device 1021 and the terminal device 1022.
  • 1022 allocates side link resources respectively, so that V2X communication can be realized between the terminal device 1021 and the terminal device 1022.
  • the side link resources allocated by the network device may include initial resources and/or retransmission resources.
  • Mode 2 can also be called the terminal device autonomous selection mode.
  • the side link resources are independently selected by the terminal device, that is, the terminal device can independently select the side link resources in the resource pool.
  • the realization of mode 2 can be free from the limitation of network coverage, and can be applied to scenarios with network coverage and scenarios without network coverage.
  • the terminal device 1021 when the terminal device 1021 needs to send data to the terminal device 1022, the terminal device 1021 can independently select resources and use the selected resources to send data to the terminal device 1022.
  • the resources independently selected by the terminal device may include initial resources and/or retransmission resources.
  • the process can include the following steps:
  • step 301 the terminal device 1021 triggers resource selection at the time unit n.
  • the terminal device 1021 triggers resource selection in the time unit n.
  • the terminal device 1021 wants to send data and/or control information to the terminal device 1022, the resource selection may be triggered in the time unit n.
  • the terminal device 1021 will send data to the terminal device 1022 as an example, but what is actually sent may be control information and/or data, which is not specifically limited.
  • the terminal device 1021 may determine the resource sensing window (sensing windows) and the resource selection window (selection windows) according to the time unit n.
  • the resource sensing window can be [nt 0 , nt proc, 0 ], and t 0 is the boundary value of the resource listening window.
  • t 0 can be 1100 ms or 100 ms, or other values.
  • t proc,0 is the time for the terminal device to process the listening result.
  • the value of t proc,0 will be different, t proc,0 ⁇ 0.
  • the resource selection window can be [n+t 1 ,n+t 2 ], 0 ⁇ t 1 ⁇ t proc,1 , t proc,1 is the time for the terminal device to process the listening result.
  • the value of t proc,0 will also be different.
  • t 2_min ⁇ t 2 ⁇ t 2_max , t 2_max remaining (remaining) packet delay budget (packet delay budget, PDB), t 2_min can be predefined, or it can be a network device or other terminal device through RRC signal If configured, PDB is a parameter used to reflect the transmission delay requirement of the data to be sent, and the unit can be milliseconds (ms) or time slot. Taking the terminal device 1021 to send the first data to the terminal device 1022 as an example, the terminal device 1021 needs to ensure that the data is sent in the remaining PDB, otherwise it will be regarded as a sending failure.
  • the terminal device 1021 may determine the resources reserved by other terminal devices in the resource selection window according to the listening information on each time unit of the resource sensing window.
  • the listening information on each time unit of the resource sensing window may include sidelink control information (SCI) sent by other terminal devices received by the terminal device 1021 on each time unit, and the SCI may be used for Indicate the resources reserved by other terminal devices in the resource selection window.
  • SCI sidelink control information
  • Step 303 The terminal device 1021 measures the resources reserved by other terminal devices in the resource selection window to obtain the measurement result.
  • the measurement result may be at least one of reference signal received power (RSRP), reference signal receiving quality (RSRQ), and received signal strength indication (RSSI). item.
  • RSRP reference signal received power
  • RSSI received signal strength indication
  • the terminal device 1021 can obtain the physical side link shared channel of the first resource through measurement.
  • DMRS demodulation reference signal
  • PSSCH sidelink share channel
  • PSCCH physical sidelink control channel
  • DMRS is taken as an example, and other possible reference signals are not excluded.
  • Step 304 The terminal device 1021 determines the resource sensing result according to the RSRP measurement result.
  • the resource sensing result is used to indicate the available resources in the resource selection window, and the available resources in the resource selection window are other resources in the resource selection window except the resources whose RSRP measurement result is higher than the RSRP threshold (which can be expressed as Th RSRP ) .
  • step 305 the terminal device 1021 judges whether the available resources in the resource selection window exceed 20% of all resources in the resource selection window, if it does not reach 20%, execute step 306, and if it reaches 20%, execute step 307.
  • step 306 the terminal device 1021 increases the RSRP threshold by 3 dB, and performs step 302 again.
  • Step 307 The terminal device 1021 selects a side link resource for data transmission with the terminal device 1022 from the available resources in the resource selection window.
  • the initial value of the RSRP threshold may be predefined or determined by the terminal device based on a certain algorithm or strategy.
  • the initial value of the RSRP threshold can be a function of the service priority of the data to be sent by the terminal device itself and the service priority of the data indicated in the SCI received from other terminal devices.
  • the terminal device can be based on its own service priority. The service priority of the data to be sent and the service priority of the data indicated in the received SCI determine the initial value of the RSRP threshold.
  • the reserved resources in the resource selection window, the available resources in the resource window, and other resources in the resource selection window described above all refer to side link resources (ie, resources in the resource pool).
  • the terminal device when the terminal device autonomously selects resources, it needs to process the listening information on all time units of the resource sensing window. In order to save the power consumption of the terminal device, it is considered to introduce a partial sensing mechanism. In the partial sensing mechanism, the terminal device can only process the listening information on a part of the time unit of the resource sensing window.
  • the resource selection set of part of the sensing mechanism can be [n+a,n+b] in the time domain, that is, the resource selection set can include [n+a,n+b] side rows in the time domain.
  • Link resources [n+a,n+b] is a part of [n+t 1 ,n+t 2 ], or [n+a,n+b] is a child of [n+t 1 ,n+t 2] Set; [n+a,n+b] can include at least Y time units, Y can be predefined, or it can be configured by network equipment or other terminal equipment, such as network equipment or other terminal equipment can pass RRC signaling to configure.
  • the sensing resource corresponding to the resource selection set may include some time units in [nt 0 , nt proc, 0] in the time domain.
  • the sensing resource corresponding to the resource selection set satisfies: t yk ⁇ P ; where t y is any time unit in the resource selection set, k is a factor, and k is ⁇ 1,2,...,M ⁇ One or more values in, P is the step size, and M is a positive integer.
  • the bit sequence (or factor k) may be predefined, or may also be configured by network equipment or other terminal equipment through RRC signaling.
  • the step size P can be an integer greater than or equal to zero.
  • the value of the step size P may be related to the frame structure configuration adopted by the terminal device, where the frame structure is configured as a time division duplex (TDD) configuration or a frequency division duplex (FDD) configuration Configuration related.
  • TDD time division duplex
  • FDD frequency division duplex
  • different TDD configurations have different values of the corresponding step length P. See Table 1 for examples of step size P corresponding to different configurations.
  • D in Table 1 represents downlink
  • U represents uplink
  • S represents the corresponding subframe is a special subframe.
  • Table 1 may be predefined, or may also be configured by network equipment or other terminal equipment through RRC signaling.
  • the resource selection window includes time unit 33 to time unit 40.
  • the value of the step size P is 10.
  • the sensing resource corresponding to the resource selection set includes the time unit 26 (that is, t 36-1 ⁇ 10 ) and the time unit 25 (that is, t 35- 1 ⁇ 10 ), time unit 24 (that is, t 34-1 ⁇ 10 ), time unit 23 (that is, t 33-1 ⁇ 10 ), time unit 16 (that is, t 36-2 ⁇ 10 ), time unit 15 (that is, t 35-2 ⁇ 10 ), time unit 14 (that is, t 34-2 ⁇ 10 ), time unit 13 (that is, t 33-2 ⁇ 10 ), time unit 6 (that is, t 36-3 ⁇ 10 ), time unit 5 ( That is, t 35-3 ⁇ 10 ), time unit 4 (that is, t 34-3 ⁇ 10 ), and time unit 3 (that is, t 33-3 ⁇ 10 ).
  • a discontinuous reception (DRX) mechanism is introduced.
  • the terminal device can periodically turn on/off the receiver to detect the physical downlink control channel (PDCCH), thereby reducing the power consumption of the terminal device.
  • PDCCH physical downlink control channel
  • FIG 5 is a schematic diagram of a DRX cycle.
  • a DRX cycle can include an on duration time period (that is, the duration time period shown in Figure 5). During the on duration time period, the terminal device needs to listen to the PDCCH; a DRX cycle can also include possible sleep time, such as The DRX opportunity (opportunity for DRX) in Figure 1 represents the sleep time of the terminal device.
  • duration time period can also be called activation time or activation period or wake-up time or wake-up period
  • sleep time can also be called stop time or sleep time, etc.
  • Opportunity for DRX can also be expressed as non-active time (non-active time). ), etc., the embodiments of the present application do not limit specific names.
  • the embodiment of the present application introduces a discontinuous reception mechanism in the side-link communication. After introducing the discontinuous reception mechanism in the side link communication, the terminal device can receive the side link message during the active time of DRX, but no longer receive the side link message during the sleep time of DRX.
  • the sidelink message may include PSCCH and/or PSSCH and/or physical sidelink feedback channel (PSFCH).
  • a network device or other terminal device may send DRX configuration information to the terminal device through RRC signaling, the DRX configuration information may include DRX parameters, and the DRX parameters may include DRX cycle and DRX activation time timer (drx-on duration timer) And other parameters, where the DRX activation time timer can be used to indicate the duration of continuously listening for side link messages at the beginning of each DRX cycle.
  • the DRX activation time timer can be used to indicate the duration of continuously listening for side link messages at the beginning of each DRX cycle.
  • the sensing resource corresponding to the resource selection set includes a time unit 26, a time unit 25, a time unit 24, a time unit 23, a time unit 16, a time unit 15, a time unit 14, and a time unit 13 in the time domain.
  • time unit 6, time unit 5, time unit 4, and time unit 3 are within the sleep time of DRX, the terminal device will no longer receive other terminal devices on time unit 6, time unit 5, time unit 4, and time unit 3.
  • an embodiment of the present application provides a communication method for reducing transmission interference on a side link.
  • the terminal device after the terminal device determines that the sleep time of the first sensing resource and the DRX overlap in the time domain, it can determine the second sensing resource, and the second sensing resource does not overlap with the sleep time.
  • the number of time units may be greater than the number of time units in the first sensing resource that do not overlap with the sleep time, that is, the number of time units in the second sensing resource where the terminal device is listening is greater than the number of time units in the first sensing resource.
  • the terminal device when the sleep time of the first sensing resource and DRX overlap in the time domain, the terminal device no longer selects from the resource selection set for sending data according to the sensing result on the first sensing resource
  • the second sensing resource can be determined, and the resource for sending data can be selected from the resource selection set according to the sensing result on the second sensing resource, so as to facilitate the terminal device to exclude other terminals as much as possible
  • the resource reserved by the equipment reduces transmission interference.
  • the first sensing resource satisfies: Among them, t y is any time unit in the resource selection set, k 1 is the first factor, and the first factor k 1 is one or more values in ⁇ 1,2,...,M ⁇ , and P 1 is the first factor.
  • the first factor k 1 may be the sequence number of a bit with a value of 1 in the first bit sequence in the first bit sequence, and the number of bits in the first bit sequence is M.
  • the first factor k 1 , the second factor k 2 , the first step length P 1 , and the second step length P 2 are explained.
  • the second factor k 2 is different from the first factor k 1
  • the number of values of the second factor k 2 may be greater than the number of values of the first factor k 1 .
  • the number of values of the first factor k 1 is 5, and the number of values of the second factor k 2 is 8.
  • the number of time units included in the second sensing resource determined according to the second factor k 2 Greater than the number of time units included in the first sensing resource, thereby facilitating the realization that the number of time units in the second sensing resource that does not overlap with the sleep time is greater than the number of time units in the first sensing resource that does not overlap with the sleep time . That is, when the sensing resources of the resource selection set overlap with the sleep time, the number of time units included in the sensing resource can be increased to reduce the impact of the sleep time on the resource sensing result.
  • the number of values of the second factor k 2 is equal to the number of values of the first factor k 1 , but the value of the second factor k 2 is different from the value of the first factor k 1 .
  • the value of the second factor k 2 is different from the value of the first factor k 1 , which may mean that part or all of the values of the second factor k 2 and the first factor k 1 are different.
  • the number of time units included in the second sensing resource determined according to the second factor k 2 It is equal to the number of time units included in the first sensing resource, but because the value of the second factor k 2 is different from the value of the first factor k 1 , the time unit included in the second sensing resource is different from that of the first factor k 1.
  • the time units included in a sensing resource facilitate the realization that the number of time units that do not overlap with the sleep time in the second sensing resource is greater than the number of time units that do not overlap with the sleep time in the first sensing resource. That is, when the sensing resources of the resource selection set overlap with the sleep time, the time unit included in the sensing resources can be adjusted to reduce the impact of the sleep time on the resource sensing result.
  • the first step length P 1 or the second step length P 2 may be an integer greater than or equal to 0.
  • the first step length is 10, which can be understood as the first step length including 10 time units.
  • the second step length P 2 may be smaller than the first step length P 1 , that is, the number of time units included in the second step length P 2 is less than the number of time units included in the first step length P 1
  • the number of time units included in the first step length P 2 is 20, and the number of time units included in the second step length P 2 is 10.
  • the density of time units included in the second sensing resource determined according to the second factor k 2 is greater than that of the first sensing resource.
  • the density of the included time units facilitates the realization that the number of time units that do not overlap with the sleep time in the second sensing resource is greater than the number of time units that do not overlap with the sleep time in the first sensing resource. That is, when the sensing resources of the resource selection set overlap with the sleep time, the intensity of the time units included in the sensing resources can be adjusted to reduce the impact of the sleep time on the resource sensing result.
  • the terminal device may determine the second sensing resource according to the second factor k 2 and/or the second step size P 2 , where the second factor k 2 is ⁇ 1,2,...,N ⁇ One or more values of, N is a positive integer.
  • the second factor k 2 may be the sequence number of a bit with a value of 1 in the second bit sequence in the second bit sequence.
  • the terminal device determining the second sensing resource according to the second factor k 2 and/or the second step size P 2 may include:
  • the terminal device determines the second sensing resource according to the second factor k 2.
  • the terminal device may determine the second sensing resource according to the second factor k 2 and the first step length P 1 ; in this case, the second sensing resource satisfies:
  • Case 2 The terminal device determines the second sensing resource according to the second step size P 2. For example, the terminal device may determine the second sensing resource according to the first factor k 1 and the second step size P 2. In this case, the second sensing resource satisfies:
  • the first sensing resource is shown in (a) in FIG. 9, and the second sensing resource is shown in (b) in FIG. 9.
  • Case 3 The terminal device determines the second sensing resource according to the second factor k 2 and the second step size P 2. In this case, the second sensing resource satisfies:
  • the terminal device may determine the second sensing resource according to the offset and the number of time units X.
  • the second sensing resource includes X consecutive time units, and the consecutive X time units are located in DRX.
  • X is a positive integer.
  • the value of the offset and/or X may be predefined, or may also be configured by network equipment or other terminal equipment through RRC signaling.
  • the offset here can be understood as the offset relative to the end time point of the sleep time.
  • the end time point of the sleep time is time unit 6. If the offset is 1 time unit, If X is 20, the second sensing resource may include time unit 8 to time unit 28.
  • the second bit sequence (or the second factor k 2 ) may be predefined or configured by a network device or other terminal device.
  • the network device may send DRX configuration information to the terminal device, and the DRX configuration information includes the second bit sequence; that is, the second bit sequence may be configured simultaneously with the DRX parameters.
  • the second bit sequence may also be pre-configured. When the terminal device is outside the network coverage, the pre-configured second bit sequence may be used.
  • the network device can configure the first bit sequence for the terminal device through RRC signaling 1, and then update the configuration for the terminal device through RRC signaling 2, for example, configure the second bit sequence for the terminal device through RRC signaling 2. In this case, it can be understood as: the second bit sequence covers or updates or replaces the original first bit sequence.
  • the second step length P 2 may be predefined or configured by network equipment or other terminal equipment.
  • the network device may send DRX configuration information to the terminal device, and the DRX configuration information includes the second step size P 2 .
  • Table 2 may be predefined, or a network device or other terminal device may configure Table 2 for the terminal device through RRC signaling, and Table 2 includes the second step size P 2 corresponding to different configurations.
  • the terminal device can determine the first step length P 1 based on Table 1, and the second step length P 2 based on Table 2.
  • Table 3 may be predefined, or the network device or other terminal equipment may configure Table 3 for the terminal device through RRC signaling. Table 3 includes the first step P 1 and the second step size corresponding to different configurations.
  • the terminal device can determine the first step length P 1 and the second step length P 2 based on Table 3.
  • Table 4 may be predefined, or the network device or other terminal equipment may configure Table 4 for the terminal device through RRC signaling.
  • Table 4 includes the second step size P 2 and the first step size corresponding to different configurations.
  • P 1 the terminal device can determine the first step length P 1 and the second step length P 2 based on Table 4.
  • the second bit sequence may also be pre-configured. When the terminal device is outside the network coverage, the pre-configured second bit sequence may be used.
  • the network device can configure the first step P 1 for the terminal device through RRC signaling 1, and then update the configuration for the terminal device through RRC signaling 2, for example, configure the terminal device with RRC signaling 2.
  • the step size P 2 in this case, can be understood as: the second step size P 2 covers or updates or replaces the original first step size P 1 .
  • the first step is long P 1 Second step length P 2 TDD configuration 0 60 50 TDD configuration 1 40 30 TDD configuration 2 20 10 TDD configuration 3 30 20 TDD configuration 4 20 10 TDD configuration 5 10 5 TDD configuration 6 50 40 FDD configuration 100 90
  • the relevant parameters (such as the first factor k 1 , the first step length P 1 , the second factor k 2 , the second step length P 2 , the offset, and X) are determined by the network device through RRC
  • the signaling configuration is described as an example.
  • FIG. 10 is a schematic diagram of a process corresponding to the communication method provided by an embodiment of this application. As shown in FIG. 10, the process may include:
  • Step 1001 The network device sends first configuration information to the terminal device, where the first configuration information includes a first bit sequence.
  • the terminal device can receive the first configuration information, and obtain the first factor k 1 according to the first bit sequence.
  • Step 1002 The network device sends second configuration information to the terminal device, where the second configuration information includes a second bit sequence.
  • the terminal device can receive the second configuration information, and obtain the second factor k 2 according to the second bit sequence.
  • the network device can send the first configuration information and the second configuration information to the terminal device through the same message.
  • the message can be RRC signaling or system message or other possible messages, which is not specifically limited; the message is Take RRC signaling as an example.
  • a network device may send first configuration information and second configuration information to a terminal device through RRC signaling 1.
  • the network device may send the first configuration information and the second configuration information to the terminal device through different messages.
  • the network device sends the first configuration information to the terminal device through message 1 and sends the second configuration information to the terminal device through message 2.
  • Information wherein, message 1 may be RRC signaling or system message or other possible messages, and message 2 may also be RRC signaling or system message or other possible messages, which is not specifically limited.
  • Step 1003 The terminal device triggers resource selection at time unit n.
  • the terminal device can determine the resource selection set t y , such as the resource selection set shown in FIG. 4B, and know the resource selection set and the first sensing corresponding to the first factor k 1 and the first step length P 1 Resources, the first sensing resource satisfies:
  • the terminal device determines the resource selection set, which may mean: the terminal device determines the resource selection window to be [n+t 1 ,n+t 2 ] according to the time unit n, and then in [n+t 1 ,n+t 2 ] Determine [n+a,n+b], the resource selection set includes [n+a,n+b] side link resources in the time domain.
  • Step 1004 The terminal device determines whether the sleep time of the first sensing resource and the DRX overlap in the time domain, if there is overlap, step 1005 is performed, and if there is no overlap, step 1008 is performed.
  • Step 1005 The terminal device determines whether the preset condition is met, if it is determined that the preset condition is met, step 1006 is executed, and if it is determined that the preset condition is not met, step 1008 is executed.
  • determining that the preset condition is met may include at least one of the following: (1) Determining that the first ratio is greater than or equal to a first threshold, and the first ratio is the time that overlaps the sleep time in the first sensing resource in the time domain. The ratio of the number of units to the number of time units included in the first sensing resource; where the first ratio is greater than or equal to the first threshold, indicating that the first sensing resource overlaps the sleep time in the time domain in the time domain There are a large number of, that is, the overlap of the sleep time of the first sensing resource and the DRX in the time domain has a greater impact on the accuracy of the sensing result. (2) Determine that the channel busy ratio (CBR) of the resource selection set is greater than or equal to the second threshold.
  • CBR channel busy ratio
  • the CBR of the resource selection set is greater than or equal to the second threshold, indicating that the channel congestion is relatively high. In the resource selection set There are fewer resources available. (3) It is determined that the first ratio is greater than or equal to the first threshold, and the CBR of the resource selection set is greater than or equal to the second threshold.
  • the first threshold and the second threshold may be predefined, or may also be configured by a network device or other terminal devices, which are not specifically limited. It should be noted that the CBR of the resource selection set can also be replaced with the channel occupancy ratio (CR) of the resource selection set.
  • the CBR of the resource selection set will be described in detail below.
  • the CBR of the resource selection set may refer to the CBR measured when the terminal device triggers resource selection in the resource selection set, that is, the CBR measured by the terminal device in the time unit n.
  • the terminal device can determine the resources reserved by other terminal devices according to the SCI sent by other terminal devices received within the time window [na, n-1].
  • a can be predefined, or can be configured by network equipment or other terminal equipment.
  • network equipment can configure the value of a through the high-level parameter timeWindowSize-CBR; in one example, a can be equal to 100 or 100*2 u time units, u is a positive integer.
  • the measurement result here may include at least one of RSRP, RSRQ, and RSSI.
  • the CR of the resource selection set will be described in detail below.
  • the CR of the resource selection set may refer to the CR evaluated when the terminal device triggers resource selection in the resource selection set, that is, the CR measured by the terminal device in the time unit n.
  • the terminal device can determine the resources reserved by other terminal devices in the time window [n,n+b] according to the SCI sent by other terminal devices received in the time window [na,n-1], such as .
  • a may be predefined, or may also be configured by a network device or other terminal equipment, and specifically may refer to a described in the above CBR.
  • Step 1006 The terminal device determines the second sensing resource corresponding to the resource selection set according to the second factor k 2 and the first step length P 1, and the second sensing resource satisfies:
  • Step 1007 The terminal device selects a resource for sending data from the resource selection set according to the sensing result of the second sensing resource.
  • Step 1008 The terminal device selects a resource for sending data from the resource selection set according to the sensing result of the first sensing resource.
  • the terminal device can also select a resource for sending data from the resource selection set according to a preset rule, for example, a random selection method is used to select a resource for sending data from the resource selection set, thereby improving the efficiency of resource selection.
  • a preset rule for example, a random selection method is used to select a resource for sending data from the resource selection set, thereby improving the efficiency of resource selection.
  • the second sensing resource is used to satisfy: Described as an example.
  • the above process can also be applied to the second sensing resource meeting
  • the network device can configure the second step size P 2 , and no longer configure the second factor k 2 ; or, the above process can also be applied to the second sensing resource meeting
  • the network device can configure the second factor k 2 and the second step size P 2 ; or, the above process can also be applied to the situation where the second sensing resource includes X consecutive time units, in this case In this case, the network device can configure the value and offset of X.
  • the terminal device judges whether the preset condition is met, and adopts the corresponding processing method according to the judgment result, so that the realization is more reasonable. For example, when the preset condition is met, it means that the overlap of the sleep time of the first sensing resource and the DRX in the time domain has a greater impact on the accuracy of the sensing result. Therefore, the terminal device can base on the sensing result of the second sensing resource. , Select the resource used to send data from the resource selection set, thereby effectively improving the accuracy of the sensing result and reducing transmission interference; and when the preset conditions are not met, it means that the sleep time of the first sensing resource and DRX is time. The domain overlap has little effect on the accuracy of the sensing result. In this case, the terminal device can select the resource for sending data from the resource selection set according to the sensing result of the first sensing resource, without further determining The second sensing resource can effectively save the processing burden of the terminal device.
  • FIG. 11 is a schematic diagram of another process corresponding to the communication method provided by an embodiment of this application. As shown in FIG. 11, the process may include:
  • Step 1101 The network device sends first configuration information to the terminal device, where the first configuration information includes a first bit sequence.
  • the terminal device can receive the first configuration information, and obtain the first factor k 1 according to the first bit sequence.
  • Step 1102 The network device sends second configuration information to the terminal device, where the second configuration information includes multiple bit sequences.
  • the terminal device can receive the second configuration information, and obtain multiple factors k according to multiple bit sequences.
  • the second configuration information may also include multiple ratio ranges respectively corresponding to the multiple bit sequences, for example, the smaller the ratio range, the smaller the number of bits with a value of 1 in the bit sequence corresponding to the ratio range; Conversely, the larger the ratio range, the greater the number of bits with a value of 1 in the bit sequence corresponding to the ratio range.
  • Table 5 it is an example of the correspondence between bit sequence and bit range.
  • the ratio range 1 is smaller than the ratio range 2, the number of bits with a value of 1 in the bit sequence 1 may be less than the number of bits with a value of 1 in the bit sequence 2.
  • the second configuration information may also include multiple CBR value ranges corresponding to multiple bit sequences.
  • the smaller the CBR value range the bit sequence corresponding to the CBR value range has a value of 1.
  • the smaller the number of bits conversely, the larger the CBR value range, the larger the number of bits with a value of 1 in the bit sequence corresponding to the CBR value range.
  • Bit sequence CBR value range Bit sequence 1 CBR value range 1 (0 ⁇ a ⁇ 0.3) Bit sequence 2 CBR value range 2 (0.3 ⁇ a ⁇ 0.6)
  • the number of bits with a value of 1 in the bit sequence 1 may be less than the number of bits with a value of 1 in the bit sequence 2.
  • the second configuration information may also include multiple ratio ranges and multiple CBR value ranges respectively corresponding to multiple bit sequences. As shown in Table 7, the ratio range and CBR value range of the bit sequence are Correspondence example.
  • Table 7 Examples of correspondence between bit sequence, ratio range, and CBR range
  • Bit sequence Ratio range CBR value range Bit sequence 1 Ratio range 1 (0 ⁇ a ⁇ 0.3) CBR value range 1 (0 ⁇ a ⁇ 0.3) Bit sequence 2 Ratio range 2 (0.3 ⁇ a ⁇ 0.6) CBR value range 2 (0.3 ⁇ a ⁇ 0.6) Bit sequence 3 Ratio range 3 (0.6 ⁇ a ⁇ 1) CBR value range 3 (0.6 ⁇ a ⁇ 1)
  • the foregoing second configuration information may also include the maximum number of bit sequences configured by the second configuration information.
  • Step 1103 The terminal device triggers resource selection in time unit n.
  • the terminal device can determine the resource selection set t y , such as the resource selection set shown in FIG. 4B, and know the resource selection set and the first sensing corresponding to the first factor k 1 and the first step length P 1 Resources, the first sensing resource satisfies:
  • Step 1104 The terminal device determines whether the sleep time of the first sensing resource and the DRX overlap in the time domain, if there is overlap, step 1105 is performed, and if there is no overlap, step 1107 is performed.
  • Step 1105 The terminal device determines the second sensing resource according to the ratio range to which the first ratio belongs (and/or the CBR value range to which the CBR of the resource selection set belongs).
  • the ratio range to which the first ratio belongs is ratio range 1
  • bit sequence 1 is selected from multiple bit sequences (for example, bit sequence 1 corresponds to the second factor k 2 ), and then determined according to the second factor k 2 and the first step length
  • the second sensing resource, the second sensing resource satisfies:
  • Step 1106 The terminal device selects a resource for sending data from the resource selection set according to the sensing result of the second sensing resource.
  • Step 1107 The terminal device selects a resource for sending data from the resource selection set according to the sensing result of the first sensing resource.
  • the corresponding relationship between the bit sequence and the ratio range and/or the CBR value range may also be predefined. In this case, the second configuration information may not be required. Including the ratio range and/or CBR value range corresponding to the bit sequence.
  • the second sensing resource is used to satisfy: (That is, configuring multiple bit sequences) is described as an example.
  • the above process can also be applied to the second sensing resource meeting
  • the network device can configure multiple step sizes P instead of multiple bit sequences (or multiple factors k); or, the above process can also be applied to the second sensing resource satisfying
  • the network device can be configured with multiple step sizes P and multiple factors k; or, the above process can also be applied to the case where the second sensing resource includes X consecutive time units, in this case below, the network device can configure multiple X values and multiple offsets.
  • multiple step sizes P include step size 1, step size 2, and step size 3.
  • Table 3 and Table 4 shows the configuration of the second step P 2 embodiment, when a plurality of steps P, may in Table 2, Table 3 and Table 4 extend.
  • Table 8 includes multiple step sizes P corresponding to each configuration (for example, step size 1, step size 2, and step size 3).
  • Table 9 which includes multiple step sizes P (such as step size 1, step size 2, and step size 3) and the first step corresponding to different configurations Long P 1 .
  • Step size 1 Step size 2 Step size 3 TDD configuration 0 50 40 30 TDD configuration 1 ... ... ... TDD configuration 2 ... ... ... TDD configuration 3 ... ... ... TDD configuration 4 ... ... ... TDD configuration 5 ... ... ... TDD configuration 6 ... ... ... FDD configuration ... ... ... ...
  • the terminal device can select the second factor k 2 from multiple factors k according to the first ratio and/or CBR, so that the second sensing resource determined according to the second factor k 2 is more reasonable.
  • step 1005 is an optional step, that is, when the terminal device determines that the first sensing resource and the sleep time of DRX overlap in the time domain, step 1006 can also be directly executed. .
  • the terminal device may determine the first resource selection set, and respond to the first sensing resource corresponding to the first resource selection set and the sleep time of DRX overlapping in the time domain. Shift the first resource selection set upward and backward to obtain the second resource selection set; wherein, the end time point of the second resource selection set is before the first time point, and the first time point is determined according to the data transmission delay requirement;
  • the terminal device may select a resource for sending the data from the second resource selection set; the number of time units that do not overlap with the sleep time in the second sensing resource corresponding to the second resource selection set is greater than that in the first sensing resource The number of time units that do not overlap with the sleep time.
  • the terminal device can no longer select resources from the first resource selection set, but can determine The second resource selection set is selected, and resources are selected from the second resource selection set; thereby, it is convenient for the terminal device to exclude resources that have been reserved by other terminal devices in the second resource selection set as much as possible, thereby reducing transmission interference.
  • the data transmission delay requirement may be the PDB of the data.
  • shifting the first resource selection set backward in the time domain to obtain the second resource selection set can be understood as: the start time point of the second resource selection set is relative to the start time point of the first resource selection set The first time period is backward in the time domain, and the end time point of the second resource selection set is backward the first time period in the time domain relative to the end time point of the first resource selection set.
  • the first duration may include one or more time units.
  • the number of time units included in the first duration may depend on the internal implementation of the terminal device.
  • the first duration may include K time units, and K may be less than or equal to the first sensing resource The number of time units that overlap with the sleep time in the time domain. For example, referring to (a) in FIG.
  • a possible idea provided by the embodiment of the present application is: according to the second sensing
  • the resource selection is based on the sensing result on the resource, and the number of time units in the second sensing resource that do not overlap with the sleep time is greater than the number of time units in the first sensing resource that does not overlap the sleep time.
  • the terminal device can determine the second sensing resource in many ways. For example, the network device can configure the terminal device with related parameters for determining the second sensing resource, and the terminal device can determine the second sensing resource according to the related parameters.
  • the terminal device may adjust the first resource selection set, and then determine the second sensing resource based on the adjusted second resource selection set; in this solution, the terminal device determines the second sensing resource by adjusting the resource selection set. Since the terminal device clearly knows the overlap between the first sensing resource and the sleep time of DRX, the resource selection set can be adjusted according to the overlap to achieve the number of time units in the second sensing resource that do not overlap with the sleep time The purpose of being larger than the number of time units in the first sensing resource that does not overlap with the sleep time has strong flexibility.
  • the above-mentioned embodiments in this application are some possible specific implementations based on the above-mentioned ideas.
  • the above-mentioned embodiments can also be modified based on the above-mentioned ideas, for example, a terminal device
  • the first resource selection set is determined, and in response to the first sensing resource corresponding to the first resource selection set and the sleep time of DRX overlapping in the time domain, the first resource selection set may also be shifted forward in the time domain to obtain The second resource selection set, and the terminal device can select the resource for sending the data from the second resource selection set.
  • the first sensing resource overlaps with the sleep time of DRX and the terminal device is triggered to determine the second sensing resource as an example.
  • the resource detection scheme can also be applied to other triggering reasons (for example, because the terminal device activates the energy-saving mechanism, the side link message is not listened to in some time units in the first sensing resource, or to increase the partial sensing
  • the accuracy of the resource selection of the method is not specifically limited in the case of using the second sensing resource for sensing).
  • a certain parameter involved in the embodiment of this application (such as the first factor k 1 , the second factor k 2 , the first step length P 1 or the second step length P 2 , X), 1If the parameter is "Predefined” can be understood as the parameter that has been configured for the terminal device when it leaves the factory. 2 If the parameter is "configured by the network device", it can mean that the parameter is set by the network device through RRC signaling or media access control (media access control, MAC) control element (CE) or other possibilities The signaling configuration.
  • the parameter is configured by the network device through RRC signaling, which can mean that when the terminal device is initially connected, the network device configures the parameter for the terminal device through RRC signaling (this situation may also be referred to as pre-configuring the parameter ), or, it can also mean that after the initial access, when the terminal device is within the coverage of the network device, the network device configures the parameter for the terminal device through RRC signaling.
  • the network device configures the terminal device with the initial value or default value of the parameter through RRC signaling.
  • the network equipment updates this parameter for the terminal equipment through RRC signaling.
  • the parameter is "configured by other terminal equipment" it can mean that other terminal equipment sends RRC signaling to the terminal equipment through the PC5 interface to configure the parameter; for example, the other terminal equipment here may be Refers to the terminal device that has established a communication connection with the terminal device.
  • the solutions in the embodiments of the present application may be applicable to terminal devices of partial sensing mechanisms, or may also be applicable to terminal devices of other sensing mechanisms (such as full sensing mechanisms), and the specifics are not limited.
  • the terminal device may include a hardware structure and/or software module corresponding to each function.
  • the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of this application.
  • the embodiment of the present application may divide the terminal device into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • FIG. 13 shows a possible exemplary block diagram of the communication device involved in the embodiment of the present application.
  • the apparatus 1300 may include: a processing unit 1302 and a transceiving unit 1303.
  • the processing unit 1302 is used to control and manage the actions of the device 1300.
  • the transceiver unit 1303 is used to support communication between the apparatus 1300 and other devices.
  • the transceiving unit 1303 is also called a transceiving unit, and may include a receiving unit and/or a sending unit, which are used to perform receiving and sending operations, respectively.
  • the apparatus 1300 may further include a storage unit 1301 for storing program codes and/or data of the apparatus 1300.
  • the processing unit 1302 may support the apparatus 1300 to perform the actions of the terminal device in the foregoing method examples.
  • the processing unit 1302 mainly executes the internal actions of the terminal device in the method example, and the transceiving unit 1303 may support communication between the apparatus 1300 and other devices.
  • the processing unit 1302 is configured to determine that the first sensing resource and the sleep time of discontinuous reception of DRX overlap in the time domain; determine the second sensing resource, the second sensing resource The number of time units that do not overlap with the sleep time is greater than the number of time units that do not overlap with the sleep time in the first sensing resource; and, according to the sensing result on the second sensing resource , Select the resource for the transceiver unit 1303 to send data from the resource selection set.
  • the first sensing resource satisfies: Where t y is any subframe in the resource selection set, k 1 is the first factor, and the first factor k 1 is one or more values in ⁇ 1,2,...,M ⁇ , and P 1 is The first step is long, the M is a positive integer; the processing unit 1302 is specifically configured to: determine the second sensing resource according to the second factor k 2 and/or the second step size P 2 , the second factor k 2 is ⁇ 1,2,...,N ⁇ , the N is a positive integer, wherein the second factor k 2 and the first factor k 1 are different, and the second step size P 2 is equal to The first step length P 1 is different.
  • the second step length P 2 is smaller than the first step length P 1 .
  • the processing unit 1302 is further configured to: determine that a first ratio is greater than or equal to a first threshold, where the first ratio is between the first sensing resource and the sleep time The ratio of the number of time units overlapping in the time domain to the number of time units included in the first sensing resource; and/or determining that the channel busy rate CBR of the resource selection set is greater than or equal to a second threshold.
  • the second factor k 2 and/or the second step size P 2 are based on the first ratio and/or the CBR of the resource selection set from at least two factors k and / Or selected from at least two steps P; wherein, the first ratio is the number of time units in the first sensing resource that overlaps the sleep time in the time domain and the first sensing The ratio of the number of time units included in the resource.
  • the processing unit 1302 is further configured to: determine that the first ratio belongs to a first ratio range, where the first ratio range is one of at least two ratio ranges, so The at least two ratio ranges correspond to the at least two factors k and/or the at least two step sizes P; and/or it is determined that the CBR of the resource selection set belongs to the first CBR value range, where The first CBR value range is one of at least two CBR value ranges, and the at least two CBR value ranges correspond to the at least two factors k and/or the at least two step sizes P.
  • the first factor k 1 and/or the second factor k 2 are predefined; or, the transceiver unit 1303 is further configured to: receive configuration information, the configuration The information includes the first factor k 1 and/or the second factor k 2 .
  • the first step length P 1 and the second step length P 2 are predefined; or, the transceiver unit 1303 is further configured to: receive configuration information, the configuration The information is used to determine the first step length P 1 and the second step length P 2 .
  • the at least two factors k and/or the at least two step lengths P are predefined; or, the transceiver unit 1303 is further configured to: receive configuration information,
  • the configuration information includes the at least two factors k and/or the at least two step sizes P.
  • the second sensing resource includes X consecutive time units, and the consecutive X time units are within the active time of the DRX; X is a positive integer.
  • the transceiver unit 1303 is further configured to: receive configuration information, where the configuration information is used to determine the value of X.
  • the processing unit 1302 determines the first resource selection set, and responds to the first sensing resource corresponding to the first resource selection set and the sleep time of DRX overlapping in the time domain, and in the time domain Shift the first resource selection set backward to obtain a second resource selection set; wherein the end time point of the second resource selection set is before the first time point, and the first time point is based on the data transmission delay Required to be determined; and, selecting a resource from the second resource selection set for the transceiving unit 1303 to send the data; wherein, the second sensing resource corresponding to the second resource selection set is not related to the dormant The number of time units that overlap in time is greater than the number of time units that do not overlap with the sleep time in the first sensing resource.
  • the processing unit 1302 is specifically configured to: shift the first resource selection set backward by K time units in the time domain to obtain the second resource selection set, and K is less than or It is equal to the number of time units where the first sensing resource and the sleep time overlap in the time domain.
  • each unit in the device can be all implemented in the form of software called by processing elements; they can also be all implemented in the form of hardware; part of the units can also be implemented in the form of software called by the processing elements, and some of the units can be implemented in the form of hardware.
  • each unit can be a separately set up processing element, or it can be integrated in a certain chip of the device for implementation.
  • it can also be stored in the memory in the form of a program, which is called and executed by a certain processing element of the device. Function.
  • each step of the above method or each of the above units may be implemented by an integrated logic circuit of hardware in a processor element or implemented in a form of being called by software through a processing element.
  • the unit in any of the above devices may be one or more integrated circuits configured to implement the above method, for example: one or more application specific integrated circuits (ASIC), or, one or Multiple microprocessors (digital singnal processors, DSPs), or, one or more field programmable gate arrays (Field Programmable Gate Arrays, FPGAs), or a combination of at least two of these integrated circuits.
  • ASIC application specific integrated circuits
  • DSPs digital singnal processors
  • FPGAs Field Programmable Gate Arrays
  • the unit in the device can be implemented in the form of a processing element scheduler
  • the processing element can be a processor, such as a general-purpose central processing unit (central processing unit, CPU), or other processors that can call programs.
  • CPU central processing unit
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • the above receiving unit is an interface circuit of the device for receiving signals from other devices.
  • the receiving unit is an interface circuit used by the chip to receive signals from other chips or devices.
  • the above unit for sending is an interface circuit of the device for sending signals to other devices.
  • the sending unit is an interface circuit used by the chip to send signals to other chips or devices.
  • the communication device in the foregoing embodiment may be a terminal device, or may be a chip applied to a terminal device, or other combination devices, components, etc. that can realize the functions of the foregoing terminal device.
  • the transceiver unit may be a transmitter and a receiver, or an integrated transceiver, which may include an antenna and a radio frequency circuit, and the processing unit may be a processor, such as a baseband chip.
  • the transceiver unit may be a radio frequency unit
  • the processing unit may be a processor.
  • the transceiver unit may be an input/output interface of the chip system
  • the processing unit may be a processor of the chip system, such as a central processing unit (CPU).
  • CPU central processing unit
  • FIG. 14 is a schematic structural diagram of a terminal device provided by an embodiment of the application, which may be the terminal device in the above embodiment, and is used to implement the operation of the terminal device in the above embodiment.
  • the terminal device includes: an antenna 1410, a radio frequency part 1420, and a signal processing part 1430.
  • the antenna 1410 is connected to the radio frequency part 1420.
  • the radio frequency part 1420 receives the information sent by the network device through the antenna 1410, and sends the information sent by the network device to the signal processing part 1430 for processing.
  • the signal processing part 1430 processes the information of the terminal equipment and sends it to the radio frequency part 1420
  • the radio frequency part 1420 processes the information of the terminal equipment and sends it to the network equipment via the antenna 1410.
  • the signal processing part 1430 may include a modem subsystem, which is used to process the various communication protocol layers of the data; it may also include a central processing subsystem, which is used to process the terminal device operating system and application layer; in addition, it may also Including other subsystems, such as multimedia subsystems, peripheral subsystems, etc., where the multimedia subsystem is used to control the terminal device camera, screen display, etc., and the peripheral subsystem is used to realize the connection with other devices.
  • the modem subsystem can be a separate chip.
  • the modem subsystem may include one or more processing elements 1431, for example, including a main control CPU and other integrated circuits.
  • the modem subsystem may also include a storage element 1432 and an interface circuit 1433.
  • the storage element 1432 is used to store data and programs, but the program used to execute the method performed by the terminal device in the above method may not be stored in the storage element 1432, but is stored in a memory outside the modem subsystem, When in use, the modem subsystem is loaded and used.
  • the interface circuit 1433 is used to communicate with other subsystems.
  • the modem subsystem can be implemented by a chip, the chip includes at least one processing element and an interface circuit, wherein the processing element is used to execute each step of any method executed by the above terminal device, and the interface circuit is used to communicate with other devices.
  • the unit for the terminal device to implement each step in the above method can be implemented in the form of a processing element scheduler.
  • the device for the terminal device includes a processing element and a storage element, and the processing element calls the program stored by the storage element to Perform the method performed by the terminal device in the above method embodiment.
  • the storage element may be a storage element whose processing element is on the same chip, that is, an on-chip storage element.
  • the program used to execute the method executed by the terminal device in the above method may be a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the processing element calls or loads a program from the off-chip storage element on the on-chip storage element to call and execute the method executed by the terminal device in the above method embodiment.
  • the unit of the terminal device that implements each step in the above method may be configured as one or more processing elements, and these processing elements are arranged on the modem subsystem, where the processing element may be an integrated circuit, For example: one or more ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip.
  • the units of the terminal device that implement each step in the above method can be integrated together and implemented in the form of an SOC, and the SOC chip is used to implement the above method.
  • the chip can integrate at least one processing element and a storage element, and the processing element can call the stored program of the storage element to implement the method executed by the above terminal device; or, the chip can integrate at least one integrated circuit to implement the above terminal The method executed by the device; or, it can be combined with the above implementations.
  • the functions of some units are implemented in the form of calling programs by processing elements, and the functions of some units are implemented in the form of integrated circuits.
  • the above apparatus for terminal equipment may include at least one processing element and an interface circuit, wherein at least one processing element is used to execute any of the methods performed by the terminal equipment provided in the above method embodiments.
  • the processing element can execute part or all of the steps executed by the terminal device in the first way: calling the program stored in the storage element; or in the second way: combining instructions through the integrated logic circuit of the hardware in the processor element Part or all of the steps executed by the terminal device are executed in the manner; of course, part or all of the steps executed by the terminal device may also be executed in combination with the first manner and the second manner.
  • the processing element here is the same as that described above, and can be implemented by a processor, and the function of the processing element can be the same as that of the processing unit described in FIG. 13.
  • the processing element may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or, one or more microprocessors DSP , Or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • the storage element may be realized by a memory, and the function of the storage element may be the same as the function of the storage unit described in FIG. 13.
  • the storage element may be realized by a memory, and the function of the storage element may be the same as the function of the storage unit described in FIG. 13.
  • the storage element can be one memory or a collective term for multiple memories.
  • the terminal device shown in FIG. 14 can implement various processes related to the terminal device in the foregoing method embodiments.
  • the operations and/or functions of the various modules in the terminal device shown in FIG. 14 are used to implement the corresponding processes in the foregoing method embodiments.
  • this application can be provided as a method, a system, or a computer program product. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

Landscapes

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

Abstract

L'invention concerne un appareil et un procédé de communication, ceux-ci pouvant être appliqués à D2D ou à l'Internet des véhicules, par exemple, V2X et LTE-V, ou pouvant être appliqués à des domaines tels que la conduite intelligente et les véhicules connectés intelligents. Le procédé comprend les étapes suivantes : après avoir déterminé qu'une première ressource de détection chevauche un temps de veille de DRX concernant un domaine temporel, un équipement terminal est apte à déterminer une seconde ressource de détection, et à sélectionner, à partir d'un ensemble de sélection de ressources et selon un résultat de détection concernant la seconde ressource de détection, une ressource qui est utilisée pour envoyer des données. Au moyen de la solution, le nombre d'unités temporelles, qui ne se chevauchent pas avec un temps de veille, dans une seconde ressource de détection peut être supérieur au nombre d'unités temporelles, qui ne se chevauchent pas avec le temps de veille, dans une première ressource de détection, c'est-à-dire que le nombre d'unités temporelles, qui sont utilisées pour effectuer une interception par un équipement terminal, dans la seconde ressource de détection est supérieur au nombre d'unités temporelles, qui sont utilisées pour effectuer une interception par l'équipement terminal, dans la première ressource de détection, aidant ainsi l'équipement terminal pour exclure, dans la plus grande mesure possible, des ressources qui sont réservées par d'autres équipements terminaux, de façon à réduire l'interférence de transmission.
PCT/CN2021/096499 2020-05-29 2021-05-27 Procédé et appareil de communication WO2021239064A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010479923.5 2020-05-29
CN202010479923.5A CN113747577B (zh) 2020-05-29 2020-05-29 通信方法及装置

Publications (1)

Publication Number Publication Date
WO2021239064A1 true WO2021239064A1 (fr) 2021-12-02

Family

ID=78725159

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/096499 WO2021239064A1 (fr) 2020-05-29 2021-05-27 Procédé et appareil de communication

Country Status (2)

Country Link
CN (1) CN113747577B (fr)
WO (1) WO2021239064A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI817548B (zh) * 2022-06-09 2023-10-01 安研科技股份有限公司 感測系統及其控制方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115190446A (zh) * 2021-04-01 2022-10-14 大唐移动通信设备有限公司 直通链路资源的部分感知方法及设备
WO2024113888A1 (fr) * 2023-07-14 2024-06-06 Lenovo (Beijing) Limited Sélection de ressources pour une transmission de liaison latérale

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160219443A1 (en) * 2013-09-15 2016-07-28 Lg Electronics Inc. Discontinuous reception supporting method in wireless communication system supporting change of usage of radio resource and apparatus therefor
WO2018027499A1 (fr) * 2016-08-08 2018-02-15 华为技术有限公司 Procédé de communication de dispositif à dispositif, et dispositif terminal
WO2018053857A1 (fr) * 2016-09-26 2018-03-29 华为技术有限公司 Procédé, appareil et système de transmission de données de dispositif à dispositif

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108093464B (zh) * 2016-11-23 2021-08-20 普天信息技术有限公司 资源配置方法和装置
EP3672338B1 (fr) * 2017-09-29 2022-11-30 LG Electronics Inc. Procédé de transmission d'un message v2x effectué par un terminal dans un système de communication sans fil, et terminal mettant en oeuvre ce procédé

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160219443A1 (en) * 2013-09-15 2016-07-28 Lg Electronics Inc. Discontinuous reception supporting method in wireless communication system supporting change of usage of radio resource and apparatus therefor
WO2018027499A1 (fr) * 2016-08-08 2018-02-15 华为技术有限公司 Procédé de communication de dispositif à dispositif, et dispositif terminal
WO2018053857A1 (fr) * 2016-09-26 2018-03-29 华为技术有限公司 Procédé, appareil et système de transmission de données de dispositif à dispositif

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HUAWEI, HISILICON: "Sidelink resource allocation to reduce power consumption", 3GPP DRAFT; R1-2100205, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. E-meeting; 20210125 - 20210205, 19 January 2021 (2021-01-19), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051970837 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI817548B (zh) * 2022-06-09 2023-10-01 安研科技股份有限公司 感測系統及其控制方法

Also Published As

Publication number Publication date
CN113747577A (zh) 2021-12-03
CN113747577B (zh) 2024-05-14

Similar Documents

Publication Publication Date Title
US11399361B2 (en) V2X sidelink communication
WO2021239064A1 (fr) Procédé et appareil de communication
CN113225846B (zh) 一种通信方法及装置
US20210329431A1 (en) Feedback Channel Sending Method And Apparatus, And Feedback Channel Receiving Method And Apparatus
CN111510262B (zh) 接收参考信号的方法、发送参考信号的方法和装置
CN114982317B (zh) 一种寻呼方法及装置
CN113382379B (zh) 无线通信方法和通信装置
WO2020147131A1 (fr) Procédé de communication sans fil, dispositif terminal et dispositif de réseau
WO2020029890A1 (fr) Procédé de réception d'un signal de référence et appareil de communication
WO2020019235A1 (fr) Procédé de transmission de signal, dispositif de réseau et dispositif terminal
WO2020238428A1 (fr) Procédé et dispositif de communication
WO2022104542A1 (fr) Procédé de communication sans fil et appareil de communication
WO2022061774A1 (fr) Procédé et terminal de communication sans fil
KR20220038425A (ko) 전력 절감 신호 전송 방법, 기지국 및 단말 기기
WO2021081918A1 (fr) Procédé de communication sans fil, dispositif terminal et dispositif de réseau
WO2021228237A1 (fr) Procédé, appareil et système de communication
US20230337319A1 (en) Methods, devices, and systems for configuring sidelink drx
WO2022022340A1 (fr) Procédé et appareil de communication
WO2022033263A1 (fr) Procédé et appareil de transmission de données
WO2021213136A1 (fr) Procédé de communication et dispositif terminal
WO2020164455A1 (fr) Procédé de création de rapport d'informations de mesurage, et dispositif associé
WO2021036209A1 (fr) Procédé et appareil de communication et support de stockage lisible par ordinateur
WO2020088455A1 (fr) Procédé de communication et appareil de communication
WO2023050404A1 (fr) Procédé de configuration de ressources, et dispositif et support de stockage
WO2023241288A1 (fr) Procédé de transmission de signal de réveil et système de communication

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: 21813295

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: 21813295

Country of ref document: EP

Kind code of ref document: A1