WO2022077520A1 - Procédé et dispositif de communication - Google Patents

Procédé et dispositif de communication Download PDF

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Publication number
WO2022077520A1
WO2022077520A1 PCT/CN2020/121705 CN2020121705W WO2022077520A1 WO 2022077520 A1 WO2022077520 A1 WO 2022077520A1 CN 2020121705 W CN2020121705 W CN 2020121705W WO 2022077520 A1 WO2022077520 A1 WO 2022077520A1
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Prior art keywords
resource
resources
candidate
threshold
terminal device
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PCT/CN2020/121705
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English (en)
Chinese (zh)
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董蕾
苏宏家
郭文婷
何畅
卢磊
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华为技术有限公司
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Priority to PCT/CN2020/121705 priority Critical patent/WO2022077520A1/fr
Publication of WO2022077520A1 publication Critical patent/WO2022077520A1/fr

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

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a communication method and device.
  • V2X communication refers to the communication between vehicles and anything in the outside world, including vehicle-to-vehicle communication (V2V), vehicle-to-pedestrian communication (V2P), vehicle-to-infrastructure communication ( vehicle to infrastructure, V2I), vehicle to network communication (vehicle to network, V2N).
  • V2V vehicle-to-vehicle communication
  • V2P vehicle-to-pedestrian communication
  • V2I vehicle-to-infrastructure communication
  • V2N vehicle to network communication
  • V2N vehicle to network
  • the terminal equipment on the vehicle needs to allocate the resources of the sidelink.
  • the resource allocation of sidelink includes station allocation resource mode (mode-1) and user-selected resource mode (mode-2).
  • mode-1 station allocation resource mode
  • mode-2 user-selected resource mode
  • the resources of the sidelink do not depend on the base station to determine, but the terminal equipment selects the transmission resources for communication.
  • the terminal device needs to continuously monitor the time slots in the resource monitoring window, and then exclude resources that have been reserved by other terminal devices from the resource selection window according to the monitoring result.
  • the embodiments of the present application provide a communication method and device to solve the technical problem that the proportion of candidate resources reported to a higher layer cannot be satisfied due to the exclusion of too many resources in the resource exclusion process in the prior art.
  • a first aspect of the present application provides a communication method, which is applied to a terminal device.
  • the method includes: the terminal device determines a first resource corresponding to an unmonitored time slot in a resource monitoring window in a resource selection window; A threshold or a second threshold of a candidate resource set corresponding to the resource selection window, the terminal device determines a second resource in the candidate resource set, where the first threshold is used to characterize the first resource
  • the second threshold is used to represent the threshold of the number of remaining resources after excluding the first resource from the candidate resource set, and the second resource is used for transmitting sidelink data and/or Sidelink control information.
  • the terminal device determines the candidate resource set in the candidate resource set.
  • the second resource includes: the terminal device excludes the first resource from the candidate resource set corresponding to the resource selection window; if the number of the first resources is greater than the first threshold or in the candidate resource set The number of remaining resources is less than the second threshold, the terminal device determines a third resource from the first resources, and the difference between the number of the first resources and the number of the third resources is less than or equal to the a first threshold; the terminal device adds the third resource to the candidate resource set; the terminal device determines the second resource in the candidate resource set after adding the third resource.
  • the terminal device excludes all the candidate resources from the candidate resource set.
  • the first resource includes: the terminal device excludes the first resource from the candidate resource set corresponding to the resource selection window; if the number of the first resources is greater than the first threshold or the candidate resource set If the number of resources remaining in the set is less than the second threshold, the terminal device adds some or all of the first resources to the candidate resource set until the number of resources in the candidate resource set after adding some or all of the first resources is not less than the second threshold; the terminal device determines the second resource in the candidate resource set for adding part or all of the first resource.
  • the terminal device determines the candidate resource set in the candidate resource set.
  • the second resource includes: the terminal device excludes some or all of the first resources in the candidate resource set, until the number of excluded first resources is equal to the first threshold of the first resources, or, until the The number of resources remaining in the candidate resource set is equal to the second threshold; the terminal device determines the second resource in the candidate resource set after excluding some or all of the first resources.
  • the terminal device determines the candidate resource set in the candidate resource set.
  • the second resource includes: if the number of the first resources is greater than the first threshold, the terminal device excludes part or all of the first resources until the number of the first resources is less than or equal to the first threshold; the terminal device excludes the first resource from the candidate resource set corresponding to the resource selection window; the terminal device determines the first resource from the candidate resource set after excluding the first resource Second resource.
  • the terminal device determining the third resource from the first resource includes: the terminal device randomly determining the third resource from the first resource, or, The terminal device determines the third resource from the first resource according to the time domain sequence of the candidate resources.
  • the first threshold is determined by at least one of the following: the size of the initial candidate resource set, the ratio of the guaranteed candidate resources reported to the higher layer, and the first parameter.
  • the terminal device determining the first resource corresponding to the non-monitored time slot in the resource monitoring window in the resource selection window includes: the terminal device indicates according to the non-monitored time slot and the high-level parameter indication. Determine the first resource corresponding to the unmonitored time slot in the resource monitoring window in the resource selection window.
  • the method further includes: if the terminal device has made a periodic reservation for the fourth resource on the non-listening time slot in the resource monitoring window, the terminal device is in the The reservation period corresponding to the fourth resource is excluded from the first period set indicated by the high layer parameter.
  • the fourth resource is a resource corresponding to the preemption detection process.
  • the method further includes: the terminal device receives sidelink control information in a listening time slot within the resource monitoring window; the terminal device determines the sidelink control information The physical layer side link shared channel corresponding to the information; if the measured value of the reference signal received power of the physical layer side link shared channel corresponding to the side link control information is higher than the third threshold, the terminal equipment The resource corresponding to the sidelink control information is excluded from the candidate resource set corresponding to the resource selection window.
  • the method before the terminal device determines the second resource in the candidate resource set, the method further includes: if excluding the resource corresponding to the sidelink control information and/or The number of resources remaining in the candidate resource set after the first resource is less than the fourth threshold, the terminal device increases the third threshold; the terminal device uses the increased third threshold to re-select the resources corresponding to the resource selection window. The resources in the candidate resource set are excluded.
  • the method before the terminal device determines that the unmonitored time slot in the resource monitoring window is in the first resource corresponding to the resource selection window, the method further includes: the terminal device determines the resource selection Window and resource listener window.
  • the method before the terminal device determines that the unmonitored time slot in the resource monitoring window is in the first resource corresponding to the resource selection window, the method further includes: the terminal device determines that the resource selection window corresponds to the first resource. candidate resource set.
  • a second aspect of the present application provides a communication method, which is applied to a terminal device.
  • the method includes: if the terminal device has made a periodic reservation for a fourth resource on an unlistened time slot in the resource monitoring window, the terminal device is The reservation period corresponding to the fourth resource is excluded from the first period set indicated by the high-level parameter; according to the first period set that excludes the reservation period corresponding to the fourth resource, the terminal device is in the resource selection window corresponding to the first period set. Resource exclusion is performed in the candidate resource set; the terminal device selects a second resource from the candidate resource set after the resource exclusion, and the second source is used for transmitting sidelink data and/or sidelink control data.
  • the fourth resource is a resource corresponding to the preemption detection process.
  • a third aspect of the present application provides a communication method, which is applied to a terminal device.
  • the method includes: the terminal device performs resource exclusion from a candidate resource set in a resource selection window according to a fifth resource; selecting a second resource from the set; wherein the second resource is a transmission resource determined by the terminal device for the first transport block, and the fifth resource is determined by the terminal device for a transport block other than the first transport block H.
  • the method further includes: the terminal device excluding all candidate resources in the time slot where the fifth resource is located.
  • the method further includes: the terminal device determines the first resource corresponding to the unmonitored time slot in the resource monitoring window in the resource selection window; the terminal device determines the candidate corresponding to the resource selection window in the resource selection window.
  • the first resource is excluded from the resource set.
  • the method further includes:
  • the method further includes: if the sum of the number of the first resources and the number of the fifth resources is greater than the first threshold or the number of resources remaining in the candidate resource set is less than a second threshold, then the terminal The device determines a third resource from the first resource and the fifth resource, and the difference between the sum of the quantity of the first resource and the quantity of the fifth resource and the quantity of the third resource is less than or equal to the first threshold; the terminal device adds the third resource to the candidate resource set.
  • the method further includes: if the sum of the number of the first resources and the number of the fifth resources is greater than the first threshold or the number of remaining resources in the candidate resource set is less than the second threshold, the terminal device adds part or all of the first resource and the fifth resource to the candidate resource set until part of the first resource and the fifth resource is added Or the number of resources in the entire candidate resource set is not less than the second threshold.
  • the terminal device performs resource exclusion in the candidate resource set of the resource selection window according to the fifth resource, including: the terminal device excludes the first resource and the candidate resource set from the candidate resource set. Part or all of the fifth resource until the sum of the number of excluded first resources and the number of excluded fifth resources is equal to the first threshold, or until the remaining resources in the candidate resource set The number is equal to the second threshold.
  • the terminal device performs resource exclusion in the candidate resource set of the resource selection window according to the fifth resource, including: if the sum of the number of the first resources and the number of the fifth resources is greater than the first threshold, the terminal device excludes part or all of the first resource and the fifth resource until the sum of the number of the first resource and the number of the fifth resource is less than or is equal to the first threshold; the terminal device excludes the first resource and the fifth resource from the candidate resource set corresponding to the resource selection window.
  • the terminal device selecting the second resource from the resource-excluded candidate resource set includes: the terminal device is selecting the second resource from the candidate resource that has excluded the first resource and the fifth resource. The second resource is selected from the collection.
  • a fourth aspect of the present application provides a communication device, the device comprising:
  • a first determining module configured to determine the first resource corresponding to the unmonitored time slot in the resource monitoring window in the resource selection window;
  • a second determining module configured to determine a second resource in the candidate resource set according to the first threshold of the first resource or the second threshold of the candidate resource set corresponding to the resource selection window, wherein the The first threshold is used to represent the threshold of the quantity of the first resource, the second threshold is used to represent the threshold of the quantity of remaining resources after excluding the first resource from the candidate resource set, the second resource Used to transmit sidelink data and/or sidelink control information.
  • the second determining module is specifically configured to exclude the first resource from the candidate resource set corresponding to the resource selection window; if the number of the first resources is greater than the number of the first resources A threshold or the number of resources remaining in the candidate resource set is less than a second threshold, then a third resource is determined from the first resources, and the difference between the number of the first resources and the number of the third resources is less than or equal to the first threshold; the third resource is added to the candidate resource set; the second resource is determined in the candidate resource set after adding the third resource.
  • the second determining module is specifically configured to exclude the first resource from the candidate resource set corresponding to the resource selection window; if the number of the first resources is greater than the number of the first resources A threshold or the number of resources remaining in the candidate resource set is less than a second threshold, add part or all of the first resources to the candidate resource set until the candidate resource set after adding part or all of the first resources The number of the remaining resources in the first resource is not less than the second threshold; the second resource is determined in the candidate resource set for adding part or all of the first resource.
  • the second determining module is specifically configured to exclude some or all of the first resources in the candidate resource set until the number of excluded first resources is equal to the number of the first resources. the first threshold, or until the number of resources remaining in the candidate resource set is equal to the second threshold; the second resource is determined in the candidate resource set after excluding some or all of the first resources.
  • the second determining module is specifically configured to exclude some or all of the first resources until the number of the first resources is greater than the first threshold.
  • the quantity of the first resource is less than or equal to the first threshold; exclude the first resource from the candidate resource set corresponding to the resource selection window; determine the first resource from the candidate resource set after excluding the first resource the second resource.
  • the second determining module is specifically configured to randomly determine the third resource from the first resource, or select the first resource from the first resource according to the time domain order of the candidate resources. to determine the third resource.
  • the first threshold is determined by at least one of the following: the size of the initial candidate resource set, the ratio of the guaranteed candidate resources reported to the higher layer, and the first parameter.
  • the first determining module is specifically configured to determine, according to the non-monitoring time slot and the first period set indicated by the high-level parameter, that the non-monitoring time slot in the resource monitoring window is in the resource Select the first resource corresponding to the window.
  • the second determining module is further configured to indicate in the high-level parameter if the fourth resource has been periodically reserved on the non-listening time slot in the resource monitoring window.
  • the reservation period corresponding to the fourth resource is excluded from the first period set of .
  • the fourth resource is a resource corresponding to the preemption detection process.
  • the device further includes:
  • a receiving module configured to receive sidelink control information in the monitoring time slot in the resource monitoring window
  • the second determining module is further configured to determine the physical layer sidelink shared channel corresponding to the sidelink control information; if the physical layer sidelink shared channel corresponding to the sidelink control information is If the measured value of the received power of the reference signal is higher than the third threshold, the resource corresponding to the sidelink control information is excluded from the candidate resource set corresponding to the resource selection window.
  • the second determining module is further configured to exclude the resource corresponding to the sidelink control information and/or the number of remaining resources in the candidate resource set after excluding the resource corresponding to the sidelink control information and/or the first resource. If the threshold is four, the third threshold is increased; the resources in the candidate resource set corresponding to the resource selection window are re-excluded by using the increased third threshold.
  • the first determining module is further configured to determine the resource selection window and the resource monitoring window.
  • the first determining module is further configured to determine a candidate resource set corresponding to the resource selection window.
  • a fifth aspect of the present application provides a communication device, the device comprising:
  • an exclusion module configured to perform an over-periodic reservation on the fourth resource on the unlistened time slot in the resource monitoring window, then exclude the reservation period corresponding to the fourth resource in the first period set indicated by the high-level parameter;
  • a determination module configured to perform resource exclusion in the candidate resource set corresponding to the resource selection window according to the first cycle set that excludes the reservation cycle corresponding to the fourth resource; Two resources, the second source is used for transmitting sidelink data and/or sidelink control data.
  • the fourth resource is a resource corresponding to the preemption detection process.
  • a sixth aspect of the present application provides a communication device, the device comprising:
  • an exclusion module configured to exclude resources from the candidate resource set in the resource selection window according to the fifth resource
  • a determining module configured to select a second resource from the resource-excluded candidate resource set; wherein, the second resource is the transmission resource determined by the terminal device for the first transmission block, and the fifth resource is the terminal A resource determined by a transport block other than the first transport block by the device.
  • the exclusion module is further configured to exclude all candidate resources in the time slot where the fifth resource is located.
  • the determining module is further configured to determine the first resource corresponding to the unmonitored time slot in the resource monitoring window in the resource selection window;
  • the exclusion module is further configured to exclude the first resource from the candidate resource set corresponding to the resource selection window.
  • the exclusion module is further configured to, if the sum of the number of the first resources and the number of the fifth resources is greater than the first threshold or the remaining resources in the candidate resource set. If the number of resources is less than the second threshold, a third resource is determined from the first resource and the fifth resource, and the sum of the number of the first resource and the number of the fifth resource is the same as the third resource. The difference in the number of resources is less than or equal to the first threshold; the third resource is added to the candidate resource set.
  • the exclusion module is further configured to, if the sum of the number of the first resources and the number of the fifth resources is greater than the first threshold or the remaining resources in the candidate resource set. if the number of resources is less than the second threshold, add part or all of the first resource and the fifth resource to the candidate resource set until part or all of the first resource and the fifth resource are added The number of resources in the latter candidate resource set is not less than the second threshold.
  • the exclusion module is further configured to exclude some or all of the first resource and the fifth resource from the candidate resource set, until the excluded first resource is The sum of the number and the number of excluded fifth resources is equal to the first threshold, or until the number of resources remaining in the candidate resource set is equal to the second threshold.
  • the exclusion module is further configured to exclude the first resource and the fifth resource if the sum of the number of the first resource and the number of the fifth resource is greater than the first threshold. Part or all of the fifth resources, until the sum of the number of the first resources and the number of the fifth resources is less than or equal to the first threshold; in the candidate resource set corresponding to the resource selection window The first resource and the fifth resource are excluded.
  • the determining module is specifically configured to select the second resource in a candidate resource set from which the first resource and the fifth resource are excluded.
  • a seventh aspect of the present application provides a communication device, including: a memory and a processor;
  • the memory for storing executable instructions of the processor
  • the processor is configured to perform the method of any one of the first to third aspects.
  • An eighth aspect of the present application provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause the computer to execute the method of any one of the first to third aspects.
  • the terminal device determines the first resource corresponding to the unmonitored time slot in the resource monitoring window in the resource selection window; according to the first threshold of the first resource or the candidate resource set corresponding to the resource selection window The second threshold value, the terminal device determines the second resource in the candidate resource set, wherein the first threshold value is used to characterize the threshold of the quantity of the first resource, and the second threshold value is used to characterize the exclusion of the first resource from the candidate resource set After the threshold of the number of remaining resources, the second resource is used for transmitting sidelink data and/or sidelink control information.
  • the present application can avoid that the reserved candidate resources cannot meet the ratio condition of the candidate resources reported to the higher layer due to excluding too many resources in the resource selection process.
  • FIG. 1 is a schematic diagram of a candidate resource provided by an embodiment of the present application
  • FIGS. 2a-2c are system architecture diagrams of V2X communication according to an embodiment of the present application.
  • Fig. 3 is a kind of schematic flow chart of existing resource exclusion
  • FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of another communication method provided by an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of still another communication method provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a resource exclusion provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of another communication method provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another resource exclusion provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • a and/or B in the embodiment of the present application is only an association relationship describing the associated objects, which means that there may be three kinds of relationships.
  • a and/or B means: A alone exists, A and B exist at the same time, and B exists alone.
  • first and second are used to distinguish different objects, but are not used to describe the specific order of the objects, nor are they used to limit the specific quantity.
  • first target object and the second target object are used to distinguish different target objects, not to describe a specific order of the target objects, nor to limit the specific number of the target objects.
  • Candidate Resources Available resources included in the resource selection window.
  • the resource selection window is [[n+T 1 , n+T 2 ]
  • the number of subchannels included in the frequency domain resources of the sidelink resource pool is N subCH
  • the corresponding set of subchannels is Then a candidate resource R x,y can be defined as a time slot belonging to the sidelink resource pool in the resource selection window [n+T 1 , n+T 2 ] in the time domain
  • the total number of candidate resources on each slot is N subCH - L subCH +1.
  • Any set of consecutive sub-channel sets that meet the above conditions and whose length is equal to L subCH is regarded as a candidate resource R x,y , the number of all candidate resources is M total , and the set including all M total candidate resources is defined as S A
  • L subCH is the physical layer sidelink shared channel (Physical Sidelink Shared Channel, PSSCH) and/or the physical layer sidelink control channel (Physical Sidelink Control Channel, PSCCH) corresponding to the data to be transmitted.
  • PSSCH Physical Sidelink Shared Channel
  • PSCCH Physical Sidelink Control Channel
  • FIG. 1 is a schematic diagram of a candidate resource provided by an embodiment of the present application.
  • the maximum number of sub-channels N subCH in the frequency domain resource pool is 8, and the corresponding set of sub-channels is
  • T 0 is configured by the high-level parameter (sl_SensingWindow), configured from Table 1.
  • the ⁇ SL in Table 1 is the sub-carrier spacing (SCS) corresponding to the sidelink bandwidth part (BWP), and the relationship between the ⁇ SL and the subcarrier spacing is shown in Table 2.
  • SCS sub-carrier spacing
  • BWP sidelink bandwidth part
  • the resource selection window can be understood as the range of resources that the terminal device can utilize when transmitting sidelink information.
  • the resource selection window may be set as the time slot corresponding to [n+T 1 , n+T 2 ] after the resource selection is triggered, wherein T 1 and T 2 may be specifically set according to actual conditions.
  • Non-monitoring time slot a time slot that the terminal device does not monitor, specifically, a time slot that it has performed transmission or a time slot that is not monitored due to discontinuous reception (Discontinuous Reception, DRX) and other reasons.
  • DRX discontinuous Reception
  • High-level parameter used to indicate the resource reservation interval sent by the terminal device (resource reservation interval) in,
  • the corresponding logical cycle is P' rsvp_TX (that is, the cycle that only includes time slots in the sidelink resource pool).
  • the field "Resource reservation period" in the sidelink control information (SCI) is used to indicate the resource reservation interval (resource reservation interval) received by the terminal device in,
  • the corresponding logical cycle ie, the cycle in the case of only including time slots in the sidelink resource pool
  • P' rsvp_RX is P' rsvp_RX .
  • P rsvp is or P' rsvp is P' rsvp_TX or P' rsvp_RX .
  • the format of the time slot configuration is repeated in units of 20ms, and the period of one time slot configuration is Pms, which is determined by tdd-UL-DL-ConfigurationCommon
  • the parameter dl-UL-TransmissionPeriodicity in higher layer signaling is provided.
  • N represents the number of time slots available for sidelink transmission included in 20ms under a certain UL-DL time slot configuration.
  • FIGS 2a-2c are system architecture diagrams of a V2X communication provided by an embodiment of the application.
  • V2X communication refers to communication between a vehicle and anything in the outside world, including vehicle-to-vehicle communication.
  • vehicle, V2V vehicle to pedestrian
  • V2I vehicle to infrastructure
  • V2N vehicle to network
  • the resource allocation of sidelink includes station allocation resource mode (mode-1) and user-selected resource mode (mode-2).
  • mode-1 station allocation resource mode
  • mode-2 user-selected resource mode
  • the resource allocation mode of the base station is mainly used in V2X communication under the situation of network coverage.
  • the base station uniformly allocates resources according to the buffer state report (BSR) report of the terminal equipment.
  • BSR buffer state report
  • the transmission resources of the terminal device do not depend on the base station, and the terminal device selects the transmission resources for communication. This mode is not limited by network coverage. In the absence of network coverage, the terminal device can also use this mode to communicate .
  • the above-mentioned resources include initial resources and/or retransmission resources.
  • the terminal device In the resource selection process in the user-selected resource mode, the terminal device needs to continuously monitor the time slots in the resource monitoring window, and then exclude resources that have been reserved by other terminal devices from the resource selection window according to the monitoring result.
  • FIG. 3 is a schematic flowchart of an existing resource exclusion. As shown in Figure 3, including steps S101-S103:
  • the terminal device determines a resource selection window, and forms all candidate resources in the resource selection window into a candidate resource set.
  • the terminal device determines a resource listening window.
  • S103 The terminal device performs resource exclusion on the resources in the candidate resource set according to the unmonitored time slot.
  • the terminal device determines that it is not listening to the time slot If the candidate resource Rx ,y in the resource selection window satisfies the condition of formula (2) in the time domain, all the candidate resources Rx ,y in the time slot are all excluded.
  • T scal is the interval corresponding to the resource selection window length T 2 , in ms. If slot n belongs to the sidelink resource pool, otherwise is the first time slot belonging to the sidelink resource pool after time slot n.
  • the terminal device since the terminal device does not receive the sidelink control information in the non-monitoring time slot, the specific indication of the reserved resources in the sidelink control information cannot be obtained, and can only be based on time domain conditions. Exclusion is performed without considering frequency conditions, that is, all sub-channels included in the frequency domain resources of the resource pool need to be excluded, which will result in too many excluded resources.
  • the sidelink control information since the sidelink control information is not received, it can only be completely excluded according to all the periods configured by the resource pool, and the high-level parameter (sl-ResourceReservePeriodList) can support up to 16 periods, and the value range of each period can be from Choose from 0ms, 1ms ⁇ 99ms, 100ms, 200ms, ... 1000ms. Therefore, when the high-level parameter (sl-ResourceReservePeriodList) supports multiple periods and the value range of each period is small, it will also cause more resources to be excluded. According to the existing protocol, there is an upper limit for the exclusion of candidate resources. When too many candidate resources are excluded, so that the ratio of the set of candidate resources reported to the upper layer to the set of initial candidate resources is less than the threshold value, the candidate resources reported to the higher layer cannot be satisfied. ratio condition.
  • the embodiments of the present application provide a communication method and device to solve the technical problem that the proportion of candidate resources reported to a higher layer cannot be satisfied due to the exclusion of too many resources in the resource exclusion process in the prior art.
  • the candidate resources to be excluded exceed a certain amount, a part of the candidate resources to be excluded are restored, so that the reserved candidate resources meet the ratio condition of the candidate resources reported to the higher layer.
  • the present application can be applied to an NR-V2X communication system, which can be applied not only to scenarios with network coverage, but also to communication scenarios without network coverage.
  • the resource allocation method may be a resource mode allocated by a base station, or a resource mode may be independently selected by a user, which is not limited in this embodiment of the present application.
  • the terminal device can interact with the terminal device, and the terminal device can also interact with the network device.
  • both parties in the wireless communication are user communication devices, and accordingly, side link air interface transmission can be used.
  • the corresponding air interface (UTRAN-to-UE, UU) transmission can be used.
  • the network device may be a traditional macro base station (evolved node B, eNB) in a wireless communication system, a micro base station eNB in a heterogeneous network (Heterogeneous Network, HetNet) scenario, and a baseband processing in a distributed base station scenario.
  • the unit (Base Band Unit, BBU) and the remote radio unit RRU (Remote Radio Unit, RRU) can be the baseband pool (BBU pool) and RRU in the cloud radio access network (Cloud Radio Access Netowrk, CRAN) scenario.
  • BBU Base Band Unit
  • RRU Remote Radio Unit
  • CRAN Cloud Radio Access Netowrk
  • the terminal device may be a communication device held by a user, which may include, but is not limited to, a mobile phone, a tablet computer, an e-reader, a remote control, a personal computer (PC), a notebook computer, and a personal digital assistant (PDA). , vehicle equipment, wearable devices, smart watches, smart bracelets and other devices.
  • the terminal device may also be an in-vehicle terminal, an in-vehicle communication module or other embedded communication modules.
  • FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • the terminal device may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, Antenna 1, Antenna 2, Mobile Communication Module 150, Wireless Communication Module 160, Audio Module 170, Speaker 170A, Receiver 170B, Microphone 170C, Headphone Interface 170D, Sensor Module 180, Key 190, Motor 191, Indicator 192, Camera 193, Display screen 194, and subscriber identification module (subscriber identification module, SIM) card interface 195 and so on.
  • SIM subscriber identification module
  • the sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, and ambient light. Sensor 180L, bone conduction sensor 180M, etc.
  • the processor 110 may include one or more processing units, for example, the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (NPU) Wait.
  • application processor application processor, AP
  • modem processor graphics processor
  • graphics processor graphics processor
  • image signal processor image signal processor
  • ISP image signal processor
  • controller memory
  • video codec digital signal processor
  • DSP digital signal processor
  • NPU neural-network processing unit
  • the controller can be the nerve center and command module of the terminal device.
  • the controller can generate an operation control signal according to the instruction operation code and timing signal, and complete the control of fetching and executing instructions.
  • a memory may also be provided in the processor 110 for storing instructions and data.
  • the charging management module 140 is used to receive charging input from the charger.
  • the power management module 141 is used for connecting the battery 142 , the charging management module 140 and the processor 110 .
  • the wireless communication function of the terminal device may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modulation and demodulation processor, the baseband processor, and the like.
  • Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals.
  • Each antenna in a terminal device can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization.
  • the mobile communication module 150 may provide a wireless communication solution including 2G/3G/4G/5G, etc. applied on the terminal device.
  • the wireless communication module 160 receives the electromagnetic wave via the antenna 2, frequency modulates and filters the electromagnetic wave signal, and sends the processed signal to the processor 110.
  • the wireless communication module 160 can also receive the signal to be sent from the processor 110 , perform frequency modulation on it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2 .
  • the terminal device realizes the display function through the GPU, the display screen 194, and the application processor.
  • the GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor.
  • the GPU is used to perform mathematical and geometric calculations for graphics rendering.
  • Processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.
  • Display screen 194 is used to display images, videos, and the like.
  • Display screen 194 includes a display panel.
  • the terminal device can realize the shooting function through ISP, camera 193, video codec, GPU, display screen 194 and application processor.
  • the ISP is used to process the data fed back by the camera 193 .
  • Camera 193 is used to capture still images or video.
  • the external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the terminal device.
  • the external memory card communicates with the processor 110 through the external memory interface 120 to realize the data storage function. For example to save files like music, video etc in external memory card.
  • Internal memory 121 may be used to store computer executable program code, which includes instructions.
  • the processor 110 executes various functional applications and data processing of the terminal device by executing the instructions stored in the internal memory 121 .
  • the internal memory 121 may include a storage program area and a storage data area.
  • the terminal device can implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, and an application processor. Such as music playback, recording, etc.
  • the audio module 170 is used for converting digital audio information into analog audio signal output, and also for converting analog audio input into digital audio signal. Audio module 170 may also be used to encode and decode audio signals.
  • Speaker 170A also referred to as a "speaker” is used to convert audio electrical signals into sound signals.
  • the receiver 170B also referred to as “earpiece”, is used to convert audio electrical signals into sound signals.
  • the microphone 170C also called “microphone” or “microphone”, is used to convert sound signals into electrical signals.
  • the earphone jack 170D is used to connect wired earphones.
  • the pressure sensor 180A is used to sense pressure signals, and can convert the pressure signals into electrical signals.
  • the gyro sensor 180B can be used to determine the motion attitude of the terminal device.
  • the air pressure sensor 180C is used to measure air pressure.
  • the magnetic sensor 180D includes a Hall sensor.
  • the terminal device can use the magnetic sensor 180D to detect the opening and closing of the flip holster.
  • the acceleration sensor 180E can detect the magnitude of the acceleration of the terminal device in various directions (generally three axes).
  • Distance sensor 180F for measuring distance.
  • Proximity light sensor 180G may include, for example, light emitting diodes (LEDs) and light detectors, such as photodiodes.
  • the ambient light sensor 180L is used to sense ambient light brightness.
  • the fingerprint sensor 180H is used to collect fingerprints.
  • the temperature sensor 180J is used to detect the temperature.
  • Touch sensor 180K also called “touch panel”.
  • the touch sensor 180K may be disposed on the display screen 194 , and the touch sensor 180K and the display screen 194 form a touch screen, also called a “touch screen”.
  • the touch sensor 180K is used to detect a touch operation on or near it.
  • the bone conduction sensor 180M can acquire vibration signals.
  • the keys 190 include a power-on key, a volume key, and the like.
  • Motor 191 can generate vibrating cues.
  • the motor 191 can be used for vibrating alerts for incoming calls, and can also be used for touch vibration feedback.
  • the indicator 192 can be an indicator light, which can be used to indicate the charging state, the change of the power, and can also be used to indicate a message, a missed call, a notification, and the like.
  • the SIM card interface 195 is used to connect a SIM card.
  • the structure illustrated in this application does not constitute a specific limitation on the terminal device.
  • the terminal device may include more or fewer components than shown, or some components may be combined, or some components may be split, or a different arrangement of components.
  • the illustrated components may be implemented in hardware, software, or a combination of software and hardware.
  • the apparatus for executing the method on the side of the terminal device may be the terminal device, or may be a device in the terminal device.
  • the device in the terminal device may be a chip system, a circuit, or a module, etc., which is not limited in this application.
  • the sending end may be a device that executes the method on the side of the terminal device.
  • FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • the execution subject of the embodiments of the present application is a terminal device, which may also be referred to as a sending user equipment (user equipment, UE), which involves a specific process of how the terminal device selects resources.
  • UE user equipment
  • the terminal device determines the first resource corresponding to the unmonitored time slot in the resource monitoring window in the resource selection window.
  • the terminal device needs to listen to the time slots belonging to the sidelink resource pool within the resource listening window. After the terminal device triggers the process of determining resources in a certain time slot, there are still time slots that the terminal device does not monitor in the resource listening window. Specifically, it may be a time slot in which the terminal device itself has transmitted or because of discontinuous reception. (Discontinuous Reception, DRX) and other reasons for not listening to the time slot.
  • the terminal device will determine the candidate resources to be excluded according to the unmonitored time slots in the monitoring window. Wherein, according to the unmonitored time slot in the resource monitoring window, the terminal device may determine the first resource to be excluded from the candidate resource set corresponding to the resource selection window.
  • the first resource is first described below.
  • the quantity of the first resource may be one or multiple, and this embodiment of the present application does not limit the quantity of the first resource.
  • the first resource may be the unmonitored timeslot period in the resource selection window resources on the corresponding time slot.
  • the first resource may be the non-monitored time slot and then the resource selection window after the non-monitored time slot. The first resource on the slot that belongs to the sidelink resource pool.
  • the terminal device may determine the first resource corresponding to the non-monitored time slot in the resource monitoring window in the resource selection window according to the non-monitored time slot and the period indicated by the high-level parameter.
  • the candidate resource can be determined as the first resource.
  • T scal is the interval corresponding to the resource selection window length T 2 , in ms. If slot n belongs to the sidelink resource pool, otherwise is the first time slot belonging to the sidelink resource pool after time slot n.
  • the above non-monitored time slot may have a corresponding first resource in the resource selection window, or may not have a corresponding first resource in the resource selection window, which is not limited in this embodiment of the present application.
  • the terminal device determines the second resource in the candidate resource set, and the second resource is used for transmitting sidelink data and/or or sidelink control information.
  • the terminal device determines the candidate resource set SA according to the method of determining the candidate resource set mentioned in the embodiment of the present application, and the candidate resource set SA that has not undergone the resource exclusion process may be regarded as the candidate resource set SA The initial set of candidate resources. Subsequently, after the terminal device determines that the unmonitored time slot in the resource monitoring window is the first resource corresponding to the resource selection window, the first resource can be excluded from the candidate resource set corresponding to the resource selection window, and the candidate resource after the resource exclusion is completed. A second resource is determined from the resource set.
  • the candidate resource set before resource exclusion is the candidate resource set including the above fourteen time slots.
  • the candidate resources on the eight time slots may be excluded from the candidate resource set, so that only the remaining six remain in the candidate resource set.
  • the candidate resources on the slot are selected, so that the second resource is determined from the candidate resources on the remaining six time slots.
  • the terminal device excludes the first resource from the candidate resource set corresponding to the resource selection window. If the number of the first resources is greater than the first threshold or the number of remaining resources in the candidate resource set is less than the second threshold, the terminal device determines the third resource from the first resources. Wherein, the difference between the quantity of the first resource and the quantity of the third resource is less than or equal to the first threshold. Subsequently, the terminal device adds the third resource to the candidate resource set. Finally, the terminal device determines the second resource in the candidate resource set after adding the third resource.
  • the terminal device may randomly determine the third resource from the first resource. In another optional implementation manner, the terminal device may determine the third resource from the first resource according to the time domain sequence of the candidate resources.
  • the terminal device excludes the first resource from the candidate resource set corresponding to the resource selection window. If the number of first resources is greater than the first threshold or the number of remaining resources in the candidate resource set is less than the second threshold, add some or all of the first resources to the candidate resource set, until the candidate resource after adding some or all of the first resources The number of resources in the resource set is not less than the second threshold. Subsequently, the terminal device determines the second resource in the candidate resource set to which part or all of the first resource is added.
  • adding part or all of the first resources to the candidate resource set can be understood as adding the first resources that have been excluded from the candidate resource set to the candidate resource set one by one, until the number of remaining resources in the candidate resource set does not When the value is less than the second threshold, stop adding the first resource to the candidate resource set.
  • the terminal device may randomly determine some or all of the resources from the first resources. In another optional implementation manner, the terminal device may determine some or all of the resources from the first resources according to the time domain sequence of the candidate resources.
  • the terminal device excludes some or all of the first resources in the candidate resource set until the number of excluded first resources is equal to the first threshold of the first resources, or until the remaining resources in the candidate resource set The number is equal to the second threshold. Subsequently, the terminal device determines the second resource in the candidate resource set after excluding part or all of the first resource.
  • the terminal device excludes some or all of the first resources until the number of the first resources is less than or equal to the first threshold. Subsequently, the terminal device excludes the first resource from the candidate resource set corresponding to the resource selection window. Finally, the terminal device determines the second resource in the candidate resource set after excluding the first resource.
  • the first threshold and the second threshold will be described below.
  • the first threshold is used to represent the threshold of the number of first resources. It should be understood that the first threshold may be the maximum number of first resources allowed to be excluded, and the number of first resources cannot exceed the first threshold.
  • the second threshold is used to represent the threshold of the number of remaining resources after excluding the first resource from the candidate resource set. It should be understood that the second threshold is the minimum number of remaining resources in the candidate resource set after excluding the first resource.
  • the candidate resource set is in The number of remaining resources after excluding the first resource cannot be less than the second threshold.
  • the sum of the first threshold and the second threshold may be the total number of all candidate resources included in the initial candidate resource set.
  • the first threshold and/or the second threshold may be pre-configured in the terminal device, or may be delivered to the terminal device by the network device through configuration signaling.
  • the configuration signaling may be system message block (System Information Block SIB), radio resource control (Radio Resource Control RRC) signaling, or physical layer control information, which is not limited in this embodiment of the present application.
  • the first threshold and/or the second threshold may be determined by at least one of the following: the size of the initial candidate resource set, the ratio of the guaranteed candidate resources reported to the upper layer, and the first parameter, where the first parameter It can be pre-configured on the terminal device, or can be delivered to the terminal device by the network device through configuration signaling.
  • the configuration signaling may be system message block (System Information Block SIB), radio resource control (Radio Resource Control RRC) signaling, or physical layer control information, which is not limited in this embodiment of the present application.
  • M total is the size of the initial candidate resource set, that is, the number of all candidate resources
  • X is reported to the high-level The ratio of candidate resources to be guaranteed
  • Y ⁇ 1
  • Y is the first parameter.
  • the embodiments of the present application do not limit the values of X and Y.
  • X may be 0.2, 0.3, 0.35, 0.4, 0.5, etc.
  • Y may be 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, etc.
  • the value of the first threshold can be determined.
  • the value is 3.5.
  • X is the ratio of the guaranteed candidate resources reported to the upper layer.
  • the embodiments of the present application do not limit the values of X and Y, for example, X may be 0.2, 0.3, 0.35, and Y may be 0.7, 0.8, 0.9, and the like.
  • the value of the first threshold can be determined. is 2.8.
  • the number of the first resources exceeds 2.8, it is determined that too many resources are excluded when the first resource is excluded from the candidate resource set, and the ratio condition of the candidate resources reported to the higher layer cannot be satisfied.
  • the first threshold may also be (1-Y ⁇ X) ⁇ M total , where M total is the size of the initial candidate resource set, that is, the number of all candidate resources, and X is the number of resources reported to The ratio of candidate resources to be guaranteed by the high layer, Y ⁇ 1, and Y is the first parameter.
  • M total is the size of the initial candidate resource set, that is, the number of all candidate resources
  • X is the number of resources reported to The ratio of candidate resources to be guaranteed by the high layer
  • Y ⁇ 1 is the first parameter.
  • the embodiments of the present application do not limit the values of X and Y.
  • X may be 0.2, 0.3, 0.35, 0.4, 0.5, etc.
  • Y may be 5, 4, 3, 2, 2.5, 1.5, 1.75, etc. .
  • the value of the first threshold can be determined. is 5.6.
  • the number of the first resources exceeds 5.6, it is determined that too many resources are excluded when the first resource is excluded from the candidate resource set, and the ratio condition of the candidate resources reported to the upper layer cannot be satisfied.
  • the embodiments of the present application do not limit the values of X and Y.
  • X may be 0.2, 0.3, 0.35, 0.4, 0.5, etc.
  • Y may be 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, etc.
  • the terminal device excludes the first resource, when the number of remaining resources in the candidate resource set is less than 10.5, it is determined that the first resource is excluded from the candidate resource set when too many resources are excluded, and the ratio of the candidate resources reported to the higher layer cannot be satisfied. condition.
  • X may be 0.2, 0.3, 0.35, 0.5, and Y may be 0.7, 0.8, 0.9, and the like.
  • the value of the second threshold can be determined to be 11.2.
  • the terminal device excludes the first resource, when the number of remaining resources in the candidate resource set is less than 11.2, it is determined that the first resource is excluded from the candidate resource set when too many resources are excluded, and the ratio of the candidate resources reported to the higher layer cannot be satisfied. condition.
  • the second threshold may also be Y ⁇ X ⁇ M total , where M total is the size of the initial candidate resource set, that is, the number of all candidate resources, and X is the guarantee required for reporting to the higher layer
  • M total is the size of the initial candidate resource set, that is, the number of all candidate resources
  • X is the guarantee required for reporting to the higher layer
  • the ratio of candidate resources, Y ⁇ 1, Y is the first parameter.
  • the embodiments of the present application do not limit the values of X and Y.
  • X may be 0.2, 0.3, 0.35, 0.4, 0.5, etc.
  • Y may be 5, 4, 3, 2, 2.5, 1.5, 1.75, etc. .
  • the terminal device excludes the first resource, when the number of remaining resources in the candidate resource set is less than 8.4, it is determined that too many resources are excluded when the first resource is excluded from the candidate resource set, and the ratio condition of the candidate resources reported to the upper layer cannot be satisfied. .
  • the terminal device may select the second resource from the candidate resource set after the resource exclusion is completed.
  • the terminal device may report the remaining candidate resource set to the upper layer after completing the resource exclusion, and the higher layer then selects the second resource from the remaining candidate resource set.
  • the terminal device before selecting the second resource, if the terminal device makes a periodic reservation for the fourth resource on the non-listening time slot in the resource monitoring window, the terminal device can also The reservation period corresponding to the fourth resource is excluded from the first period set indicated by the parameter.
  • the fourth resource is a resource corresponding to the preemption detection process.
  • the terminal device determines the first resource corresponding to the unmonitored time slot in the resource monitoring window in the resource selection window; Two thresholds, the terminal device determines the second resource in the candidate resource set, wherein the first threshold is used to represent the threshold of the quantity of the first resource, and the second threshold is used to represent the remaining resources after excluding the first resource from the candidate resource set Threshold for the number of resources, the second resource is used for transmitting sidelink data and/or sidelink control information.
  • the present application can avoid that the reserved candidate resources cannot meet the ratio condition of the candidate resources reported to the higher layer due to excluding too many resources in the resource selection process.
  • FIG. 6 is a schematic flowchart of another communication method provided by an embodiment of the present application. As shown in Figure 6, the method includes:
  • the terminal device determines a resource selection window, and determines a candidate resource set corresponding to all candidate resources belonging to the sidelink resource pool in the resource selection window.
  • the terminal device determines a resource listening window.
  • the terminal device determines the first resource corresponding to the unmonitored time slot in the resource monitoring window in the resource selection window.
  • the terminal device needs to listen to the time slots belonging to the sidelink resource pool within the resource listening window. After the terminal device triggers the process of determining resources in a certain time slot, there are still time slots that the terminal device does not monitor in the resource listening window. Specifically, it may be a time slot in which the terminal device itself has transmitted or because of discontinuous reception. (Discontinuous Reception, DRX) and other reasons for not listening to the time slot.
  • the terminal device will determine the candidate resources to be excluded according to the unmonitored time slots in the monitoring window. Wherein, according to the unmonitored time slot in the resource monitoring window, the terminal device may determine the first resource to be excluded from the candidate resource set corresponding to the resource selection window.
  • the first resource is first described below.
  • the quantity of the first resource may be one or multiple, and this embodiment of the present application does not limit the quantity of the first resource.
  • the first resource may be the unmonitored timeslot period in the resource selection window resources on the corresponding time slot.
  • the first resource may be the non-monitored time slot and then the resource selection window after the non-monitored time slot. The first resource on the slot that belongs to the sidelink resource pool.
  • the terminal device may determine the first resource corresponding to the non-monitored time slot in the resource monitoring window in the resource selection window according to the non-monitored time slot and the period indicated by the high-level parameter.
  • the candidate resource can be determined as the first resource.
  • T scal is the interval corresponding to the resource selection window length T 2 , in ms. If slot n belongs to the sidelink resource pool, otherwise is the first time slot belonging to the sidelink resource pool after time slot n.
  • the above non-monitored time slot may have a corresponding first resource in the resource selection window, or may not have a corresponding first resource in the resource selection window, which is not limited in this embodiment of the present application.
  • the terminal device performs resource exclusion in the candidate resource set, where the first threshold is used to represent the threshold of the number of the first resources , the second threshold is used to represent the threshold of the number of remaining resources after excluding the first resource from the candidate resource set, and the second resource is used to transmit sidelink data and/or sidelink control information.
  • the terminal device determines the candidate resource set SA according to the method of determining the candidate resource set mentioned in the embodiment of the present application, and the candidate resource set SA that has not undergone the resource exclusion process may be regarded as the candidate resource set SA The initial set of candidate resources. Subsequently, after the terminal device determines that the unmonitored time slot in the resource monitoring window is the first resource corresponding to the resource selection window, the first resource can be excluded from the candidate resource set corresponding to the resource selection window, and the candidate resource after the resource exclusion is completed. A second resource is determined from the resource set.
  • the candidate resource set before resource exclusion is the candidate resource set including the above fourteen time slots.
  • the candidate resources on the eight time slots may be excluded from the candidate resource set, so that only the remaining six remain in the candidate resource set.
  • the candidate resources on the slot are selected, so that the second resource is determined from the candidate resources on the remaining six time slots.
  • the terminal device excludes the first resource from the candidate resource set corresponding to the resource selection window. If the number of the first resources is greater than the first threshold or the number of remaining resources in the candidate resource set is less than the second threshold, the terminal device determines the third resource from the first resources. Wherein, the difference between the quantity of the first resource and the quantity of the third resource is less than or equal to the first threshold. Subsequently, the terminal device adds the third resource to the candidate resource set. Finally, the terminal device determines the second resource in the candidate resource set after adding the third resource.
  • the terminal device may randomly determine the third resource from the first resource. In another optional implementation manner, the terminal device may determine the third resource from the first resource according to the time domain sequence of the candidate resources.
  • the terminal device excludes the first resource from the candidate resource set corresponding to the resource selection window. If the number of first resources is greater than the first threshold or the number of remaining resources in the candidate resource set is less than the second threshold, add some or all of the first resources to the candidate resource set, until the candidate resource after adding some or all of the first resources The number of resources in the resource set is not less than the second threshold. Subsequently, the terminal device determines the second resource in the candidate resource set to which part or all of the first resource is added.
  • adding part or all of the first resources to the candidate resource set can be understood as adding the first resources that have been excluded from the candidate resource set to the candidate resource set one by one, until the number of remaining resources in the candidate resource set does not When the value is less than the second threshold, stop adding the first resource to the candidate resource set.
  • the terminal device may randomly determine some or all of the resources from the first resources. In another optional implementation manner, the terminal device may determine some or all of the resources from the first resources according to the time domain sequence of the candidate resources.
  • the terminal device excludes some or all of the first resources in the candidate resource set until the number of excluded first resources is equal to the first threshold of the first resources, or until the remaining resources in the candidate resource set The number is equal to the second threshold. Subsequently, the terminal device determines the second resource in the candidate resource set after excluding part or all of the first resource.
  • the terminal device excludes some or all of the first resources until the number of the first resources is less than or equal to the first threshold. Subsequently, the terminal device excludes the first resource from the candidate resource set corresponding to the resource selection window. Finally, the terminal device determines the second resource in the candidate resource set after excluding the first resource.
  • the first threshold and the second threshold will be described below.
  • the first threshold is used to represent the threshold of the number of first resources. It should be understood that the first threshold may be the maximum number of first resources allowed to be excluded, and the number of first resources cannot exceed the first threshold.
  • the second threshold is used to represent the threshold of the number of remaining resources after excluding the first resource from the candidate resource set. It should be understood that the second threshold is the minimum number of remaining resources in the candidate resource set after excluding the first resource.
  • the candidate resource set is in The number of remaining resources after excluding the first resource cannot be less than the second threshold.
  • the sum of the first threshold and the second threshold may be the total number of all candidate resources included in the initial candidate resource set.
  • the first threshold and/or the second threshold may be pre-configured in the terminal device, or may be delivered to the terminal device by the network device through configuration signaling.
  • the configuration signaling may be system message block (System Information Block SIB), radio resource control (Radio Resource Control RRC) signaling, or physical layer control information, which is not limited in this embodiment of the present application.
  • the first threshold and/or the second threshold may be determined by at least one of the following: the size of the initial candidate resource set, the ratio of the guaranteed candidate resources reported to the upper layer, and the first parameter, where the first parameter It can be pre-configured on the terminal device, or can be delivered to the terminal device by the network device through configuration signaling.
  • the configuration signaling may be system message block (System Information Block SIB), radio resource control (Radio Resource Control RRC) signaling, or physical layer control information, which is not limited in this embodiment of the present application.
  • M total is the size of the initial candidate resource set, that is, the number of all candidate resources
  • X is reported to the high-level The ratio of candidate resources to be guaranteed
  • Y ⁇ 1
  • Y is the first parameter.
  • the embodiments of the present application do not limit the values of X and Y.
  • X may be 0.2, 0.3, 0.35, 0.4, 0.5, etc.
  • Y may be 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, etc.
  • the value of the first threshold can be determined.
  • the value is 3.5.
  • X is the ratio of the guaranteed candidate resources reported to the upper layer.
  • the embodiments of the present application do not limit the values of X and Y, for example, X may be 0.2, 0.3, 0.35, and Y may be 0.7, 0.8, 0.9, and the like.
  • the value of the first threshold can be determined. is 2.8.
  • the number of the first resources exceeds 2.8, it is determined that too many resources are excluded when the first resource is excluded from the candidate resource set, and the ratio condition of the candidate resources reported to the higher layer cannot be satisfied.
  • the first threshold may also be (1-Y ⁇ X) ⁇ M total , where M total is the size of the initial candidate resource set, that is, the number of all candidate resources, and X is the number of resources reported to The ratio of candidate resources to be guaranteed by the high layer, Y ⁇ 1, and Y is the first parameter.
  • M total is the size of the initial candidate resource set, that is, the number of all candidate resources
  • X is the number of resources reported to The ratio of candidate resources to be guaranteed by the high layer
  • Y ⁇ 1 is the first parameter.
  • the embodiments of the present application do not limit the values of X and Y.
  • X may be 0.2, 0.3, 0.35, 0.4, 0.5, etc.
  • Y may be 5, 4, 3, 2, 2.5, 1.5, 1.75, etc. .
  • the value of the first threshold can be determined. is 5.6.
  • the number of the first resources exceeds 5.6, it is determined that too many resources are excluded when the first resource is excluded from the candidate resource set, and the ratio condition of the candidate resources reported to the upper layer cannot be satisfied.
  • the embodiments of the present application do not limit the values of X and Y.
  • X may be 0.2, 0.3, 0.35, 0.4, 0.5, etc.
  • Y may be 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, etc.
  • the terminal device excludes the first resource, when the number of remaining resources in the candidate resource set is less than 10.5, it is determined that the first resource is excluded from the candidate resource set when too many resources are excluded, and the ratio of the candidate resources reported to the higher layer cannot be satisfied. condition.
  • X may be 0.2, 0.3, 0.35, 0.5, and Y may be 0.7, 0.8, 0.9, and the like.
  • the value of the second threshold can be determined to be 11.2.
  • the terminal device excludes the first resource, when the number of remaining resources in the candidate resource set is less than 11.2, it is determined that the first resource is excluded from the candidate resource set when too many resources are excluded, and the ratio of the candidate resources reported to the higher layer cannot be satisfied. condition.
  • the second threshold may also be Y ⁇ X ⁇ M total , where M total is the size of the initial candidate resource set, that is, the number of all candidate resources, and X is the guarantee required for reporting to the higher layer
  • M total is the size of the initial candidate resource set, that is, the number of all candidate resources
  • X is the guarantee required for reporting to the higher layer
  • the ratio of candidate resources, Y ⁇ 1, Y is the first parameter.
  • the embodiments of the present application do not limit the values of X and Y.
  • X may be 0.2, 0.3, 0.35, 0.4, 0.5, etc.
  • Y may be 5, 4, 3, 2, 2.5, 1.5, 1.75, etc. .
  • the terminal device excludes the first resource, when the number of remaining resources in the candidate resource set is less than 8.4, it is determined that too many resources are excluded when the first resource is excluded from the candidate resource set, and the ratio condition of the candidate resources reported to the upper layer cannot be satisfied. .
  • the terminal device determines the sidelink control information received in the listening time slot within the resource monitoring window.
  • the terminal device determines the physical layer sidelink shared channel corresponding to the sidelink control information.
  • the terminal device after receiving the sidelink control information (SCI) in the monitoring time slot in the resource monitoring window, the terminal device can decode from the Resource reservation period field and the Priority field indicated in the SCI according to the Resource reservation period field and the Priority field. out P rsvp_RX and prio RX .
  • SCI sidelink control information
  • P rsvp_RX and prio RX are the resource reservation period and priority of the physical layer shared sidelink (physical sidelink shared channel, PSSCH) corresponding to the SCI.
  • PSSCH physical sidelink shared channel
  • the terminal device excludes the sidelink from the candidate resource set corresponding to the resource selection window The resource corresponding to the route control information.
  • the third threshold may be a threshold Th prioTX,prioRX of reference signal received power (Reference Signal Received Power, RSRP).
  • RSRP Reference Signal Received Power
  • the third threshold is a function of the priority corresponding to the data indicated in the received SCI and the priority corresponding to the data to be sent of the terminal device.
  • the third threshold may be preconfigured.
  • the terminal device may perform RSRP measurement on the PSSCH corresponding to the SCI, or perform RSRP measurement on the PSCCH corresponding to the PSSCH, when the measured value of RSRP is higher than the third threshold, and it is expected that
  • the time-frequency resources that is, the resources corresponding to the SCI determined by the SCI received in the time slot and the candidate resources If they coincide, the candidate resource can be excluded.
  • T scal is the interval corresponding to the resource selection window length T 2 , in ms.
  • slot n belongs to the sidelink resource pool, otherwise is the first time slot belonging to the sidelink resource pool after time slot n.
  • the terminal device determines whether to increase the third threshold
  • the terminal device uses the increased third threshold to perform step S303; if not, the terminal device performs step S309.
  • the fourth threshold may be set according to the size of the initial candidate resource set, which is not limited in this embodiment of the present application.
  • the fourth threshold may be set as M total ⁇ X, where X represents the ratio of the remaining resources in the candidate resource set after resource exclusion to all the candidate resources, for example, X may be 20%, 35%, 50% .
  • the fourth threshold is M total 50%
  • the resources corresponding to the sidelink control information and/or the remaining resources in the candidate resource set after excluding the first resource are less than M total 50%
  • it is necessary to The third threshold is increased, so that after the resource exclusion is performed again, the number of resources remaining in the candidate resource set after the resource exclusion is increased to satisfy the fourth threshold or greater.
  • the third threshold may be Threshold RSRP threshold Th prioTX, prioRX increased 3dB.
  • the first threshold may also be (1-Y ⁇ X) ⁇ M total , where M total is the size of the initial candidate resource set, that is, the number of all candidate resources, X is the ratio of the candidate resources reported to the higher level to be guaranteed, and Y ⁇ 1, Y is the first parameter.
  • M total is the size of the initial candidate resource set, that is, the number of all candidate resources
  • X is the ratio of the candidate resources reported to the higher level to be guaranteed
  • Y ⁇ 1 is the first parameter.
  • the embodiments of the present application do not limit the values of X and Y.
  • X may be 0.2, 0.3, 0.35, 0.4, 0.5, etc.
  • Y may be 5, 4, 3, 2, 2.5, 1.5, 1.75, etc. .
  • the first threshold is (1-Y ⁇ X) ⁇ M total
  • the value of the first threshold can be determined. is 5.6.
  • the number of the first resources exceeds 5.6, it is determined that too many resources are excluded when the first resource is excluded from the candidate resource set, and the ratio condition of the candidate resources reported to the upper layer cannot be satisfied.
  • the terminal device selects a second resource from the candidate resource set after resource exclusion, where the second resource is used for transmitting sidelink data and/or sidelink control information.
  • NR-V2X also supports the preemption of reserved resources, that is, when a terminal device selects resources, it listens to resources reserved by other terminal devices, and the priority corresponding to the reserved resources is lower than that of the terminal device. the current transmission priority, the terminal device preempts the reservation.
  • NR-V2X also supports the preemption detection function, that is, for each reserved resource, it is necessary to detect whether the resource is preempted by other terminal devices before the time corresponding to the resource. Specifically, Preemption can be determined by detecting whether reserved resources are excluded. Therefore, in addition to data transmission triggering the resource exclusion process, preemption detection for a reserved resource also triggers the resource exclusion process.
  • the resource corresponding to the current preemption detection is reserved periodically, that is, the resource corresponding to the cycle before the resource is reserved for the current resource. Then, regardless of whether other UEs preempt the detection resources currently to be preempted in other time slots, according to the existing protocol process, the resources to be detected will be directly excluded according to the period configured by the high-level parameter (sl-ResourceReservePeriodList). This not only leads to inaccurate preemption detection results, but also introduces more frequent reselection processes, increases system complexity, and introduces greater processing and transmission delays.
  • FIG. 7 is a schematic flowchart of still another communication method provided by an embodiment of the present application. As shown in FIG. 7 , the method includes:
  • the terminal device If the terminal device has made a periodic reservation for the fourth resource on the unlistened time slot in the resource monitoring window, the terminal device excludes the reservation period corresponding to the fourth resource from the first period set indicated by the high-level parameter.
  • the reservation period of the group of resources needs to be excluded from the first period set indicated by the high-level parameter, so as to ensure that the group of resources will not be excluded.
  • the fourth resource is a resource corresponding to the preemption detection process.
  • the high-level parameter can be sl-ResourceReservePeriodList.
  • FIG. 8 is a schematic diagram of a resource exclusion provided by an embodiment of the present application.
  • the resource R2 to be detected is located in the time slot m, and the preemption detection of the resource R2 is triggered in the time slot m-T3, and the resource R2 passes through the resource R1.
  • Periodic reservation is performed, and the period is T, that is, the terminal device performs data transmission on the resource R1 in the time slot mT, and reserves the resource R2.
  • the period corresponding to the resource R2 needs to be excluded from the first period set indicated by the high layer parameter.
  • the terminal device According to the first period set of the reservation period corresponding to the fourth resource that has been excluded, the terminal device performs resource exclusion in the candidate resource set corresponding to the resource selection window.
  • the reservation period corresponding to the fourth resource has been excluded from the first period set, so that the fourth resource will not be excluded from the candidate resource set.
  • the terminal device selects a second resource from the resource-excluded candidate resource set, and the second source is used for transmitting sidelink data and/or sidelink control data.
  • S403 can be understood with reference to S205 shown in FIG. 5 , and repeated content will not be repeated here.
  • FIG. 7 may be executed independently, or may be combined with the embodiment shown in FIG. 5 or FIG. 6 , which is not limited in this application.
  • the communication method provided by the embodiment of the present application can avoid the resources to be preempted from being directly excluded, thereby increasing the accuracy of the preemption detection result, avoiding the introduction of more frequent reselection processes, thereby avoiding the increase of system complexity and greater processing and transmission delays.
  • FIG. 9 is a schematic flowchart of another communication method provided by an embodiment of the present application. As shown in FIG. 9 , the method includes:
  • the terminal device performs resource exclusion in the candidate resource set in the resource selection window according to the fifth resource.
  • the second resource is a transmission resource determined by the terminal device for the first transmission block
  • the fifth resource is a resource determined by the terminal device for transmission blocks other than the first transmission block.
  • the fifth resource may be provided by higher layers.
  • the terminal device may exclude all candidate resources on the time slot where the fifth resource is located.
  • This embodiment of the present application does not limit how the terminal device performs resource exclusion in the candidate resource set of the resource selection window according to the fifth resource.
  • the terminal device can determine whether the time slot corresponding to the fifth resource is excluded. Excluded, the candidate resource on the time slot corresponding to the resource is excluded.
  • FIG. 10 is a schematic diagram of another resource exclusion provided by an embodiment of the present application.
  • the terminal device receives a resource selection request from a higher layer in time slot n, and the terminal device receives a resource selection request from a high-level After monitoring and resource exclusion in the resource selection window [n+T 1 , n+T 2 ], the candidate resources of R1, R2 and R3 are finally selected in time slot n, then R1, R2 and R3 can be the above-mentioned Five resources.
  • the terminal device receives the resource selection request from the upper layer again in the time slot n+1, and in the resource monitoring window Monitoring is performed, and resource exclusion is performed in the resource selection window [n+1+T 1 , n+1+T 2 ]. Since the terminal equipment has already selected the R1, R2 and R3 candidate resources, when selecting the resources in the time slot n+1, in addition to the prior art excluding according to the reservation of the SCI, it is also necessary to select the three selected resources from the candidate resource set. Resources R1, R2 and R3 are excluded. After completing the resource exclusion, the terminal device may report the excluded candidate resource set to the upper layer for resource selection, for example, select R4, R5 and R6.
  • the fifth resource may or may not exist in the present application, which is not limited in this embodiment of the present application.
  • the terminal device selects a third resource from the resource-excluded candidate resource set.
  • S502 can be understood with reference to S205 shown in FIG. 5 , and repeated content will not be repeated here.
  • FIG. 9 may be executed independently, or may be combined with the embodiment shown in FIG. 5 to FIG. 8 , which is not limited in this application.
  • the terminal device determines from the first resource and the fifth resource. For the third resource, the difference between the sum of the quantity of the first resource and the quantity of the fifth resource and the quantity of the third resource is less than or equal to the first threshold; the terminal device adds the third resource to the candidate resource set.
  • the terminal device will use the part or part of the first resource and the fifth resource or All are added to the candidate resource set until the number of resources in the candidate resource set after adding part or all of the first resource and the fifth resource is not less than the second threshold.
  • the terminal device excludes part or all of the first resource and the fifth resource in the candidate resource set until the sum of the number of the excluded first resources and the number of the excluded fifth resources is equal to the first threshold, or , until the number of resources remaining in the candidate resource set is equal to the second threshold.
  • the terminal device excludes some or all of the resources of the first resource and the fifth resource until the number of the first resource and the fifth resource The sum of the numbers is less than or equal to the first threshold; the terminal device excludes the first resource and the fifth resource from the candidate resource set corresponding to the resource selection window.
  • some or all of the first resources and the fifth resources involved in the embodiments of this application may include all of the first resources, all of the fifth resources, some of the first resources, and the fifth Part of the resource, part of the first resource and all of the fifth resource, all of the first resource and part of the fifth resource, part of the first resource and part of the fifth resource, the first resource All resources of , and all resources of Fifth Resource.
  • the resource selection process it is considered that when multiple resource selection requests from a higher layer are received, each time resource selection is performed, the resource previously selected by itself needs to be excluded, thereby reducing the probability of resource collision. , which improves the throughput of the system.
  • FIG. 11 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • the communication apparatus may be implemented by software, hardware, or a combination of the two, so as to execute the communication methods in the above-mentioned embodiments.
  • the communication apparatus 600 includes: a first processing module 601 , a second processing module 602 and a receiving module 603 .
  • a first determining module 601, configured to determine the first resource corresponding to the unmonitored time slot in the resource monitoring window in the resource selection window;
  • the second determination module 602 is configured to determine the second resource in the candidate resource set according to the first threshold of the first resource or the second threshold of the candidate resource set corresponding to the resource selection window, wherein the first threshold is used to represent the first threshold A threshold of the number of resources, the second threshold is used to represent the threshold of the number of remaining resources after excluding the first resource from the candidate resource set, and the second resource is used to transmit sidelink data and/or sidelink control information .
  • the second determination module 602 is specifically configured to exclude the first resource from the candidate resource set corresponding to the resource selection window; if the number of the first resources is greater than the first threshold or the remaining resources in the candidate resource set If the number of resources is less than the second threshold, the third resource is determined from the first resources, and the difference between the number of the first resources and the number of the third resources is less than or equal to the first threshold; the third resource is added to the candidate resource set ; Determine the second resource in the candidate resource set after adding the third resource.
  • the second determination module 602 is specifically configured to exclude the first resource from the candidate resource set corresponding to the resource selection window; if the number of the first resources is greater than the first threshold or the remaining resources in the candidate resource set If the number of resources is less than the second threshold, add some or all of the first resources to the candidate resource set, until the number of remaining resources in the candidate resource set after adding the part or all of the first resources is not less than the second threshold; The second resource is determined from the candidate resource set of part or all of the first resource.
  • the second determining module 602 is specifically configured to exclude some or all of the first resources in the candidate resource set until the number of excluded first resources is equal to the first threshold of the first resources, or , until the number of remaining resources in the candidate resource set is equal to the second threshold; the second resource is determined in the candidate resource set after excluding some or all of the first resources.
  • the second determining module 602 is specifically configured to exclude part or all of the first resources if the number of the first resources is greater than the first threshold, until the number of the first resources is less than or equal to a first threshold; exclude the first resource in the candidate resource set corresponding to the resource selection window; determine the second resource in the candidate resource set after excluding the first resource.
  • the second determining module 602 is specifically configured to randomly determine the third resource from the first resource, or determine the third resource from the first resource according to the time domain sequence of the candidate resources.
  • the first threshold is determined by at least one of the following: the size of the initial candidate resource set, the ratio of the guaranteed candidate resources reported to the upper layer, and the first parameter.
  • the first determination module 601 is specifically configured to determine, according to the unlistened time slot and the first period set indicated by the high-level parameter, the unlistened time slot in the resource monitoring window is the first time slot corresponding to the resource selection window. a resource.
  • the second determining module 602 is further configured to, if the fourth resource has been periodically reserved on the non-listening time slot in the resource monitoring window, set the first periodic set indicated by the high-level parameter in the resource monitoring window. The reservation period corresponding to the fourth resource is excluded.
  • the fourth resource is a resource corresponding to the preemption detection process.
  • the device further includes:
  • a receiving module 603, configured to receive sidelink control information in the monitoring time slot in the resource monitoring window;
  • the second determining module 602 is further configured to determine the physical layer sidelink shared channel corresponding to the sidelink control information; if the received power of the reference signal of the physical layer sidelink shared channel corresponding to the sidelink control information is If the measured value is higher than the third threshold, the resource corresponding to the sidelink control information is excluded from the candidate resource set corresponding to the resource selection window.
  • the second determining module 602 is further configured to: if the resource corresponding to the sidelink control information and/or the remaining resource quantity in the candidate resource set after excluding the resource corresponding to the sidelink control information and/or the first resource is less than the fourth threshold, Then, the third threshold is increased; the resources in the candidate resource set corresponding to the resource selection window are re-excluded by using the increased third threshold.
  • the first determining module 601 is further configured to determine a resource selection window and a resource monitoring window.
  • the first determining module 601 is further configured to determine a candidate resource set corresponding to the resource selection window.
  • the communication device provided in the embodiment of the present application can perform the actions of the communication method in the above-mentioned embodiment, and the implementation principle and technical effect thereof are similar, and are not repeated here.
  • Embodiments of the present application further provide yet another communication device.
  • the communication apparatus may be implemented by software, hardware, or a combination of the two, so as to execute the communication methods in the above-mentioned embodiments.
  • the communication device includes:
  • an exclusion module configured to perform an over-periodic reservation on the fourth resource on the unlistened time slot in the resource monitoring window, then exclude the reservation period corresponding to the fourth resource in the first period set indicated by the high-level parameter;
  • the determining module is configured to perform resource exclusion in the candidate resource set corresponding to the resource selection window according to the first cycle set corresponding to the reservation cycle corresponding to the fourth resource has been excluded; select the second resource from the candidate resource set after the resource exclusion, the The second source is used to transmit sidelink data and/or sidelink control data.
  • the fourth resource is a resource corresponding to the preemption detection process.
  • the communication device provided in the embodiment of the present application can perform the actions of the communication method in the above-mentioned embodiment, and the implementation principle and technical effect thereof are similar, and are not repeated here.
  • the embodiment of the present application further provides another communication device.
  • the communication apparatus may be implemented by software, hardware, or a combination of the two, so as to execute the communication methods in the above-mentioned embodiments.
  • the communication device includes:
  • an exclusion module configured to exclude resources from the candidate resource set in the resource selection window according to the fifth resource
  • a determination module configured to select a second resource from the candidate resource set after resource exclusion; wherein, the second resource is the transmission resource determined by the terminal device for the first transmission block, and the fifth resource is the terminal device except the first transmission block.
  • the exclusion module is further configured to exclude all candidate resources in the time slot where the fifth resource is located.
  • the determining module is further configured to determine the first resource corresponding to the unmonitored time slot in the resource monitoring window in the resource selection window;
  • the exclusion module is further configured to exclude the first resource from the candidate resource set corresponding to the resource selection window.
  • the exclusion module is further configured to, if the sum of the number of the first resources and the number of the fifth resources is greater than the first threshold or the number of remaining resources in the candidate resource set is less than the second threshold, remove the A third resource is determined from the first resource and the fifth resource, and the difference between the sum of the quantity of the first resource and the quantity of the fifth resource and the quantity of the third resource is less than or equal to the first threshold; the third resource is added to the candidate in the resource collection.
  • the exclusion module is further configured to remove the first resource if the sum of the number of the first resource and the number of the fifth resource is greater than the first threshold or the number of remaining resources in the candidate resource set is less than the second threshold. Part or all of a resource and a fifth resource are added to the candidate resource set until the number of resources in the candidate resource set after adding part or all of the first resource and the fifth resource is not less than the second threshold.
  • the exclusion module is further configured to exclude part or all of the first resource and the fifth resource in the candidate resource set, until the number of the excluded first resources and the number of the excluded fifth resources. The sum of the numbers is equal to the first threshold, or until the number of resources remaining in the candidate resource set is equal to the second threshold.
  • the exclusion module is further configured to exclude part or all of the first resource and the fifth resource if the sum of the number of the first resource and the number of the fifth resource is greater than the first threshold, until The sum of the number of the first resource and the number of the fifth resource is less than or equal to the first threshold; the first resource and the fifth resource are excluded from the candidate resource set corresponding to the resource selection window.
  • the determining module is specifically configured to select the second resource from the candidate resource set from which the first resource and the fifth resource have been excluded.
  • the communication device provided in the embodiment of the present application can perform the actions of the communication method in the above-mentioned embodiment, and the implementation principle and technical effect thereof are similar, and are not repeated here.
  • FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the electronic device may include: a processor 71 (eg, a CPU), a memory 72, a receiver 73 and a transmitter 74; the receiver 73 and the transmitter 74 are coupled to the processor 71, and the processor 71 controls the receiver 73 , and the processor 71 controls the sending operation of the transmitter 74 .
  • the memory 72 may include a high-speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, and various information may be stored in the memory 72 for completing various processing functions and implementing the methods of the embodiments of the present application. step.
  • the electronic device involved in the embodiment of the present application may further include: a power supply 75 , a communication bus 76 and a communication port 77 .
  • the receiver 73 and the transmitter 74 may be integrated in the transceiver of the electronic device, or may be independent transceiver antennas on the electronic device.
  • a communication bus 76 is used to enable communication connections between the elements.
  • the above-mentioned communication port 77 is used to realize connection and communication between the electronic device and other peripheral devices.
  • the above-mentioned memory 72 is used to store computer-executable program codes, and the program codes include information; when the processor 71 executes the information, the information causes the processor 71 to perform the processing actions in the above method embodiments, so that the transmitter 74 performs the sending action in the foregoing method embodiment, so that the receiver 73 performs the receiving action in the foregoing method embodiment, the implementation principle and technical effect thereof are similar, and are not repeated here.
  • An embodiment of the present application further provides a chip, including a processor and an interface.
  • the interface is used to input and output data or instructions processed by the processor.
  • the processor is configured to execute the methods provided in the above method embodiments.
  • the chip can be applied to the above-mentioned terminal equipment.
  • the present invention also provides a computer-readable storage medium
  • the computer-readable storage medium may include: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory) ), a magnetic disk or an optical disk and other media that can store program codes.
  • the computer-readable storage medium stores program information, and the program information is used for the above communication method.
  • the embodiment of the present application further provides a program, which is used to execute the communication method provided by the above method embodiment when the program is executed by the processor.
  • Embodiments of the present application further provide a program product, such as a computer-readable storage medium, where instructions are stored in the program product, and when the program product runs on a computer, the computer executes the communication method provided by the above method embodiments.
  • a program product such as a computer-readable storage medium
  • a computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • Computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center via wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) means to transmit to another website site, computer, server or data center.
  • the computer-readable storage medium may be any available medium that a computer can access, or a data storage device such as a server, a data center, or the like that includes one or more available media integrated.
  • Useful media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

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Abstract

La présente invention concerne un procédé et un dispositif de communication. Le procédé comprend les étapes suivantes : un dispositif terminal détermine des premières ressources dans une fenêtre de sélection de ressources correspondant à une fente non surveillée dans une fenêtre de surveillance de ressources ; le dispositif terminal détermine, d'après un premier seuil des premières ressources ou un second seuil d'un ensemble de ressources candidates correspondant à la fenêtre de sélection de ressources, des secondes ressources dans l'ensemble de ressources candidates, le premier seuil servant à exprimer un seuil pour le nombre de premières ressources, le second seuil servant à exprimer un seuil pour le nombre de ressources restantes dans l'ensemble de ressources candidates lorsque les premières ressources sont exclues, et les secondes ressources servant à transmettre des données de liaison latérale et/ou des informations de commande de liaison latérale. Par rapport à l'état de la technique, la présente demande permet d'éviter, dans un processus de sélection de ressources, l'exclusion d'une quantité excessive de ressources aboutissant à des ressources candidates réservées qui ne répondent pas à un critère concernant la proportion de ressources candidates soumises à un niveau élevé.
PCT/CN2020/121705 2020-10-16 2020-10-16 Procédé et dispositif de communication WO2022077520A1 (fr)

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