WO2021226760A1 - 部分监听方法、装置、终端设备及存储介质 - Google Patents

部分监听方法、装置、终端设备及存储介质 Download PDF

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Publication number
WO2021226760A1
WO2021226760A1 PCT/CN2020/089468 CN2020089468W WO2021226760A1 WO 2021226760 A1 WO2021226760 A1 WO 2021226760A1 CN 2020089468 W CN2020089468 W CN 2020089468W WO 2021226760 A1 WO2021226760 A1 WO 2021226760A1
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Prior art keywords
configuration information
period
time unit
reservation
direct transmission
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PCT/CN2020/089468
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English (en)
French (fr)
Inventor
赵群
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to EP20935899.3A priority Critical patent/EP4149160A4/en
Priority to US17/998,125 priority patent/US20230164637A1/en
Priority to PCT/CN2020/089468 priority patent/WO2021226760A1/zh
Priority to CN202080000951.2A priority patent/CN111727624B/zh
Publication of WO2021226760A1 publication Critical patent/WO2021226760A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26Resource reservation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/02Selection of wireless resources by user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/40Resource management for direct mode communication, e.g. D2D or sidelink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/51Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/53Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a partial monitoring method, device, terminal device, and storage medium.
  • the terminal equipment In the direct link communication (Side Link, SL), the terminal equipment is supported to adopt resource reservation and channel sensing (sensing)-based resource selection methods.
  • Each terminal device periodically reserves the transmission resources for the next cycle in the current cycle, monitors the reservation information sent by other terminal devices on the channel, and predicts the future time based on the reservation information and the corresponding channel measurement results. Interference on frequency resources.
  • a part of the resource reservation period can be specified through a configuration or pre-configuration method. If the terminal device needs to select a time-frequency resource on time unit A, the terminal device needs to ensure that it listens on at least one time unit set.
  • the set of time units includes all time units B that meet the following conditions: the direct transmission on the time unit B may use the resource reservation period to reserve the time-frequency resources on the time unit A.
  • the possible value of the resource reservation period also includes any value from 1 ms to 99 ms.
  • it also provides aperiodic resource reservation.
  • the embodiments of the present disclosure provide a partial monitoring method, device, terminal device, and storage medium.
  • the terminal device selects the candidate time-frequency resource according to the first continuous transmission. Whether the time unit and itself perform periodic resource reservation, determine the time unit that needs to be partially monitored.
  • the technical solution is as follows:
  • a partial listening method which is applied to a terminal device, and the method includes:
  • the first time unit is the time unit where the candidate time-frequency resource for resource selection for the first continuous transmission is located, and the first information includes: periodic resource reservation for the first continuous transmission or The reservation period Ts is 0; or, the first continuous transmission performs aperiodic resource reservation or the reservation period Ts is not 0.
  • a partial listening device which is applied to a terminal device, and the device includes: a determining module;
  • the determining module is configured to determine the monitoring condition according to the first time unit and the first information
  • the determining module is configured to determine the second time unit that needs to be monitored according to the monitoring condition
  • the first time unit is the time unit where the candidate time-frequency resource for resource selection for the first continuous transmission is located, and the first information includes: periodic resource reservation for the first continuous transmission or The reservation period Ts is 0; or, the first continuous transmission performs aperiodic resource reservation or the reservation period Ts is not 0.
  • a terminal device comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the partial listening method as described in the foregoing aspect.
  • a computer-readable storage medium is provided, and executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to implement the aforementioned aspects. Part of the monitoring method.
  • the terminal device When the terminal device performs resource selection for the first continuous transmission, it determines the first continuous transmission that needs to be partially monitored according to the time unit of the candidate time-frequency resource for the resource selection of the first continuous transmission and whether it performs periodic resource reservation.
  • the two time units make it possible to determine the second time unit in compliance with the current reservation scenario regardless of whether the first continuous transmission performs periodic resource reservation, thereby reducing unnecessary resource monitoring, thereby saving power consumption of the terminal device.
  • FIG. 1 is a schematic diagram of a transmission mode of direct communication provided by an exemplary embodiment of the present disclosure
  • Fig. 2 is a schematic diagram of partial monitoring provided by an exemplary embodiment of the present disclosure
  • Fig. 3 is a block diagram of a communication system supporting direct communication provided by an exemplary embodiment of the present disclosure
  • Fig. 4 is a flowchart of a partial monitoring method provided by an exemplary embodiment of the present disclosure
  • Fig. 5 is a schematic diagram of partial monitoring provided by an exemplary embodiment of the present disclosure.
  • Fig. 6 is a flowchart of a partial monitoring method provided by an exemplary embodiment of the present disclosure
  • Fig. 7 is a flowchart of a partial monitoring method provided by an exemplary embodiment of the present disclosure.
  • Fig. 8 is a flowchart of a partial monitoring method provided by an exemplary embodiment of the present disclosure.
  • Fig. 9 is a block diagram of a part of a monitoring device provided by an exemplary embodiment of the present disclosure.
  • Fig. 10 is a structural block diagram of a terminal device provided by an exemplary embodiment of the present disclosure.
  • V2X Vehicle to Everything
  • V2X communication includes vehicle to vehicle (V2V) communication, vehicle to roadside infrastructure (V2I) communication, and vehicle to pedestrian (Vehicle to People, V2P) communication.
  • V2X applications will improve driving safety, reduce congestion and vehicle energy consumption, and improve traffic efficiency.
  • S Side Link
  • SL is a device-to-device communication method with high spectrum efficiency and low transmission delay.
  • Two transmission modes of direct communication are defined in 3GPP: Mode A and Mode B.
  • Mode A the resources used by the terminal equipment during transmission are allocated by the network equipment through the downlink, and the terminal equipment performs on the side link according to the resources allocated by the network equipment.
  • Data transmission network equipment can allocate resources for a single transmission to a terminal device, and can also allocate resources for a semi-static transmission to the terminal.
  • the terminal device selects a resource from the resource pool for data transmission. Specifically, the terminal device may select transmission resources from the resource pool by means of listening, or select transmission resources from the resource pool by means of random selection.
  • the embodiment of the present disclosure relates to the above-mentioned mode B.
  • the terminal equipment adopts resource reservation and channel sensing based resource selection methods.
  • Each terminal device periodically reserves transmission resources for the next cycle during the current transmission. Compared with the time-frequency resources used for current transmission, the reserved time-frequency resources are separated by a specified period in time and occupy the same size and position in frequency.
  • Each terminal device needs to constantly monitor the reservation information sent by other terminal devices on the channel, and predict future interference on time-frequency resources based on the reservation information and the corresponding channel measurement results. The terminal equipment will try to select time and frequency resources with less interference for data transmission.
  • LTE V2X Since terminal equipment continuously monitors channels will consume a lot of power, the concept of "partial sensing" is introduced in LTE V2X (mainly to help handheld terminal equipment) to achieve power saving effects. Since the period value of resource reservation in LTE V2X belongs to a limited set (for example ⁇ 100,200,...,1000 ⁇ ms), for the time-frequency resource on a given time unit, the time-frequency can be reserved The time position where the resource transmission occurs also belongs to a limited set (for example, the time unit ⁇ 100,200,300,...,1000 ⁇ ms before the time unit).
  • the terminal device can only monitor the direct transmission in the previous part of the time unit (for example, the time unit ⁇ 100,200,...,1000 ⁇ ms before K time units). All the time-frequency resource reservations at this time position are not missed.
  • the time unit A is the time unit selected when the terminal device performs resource selection.
  • the terminal equipment needs to control the time unit A-100, time unit A-200, time unit A-300, time unit A-400, time unit A-500, time unit A-600, time unit A-700, time unit A- 800, time unit A-900 and time unit A-1000 for monitoring.
  • the protocol allows terminal equipment to select resources only on a limited time set, and ensures to monitor all time positions that may be reserved for time-frequency resources on this time set. For other time positions, the terminal device can enter the energy-saving state.
  • the minimum number of time units in a limited time set for resource selection by terminal equipment is restricted to prevent the time set from being too small to increase the probability of conflict, or there is no suitable time-frequency resource. Choose the situation.
  • 5G V2X unlike LTE V2X, it also supports aperiodic resource reservation. Each current transmission can reserve at most one or two (determined by configuration or pre-configuration) time-frequency resources of the same size at any position in the future W (logical) time units, and W is a positive integer. 5G V2X also supports periodic resource reservation, which can be enabled and disabled through configuration or pre-configuration.
  • Fig. 3 shows a block diagram of a communication system supporting direct communication provided by an exemplary embodiment of the present application.
  • the communication system may be a schematic diagram of a non-roaming 5G system architecture (Non-roaming 5G system architecture), and the system architecture may be applied to a vehicle to everything (V2X) service using D2D technology.
  • Non-roaming 5G system architecture Non-roaming 5G system architecture
  • V2X vehicle to everything
  • the system architecture includes a data network (Data Network, DN), and the data network is provided with a V2X application server (Application Server) required for a V2X service.
  • the system architecture also includes the 5G core network.
  • the network functions of the 5G core network include: Unified Data Management (UDM), Policy Control Function (PCF), Network Exposure Function (NEF), Application Function (AF), Unified Data Repository (UDR), Access and Mobility Management Function (AMF), Session Management Function (SMF), and user interface Function (User Plane Function, UPF).
  • the system architecture also includes: a radio access network (New Generation-Radio Access Network, NG-RAN) and four user equipments (ie, user equipment 1 to user equipment 4) shown by way of example, where each user equipment is V2X application (Application) is installed.
  • NG-RAN New Generation-Radio Access Network
  • user equipment 1 to user equipment 4 shown by way of example, where each user equipment is V2X application (Application) is installed.
  • V2X application Application
  • One or more network devices such as base stations (gNB) are provided in the wireless access network.
  • the user equipment performs uplink transmission to the access network equipment.
  • the data network and the user plane function in the 5G core network are connected through the N6 reference point (Reference Point), the V2X application server is connected with the V2X application in the user equipment through the V1 reference point; the wireless access network is connected with the 5G core network
  • the AMF function and the UPF function in the connection the wireless access network is connected to the user equipment 1 and the user equipment 5 through the Uu reference point; the sideline transmission between multiple user equipments is carried out through the PC5 reference point, and the multiple V2X applications pass through V5 reference point connection.
  • the above-mentioned reference point may also be referred to as an "interface".
  • Fig. 4 shows a flowchart of a partial monitoring method provided by an exemplary embodiment of the present disclosure.
  • the method can be applied to a terminal device.
  • the method includes the following steps:
  • Step 410 Determine a monitoring condition according to the first time unit and the first information.
  • the first time unit is the time unit where the candidate time-frequency resource for resource selection for the first continuous transmission is located.
  • n is the time for resource selection for direct transmission.
  • the terminal device starts from time n + T 1, to the end of the time T n + 2 resource selection window, select a number not less than a first time unit.
  • T proc is the maximum time allowed for the terminal device to select resources and prepare data
  • T 2 the delay requirement range of the direct transmission service.
  • the first information is resource reservation information corresponding to the first continuous transmission.
  • the first information includes: the aperiodic resource reservation for the first continuous transmission or the reservation period Ts is 0, or the periodic resource reservation for the first continuous transmission or the reservation period Ts is not 0.
  • periodic resource reservation refers to that the terminal device reserves time-frequency resources in the next period when performing direct transmission in the current period.
  • the reserved period is Ts, and when the terminal device performs the first continuous transmission at time t, the transmission resource at time t+Ts is reserved.
  • the direct data sent in the current cycle and the direct data sent in the next cycle are generally different.
  • the value of the reservation period Ts of the periodic resource reservation can generally only take a limited set of values, for example, it may include: 0, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 milliseconds.
  • aperiodic resource reservation refers to that the terminal device reserves time-frequency resources at any position within a unit of a period of time in the future when the terminal device performs direct transmission in the current cycle. For example, when the terminal device performs the first continuous transmission at time t, it reserves the transmission resource at time t+a, and a can be any time from 1 to 31.
  • the terminal device can transmit the same direct data as the direct transmission in the current period in the time-frequency resources reserved for aperiodic resources.
  • the monitoring condition is a judgment method of partial monitoring adopted by the terminal device to ensure the first continuous transmission, and the monitoring condition can also be understood as a "monitoring mode".
  • the terminal device determines the monitoring condition according to the above-mentioned first time unit and the first information.
  • Step 420 Determine the second time unit that needs to be monitored according to the monitoring condition.
  • the second time unit is a time unit that needs to be monitored in the resource listening window when determining the transmission conflict situation on the first time unit.
  • n is the time for resource selection for direct transmission.
  • the second time unit is located in the resource listening window.
  • the resource listening window is the time window from nT 0 to n-Tproc, and the value of T 0 is 100 or 1100 milliseconds.
  • Tproc is the time for the terminal device to decode the control information.
  • Since other terminal devices may reserve resources on the second time unit (including periodic resource reservation and non-periodic resource reservation), reserve the time-frequency resources on the first time unit, so as to communicate with the terminal device in the first time unit.
  • the resource selection on the time unit causes conflicts, so the terminal device needs to determine the second time unit that needs to be monitored in the resource listening window located before the first time unit according to the determined monitoring conditions.
  • the terminal device selects the time-frequency resource finally used for the first continuous transmission from the time-frequency resources on the first time unit according to the monitoring result on the second time unit. For example, the terminal device can obtain the transmission conflict situation on the first time unit by monitoring on the second time unit. When there is a transmission conflict, the terminal device determines the possible interference situation when a transmission conflict occurs through measurement. From the time-frequency resources on the first time unit, the terminal device removes the time-frequency resources reserved by other terminal devices with strong interference, and selects the finally-used time-frequency resource from the remaining time-frequency resources.
  • the interference situation is measured by reference signal receiving power (RSRP).
  • RSRP reference signal receiving power
  • the monitoring conditions include but are not limited to:
  • the first monitoring condition needs to be met.
  • the first monitoring condition includes: monitoring at least on a time unit where the second direct transmission may occur, and the second direct transmission is a direct transmission that may perform periodic resource reservation on the time-frequency resource on the first time unit.
  • the second direct transmission by the second terminal device has a certain probability of periodically reserving the time-frequency resources on the first time unit, and the first terminal device cannot The probability is predicted.
  • the first terminal device is a terminal device corresponding to the first direct transmission
  • the second terminal device is a terminal device other than the first terminal device. In some embodiments, there may not be a second terminal device that performs the above-mentioned second direct transmission.
  • the first monitoring condition includes: monitoring at least on a time unit where the second direct transmission may occur, and the second direct transmission is a direct transmission that may perform periodic resource reservation on the time-frequency resource on the first time unit.
  • the second time unit selected by the terminal device according to the first interception condition may be an empty set. That is, the terminal device can ignore transmission conflicts that may be caused by the periodic resource reservation of other terminal devices. By ignoring possible transmission conflicts, although direct transmission performance may be reduced, the energy consumption of terminal equipment monitoring can be reduced.
  • the terminal device can choose whether to meet the first monitoring condition according to its own situation. For example, in the case of insufficient power, the terminal device chooses not to meet the first monitoring condition.
  • “there is no need to ensure that the first monitoring condition is met” can be understood as one of: not satisfying the first monitoring condition, not needing to meet the first monitoring condition, and not compulsorily satisfying the first monitoring condition.
  • the second monitoring condition needs to be met.
  • the second monitoring condition includes: monitoring at least on the time unit where the third direct transmission may occur, and the third direct transmission is a direct transmission that may perform aperiodic resource reservation on the time-frequency resource on the first time unit. .
  • the first terminal device is a terminal device corresponding to the first direct transmission
  • the second terminal device is a terminal device other than the first terminal device. In some embodiments, there may not be a second terminal device that performs the above-mentioned third direct transmission.
  • the second monitoring condition includes: monitoring at least on the time unit where the third direct transmission may occur, and the third direct transmission is a direct transmission that may perform aperiodic resource reservation on the time-frequency resource on the first time unit. .
  • the second time unit selected by the terminal device according to the second interception condition may be an empty set. That is, the terminal device can ignore transmission conflicts that may be caused by aperiodic resource reservation of other terminal devices. By ignoring possible transmission conflicts, although direct transmission performance may be reduced, the energy consumption of terminal equipment monitoring can be reduced. If you choose not to ignore it, you can guarantee the direct transmission performance. For example, in the case of sufficient power, the terminal device selects to meet the first monitoring condition and performs monitoring on the time unit when the third direct transmission may occur.
  • the second interception condition is not met, the second interception condition does not need to be met, and the second interception condition is not compulsorily met.
  • the third monitoring condition needs to be met.
  • the third monitoring condition includes: monitoring at least on the time unit where the second direct transmission may occur, and the second direct transmission may use the reserved period Ts to periodically reserve the time-frequency resources on the first time unit Direct transmission.
  • the fourth monitoring condition needs to be met.
  • the fourth monitoring condition includes: monitoring at least on the time unit where the second direct transmission may occur, and the second direct transmission may use any cycle in the third cycle set to cycle the time-frequency resource on the first time unit
  • the third period set is a subset of the first period set determined according to the reserved period Ts.
  • time unit in the embodiment of the present disclosure includes both a logical time unit and a physical time unit.
  • Logical time unit refers to the time unit that can be used for direct communication.
  • Physical time units refer to all time units, including time units that can be used by direct communication and time units that cannot be used by direct communication (lower time units or time units occupied by other purposes).
  • the unit of the time unit can be a frame (frame), a subframe (subframe), a time slot (slot), a symbol (symbol), etc., and it can also be an absolute time such as 1 ms, 1 us, etc.
  • the terminal device when the terminal device selects the resource of the first continuous transmission, it is based on the time unit of the candidate time-frequency resource for the first continuous transmission and whether it performs periodicity. Resource reservation, to determine the second time unit that needs to be partially monitored, so that regardless of whether the first continuous transmission performs periodic resource reservation, the second time unit that meets the current reservation scenario can be determined, reducing unnecessary The resource monitoring, thereby saving the power consumption of the terminal equipment.
  • the first information includes: aperiodic resource reservation for the first continuous transmission or the reservation period Ts is 0.
  • the first information includes: periodic resource reservation for the first continuous transmission or the reservation period Ts is not 0.
  • the terminal equipment is configured with the first periodic set of periodic resource reservation.
  • K is 16.
  • Fig. 6 shows a flowchart of a partial monitoring method provided by an exemplary embodiment of the present disclosure, and the method may be applied to a terminal device.
  • step 410 can be replaced by any one of the following steps:
  • Step 4111 In the case where the first information includes: the aperiodic resource reservation for the first continuous transmission or the reservation period Ts is 0, it is determined that the first monitoring condition needs to be met.
  • the first monitoring condition includes: monitoring at least on a time unit where the second direct transmission may occur, and the second direct transmission is a direct connection that may periodically reserve the time-frequency resources on the first time unit. transmission.
  • terminal device 1 In the car networking system, in addition to the terminal device 1, there are several other terminal devices.
  • Other terminal devices perform periodic resource reservation or aperiodic resource reservation when performing direct transmission.
  • other terminal devices include: terminal device 2 and terminal device 3.
  • the direct transmission corresponding to the terminal device 2 performs aperiodic resource reservation, and the time-frequency resource on the first time unit is reserved; the direct transmission corresponding to the terminal device 3 performs periodic resource reservation, and the first time is reserved Time-frequency resources on the unit.
  • the terminal device 1 does not necessarily need to monitor the direct transmission corresponding to the terminal device 2, and the direct transmission corresponding to the terminal device 3 (ie, the second direct transmission) needs to be monitored.
  • the second direct transmission is direct transmission that may use any period in the first period set to periodically reserve the time-frequency resource on the first time unit.
  • the first period set is a period set composed of all period values of the periodic resource reservation configured by the terminal device.
  • the first time unit is time unit A, and the second direct transmission may perform periodic resource reservation on one or more time units in ⁇ AT 1 , AT 2 , AT 3 ,..., AT k ⁇ , which is reserved in Time-frequency resources on time unit A. Since the terminal device determines that the first monitoring condition needs to be met, the terminal device needs to monitor ⁇ AT 1 , AT 2 , AT 3 ,..., AT k ⁇ .
  • the second direct transmission is direct transmission that may use any period in the second period set to periodically reserve the time-frequency resources on the first time unit.
  • the second period set Is a subset of the first cycle set.
  • the first time unit is time unit A
  • the second direct transmission may perform periodic resource reservation on one or more time units in ⁇ AT 1 , AT 2 , AT 3 ⁇ , and reserve resources on time unit A. Time-frequency resources. Since the terminal device determines that the first monitoring condition needs to be met, the terminal device needs to monitor ⁇ AT 1 , AT 2 , AT 3 ⁇ .
  • Step 4112 In the case where the first information includes: aperiodic resource reservation for the first continuous transmission or the reservation period Ts is 0, it is determined that there is no need to ensure that the first monitoring condition is met.
  • the first monitoring condition includes: monitoring at least on a time unit where the second direct transmission may occur, and the second direct transmission is a direct connection that may periodically reserve the time-frequency resources on the first time unit. transmission.
  • the second direct transmission is direct transmission that may use any period in the first period set to periodically reserve the time-frequency resource on the first time unit.
  • the first time unit is time unit A
  • the second direct transmission may perform periodic resource reservation on one or more time units in ⁇ AT 1 , AT 2 , AT 3 , ..., AT k ⁇ , and reserve the time-frequency resources on time unit A. Since the terminal device determines that it is not necessary to ensure that the first monitoring condition is met, the terminal device may not need to perform partial monitoring on ⁇ AT 1 , AT 2 , AT 3 ,..., AT k ⁇ .
  • the second direct transmission is direct transmission that may use any period in the second period set to periodically reserve the time-frequency resources on the first time unit.
  • the second period set Is a subset of the first cycle set.
  • the terminal device obtains the second configuration information; and determines the second period set according to the second configuration information.
  • the first time unit is time unit A
  • the second direct transmission may perform periodic resource reservation on one or more time units in ⁇ AT 1 , AT 2 , AT 5 ⁇ , and reserve resources on time unit A. Time-frequency resources. Since the terminal device determines that it is not necessary to ensure that the first monitoring condition is met, the terminal device does not need to monitor ⁇ AT 1 , AT 2 , AT 5 ⁇ .
  • the terminal device obtains the first configuration information; determines, according to the first configuration information, a method that needs to meet the first interception condition; or, determines, according to the first configuration information, a method that does not need to ensure that the first interception condition is satisfied. Way. That is, the terminal device determines to use one of step 4111 and step 4112 according to the first configuration information.
  • the first configuration information is determined through pre-configuration; or, the first configuration information is determined through first downlink signaling from a network device.
  • the first configuration information is configured based on the resource pool.
  • Different resource pools correspond to different first configuration information. For example, for resource pool 1, the terminal device needs to meet the first listening condition; for resource pool 2, the terminal device needs to meet the first listening condition; for resource pool 3, the terminal device does not need to ensure that the first listening condition is met.
  • the first configuration information is configured based on a direct bandwidth part (BandWidth Part, BWP).
  • BWP direct bandwidth part
  • the terminal device on the directly connected BWP1 needs to meet the first monitoring condition; the terminal device on the directly connected BWP2 does not need to ensure that the first monitoring condition is met.
  • the first configuration information is based on the configuration of the terminal device. For example, for terminal device 1, the first monitoring condition needs to be met; for terminal device 2, it is not necessary to ensure that the first monitoring condition is met.
  • the first configuration information is based on cell configuration. All terminal devices in a cell adopt the same monitoring conditions. For example, all terminal devices in cell 1 need to meet the first monitoring condition; all terminal devices in cell 2 need not ensure that the first monitoring condition is met.
  • the first configuration information is configured based on the direct transmission priority.
  • the first configuration information is configured based on a communication manner. For example, for unicast communication, the configuration of the terminal device needs to meet the first listening condition; for multicast communication, the configuration of the terminal device does not need to ensure that the first listening condition is met; for broadcast communication, the configuration of the terminal device needs to meet the first listening condition.
  • the first configuration information is configured based on a resource selection method. For example, for the partial monitoring resource selection method, the configuration terminal device needs to meet the first monitoring condition.
  • the terminal device selects whether it needs to meet the first listening condition, that is, whether it needs to be The monitoring is performed on the time unit of the direct transmission where the periodic resource reservation may be performed on the first time unit, which ensures the flexibility of some monitoring methods.
  • Fig. 7 shows a flowchart of a partial monitoring method provided by an exemplary embodiment of the present disclosure, and the method can be applied to a terminal device.
  • step 410 can be replaced by any one of the following steps:
  • Step 4121 When the first information includes: periodic resource reservation for the first continuous transmission or the reservation period Ts is not 0, it is determined that the second monitoring condition needs to be met.
  • the second monitoring condition includes: monitoring at least on the time unit where the third direct transmission may occur, and the third direct transmission is the direct resource reservation that may perform non-periodic resource reservation for the time-frequency resources on the first time unit. Even transmission.
  • terminal device 1 In the car networking system, in addition to the terminal device 1, there are several other terminal devices.
  • Other terminal devices perform periodic resource reservation or aperiodic resource reservation when performing direct transmission.
  • other terminal devices include: terminal device 2 and terminal device 3.
  • the direct transmission corresponding to the terminal device 2 performs aperiodic resource reservation, and the time-frequency resource on the first time unit is reserved; the direct transmission corresponding to the terminal device 3 performs periodic resource reservation, and the first time is reserved Time-frequency resources on the unit.
  • the terminal device 1 needs to monitor the direct transmission corresponding to the terminal device 2 (that is, the third direct transmission), and there is no need to guarantee the monitoring of the direct transmission corresponding to the terminal device 3 (that is, the second direct transmission).
  • the third direct transmission may perform aperiodic resource reservation on the time unit A-Ti, the time-frequency resource reserved on the time unit A, and Ti is any value from 0 to 32 time slots. . Since the terminal device determines that the second monitoring condition needs to be met, the terminal device needs to monitor the 32 time slots before the time unit A.
  • Step 4122 When the first information includes: periodic resource reservation for the first continuous transmission or the reservation period Ts is not 0, it is determined that there is no need to ensure that the second interception condition is met.
  • the second monitoring condition includes: monitoring at least on the time unit where the third direct transmission may occur, and the third direct transmission is the direct resource reservation that may perform non-periodic resource reservation for the time-frequency resources on the first time unit. Even transmission.
  • the third direct transmission may perform aperiodic resource reservation on the time unit A-Ti, the time-frequency resource reserved on the time unit A, and Ti is any value from 0 to 32 time slots. . Since the terminal device determines that it is not necessary to ensure that the second monitoring condition is met, the terminal device may not need to monitor the 32 time slots before the time unit A.
  • the terminal device obtains the third configuration information; determines, according to the third configuration information, a method that needs to meet the second interception condition; or, determines, according to the third configuration information, a method that does not need to ensure that the second interception condition is satisfied. Way. That is, the terminal device determines to use one of step 4121 and step 4122 according to the third configuration information.
  • the third configuration information is determined through pre-configuration; or, the third configuration information is determined through third downlink signaling from the network device.
  • the third configuration information is configured based on the resource pool. In an implementation manner, the third configuration information is configured based on the directly connected BWP. In an implementation manner, the third configuration information is configured based on the terminal device. In an implementation manner, the third configuration information is based on cell configuration. In an implementation manner, the third configuration information is configured based on direct transmission priority. In an implementation manner, the third configuration information is configured based on a communication manner. In an implementation manner, the third configuration information is configured based on a resource selection method.
  • Step 4123 When the first information includes: periodic resource reservation for the first continuous transmission or the reservation period Ts is not 0, it is determined that the third monitoring condition needs to be met.
  • the third monitoring condition includes: monitoring at least on the time unit where the second direct transmission may occur, and the second direct transmission may use the reserved period Ts to perform periodic resources on the time-frequency resources on the first time unit. Reserved direct transmission.
  • the second direct transmission may perform periodic resource reservation on the time unit A-Ts, and reserve the time-frequency resources on the time unit A. Since the terminal device determines that the third monitoring condition needs to be met, the terminal device needs to monitor the time unit A-Ts.
  • Step 4124 In the case where the first information includes: periodic resource reservation for the first continuous transmission or the reservation period Ts is not 0, it is determined that the fourth monitoring condition needs to be met.
  • the fourth monitoring condition includes: monitoring at least on the time unit where the second direct transmission may occur, and the second direct transmission may use any period in the third cycle set to perform the monitoring on the time-frequency resource on the first time unit.
  • the third period set is a subset of the first period set determined according to the reserved period Ts.
  • the second direct transmission may perform periodic resource reservation on one or more time units in ⁇ A-Ts, A-2*Ts, A-3*Ts ⁇ , and reserve the time and frequency on time unit A resource. Since the terminal device determines that the fourth monitoring condition needs to be met, the terminal device needs to monitor the time unit ⁇ A-Ts, A-2*Ts, A-3*Ts ⁇ .
  • the period in the third period set is an integer multiple of the reserved period Ts, or the reserved period Ts is an integer multiple of the period in the third period set.
  • the terminal device obtains the fourth configuration information; determines the third period set according to the fourth configuration information; wherein the fourth configuration information includes the third period set, and the reserved period Ts and the third period set The first mapping relationship between.
  • the third cycle set 0 null 100 100, 200, 300, 400, 500 200 100, 200, 400 ... ...
  • the terminal device determines the third period set according to the first mapping relationship indicated by the fourth configuration information. For example, if the reserved period Ts is 200, the third period set is ⁇ 100, 200, 400 ⁇ .
  • the fourth configuration information is determined through pre-configuration; or, the fourth configuration information is determined through fourth downlink signaling from the network device.
  • the fourth configuration information is configured based on the resource pool. In an implementation manner, the fourth configuration information is configured based on the directly connected BWP. In an implementation manner, the fourth configuration information is based on the configuration of the terminal device. In an implementation manner, the fourth configuration information is based on cell configuration. In an implementation manner, the fourth configuration information is configured based on the direct transmission priority. In an implementation manner, the fourth configuration information is configured based on a communication manner. In an implementation manner, the fourth configuration information is configured based on a resource selection method.
  • the terminal device selects whether it needs to meet the second listening condition, that is, whether it needs to be Monitor on the time unit where the direct transmission that may be reserved for aperiodic resources on the first time unit is located, or select the third listening condition that needs to be met, that is, on the first time unit for the possible use of the reserved period Ts Perform monitoring on the time unit where the direct transmission for periodic resource reservation is located, or select the fourth monitoring condition that needs to be met, that is, the direct transmission that may use the third period set to perform periodic resource reservation on the first time unit.
  • the monitoring is performed on the time unit where the transmission is located, which ensures the flexibility of some monitoring methods.
  • FIG. 8 shows a flowchart of a partial monitoring method provided by an exemplary embodiment of the present disclosure, and the method may be applied to a terminal device. In this embodiment, the following steps are further included:
  • Step 430 Determine the minimum number set of the first time unit according to the number of resource selections.
  • the number of resource selections is the number of time-frequency resources that the terminal device needs to select when selecting resources.
  • the number of resource selections is positively correlated with the number of direct data transmissions. That is, the greater the number of direct data transmissions, the greater the number of resource choices.
  • the minimum number set is the set of the minimum number of time units that can be selected by the terminal device during resource selection.
  • the terminal device obtains the second mapping relationship between the number of resource selections and the minimum number set; wherein, the second mapping relationship is determined by pre-configuration, or the second mapping relationship is obtained from the network The fifth downlink signaling of the device is determined.
  • Number of resource choices Minimum number of sets 1 ⁇ 1, 2, 3, 4 ⁇ 2 ⁇ 2, 4, 8, 10 ⁇ ... ...
  • the terminal device needs to select more time-frequency resources, that is, the larger the number of resource selections, more time units are usually required to ensure that appropriate time-frequency resources can be selected to avoid possible transmission conflicts.
  • the terminal device can learn the minimum number set according to the second mapping relationship.
  • Step 440 Determine the minimum number of targets in the minimum number set.
  • the terminal device selects a minimum number in the minimum number set as the target minimum number.
  • a minimum number in the minimum number set as the target minimum number Exemplarily, with reference to Table 2, when the number of resource selections is 1, the terminal device can be configured to select one of ⁇ 1, 2, 3, 4 ⁇ as the target minimum number.
  • the terminal device determines the minimum number of targets from the minimum number set through pre-configuration or sixth downlink signaling from the network device.
  • Step 450 Among the candidate time units, determine the first time unit that meets the requirement of the minimum number of targets.
  • the candidate time unit is a time window corresponding to the terminal device when selecting a resource.
  • the candidate time unit includes several time units, and the terminal device determines the first time unit among the candidate time units.
  • n is the time for resource selection for direct transmission.
  • the candidate time unit is a resource selection window starting at time n+T1 and ending at time n+T2.
  • the terminal device selects no less than 2 time units as the first time unit among the candidate time units.
  • the terminal device when determining the first time unit, determines the minimum number of first time units according to the number of resource selections, avoiding too few first time units and ensuring that the terminal device can select Appropriate time-frequency resources are used for the first continuous transmission.
  • FIG. 9 shows a schematic diagram of a part of a monitoring device provided by an exemplary embodiment of the present application.
  • the device can be implemented as a terminal device or a part of a terminal device.
  • the device includes: a determining module 901;
  • the determining module 901 is configured to determine the monitoring condition according to the first time unit and the first information
  • the determining module 901 is configured to determine the second time unit that needs to be monitored according to the monitoring conditions;
  • the first time unit is the time unit where the candidate time-frequency resource for resource selection for the first continuous transmission is located, and the first information includes: periodic resource reservation for the first continuous transmission or the reservation period Ts is 0 ; Or, the first continuous transmission performs aperiodic resource reservation or the reservation period Ts is not 0.
  • the device further includes an acquisition module 902.
  • the determining module 901 is configured to determine that the first interception needs to be met when the first information includes: the first continuous transmission for aperiodic resource reservation or the reservation period Ts is 0 Condition; or, the determining module 901, configured to determine that there is no need to ensure that the first interception condition is met when the first information includes: the first continuous transmission for aperiodic resource reservation or the reservation period Ts is 0;
  • the first monitoring condition includes: monitoring at least on a time unit where the second direct transmission may occur, and the second direct transmission is a direct transmission that may perform periodic resource reservation on the time-frequency resource on the first time unit.
  • the obtaining module 902 is configured to obtain first configuration information; the determining module 901 is configured to determine, according to the first configuration information, a method that needs to meet the first listening condition; or, the determining module is configured to According to the first configuration information, it is determined to adopt a manner that does not need to ensure that the first monitoring condition is met.
  • the first configuration information is determined through pre-configuration; or, the first configuration information is determined through first downlink signaling from a network device.
  • the first configuration information is configured based on the resource pool; or, the first configuration information is configured based on the direct connection bandwidth part BWP; or, the first configuration information is configured based on the terminal device; or , The first configuration information is configured based on the cell; or, the first configuration information is configured based on the direct transmission priority; or, the first configuration information is configured based on the communication mode; or, the first configuration information is based on resource selection Way to configure.
  • the terminal device is configured with a first period set of periodic resource reservation; the second direct transmission may use any period in the first period set to compare the time frequency on the first time unit.
  • the resource is directly connected for periodic resource reservation; or, the second direct transmission is a direct connection that may use any period in the second period set to periodically reserve the time-frequency resource on the first time unit.
  • the second cycle set is a subset of the first cycle set.
  • the second configuration information is determined through pre-configuration; or, the second configuration information is determined through second downlink signaling from the network device.
  • the determining module 901 is configured to determine that the second interception needs to be met when the first information includes: periodic resource reservation for the first continuous transmission or the reservation period Ts is not 0 Condition; or, the determining module 901, configured to determine that there is no need to ensure that the second interception condition is met when the first information includes: periodic resource reservation for the first continuous transmission or the reservation period Ts is not 0; wherein, The second monitoring condition includes: monitoring at least on the time unit where the third direct transmission may occur, and the third direct transmission is a direct transmission that may perform aperiodic resource reservation on the time-frequency resource on the first time unit. .
  • the acquiring module 902 is configured to acquire third configuration information; the determining module 901 is configured to determine, according to the third configuration information, a method that needs to meet the second listening condition; or, the determining module is configured to According to the third configuration information, it is determined to adopt a method that does not need to ensure that the second interception condition is met.
  • the third configuration information is determined through pre-configuration; or, the third configuration information is determined through third downlink signaling from the network device.
  • the third configuration information is configured based on the resource pool; or, the third configuration information is configured based on the directly connected BWP; or, the third configuration information is configured based on the terminal device; or, the first Three configuration information is based on cell configuration; or, the third configuration information is based on direct transmission priority configuration; or, the third configuration information is based on communication mode configuration; or, the third configuration information is based on resource selection mode configuration of.
  • the determining module 901 is configured to determine that the third interception needs to be satisfied when the first information includes: periodic resource reservation for the first continuous transmission or the reservation period Ts is not 0 Conditions; where the third monitoring condition includes: monitoring at least on the time unit where the second direct transmission may occur, and the second direct transmission may use the reserved period Ts to cycle the time-frequency resources on the first time unit Direct transmission with reservation of sexual resources.
  • the terminal device is configured with a first periodic set of periodic resource reservation; the determining module 901 is configured to perform periodic resource reservation or reservation when the first information includes: the first continuous transmission When the period Ts is not 0, it is determined that the fourth monitoring condition needs to be met; where the fourth monitoring condition includes: monitoring at least in the time unit when the second direct transmission may occur, and the second direct transmission may use the first In any period of the three-period set, direct transmission of periodic resource reservation is performed on the time-frequency resource on the first time unit, and the third period set is a subset of the first period set determined according to the reserved period Ts.
  • the period in the third period set is an integer multiple of the reserved period Ts, or the reserved period Ts is an integer multiple of the period in the third period set.
  • the obtaining module 902 is configured to obtain fourth configuration information; the determining module 901 is configured to determine a third period set according to the fourth configuration information; wherein the fourth configuration information includes the third period set, And the first mapping relationship between the reserved period Ts and the third period set.
  • the fourth configuration information is determined through pre-configuration; or, the fourth configuration information is determined through fourth downlink signaling from the network device.
  • the fourth configuration information is configured based on the resource pool; or, the fourth configuration information is configured based on the direct connection BWP; or, the fourth configuration information is configured based on the terminal device; or, the first The fourth configuration information is configured based on the cell; or, the fourth configuration information is configured based on the direct transmission priority; or, the fourth configuration information is configured based on the communication method; or, the fourth configuration information is configured based on the resource selection method of.
  • the determining module 901 is configured to determine the minimum number set of the first time unit according to the number of resource selections; the determining module 901 is configured to determine the minimum number of targets in the minimum number set; the determining module 901. Used to determine the first time unit that meets the requirement of the minimum number of targets among the candidate time units.
  • the obtaining module 902 is configured to obtain a second mapping relationship between the number of resource selections and the minimum number set; wherein the second mapping relationship is determined through pre-configuration, or, the second mapping relationship It is determined by the fifth downlink signaling from the network device.
  • FIG. 10 shows a schematic structural diagram of a terminal device provided by an exemplary embodiment of the present disclosure.
  • the terminal device includes: a processor 101, a receiver 102, a transmitter 103, a memory 104, and a bus 105.
  • the processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by running software programs and modules.
  • the receiver 102 and the transmitter 103 may be implemented as a communication component, and the communication component may be a communication chip.
  • the memory 104 is connected to the processor 101 through a bus 105.
  • the memory 104 may be used to store at least one instruction, and the processor 101 is used to execute the at least one instruction to implement each step in the foregoing method embodiment.
  • the memory 104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read Only Memory (Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read -Only Memory, ROM), magnetic memory, flash memory, Programmable Read-Only Memory (PROM).
  • a computer-readable storage medium stores at least one instruction, at least one program, code set, or instruction set, and the at least one instruction, the At least one program, the code set, or the instruction set is loaded and executed by the processor to implement the partial monitoring method performed by the communication device provided by the foregoing method embodiments.
  • the program can be stored in a computer-readable storage medium.
  • the storage medium mentioned can be a read-only memory, a magnetic disk or an optical disk, etc.

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Abstract

本公开公开了一种部分监听方法、装置、终端设备及存储介质,涉及通信技术领域。该方法包括:根据第一时间单元和第一信息,确定监听条件;根据所述监听条件,确定需要监听的第二时间单元;其中,所述第一时间单元是为第一直连传输进行资源选择的候选时频资源所处的时间单元,所述第一信息包括:所述第一直连传输进行非周期性资源预留或预留周期Ts为0;或,所述第一直连传输进行周期性资源预留或所述预留周期Ts不为0。

Description

部分监听方法、装置、终端设备及存储介质 技术领域
本公开涉及通信技术领域,特别涉及一种部分监听方法、装置、终端设备及存储介质。
背景技术
在直连通信(Side Link,SL)中,支持终端设备采用资源预留和基于信道监听(sensing)的资源选择方法。每个终端设备周期性的在当前周期对下一周期的传输资源进行预留,并在信道上监听其他终端设备发送的预留信息,并根据预留信息以及对应的信道测量结果预测未来时间的频率资源上的干扰。
由于终端设备不停的信道监听会耗费大量的电量,引入了“部分监听”(partial sensing)的概念以获得节电的效果。相关技术中,可以通过配置或者预配置的方法指定一部分资源预留周期。如果终端设备需要选择一个时间单元A上的时频资源,终端设备需要保证至少在一个时间单元集合上进行监听。该时间单元集合包括所有满足如下条件的时间单元B:在时间单元B上的直连传输可能使用该资源预留周期对时间单元A上的时频资源进行资源预留。
在5G V2X中,提供了更灵活的资源预留周期选择。除了从100ms到1000ms的这10个可能的资源预留周期之外,资源预留周期的可能取值还包括从1ms到99ms中的任意一个值。另一方面,还提供了非周期性的资源预留。针对上述情况,如何确定需要监听的时间单元,相关技术尚未提供较好的解决方案。
发明内容
本公开实施例提供了一种部分监听方法、装置、终端设备及存储介质,在进行第一直连传输资源选择时,终端设备根据第一直连传输进行资源选择的候选时频资源所处的时间单元和自身是否进行周期性资源预留,确定需要进行部分监听的时间单元。所述技术方案如下:
根据本公开的一个方面,提供了一种部分监听方法,应用于终端设备中,所述方法包括:
根据第一时间单元和第一信息,确定监听条件;
根据所述监听条件,确定需要监听的第二时间单元;
其中,所述第一时间单元是为第一直连传输进行资源选择的候选时频资源所处的时间单元,所述第一信息包括:所述第一直连传输进行周期性资源预留或预留周期Ts为0;或,所述第一直连传输进行非周期性资源预留或所述预留周期Ts不为0。
根据本公开的一个方面,提供了一种部分监听装置,应用于终端设备中,所述装置包括:确定模块;
所述确定模块,用于根据第一时间单元和第一信息,确定监听条件;
所述确定模块,用于根据所述监听条件,确定需要监听的第二时间单元;
其中,所述第一时间单元是为第一直连传输进行资源选择的候选时频资源所处的时间单元,所述第一信息包括:所述第一直连传输进行周期性资源预留或预留周期Ts为0;或,所述第一直连传输进行非周期性资源预留或所述预留周期Ts不为0。
根据本公开的一个方面,提供了一种终端设备,所述终端设备包括:处理器;与所述处理器相连的收发器;用于存储所述处理器的可执行指令的存储器;其中,所述处理器被配置为加载并执行所述可执行指令以实现如上述方面所述的部分监听方法。
根据本公开的一个方面,提供了一种计算机可读存储介质,所述可读存储介质中存储有可执行指令,所述可执行指令由所述处理器加载并执行以实现如上述方面所述的部分监听方法。
本公开实施例提供的技术方案至少包括如下有益效果:
终端设备在进行第一直连传输的资源选择时,根据第一直连传输进行资源选择的候选时频资源所处的时间单元和自身是否进行周期性资源预留,确定需要进行部分监听的第二时间单元,使得不论第一直连传输是否进行周期性资源预留,都能够确定出符合当前预留场景下的第二时间单元,减少不必要的资源监听,从而节省终端设备的电量消耗。
附图说明
为了更清楚地说明本公开实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开 的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本公开一个示例性实施例提供的直连通信的传输模式的示意图;
图2是本公开一个示例性实施例提供的部分监听的示意图;
图3是本公开一个示例性实施例提供的支持直连通信的通信系统的框图;
图4是本公开一个示例性实施例提供的部分监听方法的流程图;
图5是本公开一个示例性实施例提供的部分监听的示意图;
图6是本公开一个示例性实施例提供的部分监听方法的流程图;
图7是本公开一个示例性实施例提供的部分监听方法的流程图;
图8是本公开一个示例性实施例提供的部分监听方法的流程图;
图9是本公开一个示例性实施例提供的部分监听装置的框图;
图10是本公开一个示例性实施例提供的终端设备的结构框图。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚,下面将结合附图对本公开实施方式作进一步地详细描述。
首先,对本公开中涉及的名词做出解释:
车联网(Vehicle to everything,V2X):是未来智能交通运输系统的关键技术,主要研究基于第三代合作伙伴项目(Third Generation Partnership Project,3GPP)通信协议的车辆数据传输方案。V2X通信包括车与车(Vehicle to Vehicle,V2V)通信、车与路侧基础设施(Vehicle to Infrastructure,V2I)通信以及车与行人(Vehicle to People,V2P)通信。V2X应用将改善驾驶安全性、减少拥堵和车辆能耗、提高交通效率等。
直连通信(Side Link,SL)传输:是一种设备到设备的通信方式,具有较高的频谱效率和较低的传输时延。在3GPP中定义了两种直连通信的传输模式:模式A和模式B。如图1中的(a)所示,模式A中,终端设备在传输时所使用的资源是由网络设备通过下行链路分配的,终端设备根据网络设备分配的资源在侧行链路上进行数据的发送;网络设备可以为终端设备分配单次传输的资源,也可以为终端分配半静态传输的资源。如图1中的(b)所示,模式B中,终端设备在资源池中自行选取一个资源进行数据的传输。具体的,终端设备可以通过侦听的方式在资源池中选取传输资源,或者通过随机选取的方式在资源池中 选取传输资源。
本公开的实施例,涉及上述模式B。终端设备采用资源预留和基于信道监听(sensing)的资源选择方法。每个终端设备周期性的在当前传输时,对下一周期的传输资源进行预留。和当前传输所使用的时频资源相比,所预留的时频资源在时间上间隔一个指定的周期,频率上占用相同的大小和位置。每个终端设备需要不停的在信道上监听其他终端设备发送的预留信息,并根据预留信息以及对应的信道测量结果,预测未来的时频资源上的干扰。终端设备会尽量选择干扰较小的时间频率资源进行数据发送。
由于终端设备不停的进行信道监听会耗费大量的电量,因此,在LTE V2X中引入了“部分监听”(partial sensing)的概念以(主要是帮助手持终端设备)获得节电的效果。由于在LTE V2X中进行资源预留的周期取值是属于一个有限集合的(例如{100,200,…,1000}ms),对于给定时间单元上的时频资源来说,能够预留该时频资源的传输出现的时间位置也是属于一个有限集合的(例如该时间单元之前的{100,200,300,…,1000}ms的时间单元)。因此给定一段时间位置(例如K个时间单元),终端设备可以只监听之前部分时间单元内的直连传输(例如K个时间单元之前{100,200,…,1000}ms的时间单元),就可以不遗漏所有对这段时间位置上的时频资源预留。
示例性的,结合参考图2,时间单元A是终端设备进行资源选择时选择的时间单元。终端设备需要对时间单元A-100、时间单元A-200、时间单元A-300、时间单元A-400、时间单元A-500、时间单元A-600、时间单元A-700、时间单元A-800、时间单元A-900和时间单元A-1000进行监听。
在LTE V2X中,协议允许终端设备只在一个有限的时间集合上进行资源选择,并保证监听所有可能预留位于该时间集合上时频资源的时间位置。对于其他时间位置,终端设备可以进入节能状态。通过网络设备配置或者预配置的方式,对终端设备进行资源选择的有限时间集合的时间单元数目的最小值进行限制,防止时间集合太小造成冲突概率升高,或者出现没有合适的时频资源可以选择的情况。另外,也可以对资源预留的周期集合进行配置或者预配置,只选择集合中一部分周期。终端设备只需要保证使用这部分周期进行资源预留的直连传输可以被监听到。
在5G V2X中,与LTE V2X不同的是,还支持非周期性的资源预留。每次当前传输可以对未来W个(逻辑)时间单元内的任意位置的最多一个或者两个(由 配置或者预配置决定)相同大小的时频资源进行预留,W为正整数。5G V2X也支持周期性的资源预留,可以通过配置或者预配置进行使能和去使能。
图3示出了本申请一个示意性实施例提供的支持直连通信的通信系统的框图。该通信系统可以是非漫游5G系统构架(Non-roaming 5G system architecture)的示意图,该系统构架可以应用于使用D2D技术的车联网(Vehicle to everything,V2X)业务。
该系统架构包括数据网络(Data Network,DN),该数据网络中设置有V2X业务所需的V2X应用服务器(Application Server)。该系统构架还包括5G核心网,5G核心网的网络功能包括:统一数据管理(Unified Data Management,UDM)、策略控制功能(Policy Control Function,PCF)、网络开放功能(Network Exposure Function,NEF)、应用功能(Application Function,AF)、统一数据存储(Unified Data Repository,UDR)、接入和移动性管理功能(Access and Mobility Management Function,AMF)、会话管理功能(Session Management Function,SMF)以及用户面功能(User Plane Function,UPF)。
该系统构架还包括:无线接入网(New Generation-Radio Access Network,NG-RAN)以及示例性示出的4个用户设备(即用户设备1至用户设备4),其中,每个用户设备均设置有V2X应用(Application)。无线接入网中设置有一个或多个网络设备,比如基站(gNB)。用户设备向接入网设备进行上行传输。
该系统构架中,数据网络与5G核心网中的用户面功能通过N6参考点(Reference Point)连接,V2X应用服务器与用户设备中的V2X应用通过V1参考点连接;无线接入网与5G核心网中的AMF功能以及UPF功能连接,无线接入网分别通过Uu参考点与用户设备1以及用户设备5连接;多个用户设备之间通过PC5参考点进行侧行传输,多个V2X应用之间通过V5参考点连接。上述参考点也可称为“接口”。
图4示出了本公开一个示例性实施例提供的部分监听方法的流程图,该方法可以应用于终端设备中,该方法包括如下步骤:
步骤410,根据第一时间单元和第一信息,确定监听条件。
其中,第一时间单元是为第一直连传输进行资源选择的候选时频资源所处的时间单元。
示例性的,结合参考图5,n是直连传输进行资源选择的时间。终端设备在从时刻n+T 1开始,到时刻n+T 2结束的资源选择窗中,选择不少于一定数目的第一时间单元。其中,0<=T 1<=T proc,T proc是终端设备进行资源选择以及准备数据所允许的最大时间;T 2min<=T 2<=直连传输业务的时延要求范围。T 2min的取值为{1,5,10,20}*2 μ个时隙,其中μ=0,1,2,3分别对应于子载波间隔是15kHz,30kHz,60kHz,120kHz的情况。当T 2min大于直连传输业务的时延要求范围时,T 2=直连传输业务的时延要求范围即可。
其中,第一信息是第一直连传输对应的资源预留信息。第一信息包括:第一直连传输进行非周期性资源预留或预留周期Ts为0,或,第一直连传输进行周期性资源预留或预留周期Ts不为0。
可选地,周期性资源预留指的是终端设备在进行当前周期的直连传输时,对下一周期的时频资源进行预留。如:预留周期为Ts,终端设备在t时刻进行第一直连传输时,预留了t+Ts时刻的传输资源。当前周期发送的直连数据和下一周期发送的直连数据一般是不相同的。周期性资源预留的预留周期Ts的取值一般只能取有限集合的数值,例如可能包括:0,100,200,300,400,500,600,700,800,900,1000毫秒。
可选地,非周期性资源预留指的是终端设备在进行当前周期的直连传输时,对未来一段时间单元内的任意位置的时频资源进行预留。例如:终端设备在t时刻进行第一直连传输时,预留了t+a时刻的传输资源,a可以为从1到31的任意时刻。另外,终端设备可以在非周期性资源预留的时频资源里传输和当前周期的直连传输相同的直连数据。
其中,监听条件是终端设备为保障第一直连传输而采用的部分监听的判断方法,监听条件也可以理解为“监听方式”。终端设备根据上述第一时间单元和第一信息,确定出监听条件。
步骤420,根据监听条件,确定需要监听的第二时间单元。
其中,第二时间单元是在确定第一时间单元上的传输冲突情况时,需要在资源侦听窗中监听的时间单元。
示例性的,结合参考图5,n是直连传输进行资源选择的时间。第二时间单元位于资源侦听窗中。资源侦听窗是从n-T 0到n-Tproc的时间窗口,T 0的取值为100或1100毫秒。Tproc为终端设备解码控制信息的时间。
由于其他终端设备可能在第二时间单元上进行资源预留(包括周期性资源 预留和非周期性资源预留),预留第一时间单元上的时频资源,从而与终端设备在第一时间单元上的资源选择造成冲突,所以终端设备需要根据确定的监听条件,在位于第一时间单元之前的资源侦听窗中,确定出需要监听的第二时间单元。
可选地,终端设备在选择第一时间单元后,根据第二时间单元上的监听结果,从第一时间单元上的时频资源中,选出第一直连传输最终使用的时频资源。举例来说,终端设备通过在第二时间单元上的监听,可以获得第一时间单元上的传输冲突情况。在存在传输冲突情况时,终端设备通过测量确定发生传输冲突时可能的干扰情况。从第一时间单元上的时频资源中,终端设备去除干扰较强的被其他终端设备预留的时频资源,并在剩余的时频资源中选择最终使用的时频资源。
可选地,干扰情况通过参考信号接收功率(Reference Signal Receiving Power,RSRP)测量。示例性的,若其他终端设备在第二时间单元上的时频资源的RSRP大于阈值的情况下,则终端设备确定干扰较强。
可选地,监听条件(或监听方式)包括但不限于:
1、需要满足第一监听条件。第一监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,第二直连传输是可能对第一时间单元上的时频资源进行周期性资源预留的直连传输。
需要说明的是,“可能”指的是:第二终端设备进行的第二直连传输存在一定的概率对第一时间单元上的时频资源进行周期性资源预留,第一终端设备无法对该概率进行预测。其中,第一终端设备是第一直连传输对应的终端设备,第二终端设备是除第一终端设备之外的其他终端设备。在一些实施例中,可能并不存在进行上述第二直连传输的第二终端设备。
2、无需保障满足第一监听条件。第一监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,第二直连传输是可能对第一时间单元上的时频资源进行周期性资源预留的直连传输。
可选地,“无需保障满足第一监听条件”指的是:终端设备根据第一监听条件选择的第二时间单元可以为空集。即,终端设备可以忽视可能由于其他终端设备周期性资源预留造成的传输冲突。通过忽略可能性的传输冲突,虽然可能造成直连传输性能的下降,但能够减少终端设备监听的能耗。终端设备可以根据自身情况,选择是否满足第一监听条件。如:在电量不足的情况下,终端设 备选择不满足第一监听条件。
可选地,“无需保障满足第一监听条件”可以理解为:不满足第一监听条件、不需要满足第一监听条件、不强制满足第一监听条件中的一种。
3、需要满足第二监听条件。第二监听条件包括:至少在第三直连传输可能出现的时间单元上进行监听,第三直连传输是可能对第一时间单元上的时频资源进行非周期性资源预留的直连传输。
需要说明的是,“可能”指的是:第二终端设备进行的第三直连传输存在一定的概率对第一时间单元上的时频资源进行非周期性资源预留,第一终端设备无法对该概率进行预测。其中,第一终端设备是第一直连传输对应的终端设备,第二终端设备是除第一终端设备之外的其他终端设备。在一些实施例中,可能并不存在进行上述第三直连传输的第二终端设备。
4、无需保障满足第二监听条件。第二监听条件包括:至少在第三直连传输可能出现的时间单元上进行监听,第三直连传输是可能对第一时间单元上的时频资源进行非周期性资源预留的直连传输。
可选地,“无需保障满足第二监听条件”指的是:终端设备根据第二监听条件选择的第二时间单元可以为空集。即,终端设备可以忽视可能由于其他终端设备非周期性资源预留造成的传输冲突。通过忽略可能性的传输冲突,虽然可能造成直连传输性能的下降,但能够减少终端设备监听的能耗。若选择不忽略,则可以保障直连传输性能。如:在电量充足的情况下,终端设备选择满足第一监听条件,在第三直连传输可能出现的时间单元上进行监听。
可选地,“无需保障满足第二监听条件”可以理解为:不满足第二监听条件、不需要满足第二监听条件、不强制满足第二监听条件中的一种。
5、需要满足第三监听条件。第三监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,第二直连传输是可能使用预留周期Ts对第一时间单元上的时频资源进行周期性资源预留的直连传输。
6、需要满足第四监听条件。第四监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,第二直连传输是可能使用第三周期集合中的任一周期对第一时间单元上时频资源进行周期性资源预留的直连传输,第三周期集合是根据预留周期Ts确定的第一周期集合的子集。
需要说明的是,本公开实施例中的“时间单元”既包括逻辑时间单元也包括物理时间单元。逻辑时间单元指能够被直连通信所使用的时间单元。物理时 间单元指所有的时间单元,既包括能够被直连通信使用的时间单元,也包括不能被直连通信使用的时间单元(如下行时间单元,或者被其他用途占用的时间单元)。其中,时间单元的单位可以是帧(frame),子帧(subframe),时隙(slot),符号(symbol)等,也可以是绝对时间如1ms,1us等。
综上所述,本实施例提供的方法,终端设备在进行第一直连传输的资源选择时,根据第一直连传输进行资源选择的候选时频资源所处的时间单元和自身是否进行周期性资源预留,确定需要进行部分监听的第二时间单元,使得不论第一直连传输是否进行周期性资源预留,都能够确定出符合当前预留场景下的第二时间单元,减少不必要的资源监听,从而节省终端设备的电量消耗。
在基于图4的可选实施例中,包括如下两种场景:
场景1:第一信息包括:第一直连传输进行非周期性资源预留或预留周期Ts为0。
场景2:第一信息包括:第一直连传输进行周期性资源预留或预留周期Ts不为0。
在上述两种场景中,终端设备均配置有周期性资源预留的第一周期集合。示例性的,第一周期集合为T={T 1,T 2,…,T K},一共K个周期,其中任意一个周期不等于0。可选地,K为16。
针对场景1,结合参考图6。图6示出了本公开一个示例性实施例提供的部分监听方法的流程图,该方法可以应用于终端设备中。在本实施例中,步骤410可以替换实现为如下任意一个步骤:
步骤4111,在第一信息包括:第一直连传输进行非周期性资源预留或预留周期Ts为0的情况下,确定需要满足第一监听条件。
其中,第一监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,第二直连传输是可能对第一时间单元上的时频资源进行周期性资源预留的直连传输。
在车联网系统中,除终端设备1之外,还存在若干个其他终端设备。其他终端设备在进行直连传输时,进行周期性资源预留或非周期性资源预留。如:其他终端设备包括:终端设备2、终端设备3。其中,终端设备2对应的直连传输进行非周期性资源预留,预留第一时间单元上的时频资源;终端设备3对应 的直连传输进行周期性资源预留,预留第一时间单元上的时频资源。则终端设备1对终端设备2对应的直连传输不一定需要进行监听,对终端设备3对应的直连传输(即第二直连传输)需要进行监听。
在一种实现方式中,第二直连传输是可能使用第一周期集合中的任一周期对第一时间单元上的时频资源进行周期性资源预留的直连传输。
其中,第一周期集合是终端设备配置的周期性资源预留的所有周期值组成的周期集合。
示例性的,第一周期集合为T={T 1,T 2,…,T K}。第一时间单元为时间单元A,第二直连传输可能在{A-T 1,A-T 2,A-T 3,…,A-T k}中的一个或多个时间单元上进行周期性资源预留,预留在时间单元A上的时频资源。由于终端设备确定需要满足第一监听条件,终端设备需要对{A-T 1,A-T 2,A-T 3,…,A-T k}进行监听。
在另一种实现方式中,第二直连传输是可能使用第二周期集合中的任一周期对第一时间单元上的时频资源进行周期性资源预留的直连传输,第二周期集合为第一周期集合的子集。
示例性的,第一周期集合为T={T 1,T 2,…,T K},第二周期集合为T={T 1,T 2,T 3},为第一周期集合的子集。第一时间单元为时间单元A,第二直连传输可能在{A-T 1,A-T 2,A-T 3}中的一个或多个时间单元上进行周期性资源预留,预留在时间单元A上的时频资源。由于终端设备确定需要满足第一监听条件,终端设备需要对{A-T 1,A-T 2,A-T 3}进行监听。
步骤4112,在第一信息包括:第一直连传输进行非周期性资源预留或预留周期Ts为0的情况下,确定无需保障满足第一监听条件。
其中,第一监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,第二直连传输是可能对第一时间单元上的时频资源进行周期性资源预留的直连传输。
在一种实现方式中,第二直连传输是可能使用第一周期集合中的任一周期对第一时间单元上的时频资源进行周期性资源预留的直连传输。
示例性的,第一时间单元为时间单元A,第一周期集合为T={T 1,T 2,…,T K}。第二直连传输可能在{A-T 1,A-T 2,A-T 3,…,A-T k}中的一个或多个时间单元上进行周期性资源预留,预留在时间单元A上的时频资源。由于终端设备确定无需保障满足第一监听条件,终端设备可以无需对{A-T 1,A-T 2,A-T 3,…, A-T k}进行部分监听。
在另一种实现方式中,第二直连传输是可能使用第二周期集合中的任一周期对第一时间单元上的时频资源进行周期性资源预留的直连传输,第二周期集合为第一周期集合的子集。
可选地,终端设备获取第二配置信息;根据第二配置信息确定第二周期集合。
示例性的,第一周期集合为T={T 1,T 2,…,T K},第二周期集合为T={T 1,T 2,T 5},为第一周期集合的子集。第一时间单元为时间单元A,第二直连传输可能在{A-T 1,A-T 2,A-T 5}中的一个或多个时间单元上进行周期性资源预留,预留在时间单元A上的时频资源。由于终端设备确定无需保障满足第一监听条件,终端设备无需对{A-T 1,A-T 2,A-T 5}进行监听。
在一个可选的实施例中,终端设备获取第一配置信息;根据第一配置信息确定采用需要满足第一监听条件的方式;或,根据第一配置信息确定采用无需保障满足第一监听条件的方式。即,终端设备根据第一配置信息,确定采用步骤4111和步骤4112中的一种。
其中,第一配置信息是通过预配置确定的;或,第一配置信息是通过来自网络设备的第一下行信令确定的。
在一种实现方式中,第一配置信息是基于资源池配置的。不同的资源池对应于不同的第一配置信息。如:对于资源池1,终端设备需要满足第一监听条件;对于资源池2,终端设备需要满足第一监听条件;对于资源池3,终端设备无需保障满足第一监听条件。
在一种实现方式中,第一配置信息是基于直连带宽部分(BandWidth Part,BWP)配置的。如:在直连BWP1上的终端设备需要满足第一监听条件;在直连BWP2上的终端设备无需保障满足第一监听条件。
在一种实现方式中,第一配置信息是基于终端设备配置的。如:对于终端设备1,需要满足第一监听条件;对于终端设备2,无需保障满足第一监听条件。
在一种实现方式中,第一配置信息是基于小区配置的。一个小区内的所有终端设备采用相同的监听条件。如:在小区1内的终端设备均需要满足第一监听条件;在小区2内的终端设备均无需保障满足第一监听条件。
在一种实现方式中,第一配置信息是基于直连传输优先级配置的。对于不同的直连传输优先级,可以配置终端设备使用不同的监听条件。如:对于直连 传输优先级1,配置终端设备需要满足第一监听条件;对于直连传输优先级2,配置终端设备无需保障满足第一监听条件。
在一种实现方式中,第一配置信息是基于通信方式配置的。如:对于单播通信,配置终端设备需要满足第一监听条件;对于组播通信,配置终端设备无需保障满足第一监听条件;对于广播通信,配置终端设备需要满足第一监听条件。
在一种实现方式中,第一配置信息是基于资源选择方式配置的。如:对于部分监听资源选择方式,配置终端设备需要满足第一监听条件。
综上所述,本实施例提供的方法,在第一直连传输进行非周期性资源预留或预留周期Ts为0的情况下,终端设备选择是否需要满足第一监听条件,即是否需要对可能在第一时间单元上进行周期性资源预留的直连传输所在的时间单元上进行监听,保障了部分监听方法的灵活性。
针对场景2,结合参考图7。图7示出了本公开一个示例性实施例提供的部分监听方法的流程图,该方法可以应用于终端设备中。在本实施例中,步骤410可以替换实现为如下任意一个步骤:
步骤4121,在第一信息包括:第一直连传输进行周期性资源预留或预留周期Ts不为0的情况下,确定需要满足第二监听条件。
其中,第二监听条件包括:至少在第三直连传输可能出现的时间单元上进行监听,第三直连传输是可能对第一时间单元上的时频资源进行非周期性资源预留的直连传输。
在车联网系统中,除终端设备1之外,还存在若干个其他终端设备。其他终端设备在进行直连传输时,进行周期性资源预留或非周期性资源预留。如:其他终端设备包括:终端设备2、终端设备3。其中,终端设备2对应的直连传输进行非周期性资源预留,预留第一时间单元上的时频资源;终端设备3对应的直连传输进行周期性资源预留,预留第一时间单元上的时频资源。则终端设备1需要对终端设备2对应的直连传输(即第三直连传输)进行监听,无需保障对终端设备3对应的直连传输(即第二直连传输)进行监听。
示例性的,第三直连传输可能在时间单元A-Ti上进行非周期性资源预留,预留在时间单元A上的时频资源,Ti为0至32个时隙中的任意一个值。由于终端设备确定需要满足第二监听条件,终端设备需要对时间单元A前的32个时隙 进行监听。
步骤4122,在第一信息包括:第一直连传输进行周期性资源预留或预留周期Ts不为0的情况下,确定无需保障满足第二监听条件。
其中,第二监听条件包括:至少在第三直连传输可能出现的时间单元上进行监听,第三直连传输是可能对第一时间单元上的时频资源进行非周期性资源预留的直连传输。
示例性的,第三直连传输可能在时间单元A-Ti上进行非周期性资源预留,预留在时间单元A上的时频资源,Ti为0至32个时隙中的任意一个值。由于终端设备确定无需保障满足第二监听条件,终端设备可以无需对时间单元A前的32个时隙进行监听。
在一个可选的实施例中,终端设备获取第三配置信息;根据第三配置信息确定采用需要满足第二监听条件的方式;或,根据第三配置信息确定采用无需保障满足第二监听条件的方式。即,终端设备根据第三配置信息,确定采用步骤4121和步骤4122中的一种。
其中,第三配置信息是通过预配置确定的;或,第三配置信息是通过来自网络设备的第三下行信令确定的。
在一种实现方式中,第三配置信息是基于资源池配置的。在一种实现方式中,第三配置信息是基于直连BWP配置的。在一种实现方式中,第三配置信息是基于终端设备配置的。在一种实现方式中,第三配置信息是基于小区配置的。在一种实现方式中,第三配置信息是基于直连传输优先级配置的。在一种实现方式中,第三配置信息是基于通信方式配置的。在一种实现方式中,第三配置信息是基于资源选择方式配置的。
步骤4123,在第一信息包括:第一直连传输进行周期性资源预留或预留周期Ts不为0的情况下,确定需要满足第三监听条件。
其中,第三监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,第二直连传输是可能使用预留周期Ts对第一时间单元上的时频资源进行周期性资源预留的直连传输。
示例性的,第二直连传输可能在时间单元A-Ts上进行周期性资源预留,预留在时间单元A上的时频资源。由于终端设备确定需要满足第三监听条件,终端设备需要对时间单元A-Ts进行监听。
步骤4124,在第一信息包括:第一直连传输进行周期性资源预留或预留周 期Ts不为0的情况下,确定需要满足第四监听条件。
其中,第四监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,第二直连传输是可能使用第三周期集合中的任一周期对第一时间单元上时频资源进行周期性资源预留的直连传输,第三周期集合是根据预留周期Ts确定的第一周期集合的子集。
示例性的,第三周期集合T={Ts,2*Ts,3*Ts},是根据预留周期Ts确定的第一周期集合的一个子集。第二直连传输可能在{A-Ts,A-2*Ts,A-3*Ts}中的一个或多个时间单元上进行周期性资源预留,预留在时间单元A上的时频资源。由于终端设备确定需要满足第四监听条件,终端设备需要对时间单元{A-Ts,A-2*Ts,A-3*Ts}进行监听。
可选地,第三周期集合中的周期取值为预留周期Ts的整数倍,或,预留周期Ts为第三周期集合中的周期取值的整数倍。
示例性的,第一周期集合T={100,200,300,400,500,600,700,800,900,1000}。若预留周期Ts=200,则第三周期集合为{100,200,400,600,800,1000};若预留周期Ts=300,则第三周期集合为{100,300,600,900}。
在一个可选的实施例中,终端设备获取第四配置信息;根据第四配置信息确定第三周期集合;其中,第四配置信息包括第三周期集合,以及预留周期Ts和第三周期集合之间的第一映射关系。
示例性的,结合参考表一:
表一
预留周期Ts 第三周期集合
0
100 100,200,300,400,500
200 100,200,400
终端设备根据第四配置信息指示的第一映射关系,确定第三周期集合。如:预留周期Ts为200,则第三周期集合为{100,200,400}。
其中,第四配置信息是通过预配置确定的;或,第四配置信息是通过来自网络设备的第四下行信令确定的。
在一种实现方式中,第四配置信息是基于资源池配置的。在一种实现方式中,第四配置信息是基于直连BWP配置的。在一种实现方式中,第四配置信息 是基于终端设备配置的。在一种实现方式中,第四配置信息是基于小区配置的。在一种实现方式中,第四配置信息是基于直连传输优先级配置的。在一种实现方式中,第四配置信息是基于通信方式配置的。在一种实现方式中,第四配置信息是基于资源选择方式配置的。
综上所述,本实施例提供的方法,在第一直连传输进行周期性资源预留或预留周期Ts不为0的情况下,终端设备选择是否需要满足第二监听条件,即是否需要对可能在第一时间单元上进行非周期性资源预留的直连传输所在的时间单元上进行监听,或选择需要满足第三监听条件,即对可能使用预留周期Ts在第一时间单元上进行周期性资源预留的直连传输所在的时间单元上进行监听,或选择需要满足第四监听条件,即对可能使用以第三周期集合在第一时间单元上进行周期性资源预留的直连传输所在的时间单元上进行监听,保障了部分监听方法的灵活性。
在基于图4、图6、图7的可选实施例中,图8示出了本公开一个示例性实施例提供的部分监听方法的流程图,该方法可以应用于终端设备中。在本实施例中,还包括如下步骤:
步骤430,根据资源选择数目,确定第一时间单元的最小数目集合。
资源选择数目是终端设备在进行资源选择时需要选择的时频资源的数目。可选地,资源选择数目与直连数据的传输次数正相关。即,直连数据的传输次数越多,资源选择数目越大。
最小数目集合是终端设备在资源选择时可供选择的最小时间单元的个数的集合。
在一个可选的实施例中,终端设备获取资源选择数目与最小数目集合之间的第二映射关系;其中,第二映射关系是通过预配置确定的,或,第二映射关系是通过来自网络设备的第五下行信令确定的。
示例性的,结合参考表二:
表二
资源选择数目 最小数目集合
1 {1,2,3,4}
2 {2,4,8,10}
当终端设备需要选择更多的时频资源,即资源选择数目越大时,通常需要更多的时间单元以保证能够选择到合适的时频资源以避免可能的传输冲突。在给定需要的资源选择数目后,终端设备可以根据第二映射关系得知最小数目集合。
步骤440,在最小数目集合中确定出目标最小数目。
终端设备在最小数目集合中选择一个最小数目作为目标最小数目。示例性的,结合参考表二,当资源选择数目为1时,可以配置终端设备选择{1,2,3,4}中的一个取值为目标最小数目。
可选地,终端设备通过预配置或者来自网络设备的第六下行信令,从最小数目集合中确定出目标最小数目。
步骤450,在候选时间单元中,确定出满足目标最小数目的要求的第一时间单元。
候选时间单元是终端设备在进行资源选择时对应的时间窗口,候选时间单元包括若干个时间单元,终端设备在候选时间单元中确定出第一时间单元。
示例性的,n是直连传输进行资源选择的时间。候选时间单元是从时刻n+T1开始,到时刻n+T2结束的资源选择窗。示例性的,目标最小数目为2,则终端设备在候选时间单元中,选择不少于2个时间单元作为第一时间单元。
综上所述,本实施例提供的方法,终端设备在确定第一时间单元时,根据资源选择数目决定出第一时间单元的最小数目,避免了第一时间单元过少,确保终端设备能够选择出合适的时频资源进行第一直连传输。
需要说明的是,上述方法实施例可以分别单独实施,也可以组合实施,本公开对此不进行限制。
图9示出了本申请一个示例性实施例提供的部分监听装置的示意图,该装置可以实现成为终端设备,或者,实现成为终端设备中的一部分,该装置包括:确定模块901;
确定模块901,用于根据第一时间单元和第一信息,确定监听条件;
确定模块901,用于根据监听条件,确定需要监听的第二时间单元;
其中,第一时间单元是为第一直连传输进行资源选择的候选时频资源所处的时间单元,第一信息包括:第一直连传输进行周期性资源预留或预留周期Ts 为0;或,第一直连传输进行非周期性资源预留或预留周期Ts不为0。
在一些可选的实施例中,该装置还包括获取模块902。
在一个可选的实施例中,确定模块901,用于在第一信息包括:第一直连传输进行非周期性资源预留或预留周期Ts为0的情况下,确定需要满足第一监听条件;或,确定模块901,用于在第一信息包括:第一直连传输进行非周期性资源预留或预留周期Ts为0的情况下,确定无需保障满足第一监听条件;其中,第一监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,第二直连传输是可能对第一时间单元上的时频资源进行周期性资源预留的直连传输。
在一个可选的实施例中,获取模块902,用于获取第一配置信息;确定模块901,用于根据第一配置信息确定采用需要满足第一监听条件的方式;或,确定模块,用于根据第一配置信息确定采用无需保障满足第一监听条件的方式。
在一个可选的实施例中,第一配置信息是通过预配置确定的;或,第一配置信息是通过来自网络设备的第一下行信令确定的。
在一个可选的实施例中,第一配置信息是基于资源池配置的;或,第一配置信息是基于直连带宽部分BWP配置的;或,第一配置信息是基于终端设备配置的;或,第一配置信息是基于小区配置的;或,第一配置信息是基于直连传输优先级配置的;或,第一配置信息是基于通信方式配置的;或,第一配置信息是基于资源选择方式配置的。
在一个可选的实施例中,终端设备配置有周期性资源预留的第一周期集合;第二直连传输是可能使用第一周期集合中的任一周期对第一时间单元上的时频资源进行周期性资源预留的直连传输;或者,第二直连传输是可能使用第二周期集合中的任一周期对第一时间单元上的时频资源进行周期性资源预留的直连传输,第二周期集合为第一周期集合的子集。
在一个可选的实施例中,获取模块902,用于获取第二配置信息;确定模块901,用于根据第二配置信息确定第二周期集合。
在一个可选的实施例中,第二配置信息是通过预配置确定的;或,第二配置信息是通过来自网络设备的第二下行信令确定的。
在一个可选的实施例中,确定模块901,用于在第一信息包括:第一直连传输进行周期性资源预留或预留周期Ts不为0的情况下,确定需要满足第二监听条件;或,确定模块901,用于在第一信息包括:第一直连传输进行周期性资源 预留或预留周期Ts不为0的情况下,确定无需保障满足第二监听条件;其中,第二监听条件包括:至少在第三直连传输可能出现的时间单元上进行监听,第三直连传输是可能对第一时间单元上的时频资源进行非周期性资源预留的直连传输。
在一个可选的实施例中,获取模块902,用于获取第三配置信息;确定模块901,用于根据第三配置信息确定采用需要满足第二监听条件的方式;或,确定模块,用于根据第三配置信息确定采用无需保障满足第二监听条件的方式。
在一个可选的实施例中,第三配置信息是通过预配置确定的;或,第三配置信息是通过来自网络设备的第三下行信令确定的。
在一个可选的实施例中,第三配置信息是基于资源池配置的;或,第三配置信息是基于直连BWP配置的;或,第三配置信息是基于终端设备配置的;或,第三配置信息是基于小区配置的;或,第三配置信息是基于直连传输优先级配置的;或,第三配置信息是基于通信方式配置的;或,第三配置信息是基于资源选择方式配置的。
在一个可选的实施例中,确定模块901,用于在第一信息包括:第一直连传输进行周期性资源预留或预留周期Ts不为0的情况下,确定需要满足第三监听条件;其中,第三监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,第二直连传输是可能使用预留周期Ts对第一时间单元上的时频资源进行周期性资源预留的直连传输。
在一个可选的实施例中,终端设备配置有周期性资源预留的第一周期集合;确定模块901,用于在第一信息包括:第一直连传输进行周期性资源预留或预留周期Ts不为0的情况下,确定需要满足第四监听条件;其中,第四监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,第二直连传输是可能使用第三周期集合中的任一周期对第一时间单元上时频资源进行周期性资源预留的直连传输,第三周期集合是根据预留周期Ts确定的第一周期集合的子集。
在一个可选的实施例中,第三周期集合中的周期取值为预留周期Ts的整数倍,或,预留周期Ts为第三周期集合中的周期取值的整数倍。
在一个可选的实施例中,获取模块902,用于获取第四配置信息;确定模块901,用于根据第四配置信息确定第三周期集合;其中,第四配置信息包括第三周期集合,以及预留周期Ts和第三周期集合之间的第一映射关系。
在一个可选的实施例中,第四配置信息是通过预配置确定的;或,第四配 置信息是通过来自网络设备的第四下行信令确定的。
在一个可选的实施例中,第四配置信息是基于资源池配置的;或,第四配置信息是基于直连BWP配置的;或,第四配置信息是基于终端设备配置的;或,第四配置信息是基于小区配置的;或,第四配置信息是基于直连传输优先级配置的;或,第四配置信息是基于通信方式配置的;或,第四配置信息是基于资源选择方式配置的。
在一个可选的实施例中,确定模块901,用于根据资源选择数目,确定第一时间单元的最小数目集合;确定模块901,用于根据在最小数目集合中确定出目标最小数目;确定模块901,用于在候选时间单元中,确定出满足目标最小数目的要求的第一时间单元。
在一个可选的实施例中,获取模块902,用于获取资源选择数目与最小数目集合之间的第二映射关系;其中,第二映射关系是通过预配置确定的,或,第二映射关系是通过来自网络设备的第五下行信令确定的。
图10示出了本公开一个示例性实施例提供的终端设备的结构示意图,该终端设备包括:处理器101、接收器102、发射器103、存储器104和总线105。
处理器101包括一个或者一个以上处理核心,处理器101通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。
接收器102和发射器103可以实现为一个通信组件,该通信组件可以是一块通信芯片。
存储器104通过总线105与处理器101相连。
存储器104可用于存储至少一个指令,处理器101用于执行该至少一个指令,以实现上述方法实施例中的各个步骤。
此外,存储器104可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:磁盘或光盘,电可擦除可编程只读存储器(Erasable Programmable Read Only Memory,EEPROM),可擦除可编程只读存储器(Erasable Programmable Read Only Memory,EPROM),静态随时存取存储器(Static Random Access Memory,SRAM),只读存储器(Read-Only Memory,ROM),磁存储器,快闪存储器,可编程只读存储器(Programmable Read-Only Memory,PROM)。
在示例性实施例中,还提供了一种计算机可读存储介质,所述计算机可读 存储介质中存储有至少一条指令、至少一段程序、代码集或指令集,所述至少一条指令、所述至少一段程序、所述代码集或指令集由处理器加载并执行以实现上述各个方法实施例提供的由通信设备执行的部分监听方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本公开的可选实施例,并不用以限制本公开,凡在本公开的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本公开的保护范围之内。

Claims (42)

  1. 一种部分监听方法,其特征在于,应用于终端设备中,所述方法包括:
    根据第一时间单元和第一信息,确定监听条件;
    根据所述监听条件,确定需要监听的第二时间单元;
    其中,所述第一时间单元是为第一直连传输进行资源选择的候选时频资源所处的时间单元,所述第一信息包括:所述第一直连传输进行非周期性资源预留或预留周期Ts为0;或,所述第一直连传输进行周期性资源预留或所述预留周期Ts不为0。
  2. 根据权利要求1所述的方法,其特征在于,所述根据第一时间单元和第一信息,确定监听条件,包括:
    在所述第一信息包括:所述第一直连传输进行非周期性资源预留或所述预留周期Ts为0的情况下,确定需要满足第一监听条件;
    或,
    在所述第一信息包括:所述第一直连传输进行非周期性资源预留或所述预留周期Ts为0的情况下,确定无需保障满足所述第一监听条件;
    其中,所述第一监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,所述第二直连传输是可能对所述第一时间单元上的时频资源进行周期性资源预留的直连传输。
  3. 根据权利要求2所述的方法,其特征在于,所述方法还包括:
    获取第一配置信息;
    根据所述第一配置信息确定采用所述需要满足所述第一监听条件的方式;
    或,根据所述第一配置信息确定采用所述无需保障满足所述第一监听条件的方式。
  4. 根据权利要求3所述的方法,其特征在于,
    所述第一配置信息是通过预配置确定的;
    或,
    所述第一配置信息是通过来自网络设备的第一下行信令确定的。
  5. 根据权利要求3所述的方法,其特征在于,
    所述第一配置信息是基于资源池配置的;
    或,所述第一配置信息是基于直连带宽部分BWP配置的;
    或,所述第一配置信息是基于所述终端设备配置的;
    或,所述第一配置信息是基于小区配置的;
    或,所述第一配置信息是基于直连传输优先级配置的;
    或,所述第一配置信息是基于通信方式配置的;
    或,所述第一配置信息是基于资源选择方式配置的。
  6. 根据权利要求2所述的方法,其特征在于,所述终端设备配置有周期性资源预留的第一周期集合;
    所述第二直连传输是可能使用所述第一周期集合中的任一周期对所述第一时间单元上的时频资源进行周期性资源预留的直连传输;
    或者,
    所述第二直连传输是可能使用第二周期集合中的任一周期对所述第一时间单元上的时频资源进行周期性资源预留的直连传输,所述第二周期集合为所述第一周期集合的子集。
  7. 根据权利要求6所述的方法,其特征在于,所述方法还包括:
    获取第二配置信息;
    根据所述第二配置信息确定所述第二周期集合。
  8. 根据权利要求7所述的方法,其特征在于,
    所述第二配置信息是通过预配置确定的;
    或,
    所述第二配置信息是通过来自网络设备的第二下行信令确定的。
  9. 根据权利要求1所述的方法,其特征在于,所述根据第一时间单元和第一信息,确定监听条件,包括:
    在所述第一信息包括:所述第一直连传输进行周期性资源预留或所述预留 周期Ts不为0的情况下,确定需要满足第二监听条件;
    或,
    在所述第一信息包括:所述第一直连传输进行周期性资源预留或所述预留周期Ts不为0的情况下,确定无需保障满足所述第二监听条件;
    其中,所述第二监听条件包括:至少在第三直连传输可能出现的时间单元上进行监听,所述第三直连传输是可能对所述第一时间单元上的时频资源进行非周期性资源预留的直连传输。
  10. 根据权利要求9所述的方法,其特征在于,所述方法还包括:
    获取第三配置信息;
    根据所述第三配置信息确定采用所述需要满足所述第二监听条件的方式;
    或,根据所述第三配置信息确定采用所述无需保障满足所述第二监听条件的方式。
  11. 根据权利要求10所述的方法,其特征在于,
    所述第三配置信息是通过预配置确定的;
    或,
    所述第三配置信息是通过来自网络设备的第三下行信令确定的。
  12. 根据权利要求10所述的方法,其特征在于,
    所述第三配置信息是基于资源池配置的;
    或,所述第三配置信息是基于直连BWP配置的;
    或,所述第三配置信息是基于所述终端设备配置的;
    或,所述第三配置信息是基于小区配置的;
    或,所述第三配置信息是基于直连传输优先级配置的;
    或,所述第三配置信息是基于通信方式配置的;
    或,所述第三配置信息是基于资源选择方式配置的。
  13. 根据权利要求1所述的方法,其特征在于,所述根据第一时间单元和第一信息,确定监听条件,包括:
    在所述第一信息包括:所述第一直连传输进行周期性资源预留或所述预留周期Ts不为0的情况下,确定需要满足第三监听条件;
    其中,所述第三监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,所述第二直连传输是可能使用所述预留周期Ts对所述第一时间单元上的时频资源进行周期性资源预留的直连传输。
  14. 根据权利要求1所述的方法,其特征在于,所述终端设备配置有周期性资源预留的第一周期集合;
    所述根据第一时间单元和第一信息,确定监听条件,包括:
    在所述第一信息包括:所述第一直连传输进行周期性资源预留或所述预留周期Ts不为0的情况下,确定需要满足第四监听条件;
    其中,所述第四监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,所述第二直连传输是可能使用第三周期集合中的任一周期对第一时间单元上时频资源进行周期性资源预留的直连传输,所述第三周期集合是根据所述预留周期Ts确定的所述第一周期集合的子集。
  15. 根据权利要求14所述的方法,其特征在于,
    所述第三周期集合中的周期取值为所述预留周期Ts的整数倍,或,所述预留周期Ts为所述第三周期集合中的周期取值的整数倍。
  16. 根据权利要求14所述的方法,其特征在于,所述方法还包括:
    获取第四配置信息;
    根据所述第四配置信息确定所述第三周期集合;
    其中,所述第四配置信息包括所述第三周期集合,以及所述预留周期Ts和所述第三周期集合之间的第一映射关系。
  17. 根据权利要求16所述的方法,其特征在于,
    所述第四配置信息是通过预配置确定的;
    或,
    所述第四配置信息是通过来自网络设备的第四下行信令确定的。
  18. 根据权利要求16所述的方法,其特征在于,
    所述第四配置信息是基于资源池配置的;
    或,所述第四配置信息是基于直连BWP配置的;
    或,所述第四配置信息是基于所述终端设备配置的;
    或,所述第四配置信息是基于小区配置的;
    或,所述第四配置信息是基于直连传输优先级配置的;
    或,所述第四配置信息是基于通信方式配置的;
    或,所述第四配置信息是基于资源选择方式配置的。
  19. 根据权利要求1至18任一所述的方法,其特征在于,所述方法还包括:
    根据资源选择数目,确定所述第一时间单元的最小数目集合;
    在所述最小数目集合中确定出目标最小数目;
    在候选时间单元中,确定出满足所述目标最小数目的要求的所述第一时间单元。
  20. 根据权利要求19所述的方法,其特征在于,所述方法还包括:
    获取所述资源选择数目与所述最小数目集合之间的第二映射关系;
    其中,所述第二映射关系是通过预配置确定的,或,所述第二映射关系是通过来自网络设备的第五下行信令确定的。
  21. 一种部分监听装置,其特征在于,应用于终端设备中,所述装置包括:确定模块;
    所述确定模块,用于根据第一时间单元和第一信息,确定监听条件;
    所述确定模块,用于根据所述监听条件,确定需要监听的第二时间单元;
    其中,所述第一时间单元是为第一直连传输进行资源选择的候选时频资源所处的时间单元,所述第一信息包括:所述第一直连传输进行非周期性资源预留或预留周期Ts为0;或,所述第一直连传输进行周期性资源预留或所述预留周期Ts不为0。
  22. 根据权利要求21所述的装置,其特征在于,
    所述确定模块,用于在所述第一信息包括:所述第一直连传输进行非周期性资源预留或所述预留周期Ts为0的情况下,确定需要满足第一监听条件;
    或,
    所述确定模块,用于在所述第一信息包括:所述第一直连传输进行非周期性资源预留或所述预留周期Ts为0的情况下,确定无需保障满足所述第一监听条件;
    其中,所述第一监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,所述第二直连传输是可能对所述第一时间单元上的时频资源进行周期性资源预留的直连传输。
  23. 根据权利要求22所述的装置,其特征在于,所述装置还包括:获取模块;
    所述获取模块,用于获取第一配置信息;
    所述确定模块,用于根据所述第一配置信息确定采用所述需要满足所述第一监听条件的方式;
    或,所述确定模块,用于根据所述第一配置信息确定采用所述无需保障满足所述第一监听条件的方式。
  24. 根据权利要求23所述的装置,其特征在于,
    所述第一配置信息是通过预配置确定的;
    或,
    所述第一配置信息是通过来自网络设备的第一下行信令确定的。
  25. 根据权利要求23所述的装置,其特征在于,
    所述第一配置信息是基于资源池配置的;
    或,所述第一配置信息是基于直连带宽部分BWP配置的;
    或,所述第一配置信息是基于所述终端设备配置的;
    或,所述第一配置信息是基于小区配置的;
    或,所述第一配置信息是基于直连传输优先级配置的;
    或,所述第一配置信息是基于通信方式配置的;
    或,所述第一配置信息是基于资源选择方式配置的。
  26. 根据权利要求22所述的装置,其特征在于,所述终端设备配置有周期性资源预留的第一周期集合;
    所述第二直连传输是可能使用所述第一周期集合中的任一周期对所述第一时间单元上的时频资源进行周期性资源预留的直连传输;
    或者,
    所述第二直连传输是可能使用第二周期集合中的任一周期对所述第一时间单元上的时频资源进行周期性资源预留的直连传输,所述第二周期集合为所述第一周期集合的子集。
  27. 根据权利要求26所述的装置,其特征在于,所述装置还包括:获取模块;
    所述获取模块,用于获取第二配置信息;
    所述确定模块,用于根据所述第二配置信息确定所述第二周期集合。
  28. 根据权利要求27所述的装置,其特征在于,
    所述第二配置信息是通过预配置确定的;
    或,
    所述第二配置信息是通过来自网络设备的第二下行信令确定的。
  29. 根据权利要求21所述的装置,其特征在于,
    所述确定模块,用于在所述第一信息包括:所述第一直连传输进行周期性资源预留或所述预留周期Ts不为0的情况下,确定需要满足第二监听条件;
    或,
    所述确定模块,用于在所述第一信息包括:所述第一直连传输进行周期性资源预留或所述预留周期Ts不为0的情况下,确定无需保障满足所述第二监听条件;
    其中,所述第二监听条件包括:至少在第三直连传输可能出现的时间单元上进行监听,所述第三直连传输是可能对所述第一时间单元上的时频资源进行 非周期性资源预留的直连传输。
  30. 根据权利要求29所述的装置,其特征在于,所述装置还包括:获取模块;
    所述获取模块,用于获取第三配置信息;
    所述确定模块,用于根据所述第三配置信息确定采用所述需要满足所述第二监听条件的方式;
    或,所述确定模块,用于根据所述第三配置信息确定采用所述无需保障满足所述第二监听条件的方式。
  31. 根据权利要求30所述的装置,其特征在于,
    所述第三配置信息是通过预配置确定的;
    或,
    所述第三配置信息是通过来自网络设备的第三下行信令确定的。
  32. 根据权利要求30所述的装置,其特征在于,
    所述第三配置信息是基于资源池配置的;
    或,所述第三配置信息是基于直连BWP配置的;
    或,所述第三配置信息是基于所述终端设备配置的;
    或,所述第三配置信息是基于小区配置的;
    或,所述第三配置信息是基于直连传输优先级配置的;
    或,所述第三配置信息是基于通信方式配置的;
    或,所述第三配置信息是基于资源选择方式配置的。
  33. 根据权利要求21所述的装置,其特征在于,
    所述确定模块,用于在所述第一信息包括:所述第一直连传输进行周期性资源预留或所述预留周期Ts不为0的情况下,确定需要满足第三监听条件;
    其中,所述第三监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,所述第二直连传输是可能使用所述预留周期Ts对所述第一时间单元上的时频资源进行周期性资源预留的直连传输。
  34. 根据权利要求21所述的装置,其特征在于,所述终端设备配置有周期性资源预留的第一周期集合;
    所述确定模块,用于在所述第一信息包括:所述第一直连传输进行周期性资源预留或所述预留周期Ts不为0的情况下,确定需要满足第四监听条件;
    其中,所述第四监听条件包括:至少在第二直连传输可能出现的时间单元上进行监听,所述第二直连传输是可能使用第三周期集合中的任一周期对第一时间单元上时频资源进行周期性资源预留的直连传输,所述第三周期集合是根据所述预留周期Ts确定的所述第一周期集合的子集。
  35. 根据权利要求34所述的装置,其特征在于,
    所述第三周期集合中的周期取值为所述预留周期Ts的整数倍,或,所述预留周期Ts为所述第三周期集合中的周期取值的整数倍。
  36. 根据权利要求34所述的装置,其特征在于,所述装置还包括:获取模块;
    所述获取模块,用于获取第四配置信息;
    所述确定模块,用于根据所述第四配置信息确定所述第三周期集合;
    其中,所述第四配置信息包括所述第三周期集合,以及所述预留周期Ts和所述第三周期集合之间的第一映射关系。
  37. 根据权利要求36所述的装置,其特征在于,
    所述第四配置信息是通过预配置确定的;
    或,
    所述第四配置信息是通过来自网络设备的第四下行信令确定的。
  38. 根据权利要求36所述的装置,其特征在于,
    所述第四配置信息是基于资源池配置的;
    或,所述第四配置信息是基于直连BWP配置的;
    或,所述第四配置信息是基于所述终端设备配置的;
    或,所述第四配置信息是基于小区配置的;
    或,所述第四配置信息是基于直连传输优先级配置的;
    或,所述第四配置信息是基于通信方式配置的;
    或,所述第四配置信息是基于资源选择方式配置的。
  39. 根据权利要求21至38任一所述的装置,其特征在于,
    所述确定模块,用于根据资源选择数目,确定所述第一时间单元的最小数目集合;
    所述确定模块,用于根据在所述最小数目集合中确定出目标最小数目;
    所述确定模块,用于在候选时间单元中,确定出满足所述目标最小数目的要求的所述第一时间单元。
  40. 根据权利要求39所述的装置,其特征在于,所述装置还包括:获取模块;
    所述获取模块,用于获取所述资源选择数目与所述最小数目集合之间的第二映射关系;
    其中,所述第二映射关系是通过预配置确定的,或,所述第二映射关系是通过来自网络设备的第五下行信令确定的。
  41. 一种终端设备,其特征在于,所述终端设备包括:
    处理器;
    与所述处理器相连的收发器;
    用于存储所述处理器的可执行指令的存储器;
    其中,所述处理器被配置为加载并执行所述可执行指令以实现如权利要求1至20任一所述的部分监听方法。
  42. 一种计算机可读存储介质,其特征在于,所述可读存储介质中存储有可执行指令,所述可执行指令由处理器加载并执行以实现如权利要求1至20任一所述的部分监听方法。
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