WO2022237455A1 - 直通链路资源选择方法、装置及用户设备 - Google Patents

直通链路资源选择方法、装置及用户设备 Download PDF

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Publication number
WO2022237455A1
WO2022237455A1 PCT/CN2022/087338 CN2022087338W WO2022237455A1 WO 2022237455 A1 WO2022237455 A1 WO 2022237455A1 CN 2022087338 W CN2022087338 W CN 2022087338W WO 2022237455 A1 WO2022237455 A1 WO 2022237455A1
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Prior art keywords
time
resource
resource selection
moment
service package
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PCT/CN2022/087338
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English (en)
French (fr)
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李晨鑫
赵锐
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大唐高鸿智联科技(重庆)有限公司
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Priority to KR1020237038791A priority Critical patent/KR20240015068A/ko
Priority to EP22806425.9A priority patent/EP4307807A1/en
Priority to JP2023569911A priority patent/JP2024519618A/ja
Publication of WO2022237455A1 publication Critical patent/WO2022237455A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/25Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • 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]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • 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
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices
    • 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
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information

Definitions

  • the present disclosure relates to the technical field of direct link communication, and in particular, to a method, device and user equipment for selecting direct link resources.
  • V2X Vehicle to Everything
  • V2V Vehicle to Vehicle
  • V2I Vehicle to Infrastructure
  • V2I Vehicle to Person
  • V2P Vehicle to Pedestrian
  • V2N Vehicle to Network
  • the direct connection communication technology is also applicable to other scenarios, such as direct connection communication between smart terminals.
  • the basic mechanism of resource allocation in related technologies is that the user equipment (User Equipment, UE) learns about the resource occupancy of other UEs and the subsequent resource occupancy in real time through continuous real-time sensing.
  • UE User Equipment
  • the appropriate idle resource to send according to the known resource occupancy situation, and for the direct connection communication scenario with power saving requirements, such as Pedestrian to Vehicle (Pedestrian to Vehicle, P2V) communication in V2P or hand-held terminal Person-to-person (Pedestrian to Pedestrian, P2P) communication needs to redefine the specific process of resource selection methods under power-saving requirements.
  • P2V Pedestrian to Vehicle
  • P2P hand-held terminal Person-to-person
  • the purpose of the embodiments of the present disclosure is to provide a direct link resource selection method, device and user equipment, so as to solve the problem in the related art that there is no specific process of redefining the resource selection method under the power saving requirement.
  • an embodiment of the present disclosure provides a resource selection method, which is applied to a user equipment, and the method includes:
  • the method further includes: when the service package arrives or the service package is about to arrive, determining whether to perform partial sensing; and/or, determining a timing of partial sensing.
  • determining whether to perform partial sensing includes:
  • determining whether to perform partial sensing includes:
  • Partial awareness is determined to be performed in any of the following cases:
  • the preemption configuration information is enabled
  • the preemption configuration information is a priority threshold
  • the preemption configuration information is enabled and the priority of the service package is determined to be not the highest priority
  • the preemption configuration information is a priority threshold and the priority of the service package is determined to be not the highest priority.
  • determining whether to perform partial sensing includes:
  • Preemption configuration information is not provided or configured
  • the preemption configuration information is disabled
  • the preemption configuration information is enabled and the priority of the service package is determined to be the highest priority
  • the preemption configuration information is a priority threshold and the priority of the service package is determined to be the highest priority.
  • determine the timing of partial perception including:
  • the first set of candidate resources includes any of the following:
  • Y time-domain candidate resources determined during resource selection/reselection map according to the resource reservation period, and obtain Y time-domain candidates after the arrival time of the service package and closest to the arrival time of the service package resource.
  • determining the resources for performing the partial sensing includes:
  • the resource for performing the partial sensing is the resource of the latest period before the first moment and corresponding to the first candidate resource set;
  • the first moment is any of the following:
  • a set of periodic values corresponding to periodic partial perception needs to be performed, including:
  • the period value set is determined according to the resource reservation period list information included in the resource pool configuration parameters.
  • the period value indicated by the period value parameter is part or all of the period value indicated by the resource reservation period list included in the resource pool configuration parameter.
  • the method also includes:
  • the resource selection triggering moment is any of the following:
  • the leading time of the first resource selection window is , and the trailing time of the first resource selection window is;
  • the leading time of the first resource selection window is, and the trailing time of the first resource selection window is;
  • n is the service packet arrival time, determines the parameters for the front edge of the resource selection window, and determines the parameters for the resource selection window rear edge.
  • the method further includes:
  • the resource selection check time is any of the following:
  • the method also includes:
  • Persistent partial sensing is performed before said resource selection check moment.
  • the method also includes:
  • the method also includes:
  • Resource selection is performed within the second resource selection window.
  • leading moment of the second resource selection window is, and the trailing moment of the second resource selection window is;
  • the reference time for the resource selection window the parameters are determined for the front edge of the resource selection window, and the parameters are determined for the rear edge of the resource selection window;
  • the resource selection window reference time is any of the following:
  • the method also includes:
  • the second moment is any of the following:
  • an embodiment of the present disclosure further provides a user equipment, including: a transceiver, a memory, a processor, and a computer program stored in the memory and running on the processor, and the processor executes the The resource selection method as described in the first aspect is realized when the above computer program is used.
  • an embodiment of the present disclosure further provides a resource selection apparatus, which is applied to a user equipment, including:
  • the first determining module is configured to determine whether resource selection/reselection needs to be triggered when a service package arrives or the service package is about to arrive.
  • an embodiment of the present disclosure further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the resource selection method as described in the first aspect is implemented.
  • the resource selection method in the embodiment of the present disclosure determines whether resource selection/reselection needs to be triggered when a service package arrives or the service package is about to arrive. Solve the problem that there is currently no definition of the specific process of the resource selection method under the power-saving demand, and realize the resource selection/reselection triggering when the resource service package arrives or the service package is about to arrive under the power-saving mechanism during the resource allocation process The clarity of the determination process realizes the standardization of the resource allocation process.
  • FIG. 1 is a schematic flowchart of a resource selection method in an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of the positional relationship between the arrival time of a service packet and the first candidate resource in the related art
  • Fig. 3 is one of the schematic diagrams of the perception of the execution part of the embodiment of the present disclosure.
  • FIG. 4 is the second schematic diagram of perception of the execution part of the embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of performing partial sensing when the period value parameter is not obtained in an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of performing partial sensing when periodic parameters are obtained in an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of executing resource exclusion at the moment of resource selection check in an embodiment of the present disclosure
  • Fig. 8 is one of the schematic diagrams of performing continuous sensing before the resource selection check time in the embodiment of the present disclosure
  • FIG. 9 is a second schematic diagram of performing continuous sensing before the resource selection check time in an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a resource selection device according to an embodiment of the present disclosure.
  • Fig. 11 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • sequence numbers of the following processes do not mean the order of execution, and the execution order of each process should be determined by its functions and internal logic, and should not be implemented in the present disclosure.
  • the implementation of the examples constitutes no limitation.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean determining B only according to A, and B may also be determined according to A and/or other information.
  • LTE-V2X supports a partial perception mechanism based on periodic service transmission.
  • the UE determines a resource selection window [n+T1, n+T2] containing at least Y subframes, where T1, T2 The determination of depends on the UE implementation, but it needs to satisfy T 1 ⁇ 4, 20 ⁇ T 2 ⁇ 100 and the determination of T2 needs to meet the transmission delay requirement, and Y needs to be greater than or equal to the high-level parameter MinNumCandidateSF.
  • the UE needs to monitor subframe, and obtain the perception result. See Table 1 below for values of P step in different time division duplexing (Time Division Duplexing, TDD) configurations or intelligent traffic system (Intelligent Traffic System, ITS) dedicated frequency bands.
  • TDD Time Division Duplexing
  • ITS Intelligent Traffic System
  • the sensing window can be a logical time slot (slot) within 1100ms or 100ms according to the resource pool configuration, and the resource selection window is [n+T1, n +T2], the determination of T1 and T2 depends on the UE implementation and needs to meet the conditions:
  • T2min determined according to the high-level parameter sl-SelectionWindowList, if T2min is less than the remaining delay budget of the service package, then T2min ⁇ T2 ⁇ the remaining delay budget of the service package (slot granularity representation); otherwise T2 is determined as the service package Remaining delay budget (slot granularity representation).
  • an embodiment of the present disclosure provides a resource selection method, which is applied to a user equipment, and the resource selection method includes:
  • Step 101 when a service package arrives or is about to arrive, determine whether resource selection/reselection needs to be triggered.
  • the resource selection mode of the user equipment is based on partial sensing, specifically, the user equipment may determine to perform resource selection based on partial sensing, or be (pre)configured to perform resource selection based on partial sensing, Or meet the trigger conditions of partial perception and determine to execute resource selection based on partial perception; both, the service package is a periodic service package, and the UE can predict the arrival time of the service package in advance, for example, when a service package arrives, the UE can predict the next A service packet will arrive one cycle later than the current arrival time. Therefore, the above steps can be performed at the arrival time of the service package or when it is about to arrive, and the specific time for performing the above steps can be determined by the UE itself.
  • the resource selection method in the embodiments of the present disclosure is applicable to the technical field of direct communication, wherein a typical application scenario of the direct communication technology is a direct communication scenario of the Internet of Vehicles, and of course, other direct communication scenarios may also be included.
  • the description of the arrival of the service package is expressed from a specific level, which is related to "direct link data available", “media access control protocol data unit (Media Access Control Protocol Data Unit, MAC PDU) available", “transmission Block available” and other expressions are equivalent, and the imminent arrival of service packets can be related to "expected direct link data will be available", “expected MAC PDU will be available”, “expected transmission block will be available”, “expected direct link data will be available in the current direct link Expressions such as “the expected MAC PDU will be available one cycle after the current MAC DPU is available”, “the expected transport block will be available one cycle after the current transport block is available” are equivalent.
  • the user equipment determines whether resource selection/reselection needs to be triggered when the service package arrives or is about to arrive, which solves the problem that there is currently no specific process for the resource selection method under the power saving requirement.
  • the problem of the definition of resource allocation has realized the clarification of the determination process of triggering resource selection/reselection when the resource service package arrives or the service package is about to arrive under the power-saving mechanism in the process of resource allocation, and the standardization of the resource allocation process is realized.
  • V2X devices that cannot ensure continuous and sufficient power supply for pedestrians (such as Pedestrian User Equipment (P-UE), also known as Vulnerable Road Users (VRU) ), or when energy saving is required (such as insufficient vehicle endurance or roadside equipment does not have to continue to work when the number of vehicles is small), the UE power saving mechanism needs to be considered in the above cases.
  • P-UE Pedestrian User Equipment
  • VRU Vulnerable Road Users
  • 3GPP Release 14 defines a partial sensing mechanism for periodic service transmission.
  • the UE determines no less than gapCandidateSensing candidates according to the resource selection window.
  • Y subframes of the resource each denoted as
  • the UE since the UE can predict the arrival time of the service packet in advance, the UE has already performed part of the sensing and listening to the Subframes, acquisition of sensing results, k is determined according to the high-level signaling gapCandidateSensing, corresponding to the case where the kth bit of gapCandidateSensing is 1.
  • NR-V2X New Radio-Vehicle to Everything, NR-V2X
  • the power saving mechanism also needs to consider Discontinuous Reception (DRX).
  • DRX Discontinuous Reception
  • the determination of Y time-domain resources depends on the implementation.
  • the UE may determine Y candidate time-domain resources at a later position in the resource selection window.
  • Evolution-Vehicle to Everything, LTE-V2X) partial sensing mechanism the time interval between n time after n time and the first candidate time domain resource y0 may be relatively large (as shown in Figure 2), this part of the sensing results The absence of will lead to a decrease in transmission reliability.
  • the UE will continue to sense for a long time after n time, for example, it may reach 200ms, and the power consumption will be significantly increased at this time.
  • PDB Packet Delay Budget
  • the method also includes:
  • a service package arrives or is about to arrive, by determining whether to perform partial sensing on the service package, it is realized to determine to perform partial sensing for each service package arriving in the periodic service package, Alternatively, partial sensing is only performed on some of the periodic service packets; compared to the current partial sensing timing being the arrival time of the service package, the embodiments of the present disclosure can also determine the timing of the service packet arrival and the first The resources between the candidate time-domain resources are sensed, which reduces the problem of data transmission reliability degradation caused by the lack of necessary sensing results.
  • determine whether to perform partial perception including:
  • whether to trigger resource selection/reselection for the service package can be determined according to the provisions of Section 5.22.1.2 of 3GPP TS 38.321; In the case where resource selection needs to be triggered for the service package, partial sensing needs to be performed; if it is determined that resource selection does not need to be triggered for the service package according to 3GPP TS 38.321 Section 5.22.1.2, then the resource pool can be further preempted configuration information, or determine whether to perform partial sensing according to the preemption configuration information and the priority of the service package.
  • the partial sensing mechanism in related technologies does not involve re-evaluation or preemption-related processing, so there is no technical problem of judging whether to execute partial sensing when a service package arrives but does not need to trigger resource selection/reselection . Therefore, in this optional implementation manner, it is determined whether to perform partial sensing in combination with the preemption configuration information, which realizes the maximum energy saving of the UE and meets the requirements of the UE power saving mechanism.
  • determining whether to perform partial sensing includes:
  • Partial awareness is determined to be performed in any of the following cases:
  • the preemption configuration information is enable (enable);
  • the preemption configuration information is a priority threshold
  • the preemption configuration information is enabled and the priority of the service package is determined to be not the highest priority
  • the preemption configuration information is a priority threshold and the priority of the service package is determined to be not the highest priority.
  • the priority of the service package to arrive can be based on the priority of the service package that is adjacent to the service package that will arrive this time in the periodic service package.
  • the priority of the service packet arriving last time is determined.
  • the UE determines that it needs to perform partial sensing; or, when the UE determines that the preemption configuration information of the resource pool is the priority threshold In the case of , the UE determines that it needs to perform partial sensing; or, when the UE determines that the preemption configuration information of the resource pool is enable, and further determines that the priority of the service package is not the highest priority, the UE determines that it needs to perform partial sensing; or, When the UE determines that the preemption configuration information of the resource pool is the priority threshold, and further determines that the priority of the service package is not the highest priority, the UE determines that partial sensing needs to be performed.
  • the process of checking at this time can adopt the method of determining to perform resource selection on the service package in this disclosure. /reselection, the method used to remove the resource selection step in the process.
  • FIG. 4 it is the second schematic diagram of performing partial sensing in the embodiment of the present disclosure, wherein FIG. 4 shows that when the preemption configuration information is enabled or the priority threshold value (specific priority value) and the UE sends a service Schematic diagram of performing partial perception when the packet priority is not the highest priority.
  • the dotted box in Figure 4 shows that no resource reselection is performed on the service packets expected to arrive at time n+p, the preemption configuration information is enable or a specific priority value, and the service sent by the UE is not the highest priority, execute Part perception.
  • determining whether to perform partial sensing includes:
  • Preemption configuration information is not provided or configured; that is: sl-PreemptionEnable-r16 is not configured or not provided;
  • the preemption configuration information is disabled (disable);
  • the preemption configuration information is enabled and the priority of the service package is determined to be the highest priority
  • the preemption configuration information is a priority threshold and the priority of the service package is determined to be the highest priority.
  • the priority of the service package to arrive can be determined according to the priority of the previously arriving service package adjacent to the service package that will arrive this time .
  • FIG. 3 it is one of the schematic diagrams of performing partial sensing in the embodiment of the present disclosure; wherein, FIG. 3 shows that partial sensing is not performed when no preemption configuration information is provided or configured or the UE transmits the highest traffic. Specifically, the dotted box in Figure 3 shows that no resource reselection is performed on the service packets expected to arrive at time n+p, no preemption configuration information is provided or configured, or the UE sends the highest service, no execution Part perception.
  • the above optional implementation and the two specific implementations realize that when the periodic service packet transmission is determined in combination with the preemption configuration information, partial sensing is performed on each arriving service packet or only partial sensing is performed on some service packets, realizing UE Maximum power saving.
  • determine some sensing opportunities including:
  • the first set of candidate resources includes any of the following:
  • Y time-domain candidate resources determined during resource selection/reselection map according to the resource reservation period, and obtain Y time-domain candidates after the arrival time of the service package and closest to the arrival time of the service package resource.
  • the Y time-domain candidate resources may be predetermined time-domain candidate resources, or may be resources mapped according to the Y time-domain candidate resources determined during resource selection/reselection.
  • the UE uses the predetermined Y time-domain candidate resources for resource selection/reselection to be performed, or the Y time-domain candidate resources determined when the UE performs resource selection/reselection last time, corresponding
  • the periodic value set corresponding to the periodic partial sensing needs to be performed to determine the resources for performing partial sensing. In this way, the arrival time of the service package to the first candidate can be realized.
  • the determined resource for performing partial sensing may be one or more periods of periodic partial sensing resources that are determined according to the sl-ResourceReservePeriodList-r16 parameter and located before the Y candidate resources in the time domain.
  • determining the resource for performing the partial sensing includes:
  • the resource for performing the partial sensing is the resource of the latest period before the first moment and corresponding to the first candidate resource set;
  • the first moment is any of the following:
  • ty0 can be represented by the basic time unit supported by the system, such as the physical time slot or logical time slot in NR-V2X Release 16 or the time slot in the resource pool.
  • the processing delay may be determined by at least one of the sensing result processing time Tproc,0, resource selection and sending time Tproc,1, and resource selection window frontier determination parameter T1.
  • the processing delay can be any of the following:
  • the processing delay can also be a time unit, and the time unit can be Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol, physical time slot , logical time slot, time slot in the resource pool, physical subframe, logical subframe or subframe in the resource pool, ms, etc.;
  • OFDM Orthogonal Frequency Division Multiplexing
  • Tproc, 0, Tproc, 1, and T1 in the above formula are all time units defined by the through link, such as OFDM symbols, physical time slots, logical time slots, time slots in resource pools, physical subframes, Logical subframe or subframe, ms, etc. in the resource pool.
  • Partial sensing is performed on the resources between time intervals of a candidate time-domain resource, which avoids the phenomenon that the reliability of data transmission is reduced due to the lack of sensing results.
  • the periodic value set corresponding to the periodic partial awareness needs to be implemented, including:
  • the period value set is determined according to the resource reservation period list information included in the resource pool configuration parameters. In this way, the determination of the timing of the partial sensing can be realized without introducing new periodic configuration signaling dedicated to the partial sensing.
  • the dedicated signaling for partial sensing when the UE determines a specific partial sensing opportunity, if the dedicated signaling for partial sensing is configured, the dedicated signaling is used to determine the set of periodic values; if the dedicated signaling is not configured, it is configured according to the resource pool Supported period value execution.
  • the period value indicated by the period value parameter is part or all of the period value indicated by the resource reservation period list contained in the resource pool configuration parameter.
  • the resources performing partial awareness may be the same as the resources supported by the resource pool for periodic partial awareness, or be a part of the resources supported by the resource pool for periodic partial awareness.
  • the resource selection method in the embodiment of the present disclosure by determining the partial sensing timing according to the first time when performing partial sensing, realizes resource sensing between the arrival time of the service package and the time where the first candidate time-domain resource is located, avoiding It eliminates the phenomenon that the reliability of data transmission is reduced due to the lack of necessary sensing results, and ensures the reliability of transmission.
  • the method also includes:
  • Step 1 Determine the first resource selection window at the triggering moment of resource selection
  • Step 2 performing resource selection within the first resource selection window
  • the resource selection triggering moment is any of the following:
  • ty0 can be represented by the basic time unit supported by the system, such as the physical time slot or logical time slot in NR-V2X Release 16 or the time slot in the resource pool.
  • the processing delay may be determined by at least one of the sensing result processing time Tproc,0, resource selection and sending time Tproc,1, and resource selection window frontier determination parameter T1.
  • the processing delay can be any of the following: Tproc, 1; T1; Tproc, 0+Tproc, 1; Tproc, 0+T1; Tproc, 1+1; T1+1; (Tproc, 0+Tproc , 1)+1; (Tproc, 0+T1)+1; wherein, "1" in the above formula is a time unit, therefore, the processing delay can also be a time unit, and the time unit can be OFDM symbol, physical Time slot, logical time slot, time slot in resource pool, physical subframe, logical subframe or subframe in resource pool, ms, etc.
  • Tproc, 0, Tproc, 1, and T1 in the above formula are all time units defined by the through link, such as OFDM symbols, physical time slots, logical time slots, time slots in resource pools, physical subframes, Logical subframe or subframe, ms, etc. in the resource pool.
  • the leading time of the first resource selection window is m+T1, and the trailing time of the first resource selection window is m+T2; or, the leading time of the first resource selection window is n+T1, the trailing edge time of the first resource selection window is n+T2; wherein, m is the resource selection trigger time, n is the arrival time of the service packet, T1 is the front edge determination parameter of the resource selection window, and T2 is the resource selection The rear edge of the window determines the parameters.
  • the resource selection trigger time is the arrival time of the service packet, it is determined that the leading time of the first resource selection window is n+T1, and the trailing time of the first resource selection window is n+T2 ;
  • the resource selection trigger time is not the arrival time of the service packet, determine that the leading time of the first resource selection window is m+T1, and the trailing time of the first resource selection window is m+T2; or, the The leading moment of the first resource selection window is n+T1, and the trailing moment of the first resource selection window is n+T2.
  • the The method when the resource selection trigger time is the arrival time of the service package, after resource selection is performed in the first resource selection window, the The method also includes:
  • the resource selection check time is any of the following:
  • the processing delay may be determined by at least one of the sensing result processing time Tproc,0, resource selection and sending time Tproc,1, and resource selection window frontier determination parameter T1.
  • the processing delay can be any of the following: Tproc, 1; T1; Tproc, 0+Tproc, 1; Tproc, 0+T1; Tproc, 1+1; T1+1; (Tproc, 0+Tproc , 1)+1; (Tproc, 0+T1)+1; wherein, "1" in the above formula is a time unit, in addition, the processing delay can also be a time unit, and the time unit can be OFDM symbol, physical Time slot, logical time slot, time slot in resource pool, physical subframe, logical subframe or subframe in resource pool, ms, etc.
  • Tproc, 0, Tproc, 1, and T1 in the above formula are all time units defined by the through link, such as OFDM symbols, physical time slots, logical time slots, time slots in resource pools, physical subframes, Logical subframe or subframe, ms, etc. in the resource pool.
  • the reason for determining the resource selection check time and checking the selected resources at the resource selection check time is that although partial sensing can be defined based on the first of at least Y time-domain candidate resources determined in advance Part of the perception opportunity is determined by subtracting the time ty0 of the time ty0 where the first time-domain candidate resource is located or the time ty0 where the first time-domain candidate resource among the Y time-domain candidate resources is located, but if the resource selection trigger Determining the time as the arrival time of the service packet does not ensure that all partial sensing results are fully used to avoid collisions. Therefore, it is necessary to additionally define the resource selection check time for this specific implementation to ensure that all partial sensing results can be fully used.
  • the resource selection check time is determined, and at the resource selection check time, resource exclusion based on perception is performed, including:
  • the physical layer of the user equipment determines the resource selection check time, and performs resource exclusion based on perception at the resource selection check time;
  • the MAC of the user equipment determines the resource selection check time, and triggers the physical layer of the user equipment to perform perception-based resource exclusion at the resource selection check time.
  • the resource selection check time can be determined by the physical layer, or the resource selection check time can be determined by the MAC layer; when the resource selection check time is determined by the physical layer, the physical layer can determine the resource selection check time Perform perception-based resource exclusion at all times.
  • the MAC layer triggers the physical layer of the user equipment to perform perception-based resource exclusion at the resource selection check time, thus avoiding the MAC layer and The multiple interactions between the physical layers realize the balance of power saving and reliability of the UE.
  • the physical layer reports the exclusion result to the MAC layer; the MAC layer determines whether the selected resource is excluded according to the exclusion result; the MAC layer determines whether the resource has been excluded. If the selected resource is excluded, perform resource reselection.
  • the method further includes: performing continuous partial sensing before the resource selection check time.
  • performing continuous partial sensing specifically includes: the MAC layer of the user equipment triggers the user equipment The physical layer performs continuous sensing before the resource selection check time;
  • performing continuous partial sensing before the resource selection check time specifically includes: the physical layer performing continuous sensing before the resource selection check time.
  • the method also includes:
  • the method also includes:
  • Resource selection is performed within the second resource selection window.
  • the leading time of the second resource selection window is p+T1
  • the trailing time of the second resource selection window is p+T2
  • p is the reference time of the resource selection window
  • T1 is the parameter determined at the front edge of the resource selection window
  • T2 is the parameter determined at the rear edge of the resource selection window
  • the resource selection window reference time is any of the following:
  • the processing delay may be determined by at least one of the sensing result processing time Tproc,0, resource selection and sending time Tproc,1, and resource selection window frontier determination parameter T1.
  • the processing delay can be any of the following: Tproc, 1; T1; Tproc, 0+Tproc, 1; Tproc, 0+T1; Tproc, 1+1; T1+1; (Tproc, 0+Tproc , 1)+1; (Tproc, 0+T1)+1; wherein, "1" in the above formula is a time unit, in addition, the processing delay can also be a time unit, and the time unit can be OFDM symbol, physical Time slot, logical time slot, time slot in resource pool, physical subframe, logical subframe or subframe in resource pool, ms, etc.
  • Tproc, 0, Tproc, 1, and T1 in the above formula are all time units defined by the through link, such as OFDM symbols, physical time slots, logical time slots, time slots in resource pools, physical subframes, Logical subframe or subframe, ms, etc. in the resource pool.
  • the resource selection window reference time is used to determine the resource selection window, which can be determined by the physical layer of the user equipment itself, or indicated by the MAC layer of the user equipment, or, the same as the arrival time of the service packet, or, It is the same as the resource selection trigger time, or the resource exclusion execution time determined by the physical layer, or the resource selection check time determined by the physical layer, but it is not limited to the above situations.
  • the method also includes:
  • the second moment is any of the following:
  • the processing delay may be determined by at least one of the sensing result processing time Tproc,0, resource selection and sending time Tproc,1, and resource selection window frontier determination parameter T1.
  • the processing delay can be any of the following: Tproc, 1; T1; Tproc, 0+Tproc, 1; Tproc, 0+T1; Tproc, 1+1; T1+1; (Tproc, 0+Tproc , 1)+1; (Tproc, 0+T1)+1; wherein, "1" in the above formula is a time unit, therefore, the processing delay can also be a time unit, and the time unit can be OFDM symbol, physical Time slot, logical time slot, time slot in resource pool, physical subframe, logical subframe or subframe in resource pool, ms, etc.
  • Tproc, 0, Tproc, 1, and T1 in the above formula are all time units defined by the through link, such as OFDM symbols, physical time slots, logical time slots, time slots in resource pools, physical subframes, Logical subframe or subframe, ms, etc. in the resource pool.
  • the resource selection method in the embodiment of the present disclosure realizes: firstly, when the UE determines that periodic service packets are sent according to the preemption configuration information of the resource pool, it performs partial sensing on each arriving service packet, or queues some service packets Execute partial sensing; both, if the period configuration signaling dedicated to partial sensing is configured, determine the cycle value set according to the instruction, and determine the timing of partial sensing; if the instruction is not configured, configure the signal according to the resource pool The cycle value supported in the order determines part of the sensing timing, so that the user equipment can also determine part of the sensing timing without introducing this instruction; Third, when the UE needs to perform resource selection when the service packet arrives, determine the resource selection trigger time or resource selection check time; fourth, if the UE executes resource selection or resource exclusion at the arrival time of the service packet, at the time of the first candidate time domain resource or before the time of the first candidate time domain resource considering the processing time time, perform resource exclusion again to determine whether resource reselection is required; fifthly
  • an embodiment of the present disclosure also provides a resource selection device, which is applied to a user equipment, and the device includes:
  • the first determining module 1001 is configured to determine whether resource selection/reselection needs to be triggered when a service package arrives or the service package is about to arrive.
  • the first determination module 1001 determines whether resource selection/reselection needs to be triggered when a service package arrives or the service package is about to arrive. Solve the problem that there is currently no definition of the specific process of the resource selection method under the power-saving demand, and realize the resource selection/reselection triggering when the resource service package arrives or the service package is about to arrive under the power-saving mechanism during the resource allocation process The clarity of the determination process realizes the standardization of the resource allocation process.
  • the first determining module 1001 is further configured to: determine whether to perform partial sensing when the service packet arrives or is about to arrive; and/or determine a partial sensing timing.
  • the first determination module 1001 includes:
  • the first determination submodule is configured to determine to perform partial perception when it is determined that resource selection/reselection needs to be triggered for the service package;
  • the second determining submodule is configured to, when it is determined that resource selection/reselection does not need to be triggered for the service package, according to the preemption configuration information of the resource pool, or according to the preemption configuration information and the priority of the service package level, determines whether to perform partial sensing.
  • the second determining submodule is specifically configured to:
  • Partial awareness is determined to be performed in any of the following cases:
  • the preemption configuration information is enabled
  • the preemption configuration information is a priority threshold
  • the preemption configuration information is enabled and the priority of the service package is determined to be not the highest priority
  • the preemption configuration information is a priority threshold and the priority of the service package is determined to be not the highest priority.
  • the second determining submodule is specifically configured to:
  • Preemption configuration information is not provided or configured
  • the preemption configuration information is disabled
  • the preemption configuration information is enabled and the priority of the service package is determined to be the highest priority
  • the preemption configuration information is a priority threshold and the priority of the service package is determined to be the highest priority.
  • the first determining module 1001 includes:
  • the third determination sub-module is used to determine the period value set corresponding to the perception of the execution part
  • a fourth determining submodule configured to determine resources for performing the partial sensing according to the first set of candidate resources and the set of period values
  • the first set of candidate resources includes any of the following:
  • Y time-domain candidate resources determined during resource selection/reselection map according to the resource reservation period, and obtain Y time-domain candidates after the arrival time of the service package and closest to the arrival time of the service package resource.
  • the fourth determining submodule is specifically configured to:
  • the resource for performing the partial sensing is the resource of the latest period before the first moment and corresponding to the first candidate resource set;
  • the first moment is any of the following:
  • the third determining submodule is specifically configured to:
  • the period value set is determined according to the resource reservation period list information included in the resource pool configuration parameters.
  • the period value indicated by the period value parameter is part or all of the period value indicated by the resource reservation period list included in the resource pool configuration parameter.
  • the device also includes:
  • the first execution module is configured to perform the following steps when it is determined that resource selection/reselection needs to be triggered:
  • the resource selection triggering moment is any of the following:
  • the leading moment of the first resource selection window is m+T1
  • the trailing moment of the first resource selection window is m+T2
  • the leading time of the first resource selection window is n+T1
  • the trailing time of the first resource selection window is n+T2
  • m is the resource selection trigger time
  • n is the service packet arrival time
  • T1 is the parameter for determining the front edge of the resource selection window
  • T2 is the parameter for determining the rear edge of the resource selection window.
  • the first execution module is also used for:
  • the resource selection trigger time is the arrival time of the service package, after the resource selection is performed in the first resource selection window, the resource selection check time is determined, and at the resource selection check time, the perception-based resource exclusion;
  • the resource selection check time is any of the following:
  • the first execution module is also used for:
  • Persistent partial sensing is performed before said resource selection check moment.
  • the first execution module is also used for:
  • the device also includes:
  • Resource selection is performed within the second resource selection window.
  • the leading moment of the second resource selection window is p+T1
  • the trailing moment of the second resource selection window is p+T2
  • p is the reference time of the resource selection window
  • T1 is the parameter determined at the front edge of the resource selection window
  • T2 is the parameter determined at the rear edge of the resource selection window
  • the resource selection window reference time is any of the following:
  • the device also includes:
  • the third execution module is configured to continue executing the resource sensing until the end of the reassessment judgment and/or the preemption judgment after the second moment when it is determined to execute the partial sensing;
  • the second moment is any of the following:
  • an embodiment of the present disclosure also provides a user equipment, including: a processor 1100; and a memory 1120 connected to the processor 1100 through a bus interface, and the memory 1120 is used to store the The processor 1100 invokes and executes the programs and data stored in the memory 1120 .
  • the transceiver 1110 is connected to the bus interface, and is used to receive and send data under the control of the processor 1100; the processor 1100 is used to read the program in the memory 1120 to perform the following steps:
  • the processor 1100 determines whether resource selection/reselection needs to be triggered when a service packet arrives or the service packet is about to arrive. Solve the problem that there is currently no definition of the specific process of the resource selection method under the power-saving demand, and realize the resource selection/reselection triggering when the resource service package arrives or the service package is about to arrive under the power-saving mechanism during the resource allocation process The clarity of the determination process realizes the standardization of the resource allocation process.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1100 and various circuits of the memory represented by the memory 1120 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein.
  • the bus interface provides the interface.
  • Transceiver 1110 may be a plurality of elements, ie, including a transmitter and a transceiver, providing a means for communicating with various other devices over a transmission medium.
  • the user interface 1130 may also be an interface capable of connecting externally and internally to required devices, and the connected devices include but are not limited to keypads, displays, speakers, microphones, joysticks, and the like.
  • the processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1100 when performing operations.
  • the user equipment provided by the embodiments of the present disclosure is a user equipment capable of performing the above resource selection method, and all embodiments of the above resource selection method are applicable to the user equipment, and can achieve the same or similar beneficial effects .
  • an embodiment of the present disclosure also provides a computer-readable storage medium, on which a program is stored.
  • a program is stored.
  • the various processes of the above-mentioned resource selection method embodiment are implemented, and the same To avoid repetition, the technical effects will not be repeated here.
  • the computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.
  • each component or each step can be decomposed and/or reassembled. These decompositions and/or recombinations should be considered equivalents of the present disclosure. Also, the steps for performing the above series of processes may naturally be performed in the order described or in chronological order, but not necessarily in chronological order, and some steps may be performed in parallel or independently of each other.
  • the object of the present disclosure can also be achieved by running a program or a group of programs on any computing device.
  • the computing device may be a known general-purpose device. Therefore, the object of the present disclosure can also be achieved only by providing a program product including program codes for realizing the method or device. That is to say, such a program product also constitutes the present disclosure, and a storage medium storing such a program product can also constitute the present disclosure.
  • the storage medium may be any known storage medium or any storage medium developed in the future.
  • each determining module can be a separate processing element, and can also be integrated in a certain chip of the above-mentioned device.
  • it can also be stored in the memory of the above-mentioned device in the form of program code, and processed by a certain chip of the above-mentioned device.
  • the component invokes and executes the functions of the modules identified above.
  • the implementation of other modules is similar.
  • all or part of these modules can be integrated together, and can also be implemented independently.
  • the processing element mentioned here may be an integrated circuit with signal processing capability.
  • each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.
  • each module, unit, subunit or submodule may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (Application Specific Integrated Circuit, ASIC), or, one or Multiple microprocessors (digital signal processor, DSP), or, one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
  • ASIC Application Specific Integrated Circuit
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or other processors that can call program codes.
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip

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Abstract

本公开公开了一种直通链路资源选择方法、装置及用户设备,涉及直连通信技术领域,该方法应用于用户设备,该方法包括:在业务包到达或者所述业务包将要到达的情况下,确定是否需要触发资源选择/重选。

Description

直通链路资源选择方法、装置及用户设备
相关公开的交叉引用
本公开主张在2021年5月10日在中国提交的中国专利公开号No.202110506370.2的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及直连通信技术领域,尤其是涉及一种直通链路资源选择方法、装置及用户设备。
背景技术
直连通信技术适用的典型场景为车联网车对万物(Vehicle to Everything,V2X),支持车对车(Vehicle to Vehicle,V2V)、车对基础设施(Vehicle to Infrastructure,V2I)、车对人(Vehicle to Pedestrian,V2P)和车对网络(Vehicle to Network,V2N)等通信方式,具体的,上述V2X设备之间通过直通链路(sidelink)进行通信。此外,直连通信技术还适用于其他场景,例如智能终端之间的直连通信等。
针对V2X设备,相关技术中的资源分配的基本机制是用户设备(User Equipment,UE)通过持续实时感知,实时的了解其他UE的资源占用情况以及后续的资源占用情况,当自身有资源选择或重选的需求时,根据了解到的资源占用情况选择合适的空闲资源来发送,而对于具有节电需求的直连通信场景,例如V2P中人对车(Pedestrian to Vehicle,P2V)通信或者手持终端的人对人(Pedestrian to Pedestrian,P2P)通信,需要重新定义节电需求下的资源选择方法的具体过程。
发明内容
本公开实施例的目的在于提供一种直通链路资源选择方法、装置及用户设备,从而解决相关技术中没有重新定义节电需求下的资源选择方法的具体过程的问题。
第一方面,本公开实施例提供一种资源选择方法,应用于用户设备,所述方法包括:
在业务包到达或者所述业务包将要到达的情况下,确定是否需要触发资源选择/重选。
可选地,所述方法还包括:在所述业务包到达或者所述业务包将要到达的情况下,确定是否执行部分感知;和/或,确定部分感知时机。
可选地,确定是否执行部分感知,包括:
在确定需要对所述业务包触发资源选择/重选的情况下,确定执行部分感知;
在确定不需要对所述业务包触发资源选择/重选的情况下,根据资源池的抢占配置信息,或者,根据所述抢占配置信息和所述业务包的优先级,确定是否执行部分感知。
可选地,根据资源池的抢占配置信息,或者,根据所述抢占配置信息和所述业务包的优先级,确定是否执行部分感知,包括:
在下述任一种情况下,确定执行部分感知:
所述抢占配置信息为使能;
所述抢占配置信息为优先级门限值;
所述抢占配置信息为使能且所述业务包优先级被确定为非最高优先级;
所述抢占配置信息为优先级门限值且所述业务包优先级被确定为非最高优先级。
可选地,根据资源池的抢占配置信息,或者,根据所述抢占配置信息和所述业务包的优先级,确定是否执行部分感知,包括:
在下述任一种情况下,确定不执行部分感知:
未提供或未配置抢占配置信息;
所述抢占配置信息为不使能;
所述抢占配置信息为使能且所述业务包的优先级被确定为最高优先级;
所述抢占配置信息为优先级门限值且所述业务包的优先级被确定为最高优先级。
可选地,确定部分感知时机,包括:
确定执行部分感知对应的周期值集合;
根据第一候选资源集合和所述周期值集合,确定执行所述部分感知的资源;
其中,所述第一候选资源集合包括下述任一项:
预先确定的Y个时域候选资源;
根据已进行资源选择/重选时确定的Y个时域候选资源,按照资源预约周期进行映射、得到的所述业务包的到达时刻之后且距离所述业务包到达时刻最近的Y个时域候选资源。
可选地,根据第一候选资源集合和所述周期值集合,确定执行所述部分感知的资源,包括:
根据所述周期值集合,确定执行所述部分感知的资源为在第一时刻之前且与所述第一候选资源集合对应的最近的一个周期的资源;
其中,所述第一时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻减去处理时延的时刻。
可选地,确定需要执行周期性部分感知对应的周期值集合,包括:
根据预配置或网络配置的用于确定部分感知时机的周期值参数,确定所述周期值集合;
或者,在未获取到预配置或网络配置的用于确定部分感知时机的周期值参数的情况下,根据资源池配置参数中包含的资源预约周期列表信息确定所述周期值集合。
可选地,所述周期值参数指示的周期值为所述资源池配置参数中包含的资源预约周期列表所指示的周期值的部分或者全部。
可选地,所述方法还包括:
在确定需要触发资源选择/重选的情况下,执行以下步骤:
在资源选择触发时刻确定第一资源选择窗;
在所述第一资源选择窗内进行资源选择;
其中,所述资源选择触发时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻;
至少Y个时域候选资源中的第一个时域候选资源所在的时刻减去处理时延的时刻。
可选地,所述第一资源选择窗的前沿时刻为,所述第一资源选择窗的后沿时刻为;
或者,所述第一资源选择窗的前沿时刻为,所述第一资源选择窗的后沿时刻为;
其中,为资源选择触发时刻,n为业务包到达时刻,为资源选择窗前沿确定参数,为资源选择窗后沿确定参数。
可选地,在所述资源选择触发时刻为所述业务包到达时刻的情况下,在所述第一资源选择窗内进行资源选择之后,所述方法还包括:
确定资源选择检查时刻,在所述资源选择检查时刻,进行基于感知的资源排除;
在已选资源被排除的情况下,进行资源重选;
所述资源选择检查时刻为下述任一项:
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻减去处理时延的时刻。
可选地,所述方法还包括:
在所述资源选择检查时刻之前,执行持续部分感知。
可选地,所述方法还包括:
在所述资源选择触发时刻之前,执行持续部分感知。
可选地,所述方法还包括:
在确定需要触发资源选择/重选的情况下,执行以下步骤:
确定第二资源选择窗;
在所述第二资源选择窗内进行资源选择。
可选地,所述第二资源选择窗的前沿时刻为,所述第二资源选择窗的后沿时刻为;
其中,为资源选择窗参考时刻,为资源选择窗前沿确定参数,为资源选择窗后沿确定参数;
其中,所述资源选择窗参考时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻减去处理时延的时刻。
可选地,所述方法还包括:
在确定执行部分感知的情况下,在第二时刻之后,持续执行资源感知至重评估判断和/或抢占判断结束;
其中,所述第二时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻减去处理时延的时刻。
第二方面,本公开实施例还提供一种用户设备,包括:收发机、存储器、处理器及存储在所述存储器上并了在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现如第一方面所述的资源选择方法。
第三方面,本公开实施例还提供一种资源选择装置,应用于用户设备,包括:
第一确定模块,用于在业务包到达或者所述业务包将要到达的情况下,确定是否需要触发资源选择/重选。
第四方面,本公开实施例还提供一种计算机可读存储介质,其上存储有 计算机程序,所述计算机程序被处理器执行时实现如第一方面所述的资源选择方法。
本公开的上述技术方案至少具有如下有益效果:
本公开实施例的资源选择方法,通过在业务包到达或者所述业务包将要到达的情况下,确定是否需要触发资源选择/重选。解决了目前没有对节电需求下的资源选择方法的具体过程的定义的问题,实现了对资源分配过程中,节电机制下资源业务包到达或者业务包将要到达情况下触发资源选择/重选的确定过程的明确,实现了资源分配过程的规范化。
附图说明
图1为本公开实施例的资源选择方法的流程示意图;
图2为相关技术中业务包到达时刻与第一个候选资源的位置关系示意图;
图3为本公开实施例的执行部分感知的示意图之一;
图4为本公开实施例的执行部分感知的示意图之二;
图5为本公开实施例中未获取到周期值参数时执行部分感知的示意图;
图6为本公开实施例中获取到周期性参数时执行部分感知的示意图;
图7为本公开实施例中在资源选择检查时刻执行资源排除的示意图;
图8为本公开实施例中在资源选择检查时刻之前执行持续感知的示意图之一;
图9为本公开实施例中在资源选择检查时刻之前执行持续感知的示意图之二;
图10为本公开实施例的资源选择装置的结构示意图;
图11为本公开实施例的用户设备的结构示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚,下面将结合附图及具体实施例进行详细描述。在下面的描述中,提供诸如具体的配置和组件的特定细节仅仅是为了帮助全面理解本公开的实施例。因此,本领域技术人员应该清楚,可以对这里描述的实施例进行各种改变和修改而不脱离本 公开的范围和精神。另外,为了清楚和简洁,省略了对已知功能和构造的描述。
应理解,说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本公开的至少一个实施例中。因此,在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外,这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本公开的各种实施例中,应理解,下述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本公开实施例的实施过程构成任何限定。
在本公开所提供的实施例中,应理解,“与A相应的B”表示B与A相关联,根据A可以确定B。但还应理解,根据A确定B并不意味着仅仅根据A确定B,还可以根据A和/或其它信息确定B。
在进行本公开实施例的说明之前,首先对与本公开实施例相关的内容进行说明:
LTE-V2X基于周期性业务传输支持部分感知机制,在业务包到达时(记为n时刻),UE确定包含至少Y个子帧的资源选择窗[n+T1,n+T2],其中T1、T2的确定取决于UE实现、但需要满足T 1≤4、20≤T 2≤100且T2的确定需要满足传输时延需求,且Y需要大于等于高层参数MinNumCandidateSF。同时,对于包含在资源选择窗中作为候选资源的Y个子帧(每个记为
Figure PCTCN2022087338-appb-000001
),根据高层信令gapCandidateSensing,如果gapCandidateSensing的第k位为1,则UE需要监听到
Figure PCTCN2022087338-appb-000002
子帧、获取感知结果。不同的时分复用(Time Division Duplexing,TDD)配置或者智能交通系统(Intelligent Traffic System,ITS)专用频段上的P step取值见下表1。
表1
Figure PCTCN2022087338-appb-000003
NR-V2X版本16(Release 16)确定全感知(full sensing)资源选择机制,感知窗口根据资源池配置可为1100ms或者100ms内的逻辑时隙(slot),资源选择窗口为[n+T1,n+T2],T1、T2的确定取决于UE实现且需要满足条件:
(1)
Figure PCTCN2022087338-appb-000004
取值与SCS配置参数μ SL有关,为:
表2
Figure PCTCN2022087338-appb-000005
(2)对于根据高层参数sl-SelectionWindowList确定的T2min,如果T2min小于业务包的剩余时延预算,则T2min≤T2≤业务包的剩余时延预算(slot粒度表示);否则T2确定为业务包的剩余时延预算(slot粒度表示)。
然而,目前尚无解决针对DRX ON Duration(持续时间)以及UE实现确定Y个候选时域资源等原因,导致业务包到达的n时刻与第一个候选时域资源ty0之间时间间隔较大、造成必要sensing结果缺失导致可靠性下降问题的方案。
下面,结合附图对本公开实施例的资源选择方法进行说明:
如图1所示,本公开实施例提供一种资源选择方法,应用于用户设备,该资源选择方法包括:
步骤101,在业务包到达或者所述业务包将要到达的情况下,确定是否需要触发资源选择/重选。
这里,需要说明的是,一者,用户设备的资源选择方式为基于部分感知,具体可以为用户设备自行确定执行部分感知的资源选择,或者被(预)配置 为执行基于部分感知的资源选择,或者满足部分感知的触发条件确定执行基于部分感知的资源选择;二者,该业务包为周期性业务包,UE可以提前预知业务包的到达时刻,例如UE在一个业务包到达时、可以预知下一个业务包会在当前到达时刻的一个周期以后到达,因此,可以在业务包的到达时刻或将要到达时执行上述步骤,而执行上述步骤的具体时刻可以由UE自行确定,如:可以在周期性业务包的到达时刻执行,或者可以在前一个周期性业务包到达时刻执行,或者,可以在前一个周期性业务包到达之后的某一时刻由UE自行确定执行,或者,可以在前一个周期性业务包到达且传输完成后执行,或者,在周期性业务包的到达时刻之前的第一时刻执行,而该第一时刻可以与周期性业务包的到达时刻之间间隔预设时长;三者,本公开实施例的资源选择方法适用于直连通信技术领域,其中,直连通信技术的典型应用场景为车联网直连通信场景,当然,也可以包括其他直连通信场景。需要说明的是,业务包达到的描述是从特定层面表达的,与“直通链路数据可用”、“媒体接入控制协议数据单元(Media Access Control Protocol Data Unit,MAC PDU)可用”、“传输块可用”等表述等同,业务包即将到达可与“预期直通链路数据将可用”、“预期MAC PDU将可用”、“预期传输块将可用”、“预期直通链路数据将在当前直通链路数据可用后的一个周期后可用”、“预期MAC PDU将在当前MAC DPU可用后的一个周期后可用”、“预期传输块将在当前传输块可用后的一个周期后可用”等表述等同。
本公开实施例的资源选择方法,用户设备在业务包到达或业务包将要到达的情况下,确定是否需要触发资源选择/重选,解决了目前没有对节电需求下的资源选择方法的具体过程的定义的问题,实现了对资源分配过程中,节电机制下资源业务包到达或者业务包将要到达情况下触发资源选择/重选的确定过程的明确,实现了资源分配过程的规范化。
这里,需要说明的是,V2X设备中,针对行人无法确保持续充足供电的V2X设备(如行人手持终端(Pedestrian User Equipment,P-UE),也称弱势道路交通参与者(Vulnerable Road Users,VRU)),或者,需要进行节能的情况(如车辆续航能力不足或者路侧设备在车辆数量较少时不必持续工作),上述情况下需要考虑UE节电机制。
针对节电机制下的资源选择,3GPP Release 14定义了针对周期性业务传输的部分感知(partial sensing)机制,在周期性业务到达的n时刻,UE根据资源选择窗中确定不少于gapCandidateSensing个候选资源的Y个子帧(每个记为
Figure PCTCN2022087338-appb-000006
),由于UE可以提前预知业务包到达时间,因此,UE在n时刻已经根据高层参数MinNumCandidateSF和gapCandidateSensing执行了部分感知、监听到
Figure PCTCN2022087338-appb-000007
子帧、获取感知结果,k根据高层信令gapCandidateSensing确定,对应gapCandidateSensing的第k位为1的情况。
在新空口-车对万物(New Radio-Vehicle to Everything,NR-V2X)中,节能(power saving)机制还需要考虑非连续接收(Discontinuous Reception,DRX),对于发送UE进行资源选择需要与接收UE DRX ON对齐的情况,结合Y个时域资源的确定取决于实现,UE可能会在资源选择窗口的靠后的位置确定Y个候选时域资源,如果仅参照长期演进-车对万物(Long Term Evolution-Vehicle to Everything,LTE-V2X)的partial sensing机制,n时刻之后的n时刻到第一个候选时域资源y0之间的时间间隔可能较大(如图2所示),这部分sensing结果的缺失会导致传输可靠性下降。
但另一方面,如果n时刻之后,持续执行sensing,当时延需求不高(即业务包到达时,业务包时延预算(Packet Delay Budget,PDB)较大时,例如250ms),再结合DRX ON duration对齐的条件,n时刻之后UE会持续sensing较长时间,例如可能达到200ms,此时能耗(power consumption)将显著提高。
因此,进一步地,作为一个可选的实现方式,该方法还包括:
在所述业务包到达或者所述业务包将要到达的情况下,确定是否执行部分感知;和/或,确定部分感知时机。
本可选的实现方式中,在业务包到达或者将要到达的情况下,通过确定是否对该业务包执行部分感知,实现了确定针对周期性业务包中到达的每个业务包都执行部分感知,或者,仅对周期性业务包中的部分业务包执行部分感知;相对于目前的部分感知时机为业务包到达时刻,本公开实施例通过确定部分感知时机,还能够对业务包到达时刻与第一个候选时域资源之间的资源进行感知,减少了必要的感知结果缺失导致数据传输可靠性下降的问题。
作为一个可选的实现方式,确定是否执行部分感知,包括:
在确定需要对所述业务包触发资源选择/重选的情况下,确定执行部分感知;
在确定不需要对所述业务包触发资源选择/重选的情况下,根据资源池的抢占配置信息,或者,根据所述抢占配置信息和所述业务包的优先级,确定是否执行部分感知。
这里,需要说明的是,本可选实现方式中,可以按照3GPP TS 38.321 5.22.1.2节规定确定是否对该业务包触发资源选择/重选;其中,在根据3GPP TS 38.321 5.22.1.2节规定确定需要对该业务包触发资源选择的情况下,则需要执行部分感知;在根据3GPP TS 38.321 5.22.1.2节规定确定不需要对该业务包触发资源选择的情况下,则可以进一步根据资源池的抢占配置信息,或者,根据抢占配置信息和业务包的优先级确定是否执行部分感知。
需要说明的是,相关技术中的partial sensing机制并不涉及重评估或者抢占相关的处理,因此并不存在业务包到达但不需要触发资源选择/重选时,需要判断是否执行partial sensing的技术问题。因此,本可选实现方式中,结合抢占配置信息确定是否执行部分感知,实现了UE的最大限度的节能,符合UE节电机制的要求。
作为一个具体的实现方式,根据资源池的抢占配置信息,或者,根据所述抢占配置信息和所述业务包的优先级,确定是否执行部分感知,包括:
在下述任一种情况下,确定执行部分感知:
所述抢占配置信息为使能(enable);
所述抢占配置信息为优先级门限值;
所述抢占配置信息为使能且所述业务包优先级被确定为非最高优先级;
所述抢占配置信息为优先级门限值且所述业务包优先级被确定为非最高优先级。
这里,需要说明的是,在业务包将要到达的情况下,确定是否执行部分感知时,将要到达的业务包的优先级可以根据周期性业务包中,与此次将要到达的业务包相邻的前一次到达的业务包的优先级确定。
也就是说,本具体的实现方式中,UE在确定资源池的抢占配置信息为 enable的情况下,UE确定需要执行部分感知;或者,UE在确定资源池的抢占配置信息为优先级门限值的情况下,UE确定需要执行部分感知;或者,UE在确定资源池的抢占配置信息为enable,且进一步确定业务包优先级为非最高优先级的情况下,UE确定需要执行部分感知;或者,UE在确定资源池的抢占配置信息为优先级门限值,且进一步确定业务包优先级为非最高优先级的情况下,UE确定需要执行部分感知。
这里,需要说明的是,如果UE确定不对当前业务包执行资源选择/重选,而仅对当前业务执行抢占检查,此时进行检查的过程可以采用本公开所述的确定对业务包执行资源选择/重选时,所采用的方法中除去资源选择的步骤的过程。
具体的,如图4所示,为本公开实施例执行部分感知的示意图之二,其中,图4为在抢占配置信息为使能或优先级门限值(具体优先级值)且UE发送业务包优先级为非最高优先级的情况下,执行部分感知的示意图。具体的,图4中的虚线框示意了对预期n+p时刻到达的业务包不进行资源重选、抢占配置信息为enable或具体优先级数值且UE发送业务非最高优先级的情况下,执行部分感知。
作为另一个具体的实现方式,根据资源池的抢占配置信息,或者,根据所述抢占配置信息和所述业务包的优先级,确定是否执行部分感知,包括:
在下述任一种情况下,确定不执行部分感知:
未提供或未配置抢占配置信息;即:sl-PreemptionEnable-r16未配置或者未提供;
所述抢占配置信息为不使能(disable);
所述抢占配置信息为使能且所述业务包的优先级被确定为最高优先级;
所述抢占配置信息为优先级门限值且所述业务包的优先级被确定为最高优先级。
同样的,在业务包将要到达的情况下,确定是否执行部分感知时,将要到达的业务包的优先级可以根据与此次将要到达的业务包相邻的前一次到达的业务包的优先级确定。
具体的,如图3所示,为本公开实施例执行部分感知的示意图之一;其 中,图3为在未提供或未配置抢占配置信息或UE发送业务为最高的情况下,不执行部分感知的示意图;具体的,图3中的虚线框示意了对预期n+p时刻到达的业务包不进行资源重选、未提供或未配置抢占配置信息或UE发送业务为最高的情况下,不执行部分感知。
上述可选实施方式和两个具体实施方式,实现了结合抢占配置信息确定周期性业务包发送时,对到达的每个业务包都执行部分感知或者仅对部分业务包执行部分感知,实现了UE最大限度的节电。
作为一个可选的实现方式,确定部分感知时机,包括:
确定执行部分感知对应的周期值集合;
根据第一候选资源集合和所述周期值集合,确定执行所述部分感知的资源;
其中,所述第一候选资源集合包括下述任一项:
预先确定的Y个时域候选资源;
根据已进行资源选择/重选时确定的Y个时域候选资源,按照资源预约周期进行映射、得到的所述业务包的到达时刻之后且距离所述业务包到达时刻最近的Y个时域候选资源。
也就是说,Y个时域候选资源可以预先确定的时域候选资源,也可以是根据已进行资源选择/重选时确定的Y个时域候选资源映射的资源。
本可选实现方式中,UE根据预先确定的、即将进行资源选择/重选的Y个时域候选资源,或者,UE上次进行资源选择/重选时确定的Y个时域候选资源、对应在即将到达的业务包之后的时域位置,对于上述时域资源,按照需要执行周期性partial sensing对应的周期值集合确定执行部分感知的资源,如此,能够实现对业务包到达时刻到第一候选时域资源时刻之间的资源的感知,避免由于感知结果缺失造成数据传输可靠性下降的情况,确保节电机制下的数据传输可靠性。
这里,需要说明的是,确定的执行部分感知的资源可以是周期性部分感知资源中,按照sl-ResourceReservePeriodList-r16参数确定的,位于Y个时域候选资源之前的一个或多个周期的资源。
作为一个具体的实现方式,根据第一候选资源集合和所述周期值集合, 确定执行所述部分感知的资源,包括:
根据所述周期值集合,确定执行所述部分感知的资源为在第一时刻之前且与所述第一候选资源集合对应的最近的一个周期的资源;
其中,所述第一时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
这里,需要说明的是,ty0可以以系统支持的基本时间单位进行表示,例如NR-V2X Release 16中的物理时隙或者逻辑时隙或者资源池内的时隙等。
这里,还需要说明的是,处理时延可以由感知结果处理时间Tproc,0、资源选择及发送时间Tproc,1和资源选择窗前沿确定参数T1中的至少一个确定。具体的,处理时延可以是下述任一项:
Tproc,1;
T1;
Tproc,0+Tproc,1;
Tproc,0+T1;
Tproc,1+1;
T1+1;
(Tproc,0+Tproc,1)+1;
(Tproc,0+T1)+1;
其中,上述公式中的“1”为一个时间单元,因此,处理时延还可以为一个时间单元,时间单元可以为正交频分复用技术(Orthogonal Frequency Division Multiplexing,OFDM)符号、物理时隙、逻辑时隙、资源池内的时隙、物理子帧、逻辑子帧或者资源池内的子帧、ms等;
上述公式中的Tproc,0、Tproc,1、T1等参数,其单位均为直通链路定义的时间单元,例如OFDM符号、物理时隙、逻辑时隙、资源池内的时隙、物理子帧、逻辑子帧或者资源池内的子帧、ms等。
因此,第一时刻可以为:业务包到达时刻;ty0;ty0-Tproc,1;ty0-T1;ty0-(Tproc,0+Tproc,1);ty0-(Tproc,0+T1);ty0-1;ty0-Tproc,1-1;ty0-T1-1;ty0-(Tproc,0+Tproc,1)-1和ty0-(Tproc,0+T1)-1中的任一个,其中的参数可以为不同名称、取值相同的其他参数名称,例如,所述处理时延对应上述T1时、可以等同于表示为T4且T4=T1。
本可选实现方式中,通过确定执行所述部分感知的资源为在第一时刻之前且与所述第一候选资源集合对应的最近的一个周期的资源;实现了对位于业务包到达时刻到第一候选时域资源时刻之间的资源进行部分感知,避免了感知结果缺失导致数据传输可靠性下降的现象。
作为一个可选的实现方式,确定需要执行周期性部分感知对应的周期值集合,包括:
根据预配置或网络配置的用于确定部分感知时机的周期值参数,确定所述周期值集合;
图6为资源预约周期列表信息sl-ResourceReservePeriodList-r16={13,50,100}且获取到周期值参数(指示Preserve的参数)={50,100}的情况下,得到的周期值集合,所确定的执行所述部分感知的资源(仅示意了与第一候选资源集合对应的最近的一个周期的资源)。
或者,在未获取到预配置或网络配置的用于确定部分感知时机的周期值参数的情况下,根据资源池配置参数中包含的资源预约周期列表信息确定所述周期值集合。这样,可以在不引入新的专用于部分感知的周期配置信令的情况下,实现部分感知时机的确定。
图5为资源预约周期列表信息sl-ResourceReservePeriodList-r16={13,50,100}、未获取到周期值参数(指示Preserve的参数)的情况下,得到的周期值集合,所确定的执行所述部分感知的资源(仅示意了与第一候选资源集合对应的最近的一个周期的资源)。
本可选实现方式中,UE确定具体的部分感知时机时,若配置了部分感知专用信令,则采用专用信令确定周期值集合;若未配置专用信令,则按照资源池配置信令中支持的周期值执行。
作为一个可选的实现方式,所述周期值参数指示的周期值为所述资源池 配置参数中包含的资源预约周期列表所指示的周期值的部分或者全部。
也就是说,本公开实施例中,执行部分感知的资源可以与资源池支持的周期性部分感知的资源相同,或者,为资源池支持的周期性部分感知的资源中的一部分。
本公开实施例的资源选择方法,通过在执行部分感知时,根据第一时刻确定部分感知时机,实现了对业务包到达时刻与第一个候选时域资源所在时刻之间的资源进行感知,避免了必要的感知结果缺失导致数据传输可靠性下降的现象,确保了传输的可靠性。
进一步地,作为一个可选的实现方式,该方法还包括:
步骤一:在资源选择触发时刻确定第一资源选择窗;
步骤二:在所述第一资源选择窗内进行资源选择;
其中,所述资源选择触发时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
这里,需要说明的是,ty0可以以系统支持的基本时间单位进行表示,例如NR-V2X Release 16中的物理时隙或者逻辑时隙或者资源池内的时隙等。
这里,还需要说明的是,处理时延可以由感知结果处理时间Tproc,0、资源选择及发送时间Tproc,1和资源选择窗前沿确定参数T1中的至少一个确定。具体的,处理时延可以是下述任一项:Tproc,1;T1;Tproc,0+Tproc,1;Tproc,0+T1;Tproc,1+1;T1+1;(Tproc,0+Tproc,1)+1;(Tproc,0+T1)+1;其中,上述公式中的“1”为一个时间单元,因此,处理时延还可以为一个时间单元,时间单元可以为OFDM符号、物理时隙、逻辑时隙、资源池内的时隙、物理子帧、逻辑子帧或者资源池内的子帧、ms等。
上述公式中的Tproc,0、Tproc,1、T1等参数,其单位均为直通链路定义的时间单元,例如OFDM符号、物理时隙、逻辑时隙、资源池内的时隙、物理子帧、逻辑子帧或者资源池内的子帧、ms等。
因此,资源选择触发时刻可以为:业务包到达时刻;ty0;ty0-Tproc,1;ty0-T1;ty0-(Tproc,0+Tproc,1);ty0-(Tproc,0+T1);ty0-1;ty0-Tproc,1-1;ty0-T1-1;ty0-(Tproc,0+Tproc,1)-1和ty0-(Tproc,0+T1)-1中的任一个,其中的参数可以为不同名称、取值相同的其他参数名称,例如,所述处理时延对应上述T1时、可以等同于表示为T4且T4=T1。
作为一个具体的实现方式,所述第一资源选择窗的前沿时刻为m+T1,所述第一资源选择窗的后沿时刻为m+T2;或者,所述第一资源选择窗的前沿时刻为n+T1,所述第一资源选择窗的后沿时刻为n+T2;其中,m为资源选择触发时刻,n为业务包到达时刻,T1为资源选择窗前沿确定参数,T2为资源选择窗后沿确定参数。
这里,需要说明的是,在资源选择触发时刻为业务包到达时刻的情况下,确定第一资源选择窗的前沿时刻为n+T1,所述第一资源选择窗的后沿时刻为n+T2;在资源选择触发时刻不是业务包到达时刻的情况下,确定第一资源你选择窗的前沿时刻为m+T1,所述第一资源选择窗的后沿时刻为m+T2;或者,所述第一资源选择窗的前沿时刻为n+T1,所述第一资源选择窗的后沿时刻为n+T2。
进一步地,如图7所示,作为一个可选的实现方式,在所述资源选择触发时刻为所述业务包到达时刻的情况下,在所述第一资源选择窗内进行资源选择之后,所述方法还包括:
确定资源选择检查时刻(如图7中的ty0-T1时刻),在所述资源选择检查时刻,进行基于感知的资源排除;
在已选资源被排除的情况下,进行资源重选;
所述资源选择检查时刻为下述任一项:
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
这里,还需要说明的是,处理时延可以由感知结果处理时间Tproc,0、资源选择及发送时间Tproc,1和资源选择窗前沿确定参数T1中的至少一个确定。具 体的,处理时延可以是下述任一项:Tproc,1;T1;Tproc,0+Tproc,1;Tproc,0+T1;Tproc,1+1;T1+1;(Tproc,0+Tproc,1)+1;(Tproc,0+T1)+1;其中,上述公式中的“1”为一个时间单元,另外,处理时延还可以为一个时间单元,时间单元可以为OFDM符号、物理时隙、逻辑时隙、资源池内的时隙、物理子帧、逻辑子帧或者资源池内的子帧、ms等。
上述公式中的Tproc,0、Tproc,1、T1等参数,其单位均为直通链路定义的时间单元,例如OFDM符号、物理时隙、逻辑时隙、资源池内的时隙、物理子帧、逻辑子帧或者资源池内的子帧、ms等。
此外,还需要说明的是,确定资源选择检查时刻并在资源选择检查时刻进行已选资源的检查,是因为虽然定义了部分感知时可以基于预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0或者至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻进行部分感知时机的确定,但如果将资源选择触发时刻确定为业务包到达时刻,并不能确保所有的部分感知结果被充分使用以避免碰撞,因此需要针对该特定实现方式额外定义资源选择检查时刻,从而确定所有的部分感知结果可以被充分使用。
因此,资源选择触发时刻可以为:ty0;ty0-Tproc,1;ty0-T1;ty0-(Tproc,0+Tproc,1);ty0-(Tproc,0+T1);ty0-1;ty0-Tproc,1-1;ty0-T1-1;ty0-(Tproc,0+Tproc,1)-1和ty0-(Tproc,0+T1)-1中的任一个,其中的参数可以为不同名称、取值相同的其他参数名称,例如,所述处理时延对应上述T1时、可以等同于表示为T4且T4=T1。
具体的,本公开实施例中,确定资源选择检查时刻,在所述资源选择检查时刻,进行基于感知的资源排除,包括:
用户设备的物理层确定资源选择检查时刻,在所述资源选择检查时刻,进行基于感知的资源排除;
用户设备的MAC确定资源选择检查时刻,并触发用户设备的物理层在所述资源选择检查时刻,进行基于感知的资源排除。
也就是说,本公开实施例中,可以由物理层确定资源选择检查时刻,也可以由MAC层确定资源选择检查时刻;在物理层确定资源选择检查时刻的 情况下,物理层可以在资源选择检查时刻进行基于感知的资源排除,在由MAC层确定资源选择检查时刻的情况下,MAC层触发用户设备的物理层在所述资源选择检查时刻,进行基于感知的资源排除,如此避免了MAC层和物理层之间的多次交互,实现了UE的节电和可靠性的均衡。
进一步地,物理层在所述资源选择检查时刻,进行基于感知的资源排除之后,物理层将排除结果上报至MAC层;MAC层根据所述排除结果确定已选资源是否被排除;MAC层确定已选资源被排除的情况下,进行资源重选。
作为一个可选的实现方式,如图8和图9所示,所述方法还包括:在所述资源选择检查时刻之前,执行持续部分感知。
本可选实现方式中,通过在资源选择检查时刻之前,执行持续部分感知,避免了必要的感知结果缺失导致数据传输可靠性下降的现象,确保了节电机制下的传输可靠性。
具体的,本可选实施方式中,在用户设备的MAC层确定资源选择检查时刻的情况下,在所述资源选择检查时刻之前,执行持续部分感知,具体包括:用户设备的MAC层触发用户设备的物理层在资源选择检查时刻之前,执行持续感知;
或者,在用户设备的物理层确定资源选择检查时刻的情况下,在所述资源选择检查时刻之前,执行持续部分感知,具体包括:物理层在资源选择检查时刻之前,执行持续感知。
作为一个可选的实现方式,所述方法还包括:
在所述资源选择触发时刻之前,执行持续部分感知。如此,避免了必要的感知结果缺失导致数据传输可靠性下降的现象,确保了节电机制下的传输可靠性。
作为一个可选的实现方式,所述方法还包括:
在确定需要触发资源选择/重选的情况下,执行以下步骤:
确定第二资源选择窗;
在所述第二资源选择窗内进行资源选择。
具体的,所述第二资源选择窗的前沿时刻为p+T1,所述第二资源选择窗的后沿时刻为p+T2;
其中,p为资源选择窗参考时刻,T1为资源选择窗前沿确定参数,T2为资源选择窗后沿确定参数;
其中,所述资源选择窗参考时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
这里,需要说明的是,处理时延可以由感知结果处理时间Tproc,0、资源选择及发送时间Tproc,1和资源选择窗前沿确定参数T1中的至少一个确定。具体的,处理时延可以是下述任一项:Tproc,1;T1;Tproc,0+Tproc,1;Tproc,0+T1;Tproc,1+1;T1+1;(Tproc,0+Tproc,1)+1;(Tproc,0+T1)+1;其中,上述公式中的“1”为一个时间单元,另外,处理时延还可以为一个时间单元,时间单元可以为OFDM符号、物理时隙、逻辑时隙、资源池内的时隙、物理子帧、逻辑子帧或者资源池内的子帧、ms等。
上述公式中的Tproc,0、Tproc,1、T1等参数,其单位均为直通链路定义的时间单元,例如OFDM符号、物理时隙、逻辑时隙、资源池内的时隙、物理子帧、逻辑子帧或者资源池内的子帧、ms等。
因此,资源选择窗参考时刻可以为:业务包到达时刻;ty0;ty0-Tproc,1;ty0-T1;ty0-(Tproc,0+Tproc,1);ty0-(Tproc,0+T1);ty0-1;ty0-Tproc,1-1;ty0-T1-1;ty0-(Tproc,0+Tproc,1)-1和ty0-(Tproc,0+T1)-1中的任一个,其中的参数可以为不同名称、取值相同的其他参数名称,例如,所述处理时延对应上述T1时、可以等同于表示为T4且T4=T1。
这里,还需要说明的是,资源选择窗参考时刻用于确定资源选择窗,具体可由用户设备的物理层自行确定,或者,用户设备的MAC层指示,或者,与业务包达到时刻相同,或者,与资源选择触发时刻相同,或者,与物理层确定的资源排除执行时刻,或者,与物理层确定的资源选择检查时刻相同,但并不限于以上情况。
进一步地,作为一个可选的实现方式,所述方法还包括:
在确定执行部分感知的情况下,在第二时刻之后,持续执行资源感知至重评估判断和/或抢占判断结束;如此,避免了必要的感知结果缺失导致数据传输可靠性下降的现象。
其中,所述第二时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
这里,需要说明的是,处理时延可以由感知结果处理时间Tproc,0、资源选择及发送时间Tproc,1和资源选择窗前沿确定参数T1中的至少一个确定。具体的,处理时延可以是下述任一项:Tproc,1;T1;Tproc,0+Tproc,1;Tproc,0+T1;Tproc,1+1;T1+1;(Tproc,0+Tproc,1)+1;(Tproc,0+T1)+1;其中,上述公式中的“1”为一个时间单元,因此,处理时延还可以为一个时间单元,时间单元可以为OFDM符号、物理时隙、逻辑时隙、资源池内的时隙、物理子帧、逻辑子帧或者资源池内的子帧、ms等。
上述公式中的Tproc,0、Tproc,1、T1等参数,其单位均为直通链路定义的时间单元,例如OFDM符号、物理时隙、逻辑时隙、资源池内的时隙、物理子帧、逻辑子帧或者资源池内的子帧、ms等。
因此,第二时刻可以为:业务包到达时刻;ty0;ty0-Tproc,1;ty0-T1;ty0-(Tproc,0+Tproc,1);ty0-(Tproc,0+T1);ty0-1;ty0-Tproc,1-1;ty0-T1-1;ty0-(Tproc,0+Tproc,1)-1和ty0-(Tproc,0+T1)-1中的任一个,其中的参数可以为不同名称、取值相同的其他参数名称,例如,所述处理时延对应上述T1时、可以等同于表示为T4且T4=T1。
本公开实施例的资源选择方法,实现了:一者,UE根据资源池的抢占配置信息,确定周期性业务包发送时,对到达的每个业务包都执行部分感知,或者进队部分业务包执行部分感知;二者,在配置了专用于部分感知的周期配置信令的情况下,根据该指令确定周期值集合,确定部分感知时机;在未配置该指令的情况下,按照资源池配置信令中支持的周期值确定部分感知时 机,使得用户设备在未引入该指令的情况下,也能确定部分感知时机;三者,UE在业务包到达,需要执行资源选择时,确定资源选择触发时刻或资源选择检查时刻;四者,如果UE在业务包到达时刻执行资源选择或者资源排除时,在第一个候选时域资源所在时刻或者考虑处理时间的第一个候选时域资源所在时刻之前的时刻,再次进行资源排除,判断是否需要进行资源重选;五者,如果UE在业务包到达时刻执行资源选择或者资源排除时,在第一个候选时域资源所在时刻或者考虑处理时间的第一个候选时域资源所在时刻之前时刻,执行连续短时sensing后,再次进行资源排除,判断是否需要进行资源重选;六者,用户设备支持不需要MAC层和物理层多次层间交互的情况下,实现节电和可靠性的均衡。
如图10所示,本公开实施例还提供一种资源选择装置,应用于用户设备,所述装置包括:
第一确定模块1001,用于在业务包到达或者所述业务包将要到达的情况下,确定是否需要触发资源选择/重选。
本公开实施例的资源选择装置,第一确定模块1001通过在业务包到达或者所述业务包将要到达的情况下,确定是否需要触发资源选择/重选。解决了目前没有对节电需求下的资源选择方法的具体过程的定义的问题,实现了对资源分配过程中,节电机制下资源业务包到达或者业务包将要到达情况下触发资源选择/重选的确定过程的明确,实现了资源分配过程的规范化。
进一步地,所述第一确定模块1001还用于:在所述业务包到达或者所述业务包将要到达的情况下,确定是否执行部分感知;和/或,确定部分感知时机。
可选地,所述第一确定模块1001包括:
第一确定子模块,用于在确定需要对所述业务包触发资源选择/重选的情况下,确定执行部分感知;
第二确定子模块,用于在确定不需要对所述业务包触发资源选择/重选的情况下,根据资源池的抢占配置信息,或者,根据所述抢占配置信息和所述业务包的优先级,确定是否执行部分感知。
可选地,所述第二确定子模块具体用于:
在下述任一种情况下,确定执行部分感知:
所述抢占配置信息为使能;
所述抢占配置信息为优先级门限值;
所述抢占配置信息为使能且所述业务包优先级被确定为非最高优先级;
所述抢占配置信息为优先级门限值且所述业务包优先级被确定为非最高优先级。
可选地,所述第二确定子模块具体用于:
在下述任一种情况下,确定不执行部分感知:
未提供或未配置抢占配置信息;
所述抢占配置信息为不使能;
所述抢占配置信息为使能且所述业务包的优先级被确定为最高优先级;
所述抢占配置信息为优先级门限值且所述业务包的优先级被确定为最高优先级。
可选地,所述第一确定模块1001包括:
第三确定子模块,用于确定执行部分感知对应的周期值集合;
第四确定子模块,用于根据第一候选资源集合和所述周期值集合,确定执行所述部分感知的资源;
其中,所述第一候选资源集合包括下述任一项:
预先确定的Y个时域候选资源;
根据已进行资源选择/重选时确定的Y个时域候选资源,按照资源预约周期进行映射、得到的所述业务包的到达时刻之后且距离所述业务包到达时刻最近的Y个时域候选资源。
可选地,所述第四确定子模块具体用于:
根据所述周期值集合,确定执行所述部分感知的资源为在第一时刻之前且与所述第一候选资源集合对应的最近的一个周期的资源;
其中,所述第一时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
可选地,所述第三确定子模块具体用于:
根据预配置或网络配置的用于确定部分感知时机的周期值参数,确定所述周期值集合;
或者,在未获取到预配置或网络配置的用于确定部分感知时机的周期值参数的情况下,根据资源池配置参数中包含的资源预约周期列表信息确定所述周期值集合。
可选地,所述周期值参数指示的周期值为所述资源池配置参数中包含的资源预约周期列表所指示的周期值的部分或者全部。
进一步地,所述装置还包括:
第一执行模块,用于在确定需要触发资源选择/重选的情况下,执行以下步骤:
在资源选择触发时刻确定第一资源选择窗;
在所述第一资源选择窗内进行资源选择;
其中,所述资源选择触发时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
可选地,所述第一资源选择窗的前沿时刻为m+T1,所述第一资源选择窗的后沿时刻为m+T2;
或者,所述第一资源选择窗的前沿时刻为n+T1,所述第一资源选择窗的后沿时刻为n+T2;
其中,m为资源选择触发时刻,n为业务包到达时刻,T1为资源选择窗前沿确定参数,T2为资源选择窗后沿确定参数。
可选地,所述第一执行模块还用于:
在所述资源选择触发时刻为所述业务包到达时刻的情况下,在所述第一 资源选择窗内进行资源选择之后,确定资源选择检查时刻,在所述资源选择检查时刻,进行基于感知的资源排除;
在已选资源被排除的情况下,进行资源重选;
所述资源选择检查时刻为下述任一项:
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
可选地,所述第一执行模块还用于:
在所述资源选择检查时刻之前,执行持续部分感知。
可选地,所述第一执行模块还用于:
在所述资源选择触发时刻之前,执行持续部分感知。
进一步地,所述装置还包括:
在确定需要触发资源选择/重选的情况下,执行以下步骤:
确定第二资源选择窗;
在所述第二资源选择窗内进行资源选择。
可选地,所述第二资源选择窗的前沿时刻为p+T1,所述第二资源选择窗的后沿时刻为p+T2;
其中,p为资源选择窗参考时刻,T1为资源选择窗前沿确定参数,T2为资源选择窗后沿确定参数;
其中,所述资源选择窗参考时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
进一步地,所述装置还包括:
第三执行模块,用于在确定执行部分感知的情况下,在第二时刻之后,持续执行资源感知至重评估判断和/或抢占判断结束;
其中,所述第二时刻为下述任一项:
业务包到达时刻;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
如图11所示,本公开实施例还提供一种用户设备,包括:处理器1100;以及通过总线接口与所述处理器1100相连接的存储器1120,所述存储器1120用于存储所述处理器1100在执行操作时所使用的程序和数据,处理器1100调用并执行所述存储器1120中所存储的程序和数据。
其中,收发机1110与总线接口连接,用于在处理器1100的控制下接收和发送数据;处理器1100用于读取存储器1120中的程序执行以下步骤:
在业务包到达或者所述业务包将要到达的情况下,确定是否需要触发资源选择/重选。
本公开实施例的用户设备,处理器1100通过在业务包到达或者所述业务包将要到达的情况下,确定是否需要触发资源选择/重选。解决了目前没有对节电需求下的资源选择方法的具体过程的定义的问题,实现了对资源分配过程中,节电机制下资源业务包到达或者业务包将要到达情况下触发资源选择/重选的确定过程的明确,实现了资源分配过程的规范化。
其中,在图11中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1100代表的一个或多个处理器和存储器1120代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1110可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的终端,用户接口1130还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。处理器1100负责管理总线架构和通常的处理,存储器1120可以存储处理器1100在执行操作时所使用的数据。
需要说明的是,本公开实施例提供的用户设备是能够执行上述资源选择方法的用户设备,则上述资源选择方法的所有实施例均适用于该用户设备,且均能达到相同或相似的有益效果。
本领域技术人员可以理解,实现上述实施例的全部或者部分步骤可以通过硬件来完成,也可以通过计算机程序来指示相关的硬件来完成,所述计算机程序包括执行上述方法的部分或者全部步骤的指令;且该计算机程序可以存储于一可读存储介质中,存储介质可以是任何形式的存储介质。
另外,本公开实施例还提供一种计算机可读存储介质,可读存储介质上存储有程序,该程序被处理器执行时实现如上所述的资源选择方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,该计算机可读存储介质,如只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等。
此外,需要指出的是,在本公开的装置和方法中,显然,各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且,执行上述系列处理的步骤可以自然地按照说明的顺序或按时间顺序执行,但是并不需要一定按照时间顺序执行,某些步骤可以并行或彼此独立地执行。对本领域的普通技术人员而言,能够理解本公开的方法和装置的全部或者任何步骤或者部件,可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中,以硬件、固件、软件或者它们的组合加以实现,这是本领域普通技术人员在阅读了本公开的说明的情况下运用他们的基本编程技能就能实现的。
因此,本公开的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此,本公开的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来实现。也就是说,这样的程序产品也构成本公开,并且存储有这样的程序产品的存储介质也能构成本公开。显然,所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。
需要说明的是,应理解以上各个模块的划分仅仅是一种逻辑功能的划分,实际实现时可以全部或部分集成到一个物理实体上,也可以物理上分开。且 这些模块可以全部以软件通过处理元件调用的形式实现;也可以全部以硬件的形式实现;还可以部分模块通过处理元件调用软件的形式实现,部分模块通过硬件的形式实现。例如,各确定模块可以为单独设立的处理元件,也可以集成在上述装置的某一个芯片中实现,此外,也可以以程序代码的形式存储于上述装置的存储器中,由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起,也可以独立实现。这里所述的处理元件可以是一种集成电路,具有信号的处理能力。在实现过程中,上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如,各个模块、单元、子单元或子模块可以是被配置成实施以上方法的一个或多个集成电路,例如:一个或多个特定集成电路(Application Specific Integrated Circuit,ASIC),或,一个或多个微处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(Field Programmable Gate Array,FPGA)等。再如,当以上某个模块通过处理元件调度程序代码的形式实现时,该处理元件可以是通用处理器,例如中央处理器(Central Processing Unit,CPU)或其它可以调用程序代码的处理器。再如,这些模块可以集成在一起,以片上系统(system-on-a-chip,SOC)的形式实现。
最后,还需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者用户设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上所述是本公开的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。

Claims (20)

  1. 一种资源选择方法,应用于用户设备,所述方法包括:
    在业务包到达或者所述业务包将要到达的情况下,确定是否需要触发资源选择/重选。
  2. 根据权利要求1所述的方法,其中,所述方法还包括:在所述业务包到达或者所述业务包将要到达的情况下,确定是否执行部分感知;和/或,确定部分感知时机。
  3. 根据权利要求2所述的方法,其中,确定是否执行部分感知,包括:
    在确定需要对所述业务包触发资源选择/重选的情况下,确定执行部分感知;
    在确定不需要对所述业务包触发资源选择/重选的情况下,根据资源池的抢占配置信息,或者,根据所述抢占配置信息和所述业务包的优先级,确定是否执行部分感知。
  4. 根据权利要求3所述的方法,其中,根据资源池的抢占配置信息,或者,根据所述抢占配置信息和所述业务包的优先级,确定是否执行部分感知,包括:
    在下述任一种情况下,确定执行部分感知:
    所述抢占配置信息为使能;
    所述抢占配置信息为优先级门限值;
    所述抢占配置信息为使能且所述业务包优先级被确定为非最高优先级;
    所述抢占配置信息为优先级门限值且所述业务包优先级被确定为非最高优先级。
  5. 根据权利要求3所述的方法,其中,根据资源池的抢占配置信息,或者,根据所述抢占配置信息和所述业务包的优先级,确定是否执行部分感知,包括:
    在下述任一种情况下,确定不执行部分感知:
    未提供或未配置抢占配置信息;
    所述抢占配置信息为不使能;
    所述抢占配置信息为使能且所述业务包的优先级被确定为最高优先级;
    所述抢占配置信息为优先级门限值且所述业务包的优先级被确定为最高优先级。
  6. 根据权利要求2所述的方法,其中,确定部分感知时机,包括:
    确定执行部分感知对应的周期值集合;
    根据第一候选资源集合和所述周期值集合,确定执行所述部分感知的资源;
    其中,所述第一候选资源集合包括下述任一项:
    预先确定的Y个时域候选资源;
    根据已进行资源选择/重选时确定的Y个时域候选资源,按照资源预约周期进行映射、得到的所述业务包的到达时刻之后且距离所述业务包到达时刻最近的Y个时域候选资源。
  7. 根据权利要求6所述的方法,其中,根据第一候选资源集合和所述周期值集合,确定执行所述部分感知的资源,包括:
    根据所述周期值集合,确定执行所述部分感知的资源为在第一时刻之前且与所述第一候选资源集合对应的最近的一个周期的资源;
    其中,所述第一时刻为下述任一项:
    业务包到达时刻;
    预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
    预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
  8. 根据权利要求6所述的方法,其中,确定需要执行周期性部分感知对应的周期值集合,包括:
    根据预配置或网络配置的用于确定部分感知时机的周期值参数,确定所述周期值集合;
    或者,在未获取到预配置或网络配置的用于确定部分感知时机的周期值参数的情况下,根据资源池配置参数中包含的资源预约周期列表信息确定所述周期值集合。
  9. 根据权利要求8所述的方法,其中,所述周期值参数指示的周期值为所述资源池配置参数中包含的资源预约周期列表所指示的周期值的部分或者全部。
  10. 根据权利要求1所述的方法,其中,所述方法还包括:
    在确定需要触发资源选择/重选的情况下,执行以下步骤:
    在资源选择触发时刻确定第一资源选择窗;
    在所述第一资源选择窗内进行资源选择;
    其中,所述资源选择触发时刻为下述任一项:
    业务包到达时刻;
    预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
    至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
  11. 根据权利要求10所述的方法,其中,所述第一资源选择窗的前沿时刻为m+T1,所述第一资源选择窗的后沿时刻为m+T2;
    或者,所述第一资源选择窗的前沿时刻为n+T1,所述第一资源选择窗的后沿时刻为n+T2;
    其中,m为资源选择触发时刻,n为业务包到达时刻,T1为资源选择窗前沿确定参数,T2为资源选择窗后沿确定参数。
  12. 根据权利要求10所述的方法,其中,在所述资源选择触发时刻为所述业务包到达时刻的情况下,在所述第一资源选择窗内进行资源选择之后,所述方法还包括:
    确定资源选择检查时刻,在所述资源选择检查时刻,进行基于感知的资源排除;
    在已选资源被排除的情况下,进行资源重选;
    所述资源选择检查时刻为下述任一项:
    预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
    预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻 ty0减去处理时延的时刻。
  13. 根据权利要求12所述的方法,其中,所述方法还包括:
    在所述资源选择检查时刻之前,执行持续部分感知。
  14. 根据权利要求10所述的方法,其中,所述方法还包括:
    在所述资源选择触发时刻之前,执行持续部分感知。
  15. 根据权利要求1所述的方法,其中,所述方法还包括:
    在确定需要触发资源选择/重选的情况下,执行以下步骤:
    确定第二资源选择窗;
    在所述第二资源选择窗内进行资源选择。
  16. 根据权利要求15所述的方法,其中,所述第二资源选择窗的前沿时刻为p+T1,所述第二资源选择窗的后沿时刻为p+T2;
    其中,p为资源选择窗参考时刻,T1为资源选择窗前沿确定参数,T2为资源选择窗后沿确定参数;
    其中,所述资源选择窗参考时刻为下述任一项:
    业务包到达时刻;
    预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
    预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
  17. 根据权利要求2所述的方法,其中,所述方法还包括:
    在确定执行部分感知的情况下,在第二时刻之后,持续执行资源感知至重评估判断和/或抢占判断结束;
    其中,所述第二时刻为下述任一项:
    业务包到达时刻;
    预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0;
    预先确定的至少Y个时域候选资源中的第一个时域候选资源所在的时刻ty0减去处理时延的时刻。
  18. 一种用户设备,包括:收发机、存储器、处理器及存储在所述存储 器上并了在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现如权利要求1至17中任一项所述的资源选择方法。
  19. 一种资源选择装置,应用于用户设备,包括:
    第一确定模块,用于在业务包到达或者所述业务包将要到达的情况下,确定是否需要触发资源选择/重选。
  20. 一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至17中任一项所述的资源选择方法。
PCT/CN2022/087338 2021-05-10 2022-04-18 直通链路资源选择方法、装置及用户设备 WO2022237455A1 (zh)

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