WO2022151280A1 - 一种通信方法、装置及存储介质 - Google Patents

一种通信方法、装置及存储介质 Download PDF

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Publication number
WO2022151280A1
WO2022151280A1 PCT/CN2021/071936 CN2021071936W WO2022151280A1 WO 2022151280 A1 WO2022151280 A1 WO 2022151280A1 CN 2021071936 W CN2021071936 W CN 2021071936W WO 2022151280 A1 WO2022151280 A1 WO 2022151280A1
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Prior art keywords
time
time unit
offset value
user equipment
unit
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PCT/CN2021/071936
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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 KR1020237026329A priority Critical patent/KR20230126737A/ko
Priority to EP21918488.4A priority patent/EP4280700A4/en
Priority to CN202180000231.0A priority patent/CN112840708B/zh
Priority to JP2023543039A priority patent/JP2024502679A/ja
Priority to US18/261,162 priority patent/US20240073871A1/en
Priority to BR112023014126A priority patent/BR112023014126A2/pt
Priority to PCT/CN2021/071936 priority patent/WO2022151280A1/zh
Publication of WO2022151280A1 publication Critical patent/WO2022151280A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a communication method, device, and storage medium.
  • An effective method for sidelink energy saving in R17 New Radio (NR) direct connection communication is to reduce the time for user equipment (User Equipment, UE) to monitor the channel, and the user equipment to monitor the channel in part of the time.
  • LTE-V2X in R14 supports partial monitoring resource selection, which defines the channel monitoring conditions that need to be met for partial monitoring resource selection.
  • the current sidelink resource selection in R16 supports preemption and re-evaluation mechanisms, which also depend on user monitoring.
  • the user equipment Before the selected time-frequency resources are directly connected for transmission, the user equipment needs to determine whether the selected resources are still suitable for transmission according to the results of previous monitoring, and if not, the resources need to be re-selected.
  • the selected time-frequency resource is not reserved by other transmissions, it is called re-evaluation.
  • preemption When the selected time-frequency resource has been reserved by other transmissions, it is called preemption.
  • the present disclosure provides a communication method, device and storage medium.
  • a communication method is provided, applied to a user equipment, including:
  • the determining a set of time units for which channel monitoring needs to be performed includes: determining a set of time units for which channel monitoring needs to be performed according to a second time unit, wherein the second time unit includes the first time unit.
  • the time domain location of the link transmission time frequency resource includes: determining a set of time units for which channel monitoring needs to be performed according to a second time unit, wherein the second time unit includes the first time unit.
  • the determining the set of time units that need to perform channel monitoring according to the second time unit includes: determining the set of time units that need to perform channel monitoring according to the first time unit and the second time unit .
  • the set of time units includes time units belonging to between m-Ta and n-Tb; wherein, the m is the second time unit, the n is the first time unit, The Ta is a first offset value associated with the second time unit, and the Tb is a second offset value associated with the first time unit.
  • the first offset value is a fixed value; alternatively, the first offset value is a predefined default value; alternatively, the first offset value is based on a downlink sent from a network device Control signaling is determined.
  • the first offset value is a fixed value
  • the fixed value is a maximum time difference between reserved aperiodic direct connection transmission time-frequency resources.
  • the second offset value is a predefined default value; or, the first offset value is determined based on the communication capability of the user equipment.
  • the first offset value is smaller than the difference between the second time unit and the third time unit; the third time unit selects the first direct transmission time-frequency for the user equipment The time domain position where resource selection is performed; or, the third time unit is the time domain position where the user equipment performs the second direct connection transmission, and the second direct connection transmission reserves the first direct connection Transmission time frequency resources.
  • the set of time units includes a time unit corresponding to a difference between the second time unit and a third offset value, where the third offset value is based on a periodic time-frequency of the user equipment
  • the resource reservation period value is determined.
  • the third offset value is a period value of the periodic time-frequency resource reservation of the user equipment, or an integer multiple of the period value of the periodic time-frequency resource reservation of the user equipment.
  • the period value of the periodic time-frequency resource reservation is determined based on a set of period values for periodic resource reservation; the set of period values for periodic resource reservation is determined based on a pre-configured message or based on information from a network device.
  • the sent downlink control signaling is determined.
  • the determining the set of time units for which channel monitoring needs to be performed includes:
  • a set of time units for which channel monitoring needs to be performed is determined, where the first information is used to indicate information for determining the set of time units.
  • the first information is determined based on a pre-configuration message or determined based on downlink control signaling sent from a network device.
  • the first information is used to indicate one or a combination of the following information:
  • a communication apparatus which is applied to a user equipment and includes: a processing unit configured to respond to the user equipment's need to perform a first direct transmission time frequency in a first time unit Re-evaluate or pre-empt resources to determine the time unit set for which channel monitoring needs to be performed, and re-evaluate or pre-empt the first direct transmission time-frequency resource according to the direct-connected channel monitoring result on the time unit set. Preempt judgment.
  • the processing unit determines a time unit set for which channel monitoring needs to be performed according to a second time unit, where the second time unit includes a time domain position of the first direct transmission time-frequency resource.
  • the processing unit determines, according to the first time unit and the second time unit, a set of time units for which channel monitoring needs to be performed.
  • the set of time units includes time units belonging to between m-Ta and n-Tb;
  • the m is the second time unit
  • the n is the first time unit
  • the Ta is the first offset value associated with the second time unit
  • the Tb is the first offset value associated with the second time unit. The second offset value associated with the first time unit.
  • the first offset value is a fixed value; or the first offset value is a predefined default value; or the first offset value is based on a downlink control sent from a network device signaling is determined.
  • the first offset value is a fixed value
  • the fixed value is a maximum time difference between reserved aperiodic direct connection transmission time-frequency resources.
  • the second offset value is a predefined default value; or, the first offset value is determined based on the communication capability of the user equipment.
  • the first offset value is smaller than the difference between the second time unit and the third time unit
  • the third time unit is the time domain position for resource selection when the user equipment selects the time-frequency resource for the first direct connection transmission; or, the third time unit is the time when the user equipment performs the second direct connection transmission. domain location, and the second direct-connection transmission reserves the first direct-connection transmission time-frequency resources.
  • the set of time units includes a time unit corresponding to a difference between the second time unit and a third offset value, where the third offset value is based on a periodic time-frequency of the user equipment
  • the resource reservation period value is determined.
  • the third offset value is a period value of the periodic time-frequency resource reservation of the user equipment, or an integer multiple of the period value of the periodic time-frequency resource reservation of the user equipment.
  • the period value of the periodic time-frequency resource reservation is determined based on a set of period values for periodic resource reservation; the set of period values for periodic resource reservation is determined based on a pre-configured message or based on information from a network device.
  • the sent downlink control signaling is determined.
  • the processing unit determines a set of time units for which channel monitoring needs to be performed based on first information, where the first information is used to indicate information for determining the set of time units.
  • the first information is determined based on a pre-configuration message or determined based on downlink control signaling sent from a network device.
  • the first information is used to indicate one or a combination of the following information:
  • the first time unit a second time unit, the second time unit including the time domain position of the first direct connection transmission time-frequency resource; a first offset value associated with the second time unit, and The second offset value associated with the first time unit; the third offset value associated with the second time unit; and the set of time units for which channel monitoring needs to be performed is an empty set.
  • a communication device including:
  • processor ; memory for storing processor-executable instructions;
  • the processor is configured to execute the first aspect or the communication method described in any implementation manner of the first aspect.
  • a non-transitory computer-readable storage medium When instructions in the storage medium are executed by a processor, a user equipment can execute the first aspect or any one of the first aspects.
  • the technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: when the user equipment needs to perform re-evaluation or pre-preemption judgment, determine the time unit set for which channel monitoring needs to be performed, and according to the direct-connected channel monitoring result on the time unit set , perform re-evaluation or pre-preemption judgment, realize channel monitoring for re-evaluation or pre-preemption, and realize communication energy saving in the case of partial monitoring.
  • Fig. 1 is a schematic diagram of a communication system according to an exemplary embodiment.
  • Fig. 2 is a flow chart of a communication method according to an exemplary embodiment.
  • Fig. 3 is a flow chart of a communication method according to an exemplary embodiment.
  • Fig. 4 is a flow chart of a communication method according to an exemplary embodiment.
  • Fig. 5 is a flowchart of a communication method according to an exemplary embodiment.
  • Fig. 6 is a flowchart of a communication method according to an exemplary embodiment.
  • Fig. 7 is a flow chart of a communication method according to an exemplary embodiment.
  • FIG. 8 is a schematic diagram of time slot locations for re-evaluation or preemption judgment based on a channel monitoring mechanism according to an exemplary embodiment of the present disclosure.
  • Fig. 9 is a block diagram of an apparatus according to an exemplary embodiment.
  • Fig. 10 is a block diagram of an apparatus for communication according to an exemplary embodiment.
  • the wireless communication system includes user equipment (User Equipment, UE) and network equipment.
  • the user equipment is connected to the network equipment through wireless resources, and transmits and receives data.
  • the wireless communication system shown in FIG. 1 is only a schematic illustration, and the wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices, etc. Not shown in Figure 1.
  • the embodiments of the present disclosure do not limit the number of network devices and the number of user devices included in the wireless communication system.
  • the wireless communication system is a network that provides a wireless communication function.
  • Wireless communication systems can use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA) , frequency division multiple access (frequency division multiple access, FDMA), orthogonal frequency division multiple access (orthogonal frequency-division multiple access, OFDMA), single carrier frequency division multiple access (single Carrier FDMA, SC-FDMA), carrier sense Carrier Sense Multiple Access with Collision Avoidance.
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • single carrier frequency division multiple access single Carrier FDMA, SC-FDMA
  • carrier sense Carrier Sense Multiple Access with Collision Avoidance CDMA
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • OFDMA orthogonal
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called a new wireless network ( New Radio, NR).
  • 2G International: generation
  • 3G network 4G network or future evolution network, such as 5G network
  • 5G network can also be called a new wireless network ( New Radio, NR).
  • New Radio New Radio
  • the present disclosure will sometimes refer to a wireless communication network simply as a network.
  • the wireless access network equipment may be: a base station, an evolved node B (base station), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay A node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc., can also be a gNB in an NR system, or can also be a component or part of a device that constitutes a base station Wait.
  • the network device may also be an in-vehicle device. It should be understood that, in the embodiments of the present disclosure, the specific technology and specific device form adopted by the network device are not limited.
  • the user equipment involved in the present disclosure may also be referred to as terminal equipment, terminal, mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc.
  • the terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, or the like.
  • some examples of terminals are: Smartphone (Mobile Phone), Pocket Personal Computer (PPC), PDA, Personal Digital Assistant (PDA), notebook computer, tablet computer, wearable device, or Vehicle equipment, etc.
  • the terminal device may also be an in-vehicle device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal.
  • Energy saving of user equipment has become a hot research topic in wireless communication technology.
  • energy saving is achieved by reducing the time during which the user equipment performs channel monitoring, for example, the user equipment performs channel monitoring in part of the time.
  • LTE-V2X in R14 supports partial monitoring resource selection, which defines the channel monitoring conditions that need to be met for partial monitoring resource selection.
  • the current Rel-16Mode2 user equipment needs to keep channel monitoring for resource selection.
  • resource selection is triggered, a resource selection window and a candidate resource set are determined, and candidate resources that are expected to have strong interference are removed from the resource selection window according to the channel monitoring result, and random selection is performed from the remaining candidate resource sets.
  • the current sidelink resource selection in R16 supports preemption and re-evaluation mechanisms, which also depend on user monitoring.
  • a user equipment performing partial monitoring supports both preeemption and/or re-evaluation mechanisms, is it necessary to perform channel monitoring for preemption and/or re-evaluation operations in addition to partial monitoring for resource selection, and if so , what kind of channel monitoring conditions should be satisfied is a problem that needs to be solved.
  • An embodiment of the present disclosure provides a communication method. For a user equipment that has performed partial monitoring in resource selection, when it is determined that re-evaluation or preemption judgment is required for the selected resource, channel monitoring is performed, and according to the channel monitoring result, the channel monitoring is performed. The selected resources are judged by re-evaluation or preemption.
  • Fig. 2 is a flowchart of a communication method according to an exemplary embodiment. As shown in Fig. 2 , the communication method is used in a user equipment and includes the following steps.
  • step S11 a set of time units for which channel monitoring needs to be performed is determined.
  • the user equipment may be determined that the user equipment needs to perform re-evaluation or preemption judgment, and determine the time unit set that needs to perform channel monitoring.
  • the time unit set includes one or more time units.
  • the time unit can be understood as the time domain location.
  • time unit involved in the embodiments of the present disclosure may be a physical time unit or a logical time unit; Frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols (symbol), etc.
  • the time unit involved in the embodiment of the present disclosure may also be a sequence number corresponding to the time unit containing time-frequency resources in a specific direct connection resource pool arranged in time sequence and numbered.
  • the direct connection transmission time-frequency resource for which the user equipment performs re-evaluation or preemption judgment may be referred to as the first direct connection transmission time-frequency resource.
  • the time domain position where the user equipment performs re-evaluation or preemption judgment on the selected first direct-connection transmission time-frequency resource is called a first time unit.
  • the time domain position of the first direct transmission time-frequency resource is referred to as a second time unit.
  • the user equipment may determine a set of time units for which channel monitoring needs to be performed in response to determining that the first direct-connection transmission time-frequency resource needs to be re-evaluated or pre-preempted in the first time unit.
  • step S12 re-evaluation or preemption judgment is performed on the first direct-connection transmission time-frequency resource according to the direct-connection channel monitoring result on the determined time unit set.
  • the user equipment performs direct channel monitoring on the set of time units that need to perform channel monitoring, excludes the candidate resource set according to the direct channel monitoring result, and performs re-evaluation or preemption according to the resource exclusion result judge.
  • a set of time units to be monitored for re-evaluation or preemption judgment may be determined according to the second time unit.
  • Fig. 3 is a flowchart of a communication method according to an exemplary embodiment. As shown in Fig. 3 , the communication method is used in a user equipment and includes the following steps.
  • step S21 according to the second time unit, a set of time units for which channel monitoring needs to be performed is determined.
  • the second time unit includes the time domain position of the first direct transmission time-frequency resource, and the second time unit is after the first time unit.
  • the first time unit is a time domain position where the user equipment performs re-evaluation or preemption judgment on the selected first direct-connection transmission time-frequency resource.
  • the user equipment performs re-evaluation or preemption judgment on the selected first direct transmission time-frequency resource in time unit n, and the first direct transmission time-frequency resource is located in time unit m, then m is greater than n.
  • the user equipment may determine, according to the time domain position (second time unit) of the first direct-connected transmission time-frequency resource, the set of time units that need to monitor for re-evaluation or preemption judgment.
  • the user equipment excludes the candidate resource set according to the direct connection channel monitoring result on the time unit set for which channel monitoring needs to be performed, and performs re-evaluation or preemption judgment according to the resource exclusion result.
  • the candidate resource set after resource exclusion does not include the first direct transmission time-frequency resource, report the first time-frequency resource re-evaluation to the upper layer, and the higher layer may The transmission on the first time-frequency resource will be cancelled and the resource selection will be performed again.
  • the upper layer may cancel the transmission on the first time-frequency resource and perform resource selection again.
  • the set of time units to be monitored for re-evaluation or preemption judgment may be determined according to the first time unit and the second time unit.
  • Fig. 4 is a flow chart of a communication method according to an exemplary embodiment. As shown in Fig. 4 , the communication method is used in a user equipment and includes the following steps.
  • step S31 according to the first time unit and the second time unit, a set of time units for which channel monitoring needs to be performed is determined.
  • the set of time units that need to perform channel monitoring according to the first time unit and the second time unit it may be based on the processing capability of the user equipment for resource selection, and/or the user equipment used for direct connection transmission.
  • the periodic or aperiodic time-frequency resource determines an offset value associated with the first time unit and/or the second time unit, and determines a set of time units for which channel monitoring needs to be performed based on the offset value.
  • the first offset value associated with the second time unit may be set, or the first offset value associated with the first time unit may be set.
  • Two offset values Based on the first time unit, the first offset value, the second time unit, and the second offset value, a set of time units for which channel monitoring needs to be performed is determined.
  • Fig. 5 is a flowchart of a communication method according to an exemplary embodiment. As shown in Fig. 5 , the communication method is used in a user equipment and includes the following steps.
  • step S41 based on the first time unit, the first offset value, the second time unit, and the second offset value, a set of time units for which channel monitoring needs to be performed is determined.
  • the first offset value associated with the second time unit is a fixed value; or, the first offset value associated with the second time unit is a predefined default value; or, the first offset value associated with the second time unit The associated first offset value is determined based on downlink control signaling sent from the network device.
  • the fixed value may be determined based on the maximum time difference between the reserved aperiodic direct connection transmission time-frequency resources.
  • the second offset value associated with the first time unit is a predefined default value; or, the first offset value associated with the first time unit is determined based on the communication capability of the user equipment.
  • the second offset value associated with the first time unit can be understood as the processing time of the user equipment, which can be specified by the protocol, or depends on the user's capability; for example, the value of the second offset value can be determined by 3GPP Given in Table 8.1.4-1 of TS 38.214 v16.3.0.
  • the set of time units required for channel monitoring includes time units belonging to between m-Ta and n-Tb.
  • m is the second time unit
  • n is the first time unit
  • Ta is the first offset value associated with the second time unit
  • Tb is the second offset value associated with the first time unit.
  • the first offset value is a fixed value; or, the first offset value is a predefined default value; or, the first offset value is determined based on downlink control signaling sent from the network device.
  • the fixed value when the first offset value is a fixed value, the fixed value may be determined based on the maximum time difference between the reserved aperiodic direct connection transmission time-frequency resources.
  • the first offset value is smaller than the difference between the second time unit and the third time unit.
  • the third time unit is a time domain position for resource selection when the user equipment selects the first direct transmission time-frequency resource.
  • Ta in response to the user equipment performing re-evaluation, assuming that the user equipment performs resource selection at time unit x and selects the first time-frequency resource at time unit n, Ta should be less than m-x.
  • the first offset value is smaller than the difference between the second time unit and the third time unit.
  • the third time unit is the time domain position where the user equipment performs the second direct connection transmission
  • the second direct connection transmission reserves the first direct connection transmission time and frequency resources.
  • the second direct connection transmission reserves the time-frequency resources of the first direct connection transmission in the time unit m, then Ta should be less than m-x.
  • a third offset value associated with the second time unit may be set. Based on the second time unit and the third offset value, a set of time units for which channel monitoring needs to be performed is determined.
  • the third offset value is determined based on the periodic time-frequency resource reservation period value of the user equipment.
  • the third offset value may be a period value for the user equipment to perform periodic time-frequency resource reservation, or the third offset value may also be an integer multiple of the period value for the user equipment to perform periodic time-frequency resource reservation .
  • the magnitude of the third offset value is less than or equal to the set duration threshold.
  • the set duration threshold may be specified by a protocol, or may be pre-configured, or may be determined based on downlink signaling sent from a network device.
  • Fig. 6 is a flow chart of a communication method according to an exemplary embodiment. As shown in Fig. 6 , the communication method is used in a user equipment and includes the following steps.
  • step S51 based on the second time unit and the third offset value, a set of time units for which channel monitoring needs to be performed is determined.
  • the set of time units required to perform channel monitoring in this embodiment of the present disclosure includes a second time unit and a time unit corresponding to a difference between a third offset value, where the third offset value is based on the periodic time of the user equipment.
  • the frequency resource reservation period value is determined.
  • the third offset value may be a periodic time-frequency resource reservation period value of the user equipment, or may be an integer multiple of the periodic time-frequency resource reservation period value of the user equipment.
  • the set of time units that need to perform channel monitoring includes time units m-Tp.
  • Tp is a period value for the user equipment to perform periodic time-frequency resource reservation or an integer multiple of the period value for the user equipment to perform periodic time-frequency resource reservation.
  • the third offset value may be a periodic time-frequency resource reservation period value of the user equipment.
  • the user equipment obtains a set of periodic resource reservation period values ⁇ T1, . , 1 ⁇ p ⁇ P.
  • the third offset value is an integer multiple of a periodic time-frequency resource reservation period value of the user equipment.
  • the user equipment obtains a set of periodic resource reservation period values ⁇ T1,...,TP ⁇ by pre-configuring or receiving the configuration information of downlink control signaling sent by the network equipment; ,...,T1*K1,T2,...,T2*K2,...,TP,...,TP*KP ⁇ , where K1,...,KP are integers; and Kp*Tp does not exceed min (100ms, m-x).
  • the periodic time-frequency resource reservation period value is determined based on a set of periodic resource reservation period values.
  • the set of period values for the periodic resource reservation is determined based on the pre-configuration message or based on downlink control signaling sent from the network device.
  • a set of periodic resource reservation period values ⁇ T1, . . . , TP ⁇ are obtained by pre-configuring or receiving configuration information of downlink control signaling of the base station.
  • a subset of a group of configurations is obtained through the second pre-configuration or the second configuration information of the downlink control signaling of the base station, and Tp is an element in the subset.
  • the periodic resource reservation is an optional configuration, and only when the resource pool configuration supports periodic resource reservation is applicable. 's implementation.
  • the user equipment can determine, according to the configuration information, how to determine the set of time units for which channel monitoring needs to be performed.
  • the information for indicating the time unit set for determining the time unit set will be referred to as first information.
  • Fig. 7 is a flow chart of a communication method according to an exemplary embodiment. As shown in Fig. 7 , the communication method is used in a user equipment and includes the following steps.
  • step S61 based on the first information, a set of time units for which channel monitoring needs to be performed is determined.
  • the first information is used to indicate the information used to determine the time unit set.
  • the first information is used to indicate one or a combination of the following information:
  • the set of time units that need to perform channel monitoring is an empty set.
  • the first information may be obtained by pre-configuration or by receiving a downlink signaling instruction sent from the base station.
  • the user equipment determines the channel listening time unit according to the Rel16 NR V2x method.
  • the user equipment may randomly select the time unit for monitoring according to the implementation.
  • the user equipment when the user equipment needs to perform re-evaluation or pre-preemption judgment, determine the time unit set for which channel monitoring needs to be performed, and perform re-evaluation or pre-emption according to the direct-connected channel monitoring result on the time unit set.
  • Preemption judgment realizes channel monitoring for re-evaluation or pre-preemption, and realizes communication energy saving in the case of partial monitoring.
  • FIG. 8 is a schematic diagram of time slot locations for re-evaluation or preemption judgment based on a channel monitoring mechanism according to an exemplary embodiment of the present disclosure.
  • the user equipment performs resource selection at time unit x, and the user equipment performs re-evaluation or preemption judgment on the time-frequency resources selected at time unit m for direct connection transmission at time unit n.
  • m is greater than n, that is, the time unit n is earlier than the time unit m.
  • the first offset value associated with the time unit m is Ta
  • the second offset value associated with the first time unit is Tb.
  • Ta should be less than m-x.
  • the set of time units that need to perform channel monitoring may be the time unit between m-Ta and n-Tb as shown in FIG. 8 .
  • performing channel monitoring on the time unit between m-Ta and n-Tb can reduce the energy consumption of the channel monitoring by the user equipment compared to performing channel monitoring on the time unit between x and n.
  • an embodiment of the present disclosure also provides a communication device.
  • the communication apparatus includes corresponding hardware structures and/or software modules for executing each function.
  • the embodiments of the present disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 9 is a block diagram of a communication device according to an exemplary embodiment.
  • the communication device 100 includes a processing unit 101 .
  • the communication apparatus 100 is applied to user equipment.
  • the processing unit 101 is configured to, in response to the user equipment needing to perform re-evaluation or pre-preemption judgment on the first direct connection transmission time-frequency resource in the first time unit, determine the time unit set for which channel monitoring needs to be performed, and according to the time unit set The monitoring result of the direct-connected channel is obtained, and the first direct-connection transmission time-frequency resource is re-evaluated or pre-empted.
  • the processing unit 101 determines a set of time units for which channel monitoring needs to be performed according to a second time unit, where the second time unit includes a time domain position of the first direct transmission time-frequency resource.
  • the processing unit 101 determines, according to the first time unit and the second time unit, a set of time units for which channel monitoring needs to be performed.
  • the set of time units includes time units belonging to between m-Ta and n-Tb;
  • m is the second time unit
  • n is the first time unit
  • Ta is the first offset value associated with the second time unit
  • Tb is the second offset value associated with the first time unit
  • the first offset value is a fixed value; or the first offset value is a predefined default value; or the first offset value is determined based on downlink control signaling sent from the network device.
  • the first offset value is a fixed value
  • the fixed value is a maximum time difference between the reserved aperiodic direct connection transmission time-frequency resources.
  • the second offset value is a predefined default value; or, the first offset value is determined based on the communication capability of the user equipment.
  • the first offset value is smaller than the difference between the second time unit and the third time unit
  • the third time unit is the time domain position where the user equipment selects the time-frequency resource for the first direct connection transmission; or, the third time unit is the time domain position where the user equipment performs the second direct connection transmission, and the second direct connection transmission
  • the first direct connection transmission time-frequency resource is reserved.
  • the time unit set includes a second time unit and a time unit corresponding to a difference between a third offset value, where the third offset value is determined based on a periodic time-frequency resource reservation period value of the user equipment.
  • the third offset value is a period value of the periodic time-frequency resource reservation of the user equipment, or an integer multiple of the period value of the periodic time-frequency resource reservation of the user equipment.
  • the periodic time-frequency resource reservation period value is determined based on a set of periodic resource reservation period values.
  • the set of period values for the periodic resource reservation is determined based on the pre-configuration message or based on downlink control signaling sent from the network device.
  • the processing unit 101 determines, based on the first information, a set of time units for which channel monitoring needs to be performed, and the first information is used to indicate information for determining the set of time units.
  • the first information is determined based on a pre-configuration message or determined based on downlink control signaling sent from a network device.
  • the first information is used to indicate one or a combination of the following information:
  • a first time unit a second time unit, where the second time unit includes the time domain position of the first direct transmission time-frequency resource; the first offset value associated with the second time unit, and the first time unit associated with the first time unit; Two offset values; a third offset value associated with the second time unit; and the set of time units for which channel monitoring needs to be performed is an empty set.
  • FIG. 10 is a block diagram of an apparatus 200 for communication according to an exemplary embodiment.
  • apparatus 200 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • apparatus 200 may include one or more of the following components: processing component 202, memory 204, power component 206, multimedia component 208, audio component 210, input/output (I/O) interface 212, sensor component 214, and Communication component 216 .
  • the processing component 202 generally controls the overall operation of the device 200, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 202 may include one or more processors 220 to execute instructions to perform all or some of the steps of the methods described above.
  • processing component 202 may include one or more modules that facilitate interaction between processing component 202 and other components.
  • processing component 202 may include a multimedia module to facilitate interaction between multimedia component 208 and processing component 202.
  • Memory 204 is configured to store various types of data to support operation at device 200 . Examples of such data include instructions for any application or method operating on the device 200, contact data, phonebook data, messages, pictures, videos, and the like. Memory 204 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power components 206 provide power to various components of device 200 .
  • Power components 206 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to device 200 .
  • the multimedia component 208 includes a screen that provides an output interface between the device 200 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action.
  • the multimedia component 208 includes a front-facing camera and/or a rear-facing camera. When the apparatus 200 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 210 is configured to output and/or input audio signals.
  • audio component 210 includes a microphone (MIC) that is configured to receive external audio signals when device 200 is in operating modes, such as call mode, recording mode, and voice recognition mode.
  • the received audio signal may be further stored in memory 204 or transmitted via communication component 216 .
  • the audio component 210 also includes a speaker for outputting audio signals.
  • the I/O interface 212 provides an interface between the processing component 202 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor assembly 214 includes one or more sensors for providing status assessments of various aspects of device 200 .
  • the sensor assembly 214 can detect the open/closed state of the device 200, the relative positioning of components, such as the display and keypad of the device 200, and the sensor assembly 214 can also detect a change in the position of the device 200 or a component of the device 200 , the presence or absence of user contact with the device 200 , the orientation or acceleration/deceleration of the device 200 and the temperature change of the device 200 .
  • Sensor assembly 214 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 214 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 216 is configured to facilitate wired or wireless communication between apparatus 200 and other devices.
  • Device 200 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 216 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 216 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 200 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • non-transitory computer-readable storage medium including instructions, such as a memory 204 including instructions, executable by the processor 220 of the apparatus 200 to perform the method described above.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • first, second, etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish the same type of information from one another, and do not imply a particular order or level of importance. In fact, the expressions “first”, “second” etc. are used completely interchangeably.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information, without departing from the scope of the present disclosure.

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Abstract

本公开是关于一种通信方法、装置及存储介质。通信方法，应用于用户设备，包括：响应于用户设备需要在第一时间单元对第一直连传输时间频率资源进行重新评估或预抢占判断，确定需要进行信道监听的时间单元集合；根据所述时间单元集合上的直连信道监听结果，对所述第一直连传输时间频率资源进行重新评估或预抢占判断。通过本公开实现了对重新评估或预抢占进行信道监听，并在部分监听的情况下实现通信节能。

Description

一种通信方法、装置及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种通信方法、装置及存储介质。
背景技术
新一代的新型互联网应用的不断涌现对于无线通信技术提出了更高的要求，驱使无线通信技术的不断演进以满足应用的需求。设备节能是无线通信技术研究的多个热点之一。
R17新无线(New Radio，NR)直连通信(sidelink)中进行Sidelink节能的一种有效的方法是减少用户设备(User Equipment，UE)进行信道监听的时间，用户设备在部分时间内进行信道监听。R14中的LTE-V2X支持部分监听的资源选择，定义了部分监听的资源选择需要满足的信道监听的条件。
当前R16中sidelink资源选择支持预抢占(preemption)和重评估(re-evaluation)机制，同样依赖于用户监听。用户设备在所选择的时频资源进行直连传输之前，需要根据之前监听的结果进行判断是否所选择的资源是否还适合传输，如果不适合，需要进行资源重新选择。当所选择的时频资源并未被其他传输所预留的时候，称为re-evaluation。当所选择的时频资源已经被其他传输所预留的时候，称为preemption。
然而，preemption和reevaluation的机制是Rel16中新引入的机制，如何针对支持preemption和/或reevaluation的用户设备节能，也是需要研究的热点之一。
发明内容
为克服相关技术中存在的问题，本公开提供一种通信方法、装置及存储介质。
根据本公开实施例的第一方面，提供一种通信方法，应用于用户设备，包括：
响应于用户设备需要在第一时间单元对第一直连传输时间频率资源进行重新评估或预抢占判断，确定需要进行信道监听的时间单元集合；根据所述时间单元集合上的直连信道监听结果，对所述第一直连传输时间频率资源进行重新评估或预抢占判断。
一种实施方式中，所述确定需要进行信道监听的时间单元集合，包括：根据第二时间单元，确定需要进行信道监听的时间单元集合，其中，所述第二时间单元包括所述第一直连传输时间频率资源的时域位置。
一种实施方式中，所述根据第二时间单元，确定需要进行信道监听的时间单元集合，包括：根据所述第一时间单元和所述第二时间单元，确定需要进行信道监听的时间单元集合。
一种实施方式中，所述时间单元集合包含属于m-Ta和n-Tb之间的时间单元；其中， 所述m为所述第二时间单元，所述n为所述第一时间单元，所述Ta为与所述第二时间单元关联的第一偏移值，所述Tb为与所述第一时间单元关联的第二偏移值。
一种实施方式中，所述第一偏移值为固定值；或者，所述第一偏移值为预定义的默认值；或者，所述第一偏移值是基于来自网络设备发送的下行控制信令确定的。
一种实施方式中，所述第一偏移值为固定值，所述固定值为预留的非周期性直连传输时频资源之间的最大时间差。
一种实施方式中，所述第二偏移值为预定义的默认值；或者，所述第一偏移值是基于所述用户设备的通信能力确定。
一种实施方式中，所述第一偏移值小于所述第二时间单元与第三时间单元之间的差值；所述第三时间单元为所述用户设备选择第一直连传输时频资源时进行资源选择的时域位置；或者，所述第三时间单元为所述用户设备进行第二直连传输的时域位置，所述第二直连传输预留了所述第一直连传输时间频率资源。
一种实施方式中，所述时间单元集合包括所述第二时间单元以及第三偏移值之间差值对应的时间单元，所述第三偏移值基于所述用户设备的周期性时频资源预留周期值确定。
一种实施方式中，所述第三偏移值为所述用户设备的周期性时频资源预留周期值，或者所述用户设备的周期性时频资源预留周期值的整数倍。
一种实施方式中，所述周期性时频资源预留周期值基于周期性资源预留的周期值集合确定；所述周期性资源预留的周期值集合基于预配置消息确定或基于来自网络设备发送的下行控制信令确定。
一种实施方式中，所述确定需要进行信道监听的时间单元集合，包括：
基于第一信息，确定需要进行信道监听的时间单元集合，所述第一信息用于指示用于确定所述时间单元集合的信息。
一种实施方式中，所述第一信息基于预配置消息确定或基于来自网络设备发送的下行控制信令确定。
一种实施方式中，所述第一信息用于指示如下信息之一或组合：
所述第一时间单元；第二时间单元，所述第二时间单元包括所述第一直连传输时间频率资源的时域位置；与所述第二时间单元关联的第一偏移值，以及与所述第一时间单元关联的第二偏移值；与所述第二时间单元关联的第三偏移值；以及需要进行信道监听的时间单元集合为空集。
根据本公开实施例第二方面，提供一种通信装置，其特征在于，应用于用户设备，包括：处理单元，被配置为响应于用户设备需要在第一时间单元对第一直连传输时间频率资 源进行重新评估或预抢占判断，确定需要进行信道监听的时间单元集合，并根据所述时间单元集合上的直连信道监听结果，对所述第一直连传输时间频率资源进行重新评估或预抢占判断。
一种实施方式中，所述处理单元根据第二时间单元，确定需要进行信道监听的时间单元集合，其中，所述第二时间单元包括所述第一直连传输时间频率资源的时域位置。
一种实施方式中，所述处理单元根据所述第一时间单元和所述第二时间单元，确定需要进行信道监听的时间单元集合。
一种实施方式中，所述时间单元集合包含属于m-Ta和n-Tb之间的时间单元；
其中，所述m为所述第二时间单元，所述n为所述第一时间单元，所述Ta为与所述第二时间单元关联的第一偏移值，所述Tb为与所述第一时间单元关联的第二偏移值。
一种实施方式中，所述第一偏移值为固定值；或者所述第一偏移值为预定义的默认值；或者，所述第一偏移值是基于来自网络设备发送的下行控制信令确定的。
一种实施方式中，所述第一偏移值为固定值，所述固定值为预留的非周期性直连传输时频资源之间的最大时间差。
一种实施方式中，所述第二偏移值为预定义的默认值；或者，所述第一偏移值是基于所述用户设备的通信能力确定。
一种实施方式中，所述第一偏移值小于所述第二时间单元与第三时间单元之间的差值；
所述第三时间单元为所述用户设备选择第一直连传输时频资源时进行资源选择的时域位置；或者，所述第三时间单元为所述用户设备进行第二直连传输的时域位置，所述第二直连传输预留了所述第一直连传输时间频率资源。
一种实施方式中，所述时间单元集合包括所述第二时间单元以及第三偏移值之间差值对应的时间单元，所述第三偏移值基于所述用户设备的周期性时频资源预留周期值确定。
一种实施方式中，所述第三偏移值为所述用户设备的周期性时频资源预留周期值，或者所述用户设备的周期性时频资源预留周期值的整数倍。
一种实施方式中，所述周期性时频资源预留周期值基于周期性资源预留的周期值集合确定；所述周期性资源预留的周期值集合基于预配置消息确定或基于来自网络设备发送的下行控制信令确定。
一种实施方式中，所述处理单元基于第一信息，确定需要进行信道监听的时间单元集合，所述第一信息用于指示用于确定所述时间单元集合的信息。
一种实施方式中，所述第一信息基于预配置消息确定或基于来自网络设备发送的下行 控制信令确定。
一种实施方式中，所述第一信息用于指示如下信息之一或组合：
所述第一时间单元；第二时间单元，所述第二时间单元包括所述第一直连传输时间频率资源的时域位置；与所述第二时间单元关联的第一偏移值，以及与所述第一时间单元关联的第二偏移值；与所述第二时间单元关联的第三偏移值；以及需要进行信道监听的时间单元集合为空集。
根据本公开实施例第三方面，提供一种通信装置，包括：
处理器；用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为执行第一方面或者第一方面任意一种实施方式中所述的通信方法。
根据本公开实施例第四方面，提供一种非临时性计算机可读存储介质，当所述存储介质中的指令由处理器执行时，使得用户设备能够执行第一方面或者第一方面任意一种实施方式中所述的通信方法。
本公开的实施例提供的技术方案可以包括以下有益效果：在用户设备需要进行重新评估或预抢占判断时，确定需要进行信道监听的时间单元集合，并根据时间单元集合上的直连信道监听结果，进行重新评估或预抢占判断，实现了对重新评估或预抢占进行信道监听，并在部分监听的情况下实现通信节能。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种通信系统示意图。
图2是根据一示例性实施例示出的一种通信方法的流程图。
图3是根据一示例性实施例示出的一种通信方法的流程图。
图4是根据一示例性实施例示出的一种通信方法的流程图。
图5是根据一示例性实施例示出的一种通信方法的流程图。
图6是根据一示例性实施例示出的一种通信方法的流程图。
图7是根据一示例性实施例示出的一种通信方法的流程图。
图8是根据本公开一示例性实施例示出的一种基于信道监听机制进行re-evaluation或preemption判断的时隙位置示意图。
图9是根据一示例性实施例示出的一种装置的框图。
图10是根据一示例性实施例示出的一种用于通信的装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
本公开实施例提供的通信方法可应用于图1所示的无线通信系统中。参阅图1所示，该无线通信系统中包括用户设备(User Equipment，UE)和网络设备。用户设备通过无线资源与网络设备相连接，并进行数据的发送与接收。
可以理解的是，图1所示的无线通信系统仅是进行示意性说明，无线通信系统中还可包括其它网络设备，例如还可以包括核心网设备、无线中继设备和无线回传设备等，在图1中未画出。本公开实施例对该无线通信系统中包括的网络设备数量和用户设备数量不做限定。
进一步可以理解的是，本公开实施例的无线通信系统，是一种提供无线通信功能的网络。无线通信系统可以采用不同的通信技术，例如码分多址(code division multiple access,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络。
进一步的，本公开中涉及的网络设备也可以称为无线接入网设备。该无线接入网设备可以是：基站、演进型基站(evolved node B，基站)、家庭基站、无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为NR系统中的gNB，或者，还可以是构成基站的组件或一部分设备等。当为车联网(V2X)通信系统时，网络设备还可以是车载设备。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。
进一步的，本公开中涉及的用户设备，也可以称为终端设备、终端、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信系统时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
用户设备节能成为无线通信技术研究的热点。相关技术中，通过减少用户设备进行信道监听的时间实现节能，例如用户设备在部分时间内进行信道监听。R14中的LTE-V2X支持部分监听的资源选择，定义了部分监听的资源选择需要满足的信道监听的条件。当前Rel-16Mode2的用户设备需要保持信道监听以进行资源选择。当资源选择被触发时，确定资源选择窗口和候选资源集合，根据信道监听结果在资源选择窗口中去除预计干扰强烈的候选资源，在剩下的候选资源集合中进行随机选择。
当前R16中sidelink资源选择支持preemption和re-evaluation机制，同样依赖于用户监听。当执行部分监听的用户设备同时支持preeemption和/或re-evaluation机制时，在除为资源选择进行的部分监听之外，是否还需要为preemption和/或re-evaluation操作进行信道监听，以及如果需要，应该满足什么样的信道监听条件，是需要解决的问题。
本公开实施例提供一种通信方法，针对在资源选择已进行部分监听的用户设备，在确定需要对所选择的资源进行re-evaluation或者preemption判断时，进行信道监听，并根据信道监听结果，对所选择的资源进行re-evaluation或者preemption判断。
图2是根据一示例性实施例示出的一种通信方法的流程图，如图2所示，通信方法用于用户设备中，包括以下步骤。
在步骤S11中，确定需要进行信道监听的时间单元集合。
本公开实施例中，可以是在确定用户设备需要进行re-evaluation或者preemption判断的情况下，确定需要进行信道监听的时间单元集合。
其中，时间单元集合中包括一个或多个时间单元。其中，时间单元可以理解为是时域位置。
可以理解的是，本公开实施例中涉及的时间单元可能是物理时间单元，也可能是逻辑时间单元；例如单位为秒，毫秒，微秒，帧，子帧，时隙(slot)，正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号(symbol)等。本公开实施例中涉及的时间单元也可以是将含有特定直连资源池中的时频资源的时间单元按照时间顺序进行排列 并编序号后对应的序号。
本公开实施例中，可将用户设备进行re-evaluation或者preemption判断的直连传输时间频率资源称为第一直连传输时间频率资源。将用户设备对所选择的第一直连传输时间频率资源进行re-evaluation或者preemption判断的时域位置称为第一时间单元。将第一直连传输时间频率资源的时域位置称为第二时间单元。
一种实施方式中，用户设备可以在响应于确定需要在第一时间单元对第一直连传输时间频率资源进行重新评估或预抢占判断，确定需要进行信道监听的时间单元集合。
在步骤S12中，根据确定的时间单元集合上的直连信道监听结果，对第一直连传输时间频率资源进行re-evaluation或者preemption判断。
本公开实施例中，用户设备在需要进行信道监听的时间单元集合上进行直连信道监听，并根据直连信道监听结果对候选资源集合进行排除，并根据资源排除的结果进行re-evaluation或preemption判断。
本公开实施例提供的通信方法中，可以根据第二时间单元确定进行re-evaluation或preemption判断所需要监听的时间单元集合。
图3是根据一示例性实施例示出的一种通信方法的流程图，如图3所示，通信方法用于用户设备中，包括以下步骤。
在步骤S21中，根据第二时间单元，确定需要进行信道监听的时间单元集合。
其中，第二时间单元包括第一直连传输时间频率资源的时域位置，第二时间单元在第一时间单元之后。第一时间单元为用户设备对所选择的第一直连传输时间频率资源进行re-evaluation或者preemption判断的时域位置。
例如，用户设备在时间单元n对所选择的第一直连传输时间频率资源进行re-evaluation或preemption判断，且第一直连传输时间频率资源位于时间单元m，则m大于n。
用户设备可以根据第一直连传输时间频率资源的时域位置(第二时间单元)，确定进行re-evaluation或preemption判断所需要监听的时间单元集合。
用户设备根据需要进行信道监听的时间单元集合上的直连信道监听结果对候选资源集合进行排除，并根据资源排除的结果进行re-evaluation或preemption判断。
一示例中，响应于进行re-evaluation，如果进行资源排除后的候选资源集合中不包含所述第一直连传输时间频率资源，向高层报告所述第一时频资源re-evaluation，高层可能会取消在所述第一时频资源上的传输并重新进行资源选择。响应于进行reemption，如果进行资源排除后的候选资源集合中不包含所述第一直连传输时间频率资源，且满足特定的优先级需求的话，向高层报告所述第一时频资源re-emption，高层可能会取消在所述第一时 频资源上的传输并重新进行资源选择。
本公开实施例提供的通信方法中，可以根据第一时间单元和第二时间单元确定进行re-evaluation或preemption判断所需要监听的时间单元集合。
图4是根据一示例性实施例示出的一种通信方法的流程图，如图4所示，通信方法用于用户设备中，包括以下步骤。
在步骤S31中，根据第一时间单元和第二时间单元，确定需要进行信道监听的时间单元集合。
本公开实施例中根据第一时间单元和第二时间单元，确定需要进行信道监听的时间单元集合时，可以基于用户设备进行资源选择的处理能力，和/或用户设备进行直连传输时所采用的周期性或非周期性时频资源确定与第一时间单元和/或第二时间单元相关联的偏移值，并基于该偏移值确定需要进行信道监听的时间单元集合。
一种实施方式中，本公开实施例用户设备采用非周期性直连传输时频资源时，可以设置与第二时间单元关联的第一偏移值，也可以设置于第一时间单元关联的第二偏移值。基于第一时间单元、第一偏移值、第二时间单元以及第二偏移值确定需要进行信道监听的时间单元集合。
图5是根据一示例性实施例示出的一种通信方法的流程图，如图5所示，通信方法用于用户设备中，包括以下步骤。
在步骤S41中，基于第一时间单元、第一偏移值、第二时间单元以及第二偏移值，确定需要进行信道监听的时间单元集合。
一种实施方式中，与第二时间单元关联的第一偏移值为固定值；或者，与第二时间单元关联的第一偏移值为预定义的默认值；或者，与第二时间单元关联的第一偏移值是基于来自网络设备发送的下行控制信令确定的。
本公开实施例中，第一偏移值为固定值时，该固定值可以基于预留的非周期性直连传输时频资源之间的最大时间差确定。
一种实施方式中，与第一时间单元关联的第二偏移值为预定义的默认值；或者，与第一时间单元关联的第一偏移值是基于用户设备的通信能力确定。
其中，与第一时间单元关联的第二偏移值可以理解为是用户设备进的处理时间，可以由协议规定给出，或者取决于用户能力；例如第二偏移值的取值可以由3GPP TS 38.214 v16.3.0中表8.1.4-1给出。
一种实施方式中，本公开实施例提供的需要进行信道监听的时间单元集合包含属于m-Ta和n-Tb之间的时间单元。其中，m为第二时间单元，n为第一时间单元，Ta为与第 二时间单元关联的第一偏移值，Tb为与第一时间单元关联的第二偏移值。
一种实施方式中，第一偏移值为固定值；或者，第一偏移值为预定义的默认值；或者，第一偏移值是基于来自网络设备发送的下行控制信令确定的。
本公开实施例中，第一偏移值为固定值时，该固定值可以基于预留的非周期性直连传输时频资源之间的最大时间差确定。一示例中，Ta为固定值，例如Ta＝MAX_reserve_T。其中，MAX_reserve_T为一个直连传输与其可以预留的非周期性直连传输时频资源之间的最大时间差。例如Rel16 NR V2x中MAX_reserve_T＝31。
一种实施方式中，第一偏移值小于第二时间单元与第三时间单元之间的差值。其中，第三时间单元为用户设备选择第一直连传输时频资源时进行资源选择的时域位置。一示例中，响应于用户设备进行re-evaluation，假设用户设备在时间单元x进行资源选择，并在时间单元n选择了第一时间频率资源，则Ta应小于m-x。
另一种实施方式中，第一偏移值小于第二时间单元与第三时间单元之间的差值。其中，第三时间单元为用户设备进行第二直连传输的时域位置，第二直连传输预留了第一直连传输时间频率资源。响应于用户设备进行preemption，且用户设备在时间单元x进行第二直连传输，第二直连传输预留了在时间单元m的第一直连传输时频资源，则Ta应小于m-x。
一种实施方式中，本公开实施例终端采用周期性直连传输时频资源时，可以设置与第二时间单元关联的第三偏移值。基于第二时间单元以及第三偏移值确定需要进行信道监听的时间单元集合。其中，第三偏移值基于用户设备的周期性时频资源预留周期值确定。一示例中，第三偏移值可以是用户设备进行周期性时频资源预留的周期值，或者第三偏移值也可以是用户设备进行周期性时频资源预留的周期值的整数倍。
本公开实施例中，第三偏移值的大小小于或等于设定的时长阈值。其中，设定的时长阈值可以是协议规定的，或者也可以是预配置的，或者也可以是基于来自网络设备发送的下行信令所确定的。
图6是根据一示例性实施例示出的一种通信方法的流程图，如图6所示，通信方法用于用户设备中，包括以下步骤。
在步骤S51中，基于第二时间单元以及第三偏移值，确定需要进行信道监听的时间单元集合。
一种实施方式中，本公开实施例需要进行信道监听的时间单元集合包括第二时间单元以及第三偏移值之间差值对应的时间单元，第三偏移值基于用户设备的周期性时频资源预留周期值确定。
本公开实施例中，第三偏移值可以是用户设备的周期性时频资源预留周期值，也可以 是用户设备的周期性时频资源预留周期值的整数倍。
一示例中，需要进行信道监听的时间单元集合包括时间单元m-Tp。其中，Tp为用户设备进行周期性时频资源预留的周期值或者是用户设备进行周期性时频资源预留的周期值的整数倍。
一示例中，第三偏移值可以是用户设备的周期性时频资源预留周期值。用户设备通过预配置或者接收网络设备发送的下行控制信令的配置信息得到一组周期性资源预留的周期值{T1，……,TP}，则Tp为所述一组配置值中的元素，1≤p≤P。
另一示例中，第三偏移值为用户设备的周期性时频资源预留周期值的整数倍。例如，用户设备通过预配置或者接收网络设备发送的下行控制信令的配置信息得到一组周期性资源预留的周期值{T1，……,TP}；，则第三偏移值为{T1，……，T1*K1,T2,……，T2*K2，……,TP,……，TP*KP}，其中，K1,……,KP为整数；，且满足Kp*Tp不超过min(100ms，m-x)。
另一种实施方式中，周期性时频资源预留周期值基于周期性资源预留的周期值集合确定。周期性资源预留的周期值集合基于预配置消息确定或基于来自网络设备发送的下行控制信令确定。
一示例中，通过预配置或者接收基站下行控制信令的配置信息得到一组周期性资源预留的周期值{T1，……,TP}。通过第二预配置或基站下行控制信令的第二配置信息得到一组配置之中的一个子集，Tp为子集中的元素。
可以理解的是，周期性资源预留为可选配置，当资源池配置支持周期性资源预留时才适用上述基于第二时间单元以及第三偏移值，确定需要进行信道监听的时间单元集合的实施方案。
本公开实施例提供的通信方法中，用户设备可以根据配置信息判断如何确定需要进行信道监听的时间单元集合。以下将用于指示用于确定时间单元集合的信息称为第一信息。
图7是根据一示例性实施例示出的一种通信方法的流程图，如图7所示，通信方法用于用户设备中，包括以下步骤。
在步骤S61中，基于第一信息，确定需要进行信道监听的时间单元集合。
其中，第一信息用于指示用于确定时间单元集合的信息。
本公开实施例中，第一信息用于指示如下信息之一或组合：
第一时间单元；第二时间单元；与第二时间单元关联的第一偏移值，以及与第一时间单元关联的第二偏移值；与第二时间单元关联的第三偏移值；以及需要进行信道监听的时间单元集合为空集。
一示例中，第一信息可以通过预配置或者接收来自基站发送的下行信令指示得到。
本公开实施例中，当第一信息指示了上述实施例中用于确定时间单元集合的信息时，可以参照上述实施方式中涉及的确定需要进行信道监听的时间单元集合的方式。本公开实施例中，当第一信息未指示上述实施例中用于确定时间单元集合的信息时，用户设备按照Rel16 NR V2x的方法进行信道监听时间单元的确定。
一种实施方式中，当第一信息指示了需要进行信道监听的时间单元集合为空集时，用户设备可以根据实现随意选择监听的时间单元。
本公开实施例提供的通信方法，在用户设备需要进行重新评估或预抢占判断时，确定需要进行信道监听的时间单元集合，并根据时间单元集合上的直连信道监听结果，进行重新评估或预抢占判断，实现了对重新评估或预抢占进行信道监听，并在部分监听的情况下实现通信节能。
本公开实施例以下结合实际应用对上述实施例涉及的通信方法进行说明。图8是根据本公开一示例性实施例示出的一种基于信道监听机制进行re-evaluation或preemption判断的时隙位置示意图。参阅图8所示，用户设备在时间单元x进行资源选择，并且用户设备在时间单元n对在时间单元m处所选择的直连传输时间频率资源进行re-evaluation或preemption判断。参阅图8所示，m大于n，即时间单元n早于时间单元m。其中，假设用户设备采用非周期性直连传输时频资源时，与时间单元m关联的第一偏移值为Ta，与第一时间单元关联的第二偏移值为Tb。用户设备在时间单元x进行资源选择或进行第二直连传输，则Ta应小于m-x。基于第一时间单元、第一偏移值、第二时间单元以及第二偏移值确定需要进行信道监听的时间单元集合可以为如图8中属于m-Ta和n-Tb之间的时间单元。其中，对m-Ta和n-Tb之间的时间单元进行信道监听，相比对x和n之间的时间单元进行信道监听可以降低用户设备进行信道监听的能耗。
基于相同的构思，本公开实施例还提供一种通信装置。
可以理解的是，本公开实施例提供的通信装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图9是根据一示例性实施例示出的一种通信装置框图。参照图9，该通信装置100包括处理单元101。通信装置100应用于用户设备。
处理单元101，被配置为响应于用户设备需要在第一时间单元对第一直连传输时间频率资源进行重新评估或预抢占判断，确定需要进行信道监听的时间单元集合，并根据时间单元集合上的直连信道监听结果，对第一直连传输时间频率资源进行重新评估或预抢占判断。
一种实施方式中，处理单元101根据第二时间单元，确定需要进行信道监听的时间单元集合，其中，第二时间单元包括第一直连传输时间频率资源的时域位置。
一种实施方式中，处理单元101根据第一时间单元和第二时间单元，确定需要进行信道监听的时间单元集合。
一种实施方式中，时间单元集合包含属于m-Ta和n-Tb之间的时间单元；
其中，m为第二时间单元，n为第一时间单元，Ta为与第二时间单元关联的第一偏移值，Tb为与第一时间单元关联的第二偏移值。
一种实施方式中，第一偏移值为固定值；或者第一偏移值为预定义的默认值；或者，第一偏移值是基于来自网络设备发送的下行控制信令确定的。
一种实施方式中，第一偏移值为固定值，固定值为预留的非周期性直连传输时频资源之间的最大时间差。
一种实施方式中，第二偏移值为预定义的默认值；或者，第一偏移值是基于用户设备的通信能力确定。
一种实施方式中，第一偏移值小于第二时间单元与第三时间单元之间的差值；
第三时间单元为用户设备选择第一直连传输时频资源时进行资源选择的时域位置；或者，第三时间单元为用户设备进行第二直连传输的时域位置，第二直连传输预留了第一直连传输时间频率资源。
一种实施方式中，时间单元集合包括第二时间单元以及第三偏移值之间差值对应的时间单元，第三偏移值基于用户设备的周期性时频资源预留周期值确定。
一种实施方式中，第三偏移值为用户设备的周期性时频资源预留周期值，或者用户设备的周期性时频资源预留周期值的整数倍。
一种实施方式中，周期性时频资源预留周期值基于周期性资源预留的周期值集合确定。周期性资源预留的周期值集合基于预配置消息确定或基于来自网络设备发送的下行控制信令确定。
一种实施方式中，处理单元101基于第一信息，确定需要进行信道监听的时间单元集合，第一信息用于指示用于确定时间单元集合的信息。
一种实施方式中，第一信息基于预配置消息确定或基于来自网络设备发送的下行控制 信令确定。
一种实施方式中，第一信息用于指示如下信息之一或组合：
第一时间单元；第二时间单元，第二时间单元包括第一直连传输时间频率资源的时域位置；与第二时间单元关联的第一偏移值，以及与第一时间单元关联的第二偏移值；与第二时间单元关联的第三偏移值；以及需要进行信道监听的时间单元集合为空集。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图10是根据一示例性实施例示出的一种用于通信的装置200的框图。例如，装置200可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图10，装置200可以包括以下一个或多个组件：处理组件202，存储器204，电力组件206，多媒体组件208，音频组件210，输入/输出(I/O)接口212，传感器组件214，以及通信组件216。
处理组件202通常控制装置200的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件202可以包括一个或多个处理器220来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件202可以包括一个或多个模块，便于处理组件202和其他组件之间的交互。例如，处理组件202可以包括多媒体模块，以方便多媒体组件208和处理组件202之间的交互。
存储器204被配置为存储各种类型的数据以支持在装置200的操作。这些数据的示例包括用于在装置200上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器204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，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件206为装置200的各种组件提供电力。电力组件206可以包括电源管理系统，一个或多个电源，及其他与为装置200生成、管理和分配电力相关联的组件。
多媒体组件208包括在所述装置200和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中， 多媒体组件208包括一个前置摄像头和/或后置摄像头。当装置200处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件210被配置为输出和/或输入音频信号。例如，音频组件210包括一个麦克风(MIC)，当装置200处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器204或经由通信组件216发送。在一些实施例中，音频组件210还包括一个扬声器，用于输出音频信号。
I/O接口212为处理组件202和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件214包括一个或多个传感器，用于为装置200提供各个方面的状态评估。例如，传感器组件214可以检测到装置200的打开/关闭状态，组件的相对定位，例如所述组件为装置200的显示器和小键盘，传感器组件214还可以检测装置200或装置200一个组件的位置改变，用户与装置200接触的存在或不存在，装置200方位或加速/减速和装置200的温度变化。传感器组件214可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件214还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件214还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件216被配置为便于装置200和其他设备之间有线或无线方式的通信。装置200可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件216经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件216还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置200可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器204，上述指令可由装置200的处理器220执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开，并不表示特定的顺序或者重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (30)

  1. 一种通信方法，其特征在于，应用于用户设备，包括：
    响应于用户设备需要在第一时间单元对第一直连传输时间频率资源进行重新评估或预抢占判断，确定需要进行信道监听的时间单元集合；
    根据所述时间单元集合上的直连信道监听结果，对所述第一直连传输时间频率资源进行重新评估或预抢占判断。
  2. 根据权利要求1所述的通信方法，其特征在于，所述确定需要进行信道监听的时间单元集合，包括：
    根据第二时间单元，确定需要进行信道监听的时间单元集合，其中，所述第二时间单元包括所述第一直连传输时间频率资源的时域位置。
  3. 根据权利要求2所述的通信方法，其特征在于，所述根据第二时间单元，确定需要进行信道监听的时间单元集合，包括：
    根据所述第一时间单元和所述第二时间单元，确定需要进行信道监听的时间单元集合。
  4. 根据权利要求3所述的通信方法，其特征在于，所述时间单元集合包含属于m-Ta和n-Tb之间的时间单元；
    其中，所述m为所述第二时间单元，所述n为所述第一时间单元，所述Ta为与所述第二时间单元关联的第一偏移值，所述Tb为与所述第一时间单元关联的第二偏移值。
  5. 根据权利要求4所述的通信方法，其特征在于，
    所述第一偏移值为固定值；或者
    所述第一偏移值为预定义的默认值；或者，
    所述第一偏移值是基于来自网络设备发送的下行控制信令确定的。
  6. 根据权利要求5所述的通信方法，其特征在于，所述第一偏移值为固定值，所述固定值为预留的非周期性直连传输时频资源之间的最大时间差。
  7. 根据权利要求4所述的通信方法，其特征在于，
    所述第二偏移值为预定义的默认值；或者，
    所述第一偏移值是基于所述用户设备的通信能力确定。
  8. 根据权利要求4所述的通信方法，其特征在于，所述第一偏移值小于所述第二时间单元与第三时间单元之间的差值；
    所述第三时间单元为所述用户设备选择第一直连传输时频资源时进行资源选择的时 域位置；或者，
    所述第三时间单元为所述用户设备进行第二直连传输的时域位置，所述第二直连传输预留了所述第一直连传输时间频率资源。
  9. 根据权利要求2所述的通信方法，其特征在于，所述时间单元集合包括所述第二时间单元以及第三偏移值之间差值对应的时间单元，所述第三偏移值基于所述用户设备的周期性时频资源预留周期值确定。
  10. 根据权利要求9所述的通信方法，其特征在于，所述第三偏移值为所述用户设备的周期性时频资源预留周期值，或者所述用户设备的周期性时频资源预留周期值的整数倍。
  11. 根据权利要求10所述的通信方法，其特征在于，所述周期性时频资源预留周期值基于周期性资源预留的周期值集合确定；
    所述周期性资源预留的周期值集合基于预配置消息确定或基于来自网络设备发送的下行控制信令确定。
  12. 根据权利要求1所述的通信方法，其特征在于，所述确定需要进行信道监听的时间单元集合，包括：
    基于第一信息，确定需要进行信道监听的时间单元集合，所述第一信息用于指示用于确定所述时间单元集合的信息。
  13. 根据权利要求12所述的通信方法，其特征在于，所述第一信息基于预配置消息确定或基于来自网络设备发送的下行控制信令确定。
  14. 根据权利要求12所述的通信方法，其特征在于，所述第一信息用于指示如下信息之一或组合：
    所述第一时间单元；
    第二时间单元，所述第二时间单元包括所述第一直连传输时间频率资源的时域位置；
    与所述第二时间单元关联的第一偏移值，以及与所述第一时间单元关联的第二偏移值；
    与所述第二时间单元关联的第三偏移值；以及
    需要进行信道监听的时间单元集合为空集。
  15. 一种通信装置，其特征在于，应用于用户设备，包括：
    处理单元，被配置为响应于用户设备需要在第一时间单元对第一直连传输时间频率资源进行重新评估或预抢占判断，确定需要进行信道监听的时间单元集合，并
    根据所述时间单元集合上的直连信道监听结果，对所述第一直连传输时间频率资源进行重新评估或预抢占判断。
  16. 根据权利要求15所述的通信装置，其特征在于，所述处理单元根据第二时间单元，确定需要进行信道监听的时间单元集合，其中，所述第二时间单元包括所述第一直连传输时间频率资源的时域位置。
  17. 根据权利要求16所述的通信装置，其特征在于，所述处理单元根据所述第一时间单元和所述第二时间单元，确定需要进行信道监听的时间单元集合。
  18. 根据权利要求17所述的通信装置，其特征在于，所述时间单元集合包含属于m-Ta和n-Tb之间的时间单元；
    其中，所述m为所述第二时间单元，所述n为所述第一时间单元，所述Ta为与所述第二时间单元关联的第一偏移值，所述Tb为与所述第一时间单元关联的第二偏移值。
  19. 根据权利要求18所述的通信装置，其特征在于，
    所述第一偏移值为固定值；或者
    所述第一偏移值为预定义的默认值；或者，
    所述第一偏移值是基于来自网络设备发送的下行控制信令确定的。
  20. 根据权利要求19所述的通信装置，其特征在于，所述第一偏移值为固定值，所述固定值为预留的非周期性直连传输时频资源之间的最大时间差。
  21. 根据权利要求18所述的通信装置，其特征在于，
    所述第二偏移值为预定义的默认值；或者，
    所述第一偏移值是基于所述用户设备的通信能力确定。
  22. 根据权利要求18所述的通信装置，其特征在于，所述第一偏移值小于所述第二时间单元与第三时间单元之间的差值；
    所述第三时间单元为所述用户设备选择第一直连传输时频资源时进行资源选择的时域位置；或者，
    所述第三时间单元为所述用户设备进行第二直连传输的时域位置，所述第二直连传输预留了所述第一直连传输时间频率资源。
  23. 根据权利要求16所述的通信装置，其特征在于，所述时间单元集合包括所述第二时间单元以及第三偏移值之间差值对应的时间单元，所述第三偏移值基于所述用户设备的周期性时频资源预留周期值确定。
  24. 根据权利要求23所述的通信装置，其特征在于，所述第三偏移值为所述用户设备的周期性时频资源预留周期值，或者所述用户设备的周期性时频资源预留周期值的整数 倍。
  25. 根据权利要求24所述的通信装置，其特征在于，所述周期性时频资源预留周期值基于周期性资源预留的周期值集合确定；
    所述周期性资源预留的周期值集合基于预配置消息确定或基于来自网络设备发送的下行控制信令确定。
  26. 根据权利要求15所述的通信装置，其特征在于，所述处理单元基于第一信息，确定需要进行信道监听的时间单元集合，所述第一信息用于指示用于确定所述时间单元集合的信息。
  27. 根据权利要求26所述的通信装置，其特征在于，所述第一信息基于预配置消息确定或基于来自网络设备发送的下行控制信令确定。
  28. 根据权利要求26所述的通信装置，其特征在于，所述第一信息用于指示如下信息之一或组合：
    所述第一时间单元；
    第二时间单元，所述第二时间单元包括所述第一直连传输时间频率资源的时域位置；
    与所述第二时间单元关联的第一偏移值，以及与所述第一时间单元关联的第二偏移值；
    与所述第二时间单元关联的第三偏移值；以及
    需要进行信道监听的时间单元集合为空集。
  29. 一种通信装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为执行权利要求1至14中任意一项所述的通信方法。
  30. 一种非临时性计算机可读存储介质，当所述存储介质中的指令由处理器执行时，使得用户设备能够执行权利要求1至14中任意一项所述的通信方法。
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