WO2023077365A1 - 边链路资源的排除装置以及方法 - Google Patents

边链路资源的排除装置以及方法 Download PDF

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Publication number
WO2023077365A1
WO2023077365A1 PCT/CN2021/128742 CN2021128742W WO2023077365A1 WO 2023077365 A1 WO2023077365 A1 WO 2023077365A1 CN 2021128742 W CN2021128742 W CN 2021128742W WO 2023077365 A1 WO2023077365 A1 WO 2023077365A1
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Prior art keywords
information
resource
candidate resource
sensing
reservation
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PCT/CN2021/128742
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English (en)
French (fr)
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纪鹏宇
张健
李国荣
王昕�
张磊
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富士通株式会社
纪鹏宇
张健
李国荣
王昕�
张磊
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Priority to PCT/CN2021/128742 priority Critical patent/WO2023077365A1/zh
Publication of WO2023077365A1 publication Critical patent/WO2023077365A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/23—Manipulation of direct-mode connections

Definitions

  • the embodiment of the present application relates to the technical field of communications.
  • 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.).
  • Partial Sensing is considered to be a resource selection mechanism for power saving in Rel-17.
  • two sensing occasions may appear for a certain reservation period
  • how to combine the reservation information detected in the two sensing occasions to judge whether to exclude the resources in the candidate resource set needs to be solved technical issues.
  • embodiments of the present application provide an apparatus and method for excluding side link resources.
  • an apparatus for excluding side link resources which is configured on a first terminal device, and the apparatus includes:
  • a detection unit which detects side link control information in a first sensing opportunity and/or a second sensing opportunity corresponding to a reserved period for a candidate resource sensed based on the period part;
  • a processing unit which detects the first reserved information and the second reserved information in the first sensing opportunity and the second sensing opportunity respectively, according to the latest detection in the first sensing opportunity
  • the first reservation information is used to determine whether to exclude the candidate resource.
  • a method for excluding side link resources including:
  • the first terminal device detects the side link control information in a first sensing opportunity and/or a second sensing opportunity corresponding to a reserved period for a candidate resource sensed based on the periodic part;
  • Reservation information is used to determine whether to exclude the candidate resource.
  • a communication system including:
  • a terminal device which detects side link control information in a first sensing opportunity and/or a second sensing opportunity corresponding to a reserved period for a candidate resource sensed based on the period part; and in the first sensing opportunity In the case where the first reserved information and the second reserved information are respectively detected in the second sensing opportunity, determine whether to exclude The candidate resource.
  • One of the beneficial effects of the embodiments of the present application is that: when the first reserved information and the second reserved information are respectively detected in the first sensing opportunity and the second sensing opportunity, according to the The first reservation information is used to determine whether to exclude the candidate resource.
  • resource collisions can be avoided on side links, and on the basis of ensuring system reliability, excessive exclusion can be further avoided, resource usage efficiency can be increased, and additional resource collisions caused by selecting other resources can be reduced. resulting performance degradation.
  • 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 a schematic diagram of partial sensing performed by a terminal device
  • FIG. 4 is another schematic diagram of partial sensing by a terminal device
  • FIG. 5 is a schematic diagram of a terminal device performing period-based partial sensing
  • FIG. 6 is a schematic diagram of a method for excluding side link resources according to an embodiment of the present application.
  • FIG. 7 is an example diagram of detecting reserved information in a sensing opportunity according to an embodiment of the present application.
  • FIG. 8 is another example diagram of detecting reservation information in a perception opportunity according to an embodiment of the present application.
  • FIG. 9 is another example diagram of detecting reserved information in a sensing opportunity according to an embodiment of the present application.
  • FIG. 10 is another example diagram of detecting reserved information in a sensing opportunity according to an embodiment of the present application.
  • FIG. 11 is another example diagram of detecting reservation information in a perception opportunity according to an embodiment of the present application.
  • FIG. 12 is another example diagram of detecting reservation information in a perception opportunity according to an embodiment of the present application.
  • FIG. 13 is another example diagram of detecting reservation information in a sensing opportunity according to an embodiment of the present application.
  • Fig. 14 is another example diagram of detecting reserved information in the sensing opportunity according to the embodiment of the present application.
  • Fig. 15 is another example diagram of detecting reserved information in the sensing opportunity according to the embodiment of the present application.
  • FIG. 16 is a schematic diagram of an apparatus for excluding side link resources according to an embodiment of the present application.
  • FIG. 17 is a schematic diagram of a network device according to an embodiment of the present application.
  • Fig. 18 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 may estimate the resource occupancy situation in the next period of time (called the selection window) according to the resource occupancy 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 in the periodic positions that may be reserved in 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.
  • the terminal device can support the partial sensing (Partial Sensing) resource selection mechanism.
  • Fig. 3 is a schematic diagram of partial sensing performed by a terminal device. As shown in FIG. 3 , Y subframes may be selected in a corresponding selection window, and resource exclusion (resource exclusion) is performed from candidate resources in the Y subframes to select transmission resources.
  • resource exclusion resource exclusion
  • Y needs to be greater than or equal to a parameter minNumCandidateSF configured by higher layers.
  • the sensing window is related to the kth bit The subframe to which the bit corresponds needs to be monitored. In short, only the subframes in the selection window corresponding to the subframes monitored in the sensing window can be selected as the subframes in the Y subframe set.
  • partial sensing may be performed to save power. Monitoring (monitor) may be performed only in some time slots (slots), so as to obtain resource occupancy conditions in these slots.
  • the candidate time slots (slots) selected in the selection window must be the time slots that have been monitored at the corresponding time domain positions before, so that other terminal devices in the same resource pool can be excluded from periodically sending information about the selected resources. Interference, to ensure reliable performance of the system, this type of partial sensing can be defined as periodic-based partial sensing (PBPS, periodic-based partial sensing).
  • PBPS periodic-based partial sensing
  • For the sending terminal device that performs periodic partial sensing detect the Physical Sidelink Control Channel (PSCCH, Physical Sidelink Control Channel) in the monitoring time slot corresponding to the selected candidate time slot, that is, detect the corresponding first-level side link Control information (1 st stage SCI) to obtain resource occupancy of other terminal devices.
  • PSCCH Physical Sidelink Control Channel
  • Pre reserve is a set of corresponding period values (values converted into logical time slots) that need to be monitored by a candidate time slot when the terminal device performs period-based partial sensing. It may be the full set or subset of the candidate period set configured by sl-ResourceReservePeriodList.
  • the parameter sl-ResourceReservePeriodList contained in the resource pool (resource pool) configures the candidate period values of the period reservation allowed by the resource pool.
  • k is the number of periods between the candidate time slot and the corresponding monitoring time slot to be monitored. For the selection of the k value, the closer to the time n of resource selection, or the closer to the first time slot y0 among the Y candidate time slots, the more reliable the obtained perception results will be.
  • the periodic reserved SCI (wherein the indicated reserved period is Pre reserve ) monitored in , if the reference signal received power (RSRP, Reference Signal Received Power) corresponding to the SCI is greater than the threshold, the frequency domain resource indicated by the SCI is within k
  • RSRP Reference Signal Received Power
  • the corresponding k can be configured as 1 or 2 values.
  • k is configured to have a value, it represents that for a period contained in a Preserve , only the closest sensing opportunity ( most recent sensing occasion) needs to be detected; when k is configured to have two values, it represents the latest sensing opportunity before the first candidate slot and the latest sensing opportunity before the candidate slot for a period included in Pre reserve The first sensing opportunity (or last sensing occasion, ie the penultimate sensing occasion) before the opportunity needs to be detected.
  • the terminal device may detect the reservation information of resources that overlap or collide with the candidate resource in both sensing opportunities corresponding to the candidate time slot, and these resources
  • the reservation information of may come from the same terminal device or from different other devices.
  • the comparison results between the RSRP measurement results corresponding to the reserved information and the corresponding thresholds also need to be considered.
  • 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 excluding side link resources, which is described from the perspective of the first terminal device.
  • FIG. 6 is a schematic diagram of a method for excluding side link resources according to an embodiment of the present application. As shown in Figure 6, the method includes:
  • the first terminal device detects side link control information in a first sensing opportunity (sensing occasion) and/or a second sensing opportunity corresponding to a reserved period for a candidate resource sensed based on the period part;
  • first reserved information and the second reserved information are respectively detected in the first sensing opportunity and the second sensing opportunity, determine whether to Exclude candidate resources.
  • the first reservation information and the second reservation information are a reservation indication (reservation indication) for the second terminal device, or, the first reservation information and the second reservation information
  • the reservation information is a reservation indication sent to the second terminal device at the same period.
  • the first reservation information and the second reservation information indicate a reservation period, and resources indicated in the frequency domain have the same subchannel size (size) and the same lowest (lowest) subchannel index.
  • k is configured to have two values, which may be semi-static configuration per resource pool or pre-configuration.
  • this parameter instructs the UE to monitor the periodic sensing opportunity corresponding to a set, which includes the most recent sensing opportunity for a given reserved period and before the most recent sensing opportunity for a given reserved period The last perception opportunity.
  • P m the entire set is Pre reserve
  • the reservation information in the SCI can indicate this P m .
  • the first sensing opportunity is the most recent sensing occasion before the first of the candidate slots subject to processing time constraints for a given reservation period. for a given reservation periodicity before the first slot of the candidate slots subject to processing time restriction), the second perception opportunity is the last perception opportunity (the last) before the latest perception opportunity for a given reservation period sensing occasion prior to the most recent one for the given reservation periodicity).
  • the first terminal device detects reservation information with a reservation period value of P m in two corresponding sensing opportunities and they belong to the same other terminal device (the second terminal device, for example, another For the same periodic transmission of an interfering UE or the transmission of a selected sidelink grant, when performing resource exclusion based on the comparison result of RSRP and the threshold, the first terminal device performs the resource exclusion only according to the comparison result of the corresponding RSRP in the latest sensing opportunity and the corresponding threshold. judge.
  • the resource indicated by the first reserved information detected in the first sensing opportunity and the candidate resource at least partially overlap in the frequency domain, and the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reserved information If the RSRP of (DMRS) is greater than the threshold value, it is determined to exclude the candidate resource from the candidate resource set.
  • Fig. 7 is an exemplary diagram of detecting reservation information in a sensing opportunity according to an embodiment of the present application.
  • the candidate time slot y i which includes one or more candidate resources R x,y
  • the resource indicated by the first reservation information 701 (from UE 2) detected by UE 1 in the first sensing opportunity overlaps at least partly with the candidate resource 700 in the frequency domain, and the first reservation
  • the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the information 701 is greater than the threshold value Th(1,1), then UE 1 may not consider the second reserved information 702 (from UE 2) detected in the second sensing opportunity , and it is determined to exclude the candidate resource 700 from the candidate resource set.
  • the first parameter "1" in the threshold value Th(1,1) indicates the corresponding UE 2
  • the second parameter "1" indicates the first sensing opportunity
  • the threshold value Th(1,1) indicates the The RSRP threshold value corresponding to the first reservation information detected in the first sensing opportunity of UE 2.
  • the resource indicated by the first reserved information detected in the first sensing opportunity and the candidate resource at least partially overlap in the frequency domain, and the PSCCH corresponding to the first reserved information
  • the RSRP of the demodulation reference signal of /PSSCH is greater than a threshold value, and the resource indicated by the second reservation information detected in the second sensing opportunity and the candidate resource at least partially overlap in the frequency domain, and the If the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the second reservation information is less than or equal to the threshold value, determine to exclude the candidate resource from the candidate resource set.
  • the resource indicated by the first reservation information 701 (from UE 2) detected by UE 1 in the first sensing opportunity overlaps at least partly with the candidate resource 700 in the frequency domain, and the first reservation
  • the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the information 701 is greater than the threshold value Th(1,1)
  • the resource and candidate indicated by the second reserved information 702 (from UE 2) detected in the second sensing opportunity The resource 700 overlaps at least partially in the frequency domain, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the second reserved information 702 is less than or equal to the threshold value Th(1,2), then UE 1 determines that the candidate resource set The candidate resource 700 is excluded.
  • the first parameter "1" in the threshold value Th(1,2) indicates the corresponding UE 2
  • the second parameter "2" indicates the second sensing opportunity
  • the threshold value Th(1,2) indicates the UE 2 from The RSRP threshold corresponding to the second reservation information detected in the second sensing opportunity of UE 2.
  • Threshold values Th(1,1) and Th(1,2) may be the same or different.
  • the last detected RSRP result can better reflect the real-time distance between the current device and the interfering device and the impact of the interfering device, it can make the resource exclusion result of the terminal device more accurate, and improve the accuracy and accuracy of candidate resources. effectiveness.
  • the resource indicated by the first reserved information detected in the first sensing opportunity and the candidate resource at least partially overlap in the frequency domain, and the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reserved information
  • the RSRP of is less than or equal to the threshold value, it is determined not to exclude the candidate resource from the candidate resource set.
  • FIG. 8 is another example diagram of detecting reservation information in a sensing opportunity according to an embodiment of the present application.
  • the candidate time slot y i which includes one or more candidate resources R x,y
  • the resource indicated by the first reservation information 801 (from UE 2) detected by UE 1 in the first sensing opportunity overlaps at least partly with the candidate resource 800 in the frequency domain, and the first reservation
  • the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the information 801 is less than or equal to the threshold value Th(1,1), then UE 1 may not consider the second reserved information 802 detected in the second sensing opportunity (from the UE 2) Determine not to exclude the candidate resource 800 from the candidate resource set.
  • the resource indicated by the first reserved information detected in the first sensing opportunity and the candidate resource at least partially overlap in the frequency domain, and the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reserved information
  • the RSRP is less than or equal to the threshold value
  • the resources indicated by the second reserved information detected in the second sensing opportunity overlap with the candidate resources at least partially in the frequency domain and the demodulation of the PSCCH/PSSCH corresponding to the second reserved information
  • the RSRP of the reference signal is greater than the threshold, it is determined not to exclude the candidate resource from the candidate resource set.
  • the resource indicated by the first reservation information 801 (from UE 2) detected by UE 1 in the first sensing opportunity overlaps at least partly with the candidate resource 800 in the frequency domain, and the first reservation The RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the information 801 is less than or equal to the threshold value Th(1,1), and the resource indicated by the second reserved information 802 (from UE 2) detected in the second sensing opportunity It overlaps at least partially in the frequency domain with the candidate resource 800, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the second reserved information 802 is greater than the threshold value Th(1,2), then UE 1 determines not to use the candidate resource The candidate resource 800 is excluded from the set.
  • the candidate resource does not need to be removed from the candidate resource. Excluded from resource collections.
  • the candidate resource does not need to be excluded from the candidate resource set.
  • the latest detected RSRP result can better reflect the real-time distance between the current device and the interfering device and the impact of the interfering device, unnecessary resource exclusion by the terminal device can be avoided, and system performance can be further enhanced.
  • the first terminal device determines the threshold value used for RSRP comparison in the first sensing opportunity and the second sensing opportunity according to the priority indicated by the side link control information detected in the first sensing opportunity.
  • the RSRP threshold is jointly determined by the priority (priority) indicated in the current UE SCI and the priority (priority) indicated in the interfering UE SCI.
  • the priority indicated by the two transmissions belonging to the same periodic transmission of the interfering UE may be different (for example, the two transmissions in Figures 7 and 8)
  • the latest perceived The priority indicated in the SCI corresponding to the opportunity determines the corresponding threshold, and when the RSRP detection results of the two perceived opportunities are compared with the threshold, the determined threshold value is used.
  • the above schematically illustrates two sensing opportunities and resource exclusion for the same device or for the same period of transmission of the same device.
  • the following describes how to determine whether the two reserved information are for the same device or whether they are sent for the same period of the same device.
  • the first side link control information (for example, 1st stage SCI) detected by the first terminal device in the first sensing opportunity and the first side link control information detected in the second sensing opportunity (for example, 1 st stage SCI) in the case that all fields (fields) indicated by the same value are the same, it is determined that the first reservation information and the second reservation information are reservation indications for the second terminal device or for the second The reservation indication sent by the terminal device at the same period.
  • the first side link control information (for example, 1st stage SCI) detected by the first terminal device in the first sensing opportunity and the first side link control information detected in the second sensing opportunity (For example, 1st stage SCI)
  • the first reservation information and the second reservation information are reserved for the second terminal device indication or a reservation indication sent to the second terminal device at the same period.
  • the first side link control information (for example, 1st stage SCI) detected by the first terminal device in the first sensing opportunity and the first side link control information detected in the second sensing opportunity (For example, 1 st stage SCI)
  • the fields corresponding to the frequency domain resource assignment (Frequency resource assignment), time domain resource assignment (Time resource assignment), and resource reservation period (Resource reservation period) are all the same. It is determined that the first reservation information and the second reservation information are reservation indications directed at the second terminal device or reservation indications sent at the same period by the second terminal device.
  • the first terminal device also detects the second side link control information (such as 2nd stage SCI) in the first sensing opportunity and the second side link control information detected in the second sensing opportunity In the case where the source ID (source ID) and/or the destination ID (destination ID) indicated by the information (for example, 2nd stage SCI) are the same, it is determined that the first reservation information and the second reservation information are for the second terminal device The reservation indication of or the reservation indication sent at the same period for the second terminal device.
  • the second side link control information such as 2nd stage SCI
  • the first terminal device may also determine that the first reservation information and the second reservation information are reservation indications for the second terminal device or for the same periodic transmission of the second terminal device under the following circumstances
  • the second side-link control information (e.g. 2nd stage SCI) detected in the first sensing opportunity and the second side-link control information (e.g. 2nd stage SCI) detected in the second sensing opportunity have the same source ID and/or destination ID, and
  • the first side-link control information e.g. 1st stage SCI
  • the first side-link control information e.g. 1st stage SCI
  • the values corresponding to all the fields of are the same, or the values corresponding to the indicated fields except the priority are the same, or the values corresponding to the fields of frequency domain resource allocation, time domain resource allocation, and resource reservation period are all the same.
  • the UE can only judge the current two stages based on the first set of conditions. Whether the reservation information is sent for the same period of the same UE; if it is based on UE capabilities (for example, the UE transmits and receives at the same time), or the DRX of the current UE is in active time, the UE can pass through the first group and the second group at the same time The condition judges whether the two current reservation messages are for the same UE or whether they are sent for the same period of the same UE.
  • the first terminal device detects the reservation according to the detected sensing opportunity. information to determine whether to exclude candidate resources.
  • FIG. 9 is another example diagram of detecting reservation information in a sensing opportunity according to an embodiment of the present application.
  • the candidate time slot y i which includes one or more candidate resources R x,y
  • UE 1 does not perform detection in one of the two sensing opportunities (for example, the first sensing opportunity) (for example, UE 1 performs SL or UL transmission, then based on half-duplex characteristics, it cannot perform detection. detection), only according to the corresponding RSRP measurement result in the detected sensing opportunity to judge whether to exclude candidate resources.
  • the resource indicated by the second reserved information 902 detected in the second sensing opportunity overlaps at least partly with the candidate resource 900 in the frequency domain, and the demodulation reference signal of the PSCCH/PSSCH corresponding to the second reserved information 902 RSRP is greater than the threshold value Th(1,2), then UE 1 determines to exclude the candidate resource 900 from the candidate resource set.
  • the first terminal device detects in both the first sensing opportunity and the second sensing opportunity, but only detects in one of the sensing opportunities that the indicated resource at least partially overlaps with the candidate resource in the frequency domain In the case of reserved information, determine whether to exclude the candidate resource according to the detected reserved information.
  • FIG. 10 is another example diagram of detecting reservation information in a sensing opportunity according to an embodiment of the present application.
  • the candidate time slot y i which includes one or more candidate resources R x,y
  • the UE 1 judges whether to exclude candidate resources only according to the RSRP measurement result of the demodulation reference signal of the PSCCH/PSSCH corresponding to the detected reserved information 1002.
  • the resource indicated by the second reserved information 1002 detected in the second sensing opportunity overlaps at least partly with the candidate resource 1000 in the frequency domain, and the demodulation reference signal of the PSCCH/PSSCH corresponding to the second reserved information 1002 RSRP is greater than the threshold value Th(1,2), then UE 1 determines to exclude the candidate resource 1000 from the candidate resource set.
  • the first terminal device determines to exclude the candidate resource from the candidate resource set .
  • FIG. 11 is another example diagram of detecting reservation information in a sensing opportunity according to an embodiment of the present application.
  • the candidate time slot y i which includes one or more candidate resources R x,y
  • the resource indicated by the third reservation information 1101 (from UE 3) detected in the first sensing opportunity is in frequency with the candidate resource 1100. overlap at least partially in the field, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the third reservation information 1101 is less than or equal to the threshold value Th(2,1), the second reservation detected in the second sensing opportunity
  • the resource indicated by the reserved information 1102 (from UE 2) and the candidate resource 1100 overlap at least partially in the frequency domain, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the second reserved information 1102 is greater than the threshold value Th(1, 2), then UE 1 determines to exclude the candidate resource 1100 from the candidate resource set.
  • the resource indicated by the third reservation information 1101 (from UE 3) detected in the first sensing opportunity is in the same position as the candidate resource 1103.
  • the frequency domain overlaps at least partially, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the third reservation information 1101 is less than or equal to the threshold value Th(2,1), and the second detected in the second sensing opportunity
  • the resource indicated by the reservation information 1102 (from UE 2) does not at least partially overlap with the candidate resource 1103 in the frequency domain, then UE 1 determines not to exclude the candidate resource 1103 from the candidate resource set.
  • the first terminal device when the first terminal device detects a pair of reservation information sent for the same terminal device or the same period of the same terminal device in the first sensing opportunity and the second sensing opportunity,
  • the resource indicated by the reserved information detected in the first sensing opportunity closest to the candidate resource in a pair of reserved information overlaps with the candidate resource at least in part in the frequency domain and the solution of the PSCCH/PSSCH corresponding to the reserved information If the RSRP of the tuned reference signal is greater than the threshold value, it is determined that the determination result corresponding to the pair of reserved information is to exclude the candidate resource; otherwise, it is determined that the determination result corresponding to the pair of reserved information is not to exclude the candidate resource.
  • the first terminal device when the first terminal device detects multiple pairs of reserved information in the first sensing opportunity and the second sensing opportunity, if the determination result of at least one pair of reserved information among the multiple pairs of reserved information is exclusion candidate resource, the first terminal device determines to exclude the candidate resource from the set of candidate resources; candidate resources.
  • Fig. 12 is another example diagram of detecting reservation information in a sensing opportunity according to an embodiment of the present application.
  • the candidate time slot y i which includes one or more candidate resources R x,y
  • the first reserved information 1201 (from UE 2) and the third reserved information 1203 (from UE 2) are detected in the first sensing opportunity. 3)
  • the resource indicated by the first reserved information 1201 overlaps at least partially with the candidate resource 1200 in the frequency domain, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reserved information 1201 is less than or equal to the threshold value Th (1,1)
  • the resource indicated by the third reserved information 1203 overlaps at least partly with the candidate resource 1200 in the frequency domain, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the third reserved information 1203 is less than or equal to the gate Limit Th(2,1).
  • the first parameter "2" in the threshold value Th(2,1) indicates the corresponding UE 3
  • the second parameter "1" indicates the first perception opportunity
  • the threshold value Th(2,1) indicates the The RSRP threshold corresponding to the third reservation information detected in the first sensing opportunity of UE 3.
  • the second reservation information 1202 (from UE 2) and the fourth reservation information 1204 (from UE 3) are detected in the second sensing opportunity; the resources indicated by the second reservation information 1202 and the candidate resources 1200 are at least in the frequency domain partially overlap, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the second reservation information 1202 is greater than the threshold value Th(1,2), and the resources indicated by the fourth reservation information 1204 and the candidate resources 1200 are in the frequency domain At least partially overlap, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the fourth reservation information 1204 is greater than the threshold value Th(2,2).
  • the first parameter "2" in the threshold value Th(2,2) indicates the corresponding UE 3
  • the second parameter "2" indicates the second sensing opportunity
  • the threshold value Th(2,2) indicates the The RSRP threshold value corresponding to the fourth reservation information detected in the second sensing opportunity of UE 3.
  • Threshold values Th(2,1) and Th(2,2) may be the same or different.
  • both the first reserved information 1201 and the second reserved information 1202 come from UE 2, they can be regarded as a pair of reserved information.
  • the PSCCH corresponding to the first reserved information 1201 in the most recent sensing opportunity The RSRP of the demodulation reference signal of the /PSSCH is less than or equal to the threshold value Th(1,1), so the corresponding determination result is that the candidate resource 1200 is not excluded.
  • both the third reserved information 1203 and the fourth reserved information 1204 come from UE 3, they can be regarded as a pair of reserved information, and in this pair of reserved information, the PSCCH corresponding to the third reserved information 1203 in the most recent sensing opportunity
  • the RSRP of the demodulation reference signal of /PSSCH is less than or equal to the threshold value Th(2,1), so the corresponding determination result is that the candidate resource 1200 is not excluded.
  • UE1 determines not to exclude the candidate resource 1200 from the set of candidate resources.
  • Fig. 13 is another example diagram of detecting reservation information in a sensing opportunity according to an embodiment of the present application.
  • the candidate time slot y i which includes one or more candidate resources R x,y
  • the resource indicated by the first reserved information 1301 overlaps at least partially in the frequency domain with the candidate resource 1300, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reserved information 1301 is greater than the threshold value Th(1 , 1)
  • the resource indicated by the third reserved information 1303 overlaps at least partially with the candidate resource 1300 in the frequency domain, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the third reserved information 1303 is less than or equal to the threshold value Th(2,1).
  • the second reservation information 1302 (from UE 2) and the fourth reservation information 1304 (from UE 3) are detected in the second sensing opportunity; the resources indicated by the second reservation information 1302 and the candidate resources 1300 are at least in the frequency domain partially overlap, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the second reservation information 1302 is less than or equal to the threshold value Th(1,2), the resource indicated by the fourth reservation information 1304 and the candidate resource 1300 are in frequency
  • both the first reserved information 1301 and the second reserved information 1302 come from UE 2, they can be regarded as a pair of reserved information.
  • the PSCCH corresponding to the first reserved information 1301 in the most recent sensing opportunity The RSRP of the demodulation reference signal of /PSSCH is greater than the threshold value Th(1,1), so the corresponding determination result is to exclude the candidate resource 1300 .
  • both the third reserved information 1303 and the fourth reserved information 1304 come from UE 3, they can be regarded as a pair of reserved information, and in this pair of reserved information, the PSCCH corresponding to the third reserved information 1303 in the most recent sensing opportunity
  • the RSRP of the demodulation reference signal of the /PSSCH is less than or equal to the threshold value Th(2,1), so the corresponding determination result is that the candidate resource 1300 is not excluded.
  • UE1 determines to exclude the candidate resource 1300 from the candidate resource set.
  • the first terminal device when the first terminal device also detects the third reservation information for a different terminal device or for different transmissions of the same terminal device in the first sensing opportunity and/or the second sensing opportunity, if the second The resource indicated by the three reservation information and the candidate resource at least partially overlap in the frequency domain and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the third reservation information is greater than the threshold value, and/or, at least one pair of reservation information If the result of the determination is to exclude the candidate resource, the first terminal device determines to exclude the candidate resource from the candidate resource set, otherwise the first terminal device determines not to exclude the candidate resource from the candidate resource set.
  • Fig. 14 is another example diagram of detecting reservation information in a sensing opportunity according to an embodiment of the present application.
  • the candidate time slot y i including one or more candidate resources R x,y
  • the first reserved information 1401 (from UE 2) and the third reserved information 1403 (from UE 2) are detected in the first sensing opportunity.
  • the resource indicated by the first reservation information 1401 overlaps at least partially with the candidate resource 1400 in the frequency domain, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reservation information 1401 is less than or equal to the threshold value Th (1,1); the resource indicated by the third reservation information 1403 overlaps at least part of the candidate resource 1400 in the frequency domain, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the third reservation information 1403 is greater than the threshold Th(2,1).
  • the resource indicated by the second reservation information 1402 (from UE 2) detected by UE 1 in the second sensing opportunity overlaps at least partially with the candidate resource 1400 in the frequency domain, and the second reservation information 1402
  • the RSRP of the demodulation reference signal of the corresponding PSCCH/PSSCH is greater than the threshold value Th(1,2).
  • Both the first reserved information 1401 and the second reserved information 1402 come from UE 2, and can be regarded as a pair of reserved resources.
  • the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reservation information 1401 in the latest sensing opportunity is less than or equal to the threshold value Th(1,1), so the decision result of the pair of reserved resources is not to exclude The candidate resource 1400; and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the third reserved information 1403 is greater than the threshold Th(2,1), the candidate resource 1400 needs to be excluded. Therefore UE1 determines to exclude the candidate resource 1400 from the set of candidate resources.
  • FIG. 15 is another example diagram of detecting reservation information in a sensing opportunity according to an embodiment of the present application.
  • the candidate time slot y i which includes one or more candidate resources R x,y
  • the first reserved information 1501 (from UE 2) and the third reserved information 1503 (from UE 2) are detected in the first sensing opportunity 3)
  • the resource indicated by the first reservation information 1501 overlaps at least part of the candidate resource 1500 in the frequency domain, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reservation information 1501 is less than or equal to the threshold value Th (1,1);
  • the resource indicated by the third reserved information 1503 overlaps at least partially with the candidate resource 1500 in the frequency domain, and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the third reserved information 1503 is less than or equal to the gate Limit Th(2,1).
  • the resource indicated by the second reservation information 1502 (from UE 2) detected by UE 1 in the second sensing opportunity overlaps at least partially with the candidate resource 1500 in the frequency domain, and the second reservation information 1502
  • the RSRP of the demodulation reference signal of the corresponding PSCCH/PSSCH is greater than the threshold value Th(1,2).
  • Both the first reserved information 1501 and the second reserved information 1502 come from UE 2, which can be regarded as a pair of reserved resources.
  • the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reservation information 1501 in the latest sensing opportunity is less than or equal to the threshold value Th(1,1), so the decision result of the pair of reserved resources is not to exclude The candidate resource 1500; and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the third reserved information 1503 is less than or equal to the threshold value Th(2,1), and the candidate resource 1500 may not be excluded. Therefore UE1 determines not to exclude the candidate resource 1500 from the set of candidate resources.
  • Figure 14 and Figure 15 above have described a pair of reserved information as an example, but the present application is not limited thereto, for the case of more than one pair of reserved information, it can be handled similarly with reference to Figure 12 and Figure 13, that is, the The embodiments of Figures 12 to 15 are combined.
  • An embodiment of the present application provides an apparatus for excluding side link resources.
  • the apparatus may be, for example, a terminal device (a first terminal device), or may be one or some components or components configured in the terminal device, and details that are the same as those in the embodiment of the first aspect will not be repeated here.
  • FIG. 16 is a schematic diagram of an apparatus for excluding side link resources according to an embodiment of the present application.
  • the device 1600 for indicating side link cooperation information includes:
  • a detection unit 1601 which detects side link control information in a first sensing opportunity and/or a second sensing opportunity corresponding to a reserved period for a candidate resource sensed based on period part;
  • the processing unit 1602 if the first reserved information and the second reserved information are respectively detected in the first sensing opportunity and the second sensing opportunity, according to the latest detection in the first sensing opportunity
  • the first reservation information is used to determine whether to exclude the candidate resource.
  • the first reservation information and the second reservation information are reservation instructions for the second terminal device, or are reservation instructions sent at the same period for the second terminal device.
  • the first reservation information and the second reservation information indicate the reservation period, and resources indicated in the frequency domain have the same subchannel size and the same lowest subchannel index.
  • the first sensing opportunity is the closest sensing opportunity before the first slot among the candidate slots limited by processing time for a given reservation period
  • the second sensing opportunity is the last sensing opportunity before the latest sensing opportunity for a given reserved period
  • the resource indicated by the first reservation information detected in the first sensing opportunity and the candidate resource at least partially overlap in the frequency domain, and the first reservation information corresponds to
  • the processing unit 1602 determines to exclude the candidate resource from the candidate resource set.
  • the resource indicated by the first reserved information detected in the first sensing opportunity and the candidate resource at least partially overlap in the frequency domain, and the PSCCH corresponding to the first reserved information
  • the RSRP of the demodulation reference signal of /PSSCH is greater than a threshold value, and the resource indicated by the second reservation information detected in the second sensing opportunity and the candidate resource at least partially overlap in the frequency domain, and the If the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the second reservation information is less than or equal to the threshold value, the processing unit 1602 determines to exclude the candidate resource from the candidate resource set.
  • the resource indicated by the first reservation information detected in the first sensing opportunity and the candidate resource at least partially overlap in the frequency domain, and the first reservation information corresponds to
  • the processing unit 1602 determines not to exclude the candidate resource from the candidate resource set.
  • the resource indicated by the first reserved information detected in the first sensing opportunity and the candidate resource at least partially overlap in the frequency domain, and the PSCCH corresponding to the first reserved information
  • the RSRP of the demodulation reference signal of /PSSCH is less than or equal to a threshold value
  • the resource indicated by the second reserved information detected in the second sensing opportunity overlaps at least partially in the frequency domain with the candidate resource
  • the processing unit 1602 determines not to exclude the candidate resource from the candidate resource set.
  • the processing unit 1602 is further configured to: determine the first sensing opportunity and the second sensing opportunity according to the priority indicated by the side link control information detected in the first sensing opportunity Threshold value for RSRP comparison.
  • the first side link control information detected in the first sensing opportunity corresponds to all domains indicated by the first side link control information detected in the second sensing opportunity
  • the values are all the same, or the values corresponding to the indicated fields except the priority are all the same, or the values corresponding to the fields of frequency domain resource allocation, time domain resource allocation, and resource reservation period are all the same
  • the processing unit 1602 It is determined that the first reservation information and the second reservation information are reservation indications directed at the second terminal device or reservation indications sent at the same period for the second terminal device.
  • the processing unit 1602 determines that the first reservation information and the second reservation information are a reservation indication for the second terminal device or sent at the same cycle for the second terminal device Reserve instructions.
  • the second side-link control information detected in the first sensing opportunity and the source identifier and/or source identifier indicated by the second side-link control information detected in the second sensing opportunity or the destination identifiers are the same, and the first side-link control information detected in the first sensing opportunity corresponds to all fields indicated by the first side-link control information detected in the second sensing opportunity If the values are the same, or the values corresponding to the indicated fields except priority are the same, or the values corresponding to the fields of frequency domain resource allocation, time domain resource allocation, and resource reservation period are all the same, the processing unit 1602 Determine that the first reservation information and the second reservation information are reservation indications directed at the second terminal device or reservation indications sent at the same period for the second terminal device.
  • the processing unit 1602 detects to determine whether to exclude the candidate resource.
  • the processing unit 1602 detects that the resource indicated by the reserved information and the candidate resource at least partially overlap in the frequency domain, and the demodulation reference signal of the PSCCH/PSSCH corresponding to the reserved information When the RSRP of is greater than the threshold value, it is determined to exclude the candidate resource from the candidate resource set.
  • the processing unit 1602 detects in both the first sensing opportunity and the second sensing opportunity, but only detects in one of the sensing opportunities that the indicated resource is different from the In the case of at least partially overlapping reservation information of candidate resources, it is determined whether to exclude the candidate resources according to the detected reservation information.
  • the processing unit 1602 detects that the resource indicated by the reserved information and the candidate resource at least partially overlap in the frequency domain, and the demodulation reference signal of the PSCCH/PSSCH corresponding to the reserved information When the RSRP of is greater than the threshold value, it is determined to exclude the candidate resource from the candidate resource set.
  • reservation information of different terminal devices or reservation information sent by the same terminal device for different transmissions are respectively detected in the first sensing opportunity and the second sensing opportunity,
  • the processing unit 1602 determines from The candidate resource is excluded from the candidate resource set.
  • the processing unit 1602 determines that the determination result corresponding to the pair of reserved information is to exclude the candidate resource, otherwise it determines that the pair of reserved information corresponds to The determination result of is that the candidate resource is not excluded.
  • the first terminal device determines to exclude the candidate resource from the candidate resource set; if the determination results of the multiple pairs of reserved information all do not exclude the candidate resource, the processing unit 1602 It is determined not to exclude the candidate resource from the set of candidate resources.
  • the first sensing opportunity and/or the second sensing opportunity also detects third reservation information for different transmissions of a different terminal device or for the same terminal device
  • the processing unit 1602 determines to exclude the candidate resource from the candidate resource set, or determines not to exclude the candidate resource from the candidate resource set.
  • the device 1600 for excluding side link resources may also include other components or modules, and for the specific content of these components or modules, please refer 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 embodiment of the present application also provides a communication system, which can be referred to FIG. 1 , and the same contents as those in the first and second embodiments are not repeated here.
  • the communication system 100 may at least include:
  • a terminal device which detects side link control information in a first sensing opportunity and/or a second sensing opportunity corresponding to a reserved period for a candidate resource sensed based on the period part; and in the first sensing opportunity In the case where the first reserved information and the second reserved information are respectively detected in the second sensing opportunity, determine whether to exclude The candidate resource.
  • 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. 17 is a schematic diagram of a network device according to an embodiment of the present application.
  • a network device 1700 may include: a processor 1710 (such as a central processing unit CPU) and a memory 1720 ; the memory 1720 is coupled to the processor 1710 .
  • the memory 1720 can store various data; in addition, it also stores a program 1730 for information processing, and executes the program 1730 under the control of the processor 1710 .
  • the network device 1700 may further include: a transceiver 1740 and an antenna 1750 ; wherein, 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 1700 does not necessarily include all the components shown in FIG. 17 ; in addition, the network device 1700 may also include components not shown in FIG. 17 , 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. 18 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 1800 may include a processor 1810 and a memory 1820 ; the memory 1820 stores data and programs, and is coupled to the processor 1810 .
  • 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 1810 may be configured to execute a program to implement the side link resource exclusion method described in the embodiment of the first aspect.
  • the processor 1810 may be configured to perform the following control: perform side link in the first sensing occasion (sensing occasion) and/or the second sensing occasion corresponding to a reserved period for a candidate resource sensed based on the period part The detection of control information; in the case that the first reserved information and the second reserved information are respectively detected in the first sensing opportunity and the second sensing opportunity, according to the latest detection in the first sensing opportunity
  • the first reservation information is used to determine whether to exclude the candidate resource.
  • the terminal device 1800 may further include: a communication module 1830 , an input unit 1840 , a display 1850 , and a power supply 1860 .
  • a communication module 1830 the terminal device 1800 may further include: a communication module 1830 , an input unit 1840 , a display 1850 , and a power supply 1860 .
  • 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 1800 does not necessarily include all the components shown in FIG. have technology.
  • An embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the side link resource exclusion method described in the embodiment of the first aspect.
  • An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the side link resource exclusion method described in the embodiment of the first aspect.
  • 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 may be coupled to the processor such that the processor can read information from, and write information to, the storage medium, or it may 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 excluding side link resources including:
  • the first terminal device detects side link control information in a first sensing opportunity (sensing occasion) and/or a second sensing opportunity corresponding to a reserved period for a candidate resource sensed based on the period part;
  • Reservation information is used to determine whether to exclude the candidate resource.
  • Supplement 2 The method according to Supplement 1, wherein the first reservation information and the second reservation information are reservation indications for the second terminal device, or are reservation indications for the second terminal device Reservation indication sent in the same cycle.
  • Supplement 3 The method according to Supplement 1, wherein the first reservation information and the second reservation information indicate the reservation period, and resources indicated in the frequency domain have the same subchannel size and the same lowest subchannel index.
  • Supplementary Note 4 The method according to any one of Supplementary Notes 1 to 3, wherein the first sensing opportunity is the first time in the candidate time slots limited by processing time for a given reservation period
  • the second sensing opportunity is the last sensing opportunity before the latest sensing opportunity for a given reservation period.
  • Supplement 5 The method according to any one of Supplements 1 to 4, wherein the resources indicated by the first reservation information detected in the first sensing opportunity and the candidate resources are in the frequency domain In a case where there is at least partial overlap and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reservation information is greater than a threshold value, determine to exclude the candidate resource from the candidate resource set.
  • Supplementary Note 6 The method according to any one of Supplementary Notes 1 to 4, wherein the resources indicated by the first reservation information detected in the first sensing opportunity and the candidate resources are in the frequency domain at least partially overlapping and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reservation information is greater than a threshold value, and the resources indicated by the second reservation information detected in the second sensing opportunity determining to exclude the candidate resource from the candidate resource set in a case where it at least partially overlaps with the candidate resource in the frequency domain and the RSRP of the demodulation reference signal indicated by the second reservation information is less than or equal to a threshold value.
  • Supplement 7 The method according to any one of Supplements 1 to 4, wherein the resource indicated by the first reservation information detected in the first sensing opportunity is in the frequency domain with the candidate resource At least partially overlapping, and in a case where the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reservation information is less than or equal to a threshold value, it is determined not to exclude the candidate resource from the candidate resource set.
  • Supplementary Note 8 The method according to any one of Supplementary Notes 1 to 4, wherein the resources indicated by the first reservation information detected in the first sensing opportunity and the candidate resources are in the frequency domain at least partially overlapping and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the first reservation information is less than or equal to a threshold value, and the second reservation information detected in the second sensing opportunity indicates In the case where the resource and the candidate resource at least partially overlap in the frequency domain and the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the second reserved information is greater than the threshold value, it is determined not to be excluded from the candidate resource set The candidate resource.
  • Supplementary Note 9 The method according to any one of Supplementary Notes 1 to 8, wherein the method further comprises:
  • the first terminal device determines the threshold for RSRP comparison in the first sensing opportunity and the second sensing opportunity according to the priority indicated by the side link control information detected in the first sensing opportunity value.
  • Supplement 10 The method according to any one of Supplements 1 to 9, wherein the method further comprises:
  • All fields corresponding to the first side link control information detected by the first terminal device in the first sensing opportunity and the first side link control information detected in the second sensing opportunity The values are all the same, or the values corresponding to the indicated fields except the priority are all the same, or the values corresponding to the fields of frequency domain resource allocation, time domain resource allocation, and resource reservation period are all the same, determine the
  • the first reservation information and the second reservation information are reservation indications for the second terminal device or reservation indications sent in the same cycle for the second terminal device.
  • Supplement 11 The method according to any one of Supplements 1 to 9, wherein the method further comprises:
  • the first terminal device further detects the second side link control information detected in the first sensing opportunity and the source identifier indicated by the second side link control information detected in the second sensing opportunity and /or when the purpose identifiers are the same, determining that the first reservation information and the second reservation information are reservation indications for the second terminal device or the same period for the second terminal device The reservation indication sent.
  • Supplement 12 The method according to any one of Supplements 1 to 9, wherein the method further comprises:
  • the second side link control information detected by the first terminal device in the first sensing opportunity and the source identifier indicated by the second side link control information detected in the second sensing opportunity and/or or the destination identifiers are the same, and the first side-link control information detected in the first sensing opportunity corresponds to all fields indicated by the first side-link control information detected in the second sensing opportunity values are all the same, or the values corresponding to the indicated fields except the priority are all the same, or the values corresponding to the fields of frequency domain resource allocation, time domain resource allocation, and resource reservation period are all the same, determine the The first reservation information and the second reservation information are reservation indications for the second terminal device or reservation indications for the second terminal device sent in the same cycle.
  • Supplement 13 The method according to any one of Supplements 1 to 12, wherein the method further comprises:
  • the first terminal device In the case that one of the first sensing opportunity and the second sensing opportunity is detected but the other one is not detected, the first terminal device, according to the reservation detected in the detected sensing opportunity, information to determine whether to exclude the candidate resource.
  • Supplementary Note 14 The method according to Supplementary Note 13, wherein the detected resources indicated by the reserved information and the candidate resources at least partially overlap in the frequency domain, and the PSCCH/ If the RSRP of the demodulation reference signal of the PSSCH is greater than the threshold value, it is determined to exclude the candidate resource from the candidate resource set.
  • Supplement 15 The method according to any one of Supplements 1 to 12, wherein the method further comprises:
  • the first terminal device detects in both the first sensing opportunity and the second sensing opportunity, but only detects in one of the sensing opportunities that the indicated resource is at least the same as the candidate resource in the frequency domain In the case of partially overlapping reservation information, it is determined whether to exclude the candidate resource according to the detected reservation information.
  • Supplement 16 The method according to Supplement 15, wherein the detected resources indicated by the reserved information and the candidate resources at least partially overlap in the frequency domain, and the PSCCH/ If the RSRP of the demodulation reference signal of the PSSCH is greater than the threshold value, it is determined to exclude the candidate resource from the candidate resource set.
  • Supplement 17 The method according to any one of Supplements 1 to 12, wherein the method further comprises:
  • the first terminal determines to exclude the candidate resource from the set of candidate resources.
  • Supplement 18 The method according to any one of Supplements 1 to 12, wherein the method further comprises:
  • the first terminal device detects a pair of reservation information sent for the same terminal device or the same period of the same terminal device in the first sensing opportunity and the second sensing opportunity
  • the resource indicated by the reservation information detected in the first sensing opportunity closest to the candidate resource in the pair of reservation information overlaps at least part of the candidate resource in the frequency domain and the reserved
  • the RSRP of the demodulation reference signal of the PSCCH/PSSCH corresponding to the information is greater than the threshold value, determine that the judgment result corresponding to the pair of reserved information is to exclude the candidate resource, otherwise determine the judgment result corresponding to the pair of reserved information In order not to exclude the candidate resource.
  • the first terminal device detects multiple pairs of reserved information in the first sensing opportunity and the second sensing opportunity
  • the first terminal device determines to exclude the candidate resource from the candidate resource set; if the multiple pairs of reservation information If all the determination results of the remaining information do not exclude the candidate resource, the first terminal device determines not to exclude the candidate resource from the candidate resource set.
  • Supplement 20 The method according to Supplement 18 or 19, wherein the method further comprises:
  • the first terminal device also detects third reservation information sent differently for a different terminal device or for the same terminal device in the first sensing opportunity and/or the second sensing opportunity,
  • the first terminal device determines to exclude the candidate resource from the candidate resource set, otherwise the first terminal device determines not to exclude the candidate resource from the candidate resource set Exclude the candidate resource in .
  • 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 20. How to exclude link resources.

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Abstract

本申请实施例提供一种边链路资源的排除装置以及方法。该方法包括：在基于周期部分感知的一个候选资源针对一个预留周期所对应的第一感知机会和/或第二感知机会中进行边链路控制信息的检测(601)；在第一感知机会和第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的第一感知机会中检测到的第一预留信息来确定是否排除所述候选资源(602)。

Description

边链路资源的排除装置以及方法 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)。
Rel-17的边链路增强课题中，一个重要目标是对某些终端设备(例如手持用户设备(P-UE))节省电量。部分感知(Partial Sensing)作为有效的省电机制，被认为是Rel-17中为了省电而进行的一个资源选择机制。
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：针对某一预留周期可能出现两个感知机会(sensing occasion)，如何综合两个感知机会中检测到的预留信息来判断是否排除候选资源集合中的资源，是需要解决的技术问题。
针对上述问题的至少之一，本申请实施例提供一种边链路资源的排除装置以及方法。
根据本申请实施例的一个方面，提供一种边链路资源的排除装置，配置于第一终端设备，所述装置包括：
检测单元，其在基于周期部分感知的一个候选资源针对一个预留周期所对应的第一感知机会和/或第二感知机会中进行边链路控制信息的检测；
处理单元，其在所述第一感知机会和所述第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的所述第一感知机会中检测到的所述第一预留信息来确定是否排除所述候选资源。
根据本申请实施例的另一个方面，提供一种边链路资源的排除方法，包括：
第一终端设备在基于周期部分感知的一个候选资源针对一个预留周期所对应的第一感知机会和/或第二感知机会中进行边链路控制信息的检测；
在所述第一感知机会和所述第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的所述第一感知机会中检测到的所述第一预留信息来确定是否排除所述候选资源。
根据本申请实施例的另一个方面，提供一种通信系统，包括：
终端设备，其在基于周期部分感知的一个候选资源针对一个预留周期所对应的第一感知机会和/或第二感知机会中进行边链路控制信息的检测；以及在所述第一感知机会和所述第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的所述第一感知机会中检测到的所述第一预留信息来确定是否排除所述候选资源。
本申请实施例的有益效果之一在于：在第一感知机会和第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的第一感知机会中检测到的第一预留信息来确定是否排除所述候选资源。由此，能够在边链路上避免发生资源碰撞，保证系统可靠性的基础上，进一步避免产生过度排除的情况，能够增大资源的使用效率，并减少由于选择了其它资源造成额外的资源碰撞产生的性能下降。
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是终端设备进行部分感知的一示意图；
图4是终端设备进行部分感知的另一示意图；
图5是终端设备进行基于周期部分感知的一示意图；
图6是本申请实施例的边链路资源的排除方法的一示意图；
图7是本申请实施例的在感知机会中检测预留信息的一示例图；
图8是本申请实施例的在感知机会中检测预留信息的另一示例图；
图9是本申请实施例的在感知机会中检测预留信息的另一示例图；
图10是本申请实施例的在感知机会中检测预留信息的另一示例图；
图11是本申请实施例的在感知机会中检测预留信息的另一示例图；
图12是本申请实施例的在感知机会中检测预留信息的另一示例图；
图13是本申请实施例的在感知机会中检测预留信息的另一示例图；
图14是本申请实施例的在感知机会中检测预留信息的另一示例图；
图15是本申请实施例的在感知机会中检测预留信息的另一示例图；
图16是本申请实施例的边链路资源的排除装置的一示意图；
图17是本申请实施例的网络设备的一示意图；
图18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 PCTCN2021128742-appb-000001
检测到SCI，从对应的SCI format1-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 PCTCN2021128742-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 38.213 V16.7.0中第8.1.4等处的内容。
在NR边链路通信中，终端设备可以支持部分感知(Partial Sensing)的资源选择机制。
图3是终端设备进行部分感知的一示意图。如图3所示，可以在对应的选择窗中选择Y个子帧，从这Y个子帧中的候选资源中进行资源排除(resource exclusion)，以选择发送资源。
例如，Y需要大于或等于高层配置的一个参数minNumCandidateSF。对应的，如果 在高层配置的位图(bitmap)gapCandidateSensing中第k个比特被配置为1，对于被包含在所选择的Y个子帧的集合中的一个子帧，感知窗中与该第k个比特对应的子帧需要被监测。简单来说，在感知窗中进行了监测的部分子帧，其对应的选择窗中的子帧才可以被选择为Y个子帧集合中的子帧。
如果一个终端设备是发送设备，则可以进行部分感知来进行省电。可以只在部分时隙(slot)进行监测(monitor)，以获得这些slot内的资源占用情况。此外，可以限制在选择窗内选择的候选时隙(slot)必须是在之前对应时域位置进行了监测的时隙，由此能够排除相同资源池内其它终端设备进行周期性发送对所选择资源的干扰，保证系统可靠性能，这种类型的部分感知可以定义为基于周期部分感知(PBPS，periodic-based partial sensing)。
对于执行基于周期部分感知的发送终端设备，在所选择的候选时隙对应的监测时隙内检测物理边链路控制信道(PSCCH，Physical Sidelink Control Channel)，即检测对应的第一级边链路控制信息(1 st stage SCI)，以获得其它终端设备的资源占用情况。
例如，假如一个时隙
Figure PCTCN2021128742-appb-000003
被选择且包括在候选时隙(Y个时隙)中，则终端设备需要监测对应的时隙
Figure PCTCN2021128742-appb-000004
k和P reserve的定义可以参考相关技术。P reserve是终端设备执行基于周期部分感知时一个候选时隙需要监测的对应周期值(转化为逻辑时隙后的值)的集合，可能是sl-ResourceReservePeriodList配置的候选周期集合的全集或者子集，资源池(resource pool)中包含的参数sl-ResourceReservePeriodList配置了该资源池允许的周期预留的候选周期值。k是候选时隙与对应的需要监测的监测时隙之间间隔的周期个数。对于k值的选取，离资源选择发生的时间n越近，或者离Y个候选时隙中的首个时隙y0越近，获得的感知结果越可靠。
对于
Figure PCTCN2021128742-appb-000005
中监测到的周期预留SCI(其中指示的预留周期为P reserve)，如果该SCI对应的参考信号接收功率(RSRP，Reference Signal Received Power)大于门限，该SCI指示的频域资源在k个P reserve周期后的时隙内对应资源R，则与该资源R在当前发送周期或者后续发送周期重叠(overlap)的候选资源需要在对应的时隙
Figure PCTCN2021128742-appb-000006
内被排除。
图4是终端设备进行部分感知的另一示意图。如图4所示，假设P reserve＝{P 1,P 2,P 3}。对于每个候选时隙，分别针对每个P reserve，终端设备可以确定对应的一个或多个k的值，对于图示中的各个周期值，k均被确定为1，从而获得对于该候选时隙需要监测的对应 时隙(感知机会)。
在最近的RAN1会议中，对于P reserve中包含的每个周期，同意了可以配置对应的k为1个或者2个值。当k被配置为具有一个值时，其代表对于一个P reserve中包含的周期，只有在首个候选时隙(受时间限制的候选时隙中的第一个时隙)之前最近的感知机会(most recent sensing occasion)需要被检测；当k被配置为具有两个值时，其代表对于一个P reserve中包含的周期，在首个候选时隙之前最近的感知机会以及候选时隙之前最近的感知机会之前的第一个感知机会(或称为last sensing occasion，即倒数第二个sensing occasion)都需要被检测。
图5是终端设备进行基于周期部分感知的一示意图。如图5所示，对于某个预留周期P1，其对应的k为2个值。例如如图5所示，k＝1和k＝2，但本申请不限于此。由此某一候选资源针对某一预留周期，可以对应两个感知机会。
但是，当k被配置为具有两个值时，如何进行资源排除，目前标准中尚未明确规定。具体的，对于一个候选时隙中的一个候选资源，终端设备可能在该候选时隙对应的两个感知机会中都检测到与该候选资源有重叠或碰撞的资源的预留信息，且这些资源的预留信息可能来自于相同终端设备或者来自不同的其它设备。同时，这些预留信息对应的RSRP测量结果与对应门限的比较结果也需要考虑。
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资源的排除方法，从第一终端设备进行说明。
图6是本申请实施例的边链路资源的排除方法的示意图。如图6所示，该方法包括：
601，第一终端设备在基于周期部分感知的一个候选资源针对一个预留周期所对应 的第一感知机会(sensing occasion)和/或第二感知机会中进行边链路控制信息的检测；
602，在第一感知机会和第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的第一感知机会中检测到的第一预留信息来确定是否排除候选资源。
值得注意的是，以上附图6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6的记载。
在一些实施例中，所述第一预留信息和所述第二预留信息为针对第二终端设备的预留指示(reservation indication)，或者，所述第一预留信息和所述第二预留信息为针对第二终端设备的同一次周期发送的预留指示。
在一些实施例中，第一预留信息和第二预留信息指示预留周期，并且在频域上指示的资源具有相同的子信道大小(size)以及相同的最低(lowest)子信道索引。
例如，k被配置为具有两个值，可以是每资源池(per resource pool)的半静态配置或者也可以是预配置。例如配置additionalPeriodicSensingOccasion，该参数指示UE监测对应于一个集合的周期感知机会，该集合包括对于给定的预留周期最近(most recent)的感知机会和对于给定的预留周期在最近的感知机会之前最后(last)的感知机会。对于Y个候选时隙中的每个时隙
Figure PCTCN2021128742-appb-000007
包含在P reserve中的需要监测的一个周期值为P m(整个集合为P reserve)，SCI中的预留信息可以指示该P m。
在一些实施例中，第一感知机会为对于给定的预留周期在受处理时间限制的候选时隙中的第一个时隙之前最近(most recent)的一个感知机会(the most recent sensing occasion for a given reservation periodicity before the first slot of the candidate slots subject to processing time restriction)，第二感知机会为对于给定的预留周期在最近的感知机会之前最后(last)的一个感知机会(the last periodic sensing occasion prior to the most recent one for the given reservation periodicity)。
在本申请实施例中，第一终端设备如果在两个对应的感知机会中均检测到预留周期值为P m的预留信息且它们属于相同的其它终端设备(第二终端设备，例如另一个干扰UE)的同一次周期发送或者selected sidelink grant的发送，在根据RSRP与门限的比较结果进行资源排除时，第一终端设备只依据最近的感知机会中对应的RSRP与对应门限的比较结果进行判断。
在一些实施例中，在第一感知机会中检测到的第一预留信息指示的资源与候选资源在频域上至少部分重叠，并且第一预留信息所对应PSCCH/PSSCH的解调参考信号(DMRS)的RSRP大于门限值的情况下，确定从候选资源集合中排除所述候选资源。
图7是本申请实施例的在感知机会中检测预留信息的一示例图。如图7所示，例如对应于候选时隙y i(其中包括一个或多个候选资源R x,y)，针对预留周期Pm的两个k值具有两个感知机会，即第一感知机会和第二感知机会。
例如，如图7所示，UE 1在第一感知机会中检测到的第一预留信息701(来自UE 2)指示的资源与候选资源700在频域上至少部分重叠，并且第一预留信息701所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(1,1)，则UE 1可以不考虑第二感知机会中检测到的第二预留信息702(来自UE 2)，而确定从候选资源集合中排除所述候选资源700。
其中，门限值Th(1,1)中的第一个参数“1”表示对应UE 2，第二个参数“1”表示第一感知机会，因此门限值Th(1,1)表示来自UE 2的在第一感知机会中检测到的第一预留信息所对应的RSRP门限值。
在一些实施例中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第一预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值，以及在所述第二感知机会中检测到的所述第二预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第二预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值的情况下，确定从候选资源集合中排除所述候选资源。
例如，如图7所示，UE 1在第一感知机会中检测到的第一预留信息701(来自UE 2)指示的资源与候选资源700在频域上至少部分重叠，并且第一预留信息701所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(1,1)，在第二感知机会中检测到的第二预留信息702(来自UE 2)指示的资源与候选资源700在频域上至少部分重叠，并且第二预留信息702所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(1,2)，则UE 1确定从候选资源集合中排除所述候选资源700。
其中，门限值Th(1,2)中的第一个参数“1”表示对应UE 2，第二个参数“2”表示第二感知机会，因此门限值Th(1,2)表示来自UE 2的在第二感知机会中检测到的第二预留信息所对应的RSRP门限值。门限值Th(1,1)和Th(1,2)可能相同，也可能不同。
也就是说，如图7所示，对于一个候选时隙中的候选资源R x,y，其对应的两个感知机会中，如果最近的感知机会对应的测量RSRP结果大于门限，则无论最近的感知机会之前的第一个感知机会对应的测量RSRP结果是否大于门限，都将该候选资源从候选资源集合中排除。此外，即使最近的感知机会之前的第一个感知机会对应的测量RSRP结果小于或等于门限，也需要将该候选资源从候选资源集合中排除。
由此，由于最近一次检测到的RSRP结果更能代表反映了当前设备和干扰设备的实时距离以及干扰设备带来的影响，可以使得终端设备排除资源的结果更加准确，提高候选资源的准确性和有效性。
在一些实施例中，在第一感知机会中检测到的第一预留信息指示的资源与候选资源在频域上至少部分重叠，并且第一预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值的情况下，确定不从候选资源集合中排除所述候选资源。
图8是本申请实施例的在感知机会中检测预留信息的另一示例图。如图8所示，例如对应于候选时隙y i(其中包括一个或多个候选资源R x,y)，针对预留周期Pm的两个k值具有两个感知机会，即第一感知机会和第二感知机会。
例如，如图8所示，UE 1在第一感知机会中检测到的第一预留信息801(来自UE 2)指示的资源与候选资源800在频域上至少部分重叠，并且第一预留信息801所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(1,1)，则UE 1可以不考虑第二感知机会中检测到的第二预留信息802(来自UE 2)，确定不从候选资源集合中排除所述候选资源800。
在一些实施例中，在第一感知机会中检测到的第一预留信息指示的资源与候选资源在频域上至少部分重叠并且第一预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值，以及在第二感知机会中检测到的第二预留信息指示的资源与候选资源在频域上至少部分重叠并且第二预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值的情况下，确定不从候选资源集合中排除所述候选资源。
例如，如图8所示，UE 1在第一感知机会中检测到的第一预留信息801(来自UE 2)指示的资源与候选资源800在频域上至少部分重叠，并且第一预留信息801所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(1,1)，在第二感知机会中检测到的第二预留信息802(来自UE 2)指示的资源与候选资源800在频域上至少部分重叠，并且第二预留信息802所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(1,2)，则UE 1确定不从候选资源集合中排除所述候选资源800。
也就是说，如果最近的感知机会对应的测量RSRP结果小于或等于门限，则无论最近的感知机会之前的第一个感知机会对应的测量RSRP结果是否大于门限，都不需要将该候选资源从候选资源集合中排除。此外，即使最近的感知机会之前的第一个感知机会对应的测量RSRP结果大于门限，也不需要将该候选资源从候选资源集合中排除。
由此，由于最近一次检测到的RSRP结果更能代表反映了当前设备和干扰设备的实时距离以及干扰设备带来的影响，可以避免终端设备进行不必要的资源排除，进一步增强系统性能。
在一些实施例中，第一终端设备按照第一感知机会中检测到的边链路控制信息所指示的优先级，确定第一感知机会和第二感知机会中用于RSRP比较的门限值。
例如，目前对于RSRP门限，由当前UE SCI中指示的优先级(priority)和干扰UE SCI中指示的优先级(priority)共同确定。而在本申请实施例中，由于干扰UE的两次属于同一次周期发送的发送所指示的优先级(priority)可能不同(例如图7、8中的两次发送)，因此可以按照最近的感知机会对应的SCI中指示的优先级确定对应的门限，在两个感知机会的RSRP检测结果与门限比较时，都使用这个确定的门限值。
由此，由于最近检测到的SCI指示的优先级更为准确，可以进一步增强系统性能。
以上示意性说明了针对相同设备或针对相同设备的同一次周期发送的两个感知机会以及资源排除，以下说明如何判断两个预留信息是否针对相同设备或是否针对相同设备的同一次周期发送。
在一些实施例中，第一终端设备在第一感知机会中检测到的第一边链路控制信息(例如1 st stage SCI)和在第二感知机会中检测到的第一边链路控制信息(例如1 st stage SCI)所指示的所有域(field)对应的值均相同的情况下，确定第一预留信息和第二预留信息是针对第二终端设备的预留指示或者针对第二终端设备的同一次周期发送的预留指示。
在一些实施例中，第一终端设备在第一感知机会中检测到的第一边链路控制信息(例如1 st stage SCI)和在第二感知机会中检测到的第一边链路控制信息(例如1 st stage SCI)所指示的除优先级(priority)外的其他域对应的值均相同的情况下，确定第一预留信息和第二预留信息是针对第二终端设备的预留指示或者针对第二终端设备的同一次周期发送的预留指示。
在一些实施例中，第一终端设备在第一感知机会中检测到的第一边链路控制信息(例如1 st stage SCI)和在第二感知机会中检测到的第一边链路控制信息(例如1 st stage  SCI)所指示的频域资源分配(Frequency resource assignment)、时域资源分配(Time resource assignment)、资源预留周期(Resource reservation period)的域对应的值均相同的情况下，确定第一预留信息和第二预留信息是针对第二终端设备的预留指示或者针对第二终端设备的同一次周期发送的预留指示。
以上实施例可以作为判断的第一组条件，但本申请不限于此，例如还可以通过1 st stage SCI的其他域进行判断。
在一些实施例中，第一终端设备还在第一感知机会中检测到的第二边链路控制信息(例如2 nd stage SCI)和在第二感知机会中检测到的第二边链路控制信息(例如2 nd stage SCI)所指示的源标识(source ID)和/或目的标识(destination ID)均相同的情况下，确定第一预留信息和第二预留信息是针对第二终端设备的预留指示或者针对第二终端设备的同一次周期发送的预留指示。
以上实施例可以作为判断的第二组条件，但本申请不限于此，例如还可以通过2 nd stage SCI的其他域进行判断。
在一些实施例中，第一终端设备还可以在如下情况下，确定第一预留信息和第二预留信息是针对第二终端设备的预留指示或者针对第二终端设备的同一次周期发送的预留指示：
-在第一感知机会中检测到的第二边链路控制信息(例如2 nd stage SCI)和在第二感知机会中检测到的第二边链路控制信息(例如2 nd stage SCI)所指示的源标识和/或目的标识均相同，以及
-在第一感知机会中检测到的第一边链路控制信息(例如1 st stage SCI)和在第二感知机会中检测到的第一边链路控制信息(例如1 st stage SCI)所指示的所有域对应的值均相同，或者所指示的除优先级外的其他域对应的值均相同，或者频域资源分配、时域资源分配、资源预留周期的域对应的值均相同。
例如，如果基于UE能力(例如该UE只发送不接收)，或者当前UE的非连续接收(DRX)处于inactive time，UE只解码1st stage SCI，则UE可以只通过第一组条件判断当前的两个预留信息是否针对相同UE的同一次周期发送；如果基于UE能力(例如该UE同时进行发送和接收)，或者当前UE的DRX处于active time，则UE可以同时通过第一组和第二组条件判断当前的两个预留信息是否针对相同UE或者是否针对相同UE的同一次周期发送。
以下再进一步说明根据感知机会中的预留信息进行资源排除。
在一些实施例中，第一终端设备在第一感知机会和第二感知机会中的其中之一进行检测但另一个没有进行检测的情况下，根据进行了检测的感知机会中检测到的预留信息来确定是否排除候选资源。
其中，在检测到的预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值的情况下，确定从候选资源集合中排除所述候选资源。
图9是本申请实施例的在感知机会中检测预留信息的另一示例图。如图9所示，例如对应于候选时隙y i(其中包括一个或多个候选资源R x,y)，针对预留周期Pm的两个k值具有两个感知机会，即第一感知机会和第二感知机会。
例如，如图9所示，如果两个感知机会中，UE 1在其中的一个(例如第一感知机会)没进行检测(例如UE 1进行了SL或者UL发送，则基于半双工特性不能进行检测)，则只按照所检测的感知机会内的对应RSRP测量结果判断是否排除候选资源。
例如，在第二感知机会中检测到的第二预留信息902指示的资源与候选资源900在频域上至少部分重叠，并且第二预留信息902所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(1,2)，则UE 1确定从候选资源集合中排除所述候选资源900。
在一些实施例中，第一终端设备在第一感知机会和第二感知机会中均进行了检测，但只在其中一个感知机会中检测到所指示的资源在频域上与候选资源至少部分重叠的预留信息的情况下，根据检测到的预留信息来确定是否排除所述候选资源。
其中，在检测到的预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值的情况下，确定从候选资源集合中排除所述候选资源。
图10是本申请实施例的在感知机会中检测预留信息的另一示例图。如图10所示，例如对应于候选时隙y i(其中包括一个或多个候选资源R x,y)，针对预留周期Pm的两个k值具有两个感知机会，即第一感知机会和第二感知机会。
例如，如图10所示，如果两个感知机会中UE 1均进行了检测，但只有其中一个(例如第二感知机会)中检测到所指示的资源在频域上与候选资源1000至少部分重叠的预留信息1002，则UE 1只按照所检测到的预留信息1002所对应PSCCH/PSSCH的解调参考信号的RSRP测量结果判断是否将候选资源进行排除。
例如，在第二感知机会中检测到的第二预留信息1002指示的资源与候选资源1000在频域上至少部分重叠，并且第二预留信息1002所对应PSCCH/PSSCH的解调参考信 号的RSRP大于门限值Th(1,2)，则UE 1确定从候选资源集合中排除所述候选资源1000。
在一些实施例中，在第一感知机会和第二感知机会中分别检测到不同终端设备的预留信息或者相同终端设备针对不同发送的预留信息的情况下，如果其中一个预留信息指示的资源与候选资源在频域上至少部分重叠，并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值，第一终端设备确定从候选资源集合中排除所述候选资源。
图11是本申请实施例的在感知机会中检测预留信息的另一示例图。如图11所示，例如对应于候选时隙y i(其中包括一个或多个候选资源R x,y)，针对预留周期Pm的两个k值具有两个感知机会，即第一感知机会和第二感知机会。
例如，如图11所示，如果两个感知机会中UE 1均进行了检测，在第一感知机会中检测到的第三预留信息1101(来自UE 3)指示的资源与候选资源1100在频域上至少部分重叠，并且第三预留信息1101所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(2,1)，在第二感知机会中检测到的第二预留信息1102(来自UE 2)指示的资源与候选资源1100在频域上至少部分重叠，并且第二预留信息1102所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(1,2)，则UE 1确定从候选资源集合中排除所述候选资源1100。
再例如，如图11所示，如果两个感知机会中UE 1均进行了检测，在第一感知机会中检测到的第三预留信息1101(来自UE 3)指示的资源与候选资源1103在频域上至少部分重叠，并且第三预留信息1101所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(2,1)，在第二感知机会中检测到的第二预留信息1102(来自UE 2)指示的资源不与候选资源1103在频域上至少部分重叠，则UE 1确定不从候选资源集合中排除所述候选资源1103。
在一些实施例中，第一终端设备在第一感知机会和第二感知机会中检测到针对同一终端设备或者同一终端设备的同一周期发送的一对预留信息的情况下，
如果一对预留信息中距离候选资源最近的第一感知机会中检测到的预留信息所指示的资源与候选资源在频域上至少部分重叠并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值，确定所述一对预留信息对应的判定结果为排除所述候选资源，否则确定所述一对预留信息对应的判定结果为不排除所述候选资源。
例如，针对同一终端设备或者同一终端设备的同一周期发送的一对预留信息，可以参考图7中的第一预留信息701和第二预留信息702，或者可以参考图8中的第一预留 信息801和第二预留信息802。
在一些实施例中，第一终端设备在第一感知机会和第二感知机会中检测到多对预留信息的情况下，如果多对预留信息中至少一对预留信息的判定结果为排除候选资源，则第一终端设备确定从候选资源集合中排除所述候选资源；如果多对预留信息的判定结果均为不排除候选资源，则第一终端设备确定不从候选资源集合中排除所述候选资源。
图12是本申请实施例的在感知机会中检测预留信息的另一示例图。如图12所示，例如对应于候选时隙y i(其中包括一个或多个候选资源R x,y)，针对预留周期Pm的两个k值具有两个感知机会，即第一感知机会和第二感知机会。
例如，如图12所示，如果两个感知机会中UE 1均进行了检测，在第一感知机会中检测到第一预留信息1201(来自UE 2)和第三预留信息1203(来自UE 3)；第一预留信息1201指示的资源与候选资源1200在频域上至少部分重叠，并且第一预留信息1201所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(1,1)，第三预留信息1203指示的资源与候选资源1200在频域上至少部分重叠，并且第三预留信息1203所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(2,1)。
其中，门限值Th(2,1)中的第一个参数“2”表示对应UE 3，第二个参数“1”表示第一感知机会，因此门限值Th(2,1)表示来自UE 3的在第一感知机会中检测到的第三预留信息所对应的RSRP门限值。
在第二感知机会中检测到第二预留信息1202(来自UE 2)和第四预留信息1204(来自UE 3)；第二预留信息1202指示的资源与候选资源1200在频域上至少部分重叠，并且第二预留信息1202所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(1,2)，第四预留信息1204指示的资源与候选资源1200在频域上至少部分重叠，并且第四预留信息1204所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(2,2)。
其中，门限值Th(2,2)中的第一个参数“2”表示对应UE 3，第二个参数“2”表示第二感知机会，因此门限值Th(2,2)表示来自UE 3的在第二感知机会中检测到的第四预留信息所对应的RSRP门限值。门限值Th(2,1)和Th(2,2)可能相同，也可能不同。
因第一预留信息1201和第二预留信息1202均来自UE 2，可以看作一对预留信息，这一对预留信息中因最近感知机会中的第一预留信息1201所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(1,1)，因此对应的判定结果为不排除候选资源1200。
因第三预留信息1203和第四预留信息1204均来自UE 3，可以看作一对预留信息， 这一对预留信息中因最近感知机会中的第三预留信息1203所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(2,1)，因此对应的判定结果为不排除候选资源1200。
由此，UE 1确定不从候选资源集合中排除所述候选资源1200。
图13是本申请实施例的在感知机会中检测预留信息的另一示例图。如图13所示，例如对应于候选时隙y i(其中包括一个或多个候选资源R x,y)，针对预留周期Pm的两个k值具有两个感知机会，即第一感知机会和第二感知机会。
例如，如图13所示，如果两个感知机会中UE 1均进行了检测，在第一感知机会中检测到第一预留信息1301(来自UE 2)和第三预留信息1303(来自UE 3)；第一预留信息1301指示的资源与候选资源1300在频域上至少部分重叠，并且第一预留信息1301所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(1,1)，第三预留信息1303指示的资源与候选资源1300在频域上至少部分重叠，并且第三预留信息1303所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(2,1)。
在第二感知机会中检测到第二预留信息1302(来自UE 2)和第四预留信息1304(来自UE 3)；第二预留信息1302指示的资源与候选资源1300在频域上至少部分重叠，并且第二预留信息1302所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(1,2)，第四预留信息1304指示的资源与候选资源1300在频域上至少部分重叠，并且第四预留信息1304所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(2,2)。
因第一预留信息1301和第二预留信息1302均来自UE 2，可以看作一对预留信息，这一对预留信息中因最近感知机会中的第一预留信息1301所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(1,1)，因此对应的判定结果为排除候选资源1300。
因第三预留信息1303和第四预留信息1304均来自UE 3，可以看作一对预留信息，这一对预留信息中因最近感知机会中的第三预留信息1303所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(2,1)，因此对应的判定结果为不排除候选资源1300。
由此，UE 1确定从候选资源集合中排除所述候选资源1300。
在一些实施例中，第一终端设备在第一感知机会和/或第二感知机会中还检测到针对不同终端设备或者针对同一终端设备的不同发送的第三预留信息的情况下，如果第三预留信息指示的资源与候选资源在频域上至少部分重叠并且第三预留信息所对应 PSCCH/PSSCH的解调参考信号的RSRP大于门限值，和/或，至少一对预留信息的判定结果为排除候选资源，则第一终端设备确定从候选资源集合中排除所述候选资源，否则所述第一终端设备确定不从候选资源集合中排除所述候选资源。
图14是本申请实施例的在感知机会中检测预留信息的另一示例图。如图14所示，例如对应于候选时隙y i(其中包括一个或多个候选资源R x,y)，针对预留周期Pm的两个k值具有两个感知机会，即第一感知机会和第二感知机会。
例如，如图14所示，如果两个感知机会中UE 1均进行了检测，在第一感知机会中检测到第一预留信息1401(来自UE 2)和第三预留信息1403(来自UE 3)；第一预留信息1401指示的资源与候选资源1400在频域上至少部分重叠，并且第一预留信息1401所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(1,1)；第三预留信息1403指示的资源与候选资源1400在频域上至少部分重叠，并且第三预留信息1403所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(2,1)。
如图14所示，UE 1在第二感知机会中检测到的第二预留信息1402(来自UE 2)指示的资源与候选资源1400在频域上至少部分重叠，并且第二预留信息1402所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(1,2)。
第一预留信息1401和第二预留信息1402均来自UE 2，可以看作一对预留资源。最近的感知机会中的第一预留信息1401所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(1,1)，因此该一对预留资源的判定结果为不排除所述候选资源1400；而第三预留信息1403所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(2,1)，需要排除该候选资源1400。因此UE 1确定从候选资源集合中排除所述候选资源1400。
图15是本申请实施例的在感知机会中检测预留信息的另一示例图。如图15所示，例如对应于候选时隙y i(其中包括一个或多个候选资源R x,y)，针对预留周期Pm的两个k值具有两个感知机会，即第一感知机会和第二感知机会。
例如，如图15所示，如果两个感知机会中UE 1均进行了检测，在第一感知机会中检测到第一预留信息1501(来自UE 2)和第三预留信息1503(来自UE 3)；第一预留信息1501指示的资源与候选资源1500在频域上至少部分重叠，并且第一预留信息1501所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(1,1)；第三预留信息1503指示的资源与候选资源1500在频域上至少部分重叠，并且第三预留信息1503所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(2,1)。
如图15所示，UE 1在第二感知机会中检测到的第二预留信息1502(来自UE 2)指示的资源与候选资源1500在频域上至少部分重叠，并且第二预留信息1502所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值Th(1,2)。
第一预留信息1501和第二预留信息1502均来自UE 2，可以看作一对预留资源。最近的感知机会中的第一预留信息1501所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(1,1)，因此该一对预留资源的判定结果为不排除所述候选资源1500；而第三预留信息1503所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值Th(2,1)，也可以不排除该候选资源1500。因此UE 1确定不从候选资源集合中排除所述候选资源1500。
以上图14和图15以一对预留信息为例进行了说明，但本申请不限于此，对于一对以上的预留信息的情况可以参考图12和图13类似地进行处理，即可以将图12至图15的实施例结合起来。
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，在第一感知机会和第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的第一感知机会中检测到的第一预留信息来确定是否排除所述候选资源。由此，能够在边链路避免发生资源碰撞，保证系统可靠性的基础上，进一步避免产生过度排除的情况，能够增大资源的使用效率，并减少由于选择了其它资源造成额外的资源碰撞产生的性能下降。
第二方面的实施例
本申请实施例提供一种边链路资源的排除装置。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16是本申请实施例的边链路资源的排除装置的一示意图。如图16所示，边链路协作信息的指示装置1600包括：
检测单元1601，其在基于周期部分感知的一个候选资源针对一个预留周期所对应的第一感知机会和/或第二感知机会中进行边链路控制信息的检测；
处理单元1602，其在所述第一感知机会和所述第二感知机会中分别检测到第一预留 信息和第二预留信息的情况下，根据最近的所述第一感知机会中检测到的所述第一预留信息来确定是否排除所述候选资源。
在一些实施例中，所述第一预留信息和所述第二预留信息为针对第二终端设备的预留指示，或者，为针对第二终端设备的同一次周期发送的预留指示。
在一些实施例中，所述第一预留信息和所述第二预留信息指示所述预留周期，并且在频域上指示的资源具有相同的子信道大小以及相同的最低子信道索引。
在一些实施例中，所述第一感知机会为对于给定的所述预留周期在受处理时间限制的候选时隙中第一个时隙之前最近的一个感知机会，所述第二感知机会为对于给定的所述预留周期在所述最近的感知机会之前最后的一个感知机会。
在一些实施例中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述第一预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值的情况下，处理单元1602确定从候选资源集合中排除所述候选资源。
在一些实施例中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第一预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值，以及在所述第二感知机会中检测到的所述第二预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第二预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值的情况下，处理单元1602确定从候选资源集合中排除所述候选资源。
在一些实施例中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述第一预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值的情况下，处理单元1602确定不从候选资源集合中排除所述候选资源。
在一些实施例中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第一预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值，以及在所述第二感知机会中检测到的所述第二预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第二预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值的情况下，处理单元1602确定不从候选资源集合中排除所述候选资源。
在一些实施例中，处理单元1602还用于：按照所述第一感知机会中检测到的边链 路控制信息所指示的优先级，确定所述第一感知机会和所述第二感知机会中用于RSRP比较的门限值。
在一些实施例中，在所述第一感知机会中检测到的第一边链路控制信息和在所述第二感知机会中检测到的第一边链路控制信息所指示的所有域对应的值均相同，或者所指示的除优先级外的其他域对应的值均相同，或者频域资源分配、时域资源分配、资源预留周期的域对应的值均相同的情况下，处理单元1602确定所述第一预留信息和所述第二预留信息是针对第二终端设备的预留指示或者针对第二终端设备的同一次周期发送的预留指示。
在一些实施例中，在所述第一感知机会中检测到的第二边链路控制信息和在所述第二感知机会中检测到的第二边链路控制信息所指示的源标识和/或目的标识均相同的情况下，处理单元1602确定所述第一预留信息和所述第二预留信息是针对第二终端设备的预留指示或者针对第二终端设备的同一次周期发送的预留指示。
在一些实施例中，在所述第一感知机会中检测到的第二边链路控制信息和在所述第二感知机会中检测到的第二边链路控制信息所指示的源标识和/或目的标识均相同，以及在所述第一感知机会中检测到的第一边链路控制信息和在所述第二感知机会中检测到的第一边链路控制信息所指示的所有域对应的值均相同，或者所指示的除优先级外的其他域对应的值均相同，或者频域资源分配、时域资源分配、资源预留周期的域对应的值均相同的情况下，处理单元1602确定所述第一预留信息和所述第二预留信息是针对第二终端设备的预留指示或者针对第二终端设备的同一次周期发送的预留指示。
在一些实施例中，处理单元1602在所述第一感知机会和所述第二感知机会中的其中之一进行检测但另一个没有进行检测的情况下，根据进行了检测的感知机会中检测到的预留信息来确定是否排除所述候选资源。
在一些实施例中，处理单元1602在检测到的所述预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值的情况下，确定从候选资源集合中排除所述候选资源。
在一些实施例中，处理单元1602在所述第一感知机会和所述第二感知机会中均进行了检测，但只在其中一个感知机会中检测到所指示的资源在频域上与所述候选资源至少部分重叠的预留信息的情况下，根据检测到的所述预留信息来确定是否排除所述候选资源。
在一些实施例中，处理单元1602在检测到的所述预留信息指示的资源与所述候选 资源在频域上至少部分重叠，并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值的情况下，确定从候选资源集合中排除所述候选资源。
在一些实施例中，在所述第一感知机会和所述第二感知机会中分别检测到不同终端设备的预留信息或者相同终端设备针对不同发送的预留信息的情况下，
如果其中一个预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值，处理单元1602确定从候选资源集合中排除所述候选资源。
在一些实施例中，在所述第一感知机会和所述第二感知机会中检测到针对同一终端设备或者同一终端设备的同一周期发送的一对预留信息的情况下，
如果所述一对预留信息中距离所述候选资源最近的所述第一感知机会中检测到的预留信息所指示的资源与所述候选资源在频域上至少部分重叠并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值，处理单元1602确定所述一对预留信息对应的判定结果为排除所述候选资源，否则确定所述一对预留信息对应的判定结果为不排除所述候选资源。
在一些实施例中，在所述第一感知机会和所述第二感知机会中检测到多对预留信息的情况下，如果所述多对预留信息中至少一对预留信息的判定结果为排除所述候选资源，则所述第一终端设备确定从候选资源集合中排除所述候选资源；如果所述多对预留信息的判定结果均为不排除所述候选资源，则处理单元1602确定不从候选资源集合中排除所述候选资源。
在一些实施例中，在所述第一感知机会和/或所述第二感知机会中还检测到针对不同终端设备或者针对同一终端设备的不同发送的第三预留信息的情况下，
如果所述第三预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第三预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值，和/或，至少一对预留信息的判定结果为排除所述候选资源，则处理单元1602确定从候选资源集合中排除所述候选资源，否则确定不从候选资源集合中排除所述候选资源。
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。边链路资源的排除装置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，在第一感知机会和第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的第一感知机会中检测到的第一预留信息来确定是否排除所述候选资源。由此，能够在边链路避免发生资源碰撞，保证系统可靠性的基础上，进一步避免产生过度排除的情况，能够增大资源的使用效率，并减少由于选择了其它资源造成额外的资源碰撞产生的性能下降。
第三方面的实施例
本申请实施例还提供一种通信系统，可以参考图1，与第一、二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：
终端设备，其在基于周期部分感知的一个候选资源针对一个预留周期所对应的第一感知机会和/或第二感知机会中进行边链路控制信息的检测；以及在所述第一感知机会和所述第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的所述第一感知机会中检测到的所述第一预留信息来确定是否排除所述候选资源。
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17是本申请实施例的网络设备的构成示意图。如图17所示，网络设备1700可以包括：处理器1710(例如中央处理器CPU)和存储器1720；存储器1720耦合到处理器1710。其中该存储器1720可存储各种数据；此外还存储信息处理的程序1730，并且在处理器1710的控制下执行该程序1730。
此外，如图17所示，网络设备1700还可以包括：收发机1740和天线1750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1700也并不是必须要包括图17中所示的所有部件；此外，网络设备1700还可以包括图17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18是本申请实施例的终端设备的示意图。如图18所示，该终端设备1800可以包括处理器1810和存储器1820；存储器1820存储有数据和程序，并耦合到处理器1810。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1810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资源的排除方法。例如处理器1810可以被配置为进行如下的控制：在基于周期部分感知的一个候选资源针对一个预留周期所对应的第一感知机会(sensing occasion)和/或第二感知机会中进行边链路控制信息的检测；在所述第一感知机会和所述第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的所述第一感知机会中检测到的所述第一预留信息来确定是否排除所述候选资源。
如图18所示，该终端设备1800还可以包括：通信模块1830、输入单元1840、显示器1850、电源1860。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1800也并不是必须要包括图18中所示的所有部件，上述部件并不是必需的；此外，终端设备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方面的实施例所述的边链路资源的排除方法。
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方面的实施例所述的边链路资源的排除方法。
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1.一种边链路资源的排除方法，包括：
第一终端设备在基于周期部分感知的一个候选资源针对一个预留周期所对应的第一感知机会(sensing occasion)和/或第二感知机会中进行边链路控制信息的检测；
在所述第一感知机会和所述第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的所述第一感知机会中检测到的所述第一预留信息来确定是否排除所述候选资源。
附记2.根据附记1所述的方法，其中，所述第一预留信息和所述第二预留信息为针对第二终端设备的预留指示，或者，为针对第二终端设备的同一次周期发送的预留指示。
附记3.根据附记1所述的方法，其中，所述第一预留信息和所述第二预留信息指示所述预留周期，并且在频域上指示的资源具有相同的子信道大小(size)以及相同的最低(lowest)子信道索引。
附记4.根据附记1至3任一项所述的方法，其中，所述第一感知机会为对于给定的所述预留周期在受处理时间限制的候选时隙中第一个时隙之前最近(most recent)的一个感知机会，所述第二感知机会为对于给定的所述预留周期在所述最近的感知机会之 前最后(last)的一个感知机会。
附记5.根据附记1至4任一项所述的方法，其中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述第一预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值的情况下，确定从候选资源集合中排除所述候选资源。
附记6.根据附记1至4任一项所述的方法，其中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第一预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值，以及在所述第二感知机会中检测到的所述第二预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第二预留信息指示的解调参考信号的RSRP小于或等于门限值的情况下，确定从候选资源集合中排除所述候选资源。
附记7.根据附记1至4任一项所述的方法，其中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述第一预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值的情况下，确定不从候选资源集合中排除所述候选资源。
附记8.根据附记1至4任一项所述的方法，其中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第一预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP小于或等于门限值，以及在所述第二感知机会中检测到的所述第二预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第二预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值的情况下，确定不从候选资源集合中排除所述候选资源。
附记9.根据附记1至8任一项所述的方法，其中，所述方法还包括：
所述第一终端设备按照所述第一感知机会中检测到的边链路控制信息所指示的优先级，确定所述第一感知机会和所述第二感知机会中用于RSRP比较的门限值。
附记10.根据附记1至9任一项所述的方法，其中，所述方法还包括：
所述第一终端设备在所述第一感知机会中检测到的第一边链路控制信息和在所述第二感知机会中检测到的第一边链路控制信息所指示的所有域对应的值均相同，或者所指示的除优先级外的其他域对应的值均相同，或者频域资源分配、时域资源分配、资源预留周期的域对应的值均相同的情况下，确定所述第一预留信息和所述第二预留信息是针对所述第二终端设备的预留指示或者针对所述第二终端设备的同一次周期发送的预 留指示。
附记11.根据附记1至9任一项所述的方法，其中，所述方法还包括：
所述第一终端设备还在所述第一感知机会中检测到的第二边链路控制信息和在所述第二感知机会中检测到的第二边链路控制信息所指示的源标识和/或目的标识均相同的情况下，确定所述第一预留信息和所述第二预留信息是针对所述第二终端设备的预留指示或者针对所述第二终端设备的同一次周期发送的预留指示。
附记12.根据附记1至9任一项所述的方法，其中，所述方法还包括：
所述第一终端设备在所述第一感知机会中检测到的第二边链路控制信息和在所述第二感知机会中检测到的第二边链路控制信息所指示的源标识和/或目的标识均相同，以及在所述第一感知机会中检测到的第一边链路控制信息和在所述第二感知机会中检测到的第一边链路控制信息所指示的所有域对应的值均相同，或者所指示的除优先级外的其他域对应的值均相同，或者频域资源分配、时域资源分配、资源预留周期的域对应的值均相同的情况下，确定所述第一预留信息和所述第二预留信息是针对所述第二终端设备的预留指示或者针对所述第二终端设备的同一次周期发送的预留指示。
附记13.根据附记1至12任一项所述的方法，其中，所述方法还包括：
所述第一终端设备在所述第一感知机会和所述第二感知机会中的其中之一进行检测但另一个没有进行检测的情况下，根据进行了检测的感知机会中检测到的预留信息来确定是否排除所述候选资源。
附记14.根据附记13所述的方法，其中，在检测到的所述预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值的情况下，确定从候选资源集合中排除所述候选资源。
附记15.根据附记1至12任一项所述的方法，其中，所述方法还包括：
所述第一终端设备在所述第一感知机会和所述第二感知机会中均进行了检测，但只在其中一个感知机会中检测到所指示的资源在频域上与所述候选资源至少部分重叠的预留信息的情况下，根据检测到的所述预留信息来确定是否排除所述候选资源。
附记16.根据附记15所述的方法，其中，在检测到的所述预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值的情况下，确定从候选资源集合中排除所述候选资源。
附记17.根据附记1至12任一项所述的方法，其中，所述方法还包括：
在所述第一感知机会和所述第二感知机会中分别检测到不同终端设备的预留信息 或者相同终端设备针对不同发送的预留信息的情况下，
如果其中一个预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值，所述第一终端设备确定从候选资源集合中排除所述候选资源。
附记18.根据附记1至12任一项所述的方法，其中，所述方法还包括：
所述第一终端设备在所述第一感知机会和所述第二感知机会中检测到针对同一终端设备或者同一终端设备的同一周期发送的一对预留信息的情况下，
如果所述一对预留信息中距离所述候选资源最近的所述第一感知机会中检测到的预留信息所指示的资源与所述候选资源在频域上至少部分重叠并且所述预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值，确定所述一对预留信息对应的判定结果为排除所述候选资源，否则确定所述一对预留信息对应的判定结果为不排除所述候选资源。
附记19.根据附记18所述的方法，其中，所述方法还包括：
所述第一终端设备在所述第一感知机会和所述第二感知机会中检测到多对预留信息的情况下，
如果所述多对预留信息中至少一对预留信息的判定结果为排除所述候选资源，则所述第一终端设备确定从候选资源集合中排除所述候选资源；如果所述多对预留信息的判定结果均为不排除所述候选资源，则所述第一终端设备确定不从候选资源集合中排除所述候选资源。
附记20.根据附记18或19所述的方法，其中，所述方法还包括：
所述第一终端设备在所述第一感知机会和/或所述第二感知机会中还检测到针对不同终端设备或者针对同一终端设备的不同发送的第三预留信息的情况下，
如果所述第三预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第三预留信息所对应PSCCH/PSSCH的解调参考信号的RSRP大于门限值，和/或，至少一对预留信息的判定结果为排除所述候选资源，则所述第一终端设备确定从候选资源集合中排除所述候选资源，否则所述第一终端设备确定不从候选资源集合中排除所述候选资源。
附记21.一种终端设备，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20任一项所述的边链路资源的排除方法。

Claims (20)

  1. 一种边链路资源的排除装置，配置于第一终端设备，所述装置包括：
    检测单元，其在基于周期部分感知的一个候选资源针对一个预留周期所对应的第一感知机会和/或第二感知机会中进行边链路控制信息的检测；
    处理单元，其在所述第一感知机会和所述第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的所述第一感知机会中检测到的所述第一预留信息来确定是否排除所述候选资源。
  2. 根据权利要求1所述的装置，其中，所述第一预留信息和所述第二预留信息为针对第二终端设备的预留指示，或者，为针对第二终端设备的同一次周期发送的预留指示。
  3. 根据权利要求1所述的装置，其中，所述第一预留信息和所述第二预留信息指示所述预留周期，并且在频域上指示的资源具有相同的子信道大小以及相同的最低子信道索引。
  4. 根据权利要求1所述的装置，其中，所述第一感知机会为对于给定的所述预留周期在受处理时间限制的候选时隙中的第一个时隙之前最近的一个感知机会，所述第二感知机会为对于给定的所述预留周期在所述最近的感知机会之前最后的一个感知机会。
  5. 根据权利要求1所述的装置，其中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述第一预留信息所对应物理边链路控制信道和/或物理边链路共享信道的解调参考信号的参考信号接收功率大于门限值的情况下，所述处理单元确定从候选资源集合中排除所述候选资源。
  6. 根据权利要求1所述的装置，其中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第一预留信息所对应物理边链路控制信道和/或物理边链路共享信道的解调参考信号的参考信号接收功率大于门限值，以及在所述第二感知机会中检测到的所述第二预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第二预留信息指示的解调参考信号的参考信号接收功率小于或等于门限值的情况下，所述处理单元确定从候选资源集合中排除所述候选资源。
  7. 根据权利要求1所述的装置，其中，在所述第一感知机会中检测到的所述第一 预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述第一预留信息所对应物理边链路控制信道和/或物理边链路共享信道的解调参考信号的参考信号接收功率小于或等于门限值的情况下，所述处理单元确定不从候选资源集合中排除所述候选资源。
  8. 根据权利要求1所述的装置，其中，在所述第一感知机会中检测到的所述第一预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第一预留信息所对应物理边链路控制信道和/或物理边链路共享信道的解调参考信号的参考信号接收功率小于或等于门限值，以及在所述第二感知机会中检测到的所述第二预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第二预留信息所对应物理边链路控制信道和/或物理边链路共享信道的解调参考信号的参考信号接收功率大于门限值的情况下，所述处理单元确定不从候选资源集合中排除所述候选资源。
  9. 根据权利要求1所述的装置，其中，所述处理单元还用于：按照所述第一感知机会中检测到的边链路控制信息所指示的优先级，确定所述第一感知机会和所述第二感知机会中用于参考信号接收功率比较的门限值。
  10. 根据权利要求1所述的装置，其中，在所述第一感知机会中检测到的第一边链路控制信息和在所述第二感知机会中检测到的第一边链路控制信息所指示的所有域对应的值均相同，或者所指示的除优先级外的其他域对应的值均相同，或者频域资源分配、时域资源分配、资源预留周期的域对应的值均相同的情况下，所述处理单元确定所述第一预留信息和所述第二预留信息是针对第二终端设备的预留指示或者针对第二终端设备的同一次周期发送的预留指示。
  11. 根据权利要求1所述的装置，其中，在所述第一感知机会中检测到的第二边链路控制信息和在所述第二感知机会中检测到的第二边链路控制信息所指示的源标识和/或目的标识均相同的情况下，所述处理单元确定所述第一预留信息和所述第二预留信息是针对第二终端设备的预留指示或者针对第二终端设备的同一次周期发送的预留指示。
  12. 根据权利要求1所述的装置，其中，在所述第一感知机会中检测到的第二边链路控制信息和在所述第二感知机会中检测到的第二边链路控制信息所指示的源标识和/或目的标识均相同，以及在所述第一感知机会中检测到的第一边链路控制信息和在所述第二感知机会中检测到的第一边链路控制信息所指示的所有域对应的值均相同，或者所指示的除优先级外的其他域对应的值均相同，或者频域资源分配、时域资源分配、资源预留周期的域对应的值均相同的情况下，所述处理单元确定所述第一预留信息和所述第 二预留信息是针对第二终端设备的预留指示或者针对第二终端设备的同一次周期发送的预留指示。
  13. 根据权利要求1所述的装置，其中，所述处理单元在所述第一感知机会和所述第二感知机会中的其中之一进行检测但另一个没有进行检测的情况下，根据进行了检测的感知机会中检测到的预留信息来确定是否排除所述候选资源；
    其中，在检测到的所述预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述预留信息所对应物理边链路控制信道和/或物理边链路共享信道的解调参考信号的参考信号接收功率大于门限值的情况下，确定从候选资源集合中排除所述候选资源。
  14. 根据权利要求1所述的装置，其中，所述处理单元在所述第一感知机会和所述第二感知机会中均进行了检测，但只在其中一个感知机会中检测到所指示的资源在频域上与所述候选资源至少部分重叠的预留信息的情况下，根据检测到的所述预留信息来确定是否排除所述候选资源；
    其中，在检测到的所述预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述预留信息所对应物理边链路控制信道和/或物理边链路共享信道的解调参考信号的参考信号接收功率大于门限值的情况下，确定从候选资源集合中排除所述候选资源。
  15. 根据权利要求1所述的装置，其中，在所述第一感知机会和所述第二感知机会中分别检测到不同终端设备的预留信息或者相同终端设备针对不同发送的预留信息的情况下，
    如果其中一个预留信息指示的资源与所述候选资源在频域上至少部分重叠，并且所述预留信息所对应物理边链路控制信道和/或物理边链路共享信道的解调参考信号的参考信号接收功率大于门限值，所述处理单元确定从候选资源集合中排除所述候选资源。
  16. 根据权利要求1所述的装置，其中，在所述第一感知机会和所述第二感知机会中检测到针对同一终端设备或者同一终端设备的同一周期发送的一对预留信息的情况下，
    如果所述一对预留信息中距离所述候选资源最近的所述第一感知机会中检测到的预留信息所指示的资源与所述候选资源在频域上至少部分重叠并且所述预留信息所对应物理边链路控制信道和/或物理边链路共享信道的解调参考信号的参考信号接收功率大于门限值，所述处理单元确定所述一对预留信息对应的判定结果为排除所述候选资源，否则确定所述一对预留信息对应的判定结果为不排除所述候选资源。
  17. 根据权利要求16所述的装置，其中，在所述第一感知机会和所述第二感知机 会中检测到多对预留信息的情况下，
    如果所述多对预留信息中至少一对预留信息的判定结果为排除所述候选资源，则所述第一终端设备确定从候选资源集合中排除所述候选资源；如果所述多对预留信息的判定结果均为不排除所述候选资源，则所述处理单元确定不从候选资源集合中排除所述候选资源。
  18. 根据权利要求16所述的装置，其中，在所述第一感知机会和/或所述第二感知机会中还检测到针对不同终端设备或者针对同一终端设备的不同发送的第三预留信息的情况下，
    如果所述第三预留信息指示的资源与所述候选资源在频域上至少部分重叠并且所述第三预留信息所对应物理边链路控制信道和/或物理边链路共享信道的解调参考信号的参考信号接收功率大于门限值，和/或，至少一对预留信息的判定结果为排除所述候选资源，则所述处理单元确定从候选资源集合中排除所述候选资源，否则确定不从候选资源集合中排除所述候选资源。
  19. 一种边链路资源的排除方法，包括：
    终端设备在基于周期部分感知的一个候选资源针对一个预留周期所对应的第一感知机会和/或第二感知机会中进行边链路控制信息的检测；以及
    在所述第一感知机会和所述第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的所述第一感知机会中检测到的所述第一预留信息来确定是否排除所述候选资源。
  20. 一种通信系统，包括：
    终端设备，其在基于周期部分感知的一个候选资源针对一个预留周期所对应的第一感知机会和/或第二感知机会中进行边链路控制信息的检测；以及在所述第一感知机会和所述第二感知机会中分别检测到第一预留信息和第二预留信息的情况下，根据最近的所述第一感知机会中检测到的所述第一预留信息来确定是否排除所述候选资源。
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