WO2023010422A1 - 边链路协作信息的指示和接收装置以及方法 - Google Patents

边链路协作信息的指示和接收装置以及方法 Download PDF

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WO2023010422A1
WO2023010422A1 PCT/CN2021/110918 CN2021110918W WO2023010422A1 WO 2023010422 A1 WO2023010422 A1 WO 2023010422A1 CN 2021110918 W CN2021110918 W CN 2021110918W WO 2023010422 A1 WO2023010422 A1 WO 2023010422A1
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resource
resource set
terminal device
side link
resources
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PCT/CN2021/110918
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English (en)
French (fr)
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纪鹏宇
张健
王昕�
张磊
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富士通株式会社
纪鹏宇
张健
王昕�
张磊
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Priority to PCT/CN2021/110918 priority Critical patent/WO2023010422A1/zh
Publication of WO2023010422A1 publication Critical patent/WO2023010422A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiment of the present application relates to the technical field of communication.
  • Mode 1 In Rel-15 and previous versions of Vehicle to Everything (V2X, Vehicle to Everything) communication, two allocation methods of Sidelink resources are supported: Mode 1 and Mode 2.
  • Mode 1 side link resources are allocated by network devices (such as base stations); for Mode 2, terminal devices independently select transmission resources, that is, transmission resources are obtained through sensing or detection-resource selection processes.
  • New Radio (NR, New Radio) side link communication is one of the research projects of Rel-16 standardization. Compared with Long Term Evolution (LTE, Long Term Evolution) side link communication, NR side link communication requires To support many new scenarios and new services (such as remote driving, autonomous driving, and fleet driving, etc.), it is necessary to meet higher technical indicators (high reliability, low latency, high data rate, etc.).
  • LTE Long Term Evolution
  • LTE Long Term Evolution
  • NR side link communication requires To support many new scenarios and new services (such as remote driving, autonomous driving, and fleet driving, etc.), it is necessary to meet higher technical indicators (high reliability, low latency, high data rate, etc.).
  • Rel-16NR side link communication an example that may reduce the reliability of terminal devices is: due to the limited sensing range of terminal devices, the problem of hidden nodes occurs, which leads to resource collisions and reduces reliability. sex.
  • the transmitting and receiving devices transmit data to each other at the same time due to lack of cooperation, packet loss will occur due to the half-duplex characteristic of the terminal device.
  • UE A can report information including but not limited to resources obtained through sensing and its own transmission resources to UE B, and UE B will consider the resources reported by UE A in its own resource selection or reselection process .
  • embodiments of the present application provide an apparatus and method for indicating and receiving side link cooperation information.
  • a method for indicating side link cooperation information including:
  • the first terminal device monitors at least one resource in the resource set
  • a reselection indication is sent to the second terminal device in a corresponding first time slot before the first resource.
  • an apparatus for indicating side link cooperation information which is configured on a first terminal device, and the apparatus includes:
  • a monitoring unit which monitors at least one resource in the resource set
  • a determining unit which determines whether it is monitored that the first resource in the resource set partially or completely overlaps with one or more second resources reserved by other terminal devices;
  • a sending unit which sends a reselection indication to the second terminal device in the corresponding first time slot before the first resource when the first resource partially or completely overlaps with the one or more second resources .
  • a method for receiving side link cooperation information including:
  • the second terminal device monitors in a corresponding time slot preceding each resource in the set of resources.
  • the reselection indication sent by the first terminal device is detected in the first time slot, reselect the first resource corresponding to the first time slot.
  • an apparatus for receiving side link cooperation information which is configured in a second terminal device, and the apparatus includes:
  • a monitoring unit that monitors in a corresponding time slot preceding each resource in the resource set
  • a processing unit configured to perform reselection on the first resource corresponding to the first time slot when monitoring the reselection indication sent by the first terminal device in the first time slot.
  • a method for indicating side link cooperation information including:
  • the first terminal device sends the resource set to the second terminal device
  • an apparatus for indicating side link cooperation information which is configured on a first terminal device, and the apparatus includes:
  • a sending unit which sends the resource set to the second terminal device
  • a determining unit which determines whether the resource set is invalid
  • the sending unit further sends an invalidation indication to the second terminal device when it is determined that the resource set is invalid.
  • the first terminal device monitors at least one resource in the resource set; when the first resource in the resource set is monitored and one or more second resources reserved by other terminal devices In the case of partial or complete overlap, the first terminal device sends a reselection indication to the second terminal device in the corresponding first time slot before the first resource.
  • resource re-evaluation can be performed through the cooperation information of the first terminal device, so that the reliability gain brought about by device cooperation can be obtained promote.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of side link resource selection performed by a terminal device
  • Fig. 3 is an example diagram of the resource reassessment process
  • FIG. 4 is an example diagram of a resource preemption detection process
  • FIG. 5 is a scene example diagram of an embodiment of the present application.
  • FIG. 6 is an example diagram of the collaboration information used in the embodiment of the present application.
  • FIG. 7 is another example diagram of the collaboration information used in the embodiment of the present application.
  • FIG. 8 is a schematic diagram of a method for indicating side link cooperation information according to an embodiment of the present application.
  • FIG. 9 is an example diagram of side link cooperation information according to an embodiment of the present application.
  • FIG. 10 is another example diagram of side link cooperation information according to the embodiment of the present application.
  • FIG. 11 is a schematic diagram of a method for receiving side link cooperation information according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a method for indicating side link cooperation information according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of a method for receiving side link cooperation information according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of an indication device of side link cooperation information according to an embodiment of the present application.
  • FIG. 15 is another schematic diagram of the device for indicating side link cooperation information according to the embodiment of the present application.
  • FIG. 16 is a schematic diagram of a device for receiving side link cooperation information according to an embodiment of the present application.
  • FIG. 17 is another schematic diagram of an apparatus for receiving side link cooperation information according to an embodiment of the present application.
  • FIG. 18 is a schematic diagram of a network device according to an embodiment of the present application.
  • FIG. 19 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or time order of these elements, and these elements should not be referred to by these terms restricted.
  • the term “and/or” includes any and all combinations of one or more of the associated listed items.
  • the terms “comprising”, “including”, “having” and the like refer to the presence of stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
  • the term “communication network” or “wireless communication network” may refer to a network conforming to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), etc.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • LTE-A Long Term Evolution-A
  • LTE- Advanced Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • High-Speed Packet Access High-Speed Packet Access
  • the communication between devices in the communication system can be carried out according to any stage of communication protocols, such as but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G , New Radio (NR, New Radio), etc., and/or other communication protocols that are currently known or will be developed in the future.
  • Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • Network equipment may include but not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller) and so on.
  • the base station may include but not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include Remote Radio Head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low-power nodes (such as femeto, pico, etc.).
  • Node B Node B
  • eNodeB or eNB evolved Node B
  • gNB 5G base station
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low-power nodes such as femeto, pico, etc.
  • base station may include some or all of their functions, each base station may provide communication coverage for a particular geographic area.
  • the term "cell” can refer to a base station and/or its coverage area depending on the context in which the term is used.
  • the term "User Equipment” (UE, User Equipment) or “terminal equipment” (TE, Terminal Equipment or Terminal Device), for example, refers to a device that accesses a communication network through a network device and receives network services.
  • a terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, etc.
  • the terminal equipment may include but not limited to the following equipment: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication equipment, handheld equipment, machine-type communication equipment, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.
  • Cellular Phone Cellular Phone
  • PDA Personal Digital Assistant
  • wireless modem wireless communication equipment
  • handheld equipment machine-type communication equipment
  • laptop computer Cordless phones
  • Cordless phones smartphones, smart watches, digital cameras, and more.
  • the terminal device can also be a machine or device for monitoring or measurement, such as but not limited to: a machine type communication (MTC, Machine Type Communication) terminal, Vehicle communication terminal, device to device (D2D, Device to Device) terminal, machine to machine (M2M, Machine to Machine) terminal, etc.
  • MTC Machine Type Communication
  • Vehicle communication terminal device to device (D2D, Device to Device) terminal
  • M2M Machine to Machine
  • network side refers to one side of the network, which may be a certain base station, or may include one or more network devices as above.
  • user side or “terminal side” or “terminal device side” refers to a side of a user or a terminal, which may be a certain UE, or may include one or more terminal devices as above.
  • device may refer to network devices or terminal devices.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a case where a terminal device and a network device are taken as examples.
  • a communication system 100 may include a network device 101 and terminal devices 102 and 103.
  • FIG. 1 only uses two terminal devices and one network device as an example for illustration, but this embodiment of the present application is not limited thereto.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communication
  • URLLC Ultra-Reliable and Low -Latency Communication
  • Fig. 1 shows that both terminal devices 102 and 103 are within the coverage of the network device 101, but the present application is not limited thereto. Neither of the two terminal devices 102 and 103 may be within the coverage of the network device 101 , or one terminal device 102 may be within the coverage of the network device 101 while the other terminal device 103 is outside the coverage of the network device 101 .
  • side link transmission can be performed between two terminal devices 102 and 103 .
  • the two terminal devices 102 and 103 may both perform side link transmission within the coverage area of the network device 101 to implement side link communication, or both may perform side link transmission outside the coverage area of the network device 101 to implement side link communication.
  • one terminal device 102 may be within the coverage of the network device 101 while the other terminal device 103 is outside the coverage of the network device 101 to perform side link transmission to realize side link communication.
  • terminal devices 102 and/or 103 can independently select side link resources (i.e., use Mode 2), in which case the side link transmission can be independent of network device 101, that is, network device 101 is optional of.
  • side link resources i.e., use Mode 2
  • this embodiment of the present application can also combine the independent selection of side link resources (that is, Mode 2) and the allocation of side link resources by the network device (that is, Mode 1); this embodiment of the present application does not limit this.
  • a terminal device can obtain side link transmission resources through a process of sensing detection + resource selection, wherein the sensing (sensing) can be performed continuously to obtain resource occupancy in the resource pool. For example, the terminal device can estimate the resource occupation situation in the next period of time (called the selection window) according to the resource occupation situation in the previous period of time (called the perception window).
  • FIG. 2 is a schematic diagram of side link resource selection by a terminal device.
  • the terminal device passes through (n-1000)th to (n-1)th subframes or time slots (ie sensing window, sensing window ) and the detection of time-frequency resource reference signals at different locations, the resource occupancy of the sensing window can be obtained, and then the (n+T1)th to (th Resource occupancy of n+T2) subframes or time slots (ie selection window, selection window).
  • the physical layer of the terminal device obtains a resource selection granularity R x,y from a high layer (such as a media access control (MAC, Media Access Control) layer); the granularity may represent a subframe A series of continuous sub-channels within each sub-channel, each including more than one continuous physical resource block (PRB, Physical Resource Block), the number of PRBs can be determined by the resource pool, and the resource pool is configured or pre-configured by a network device (such as a base station) Configuration; a set of resources of size R x, y in all subframes in the entire selection window (hereinafter referred to as R x, y candidate resources) is initialized and defined as Set A.
  • a network device such as a base station
  • the terminal device may exclude part of candidate resources in Set A (candidate resource set) according to the detection result within the sensing window before the data to be sent arrives. For example, in Rel-16 NR side link communication, the following R x,y candidate resources need to be excluded:
  • DMRS demodulation reference signal
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink shared channel
  • RSRP Reference Signal Received Power
  • Th(prio RX ) the value of Th(prio RX ) corresponds to The high-level parameter ThresRSRP_pi_pj
  • p j is the priority of the data to be sent by the current UE indicated by the high-level
  • p i is the priority indicated in the detected SCI of other UEs
  • the resources here refer to the candidate resources of set A in the current selection window, and the resources at the periodic positions that may be reserved for the subsequent periods of the periodic business.
  • the RSRP threshold value is increased by 3dB, from the initial Set Re-exclude in A until the number of remaining R x, y candidate resources in Set A is greater than or equal to 20% of the initial total.
  • Step 1 The above process of obtaining the resource candidate set at the physical layer may be referred to as Step 1 (Step 1). Then, the physical layer of the terminal device can report Set B to the MAC layer. The following process of the MAC layer selecting resources in the resource candidate set may be referred to as step 2 (Step2).
  • the MAC layer randomly selects in Set B, selects a candidate resource and generates a grant for this transmission.
  • a modulation and coding scheme (MCS, Modulation and Coding Scheme) is selected in the indicated resource for data transmission.
  • retransmission is configured at the MAC layer before resource selection, for example, the number of transmissions is 2, after the MAC layer selects a resource, it satisfies the time domain range that can be indicated by the initial transmission SCI in the remaining available resource set, for example ([- 31,31]) but does not include the set of other resources in the subframe where the selected resource is located, randomly select another resource and generate another grant, and select an MCS in the indicated resource for data retransmission.
  • the earlier resource in time is used to send the initial transmission data
  • the later resource in time is used to send the retransmission data.
  • Step 2 when the terminal device selects (Step 2) one or more transmission resources corresponding to the current transport block (TB) in the candidate set through the MAC layer, it needs to perform A resource re-evaluation (re-evaluation) process and/or a resource pre-emption (pre-emption) detection process, and judging the priority of side link transmission, so as to decide whether to reselect the selected resources.
  • This is mainly to eliminate possible interference from non-periodic or short-period services.
  • the resources reserved by this SCI need to be re-evaluated to determine whether the reserved resources are still available after a period of time In the candidate resource set, that is, whether it overlaps with resources occupied by other terminal devices and the measured RSRP value is greater than the corresponding threshold.
  • the resource re-evaluation process is based on obtaining a candidate resource set (Step 1) at the physical layer. If a resource is no longer in the set of candidate resources reported through the resource re-evaluation process, the resource needs to be reselected.
  • Fig. 3 is an example diagram of a resource reassessment process.
  • m1, m2, and m3 are three resources in multiple transmissions of a TB, and m2 and m3 are reserved in the indication of m1, then at the time point T3 before m1 is sent, m1, m2 need to be Perform re-evaluation with m3, if there is a resource (assumed to be m2) that is not in the set of candidate resources after resource re-evaluation, trigger resource re-selection for m2.
  • a resource preemption detection is performed on a resource that has been reserved by the SCI indication to determine whether the reserved resource is still in the candidate resource set after a period of time, that is, whether it is related to other terminals
  • the resources occupied by the devices overlap and the measured RSRP value is greater than the corresponding threshold, and the priority indicated in the SCI corresponding to the resources occupied by other terminal devices is higher than the priority of the current data to be sent.
  • the resource preemption detection process is based on obtaining a candidate resource set (Step 1) at the physical layer.
  • Fig. 4 is an example diagram of a resource preemption detection process.
  • m1, m2, and m3 are three resources in multiple transmissions of a TB, and m2 and m3 are reserved in the m1 indication.
  • Fig. 5 is a scene example diagram of the embodiment of the present application.
  • UE B wants to send side link data to UE A, and there is a UE C near UE A that UE B cannot perceive. Since UE B and UE C cannot perceive each other, the resource selected by UE B may overlap with the resource selected by UE C, so that there will be a gap between the data sent by UE B to UE A and the data sent by UE C to UE A. interfere. That is, UE C, as a hidden node of UE B, may interfere with the data transmission from UE B to UE A.
  • the resource occupation and reservation status of UE C can be obtained by UE A through the sensing process. If UE A can send the resource usage of UE C to UE B as a set of resources (which can be called cooperation information or auxiliary information), then UE B can exclude these resources occupied by UE C during its resource selection process, and can Reduce the probability of resource collision and increase the reliability of side link transmission.
  • UE A can send the resource usage of UE C to UE B as a set of resources (which can be called cooperation information or auxiliary information)
  • UE B can exclude these resources occupied by UE C during its resource selection process, and can Reduce the probability of resource collision and increase the reliability of side link transmission.
  • the resource set reported by UE A may include one or more preferred resources, or may include one or more non-preferred resources.
  • UE B considers one or more resources in the resource set reported by UE A during its aforementioned resource selection process.
  • FIG. 6 is an example diagram of collaboration information used in the embodiment of the present application, and a preferred resource set is taken as an example for illustration. For example, if the resource set reported by UE A is marked as "preferred", UE B will intersect the candidate resource set (set B) obtained by itself through sensing with the resource set (set A) reported by UE A during the resource selection process , randomly select one or more resources for data transmission in the intersection of the two.
  • UE B additionally excludes these resources in set A from set B, and the remaining candidate resource sets after exclusion Randomly select one or more resources for data transmission.
  • indication information for example, a reselection indication
  • scheme 2 a scheme of cooperation information
  • UE A does not directly report preferred or non-preferred resource sets, but UE A can report resources to UE B when it detects that UE B collides with resources reserved by another UE (such as UE C)
  • the reselection indication triggers UE B to perform resource reselection.
  • FIG. 7 is another example diagram of the use of cooperation information in the embodiment of the present application, and a reselection indication is taken as an example for illustration.
  • UE A may send a reselection indication (for example, 1 bit) to UE B.
  • the trigger conditions for UE A to report the reselection indication used to indicate resource collision include: the reserved resources of UE C and the reserved resources of UE B partially or completely overlap; in addition, it may also include: the priority value corresponding to the reserved resources of UE C Less than the reserved resources of UE B (the smaller the priority value, the higher the priority), and/or, the RSRP detected by the DMRS corresponding to the PSCCH or PSSCH of UE C is greater than the threshold.
  • UE A reports its "preferred” or “non-preferred” resources
  • UE B can consider the cooperation information during the resource selection process, and preferentially select "preferred” resources and/or Excluding "non-preferred” resources makes the selected resources highly reliable and less likely to collide with resources selected by other devices.
  • frequent reporting may lead to large system overhead and more resources for collaboration information; in addition, if the resource set is not updated for a long time, the status of the resources in the reported resource set may change over time, thereby reducing resource reliability.
  • the number of bits required for reporting the indication information is relatively small, which will not cause too much overhead.
  • the reselection indication reported in the above scheme 2 must depend on the resource reservation information in the SCI sent by UE B, and the reselection indication is performed for the resources that have been reserved by UE B. That is, for these resources that are not reserved by UE B, resource re-evaluation (re-evaluation) cannot be performed through the cooperation information of UE A, so UE A cannot be triggered to send the corresponding reselection indication, and thus the benefits brought by device cooperation cannot be obtained. Reliability gain.
  • PSFCH and “Sidelink Feedback Channel” can be interchanged without causing confusion
  • PSCCH and “Sidelink Control Channel” or “Sidelink Control Information” are interchangeable, as are the terms “PSSCH” and “sidelink data channel” or “sidelink data”.
  • sending (transmitting) or receiving (receiving) PSCCH can be understood as sending or receiving side link control information carried by PSCCH
  • sending or receiving PSSCH can be understood as sending or receiving side link data carried by PSSCH
  • sending or receiving PSFCH can be understood as sending or receiving side link feedback information carried by PSFCH.
  • Sidelink transmission (Sidelink transmission, also referred to as sidelink transmission) can be understood as PSCCH/PSSCH transmission or sidelink data/information transmission.
  • the embodiment of the present application provides a method for indicating side link cooperation information, which is described from the first terminal device (UE A). Wherein the first terminal device sends cooperation information to the second terminal device.
  • Fig. 8 is a schematic diagram of a method for indicating side link cooperation information according to an embodiment of the present application. As shown in Figure 8, the method includes:
  • the first terminal device monitors at least one resource in the resource set
  • the first terminal device determines whether it is monitored that the first resource in the resource set partially or completely overlaps with one or more second resources reserved by other terminal devices;
  • the first terminal device sends a message to the second terminal device in the corresponding first time slot before the first resource Send reselection indication.
  • the resource set may be a resource set formed by the first terminal device (UE A) through self-perception, or may be a pre-agreed resource set between the first terminal device (UE A) and the second terminal device (UE B).
  • a consistent set of resources the application is not limited thereto.
  • the resource set includes but is not limited to one of the following resources: resources sent for the first time, resources with an interval of more than 31 slots (slots) from the previous resource sent, resources reselected due to preemption, priority, etc. resource.
  • the first terminal device may report a reselection indication to the second terminal device, so that the reliability gain brought about by device cooperation can be further obtained.
  • the reselection indication is carried by a Physical Sidelink Feedback Control Channel (PSFCH).
  • PSFCH Physical Sidelink Feedback Control Channel
  • UE A can pre-determine a resource set agreed with UE B, and then UE A continuously monitors the resources in the resource set. For complete overlap, UE A reports a reselection indication to UE B through PSFCH in the corresponding time slot before this resource; the corresponding time slot may be a time slot that satisfies the processing time (eg T3) before the resource.
  • T3 processing time
  • the first terminal device may send the resource set to the second terminal device.
  • the resource set includes resources preferred by the first terminal device.
  • UE A when UE B triggers UE A to report a resource set during resource selection, UE A can use part or all of the resource set formed through sensing as the resource set to report to UE B, and mark the resource set as "preferred ” and report to UE B.
  • UE A continues to monitor the resources in the resource set. If a resource in the set overlaps partially or completely with the resources reserved by other terminal equipment, UE A sends a message to the corresponding time slot before this resource through PSFCH UE B reports a reselection indication; the corresponding time slot may be a time slot that satisfies the processing time (for example, T3) before the resource.
  • the processing time for example, T3
  • the resource set is carried in the first-level side link control information (1 st SCI) sent in the physical side link control channel (PSCCH), or carried in the physical side link shared channel ( In the second-level side link control information (2 nd SCI) sent in the PSSCH), or carried in the medium access control (MAC) control element (CE) sent in the physical side link shared channel (PSSCH), or Carried in a Radio Resource Control (RRC) message sent in the Physical Sidelink Shared Channel (PSSCH).
  • 1 st SCI sent in the physical side link control channel (PSCCH)
  • 2 nd SCI sent in the PSSCH
  • MAC medium access control
  • CE control element
  • PSSCH Physical side link shared channel
  • RRC Radio Resource Control
  • processing time is T3, and the present application is not limited thereto.
  • the priority value of the first resource is greater than the priority value of the second resource, and/or, the RSRP detection value corresponding to the second resource is greater than a threshold, and/or, the channel The detected value of the busy rate (CBR) is greater than the threshold value, and/or the detected value of the channel busy rate (CBR) is less than or equal to the threshold value.
  • UE A reports the reselection indication only when one or more of the above conditions are additionally met.
  • additional restrictions can be added to the reporting conditions of UE A, thereby further avoiding too frequent reporting and reducing resource overhead.
  • FIG. 9 is an example diagram of side link cooperation information according to the embodiment of the present application.
  • UE B triggers UE A to report a resource set during resource selection (as shown in 901), and UE A can use part or all of the resource set obtained through sensing as the resource set reported to UE B , specifically including but not limited to including resources whose measured RSRP results are less than or equal to the threshold in the resource set, marking the resource set as "preferred" and reporting it to UE B (as shown in 902).
  • UE A can monitor the SCI from UE B and other terminal devices, if a reserved resource indicated by the SCI from UE B (as shown in 903) partially or completely overlaps with resources reserved by other terminal devices , UE A reports a reselection indication to UE B through PSFCH in the corresponding time slot (as shown in 904) before this resource; A slot of time (eg T3).
  • UE B can perform resource reselection according to the reselection indication.
  • scheme 1 and scheme 2 can be combined. That is, when UE B performs initial resource selection, it triggers UE A to report the "preferred" resource set. After UE B performs resource selection, if UE A detects that UE B's reserved resources are partially or fully overlap, then UE A can send a reselection instruction to UE B for a period of time before UE B indicates the reserved resources (such as the latest feedback opportunity before processing time T3), and UE B can trigger resource reselection, similar to The preemption detection process of UE B. In this way, system reliability can be guaranteed under the condition that the overhead is not too large.
  • Fig. 10 is another example diagram of side link cooperation information according to the embodiment of the present application.
  • UE B triggers UE A to report a resource set during resource selection (as shown in 1001), and UE A can use a part or all of the resources of the resource set formed through sensing as the resource set reported to UE B , and mark the resource set as "preferred" and report it to UE B (as shown in 1002).
  • UE A continues to monitor the resources in the resource set. If a resource in the set (as shown in 1003) partially or completely overlaps with resources reserved by other terminal devices, UE A will be in front of this resource.
  • the corresponding time slot (as shown in 1004) reports the reselection indication to UE B through PSFCH; the corresponding time slot (as shown in 1004) may be when the processing time (such as T3) is met before the resource (as shown in 1003) Gap.
  • UE B can perform resource reselection according to the reselection indication.
  • UE A continuously monitors the resources in the resource set. Even for resources not reserved by UE B, resource re-evaluation (re-evaluation) can be performed through UE A's cooperation information, so as to further obtain the gains brought by device cooperation and further improve reliability.
  • the first terminal device monitors side-link control information from said second terminal device; determines whether side-link control information or received side-link control information from said second terminal device is received whether the message contains a reserved resource indication (subsequent resource indication); and
  • the first terminal device If no side link control information is received from the second terminal device or the received side link control information does not contain a reserved resource indication (subsequent resource indication), the first terminal device according to the Send the reselection indication according to the monitoring result of the resources in the resource set; when receiving side link control information from the second terminal device and the side link control information includes a reserved resource indication (subsequent resource indication) In this case, the first terminal device sends the reselection indication according to a monitoring result of the reserved resource.
  • UE A can only continue to monitor the resources in the resource set and report the reselection indication only when there is no subsequent reservation information of UE B; If an event meeting the conditions occurs, the reselection instruction is reported, that is, the aforementioned scheme 2 is adopted. In this way, the reliability gain brought about by device cooperation can be obtained, and resource overhead can be reduced at the same time.
  • the first terminal device determines the validity of the resource set.
  • the first terminal device may determine the validity of the resource set when certain conditions are triggered (for example, a timer expires), or may periodically determine the validity of the resource set.
  • the first terminal device determines whether the resource set is invalid; and if it is determined that the resource set is invalid, sends an invalidation indication to the second terminal device.
  • the first terminal device determines that the resource set is invalid when at least one of the following conditions is satisfied: the number of preferred resources in the resource set is less than or equal to a threshold value, the resource The proportion of preferred resources in the set is less than or equal to the threshold value, the number of non-preferred resources in the resource set is greater than the threshold value, the proportion of non-preferred resources in the resource set is greater than the threshold value, and the resource set corresponds to A timer (for example, started when the resource set is received) times out, the first terminal device determines that the distance between the second terminal device and the second terminal device is greater than a threshold, the first terminal device determines that the distance from the second terminal device is The RSRP of the signal of the terminal device is greater than the threshold.
  • UE A may, for the reported "preferred" resource set, if the number of resources that become “non-preferred” is greater than the threshold (quantity threshold), or if it becomes “non-preferred” If the resource percentage of "non-preferred" is greater than the threshold value (proportional threshold value), it is considered that the resource set has failed, and an invalidation indication is sent to UE B.
  • the threshold quantity threshold
  • the threshold value proportional threshold value
  • UE A may, based on its own monitoring results, for the reported "preferred" resource set, if the number of "preferred" resources in it becomes less than or equal to the threshold value (quantity threshold value), or where the "preferred" resource set If the resource percentage of " becomes less than or equal to the threshold value (proportional threshold value), then the resource set is considered to be invalid, and an invalidation indication is sent to UE B.
  • the threshold value quantity threshold value
  • UE A after UE A reports the resource set, it can start a timer. When the timer expires, it considers that the resource set has expired and sends an invalidation indication to UE B.
  • the resource availability change over time in the reported resource set can be reduced or avoided, thereby improving the reliability of the resource.
  • UE A reports a resource set
  • this application is not limited thereto.
  • UE A may send resource sets to UE B multiple times (eg, periodically). After UE B receives the new resource set sent by UE A, no matter whether the old resource set is determined or indicated to be invalid, it can be discarded or no longer used (it can be regarded as invalid).
  • the failure indication is carried in the first-level side-link control information sent in the physical side-link control channel, or in the second-level side-link control information sent in the physical side-link shared channel In, or in the medium access control (MAC) control element (CE) sent in the physical side link shared channel, or in the radio resource control (RRC) message sent in the physical side link shared channel.
  • MAC medium access control
  • CE control element
  • RRC radio resource control
  • the failure indication is carried by a physical side link feedback control channel; the failure indication and the reselection indication use different time-frequency resources.
  • the failure indication and the reselection indication are jointly carried by a physical side link feedback control channel; the failure indication and the reselection indication use the same time-frequency resource and are shifted by different cycles logo.
  • UE A may indicate different information to be reported by using a cyclic shift (cyclic shift) ⁇ calculated by m cs in the PSFCH resource.
  • a cyclic shift cyclic shift
  • ⁇ cyclic shift
  • the first terminal device monitors at least one resource in the resource set; when the monitored first resource in the resource set partially or completely overlaps with one or more second resources reserved by other terminal devices In this case, the first terminal device sends a reselection indication to the second terminal device in the corresponding first time slot before the first resource.
  • resource re-evaluation can be performed through the cooperation information of the first terminal device, so that the reliability gain brought about by device cooperation can be obtained promote.
  • the embodiment of the present application provides a method for receiving side link coordination information, which is described from the second terminal device (UE B). The same content as the embodiment of the first aspect will not be repeated.
  • FIG. 11 is a schematic diagram of a method for receiving side link cooperation information according to an embodiment of the present application. As shown in Figure 11, the method includes:
  • the second terminal device performs monitoring in the corresponding time slot before each resource in the resource set;
  • the second terminal device reselects the first resource corresponding to the first time slot when detecting the reselection indication sent by the first terminal device in the first time slot.
  • FIG. 11 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto.
  • the execution order of various operations can be appropriately adjusted, and some other operations can be added or some of them can be reduced.
  • Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the above description in FIG. 11 .
  • the second terminal device receives the resource set sent by the first terminal device.
  • the reselection indication is carried by a Physical Sidelink Feedback Control Channel (PSFCH).
  • PSFCH Physical Sidelink Feedback Control Channel
  • the resource set is carried in the first-level side-link control information sent in the physical side-link control channel, or in the second-level side-link control information sent in the physical side-link shared channel , or in a Medium Access Control (MAC) Control Element (CE) sent in the physical side link shared channel, or in a radio resource control (RRC) message sent in the physical side link shared channel.
  • MAC Medium Access Control
  • CE Control Element
  • RRC radio resource control
  • the processing time is T3.
  • the resource set includes resources preferred by the first terminal device.
  • the resource set (resource set B) obtained by itself through perception and the resource set reported by UE A In the intersection of the sets (resource set A), one or more resources are randomly selected for data transmission.
  • UE B monitors the reselection indication that UE A may report in the corresponding time slot before each selected resource of resource set A, and the corresponding time slot may be that the processing time is satisfied before a resource in the resource set A (eg T3) time slot.
  • the second terminal device determines whether the resource set is invalid.
  • the second terminal device determines the resource set according to whether a timer corresponding to the resource set (for example, the timer is started when the resource set is received) times out, and/or whether an invalidation indication of the resource set is received. Whether the resource collection is invalid.
  • whether the resource set is invalid is determined by whether an invalidation indication of the resource set is received. For example, when UE B receives the failure indication sent by UE A, it determines that the resource set A corresponding to the failure indication is invalid, and explicitly releases the resource set A reported by UE A.
  • whether the resource set is invalid is determined by whether the timer corresponding to the resource set expires.
  • UE B can also maintain a timer. When the timer expires, it determines that the resource set A corresponding to the timer is invalid, and implicitly releases the resource set A reported by UE A.
  • whether the resource set is invalid is determined by whether the timer corresponding to the resource set expires and whether an invalidation indication of the resource set is received.
  • the UE B side can maintain a timer, UE B only determines that the corresponding resource set is invalid when the timer expires and receives an invalidation indication of the resource set; otherwise, it determines that the corresponding resource set is valid.
  • UE A reports a resource set
  • this application is not limited thereto.
  • UE A may send resource sets to UE B multiple times (eg, periodically). After UE B receives the new resource set sent by UE A, no matter whether the old resource set is determined or indicated to be invalid, it can be discarded or no longer used (it can be regarded as invalid).
  • the failure indication is carried in the first-level side-link control information sent in the physical side-link control channel, or in the second-level side-link control information sent in the physical side-link shared channel In, or in the medium access control (MAC) control element (CE) sent in the physical side link shared channel, or in the radio resource control (RRC) message sent in the physical side link shared channel.
  • MAC medium access control
  • CE control element
  • RRC radio resource control
  • the failure indication is carried by a physical side link feedback control channel; the failure indication and the reselection indication use different time-frequency resources.
  • the failure indication and the reselection indication are jointly carried by a physical side link feedback control channel; the failure indication and the reselection indication use the same time-frequency resource and are shifted by different cycles logo.
  • UE A may indicate different information to be reported by using a cyclic shift (cyclic shift) ⁇ calculated by m cs in the PSFCH resource.
  • a cyclic shift cyclic shift
  • ⁇ cyclic shift
  • the second terminal device when the second terminal device receives the reselection instruction and the timer corresponding to the resource set has not timed out, it performs resource reselection according to its own perception result and the resource set; In the case of the reselection indication and the timer corresponding to the resource set expires, resource reselection is performed according to the self-awareness result.
  • UE B when UE B itself determines that the timer corresponding to the resource set reported by UE A has not expired (that is, the resource set is valid) and receives the reselection indication, it still needs to consider the resource set reported by UE A during the resource reselection process.
  • UE B still needs to combine the candidate resource set (resource set B) obtained by itself through sensing and the resource set (resource set A) previously reported by UE A during reselection. Randomly select resources for reselection in the intersection; if the previously reported resource set is "non-preferred", UE B still needs to exclude UE A from its own candidate resource set (resource set B) obtained through sensing during reselection Resources included in the reported resource set (resource set A).
  • UE B when UE B itself determines that the timer corresponding to the resource set reported by UE A has expired (that is, the resource set is invalid) and receives the reselection indication, it does not need to consider the resource set reported by UE A during the resource reselection process , reselect only according to UE B's own perception results. And the reselection triggered by the reselection indication received after that will not consider the report result of UE A until UE B triggers UE A to report the resource set again.
  • the second terminal device when the second terminal device receives the reselection indication and does not receive the failure indication corresponding to the resource set, it performs resource reselection according to its own perception result and the resource set; When the reselection indication is received and the invalidation indication corresponding to the resource set is received, resource reselection is performed according to the self-perception result.
  • the resource set reported by UE A needs to be considered in the resource reselection process.
  • UE B still needs to combine the candidate resource set (resource set B) obtained by itself through sensing and the resource set (resource set A) previously reported by UE A during reselection. Randomly select resources for reselection in the intersection; if the previously reported resource set is "non-preferred", UE B still needs to exclude UE A from its own candidate resource set (resource set B) obtained through sensing during reselection Resources included in the reported resource set (resource set A).
  • UE B receives the "failure" indication of the resource set, or the "reselection+failure” indication (that is, it implies receiving the failure indication of the resource set), it does not need to consider the resource reselection process.
  • the resource set reported by UE A is only reselected based on UE B's own perception results. And the reselection triggered by the reselection indication received after that will not consider the report result of UE A until UE B triggers UE A to report the resource set again.
  • the second terminal device monitors in the corresponding time slot before each resource in the resource set;
  • the first resource corresponding to the first time slot is reselected.
  • the embodiment of the present application provides a method for indicating side link cooperation information, which is described from the perspective of the first terminal device (UE A), and the same content as the embodiment of the first aspect will not be repeated.
  • FIG. 12 is a schematic diagram of a method for indicating side link cooperation information according to an embodiment of the present application. As shown in Figure 12, the method includes:
  • the first terminal device sends a resource set to the second terminal device
  • the first terminal device determines whether the resource set is invalid
  • the resource set includes resources preferred by the first terminal device.
  • the first terminal device determines that the resource set is invalid when at least one of the following conditions is met: the number of preferred resources in the resource set is less than or equal to a threshold value, the number of preferred resources in the resource set The proportion of less than or equal to the threshold value, the number of non-preferred resources in the resource set is greater than the threshold value, and the proportion of non-preferred resources in the resource set is greater than the threshold value.
  • the first terminal device determines that the resource set is invalid when at least one of the following conditions is met: the number of preferred resources in the resource set is less than or equal to a threshold value, and the number of preferred resources in the resource set The proportion of resources is less than or equal to the threshold value, the number of non-preferred resources in the resource set is greater than the threshold value, the proportion of non-preferred resources in the resource set is greater than the threshold value, and the timer corresponding to the resource set expires .
  • the first terminal device determines that the distance between it and the second terminal device is greater than a threshold value.
  • the first terminal device determines that the RSRP of a signal from the second terminal device is greater than a threshold value.
  • the resource set includes resources not preferred by the first terminal device.
  • the first terminal device determines that the resource set is invalid when at least one of the following conditions is satisfied: the number of preferred resources in the resource set is greater than a threshold value, the proportion of preferred resources in the resource set greater than the threshold value, the number of unpreferred resources in the resource set is less than or equal to the threshold value, and the proportion of unpreferred resources in the resource set is less than or equal to the threshold value.
  • the first terminal device determines that the resource set is invalid when at least one of the following conditions is met: the number of preferred resources in the resource set is greater than a threshold, the number of preferred resources in the resource set The proportion is greater than the threshold value, the number of non-preferred resources in the resource set is less than or equal to the threshold value, the proportion of non-preferred resources in the resource set is less than or equal to the threshold value, and the timer corresponding to the resource set expires .
  • the first terminal device determines that the distance between it and the second terminal device is greater than a threshold value.
  • the first terminal device determines that the RSRP of a signal from the second terminal device is greater than a threshold value.
  • UE A reports a resource set
  • this application is not limited thereto.
  • UE A may send resource sets to UE B multiple times (eg, periodically). After UE B receives the new resource set sent by UE A, no matter whether the old resource set is determined or indicated to be invalid, it can be discarded or no longer used (it can be regarded as invalid).
  • the failure indication is carried by a physical side link feedback control channel.
  • the failure indication is carried in the first-level side-link control information sent in the physical side-link control channel, or in the second-level side-link control information sent in the physical side-link shared channel , or in a Medium Access Control (MAC) Control Element (CE) sent in the physical side link shared channel, or in a radio resource control (RRC) message sent in the physical side link shared channel.
  • MAC Medium Access Control
  • CE Control Element
  • RRC radio resource control
  • the first terminal device sends the resource set to the second terminal device to determine whether the resource set is invalid; and when it is determined that the resource set is invalid, sends an invalidation indication to the second terminal device.
  • the resource availability change over time in the reported resource set can be reduced or avoided, thereby improving the reliability of the resource.
  • the embodiment of the present application provides a method for receiving side link cooperation information, which is described from the perspective of the second terminal device (UE B), and the same content as the embodiment of the second aspect will not be repeated.
  • the resource collection in the embodiment of the present application can be used in the resource primary selection process, and can also be used in the resource reselection process.
  • FIG. 13 is a schematic diagram of a method for receiving side link cooperation information according to an embodiment of the present application. As shown in Figure 13, the method includes:
  • the second terminal device receives the resource set sent by the first terminal device.
  • the second terminal device determines whether the resource set is invalid.
  • FIG. 13 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto.
  • the execution order of various operations can be appropriately adjusted, and some other operations can be added or some of them can be reduced.
  • Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the above description in FIG. 13 .
  • the second terminal device determines whether the resource set is invalid according to whether the timer corresponding to the resource set expires, and/or whether an invalidation indication of the resource set is received.
  • the second terminal device may perform resource reselection according to its own perception result and the resource set; when the resource set is invalid, it may perform resource reselection according to its own perception result select.
  • UE B when UE B receives the resource set sent by UE A, it can start the timer corresponding to the resource set. If the timer does not expire, the resource set can be used in the resource primary selection or resource reselection process; if the timer expires, the resource set cannot be used in the resource primary selection or resource reselection process. used.
  • the resource set in the case that UE B does not receive an invalidation indication of the resource set from UE A, the resource set can be used in the next resource primary selection or resource reselection process; In the case of the failure indication of the resource set of A, the resource set cannot be used in the following resource primary selection or resource reselection process.
  • UE A reports a resource set
  • this application is not limited thereto.
  • UE A may send resource sets to UE B multiple times (eg, periodically). After UE B receives the new resource set sent by UE A, no matter whether the old resource set is determined or indicated to be invalid, it can be discarded or no longer used (it can be regarded as invalid).
  • the failure indication is carried by a physical side link feedback control channel.
  • the failure indication is carried in the first-level side-link control information sent in the physical side-link control channel, or in the second-level side-link control information sent in the physical side-link shared channel , or in a Medium Access Control (MAC) Control Element (CE) sent in the physical side link shared channel, or in a radio resource control (RRC) message sent in the physical side link shared channel.
  • MAC Medium Access Control
  • CE Control Element
  • RRC radio resource control
  • the resource set includes resources preferred by the first terminal device, and/or, the resource set includes resources not preferred by the first terminal device.
  • the second terminal device receives the resource set sent by the first terminal device; and the second terminal device determines whether the resource set is invalid.
  • the resource availability change over time in the reported resource set can be reduced or avoided, thereby improving the reliability of the resource.
  • An embodiment of the present application provides a device for indicating side link cooperation information.
  • the apparatus may be, for example, a terminal device (a first terminal device), or may be one or some components or components configured on the terminal device, and details that are the same as those in the embodiment of the first aspect will not be described again.
  • FIG. 14 is a schematic diagram of an apparatus for indicating side link cooperation information according to an embodiment of the present application.
  • the device 1400 for indicating side link cooperation information includes:
  • a determining unit 1402 which determines whether it is monitored that the first resource in the resource set partially or completely overlaps with one or more second resources reserved by other terminal devices;
  • the sending unit 1403 in the case that the first resource partially or completely overlaps with the one or more second resources, sends a reselection to the second terminal device in the corresponding first time slot before the first resource instruct.
  • the sending unit 1403 further sends the resource set to the second terminal device, where the resource set includes resources preferred by the first terminal device.
  • the reselection indication is carried by a physical side link feedback control channel, and there is at least a predetermined processing time interval between the corresponding first time slot and the second time slot where the first resource is located.
  • the set of resources is carried in the first-level side-link control information sent in the physical side-link control channel, or in the second-level side-link control information sent in the physical side-link shared channel , or in the medium access control control element sent in the physical side link shared channel, or in the radio resource control message sent in the physical side link shared channel.
  • the priority value of the first resource is greater than the priority value of the second resource, and/or, the RSRP detection value corresponding to the second resource is greater than a threshold, and/or, the channel The detected value of the busy rate is greater than the threshold value, and/or the detected value of the channel busy rate is less than or equal to the threshold value.
  • the monitoring unit 1401 also monitors the side link control information from the second terminal device; the determining unit 1402 also determines whether the side link control information from the second terminal device or the received Whether the side link control information includes a reserved resource indication (subsequent resource indication); and
  • the sending unit 1403 further, in the case that the side link control information from the second terminal device is not received or the received side link control information does not include a reserved resource indication (subsequent resource indication), according to the resource
  • the monitoring result of the resources in the set sends the reselection indication; when the side link control information from the second terminal device is received and the side link control information includes a reserved resource indication (subsequent resource indication) , sending the reselection indication according to the monitoring result of the reserved resource.
  • the determining unit 1402 further determines whether the resource set is invalid; and the sending unit 1403 further sends an invalidation indication to the second terminal device when it is determined that the resource set is invalid.
  • the determining unit 1402 determines that the resource set is invalid when at least one of the following conditions is met: the number of preferred resources in the resource set is less than or equal to a threshold value, and the number of preferred resources in the resource set The proportion of resources is less than or equal to the threshold value, the number of non-preferred resources in the resource set is greater than the threshold value, the proportion of non-preferred resources in the resource set is greater than the threshold value, and the timer corresponding to the resource set expires .
  • the first terminal device determines that the distance between it and the second terminal device is greater than a threshold value.
  • the first terminal device determines that the RSRP of a signal from the second terminal device is greater than a threshold value.
  • the failure indication is carried in the first-level side-link control information sent in the physical side-link control channel, or in the second-level side-link control information sent in the physical side-link shared channel , or in the medium access control control element sent in the physical side link shared channel, or in the radio resource control message sent in the physical side link shared channel.
  • the failure indication is carried by a physical side link feedback control channel; the failure indication and the reselection indication use different time-frequency resources.
  • the failure indication and the reselection indication are jointly carried by a physical side link feedback control channel; the failure indication and the reselection indication use the same time-frequency resource and are shifted by different cycles logo.
  • the apparatus 1400 for indicating side link cooperation information may also include other components or modules, and for specific content of these components or modules, reference may be made to related technologies.
  • FIG. 14 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.
  • the first terminal device monitors at least one resource in the resource set; when the monitored first resource in the resource set partially or completely overlaps with one or more second resources reserved by other terminal devices In this case, the first terminal device sends a reselection indication to the second terminal device in the corresponding first time slot before the first resource.
  • resource re-evaluation can be performed through the cooperation information of the first terminal device, so that the reliability gain brought about by device cooperation can be obtained promote.
  • An embodiment of the present application provides a device for indicating side link cooperation information.
  • the apparatus may be, for example, a terminal device (first terminal device), or one or some components or components configured on the terminal device, and the same content as that in the embodiment of the third aspect will not be repeated here.
  • FIG. 15 is a schematic diagram of an apparatus for indicating side link cooperation information according to an embodiment of the present application.
  • the device 1500 for indicating side link cooperation information includes:
  • a sending unit 1501 which sends the resource set to the second terminal device.
  • a determining unit 1502 which determines whether the resource set is invalid
  • the sending unit 1501 further sends an invalidation indication to the second terminal device when it is determined that the resource set is invalid.
  • the resource set includes resources preferred by the first terminal device; it is determined that the resource set is invalid when at least one of the following conditions is met: the number of preferred resources in the resource set is less than or equal to the threshold value, the proportion of preferred resources in the resource set is less than or equal to the threshold value, the number of non-preferred resources in the resource set is greater than the threshold value, and the proportion of non-preferred resources in the resource set is greater than the threshold limit.
  • the resource set includes resources that are not preferred by the first terminal device; it is determined that the resource set is invalid when at least one of the following conditions is met: the number of preferred resources in the resource set greater than the threshold value, the proportion of preferred resources in the resource set is greater than the threshold value, the number of non-preferred resources in the resource set is less than or equal to the threshold value, and the proportion of non-preferred resources in the resource set is less than or equal to threshold.
  • the determining unit 1502 also determines that the resource set is invalid when at least one of the following conditions is satisfied: the timer corresponding to the resource set expires, the first terminal device determines that the The distance between the terminal devices is greater than a threshold value, and the first terminal device determines that the RSRP of the signal from the second terminal device is greater than the threshold value.
  • the apparatus 1500 for indicating side link cooperation information may also include other components or modules, and for specific content of these components or modules, reference may be made to related technologies.
  • Fig. 15 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.
  • the first terminal device sends the resource set to the second terminal device to determine whether the resource set is invalid; and when it is determined that the resource set is invalid, sends an invalidation indication to the second terminal device.
  • the resource availability change over time in the reported resource set can be reduced or avoided, thereby improving the reliability of the resource.
  • An embodiment of the present application provides a device for receiving side link cooperation information.
  • the apparatus may be, for example, a terminal device (second terminal device), or may be one or some components or components configured on the terminal device, and the content that is the same as that in the embodiment of the second aspect will not be repeated here.
  • FIG. 16 is a schematic diagram of an apparatus for receiving side link cooperation information according to an embodiment of the present application.
  • the receiving apparatus 1600 of side link cooperation information includes:
  • a monitoring unit 1601 which monitors in the corresponding time slot before each resource in the resource set.
  • the processing unit 1602 is configured to perform reselection on the first resource corresponding to the first time slot when the reselection indication sent by the first terminal device is detected in the first time slot.
  • the device further includes:
  • a receiving unit 1603, configured to receive the resource set sent by the first terminal device, where the resource set includes resources preferred by the first terminal device.
  • the reselection indication is carried by a physical side link feedback control channel, and there is at least a predetermined processing time interval between the first time slot and the second time slot where the corresponding first resource is located.
  • the resource set is carried in the first-level side-link control information sent in the physical side-link control channel, or in the second-level side-link control information sent in the physical side-link shared channel , or in the medium access control control element sent in the physical side link shared channel, or in the radio resource control message sent in the physical side link shared channel.
  • the processing unit 1602 also determines whether the resource set is invalid; wherein, the processing unit 1602 determines whether the timer corresponding to the resource set expires, and/or whether the resource set invalidation is received Indication to determine whether the set of resources is invalid.
  • the failure indication is carried in the first-level side-link control information sent in the physical side-link control channel, or in the second-level side-link control information sent in the physical side-link shared channel , or in the medium access control control element sent in the physical side link shared channel, or in the radio resource control message sent in the physical side link shared channel.
  • the failure indication is carried by a physical side link feedback control channel; the failure indication and the reselection indication use different time-frequency resources.
  • the failure indication and the reselection indication are jointly carried by a physical side link feedback control channel; the failure indication and the reselection indication use the same time-frequency resource and are shifted by different cycles logo.
  • the processing unit 1602 when the processing unit 1602 receives the reselection instruction and the timer corresponding to the resource set has not timed out, it performs resource reselection according to its own perception result and the resource set; In the case of the reselection indication and the timer corresponding to the resource set expires, resource reselection is performed according to the self-awareness result.
  • the processing unit 1602 when the processing unit 1602 receives the reselection indication and does not receive the failure indication, it performs resource reselection according to its own perception result and the resource set; When the selection indication is received and the failure indication is received, resource reselection is performed according to the self-perception result.
  • the apparatus 1600 for receiving side link cooperation information may also include other components or modules, and for specific content of these components or modules, reference may be made to related technologies.
  • FIG. 16 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.
  • the second terminal device monitors in the corresponding time slot before each resource in the resource set;
  • the first resource corresponding to the first time slot is reselected.
  • An embodiment of the present application provides a device for receiving side link cooperation information.
  • the apparatus may be, for example, a terminal device (second terminal device), or may be one or some components or components configured on the terminal device, and the content that is the same as that in the embodiment of the fourth aspect will not be repeated here.
  • FIG. 17 is a schematic diagram of an apparatus for receiving side link cooperation information according to an embodiment of the present application.
  • the apparatus 1700 for receiving side link cooperation information includes:
  • a receiving unit 1701 which receives the resource set sent by the first terminal device
  • a determining unit 1702 which determines whether the resource set is invalid.
  • the determining unit 1702 determines that the resource set is invalid according to whether the timer corresponding to the resource set expires, and/or whether an invalidation indication of the resource set is received.
  • the failure indication is carried by a physical side link feedback control channel.
  • the failure indication is carried in the first-level side-link control information sent in the physical side-link control channel, or in the second-level side-link control information sent in the physical side-link shared channel , or in a Medium Access Control (MAC) Control Element (CE) sent in the physical side link shared channel, or in a radio resource control (RRC) message sent in the physical side link shared channel.
  • MAC Medium Access Control
  • CE Control Element
  • RRC radio resource control
  • the resource set includes resources preferred by the first terminal device, and/or, the resource set includes resources not preferred by the first terminal device.
  • the apparatus 1700 for receiving side link cooperation information may also include other components or modules, and for specific content of these components or modules, reference may be made to related technologies.
  • FIG. 17 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.
  • the second terminal device receives the resource set sent by the first terminal device; and the second terminal device determines whether the resource set is invalid.
  • the resource availability change over time in the reported resource set can be reduced or avoided, thereby improving the reliability of the resource.
  • the embodiment of the present application also provides a communication system, which can be referred to FIG. 1 , and the same content as the embodiments of the first aspect to the eighth aspect will not be repeated.
  • the communication system 100 may at least include:
  • the first terminal device 102 monitors at least one resource in the resource set; determines whether the monitored first resource in the resource set partially or completely overlaps with one or more second resources reserved by other terminal devices; and when the first resource partially or completely overlaps with the one or more second resources, sending a reselection indication in a corresponding first time slot before the first resource;
  • the second terminal device 103 which monitors in the corresponding time slot before each resource in the resource set; and when the reselection indication sent by the first terminal device is detected in the first time slot, Reselecting the first resource corresponding to the first time slot.
  • the communication system 100 may at least include:
  • the first terminal device 102 which sends a resource set; determines whether the resource set is invalid; and sends an invalidation indication if the resource set is determined to be invalid;
  • the second terminal device 103 receives the resource set sent by the first terminal device; and determines whether the resource set is invalid.
  • the embodiment of the present application also provides a network device, which may be, for example, a base station, but the present application is not limited thereto, and may be other network devices.
  • a network device which may be, for example, a base station, but the present application is not limited thereto, and may be other network devices.
  • FIG. 18 is a schematic diagram of a network device according to an embodiment of the present application.
  • a network device 1800 may include: a processor 1810 (such as a central processing unit CPU) and a memory 1820 ; the memory 1820 is coupled to the processor 1810 .
  • the memory 1820 can store various data; in addition, it also stores a program 1830 for information processing, and executes the program 1830 under the control of the processor 1810 .
  • the network device 1800 may further include: a transceiver 1840 and an antenna 1850 , etc.; where the functions of the above components are similar to those of the prior art, and will not be repeated here. It should be noted that the network device 1800 does not necessarily include all the components shown in FIG. 18 ; in addition, the network device 1800 may also include components not shown in FIG. 18 , and reference may be made to the prior art.
  • the embodiment of the present application also provides a terminal device, but the present application is not limited thereto, and may be other devices.
  • FIG. 19 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 1900 may include a processor 1910 and a memory 1920 ; the memory 1920 stores data and programs, and is coupled to the processor 1910 . It is worth noting that this figure is exemplary; other types of structures may also be used in addition to or instead of this structure to implement telecommunications functions or other functions.
  • the processor 1910 may be configured to execute a program to implement the method for indicating side link cooperation information as described in the embodiment of the first aspect.
  • the processor 1910 may be configured to perform the following control: monitor at least one resource in the resource set; determine whether the first resource in the resource set and one or more second resources reserved by other terminal devices are detected. The resources partially or completely overlap; and in the case where the first resource partially or completely overlaps with the one or more second resources, the corresponding first time slot of the first terminal device before the first resource Sending a reselection indication to the second terminal device.
  • the processor 1910 may be configured to execute a program to implement the method for receiving side link cooperation information as described in the embodiment of the second aspect.
  • the processor 1910 may be configured to perform the following control: monitor in the corresponding time slot before each resource in the resource set; and monitor the reselection indication sent by the first terminal device in the first time slot Next, reselect the first resource corresponding to the first time slot.
  • the processor 1910 may be configured to execute a program to implement the method for indicating side link cooperation information as described in the embodiment of the third aspect.
  • the processor 1910 may be configured to perform the following control: send the resource set to the second terminal device; determine whether the resource set is invalid; and if it is determined that the resource set is invalid, send the resource set to the second terminal device failure indication.
  • the processor 1910 may be configured to execute a program to implement the method for receiving side link cooperation information as described in the embodiment of the fourth aspect.
  • the processor 1910 may be configured to perform the following control: receive the resource set sent by the first terminal device; and determine whether the resource set is invalid.
  • the terminal device 1900 may further include: a communication module 1930 , an input unit 1940 , a display 1950 , and a power supply 1960 .
  • a communication module 1930 the functions of the above components are similar to those of the prior art, and will not be repeated here. It should be noted that the terminal device 1900 does not necessarily include all the components shown in FIG. have technology.
  • the embodiment of the present application also provides a computer program, wherein when the program is executed in the terminal device, the program causes the terminal device to execute the side link coordination information described in the embodiments of the first to fourth aspects. Indicates the method or the receiving method of the side link coordination information.
  • the embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables the terminal device to execute the method for indicating side link cooperation information or the side link cooperation described in the embodiments of the first to fourth aspects The method of receiving the information.
  • the above devices and methods in this application can be implemented by hardware, or by combining hardware and software.
  • the present application relates to a computer-readable program that, when executed by a logic component, enables the logic component to realize the above-mentioned device or constituent component, or enables the logic component to realize the above-mentioned various methods or steps.
  • the present application also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memories, and the like.
  • the method/device described in conjunction with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional block diagrams shown in the figure and/or one or more combinations of the functional block diagrams may correspond to each software module or each hardware module of the computer program flow.
  • These software modules may respectively correspond to the steps shown in the figure.
  • These hardware modules for example, can be realized by solidifying these software modules by using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor such that the processor can read information from, and write information to, the storage medium, or it can be an integral part of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or large-capacity flash memory device.
  • One or more of the functional blocks described in the accompanying drawings and/or one or more combinations of the functional blocks can be implemented as a general-purpose processor, a digital signal processor (DSP) for performing the functions described in this application ), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof.
  • DSP digital signal processor
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors processor, one or more microprocessors in communication with a DSP, or any other such configuration.
  • a method for indicating side link cooperation information including:
  • the first terminal device monitors at least one resource in the resource set
  • the first terminal device sends a re-transmission to the second terminal device in the corresponding first time slot before the first resource Select instructions.
  • the first terminal device sends the resource set to the second terminal device.
  • Supplement 3 The method according to Supplement 1 or 2, wherein the reselection indication is carried by a physical side link feedback control channel.
  • Supplement 4 The method according to Supplement 2, wherein the set of resources is carried in the first-level side link control information sent in the physical side link control channel, or sent in the physical side link shared channel In the second-level side link control information, or in the medium access control (MAC) control element (CE) sent in the physical side link shared channel, or in the radio resource sent in the physical side link shared channel Control (RRC) message.
  • MAC medium access control
  • CE control element
  • Supplement 5 The method according to any one of Supplements 1 to 4, wherein the resource set includes resources preferred by the first terminal device.
  • Supplement 6 The method according to any one of Supplements 1 to 5, wherein there is at least a predetermined processing time interval between the corresponding first time slot and the second time slot where the first resource is located.
  • Supplement 7 The method according to any one of Supplements 1 to 6, wherein the priority value of the first resource is greater than the priority value of the second resource, and/or the second resource corresponds to The detected value of the RSRP is greater than the threshold value, and/or the detected value of the channel busy rate (CBR) is greater than the threshold value, and/or the detected value of the channel busy rate (CBR) is less than or equal to the threshold value.
  • Supplementary Note 8 The method according to any one of Supplementary Notes 1 to 7, wherein the method further comprises:
  • the first terminal device monitors side link control information from the second terminal device
  • the first terminal device If no side link control information is received from the second terminal device or the received side link control information does not contain a reserved resource indication (subsequent resource indication), the first terminal device according to the Send the reselection indication according to the monitoring result of the resources in the resource set; when receiving side link control information from the second terminal device and the side link control information includes a reserved resource indication (subsequent resource indication) In this case, the first terminal device sends the reselection indication according to a monitoring result of the reserved resource.
  • Supplementary Note 9 The method according to Supplementary Note 2, wherein the method further comprises:
  • the first terminal device determines whether the set of resources is invalid
  • Supplement 10 The method according to Supplement 9, wherein the first terminal device determines that the resource set is invalid when at least one of the following conditions is met: the number of preferred resources in the resource set is less than or equal to the threshold value, the proportion of preferred resources in the resource set is less than or equal to the threshold value, the number of non-preferred resources in the resource set is greater than the threshold value, and the proportion of non-preferred resources in the resource set is greater than the threshold limit value, the timer corresponding to the resource set expires, the first terminal device determines that the distance between the second terminal device and the second terminal device is greater than the threshold value, the first terminal device determines that the distance from the second terminal device The RSRP of the signal is greater than the threshold.
  • Supplement 11 The method according to Supplement 9 or 10, wherein the failure indication is carried in the first-level side link control information sent in the physical side link control channel, or in the physical side link shared channel In the second-level side link control information sent in the physical side link shared channel, or in the medium access control (MAC) control element (CE) sent in the physical side link shared channel, or in the physical side link shared channel In Radio Resource Control (RRC) messages.
  • the failure indication is carried in the first-level side link control information sent in the physical side link control channel, or in the physical side link shared channel
  • MAC medium access control
  • CE control element
  • Supplement 12 The method according to Supplement 9 or 10, wherein the failure indication is carried by a physical side link feedback control channel; the failure indication and the reselection indication use different time-frequency resources.
  • a method for receiving side link cooperation information comprising:
  • the second terminal device monitors in a corresponding time slot preceding each resource in the set of resources.
  • the reselection indication sent by the first terminal device is detected in the first time slot, reselect the first resource corresponding to the first time slot.
  • the second terminal device receives the resource set sent by the first terminal device.
  • Supplement 16 The method according to Supplement 14 or 15, wherein the reselection indication is carried by a physical side link feedback control channel.
  • Supplement 17 The method according to Supplement 14 or 15, wherein the set of resources is carried in the first-level side link control information sent in the physical side link control channel, or in the physical side link shared channel In the second-level side link control information sent, or in the medium access control (MAC) control element (CE) sent in the physical side link shared channel, or in the radio In Resource Control (RRC) messages.
  • MAC medium access control
  • CE control element
  • Supplement 18 The method according to any one of Supplements 14 to 17, wherein there is at least a predetermined processing time interval between the first time slot and the second time slot where the corresponding first resource is located.
  • Supplement 19 The method according to any one of Supplements 14 to 18, wherein the resource set includes resources preferred by the first terminal device.
  • Supplement 20 The method according to any one of Supplements 14 to 19, wherein the method further comprises:
  • the second terminal device determines whether the resource set is invalid.
  • Supplement 21 The method according to Supplement 20, wherein the second terminal device is based on whether the timer corresponding to the resource set times out and/or whether the resource set sent by the first terminal device is received to determine whether the resource set is invalid.
  • Supplement 22 The method according to Supplement 21, wherein the failure indication is carried in the first-level side link control information sent in the physical side link control channel, or sent in the physical side link shared channel In the second-level side link control information, or in the medium access control (MAC) control element (CE) sent in the physical side link shared channel, or in the radio resource sent in the physical side link shared channel Control (RRC) message.
  • MAC medium access control
  • CE control element
  • Supplement 23 The method according to Supplement 21, wherein the failure indication is carried by a physical side link feedback control channel; the failure indication and the reselection indication use different time-frequency resources.
  • Supplementary Note 24 The method according to Supplementary Note 21, wherein, the failure indication and the reselection indication are jointly carried by a physical side link feedback control channel; the failure indication and the reselection indication use the same timing frequency resources and are identified by different cyclic shifts.
  • Supplement 25 The method according to any one of Supplements 20 to 24, wherein the method further comprises:
  • the second terminal device When the second terminal device receives the reselection instruction and the timer corresponding to the resource set has not timed out, it performs resource reselection according to its own perception result and the resource set; after receiving the reselection In the case of an indication and the timer corresponding to the resource set expires, resource reselection is performed according to the self-perception result.
  • Supplement 26 The method according to any one of Supplements 21 to 24, wherein the method further comprises:
  • the second terminal device When the second terminal device receives the reselection indication and does not receive the failure indication, it performs resource reselection according to its own perception result and the resource set; after receiving the reselection indication and receiving In the case of the failure indication, resource reselection is performed according to the self-perception result.
  • a method for indicating side link cooperation information including:
  • the first terminal device sends the resource set to the second terminal device
  • the first terminal device determines whether the set of resources is invalid
  • Supplementary Note 28 The method according to Supplementary Note 27, wherein the resource set includes resources preferred by the first terminal device.
  • Supplement 29 The method according to Supplement 28, wherein the first terminal device determines that the resource set is invalid when at least one of the following conditions is satisfied: the number of preferred resources in the resource set is less than or equal to the threshold value, the proportion of preferred resources in the resource set is less than or equal to the threshold value, the number of non-preferred resources in the resource set is greater than the threshold value, and the proportion of non-preferred resources in the resource set is greater than the threshold limit.
  • Supplementary Note 30 The method according to Supplementary Note 27, wherein the resource set includes resources not preferred by the first terminal device.
  • Supplement 31 The method according to Supplement 30, wherein the first terminal device determines that the resource set is invalid when at least one of the following conditions is met: the number of preferred resources in the resource set is greater than Threshold value, the proportion of preferred resources in the resource set is greater than the threshold value, the number of non-preferred resources in the resource set is less than or equal to the threshold value, and the proportion of non-preferred resources in the resource set is less than or equal to the threshold limit.
  • Supplement 32 The method according to any one of Supplements 27 to 31, wherein the first terminal device determines that the resource set is invalid when at least one of the following conditions is met: the resource set corresponding to The timer expires, the first terminal device determines that the distance between it and the second terminal device is greater than a threshold value, and the first terminal device determines that the RSRP of a signal from the second terminal device is greater than a threshold value.
  • Supplement 33 The method according to any one of Supplements 27 to 32, wherein the failure indication is carried by a physical side link feedback control channel.
  • Supplement 34 The method according to any one of Supplements 27 to 32, wherein the failure indication is carried in the first-level side link control information sent in the physical side link control channel, or the physical side link In the second-level side link control information sent in the shared channel, or in the medium access control (MAC) control element (CE) sent in the physical side link shared channel, or in the physical side link shared channel In the radio resource control (RRC) message sent.
  • the failure indication is carried in the first-level side link control information sent in the physical side link control channel, or the physical side link In the second-level side link control information sent in the shared channel, or in the medium access control (MAC) control element (CE) sent in the physical side link shared channel, or in the physical side link shared channel In the radio resource control (RRC) message sent.
  • MAC medium access control
  • CE radio resource control
  • a method for receiving side link cooperation information comprising:
  • the second terminal device receives the resource set sent by the first terminal device.
  • the second terminal device determines whether the resource set is invalid.
  • Supplement 36 The method according to Supplement 35, wherein the second terminal device determines according to whether the timer corresponding to the resource set times out, and/or whether an invalidation indication of the resource set is received. Whether the resource set is invalid.
  • Supplement 37 The method according to Supplement 35 or 36, wherein the failure indication is carried by a physical side link feedback control channel.
  • Supplement 38 The method according to Supplement 35 or 36, wherein the failure indication is carried in the first-level side link control information sent in the physical side link control channel, or in the physical side link shared channel In the second-level side link control information sent, or in the medium access control (MAC) control element (CE) sent in the physical side link shared channel, or in the radio In Resource Control (RRC) messages.
  • MAC medium access control
  • CE control element
  • Supplement 39 The method according to any one of Supplements 35 to 38, wherein the resource set includes resources preferred by the first terminal device, and/or, the resource set includes the resources of the first terminal device Unpreferred resources.
  • Supplement 40 The method according to any one of Supplements 35 to 39, wherein the method further comprises:
  • the second terminal device performs resource reselection based on whether the resource set is valid.
  • Supplementary Note 41 The method according to Supplementary Note 40, wherein, when the resource set is valid, the second terminal device performs resource reselection according to its own perception result and the resource set; In case of failure, resource reselection is performed according to the self-perception result.
  • a terminal device including a memory and a processor, the memory stores a computer program, and the processor is configured to execute the computer program to realize the edge as described in any one of Supplements 1 to 41.
  • a communication system comprising:
  • the first terminal device monitors at least one resource in the resource set; determines whether it is detected that the first resource in the resource set partially or completely overlaps with one or more second resources reserved by other terminal devices; and In the case where the first resource partially or completely overlaps with the one or more second resources, sending a reselection indication in a corresponding first time slot before the first resource;
  • the second terminal device monitors in the corresponding time slot before each resource in the resource set; and when the reselection indication sent by the first terminal device is detected in the first time slot, The first resource corresponding to the first time slot is reselected.
  • a communication system comprising:
  • a first terminal device which sends a resource set; determines whether the resource set is invalid; and sends an invalidation indication if it is determined that the resource set is invalid;
  • the second terminal device receives the resource set sent by the first terminal device; and determines whether the resource set is invalid.

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Abstract

本申请实施例提供一种边链路协作信息的指示和接收装置以及方法。所述方法包括：第一终端设备对资源集合中的至少一个资源进行监测；确定是否监测到所述资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠；以及在所述第一资源与所述一个或多个第二资源部分或完全重叠的情况下，在所述第一资源之前对应的第一时隙向第二终端设备发送重选指示。

Description

边链路协作信息的指示和接收装置以及方法 技术领域
本申请实施例涉及通信技术领域。
背景技术
在Rel-15以及之前版本的车联网(V2X，Vehicle to Everything)通信中，支持边链路(Sidelink)资源的两种分配方式：Mode 1和Mode 2。对于Mode 1，边链路资源由网络设备(例如基站)进行分配而获得；对于Mode 2，终端设备自主地选择发送资源，即发送资源通过感知(sensing)或检测-资源选择过程获得。
另一方面，新无线(NR，New Radio)边链路通信是Rel-16标准化的研究项目之一，相比于长期演进(LTE，Long Term Evolution)边链路通信，NR边链路通信需要支持诸多新场景和新业务(例如远程驾驶、自动驾驶和车队行驶等)，需要满足更高的技术指标(高可靠、低时延、高数据速率等)。
在Rel-16NR边链路通信中，一个可能降低终端设备可靠性的例子是：由于终端设备的感知(sensing)范围受限，导致隐藏节点的问题出现，从而导致资源碰撞的出现，降低了可靠性。此外，如果收发设备之间由于缺少协作，在相同的时间互相进行数据发送，则由于终端设备的半双工特性会产生丢包。在设计对应的解决方法时，要尽量减小对设备行为的影响，避免造成过多的额外标准工作负担。
如何增大可靠性是在Rel-17中需要重点研究和解决的问题。通过第一终端设备(UE A)在边链路上向第二终端设备(UE B)发送边链路协作信息，能够减小碰撞的概率，增大可靠性，可以解决如隐藏终端、暴露终端、半双工问题以及控制电路消耗。
例如，UE A可以把包括但不限于通过感知(sensing)获得的资源、自身的发送资源等信息报告给UE B，UE B则在其自身的资源选择或重选过程中考虑UE A上报的资源。
应该注意，上面对技术背景的介绍只是为了方便对本申请的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本申请的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
但是，发明人发现：如何在协作信息的发送开销不过大的情况下保证系统可靠性，仍然是值得进一步研究的问题，目前发送边链路协作信息的方案还有可靠性增益的提升空间。
针对上述问题的至少之一，本申请实施例提供一种边链路协作信息的指示和接收装置以及方法。
根据本申请实施例的一个方面，提供一种边链路协作信息的指示方法，包括：
第一终端设备对资源集合中的至少一个资源进行监测；
确定是否监测到所述资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠；以及
在所述第一资源与所述一个或多个第二资源部分或完全重叠的情况下，在所述第一资源之前对应的第一时隙向第二终端设备发送重选指示。
根据本申请实施例的另一个方面，提供一种边链路协作信息的指示装置，配置于第一终端设备，所述装置包括：
监测单元，其对资源集合中的至少一个资源进行监测；
确定单元，其确定是否监测到所述资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠；以及
发送单元，其在所述第一资源与所述一个或多个第二资源部分或完全重叠的情况下，在所述第一资源之前对应的第一时隙向第二终端设备发送重选指示。
根据本申请实施例的另一个方面，提供一种边链路协作信息的接收方法，包括：
第二终端设备在资源集合中的每个资源之前对应的时隙中进行监测；以及
在第一时隙中监测到第一终端设备发送的重选指示的情况下，对所述第一时隙对应的第一资源进行重选。
根据本申请实施例的另一个方面，提供一种边链路协作信息的接收装置，配置于第二终端设备，所述装置包括：
监测单元，其在资源集合中的每个资源之前对应的时隙中进行监测；以及
处理单元，其在第一时隙中监测到第一终端设备发送的重选指示的情况下，对所述第一时隙对应的第一资源进行重选。
根据本申请实施例的另一个方面，提供一种边链路协作信息的指示方法，包括：
第一终端设备向第二终端设备发送资源集合；以及
确定所述资源集合是否失效；
在确定所述资源集合失效的情况下，向所述第二终端设备发送失效指示。
根据本申请实施例的另一个方面，提供一种边链路协作信息的指示装置，配置于第一终端设备，所述装置包括：
发送单元，其向第二终端设备发送资源集合；以及
确定单元，其确定所述资源集合是否失效；
所述发送单元还在确定所述资源集合失效的情况下，向所述第二终端设备发送失效指示。
本申请实施例的有益效果之一在于：第一终端设备对资源集合中的至少一个资源进行监测；在监测到资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠的情况下，第一终端设备在第一资源之前对应的第一时隙向第二终端设备发送重选指示。由此，即使对于没有被第二终端设备的边链路控制信息指示或预留的资源，也能够通过第一终端设备的协作信息进行资源重评估，从而能够获得设备协作带来的可靠性增益提升。
参照后文的说明和附图，详细公开了本申请的特定实施方式，指明了本申请的原理可以被采用的方式。应该理解，本申请的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本申请的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本申请实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
图1是本申请实施例的通信系统的一示意图；
图2是终端设备进行边链路资源选择的一示意图；
图3是资源重评估过程的一示例图；
图4是资源抢占检测过程的一示例图；
图5是本申请实施例的一场景示例图；
图6是本申请实施例的协作信息被使用的一示例图；
图7是本申请实施例的协作信息被使用的另一示例图；
图8是本申请实施例的边链路协作信息的指示方法的一示意图；
图9是本申请实施例的边链路协作信息的一示例图；
图10是本申请实施例的边链路协作信息的另一示例图；
图11是本申请实施例的边链路协作信息的接收方法的一示意图；
图12是本申请实施例的边链路协作信息的指示方法的一示意图；
图13是本申请实施例的边链路协作信息的接收方法的一示意图；
图14是本申请实施例的边链路协作信息的指示装置的一示意图；
图15是本申请实施例的边链路协作信息的指示装置的另一示意图；
图16是本申请实施例的边链路协作信息的接收装置的一示意图；
图17是本申请实施例的边链路协作信息的接收装置的另一示意图；
图18是本申请实施例的网络设备的一示意图；
图19是本申请实施例的终端设备的一示意图。
具体实施方式
参照附图，通过下面的说明书，本申请的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本申请的特定实施方式，其表明了其中可以采用本申请的原则的部分实施方式，应了解的是，本申请不限于所描述的实施方式，相反，本申请包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本申请实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本申请实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意通信标 准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本申请实施例中，术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、发送接收点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base Station Controller)等等。
其中，基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femeto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本申请实施例中，术语“用户设备”(UE，User Equipment)或者“终端设备”(TE，Terminal Equipment或Terminal Device)例如是指通过网络设备接入通信网络并接收网络服务的设备。终端设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
其中，终端设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，终端设备还可以是进行监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
此外，术语“网络侧”或“网络设备侧”是指网络的一侧，可以是某一基站，也可以包括如上的一个或多个网络设备。术语“用户侧”或“终端侧”或“终端设备侧”是指用户或终端的一侧，可以是某一UE，也可以包括如上的一个或多个终端设备。本文在没有特别指出的情况下，“设备”可以指网络设备，也可以指终端设备。
以下通过示例对本申请实施例的场景进行说明，但本申请不限于此。
图1是本申请实施例的通信系统的示意图，示意性说明了以终端设备和网络设备为例的情况，如图1所示，通信系统100可以包括网络设备101和终端设备102、103。为简单起见，图1仅以两个终端设备和一个网络设备为例进行说明，但本申请实施例不限于此。
在本申请实施例中，网络设备101和终端设备102、103之间可以进行现有的业务或者未来可实施的业务发送。例如，这些业务可以包括但不限于：增强的移动宽带(eMBB，enhanced Mobile Broadband)、大规模机器类型通信(mMTC，massive Machine Type Communication)和高可靠低时延通信(URLLC，Ultra-Reliable and Low-Latency Communication)，等等。
值得注意的是，图1示出了两个终端设备102、103均处于网络设备101的覆盖范围内，但本申请不限于此。两个终端设备102、103可以均不在网络设备101的覆盖范围内，或者一个终端设备102在网络设备101的覆盖范围之内而另一个终端设备103在网络设备101的覆盖范围之外。
在本申请实施例中，两个终端设备102、103之间可以进行边链路发送。例如，两个终端设备102、103可以都在网络设备101的覆盖范围之内进行边链路发送以实现边链路通信，也可以都在网络设备101的覆盖范围之外进行边链路发送以实现边链路通信，还可以一个终端设备102在网络设备101的覆盖范围之内而另一个终端设备103在网络设备101的覆盖范围之外进行边链路发送以实现边链路通信。
在本申请实施例中，终端设备102和/或103可以自主选择边链路资源(即采用Mode 2)，在这种情况下边链路发送可以与网络设备101无关，即网络设备101是可选的。当然，本申请实施例也可以将自主选择边链路资源(即采用Mode 2)和由网络设备分配边链路资源(即采用Mode 1)结合起来；本申请实施例不对此进行限制。
在边链路通信中，终端设备能够通过感知检测+资源选择的过程来获得边链路发送资源，其中可以持续不断地进行感知(sensing)来获得资源池内资源的占用情况。例如，终端设备可以根据前一段时间内(称为感知窗)的资源占用情况来估计后一段时间内(称 为选择窗)的资源占用情况。
图2是终端设备进行边链路资源选择的一示意图，如图2所示，终端设备例如通过第(n-1000)至第(n-1)个子帧或时隙(即感知窗，sensing window)内的边链路控制信息(SCI，Sidelink Control Information)和对不同位置时频资源参考信号的检测，可以获得该感知窗的资源占用情况，进而可以估计出第(n+T1)至第(n+T2)个子帧或时隙(即选择窗，selection window)的资源占用情况。
例如，当有待发送的边链路数据时，终端设备的物理层从高层(例如介质访问控制(MAC，Media Access Control)层)获得资源选择的粒度R x,y；该粒度可以表示一个子帧内的一系列连续的子信道，每个子信道包括多于一个的连续物理资源块(PRB，Physical Resource Block)，PRB个数可以由资源池决定，资源池由网络设备(例如基站)配置或预配置；整个选择窗中的所有子帧内R x,y大小的资源(以下简称为R x,y候选资源)的集合被初始化定义为Set A。
终端设备可以根据在待发送数据到达之前在该感知窗内进行检测的结果，排除Set A(候选资源集合)中的部分候选资源。例如，在Rel-16的NR边链路通信中，以下的R x,y候选资源需要被排除：
——在时隙
Figure PCTCN2021110918-appb-000001
检测到SCI，从对应的SCI format 1-A中获得了指示的预留周期P rsvp_RX和指示的对应数据的优先级prio RX；
——与检测到的SCI format 1-A对应的物理边链路控制信道(PSCCH，Physical Sidelink Control Channel)的解调参考信号(DMRS，De-modulation Reference Signal)或物理边链路共享信道(PSSCH，Physical Sidelink Shared Channel)的DMRS(取决于资源池的配置)的参考信号接收功率(RSRP，Reference Signal Receiving Power)的测量结果大于Th(prio RX)；其中，Th(prio RX)取值为对应的高层参数ThresRSRP_pi_pj，p j是高层指示的当前UE待发送数据的优先级，p i是检测到的其他UE的SCI中指示的优先级；
——对应的SCI format 1-A指示的资源以及其可能预留的下一个周期的资源(例如对于小于100ms的短周期，可能包括多个)，与当前发送的候选集合Set A中的资源
Figure PCTCN2021110918-appb-000002
存在重叠(overlap)，j＝0,1,…,C resel-1。这里资源是指当前选择窗内的set A的候选资源，以及周期业务其后续周期可能预留的周期位置上的资源。
如果经过了上面的资源排除之后，Set A中所剩余的R x,y候选资源个数不足初始总数的X％(例如20％)，则将该RSRP门限值增大3dB，从初始的Set A中重新进行排除，直到Set A中剩余的R x,y候选资源个数大于或等于初始总数的20％为止。
将Set A中的R x,y候选资源放入Set B，其中，Set B是一个初始为空的集合。
以上物理层获得资源候选集合的过程可以称为步骤1(Step 1)。然后，终端设备的物理层可以将Set B上报给MAC层。以下MAC层在资源候选集合中选择资源的过程可以称为步骤2(Step2)。
MAC层在Set B中进行随机选择，选择一个候选资源并生成本次发送的授权(grant)。此外，在指示的资源中选择一个调制和编码方案(MCS，Modulation and Coding Scheme)进行数据发送。
如果在资源选择之前MAC层配置了重传，例如发送次数为2，则MAC层在选择了一个资源后，再在剩余可用资源集合中、满足初传SCI可指示的时域范围例如([-31,31])但不包含已选资源所在子帧的其余资源所组成的集合内，随机选择另一个资源并生成另一个授权(grant)，在指示的资源中选择一个MCS进行数据重传。两个资源中时间上在前的一个资源用来发送初传数据，时间上在后的一个资源用来发送重传数据。如果不存在这样的可用资源，则选择不在SCI可指示的时域范围例如([-31,31])且不包含已选资源所在子帧的其余资源所组成的集合内的资源。
值得注意的是，以上仅对边链路通信中感知检测+资源选择的过程进行了示意性说明。关于上述过程的具体内容，还可以参考3GPP TS 36.213 V15.2.0中第14.1.1.6等处的内容。
另一方面，在Rel-16 NR边链路通信中，当终端设备通过MAC层在候选集合中选择(Step 2)了当前传输块(TB)对应的一次或多次发送资源之后，还需要进行资源重评估(re-evaluation)过程和/或资源抢占(pre-emption)检测过程，以及判断边链路发送的优先级，以决定是否要对已经选择的资源进行重选。这主要是为了排除非周期业务或短周期业务可能带来的干扰。
在资源重评估过程中，在每个SCI发送之前的一个时间点(定义为T3)，需要对此SCI预留的资源进行重新评估，以确定所预留的资源在经过一段时间后，是否仍在候选资源集合内，即是否与其他终端设备占用的资源重叠且所测量的RSRP值大于对应门限。资源重评估过程是基于物理层获得候选资源集合(Step 1)进行的。如果一个资源不再在经过资源重评估过程上报的候选资源集合中，则需要对该资源进行重选。
图3是资源重评估过程的一示例图。如图3所示，m1,m2和m3是一个TB多次发送中的三个资源，且m1指示中预留了m2和m3，则在m1发送之前T3时间的时间点，需要对m1,m2和m3进行重评估，如果有资源(假设为m2)不在资源重评估后的候选资源集合中，则触发对m2的资源重选。
在资源抢占检测过程中，对于一个已经被SCI指示所预留过的资源进行资源抢占检测，以确定所预留的资源在经过一段时间后，是否仍在候选资源集合内，即是否与其他终端设备占用的资源重叠且所测量的RSRP值大于对应门限，且其它终端设备占用的资源所对应的SCI中指示的优先级高于当前待发数据的优先级。资源抢占检测过程是基于物理层获得候选资源集合(Step 1)进行的。如果一个资源不再在经过资源抢占检测过程上报的候选资源集合中、且与之重叠的其他终端设备占用的资源对应的SCI中指示的优先级高于当待发数据的优先级，则需要对该资源进行重选。
图4是资源抢占检测过程的一示例图。如图4所示，m1,m2和m3是一个TB多次发送中的三个资源，且m1指示中预留了m2和m3，在m1发送之后m2发送之前的某个时间点，UE发现m2资源被抢占，则可以在m2之前的T3时间点或之前，触发对m2的资源重选。
在边链路通信中，由于终端设备的感知范围受限，可能会出现隐藏节点的问题，从而导致出现资源碰撞，降低了边链路的可靠性。此外，还可能会出现暴露节点的问题，导致过度的资源排除，同样会对系统性能产生影响。
图5是本申请实施例的一场景示例图，如图5所示，UE B要发送边链路数据给UE A，UE A附近还有一个UE B无法感知到的UE C。由于UE B和UE C互相之间无法感知，那么可能会导致UE B选择的资源与UE C选择的资源重叠，这样UE B发送给UE A的数据和UE C发送给UE A的数据之间会产生干扰。即，UE C作为UE B的一个隐藏节点，可能会干扰UE B到UE A的数据发送。
在这种情况下，UE C的资源占用和预留情况可以由UE A通过感知过程获得。如果UE A能够将UE C的资源使用情况作为资源集合(可称为协作信息或辅助信息)发送给UE B，则UE B能够在其资源选择过程中将这些被UE C占用的资源排除，能够降低资源发生碰撞的概率，增加边链路传输的可靠性。
以上以隐藏节点为例进行了说明，本申请不限于此。UE A上报的资源集合可以包括偏好(preferred)的一个或多个资源，也可以包括不偏好(non-preferred)的一个或多个资源。UE B在其前所述的资源选择过程中，考虑UE A上报的资源集合中的一个或 多个资源。
图6是本申请实施例的协作信息被使用的一示例图，以偏好(preferred)的资源集合为例进行说明。例如，如果UE A上报的资源集合标记为“preferred”，则UE B在资源选择过程中，将自身通过感知获得的候选资源集合(集合B)与UE A上报的资源集合(集合A)取交集，在二者的交集中随机选择一个或多个资源用于数据发送。
再例如，如果UE A上报的resource set标记为“non-preferred”，则在资源选择过程中，UE B额外地从集合B中将集合A内的这些资源排除，在排除后的剩余候选资源集合内随机选择一个或多个资源用于数据发送。
以上示意性说明了将资源集合作为协作信息的方案(可以称为方案1)。此外还可以将指示信息(例如重选指示)作为协作信息的方案(可以称为方案2)。例如，UE A不直接上报preferred或non-preferred的资源集合，而是在检测到UE B和另外一个UE(例如UE C)所预留的资源发生了碰撞时，UE A可以向UE B上报资源的重选指示，触发UE B进行资源重选。
图7是本申请实施例的协作信息被使用的另一示例图，以重选指示为例进行说明。如图7所述，UE A可以向UE B发送重选指示(例如1比特)。UE A上报用于指示资源碰撞的重选指示的触发条件包括：UE C的预留资源和UE B的预留资源部分或完全重叠；此外还可以包括：UE C预留资源对应的优先级值小于UE B的预留资源(优先级值越小，则优先级越高)，和/或，对UE C的PSCCH或PSSCH对应的DMRS检测的RSRP大于门限。
对于上报资源集合的方案1来说，UE A上报了其“preferred”或者“non-preferred”的资源，UE B可以在资源选择过程中考虑该协作信息，优先选择“preferred”的资源和/或排除“non-preferred”的资源，使得所选择的资源可靠性高，不易与其它设备选择的资源发生碰撞。但是，频繁地进行上报可能会导致系统开销较大，协作信息占用资源较多；此外，如果长时间不对资源集合进行更新，上报的资源集合中的资源可能随着时间而状态发生改变，从而降低资源的可靠性。
对于上报指示信息的方案2来说，上报指示信息所需的比特数比较少，不会造成过大开销。但是，对于某些资源，可能无法通过UE A的指示信息进行协调。例如，首次发送的资源(在之前无边链路发送所以不能被预留)；与前一个发送资源的间隔大于31个时隙(slot)的资源，此时其无法被前一个资源所预留；由于被抢占、优先级等原因重新选择的资源，也可能没有被预留。
对于这些资源，上述方案2上报重选指示必须依赖于UE B所发送的SCI中的资源预留信息，重选指示是针对已经被UE B预留的资源进行的。即，对这些没有被UE B预留的资源，无法通过UE A的协作信息进行资源重评估(re-evaluation)，因此无法触发UE A发送对应的重选指示，从而无法获得设备协作带来的可靠性增益。
针对上述问题的至少之一，以下对本申请实施例进行进一步说明。
在本申请实施例中，在不引起混淆的情况下，术语“PSFCH”和“边链路反馈信道”可以互换，术语“PSCCH”和“边链路控制信道”或“边链路控制信息”可以互换，术语“PSSCH”和“边链路数据信道”或“边链路数据”也可以互换。另外，发送(transmitting)或接收(receiving)PSCCH可以理解为发送或接收由PSCCH承载的边链路控制信息；发送或接收PSSCH可以理解为发送或接收由PSSCH承载的边链路数据；发送或接收PSFCH可以理解为发送或接收由PSFCH承载的边链路反馈信息。边链路发送(Sidelink transmission，也可称为边链路传输)可以理解为PSCCH/PSSCH发送或者边链路数据/信息发送。
第一方面的实施例
本申请实施例提供一种边链路协作信息的指示方法，从第一终端设备(UE A)进行说明。其中第一终端设备向第二终端设备发送协作信息。
图8是本申请实施例的边链路协作信息的指示方法的示意图。如图8所示，该方法包括：
801，第一终端设备对资源集合中的至少一个资源进行监测；
802，第一终端设备确定是否监测到所述资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠；以及
803，在所述第一资源与所述一个或多个第二资源部分或完全重叠的情况下，所述第一终端设备在所述第一资源之前对应的第一时隙向第二终端设备发送重选指示。
值得注意的是，以上附图8仅对本申请实施例进行了示意性说明，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图8的记载。
在一些实施例中，该资源集合可以是第一终端设备(UE A)通过自身感知后形成的资源集合，也可以是第一终端设备(UE A)和第二终端设备(UE B)预先达成一致的 资源集合，本申请不限于此。
例如，该资源集合中包括但不限于如下之一的资源：首次发送的资源，与前一个发送资源的间隔大于31个时隙(slot)的资源，由于被抢占、优先级等原因重新选择的资源。
由此，在没有第二终端设备的资源预留信息的情况下，对于该资源集合中包括的资源，如果该资源与其他终端设备预留的资源发生部分或完全的重叠(也可称为冲突或碰撞)，则第一终端设备可以向第二终端设备上报重选指示，从而能够进一步获得设备协作带来的可靠性增益。
在一些实施例中，所述重选指示通过物理边链路反馈控制信道(PSFCH)承载。
例如，UE A可以预先确定一个与UE B达成一致的资源集合，然后UE A持续对该资源集合中的资源进行监测，如果该集合中的一个资源与其它终端设备预留的资源发生了部分或完全的重叠，UE A在这个资源之前的对应时隙通过PSFCH向UE B上报重选指示；该对应时隙可以是该资源之前满足处理时间(例如T3)的时隙。
在一些实施例中，第一终端设备可以将该资源集合发送给第二终端设备。所述资源集合包括第一终端设备偏好的资源。
例如，UE B在资源选择时触发UE A进行资源集合的上报，UE A可以将通过感知形成的资源集合的一部分或全部资源作为向UE B上报的资源集合，并将该资源集合标注为“preferred”后上报给UE B。
然后UE A持续对该资源集合中的资源进行监测，如果该集合中的一个资源与其它终端设备预留的资源发生了部分或完全的重叠，UE A在这个资源之前的对应时隙通过PSFCH向UE B上报重选指示；该对应时隙可以是该资源之前满足处理时间(例如T3)的时隙。
在一些实施例中，所述资源集合承载在物理边链路控制信道(PSCCH)中发送的第一级边链路控制信息(1 st SCI)中，或者承载在物理边链路共享信道中(PSSCH)发送的第二级边链路控制信息(2 nd SCI)中，或者承载在所述物理边链路共享信道(PSSCH)中发送的介质访问控制(MAC)控制元素(CE)中，或者承载在所述物理边链路共享信道(PSSCH)中发送的无线资源控制(RRC)消息中。
在一些实施例中，所述对应的第一时隙与所述第一资源所在的第二时隙至少间隔预定的处理时间。例如，该处理时间为T3，本申请不限于此。
在一些实施例中，所述第一资源的优先级值大于所述第二资源的优先级值，和/或， 所述第二资源对应的RSRP检测值大于门限值，和/或，信道忙率(CBR)的检测值大于门限值，和/或，信道忙率(CBR)的检测值小于或等于门限值。
例如，UE A在额外地满足如上条件的一个或多个的情况下，才上报该重选指示。由此，可以对UE A的上报条件增加额外的限制，从而可以进一步避免过于频繁的上报，降低资源开销。
图9是本申请实施例的边链路协作信息的一示例图。如图9所示，UE B在资源选择时触发UE A进行资源集合的上报(如901所示)，UE A可以将通过感知获得的资源集合的一部分或全部资源作为向UE B上报的资源集合，具体包括但不限于将测量的RSRP结果小于等于门限的资源包括在资源集合内，并将该资源集合标注为“preferred”后上报给UE B(如902所示)。
然后，UE A可以监测来自UE B和其它终端设备的SCI，如果来自UE B的SCI所指示的一个预留资源(如903所示)与其它终端设备预留的资源发生了部分或完全的重叠，UE A在这个资源之前的对应时隙(如904所示)通过PSFCH向UE B上报重选指示；该对应时隙(如904所示)可以是该资源(如903所示)之前满足处理时间(例如T3)的时隙。UE B可以根据该重选指示进行资源重选。
由此，可以将方案1和方案2结合起来。即，UE B在进行初始资源选择时，触发UE A上报“preferred”的资源集合，UE B进行资源选择之后，如果UE A检测到UE B的预留资源与其它UE预留资源发送部分或完全的重叠，则UE A可以在UE B指示预留的资源之前一段时间(如processing time T3之前的最近的一次反馈机会)，向UE B发送重选指示，UE B可以触发资源重选，类似于UE B的抢占检测过程。从而能够在开销不过大的情况下保证系统可靠性。
图10是本申请实施例的边链路协作信息的另一示例图。如图10所示，UE B在资源选择时触发UE A进行资源集合的上报(如1001所示)，UE A可以将通过感知形成的资源集合的一部分或全部资源作为向UE B上报的资源集合，并将该资源集合标注为“preferred”后上报给UE B(如1002所示)。
然后，UE A持续对该资源集合中的资源进行监测，如果该集合中的一个资源(如1003所示)与其它终端设备预留的资源发生了部分或完全的重叠，UE A在这个资源之前的对应时隙(如1004所示)通过PSFCH向UE B上报重选指示；该对应时隙(如1004所示)可以是该资源(如1003所示)之前满足处理时间(例如T3)的时隙。UE B可以根据该重选指示进行资源重选。
与图9的例子相比，图10所示的例子中，UE A持续对该资源集合中的资源进行监测。即使对于没有被UE B预留的资源，也能够通过UE A的协作信息进行资源重评估(re-evaluation)，从而能够进一步获得设备协作带来的增益，进一步提升可靠性。
在一些实施例中，第一终端设备监测来自所述第二终端设备的边链路控制信息；确定是否接收到来自所述第二终端设备的边链路控制信息或者接收到的边链路控制信息是否包含预留资源指示(后续资源指示)；以及
在没有接收到来自所述第二终端设备的边链路控制信息或接收到的边链路控制信息不包含预留资源指示(后续资源指示)的情况下，所述第一终端设备根据对所述资源集合中资源的监测结果发送所述重选指示；在接收到来自所述第二终端设备的边链路控制信息且所述边链路控制信息包含预留资源指示(后续资源指示)的情况下，所述第一终端设备根据对所述预留资源的监测结果发送所述重选指示。
换言之，UE A可以仅在当前没有UE B后续预留信息的情况下，持续对该资源集合中的资源进行监测并进行重选指示的上报；否则，可以只在UE B预留的后续资源之前如果发生满足条件的事件时，才上报重选指示，即采用前述的方案2。由此，可以获得设备协作带来的可靠性增益，同时降低资源开销。
以上对于方案1和方案2的结合进行了适应性说明。通过方案1和方案2联合使用的机制，在不过分增加发送协作信息所导致的开销的基础上，能够使得UE B所有的预留资源都能够基于UE A的感知结果进行UE协作，能够更大程度的保证所选资源不与其它UE的预留发生碰撞，进一步增大可靠性。
以下再对资源集合的失效判定进行说明，在此由第一终端设备(UE A)判定资源集合的有效性。例如，第一终端设备可以在某些条件被触发(例如定时器超时)的情况下对该资源集合进行有效性判定，也可以周期性地对该资源集合进行有效性判定。
在一些实施例中，第一终端设备确定所述资源集合是否失效；以及在确定所述资源集合失效的情况下，向所述第二终端设备发送失效指示。
在一些实施例中，所述第一终端设备在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数小于或等于门限值、所述资源集合中偏好资源的比例小于或等于门限值、所述资源集合中不偏好资源的个数大于门限值、所述资源集合中不偏好资源的比例大于门限值、所述资源集合对应的定时器(例如在接收到该资源集合时启动)超时、所述第一终端设备确定与所述第二终端设备之间的距离大于门限值、所述第一终端设备确定来自所述第二终端设备的信号的RSRP大于门限值。
例如，UE A可以基于其本身的监测结果，对于上报的“preferred”的资源集合，如果其中变为“non-preferred”的资源数量大于门限值(数量门限值)，或者其中变为“non-preferred”的资源百分比大于门限值(比例门限值)，则认为该资源集合已经失效，向UE B发送失效指示。
再例如，UE A可以基于其本身的监测结果，对于上报的“preferred”的资源集合，如果其中“preferred”的资源数量变得小于或等于门限值(数量门限值)，或者其中“preferred”的资源百分比变得小于或等于门限值(比例门限值)，则认为该资源集合已经失效，向UE B发送失效指示。
再例如，UE A在上报了资源集合后，可以启动一个定时器，当该定时器超时后，则认为该资源集合已经失效，向UE B发送失效指示。
由此，通过该失效指示，可以减少或避免上报的资源集合中的资源随着时间而可用性发生改变的情况，从而提升资源的可靠性。
以上对于UE A上报一次资源集合的情况进行了说明，本申请不限于此。例如，UE A可以向UE B多次发送资源集合(例如周期性地)。UE B在接收到UE A发送的新的资源集合后，旧的资源集合无论被确定或被指示是否失效，均可以被丢弃或不再使用(可视为失效)。
在一些实施例中，所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者在物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
在一些实施例中，所述失效指示通过物理边链路反馈控制信道承载；所述失效指示和所述重选指示使用不同的时频资源。
在一些实施例中，所述失效指示和所述重选指示通过物理边链路反馈控制信道联合承载；所述失效指示与所述重选指示使用相同的时频资源并被不同的循环移位标识。
例如，UE A可以通过在PSFCH资源中，使用m cs计算的循环移位(cyclic shift)α，来指示上报的不同信息。关于循环移位的具体内容，可以参考相关技术。例如，上述不同信息可以有以下几种组合：
-重选、失效，这需要2个循环移位；
-重选+保持、重选+失效，这需要2个循环移位；
-重选、失效、重选+失效，这需要3个循环移位；
-重选+保持、失效、重选+失效，这需要3个循环移位。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知，第一终端设备对资源集合中的至少一个资源进行监测；在监测到资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠的情况下，第一终端设备在第一资源之前对应的第一时隙向第二终端设备发送重选指示。由此，即使对于没有被第二终端设备的边链路控制信息指示或预留的资源，也能够通过第一终端设备的协作信息进行资源重评估，从而能够获得设备协作带来的可靠性增益提升。
第二方面的实施例
本申请实施例提供一种边链路协作信息的接收方法，从第二终端设备(UE B)进行说明。与第一方面的实施例相同的内容不再赘述。
图11是本申请实施例的边链路协作信息的接收方法的一示意图。如图11所示，该方法包括：
1101，第二终端设备在资源集合中的每个资源之前对应的时隙中进行监测；以及
1102，第二终端设备在第一时隙中监测到第一终端设备发送的重选指示的情况下，对所述第一时隙对应的第一资源进行重选。
值得注意的是，以上附图11仅对本申请实施例进行了示意性说明，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图11的记载。
在一些实施例中，第二终端设备接收第一终端设备发送的所述资源集合。
在一些实施例中，所述重选指示通过物理边链路反馈控制信道(PSFCH)承载。
在一些实施例中，所述资源集合承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
在一些实施例中，所述第一时隙与所述对应的第一资源所在的第二时隙至少间隔预 定的处理时间。例如，该处理时间为T3。
在一些实施例中，所述资源集合包括所述第一终端设备偏好的资源。
例如，UE B在收到UE A上报的标记为“preferred”的资源集合之后，在需要进行边链路发送时，在其自身通过感知获得的资源集合(资源集合B)和UE A上报的资源集合(资源集合A)的交集中，随机选择一个或多个资源进行数据发送。
此外，UE B在资源集合A的每个所选资源之前的对应时隙，监测UE A可能上报的重选指示，该对应时隙可以是所述该资源集合A中的一个资源之前满足处理时间(例如T3)的时隙。
在一些实施例中，第二终端设备确定所述资源集合是否失效。
在一些实施例中，第二终端设备根据资源集合对应的定时器(例如在接收到该资源集合时启动该定时器)是否超时，和/或，是否接收到资源集合的失效指示，来确定该资源集合是否失效。
例如，通过是否接收到资源集合的失效指示，来确定该资源集合是否失效。例如，UE B在接收到UE A发送的失效指示的情况下，确定该失效指示对应的资源集合A失效，对UE A上报的资源集合A进行显式的释放。
再例如，通过资源集合对应的定时器是否超时，来确定该资源集合是否失效。例如，UE B也可以维护一个定时器，当定时器超时之后，确定该定时器对应的资源集合A失效，对UE A上报的资源集合A进行隐式的释放。
再例如，通过资源集合对应的定时器是否超时以及是否接收到资源集合的失效指示，来确定该资源集合是否失效。例如，UE B侧可以维护一个定时器，UE B在该定时器超时且接收到资源集合的失效指示的情况下，才确定对应的资源集合失效；否则确定对应的资源集合有效。
以上对于UE A上报一次资源集合的情况进行了说明，本申请不限于此。例如，UE A可以向UE B多次发送资源集合(例如周期性地)。UE B在接收到UE A发送的新的资源集合后，旧的资源集合无论被确定或被指示是否失效，均可以被丢弃或不再使用(可视为失效)。
在一些实施例中，所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者在物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
在一些实施例中，所述失效指示通过物理边链路反馈控制信道承载；所述失效指示和所述重选指示使用不同的时频资源。
在一些实施例中，所述失效指示和所述重选指示通过物理边链路反馈控制信道联合承载；所述失效指示与所述重选指示使用相同的时频资源并被不同的循环移位标识。
例如，UE A可以通过在PSFCH资源中，使用m cs计算的循环移位(cyclic shift)α，来指示上报的不同信息。关于循环移位的具体内容，可以参考相关技术。例如，上述不同信息可以有以下几种组合：
-重选、失效，这需要2个循环移位；
-重选+保持、重选+失效，这需要2个循环移位；
-重选、失效、重选+失效，这需要3个循环移位；
-重选+保持、失效、重选+失效，这需要3个循环移位。
在一些实施例中，第二终端设备在接收到所述重选指示并且所述资源集合对应的定时器没有超时的情况下，根据自身感知结果和所述资源集合进行资源重选；在接收到所述重选指示并且所述资源集合对应的定时器超时的情况下，根据自身感知结果进行资源重选。
例如，UE B自身确定UE A上报的资源集合对应的定时器未超时(即该资源集合有效)并且接收到该重选指示时，在资源重选过程中仍需要考虑UE A上报的资源集合。
即，如果之前上报的资源集合是“preferred”，则重选时UE B仍需要在其自身通过感知获得的候选资源集合(资源集合B)和UE A之前上报的资源集合(资源集合A)的交集中随机地选择重选资源；如果之前上报的资源集合是“non-preferred”，则重选时UE B仍需要在其自身通过感知获得的候选资源集合(资源集合B)中排除UE A之前上报的资源集合(资源集合A)中包括的资源。
再例如，UE B自身确定UE A上报的资源集合对应的定时器已超时(即该资源集合无效)并且接收到该重选指示时，在资源重选过程中不需要考虑UE A上报的资源集合，只根据UE B自身的感知结果进行重选。并且在此之后收到的重选指示触发的重选中，都不考虑UE A的上报结果，直到UE B再次触发UE A上报资源集合。
在一些实施例中，第二终端设备在接收到所述重选指示并且没有接收到所述资源集合对应的失效指示的情况下，根据自身感知结果和所述资源集合进行资源重选；在接收到所述重选指示并且接收到所述资源集合对应的失效指示的情况下，根据自身感知结果进行资源重选。
例如，UE B如果尚未接收到UE A发送的该资源集合的失效指示，或者收到“重选”指示，或者“重选+保持”指示(即隐含了没有接收到该资源集合的失效指示)，则在资源重选过程中需要考虑UE A上报的资源集合。
即，如果之前上报的资源集合是“preferred”，则重选时UE B仍需要在其自身通过感知获得的候选资源集合(资源集合B)和UE A之前上报的资源集合(资源集合A)的交集中随机地选择重选资源；如果之前上报的资源集合是“non-preferred”，则重选时UE B仍需要在其自身通过感知获得的候选资源集合(资源集合B)中排除UE A之前上报的资源集合(资源集合A)中包括的资源。
再例如，UE B如果收到该资源集合的“失效”指示，或者“重选+失效”指示(即隐含了接收到该资源集合的失效指示)，则在资源重选过程中不需要考虑UE A上报的资源集合，只根据UE B自身的感知结果进行重选。并且在此之后收到的重选指示触发的重选中，都不考虑UE A的上报结果，直到UE B再次触发UE A上报资源集合。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知，第二终端设备在资源集合中的每个资源之前对应的时隙中进行监测；以及在第一时隙中监测到第一终端设备发送的重选指示的情况下，对所述第一时隙对应的第一资源进行重选。由此，即使对于没有被第二终端设备的边链路控制信息指示或预留的资源，也能够通过第一终端设备的协作信息进行资源重评估，从而能够获得设备协作带来的可靠性增益提升。
第三方面的实施例
本申请实施例提供一种边链路协作信息的指示方法，从第一终端设备(UE A)进行说明，与第一方面的实施例相同的内容不再赘述。
图12是本申请实施例的边链路协作信息的指示方法的一示意图。如图12所示，该方法包括：
1201，第一终端设备向第二终端设备发送资源集合；
1202，所述第一终端设备确定所述资源集合是否失效；以及
1203，在确定所述资源集合失效的情况下，向所述第二终端设备发送失效指示。
值得注意的是，以上附图12仅对本申请实施例进行了示意性说明，但本申请不限 于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图12的记载。
在一些实施例中，所述资源集合包括所述第一终端设备偏好的资源。
例如，所述第一终端设备在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数小于或等于门限值、所述资源集合中偏好资源的比例小于或等于门限值、所述资源集合中不偏好资源的个数大于门限值、所述资源集合中不偏好资源的比例大于门限值。
再例如，所述第一终端设备在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数小于或等于门限值、所述资源集合中偏好资源的比例小于或等于门限值、所述资源集合中不偏好资源的个数大于门限值、所述资源集合中不偏好资源的比例大于门限值、所述资源集合对应的定时器超时、所述第一终端设备确定与所述第二终端设备之间的距离大于门限值、所述第一终端设备确定来自所述第二终端设备的信号的RSRP大于门限值。
在一些实施例中，所述资源集合包括所述第一终端设备不偏好的资源。
例如，所述第一终端设备在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数大于门限值、所述资源集合中偏好资源的比例大于门限值、所述资源集合中不偏好资源的个数小于或等于门限值、所述资源集合中不偏好资源的比例小于或等于门限值。
再例如，所述第一终端设备在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数大于门限值、所述资源集合中偏好资源的比例大于门限值、所述资源集合中不偏好资源的个数小于或等于门限值、所述资源集合中不偏好资源的比例小于或等于门限值、所述资源集合对应的定时器超时、所述第一终端设备确定与所述第二终端设备之间的距离大于门限值、所述第一终端设备确定来自所述第二终端设备的信号的RSRP大于门限值。
以上对于UE A上报一次资源集合的情况进行了说明，本申请不限于此。例如，UE A可以向UE B多次发送资源集合(例如周期性地)。UE B在接收到UE A发送的新的资源集合后，旧的资源集合无论被确定或被指示是否失效，均可以被丢弃或不再使用(可视为失效)。
在一些实施例中，所述失效指示通过物理边链路反馈控制信道承载。
在一些实施例中，所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知，第一终端设备向第二终端设备发送资源集合，确定资源集合是否失效；以及在确定所述资源集合失效的情况下，向第二终端设备发送失效指示。由此，可以减少或避免上报的资源集合中的资源随着时间而可用性发生改变的情况，从而提升资源的可靠性。
第四方面的实施例
本申请实施例提供一种边链路协作信息的接收方法，从第二终端设备(UE B)进行说明，与第二方面的实施例相同的内容不再赘述。本申请实施例的资源集合可以用于资源初选过程中，也可以用于资源重选过程中。
图13是本申请实施例的边链路协作信息的接收方法的一示意图。如图13所示，该方法包括：
1301，第二终端设备接收第一终端设备发送的资源集合；以及
1302，所述第二终端设备确定所述资源集合是否失效。
值得注意的是，以上附图13仅对本申请实施例进行了示意性说明，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图13的记载。
在一些实施例中，所述第二终端设备根据所述资源集合对应的定时器是否超时，和/或，是否接收到所述资源集合的失效指示，来确定所述资源集合是否失效。
在一些实施例中，无论是资源的初选(例如针对不同HARQ prcess)还是资源的重选(例如针对同一HARQ process)，均需要考虑该资源集合的有效性。即，在资源初选和/或资源重选的过程中，第二终端设备基于所述资源集合是否有效，进行资源重选。
具体地，第二终端设备在所述资源集合有效的情况下，可以根据自身感知结果和所 述资源集合进行资源重选；在所述资源集合失效的情况下，可以根据自身感知结果进行资源重选。
例如，UE B在接收到UE A发送的资源集合时可以开启该资源集合对应的定时器。在该定时器未超时的情况下，该资源集合可以在资源初选或者资源重选过程中被使用；在该定时器超时的情况下，该资源集合不能在资源初选或者资源重选过程中被使用。
再例如，在UE B没有接收到来自UE A的该资源集合的失效指示的情况下，该资源集合可以在接下来的资源初选或者资源重选过程中被使用；在UE B接收到来自UE A的该资源集合的失效指示的情况下，该资源集合不能在接下来的资源初选或者资源重选过程中被使用。
以上对于UE A上报一次资源集合的情况进行了说明，本申请不限于此。例如，UE A可以向UE B多次发送资源集合(例如周期性地)。UE B在接收到UE A发送的新的资源集合后，旧的资源集合无论被确定或被指示是否失效，均可以被丢弃或不再使用(可视为失效)。
在一些实施例中，所述失效指示通过物理边链路反馈控制信道承载。
在一些实施例中，所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
在一些实施例中，所述资源集合包括所述第一终端设备偏好的资源，和/或，所述资源集合包括所述第一终端设备不偏好的资源。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知，第二终端设备接收第一终端设备发送的资源集合；以及第二终端设备确定所述资源集合是否失效。由此，可以减少或避免上报的资源集合中的资源随着时间而可用性发生改变的情况，从而提升资源的可靠性。
第五方面的实施例
本申请实施例提供一种边链路协作信息的指示装置。该装置例如可以是终端设备 (第一终端设备)，也可以是配置于终端设备的某个或某些部件或者组件，与第一方面的实施例相同的内容不再赘述。
图14是本申请实施例的边链路协作信息的指示装置的一示意图。如图14所示，边链路协作信息的指示装置1400包括：
监测单元1401，其对资源集合中的至少一个资源进行监测；
确定单元1402，其确定是否监测到所述资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠；以及
发送单元1403，其在所述第一资源与所述一个或多个第二资源部分或完全重叠的情况下，在所述第一资源之前对应的第一时隙向第二终端设备发送重选指示。
在一些实施例中，发送单元1403还将所述资源集合发送给所述第二终端设备，所述资源集合包括所述第一终端设备偏好的资源。
在一些实施例中，所述重选指示通过物理边链路反馈控制信道承载，所述对应的第一时隙与所述第一资源所在的第二时隙至少间隔预定的处理时间。
在一些实施例中，所述资源集合承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者在物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制控制元素中，或者所述物理边链路共享信道中发送的无线资源控制消息中。
在一些实施例中，所述第一资源的优先级值大于所述第二资源的优先级值，和/或，所述第二资源对应的RSRP检测值大于门限值，和/或，信道忙率的检测值大于门限值，和/或，信道忙率的检测值小于或等于门限值。
在一些实施例中，监测单元1401还监测来自所述第二终端设备的边链路控制信息；确定单元1402还确定是否接收到来自所述第二终端设备的边链路控制信息或者接收到的边链路控制信息是否包含预留资源指示(后续资源指示)；以及
发送单元1403还在没有接收到来自所述第二终端设备的边链路控制信息或接收到的边链路控制信息不包含预留资源指示(后续资源指示)的情况下，根据对所述资源集合中资源的监测结果发送所述重选指示；在接收到来自所述第二终端设备的边链路控制信息且所述边链路控制信息包含预留资源指示(后续资源指示)的情况下，根据对所述预留资源的监测结果发送所述重选指示。
在一些实施例中，确定单元1402还确定所述资源集合是否失效；以及发送单元1403还在确定所述资源集合失效的情况下，向所述第二终端设备发送失效指示。
在一些实施例中，确定单元1402在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数小于或等于门限值、所述资源集合中偏好资源的比例小于或等于门限值、所述资源集合中不偏好资源的个数大于门限值、所述资源集合中不偏好资源的比例大于门限值、所述资源集合对应的定时器超时、所述第一终端设备确定与所述第二终端设备之间的距离大于门限值、所述第一终端设备确定来自所述第二终端设备的信号的RSRP大于门限值。
在一些实施例中，所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者在物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制控制元素中，或者所述物理边链路共享信道中发送的无线资源控制消息中。
在一些实施例中，所述失效指示通过物理边链路反馈控制信道承载；所述失效指示和所述重选指示使用不同的时频资源。
在一些实施例中，所述失效指示和所述重选指示通过物理边链路反馈控制信道联合承载；所述失效指示与所述重选指示使用相同的时频资源并被不同的循环移位标识。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。边链路协作信息的指示装置1400还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图14中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
由上述实施例可知，第一终端设备对资源集合中的至少一个资源进行监测；在监测到资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠的情况下，第一终端设备在第一资源之前对应的第一时隙向第二终端设备发送重选指示。由此，即使对于没有被第二终端设备的边链路控制信息指示或预留的资源，也能够通过第一终端设备的协作信息进行资源重评估，从而能够获得设备协作带来的可靠性增益提升。
第六方面的实施例
本申请实施例提供一种边链路协作信息的指示装置。该装置例如可以是终端设备(第一终端设备)，也可以是配置于终端设备的某个或某些部件或者组件，与第三方面的实施例相同的内容不再赘述。
图15是本申请实施例的边链路协作信息的指示装置的一示意图。如图15所示，边链路协作信息的指示装置1500包括：
发送单元1501，其向第二终端设备发送资源集合；以及
确定单元1502，其确定所述资源集合是否失效；
发送单元1501还在确定所述资源集合失效的情况下，向所述第二终端设备发送失效指示。
在一些实施例中，所述资源集合包括所述第一终端设备偏好的资源；在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数小于或等于门限值、所述资源集合中偏好资源的比例小于或等于门限值、所述资源集合中不偏好资源的个数大于门限值、所述资源集合中不偏好资源的比例大于门限值。
在一些实施例中，所述资源集合包括所述第一终端设备不偏好的资源；在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数大于门限值、所述资源集合中偏好资源的比例大于门限值、所述资源集合中不偏好资源的个数小于或等于门限值、所述资源集合中不偏好资源的比例小于或等于门限值。
在一些实施例中，确定单元1502还在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合对应的定时器超时、所述第一终端设备确定与所述第二终端设备之间的距离大于门限值、所述第一终端设备确定来自所述第二终端设备的信号的RSRP大于门限值。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。边链路协作信息的指示装置1500还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图15中仅示例性示出了各个部件或模块之间的连接关系或 信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
由上述实施例可知，第一终端设备向第二终端设备发送资源集合，确定资源集合是否失效；以及在确定所述资源集合失效的情况下，向第二终端设备发送失效指示。由此，可以减少或避免上报的资源集合中的资源随着时间而可用性发生改变的情况，从而提升资源的可靠性。
第七方面的实施例
本申请实施例提供一种边链路协作信息的接收装置。该装置例如可以是终端设备(第二终端设备)，也可以是配置于终端设备的某个或某些部件或者组件，与第二方面的实施例相同的内容不再赘述。
图16是本申请实施例的边链路协作信息的接收装置的一示意图。如图16所示，边链路协作信息的接收装置1600包括：
监测单元1601，其在资源集合中的每个资源之前对应的时隙中进行监测；以及
处理单元1602，其在第一时隙中监测到第一终端设备发送的重选指示的情况下，对所述第一时隙对应的第一资源进行重选。
在一些实施例中，如图16所示，所述装置还包括：
接收单元1603，其接收所述第一终端设备发送的所述资源集合，所述资源集合包括所述第一终端设备偏好的资源。
在一些实施例中，所述重选指示通过物理边链路反馈控制信道承载，所述第一时隙与所述对应的第一资源所在的第二时隙至少间隔预定的处理时间。
在一些实施例中，所述资源集合承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制控制元素中，或者所述物理边链路共享信道中发送的无线资源控制消息中。
在一些实施例中，处理单元1602还确定所述资源集合是否失效；其中，所述处理单元1602根据所述资源集合对应的定时器是否超时，和/或，是否接收到所述资源集合的失效指示，来确定所述资源集合是否失效。
在一些实施例中，所述失效指示承载在物理边链路控制信道中发送的第一级边链路 控制信息中，或者在物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制控制元素中，或者所述物理边链路共享信道中发送的无线资源控制消息中。
在一些实施例中，所述失效指示通过物理边链路反馈控制信道承载；所述失效指示和所述重选指示使用不同的时频资源。
在一些实施例中，所述失效指示和所述重选指示通过物理边链路反馈控制信道联合承载；所述失效指示与所述重选指示使用相同的时频资源并被不同的循环移位标识。
在一些实施例中，处理单元1602还在接收到所述重选指示并且所述资源集合对应的定时器没有超时的情况下，根据自身感知结果和所述资源集合进行资源重选；在接收到所述重选指示并且所述资源集合对应的定时器超时的情况下，根据自身感知结果进行资源重选。
在一些实施例中，处理单元1602还在接收到所述重选指示并且没有接收到所述失效指示的情况下，根据自身感知结果和所述资源集合进行资源重选；在接收到所述重选指示并且接收到所述失效指示的情况下，根据自身感知结果进行资源重选。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。边链路协作信息的接收装置1600还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图16中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
由上述实施例可知，第二终端设备在资源集合中的每个资源之前对应的时隙中进行监测；以及在第一时隙中监测到第一终端设备发送的重选指示的情况下，对所述第一时隙对应的第一资源进行重选。由此，即使对于没有被第二终端设备的边链路控制信息指示或预留的资源，也能够通过第一终端设备的协作信息进行资源重评估，从而能够获得设备协作带来的可靠性增益提升。
第八方面的实施例
本申请实施例提供一种边链路协作信息的接收装置。该装置例如可以是终端设备(第二终端设备)，也可以是配置于终端设备的某个或某些部件或者组件，与第四方面的实施例相同的内容不再赘述。
图17是本申请实施例的边链路协作信息的接收装置的一示意图。如图17所示，边链路协作信息的接收装置1700包括：
接收单元1701，其接收第一终端设备发送的资源集合；以及
确定单元1702，其确定所述资源集合是否失效。
在一些实施例中，确定单元1702根据所述资源集合对应的定时器是否超时，和/或，是否接收到所述资源集合的失效指示，来确定所述资源集合失效。
在一些实施例中，所述失效指示通过物理边链路反馈控制信道承载。
在一些实施例中，所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
在一些实施例中，所述资源集合包括所述第一终端设备偏好的资源，和/或，所述资源集合包括所述第一终端设备不偏好的资源。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。边链路协作信息的接收装置1700还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图17中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
由上述实施例可知，第二终端设备接收第一终端设备发送的资源集合；以及第二终端设备确定所述资源集合是否失效。由此，可以减少或避免上报的资源集合中的资源随着时间而可用性发生改变的情况，从而提升资源的可靠性。
第九方面的实施例
本申请实施例还提供一种通信系统，可以参考图1，与第一方面至第八方面的实施例相同的内容不再赘述。
在一些实施例中，通信系统100至少可以包括：
第一终端设备102，其对资源集合中的至少一个资源进行监测；确定是否监测到所述资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠；以及在所述第一资源与所述一个或多个第二资源部分或完全重叠的情况下，在所述第一资源之前对应的第一时隙发送重选指示；
第二终端设备103，其在资源集合中的每个资源之前对应的时隙中进行监测；以及在第一时隙中监测到所述第一终端设备发送的所述重选指示的情况下，对所述第一时隙对应的第一资源进行重选。
在一些实施例中，通信系统100至少可以包括：
第一终端设备102，其发送资源集合；确定所述资源集合是否失效；以及在确定所述资源集合失效的情况下发送失效指示；
第二终端设备103，其接收所述第一终端设备发送的所述资源集合；以及确定所述资源集合是否失效。
本申请实施例还提供一种网络设备，例如可以是基站，但本申请不限于此，还可以是其他的网络设备。
图18是本申请实施例的网络设备的构成示意图。如图18所示，网络设备1800可以包括：处理器1810(例如中央处理器CPU)和存储器1820；存储器1820耦合到处理器1810。其中该存储器1820可存储各种数据；此外还存储信息处理的程序1830，并且在处理器1810的控制下执行该程序1830。
此外，如图18所示，网络设备1800还可以包括：收发机1840和天线1850等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备1800也并不是必须要包括图18中所示的所有部件；此外，网络设备1800还可以包括图18中没有示出的部件，可以参考现有技术。
本申请实施例还提供一种终端设备，但本申请不限于此，还可以是其他的设备。
图19是本申请实施例的终端设备的示意图。如图19所示，该终端设备1900可以包括处理器1910和存储器1920；存储器1920存储有数据和程序，并耦合到处理器1910。 值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。
例如，处理器1910可以被配置为执行程序而实现如第一方面的实施例所述的边链路协作信息的指示方法。例如处理器1910可以被配置为进行如下的控制：对资源集合中的至少一个资源进行监测；确定是否监测到所述资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠；以及在所述第一资源与所述一个或多个第二资源部分或完全重叠的情况下，所述第一终端设备在所述第一资源之前对应的第一时隙向第二终端设备发送重选指示。
再例如，处理器1910可以被配置为执行程序而实现如第二方面的实施例所述的边链路协作信息的接收方法。例如处理器1910可以被配置为进行如下的控制：在资源集合中的每个资源之前对应的时隙中进行监测；以及在第一时隙中监测到第一终端设备发送的重选指示的情况下，对所述第一时隙对应的第一资源进行重选。
再例如，处理器1910可以被配置为执行程序而实现如第三方面的实施例所述的边链路协作信息的指示方法。例如处理器1910可以被配置为进行如下的控制：向第二终端设备发送资源集合；确定所述资源集合是否失效；以及在确定所述资源集合失效的情况下，向所述第二终端设备发送失效指示。
再例如，处理器1910可以被配置为执行程序而实现如第四方面的实施例所述的边链路协作信息的接收方法。例如处理器1910可以被配置为进行如下的控制：接收第一终端设备发送的资源集合；以及确定所述资源集合是否失效。
如图19所示，该终端设备1900还可以包括：通信模块1930、输入单元1940、显示器1950、电源1960。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，终端设备1900也并不是必须要包括图19中所示的所有部件，上述部件并不是必需的；此外，终端设备1900还可以包括图19中没有示出的部件，可以参考现有技术。
本申请实施例还提供一种计算机程序，其中当在终端设备中执行所述程序时，所述程序使得所述终端设备执行第一至第四方面的实施例所述的边链路协作信息的指示方法或者边链路协作信息的接收方法。
本申请实施例还提供一种存储有计算机程序的存储介质，其中所述计算机程序使得终端设备执行第一至第四方面的实施例所述的边链路协作信息的指示方法或者边链路协作信息的接收方法。
本申请以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本申请涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本申请还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本申请实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本申请进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本申请保护范围的限制。本领域技术人员可以根据本申请的精神和原理对本申请做出各种变型和修改，这些变型和修改也在本申请的范围内。
关于包括以上实施例的实施方式，还公开下述的附记：
附记1.一种边链路协作信息的指示方法，包括：
第一终端设备对资源集合中的至少一个资源进行监测；
确定是否监测到所述资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠；以及
在所述第一资源与所述一个或多个第二资源部分或完全重叠的情况下，所述第一终端设备在所述第一资源之前对应的第一时隙向第二终端设备发送重选指示。
附记2.根据附记1所述的方法，其中，所述方法还包括：
所述第一终端设备将所述资源集合发送给所述第二终端设备。
附记3.根据附记1或2所述的方法，其中，所述重选指示通过物理边链路反馈控制信道承载。
附记4.根据附记2所述的方法，其中，所述资源集合承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者在物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
附记5.根据附记1至4任一项所述的方法，其中，所述资源集合包括所述第一终端设备偏好的资源。
附记6.根据附记1至5任一项所述的方法，其中，所述对应的第一时隙与所述第一资源所在的第二时隙至少间隔预定的处理时间。
附记7.根据附记1至6任一项所述的方法，其中，所述第一资源的优先级值大于所述第二资源的优先级值，和/或，所述第二资源对应的RSRP检测值大于门限值，和/或，信道忙率(CBR)的检测值大于门限值，和/或，信道忙率(CBR)的检测值小于或等于门限值。
附记8.根据附记1至7任一项所述的方法，其中，所述方法还包括：
所述第一终端设备监测来自所述第二终端设备的边链路控制信息；
确定是否接收到来自所述第二终端设备的边链路控制信息或者接收到的边链路控制信息是否包含预留资源指示(后续资源指示)；以及
在没有接收到来自所述第二终端设备的边链路控制信息或接收到的边链路控制信息不包含预留资源指示(后续资源指示)的情况下，所述第一终端设备根据对所述资源集合中资源的监测结果发送所述重选指示；在接收到来自所述第二终端设备的边链路控制信息且所述边链路控制信息包含预留资源指示(后续资源指示)的情况下，所述第一终端设备根据对所述预留资源的监测结果发送所述重选指示。
附记9.根据附记2所述的方法，其中，所述方法还包括：
所述第一终端设备确定所述资源集合是否失效；以及
在确定所述资源集合失效的情况下，向所述第二终端设备发送失效指示。
附记10.根据附记9所述的方法，其中，所述第一终端设备在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数小于或等于门限值、所述资源集合中偏好资源的比例小于或等于门限值、所述资源集合中不偏好资源的个数大于门限值、所述资源集合中不偏好资源的比例大于门限值、所述资源集合对应的定时器超时、所述第一终端设备确定与所述第二终端设备之间的距离大于门限值、所述第一终端设备确定来自所述第二终端设备的信号的RSRP大于门限值。
附记11.根据附记9或10所述的方法，其中，所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者在物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
附记12.根据附记9或10所述的方法，其中，所述失效指示通过物理边链路反馈控制信道承载；所述失效指示和所述重选指示使用不同的时频资源。
附记13.根据附记9或10所述的方法，其中，所述失效指示和所述重选指示通过物理边链路反馈控制信道联合承载；所述失效指示与所述重选指示使用相同的时频资源并被不同的循环移位标识。
附记14.一种边链路协作信息的接收方法，包括：
第二终端设备在资源集合中的每个资源之前对应的时隙中进行监测；以及
在第一时隙中监测到第一终端设备发送的重选指示的情况下，对所述第一时隙对应的第一资源进行重选。
附记15.根据附记14所述的方法，其中，所述方法还包括：
所述第二终端设备接收所述第一终端设备发送的所述资源集合。
附记16.根据附记14或15所述的方法，其中，所述重选指示通过物理边链路反馈控制信道承载。
附记17.根据附记14或15所述的方法，其中，所述资源集合承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
附记18.根据附记14至17任一项所述的方法，其中，所述第一时隙与所述对应的 第一资源所在的第二时隙至少间隔预定的处理时间。
附记19.根据附记14至18任一项所述的方法，其中，所述资源集合包括所述第一终端设备偏好的资源。
附记20.根据附记14至19任一项所述的方法，其中，所述方法还包括：
所述第二终端设备确定所述资源集合是否失效。
附记21.根据附记20所述的方法，其中，所述第二终端设备根据所述资源集合对应的定时器是否超时和/或是否接收到所述第一终端设备发送的所述资源集合的失效指示，来确定所述资源集合是否失效。
附记22.根据附记21所述的方法，其中，所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者在物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
附记23.根据附记21所述的方法，其中，所述失效指示通过物理边链路反馈控制信道承载；所述失效指示和所述重选指示使用不同的时频资源。
附记24.根据附记21所述的方法，其中，所述失效指示和所述重选指示通过物理边链路反馈控制信道联合承载；所述失效指示与所述重选指示使用相同的时频资源并被不同的循环移位标识。
附记25.根据附记20至24任一项所述的方法，其中，所述方法还包括：
所述第二终端设备在接收到所述重选指示并且所述资源集合对应的定时器没有超时的情况下，根据自身感知结果和所述资源集合进行资源重选；在接收到所述重选指示并且所述资源集合对应的定时器超时的情况下，根据自身感知结果进行资源重选。
附记26.根据附记21至24任一项所述的方法，其中，所述方法还包括：
所述第二终端设备在接收到所述重选指示并且没有接收到所述失效指示的情况下，根据自身感知结果和所述资源集合进行资源重选；在接收到所述重选指示并且接收到所述失效指示的情况下，根据自身感知结果进行资源重选。
附记27.一种边链路协作信息的指示方法，包括：
第一终端设备向第二终端设备发送资源集合；
所述第一终端设备确定所述资源集合是否失效；以及
在确定所述资源集合失效的情况下，向所述第二终端设备发送失效指示。
附记28.根据附记27所述的方法，其中，所述资源集合包括所述第一终端设备偏 好的资源。
附记29.根据附记28所述的方法，其中，所述第一终端设备在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数小于或等于门限值、所述资源集合中偏好资源的比例小于或等于门限值、所述资源集合中不偏好资源的个数大于门限值、所述资源集合中不偏好资源的比例大于门限值。
附记30.根据附记27所述的方法，其中，所述资源集合包括所述第一终端设备不偏好的资源。
附记31.根据附记30所述的方法，其中，所述第一终端设备在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数大于门限值、所述资源集合中偏好资源的比例大于门限值、所述资源集合中不偏好资源的个数小于或等于门限值、所述资源集合中不偏好资源的比例小于或等于门限值。
附记32.根据附记27至31任一项所述的方法，其中，所述第一终端设备在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合对应的定时器超时、所述第一终端设备确定与所述第二终端设备之间的距离大于门限值、所述第一终端设备确定来自所述第二终端设备的信号的RSRP大于门限值。
附记33.根据附记27至32任一项所述的方法，其中，所述失效指示通过物理边链路反馈控制信道承载。
附记34.根据附记27至32任一项所述的方法，其中，所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
附记35.一种边链路协作信息的接收方法，包括：
第二终端设备接收第一终端设备发送的资源集合；以及
所述第二终端设备确定所述资源集合是否失效。
附记36.根据附记35所述的方法，其中，所述第二终端设备根据所述资源集合对应的定时器是否超时，和/或，是否接收到所述资源集合的失效指示，来确定所述资源集合是否失效。
附记37.根据附记35或36所述的方法，其中，所述失效指示通过物理边链路反馈控制信道承载。
附记38.根据附记35或36所述的方法，其中，所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制(MAC)控制元素(CE)中，或者所述物理边链路共享信道中发送的无线资源控制(RRC)消息中。
附记39.根据附记35至38任一项所述的方法，其中，所述资源集合包括所述第一终端设备偏好的资源，和/或，所述资源集合包括所述第一终端设备不偏好的资源。
附记40.根据附记35至39任一项所述的方法，其中，所述方法还包括：
所述第二终端设备在资源初选和/或资源重选的过程中，基于所述资源集合是否有效进行资源重选。
附记41.根据附记40所述的方法，其中，所述第二终端设备在所述资源集合有效的情况下，根据自身感知结果和所述资源集合进行资源重选；在所述资源集合失效的情况下，根据自身感知结果进行资源重选。
附记42.一种终端设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记1至41任一项所述的边链路协作信息的指示方法或者边链路协作信息的接收方法。
附记43.一种通信系统，包括：
第一终端设备，其对资源集合中的至少一个资源进行监测；确定是否监测到所述资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠；以及在所述第一资源与所述一个或多个第二资源部分或完全重叠的情况下，在所述第一资源之前对应的第一时隙发送重选指示；
第二终端设备，其在资源集合中的每个资源之前对应的时隙中进行监测；以及在第一时隙中监测到所述第一终端设备发送的所述重选指示的情况下，对所述第一时隙对应的第一资源进行重选。
附记44.一种通信系统，包括：
第一终端设备，其发送资源集合；确定所述资源集合是否失效；以及在确定所述资源集合失效的情况下发送失效指示；
第二终端设备，其接收所述第一终端设备发送的所述资源集合；以及确定所述资源集合是否失效。

Claims (20)

  1. 一种边链路协作信息的指示装置，配置于第一终端设备，所述装置包括：
    监测单元，其对资源集合中的至少一个资源进行监测；
    确定单元，其确定是否监测到所述资源集合中的第一资源与其他终端设备预留的一个或多个第二资源部分或完全重叠；以及
    发送单元，其在所述第一资源与所述一个或多个第二资源部分或完全重叠的情况下，在所述第一资源之前对应的第一时隙向第二终端设备发送重选指示。
  2. 根据权利要求1所述的装置，其中，所述发送单元还将所述资源集合发送给所述第二终端设备，所述资源集合包括所述第一终端设备偏好的资源。
  3. 根据权利要求1所述的装置，其中，所述重选指示通过物理边链路反馈控制信道承载，所述对应的第一时隙与所述第一资源所在的第二时隙至少间隔预定的处理时间。
  4. 根据权利要求2所述的装置，其中，所述资源集合承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者在物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制控制元素中，或者所述物理边链路共享信道中发送的无线资源控制消息中。
  5. 根据权利要求1所述的装置，其中，所述第一资源的优先级值大于所述第二资源的优先级值，和/或，所述第二资源对应的RSRP检测值大于门限值，和/或，信道忙率的检测值大于门限值，和/或，信道忙率的检测值小于或等于门限值。
  6. 根据权利要求1所述的装置，其中，所述监测单元还监测来自所述第二终端设备的边链路控制信息；
    所述确定单元还确定是否接收到来自所述第二终端设备的边链路控制信息或者接收到的边链路控制信息是否包含预留资源指示；以及
    所述发送单元还在没有接收到来自所述第二终端设备的边链路控制信息或接收到的边链路控制信息不包含预留资源指示的情况下，根据对所述资源集合中资源的监测结果发送所述重选指示；在接收到来自所述第二终端设备的边链路控制信息且所述边链路控制信息包含预留资源指示的情况下，根据对所述预留资源的监测结果发送所述重选指示。
  7. 根据权利要求2所述的装置，其中，所述确定单元还确定所述资源集合是否失效；以及所述发送单元还在确定所述资源集合失效的情况下，向所述第二终端设备发送 失效指示。
  8. 根据权利要求7所述的装置，其中，所述确定单元在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数小于或等于门限值、所述资源集合中偏好资源的比例小于或等于门限值、所述资源集合中不偏好资源的个数大于门限值、所述资源集合中不偏好资源的比例大于门限值、所述资源集合对应的定时器超时、所述第一终端设备确定与所述第二终端设备之间的距离大于门限值、所述第一终端设备确定来自所述第二终端设备的信号的RSRP大于门限值。
  9. 根据权利要求7所述的装置，其中，
    所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者在物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制控制元素中，或者所述物理边链路共享信道中发送的无线资源控制消息中；和/或
    所述失效指示通过物理边链路反馈控制信道承载；所述失效指示和所述重选指示使用不同的时频资源；和/或
    所述失效指示和所述重选指示通过物理边链路反馈控制信道联合承载；所述失效指示与所述重选指示使用相同的时频资源并被不同的循环移位标识。
  10. 一种边链路协作信息的接收装置，配置于第二终端设备，所述装置包括：
    监测单元，其在资源集合中的每个资源之前对应的时隙中进行监测；以及
    处理单元，其在第一时隙中监测到第一终端设备发送的重选指示的情况下，对所述第一时隙对应的第一资源进行重选。
  11. 根据权利要求10所述的装置，其中，所述装置还包括：
    接收单元，其接收所述第一终端设备发送的所述资源集合，所述资源集合包括所述第一终端设备偏好的资源。
  12. 根据权利要求10所述的装置，其中，所述重选指示通过物理边链路反馈控制信道承载，所述第一时隙与所述对应的第一资源所在的第二时隙至少间隔预定的处理时间。
  13. 根据权利要求10所述的装置，其中，所述资源集合承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制控制元素中，或者所述物理边链路共享信道中发送的无线资源控制消息中。
  14. 根据权利要求10所述的装置，其中，所述处理单元还确定所述资源集合是否失效；其中，根据所述资源集合对应的定时器是否超时和/或是否接收到所述资源集合对应的失效指示，来确定所述资源集合是否失效。
  15. 根据权利要求14所述的装置，其中，
    所述失效指示承载在物理边链路控制信道中发送的第一级边链路控制信息中，或者在物理边链路共享信道中发送的第二级边链路控制信息中，或者所述物理边链路共享信道中发送的介质访问控制控制元素中，或者所述物理边链路共享信道中发送的无线资源控制消息中；和/或
    所述失效指示通过物理边链路反馈控制信道承载；所述失效指示和所述重选指示使用不同的时频资源；和/或
    所述失效指示和所述重选指示通过物理边链路反馈控制信道联合承载；所述失效指示与所述重选指示使用相同的时频资源并被不同的循环移位标识。
  16. 根据权利要求10所述的装置，其中，所述处理单元还在接收到所述重选指示并且所述资源集合对应的定时器没有超时的情况下，根据自身感知结果和所述资源集合进行资源重选；在接收到所述重选指示并且所述资源集合对应的定时器超时的情况下，根据自身感知结果进行资源重选。
  17. 根据权利要求10所述的装置，其中，所述处理单元还在接收到所述重选指示并且没有接收到所述资源集合的失效指示的情况下，根据自身感知结果和所述资源集合进行资源重选；在接收到所述重选指示并且接收到所述资源集合的失效指示的情况下，根据自身感知结果进行资源重选。
  18. 一种边链路协作信息的指示装置，配置于第一终端设备，所述装置包括：
    发送单元，其向第二终端设备发送资源集合；以及
    确定单元，其确定所述资源集合是否失效；
    所述发送单元还在确定所述资源集合失效的情况下，向所述第二终端设备发送失效指示。
  19. 根据权利要求18所述的装置，其中，所述资源集合包括所述第一终端设备偏好的资源；以及所述确定单元在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数小于或等于门限值、所述资源集合中偏好资源的比例小于或等于门限值、所述资源集合中不偏好资源的个数大于门限值、所述资源集合中不偏好资源的比例大于门限值、所述资源集合对应的定时器超时、所述第一终端设备确 定与所述第二终端设备之间的距离大于门限值、所述第一终端设备确定来自所述第二终端设备的信号的RSRP大于门限值。
  20. 根据权利要求18所述的装置，其中，所述资源集合包括所述第一终端设备不偏好的资源；以及所述确定单元在如下至少之一的条件满足的情况下确定所述资源集合失效：所述资源集合中偏好资源的个数大于门限值、所述资源集合中偏好资源的比例大于门限值、所述资源集合中不偏好资源的个数小于或等于门限值、所述资源集合中不偏好资源的比例小于或等于门限值、所述资源集合对应的定时器超时、所述第一终端设备确定与所述第二终端设备之间的距离大于门限值、所述第一终端设备确定来自所述第二终端设备的信号的RSRP大于门限值。
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