WO2022063250A1 - 资源选择方法、装置及电子设备 - Google Patents

资源选择方法、装置及电子设备 Download PDF

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Publication number
WO2022063250A1
WO2022063250A1 PCT/CN2021/120452 CN2021120452W WO2022063250A1 WO 2022063250 A1 WO2022063250 A1 WO 2022063250A1 CN 2021120452 W CN2021120452 W CN 2021120452W WO 2022063250 A1 WO2022063250 A1 WO 2022063250A1
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Prior art keywords
resource
resources
periodic
cycle
time
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PCT/CN2021/120452
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English (en)
French (fr)
Inventor
王欢
彭淑燕
刘思綦
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维沃移动通信有限公司
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Publication of WO2022063250A1 publication Critical patent/WO2022063250A1/zh
Priority to US18/125,722 priority Critical patent/US20230232441A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/11—Semi-persistent scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a resource selection method, apparatus, and electronic device.
  • the resources periodically reserved by the transmitting terminal (TX UE) are not necessarily true predictions for the surrounding UEs.
  • reserved resources that is, the surrounding UEs are still more likely to select the periodic resources.
  • the reservation signaling of the TX UE is sent before the resource monitoring window, or the periodic resources of the next cycle are not reserved in the previous cycle.
  • the surrounding UEs are selecting resources, they cannot detect the periodic resources of the TX UE. Cause resource collision or interference.
  • Embodiments of the present application provide a resource selection method, apparatus, and electronic device, which can improve the reliability of side link transmission.
  • an embodiment of the present application provides a resource selection method, the method includes:
  • the sender terminal performs any of the following operations on its selected and/or reserved periodic resources:
  • the resource preemption detection of the periodic resource adopts an independent parameter
  • the periodic resource is excluded from the candidate resource set.
  • an embodiment of the present application provides a resource selection apparatus, the apparatus includes:
  • a processing module configured to perform any one of the following operations on the selected and/or reserved periodic resources:
  • the resource preemption detection of the periodic resource adopts an independent parameter
  • the periodic resource is excluded from the candidate resource set.
  • an embodiment of the present application further provides an electronic device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor, the program or instruction being The processor, when executed, implements the steps of the method as described above.
  • an embodiment of the present application provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the above method are implemented.
  • an embodiment of the present application provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, and implement the first aspect the method described.
  • the transmitting terminal when certain conditions are met, performs resource selection re-evaluation on the periodic resources it selects and/or reserves, or uses independent parameters for resource preemption detection of the periodic resources , or, release the periodic resource and/or perform resource reselection of the periodic resource, or exclude the periodic resource from the candidate resource set, through the above operations, it is possible to solve the problem of resource collision and resource interference problem, increasing the reliability of side-link transmissions.
  • FIG. 1 shows a schematic diagram of a wireless communication system
  • FIG. 2 shows a schematic diagram of the resource reservation performed by the transmitting end terminal for the resource selected by it
  • FIG. 3 shows a schematic flowchart of a resource selection method according to an embodiment of the present application
  • 4-7 show schematic diagrams of performing resource selection re-evaluation on periodic resources according to an embodiment of the present application
  • FIG. 8 is a schematic diagram of excluding periodic resources from a candidate resource set according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a resource selection apparatus according to an embodiment of the present application.
  • FIG. 10 shows a schematic diagram of the composition of a terminal according to an embodiment of the present application.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA single carrier frequency Division Multiple Access
  • SC-FDMA single carrier frequency Division Multiple Access
  • a CDMA system may implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA).
  • UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants.
  • a TDMA system may implement a radio technology such as the Global System for Mobile Communication (GSM).
  • GSM Global System for Mobile Communication
  • OFDMA system can realize such as UltraMobile Broadband (UMB), Evolved UTRA (Evolution-UTRA, E-UTRA), IEEE802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. radio technology.
  • UMB UltraMobile Broadband
  • Evolved UTRA Evolved UTRA
  • E-UTRA Evolved UTRA
  • IEEE802.11 Wi-Fi
  • WiMAX IEEE 802.16
  • IEEE 802.20 Flash-OFDM
  • Flash-OFDM Flash-OFDM
  • UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS).
  • LTE and higher LTE eg LTE-A
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd
  • CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2).
  • 3GPP2 3rd Generation Partnership Project 2
  • the techniques described herein may be used for both the systems and radio technologies mentioned above, as well as for other systems and radio technologies.
  • 3GPP2 3rd Generation Partnership Project 2
  • NR terminology is used in much of the following description, although these techniques are also applicable to applications other than NR system applications.
  • FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (Personal Digital Assistant) , PDA), mobile Internet Device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device and other terminal-side devices, it should be noted that the specific type of the terminal 11 is not limited in the embodiments of this application .
  • the network side device 12 may be a base station or a core network, wherein the above-mentioned base station may be a base station of 5G and later versions (for example: gNB, 5G NR NB, etc.), or a base station in other communication systems (for example: eNB, WLAN access point) , or other access points, etc.), or a location server (for example: E-SMLC or LMF (Location Manager Function)), where the base station may be referred to as Node B, Evolved Node B, Access Point, Base Transceiver Station (Base Transceiver Station, BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home B Node, home evolved Node B, WLAN access point, WiFi node or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary, it should be noted that in this Only the base station
  • New Radio (NR) sidelink (Sidelink, SL) resources are allocated in two ways, one is based on base station scheduling (mode 1), the other is based on terminal (User Equipment, UE) autonomous resource selection (mode 2) ).
  • the sidelink resources used by the UE for data transmission are determined by the base station and notified to the TX UE through downlink signaling; for the resource allocation method independently selected by the UE, the UE selects available resources from the (pre)configured resource pool.
  • the UE performs channel monitoring before resource selection, selects a resource set with less interference according to the channel monitoring result, and then randomly selects resources for transmission from the resource set.
  • the TX UE After the resource selection is triggered, the TX UE first determines the resource selection window.
  • the lower boundary of the resource selection window is at time T1 after the resource selection is triggered, and the upper boundary of the resource selection window is at time T2 after the triggering.
  • T2 is a value selected by the UE in the data delay (packet delay budget, PDB) transmitted by its transport block (Transport Block, TB), and T2 is not earlier than T1.
  • PDB packet delay budget
  • TB Transport Block
  • the UE Before resource selection, the UE needs to determine the candidate resource set (candidate resource set) for resource selection, according to the reference signal received power (Reference Signal Receiving Power, RSRP) measurement value on the resource in the resource selection window and the corresponding RSRP
  • the threshold (threshold) is compared (the RSRP and RSRP thresholds are not directly measured on the resources in the resource selection window, but are determined according to the sensing results), if the RSRP is higher than the RSRP threshold, then the resource After resource exclusion is performed, it cannot be included in the candidate resource set. After the resource exclusion is performed, the remaining resources in the resource selection window form the candidate resource set.
  • RSRP Reference Signal Receiving Power
  • the UE After the candidate resource set is determined, the UE randomly selects transmission resources in the candidate resource set. In addition, the UE can reserve transmission resources for the next transmission during this transmission.
  • the TX UE will reserve resources for its selected resources (reservations are divided into periodic reservations and aperiodic reservations), and the reserved resources are the physical sidelinks in the future.
  • the control channel Physical Sidelink Control Channel, PSCCH
  • PSSCH Physical Sidelink Share Channel
  • the aperiodic reservation can be implemented through the Time resource assignment field in the sidelink control information (Sidelink Control Information, SCI), and the reserved resources can at least be used for the transmission of the same TB.
  • SCI Sidelink Control Information
  • Periodic reservation can be implemented through the Resource reservation period field in the SCI, and the periodic resources currently reserved periodically can be used for the transmission of the next or several TBs.
  • a re-evaluation mechanism for resource selection is supported.
  • the brief description of the mechanism is as follows: In order for the UE to determine whether the selected but unreserved resources (PSCCH and/or PSSCH resources) are still available In an idle or low interference state, the UE performs resource selection re-evaluation at least at time 'm-T3', where time 'm' is the time when the resource reservation information is first sent, and T3 at least includes the duration of resource selection processing by the UE. The UE re-executes the step of resource selection at least in 'm-T3' to obtain a set of candidate resources.
  • the UE does not need to perform resource reselection; otherwise, the UE selects a new transmission resource in the alternative set (or in other words, the UE first obtains the RSRP threshold for determining the alternative resource set, The UE obtains the priority on the SCI that reserves the resource corresponding to the re-evaluation resource and the RSRP value monitored on the resource, and compares the RSRP value with the RSRP threshold corresponding to the priority. If the RSRP value is greater than the RSRP threshold, the UE Resource reselection is performed, otherwise no resource reselection is required).
  • a resource pre-emption mechanism is supported.
  • the brief description of the mechanism is as follows: resources already reserved by one UE and resources reserved or selected by other UEs with higher priority services Overlapping (partially overlapping), and the priority of the service packet to be sent by the UE is lower than the pre-configured priority, and the SL-RSRP measurement value of the UE on the relevant resources is greater than a certain associated SL-RSRP threshold value , the UE will trigger resource reselection.
  • the UE performs preemption detection at least at time 'm-T3', where time 'm' is the time when the resource is located or the resource is reserved
  • T3 at least includes the duration for the UE to perform resource selection processing.
  • the UE re-executes the step of resource selection at least in 'm-T3' to obtain a set of candidate resources. If the resource selected by the UE is still in the candidate resource set, the UE does not need to perform resource reselection; otherwise, the UE selects a new transmission resource in the candidate set.
  • the UE decides in advance whether to perform periodic reservation on the newly selected resource.
  • the resource selection re-evaluation is used to detect whether the unreserved resources are re-selected, and the resource preemption detection is used to detect whether the reserved resources are to be re-selected.
  • the resources periodically reserved by the TX UE are not necessarily real reserved resources for the surrounding UEs (that is, the surrounding UEs are still more likely to select the periodic resources).
  • the reservation signaling of the TX UE is sent before the resource monitoring window, or the periodic resources of the next cycle are not reserved in the previous cycle.
  • the surrounding UEs are selecting resources, they cannot detect the periodic resources of the TX UE. Cause resource collision or interference.
  • the resource re-selection triggered by resource selection re-evaluation and resource preemption detection is for periodic resources
  • the UE performs periodic reservation of the newly selected resource it does not release the periodic resource (that is, only releases the reselection resource).
  • the corresponding resource of the cycle that occurs, and the periodic resource of the following cycle is not released), the UE will reserve resources too much, causing system load.
  • each SL grant selects resources independently, which will cause the resources of different SL grants to overlap in time.
  • the embodiment of the present application provides a resource selection method, as shown in FIG. 3 , including:
  • Step 101 The sender terminal performs any one of the following operations on the periodic resources it selects and/or reserves:
  • the resource preemption detection of the periodic resource adopts an independent parameter
  • the periodic resource is excluded from the candidate resource set.
  • the transmitting end terminal when certain conditions are met, performs resource selection re-evaluation on the periodic resources it selects and/or reserves, or uses independent parameters for resource preemption detection of the periodic resources, or , releasing the periodic resources and/or performing resource reselection of the periodic resources, or excluding the periodic resources from the candidate resource set, through the above operations, the problems of resource collision and resource interference can be solved, Increases the reliability of sidelink transmissions.
  • performing resource selection re-evaluation on the periodic resource includes any of the following:
  • the transmitting end terminal does not send the side link control information SCI to remove the periodic reservation
  • the period can also be N discontinuous periods; among them, in NR SL, the TX UE will perform resource reservation for the resources it selects, and the reservation is divided into periodic reservation and aperiodic reservation. Reservation resources Used for future PSCCH and/or PSSCH transmissions.
  • Aperiodic reservation can be implemented through the Time resource assignment field in the SCI, and the reserved resources can at least be used for the transmission of the same TB.
  • Periodic reservation can be implemented through the Resource reservation period field in the SCI, and the periodic resources currently reserved periodically can be used for the transmission of the next TB.
  • M is a positive integer; where M can be equal to 1000ms/the maximum resource reservation period configured in the resource pool, time The unit can be an absolute time unit, such as seconds, milliseconds, time slots, sub-slots, logical time slots, etc.;
  • the total number of resources that have not been indicated by the periodic reservation information reaches the preset value.
  • the resource selection re-evaluation on the periodic resources located in the i+1 th cycle includes:
  • the time period between the second time before and the m time is T3
  • the m time is the time when the aperiodic resource reservation indication information is first sent
  • T3 at least includes the sending end The duration for the terminal to perform resource selection processing.
  • the resource selection re-evaluation may be performed on the resource at time m-T3, or the resource selection re-evaluation may be performed on the resource at other moments before the aperiodic resource reservation instruction is performed on the resource.
  • the UE implements a decision whether to perform resource selection re-evaluation at the above time; or, the UE must perform resource selection re-evaluation at the m-T3 time, and the UE implements a decision whether to perform the resource selection re-evaluation at other times than the m-T3 time.
  • the above-mentioned L, M, N, and the preset value may be configured or pre-configured by the control node or defined by a protocol.
  • performing resource selection re-evaluation on the periodic resource includes:
  • j is a positive integer less than or equal to i
  • j can be equal to i, or can be equal to i-1, i-2 , . . .
  • resource selection re-evaluation may be performed, for example, in the jth cycle, the resources in the i+1th cycle are reserved.
  • the time period before time and between time m is T3, time m is the time when the periodic resource reservation indication information is sent for the first time, and T3 at least includes the time length during which the transmitting terminal performs resource selection processing.
  • the UE implements a decision on whether to perform resource selection re-evaluation at the above-mentioned moment; or, the UE must perform resource selection re-evaluation at the m-T3 moment, and the UE implements a decision on whether to perform the resource selection re-evaluation at other moments other than the m-T3 moment. evaluate.
  • the resource is subjected to resource selection re-evaluation to determine whether resource reselection is finally performed. . In this way, collision and interference of resources can be avoided, and the reliability of side link transmission can be ensured.
  • the sender terminal performs virtual resource selection at the triggering moment of the resource selection re-evaluation, obtains the candidate resource set, and obtains the quality parameter threshold value for obtaining the candidate resource set, which is used as the resource selection re-evaluation.
  • Quality parameter threshold value For example, the Media Access Control (MAC) layer provides the physical layer with resources that need to be re-evaluated for resource selection. If the resource is behind the resource selection window or PDB of the current TB, the UE performs virtual resource selection on the current TB to obtain the quality parameter gate. The limit value is used to determine whether to trigger the resource reselection of the resource.
  • MAC Media Access Control
  • the quality parameter threshold value may specifically be the reference signal receiving power (Reference Signal Receiving Power, RSRP) treshold, and specifically, the RSRP treshold may have multiple values , each value is associated with a priority, that is, the internal parameter Th( pi ), which can be determined according to the RSRP treshold that matches the priority associated with the resource to be evaluated detected on the SCI to trigger resource reselection of the resource.
  • the quality parameter threshold value may also be defined by the protocol or configured by the control node or pre-configured by the control node.
  • the performing resource selection re-evaluation on the resource in the i+1th cycle includes:
  • the time period between the second time before and the m time is T3
  • the m time is the time when the aperiodic resource reservation indication information is first sent
  • T3 at least includes the sending end The duration for the terminal to perform resource selection processing.
  • the UE If it is determined that the resource reselection of the resource is triggered, in the jth cycle, the UE does not reserve the resource in the i+1th cycle; or, in the i+1th resource cycle, the UE performs resource re-selection on the resource. or, in the i+1th cycle, the UE continues to perform resource selection re-evaluation on the resource to determine whether to perform resource re-selection.
  • the method further includes any one of the following:
  • the resources located in the i+1th cycle are reselected, the transmitting end terminal is allowed to reselect the periodic resources, and the transmitting end terminal is allowed to periodically reserve the reselected resources.
  • the re-selection of the resource to be re-evaluated, whether to re-selection the periodic resource corresponding to the resource depends on the implementation of the UE, and/or whether the re-selection resource is periodically reserved depends on the implementation of the UE .
  • control node may configure or preconfigure at least two sets of parameters, which are used for resource preemption detection, and may include priority parameters and the like.
  • One set of parameters is used for daily use, and at least the other set of parameters is used when the resource preemption detection conditions are met, and the resource preemption detection conditions include any of the following:
  • the resource reservation indication information of the periodic resource does not include aperiodic resource reservation indication
  • the resource reservation indication information of the periodic resource does not include the aperiodic resource reservation indication and the periodic resource reservation indication sent in the first P cycles, and P is a positive integer, for example, P may be equal to 1;
  • the resource reservation indication information of the periodic resource does not include the aperiodic resource reservation indication and the periodic resource reservation indication sent by the first Q time units, and Q is a positive integer.
  • Q may be equal to 1000ms/
  • the maximum resource reservation period configured in the resource pool, and the time unit can be an absolute time unit, such as seconds, milliseconds, timeslots, sub-slots, logical timeslots, etc.
  • releasing the periodic resource and/or performing resource reselection of the periodic resource includes any of the following:
  • the SL grant is released and/or the SL grant is re-selected, and A is A positive integer, A can be a fixed parameter defined by the protocol, for example, it can be equal to 1, and A periods can be A continuous periods or A discontinuous periods; for example, there is no PSCCH or A period before the SL grant. PSSCH transmission, then the UE releases the SL grant, and/or, performs resource reselection of the SL grant;
  • B is a positive integer
  • B can be a fixed parameter defined by the protocol, for example, it can be equal to 1000ms/the maximum resource reservation period configured in the resource pool
  • the time unit can be an absolute time unit, such as seconds, milliseconds, timeslots, sub-slots, logical timeslots, etc. .
  • the UE releases the SL grant, and/or performs resource reselection of the SL grant.
  • the resource exclusion condition includes any of the following:
  • the periodic resource reservation indication information is detected within the resource selection window or the first C time units of the resource to perform resource reservation for the resource, and the resource is associated with
  • the measured value of the quality parameter is greater than the corresponding quality parameter threshold
  • C is a positive integer
  • C can be a fixed parameter defined by the protocol, for example, it can be equal to 1000ms/the maximum resource reservation period configured in the resource pool
  • the time unit can be absolute Time unit, such as seconds, milliseconds, time slots, sub-slots, logical time slots, etc., where the quality parameter measurement value can be the RSRP measurement value, and the quality parameter threshold value can be the RSRP threshold;
  • D is a positive integer, wherein the quality parameter measurement value may be the RSRP measurement value, and the quality parameter threshold value may be the RSRP threshold value.
  • the maximum or actual number of resources in a resource period is any of the following:
  • the value agreed in the protocol or the value configured by the control node or the value preconfigured by the control node includes any of the following:
  • the maximum number of TB transmissions configured in the resource pool According to the current fixed code rate CBR, the maximum number of TB transmissions configured in the resource pool
  • the maximum number of TB transfers configured by the resource pool Based on the current CBR and TB priority, the maximum number of TB transfers configured by the resource pool.
  • the maximum or actual number of resources in a resource period is any of the following:
  • SL grant the number of available resources reserved in a period, including periodic resources and/or aperiodic resources
  • SL grant is the sum of the number of resources reserved but released in one cycle, and the number of available resources in the cycle;
  • SL grant is the sum of the number of resources reserved but released in a period and the number of available resources reserved in the period.
  • the resources reserved but released within a period of the SL grant can be interpreted as: the UE has made a reservation indication for the resource, but due to the resource selection re-evaluation or preemption detection, the resource is determined to be released from the SL grant. Lose.
  • the transmitting end terminal selects resources from the candidate resource set, including any of the following:
  • the sender terminal can only select resources whose time does not overlap
  • the transmitting end terminal preferentially selects resources that do not overlap in time
  • the sender terminal is allowed to select resources with non-overlapping time, that is, if there is no resource satisfying the condition (non-overlapping time) in the candidate resource set, the UE may not continue to select transmission resources.
  • the sender terminal can only select resources with non-overlapping time, if there are no resources that satisfy the condition in the candidate resource set, the UE does not continue to select transmission resources, and the sender terminal performs any one of the following:
  • Random resource selection is iteratively performed in the candidate resource set until a resource that does not overlap in time with the selected resource is selected.
  • the transmitting terminal preferentially selects resources that do not overlap in time, and only allows the UE to select transmission resources that overlap in time if there are no resources that satisfy the condition (non-overlapping time) in the candidate resource set.
  • the transmitting end terminal preferentially selects resources with non-overlapping time including:
  • the transmitting end terminal is allowed to select temporally overlapping resources.
  • the UE selects 3 periodic resources, and in the i-th cycle, the UE performs hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) based PSSCH transmission, assuming that this PSSCH transmission
  • the UE reserves only the first two resources in the ith cycle (that is, the third resource indicated by the dotted line is not reserved aperiodically in the ith cycle). Then, the UE cannot perform reservation indication for the third periodic resource in period i.
  • the UE may perform resource selection re-evaluation on the third periodic resource located in the i+1th cycle. For example, at time m-T3 before the resource is indicated (eg, aperiodic reservation), resource selection re-evaluation is performed on the resource.
  • the UE selects 3 periodic resources.
  • the UE does not transmit PSSCH, and the UE does not periodically perform the i+1-th cycle resources in the i-th cycle.
  • the UE may perform resource selection re-evaluation on the three periodic resources located in the i+1th cycle. For example, at time m-T3 before the resource in the i+1th cycle is indicated (eg, aperiodic reservation), the resource is subjected to resource selection re-evaluation.
  • the resources located in the i+1-th cycle may be resource-reserved. Select Reassess.
  • the resources in the i+1-th cycle cannot be reserved. Resource selection re-evaluation.
  • the resource reservation information of the resource is detected 200ms or 2 cycles before the resource selection window, and the associated RSRP measurement value is greater than the corresponding RSRP threshold, then the resource cannot be included in the candidate resource set.
  • the execution body may be a resource selection apparatus, or a module in the resource selection apparatus for executing the method for loading a resource selection.
  • the resource selecting method provided by the embodiment of the present application is described by taking the method for selecting a loaded resource performed by a resource selecting device as an example.
  • An embodiment of the present application provides a resource selection apparatus, which is applied to a terminal 300. As shown in FIG. 9, the apparatus includes:
  • a processing module 310 configured to perform any one of the following operations on the selected and/or reserved periodic resources:
  • the resource preemption detection of the periodic resource adopts an independent parameter
  • the periodic resource is excluded from the candidate resource set.
  • the transmitting end terminal when certain conditions are met, performs resource selection re-evaluation on the periodic resources it selects and/or reserves, or uses independent parameters for resource preemption detection of the periodic resources, or , releasing the periodic resources and/or performing resource reselection of the periodic resources, or excluding the periodic resources from the candidate resource set, through the above operations, the problems of resource collision and resource interference can be solved, Increases the reliability of sidelink transmissions.
  • the processing module 310 is specifically configured to perform any one of the following:
  • the transmitting end terminal For the resources located in the i+1th cycle among the periodic resources, if in the N cycles before the i+1th cycle, the transmitting end terminal does not send the side link control information SCI to remove the periodic reservation For the resource located in the i+1th cycle, perform resource selection re-evaluation on the resource, where i, N are positive integers;
  • the sender terminal For the resources located in the i+1th cycle among the periodic resources, if M time units before the i+1th cycle, the sender terminal does not send an SCI to periodically reserve the resources in the i+1th cycle. Re-evaluation of resource selection is performed on the resources within the i+1 period, where M is a positive integer;
  • the total number of resources that have not been indicated by the periodic reservation information reaches the preset value. At least some of the resources in the i+1th cycle are re-evaluated for resource selection, and L is a positive integer.
  • the processing module 310 is specifically configured to perform an aperiodic resource reservation indication on the resource in the i+1th cycle, and in the ith before performing the aperiodic resource reservation indication on the resource for the first time. Re-evaluation of resource selection is performed at one time, the first time is not later than the second time, the second time is before the m time and the duration between the m time is T3, and the m time is the aperiodic resource reservation indication The time when the information is first sent, T3 at least includes the duration of the resource selection process performed by the sending terminal.
  • the processing module 310 is specifically configured to perform resource selection re-evaluation on the resources in the i+1th cycle in the jth cycle before the i+1th cycle, where j is a positive integer less than or equal to i.
  • the processing module 310 is specifically configured to perform a periodic resource reservation instruction for the resources in the i+1th period in the jth period, and before performing the periodic reservation instruction for the resources for the first time. Re-evaluation of resource selection is performed at the first moment, the first moment is not later than the second moment, the second moment is before the m moment and the duration between the m moment is T3, and the m moment is the periodic resource reservation indication
  • T3 at least includes the duration of the resource selection process performed by the sending terminal.
  • the processing module 310 is further configured to perform resource selection on the resource in the i+1th cycle if it is determined in the jth cycle that the resource located in the i+1th cycle meets the resource reselection condition. re-evaluate
  • the processing module 310 is specifically configured to perform an aperiodic resource reservation indication on the resource in the i+1th cycle, and in the ith before performing the aperiodic resource reservation indication on the resource for the first time. Re-evaluation of resource selection is performed at one time, the first time is not later than the second time, the second time is before the m time and the duration between the m time is T3, and the m time is the aperiodic resource reservation indication The time when the information is first sent, T3 at least includes the duration of the resource selection process performed by the sending terminal.
  • the processing module 310 is specifically configured to perform virtual resource selection at the triggering moment of resource selection re-evaluation, obtain a set of candidate resources, and obtain a quality parameter threshold for obtaining the set of candidate resources, as the resource selection. Quality parameter threshold for re-evaluation.
  • the processing module 310 is specifically configured to perform any one of the following:
  • the resources located in the i+1th cycle are reselected, the transmitting end terminal is allowed to reselect the periodic resources, and the transmitting end terminal is allowed to periodically reserve the reselected resources.
  • the resource preemption detection condition includes any of the following:
  • the resource reservation indication information of the periodic resource does not include aperiodic resource reservation indication
  • the resource reservation indication information of the periodic resource does not include the aperiodic resource reservation indication and the periodic resource reservation indication sent in the first P cycles, and P is a positive integer;
  • the resource reservation indication information of the periodic resource does not include the aperiodic resource reservation indication and the periodic resource reservation indication sent in the first Q time units, and Q is a positive integer.
  • the processing module 310 is specifically configured to perform any one of the following:
  • the SL grant is released and/or the SL grant is re-selected, and A is positive integer;
  • the SL grant is released and/or the resource reselection of the SL grant is performed, and B is a positive integer.
  • the resource exclusion condition includes any of the following:
  • the periodic resource reservation indication information is detected within the resource selection window or the first C time units of the resource to perform resource reservation for the resource, and the resource is associated with
  • the measured value of the quality parameter is greater than the corresponding quality parameter threshold value, and C is a positive integer
  • the resource For resources located in the resource selection window, if the resource is detected as a periodic resource, the detected resource reservation indication information is within the first D cycles of the resource, and the resource is associated with The quality parameter measurement value is greater than the corresponding quality parameter threshold value, and D is a positive integer.
  • the maximum or actual number of resources in one resource period is any of the following:
  • the value agreed in the protocol or the value configured by the control node or the value preconfigured by the control node includes any of the following:
  • the maximum number of TB transmissions configured in the resource pool According to the current fixed code rate CBR, the maximum number of TB transmissions configured in the resource pool
  • the maximum number of TB transfers configured by the resource pool Based on the current CBR and TB priority, the maximum number of TB transfers configured by the resource pool.
  • the maximum or actual number of resources in one resource period is any of the following:
  • SL grant is the sum of the number of resources reserved but released in one cycle, and the number of available resources in the cycle;
  • SL grant is the sum of the number of resources reserved but released in a period and the number of available resources reserved in the period.
  • the processing module 310 when selecting a resource from the candidate resource set, is specifically configured to perform any one of the following:
  • the processing module 310 is specifically configured to execute any one of the following:
  • Random resource selection is iteratively performed in the candidate resource set until a resource that does not overlap in time with the selected resource is selected.
  • the processing module 310 is specifically configured to allow selection of temporally overlapping resources if the current SL grant does not select any resources or the quantity of the selected resources is less than a preset resource quantity threshold.
  • the resource selection apparatus in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus may be a mobile electronic device or a non-mobile electronic device.
  • the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant).
  • UMPC ultra-mobile personal computer
  • netbook or a personal digital assistant
  • the non-mobile electronic device may be a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., the embodiment of the present application There is no specific limitation.
  • Network Attached Storage NAS
  • personal computer personal computer, PC
  • television television
  • teller machine a self-service machine
  • the resource selection device in this embodiment of the present application may be a device with an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • an embodiment of the present application further provides an electronic device, including a processor, a memory, a program or an instruction stored in the memory and executable on the processor, and the program or instruction is executed by the processor to implement the above.
  • an electronic device including a processor, a memory, a program or an instruction stored in the memory and executable on the processor, and the program or instruction is executed by the processor to implement the above.
  • the electronic devices in the embodiments of the present application include the aforementioned mobile electronic devices and non-mobile electronic devices.
  • the electronic device in this embodiment may be a terminal.
  • 10 is a schematic diagram of the hardware structure of a terminal implementing various embodiments of the present application.
  • the terminal 50 includes but is not limited to: a radio frequency unit 51, a network module 52, an audio output unit 53, an input unit 54, a sensor 55, a display unit 56, The user input unit 57 , the interface unit 58 , the memory 59 , the processor 510 , and the power supply 511 and other components.
  • the terminal structure shown in FIG. 10 does not constitute a limitation on the terminal, and the terminal may include more or less components than the one shown, or combine some components, or arrange different components.
  • the terminals include but are not limited to mobile phones, tablet computers, notebook computers, handheld computers, vehicle-mounted terminals, wearable devices, and pedometers.
  • the radio frequency unit 51 may be used for receiving and sending signals in the process of sending and receiving information or during a call. Specifically, after receiving the downlink data from the base station, it is processed by the processor 510; The uplink data is sent to the base station.
  • the radio frequency unit 51 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 51 can also communicate with the network and other devices through a wireless communication system.
  • the memory 59 may be used to store software programs as well as various data.
  • the memory 59 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program (such as a sound playback function, an image playback function, etc.) required for at least one function, and the like; Data created by the use of the mobile phone (such as audio data, phone book, etc.), etc.
  • memory 59 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • the processor 510 is the control center of the terminal, uses various interfaces and lines to connect various parts of the entire terminal, and executes by running or executing the software programs and/or modules stored in the memory 59, and calling the data stored in the memory 59. Various functions of the terminal and processing data, so as to monitor the terminal as a whole.
  • the processor 510 may include one or at least two processing units; preferably, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem
  • the modulation processor mainly handles wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 510.
  • the terminal 50 may also include a power supply 511 (such as a battery) for supplying power to various components.
  • a power supply 511 (such as a battery) for supplying power to various components.
  • the power supply 511 may be logically connected to the processor 510 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. Function.
  • the terminal 50 includes some unshown functional modules, which are not repeated here.
  • the processor 510 is configured to perform any one of the following operations on the selected and/or reserved periodic resources:
  • the resource preemption detection of the periodic resource adopts an independent parameter
  • the periodic resource is excluded from the candidate resource set.
  • the transmitting end terminal when certain conditions are met, performs resource selection re-evaluation on the periodic resources it selects and/or reserves, or uses independent parameters for resource preemption detection of the periodic resources, or , releasing the periodic resources and/or performing resource reselection of the periodic resources, or excluding the periodic resources from the candidate resource set, through the above operations, the problems of resource collision and resource interference can be solved, Increases the reliability of sidelink transmissions.
  • the processor 510 is specifically configured to execute any of the following:
  • the transmitting end terminal For the resources located in the i+1th cycle among the periodic resources, if in the N cycles before the i+1th cycle, the transmitting end terminal does not send the side link control information SCI to remove the periodic reservation For the resource located in the i+1th cycle, perform resource selection re-evaluation on the resource, where i, N are positive integers;
  • the sender terminal For the resources located in the i+1th cycle among the periodic resources, if M time units before the i+1th cycle, the sender terminal does not send an SCI to periodically reserve the resources in the i+1th cycle. Re-evaluation of resource selection is performed on the resources within the i+1 period, where M is a positive integer;
  • the total number of resources that have not been indicated by the periodic reservation information reaches the preset value. At least some of the resources in the i+1th cycle are re-evaluated for resource selection, and L is a positive integer.
  • the processor 510 is specifically configured to perform an aperiodic resource reservation indication on the resource in the i+1th cycle, and in the ith before the aperiodic resource reservation indication is performed on the resource for the first time. Re-evaluation of resource selection is performed at one time, the first time is not later than the second time, the second time is before the m time and the duration between the m time is T3, and the m time is the aperiodic resource reservation indication The time when the information is first sent, T3 at least includes the duration of the resource selection process performed by the sending terminal.
  • the processor 510 is specifically configured to perform resource selection re-evaluation on the resources in the i+1th cycle in the jth cycle before the i+1th cycle, where j is a positive integer less than or equal to i.
  • the processor 510 is specifically configured to perform a periodic resource reservation indication for the resources in the i+1 th period in the jth period, and before performing the periodic reservation instruction for the resources for the first time. Re-evaluation of resource selection is performed at the first moment, the first moment is not later than the second moment, the second moment is before the m moment and the duration between the m moment is T3, and the m moment is the periodic resource reservation indication
  • T3 at least includes the duration of the resource selection process performed by the sending terminal.
  • the processor 510 is further configured to perform resource selection on the resource in the i+1th cycle if it is determined in the jth cycle that the resource located in the i+1th cycle meets the resource reselection condition. re-evaluate
  • the processor 510 is specifically configured to perform an aperiodic resource reservation indication on the resource in the i+1th cycle, and in the ith before the aperiodic resource reservation indication is performed on the resource for the first time. Re-evaluation of resource selection is performed at one time, the first time is not later than the second time, the second time is before the m time and the duration between the m time is T3, and the m time is the aperiodic resource reservation indication The time when the information is first sent, T3 at least includes the duration of the resource selection process performed by the sending terminal.
  • the processor 510 is specifically configured to perform virtual resource selection at the triggering moment of the resource selection re-evaluation, obtain a set of candidate resources, and obtain a quality parameter threshold value for obtaining the set of candidate resources, as the resource selection. Quality parameter threshold for re-evaluation.
  • the processor 510 is specifically configured to execute any of the following:
  • the resources located in the i+1th cycle are reselected, the transmitting end terminal is allowed to reselect the periodic resources, and the transmitting end terminal is allowed to periodically reserve the reselected resources.
  • the resource preemption detection condition includes any of the following:
  • the resource reservation indication information of the periodic resource does not include aperiodic resource reservation indication
  • the resource reservation indication information of the periodic resource does not include the aperiodic resource reservation indication and the periodic resource reservation indication sent in the first P cycles, and P is a positive integer;
  • the resource reservation indication information of the periodic resource does not include the aperiodic resource reservation indication and the periodic resource reservation indication sent in the first Q time units, and Q is a positive integer.
  • the processor 510 is specifically configured to execute any of the following:
  • the SL grant is released and/or the SL grant is re-selected, and A is positive integer;
  • the SL grant is released and/or the resource reselection of the SL grant is performed, and B is a positive integer.
  • the resource exclusion condition includes any of the following:
  • the periodic resource reservation indication information is detected within the resource selection window or the first C time units of the resource to perform resource reservation for the resource, and the resource is associated with
  • the measured value of the quality parameter is greater than the corresponding quality parameter threshold value, and C is a positive integer
  • the resource For resources located in the resource selection window, if the resource is detected as a periodic resource, the detected resource reservation indication information is within the first D cycles of the resource, and the resource is associated with The quality parameter measurement value is greater than the corresponding quality parameter threshold value, and D is a positive integer.
  • the maximum or actual number of resources in one resource period is any of the following:
  • the value agreed in the protocol or the value configured by the control node or the value preconfigured by the control node includes any of the following:
  • the maximum number of TB transmissions configured in the resource pool According to the current fixed code rate CBR, the maximum number of TB transmissions configured in the resource pool
  • the maximum number of TB transfers configured by the resource pool Based on the current CBR and TB priority, the maximum number of TB transfers configured by the resource pool.
  • the maximum or actual number of resources in one resource period is any of the following:
  • SL grant is the sum of the number of resources reserved but released in one cycle, and the number of available resources in the cycle;
  • SL grant is the sum of the number of resources reserved but released in a period and the number of available resources reserved in the period.
  • the processor 510 when selecting a resource from the candidate resource set, is specifically configured to execute any one of the following:
  • the processor 510 is specifically configured to execute any one of the following:
  • Random resource selection is iteratively performed in the candidate resource set until a resource that does not overlap in time with the selected resource is selected.
  • the processor 510 is specifically configured to allow selection of temporally overlapping resources if the current SL grant does not select any resources or the quantity of the selected resources is less than a preset resource quantity threshold.
  • the embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the embodiment of the above-mentioned resource selection method is implemented, and can achieve The same technical effect, in order to avoid repetition, will not be repeated here.
  • the processor is the processor in the electronic device described in the foregoing embodiments.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above-mentioned embodiments of the resource selection method and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.
  • An embodiment of the present application further provides a computer program product, the computer program product is stored in a non-volatile storage medium, and the computer program product is configured to be executed by at least one processor to implement the above resource selection method.
  • Each process of the embodiment can achieve the same technical effect, and to avoid repetition, it will not be repeated here.
  • modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, for in other electronic units or combinations thereof that perform the functions described herein.
  • ASIC Application Specific Integrated Circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing equipment
  • PLD Programmable Logic Device
  • Field-Programmable Gate Array Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array
  • the terms “comprising”, “comprising” or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a series of elements does not include those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase “comprising a" does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.
  • the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

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Abstract

本申请公开了一种资源选择方法、装置及电子设备。资源选择方法包括：发送端终端对其选择和/或预留的周期性资源执行以下任一项操作：若满足预设的重评估条件，对所述周期性资源进行资源选择重评估；若满足预设的资源抢占检测条件，所述周期性资源的资源抢占检测采用独立的参数；若满足预设的资源选择触发条件，释放所述周期性资源和/或进行所述周期性资源的资源重选；若满足预设的资源排除条件，将所述周期性资源排除出备选资源集合。

Description

资源选择方法、装置及电子设备
相关申请的交叉引用
本申请主张在2020年9月25日在中国提交的中国专利申请号No.202011025678.7的优先权，其全部内容通过引用包含于此。
技术领域
本申请涉及通信技术领域，尤其涉及一种资源选择方法、装置及电子设备。
背景技术
由于新空口(New Radio，NR)旁链路(Sidelink，SL)资源选择的设计原因，发送端终端(TX UE)周期性预留的资源，对其周边UE来说并不一定是真实的预留资源(即周边UE仍有较大可能选择该周期性资源)。例如TX UE的预留信令发送是在资源监听窗口之前，或者在前一个周期没有预留下一个周期的周期性资源，周边UE在进行资源选择的时候，无法检测TX UE的周期性资源，造成资源碰撞或干扰。
发明内容
本申请实施例提供了一种资源选择方法、装置及电子设备，能够提高旁链路传输的可靠性。
第一方面，本申请实施例提供了一种资源选择方法，所述方法包括：
发送端终端对其选择和/或预留的周期性资源执行以下任一项操作：
若满足预设的重评估条件，对所述周期性资源进行资源选择重评估；
若满足预设的资源抢占检测条件，所述周期性资源的资源抢占检测采用独立的参数；
若满足预设的资源选择触发条件，释放所述周期性资源和/或进行所述周期性资源的资源重选；
若满足预设的资源排除条件，将所述周期性资源排除出备选资源集合。
第二方面，本申请实施例提供了一种资源选择装置，所述装置包括：
处理模块，用于对选择和/或预留的周期性资源执行以下任一项操作：
若满足预设的重评估条件，对所述周期性资源进行资源选择重评估；
若满足预设的资源抢占检测条件，所述周期性资源的资源抢占检测采用独立的参数；
若满足预设的资源选择触发条件，释放所述周期性资源和/或进行所述周期性资源的资源重选；
若满足预设的资源排除条件，将所述周期性资源排除出备选资源集合。
第三方面，本申请实施例还提供了一种电子设备，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如上所述的方法的步骤。
第四方面，本申请实施例提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如上所述的方法的步骤。
第五方面，本申请实施例提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的方法。
在本申请实施例中，在满足一定条件时，发送端终端对其选择和/或预留的周期性资源进行资源选择重评估，或，对所述周期性资源的资源抢占检测采用独立的参数，或，释放所述周期性资源和/或进行所述周期性资源的资源重选，或，将所述周期性资源排除出备选资源集合，通过以上操作，能够解决资源碰撞以及资源干扰的问题，增加旁链路传输的可靠性。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1表示无线通信系统的示意图；
图2表示发送端终端对其选择的资源进行资源预留的示意图；
图3表示本申请实施例资源选择方法的流程示意图；
图4-图7表示本申请实施例对周期性资源进行资源选择重评估的示意图；
图8表示本申请实施例将周期性资源排除出备选资源集合的示意图；
图9表示本申请实施例资源选择装置的结构示意图；
图10表示本申请实施例的终端的组成示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
本文所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，并且也可用于各种无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。术语“系统”和“网络”常被可互换地使用。CDMA系统可实现诸如CDMA2000、通用地面无线电接入(Universal Terrestrial Radio Access，UTRA)等无线电技术。UTRA包括宽带CDMA(Wideband Code Division Multiple Access，WCDMA)和其他CDMA变体。TDMA系统可实现诸如全球移动通信系统(Global System for Mobile Communication，GSM)之类的无线电技术。OFDMA系统可实现诸如超移动宽带(UltraMobile  Broadband，UMB)、演进型UTRA(Evolution-UTRA，E-UTRA)、IEEE802.11(Wi-Fi)、IEEE 802.16(WiMAX)、IEEE 802.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信系统(Universal Mobile Telecommunications System，UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。UTRA、E-UTRA、UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project，3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。然而，以下描述出于示例目的描述了NR系统，并且在以下大部分描述中使用NR术语，尽管这些技术也可应用于NR系统应用以外的应用。
以下描述提供示例而并非限定权利要求中阐述的范围、适用性或者配置。可以对所讨论的要素的功能和布置作出改变而不会脱离本公开的精神和范围。各种示例可恰适地省略、替代、或添加各种规程或组件。例如，可以按不同于所描述的次序来执行所描述的方法，并且可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
请参见图1，图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中，终端11也可以称作终端设备或者用户终端(User Equipment，UE)，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant，PDA)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备等终端侧设备，需要说明的是，在本申请实施例中并不限定终端11的具体类型。网络侧设备12可以是基站或核心网，其中，上述基站可以是5G及以后版本的基站(例如：gNB、5G NR NB等)，或者其他通信系统中的基站(例如：eNB、WLAN接入点、或其他接入点等)，或者为位置服务器(例如：E-SMLC或LMF(Location Manager Function))，其中，基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、 B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例，但是本申请实施例并不限定基站的具体类型和具体通信系统。
新空口(New Radio，NR)旁链路(Sidelink，SL)资源分配方式有两种，一种基于基站调度(mode 1)，另一种基于终端(User Equipment，UE)自主资源选择(mode 2)。对于基站调度的资源分配方式，UE用于数据传输的sidelink资源由基站决定，并通过下行信令通知TX UE；对于UE自主选择的资源分配方式，UE在(预)配置的资源池中选择可用的传输资源，UE在资源选择之前先进行信道监听，根据信道监听结果选择出干扰较小的资源集合，再从资源集合中随机选择用于传输的资源。
对于mode 2，具体的工作方式如下：
1)TX UE在资源选择被触发后，首先确定资源选择窗口。其中，资源选择窗口的下边界在资源选择触发后的T1时间，资源选择窗口的上边界在触发后的T2时间。
其中T2是UE在其传输块(Transport Block，TB)传输的数据时延(packet delay budget，PDB)内选择的值，T2不早于T1。
2)UE在资源选择之前，需要确定资源选择的备选资源集合(candidate resource set)，根据资源选择窗口内的资源上的参考信号接收功率(Reference Signal Receiving Power，RSRP)测量值与相应的RSRP门限(threshold)做对比(RSRP和RSRP threshold不是直接在所述资源选择窗口内的资源上直接测量的，而是根据监听(sensing)结果确定的)，如果RSRP高于RSRP threhold，那么对该资源进行资源排除，不能纳入备选资源集合，进行资源排除后资源选择窗口内剩余的资源组成备选资源集合。
备选资源集合中的资源在资源选择窗口中的资源的占比要不少于20％，如果少于x％(例如x＝20/40/60)，RSRP threshold需要按照步进值(3dB)进行增加，再进行所述资源排除操作，直到可以选出不少于所述x％的资源。
3)备选资源集合确定后，UE随机在备选资源集合中选择传输资源。另 外，UE在本次传输可以为接下来的传输预留传输资源。
如图2所示，在NR SL中，TX UE会对其选择的资源进行资源预留(预留分为周期性预留和非周期性预留),预留资源为以后的物理旁链路控制信道(Physical Sidelink Control Channel，PSCCH)和/或物理旁链路共享信道(Physical Sidelink Share Channel，PSSCH)传输使用。
非周期性预留可以通过旁链路控制信息(Sidelink Control Information，SCI)中的Time resource assignment域实现，预留的资源至少可以用作同一个TB的传输。
周期性预留可以通过SCI中的Resource reservation period域实现，当前周期性预留的周期性资源可以用作下一个或若干TB的传输。
在Mode 2资源分配模式中，资源选择的重评估(re-evaluation)机制被支持，该机制的简要描述如下：UE为了判断已经选择但未预留的资源(PSCCH和/或PSSCH资源)是否仍为空闲或低干扰状态，UE至少在‘m-T3’时刻进行资源选择的重评估，‘m’时刻是该资源的预留信息首次发送的时刻，T3至少包括UE进行资源选择处理的时长。UE至少在‘m-T3’重新执行资源选择的步骤，得到备选资源集合。如果UE所选资源仍在该备选资源集合中，UE无需进行资源重选；否则，UE在备选集合中选择新的传输资源(或者说，UE首先得到确定备选资源集合的RSRP threshold，UE获取重评估资源上相应的预留该资源的SCI上的priority以及该资源上监听得到的RSRP值，将RSRP值与所述priority相对应的RSRP threshold做对比，如果RSRP值大于RSRP threshold，UE则进行资源重选，否则无需进行资源重选)。
在Mode 2资源分配模式中，资源抢占(pre-emption)机制被支持，该机制的简要描述如下:一个UE已经预留的资源和其它具有更高优先级业务的UE所预留或选择的资源重叠(部分重叠)，且该UE的将要发送的业务包的优先级于低于预先配置的优先级，且该UE在相关资源上的SL-RSRP测量值大于某个associated SL-RSRP门限值时，该UE会触发资源的重新选择。
UE为了判断已经预留的资源(PSCCH和/或PSSCH资源)是否被抢占，UE至少在‘m-T3’时刻进行抢占检测，‘m’时刻是该资源所在的时刻或者是该资源的预留信息发送的时刻，T3至少包括UE进行资源选择处理的时长。UE 至少在‘m-T3’重新执行资源选择的步骤，得到备选资源集合。如果UE所选资源仍在该备选资源集合中，UE无需进行资源重选；否则，UE在备选集合中选择新的传输资源。
另外，重选的资源如果为周期性资源，UE事先决定是否对该新选的资源进行周期性预留。
所述资源选择重评估用来检测未预留资源是否进行重选，资源抢占检测用来检测预留的资源是否进行重选。但是，由于NR SL资源选择的设计原因，TX UE周期性预留的资源，对其周边UE来说并不一定是真实的预留资源(即周边UE仍有较大可能选择该周期性资源)。例如TX UE的预留信令发送是在资源监听窗口之前，或者在前一个周期没有预留下一个周期的周期性资源，周边UE在进行资源选择的时候，无法检测TX UE的周期性资源，造成资源碰撞或干扰。按现有描述，对周期性预留的资源仅能进行资源抢占检测，需要TX UE与周边UE进行数据包priority对比，这样只能在特定数据包发送时才能解决所述造成的资源碰撞或干扰问题，具有一定的局限性。
另外，如果资源选择重评估和资源抢占检测触发的资源重选针对的是周期性资源，UE如果对该新选的资源进行周期性预留，且不释放该周期性资源(即只释放重选发生的周期的相应资源，而不释放其后面周期的该周期性资源)，UE会过多预留资源，造成系统负载。
另外，UE进行资源选择时，每个SL grant是独立进行资源选择的，会造成不同的SL grant的资源在时间上重叠。
本申请实施例提供了一种资源选择方法，如图3所示，包括：
步骤101：发送端终端对其选择和/或预留的周期性资源执行以下任一项操作：
若满足预设的重评估条件，对所述周期性资源进行资源选择重评估；
若满足预设的资源抢占检测条件，所述周期性资源的资源抢占检测采用独立的参数；
若满足预设的资源选择触发条件，释放所述周期性资源和/或进行所述周期性资源的资源重选；
若满足预设的资源排除条件，将所述周期性资源排除出备选资源集合。
本实施例中，在满足一定条件时，发送端终端对其选择和/或预留的周期性资源进行资源选择重评估，或，对所述周期性资源的资源抢占检测采用独立的参数，或，释放所述周期性资源和/或进行所述周期性资源的资源重选，或，将所述周期性资源排除出备选资源集合，通过以上操作，能够解决资源碰撞以及资源干扰的问题，增加旁链路传输的可靠性。
若满足预设的重评估条件，对所述周期性资源进行资源选择重评估包括以下任一项：
对所述周期性资源中位于第i+1周期内的资源，若在所述第i+1周期之前的N个周期，所述发送端终端未发送旁链路控制信息SCI去周期性预留所述位于第i+1周期内的资源，那么在使用所述资源之前，对所述资源进行资源选择重评估，其中，i，N为正整数；其中，N个周期可以是N个连续的周期，也可以是N个不连续的周期；其中，在NR SL中，TX UE会对其选择的资源进行资源预留，预留分为周期性预留和非周期性预留,预留资源为以后的PSCCH和/或PSSCH传输使用。非周期性预留可以通过SCI中的Time resource assignment域实现，预留的资源至少可以用作同一个TB的传输。周期性预留可以通过SCI中的Resource reservation period域实现，当前周期性预留的周期性资源可以用作下一个TB的传输。
对所述周期性资源中位于第i+1周期内的资源，若在所述第i+1周期之前的M个时间单元，所述发送端终端未发送SCI去周期性预留所述位于第i+1周期内的资源，那么在使用所述资源之前，对所述资源进行资源选择重评估，M为正整数；其中，M可以等于1000ms/资源池中配置的最大资源预留周期，时间单元可以是绝对时间单元，比如秒、毫秒、时隙、子时隙、逻辑时隙等；
对所述周期性资源中位于第i+1周期内的资源，在第i+1周期之前的L个周期中，没有被周期性预留信息指示过的资源的总数目达到预设值，对第i+1周期内的至少部分资源进行资源选择重评估，L为正整数，其中，L个周期可以是L个连续的周期，也可以是L个不连续的周期，可以对第i+1周期内的部分资源进行资源选择重评估，也可以对第i+1周期内的全部资源进行资源选择重评估。
如果需要对所述位于第i+1周期的周期性资源进行资源选择重评估，对所述位于第i+1周期的周期性资源进行资源选择重评估包括：
在第i+1周期对所述资源进行非周期性资源预留指示，在首次对所述资源进行所述非周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述非周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理的时长。
其中，可以在m-T3时刻对所述资源进行资源选择重评估，也可以在对所述资源进行非周期性资源预留指示之前的其他时刻对所述资源进行资源选择重评估，具体地，UE实现决定是否在上述时刻进行资源选择重评估；或，UE必须在m-T3时刻进行资源选择重评估，且UE实现决定是否在m-T3时刻之外的其他时刻进行资源选择重评估。
其中，上述L、M、N、预设值可以为控制节点配置或预配置或协议定义的。
一些实施例中，若满足预设的重评估条件，对所述周期性资源进行资源选择重评估包括：
在第i+1周期之前的第j周期对第i+1周期内的资源进行资源选择重评估，j为小于等于i的正整数，j可以等于i，也可以等于i-1，i-2，…。
其中，在第j周期对位于第i+1个周期的资源进行预留(例如周期性预留)之前，可以进行资源选择重评估，比如，在第j周期对第i+1周期内的资源进行周期性资源预留指示，在首次对所述资源进行所述周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理的时长。具体地，UE实现决定是否在上述时刻进行资源选择重评估；或，UE必须在m-T3时刻进行资源选择重评估，且UE实现决定是否在m-T3时刻之外的其他时刻进行资源选择重评估。
另外，若在第j周期判定所述位于第i+1周期内的资源符合资源重选条件，在第i+1周期，对所述资源进行资源选择重评估，以判定最终是否进行资 源重选。这样可以避免资源的碰撞和干扰，保证旁链路传输的可靠性。
上述实施例中，所述发送端终端在资源选择重评估的触发时刻进行虚拟资源选择，获取备选资源集合，得到获取所述备选资源集合的质量参数门限值，作为资源选择重评估的质量参数门限值。比如，媒体介入控制(MAC)层向物理层提供需要进行资源选择重评估的资源，如果该资源在当前的TB的资源选择窗口或PDB之后，UE对当前TB进行虚拟资源选择，得到质量参数门限值，用于判决是否触发该资源的资源重选，其中，质量参数门限值，具体可以为参考信号接收功率(Reference Signal Receiving Power，RSRP)treshold，具体地，RSRP treshold可以有多个值，每个值关联一个优先级(priority)，即internal parameter Th(p i)，可以根据SCI上检测到的待评估资源所关联priority相匹配的RSRP treshold判决是否触发该资源的资源重选。或者，质量参数门限值还可以是协议定义的或控制节点配置的或控制节点预配置的。
一些实施例中，所述在第i+1周期，对所述资源进行资源选择重评估包括：
在第i+1周期对所述资源进行非周期性资源预留指示，在首次对所述资源进行所述非周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述非周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理的时长。
如果判断触发该资源的资源重选，可以在第j个周期，UE不预留该位于第i+1个周期的资源；或者，UE在第i+1个资源周期，对该资源进行资源重选；或者，UE在第i+1个周期，继续对该资源进行资源选择重评估，以判断是否进行资源重选。
一些实施例中，对所述周期性资源进行资源选择重评估之后，若判定位于第i+1周期内的资源符合资源重选条件，所述方法还包括以下任一项：
对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，重选的资源不进行周期性预留；
对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，对重选的资源进行周期性预留；
对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，允许发送端终端对重选的资源进行周期性预留；
对所有所述周期性资源进行重选，对重选的资源进行周期性预留；
对所述位于第i+1周期内的资源进行重选，允许发送端终端对所述周期性资源进行重选，允许发送端终端对重选的资源进行周期性预留。
其中，对所述进行重评估的资源进行重选，是否对该资源对应的周期性资源进行重选取决于UE实现，和/或，所述重选资源是否进行周期性预留取决于UE实现。
为了避免资源碰撞或干扰，控制节点可以配置或预配置至少两套参数，该参数用于进行资源抢占检测，可以包括优先级参数等。其中一套参数用于平时使用，其他至少一套参数用于满足资源抢占检测条件时使用，所述资源抢占检测条件包括以下任一项：
所述周期性资源的资源预留指示信息不包括非周期性资源预留指示；
所述周期性资源的资源预留指示信息不包括非周期性资源预留指示和前P个周期发送的周期性资源预留指示，P为正整数，比如P可以等于1；
所述周期性资源的资源预留指示信息不包括非周期性资源预留指示和前Q个时间单元发送的周期性资源预留指示，Q为正整数，一具体示例中，Q可以等于1000ms/资源池中配置的最大资源预留周期，时间单元可以是绝对时间单元，比如秒、毫秒、时隙、子时隙、逻辑时隙等。
一些实施例中，若满足预设的资源选择触发条件，释放所述周期性资源和/或进行所述周期性资源的资源重选包括以下任一项：
若旁链路授权SL grant的第i+1个周期的资源未被前A个周期发送的资源预留指示信息预留，释放该SL grant和/或进行该SL grant的资源重选，A为正整数，A可以为协议定义的固定的参数，比如可以等于1，A个周期可以为A个连续的周期也可以为A个不连续的周期；比如，该SL grant前A个周期没有PSCCH或PSSCH传输，那么UE释放该SL grant，和/或，进行该SL grant的资源重选；
若SL grant的第i+1个周期的资源未被前M个时间单元发送的资源预留指示信息预留，释放该SL grant和/或进行该SL grant的资源重选，B为正整 数，B可以为协议定义的固定的参数，比如可以等于1000ms/资源池中配置的最大资源预留周期，时间单元可以是绝对时间单元，比如秒、毫秒、时隙、子时隙、逻辑时隙等。比如，该SL grant前B个时间单元内没有PSCCH或PSSCH传输，那么UE释放该SL grant，和/或，进行该SL grant的资源重选。
一些实施例中，所述资源排除条件包括以下任一项：
对于位于资源选择窗口内的资源，在资源选择窗口或所述资源的前C个时间单元内检测到所述周期性资源预留指示信息对所述资源进行资源预留，且所述资源相关联的质量参数测量值大于对应的质量参数门限值，C为正整数，C可以为协议定义的固定的参数，比如可以等于1000ms/资源池中配置的最大资源预留周期，时间单元可以是绝对时间单元，比如秒、毫秒、时隙、子时隙、逻辑时隙等，其中，质量参数测量值可以为RSRP测量值，质量参数门限值可以为RSRP threshold；
对于位于资源选择窗口内的资源，若检测到所述资源为周期性资源，比如为其他UE的周期性资源，且所述检测到的资源预留指示信息是在所述资源的前D个周期内，且所述资源相关联的质量参数测量值大于对应的质量参数门限值，D为正整数，其中，质量参数测量值可以为RSRP测量值，质量参数门限值可以为RSRP threshold。
为了避免UE过多预留资源，减轻系统负载，一个资源周期内资源的最大数量或实际数量为以下任一项：
SL grant进行初始资源选择时所确定或选择的传输资源数量；
协议约定的值或控制节点配置的值或控制节点预配置的值。
其中，协议约定的值或控制节点配置的值或控制节点预配置的值包括以下任一项：
协议约定的传输块TB的最大传输次数；
资源池所配置的TB的最大传输次数；
根据当前的固定码率CBR，资源池所配置的TB的最大传输次数；
根据当前的CBR和TB优先级，资源池所配置的TB的最大传输次数。
其中，一个资源周期内资源的最大数量或实际数量为以下任一项：
SL grant一个周期内可用资源的数量；
SL grant一个周期内预留的可用资源的数量，包括周期性资源和/或非周期性资源；
SL grant一个周期内预留的但已经释放掉的资源数量，与周期内可用资源的数量的总和；
SL grant一个周期内预留的但已经释放掉的资源数量，与周期内预留的可用资源的数量的总和。
其中，SL grant一个周期内预留的但已经释放掉的资源可以解释为：UE已经对该资源进行预留指示，但是由于资源选择重评估或抢占检测，该资源被判定从该SL grant中释放掉。
一些实施例中，还包括发送端终端从备选资源集合中选择资源，包括以下任一项：
所述发送端终端只能选择时间不重叠的资源；
所述发送端终端优先选择时间不重叠的资源；
所述发送端终端允许选择时间不重叠的资源，即，如果备选资源集合中没有满足所述条件(时间不重叠)的资源，UE可以不再继续选择传输资源。
其中，若所述发送端终端只能选择时间不重叠的资源，如果备选资源集合中没有满足所述条件的资源，UE不再继续选择传输资源，所述发送端终端执行以下任一项：
在所述备选资源集合中选择资源之前，排除和已选资源在时间上重叠的资源，再进行随机资源选择；
在备选资源集合中反复进行随机资源选择，直到选择除和已选资源在时间上不重叠的资源。
其中，所述发送端终端优先选择时间不重叠的资源，如果备选资源集合中没有满足所述条件(时间不重叠)的资源，才允许UE选择时间上重叠的传输资源。
所述发送端终端优先选择时间不重叠的资源包括：
若当前的SL grant未选择任何资源或所选资源的数量小于预设的资源数量门限值，允许所述发送端终端选择时间上重叠的资源。
一具体实施例中，如图4所示，UE选择3个周期性资源，在第i个周期， UE进行混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)based PSSCH传输，假设该次PSSCH传输的过程中，UE在第i个周期只预留了前两个资源(即虚线表示的第三个资源没有在第i周期进行非周期性预留)。那么，UE在周期i无法对所述第三个周期性资源进行预留指示。UE可以对该位于第i+1周期的所述第三个周期性资源进行资源选择重评估。例如，在对该资源进行指示(例如非周期性预留)之前的m-T3时刻，对该资源进行资源选择重评估。
一具体实施例中，如图5所示，UE选择3个周期性资源，在第i个周期，UE没有PSSCH传输，UE在第i个周期没有对第i+1个周期的资源进行周期性预留指示。UE可以对该位于第i+1周期的三个周期性资源进行资源选择重评估。例如，在对位于第i+1个周期的资源进行指示(例如非周期性预留)之前的m-T3时刻，对该资源进行资源选择重评估。
一具体实施例中，如图6所示，第i个周期的预留信息对第i+1个周期内的资源进行资源预留指示之前，可以对位于第i+1周期内的资源进行资源选择重评估。
一具体实施例中，如图7所示，第i个周期的预留信息对第i+1个周期内的资源进行资源预留指示之后，不可以对位于第i+1周期内的资源进行资源选择重评估。
一具体实施例中，如图8所示，对于资源选择窗口内的资源，在资源选择窗口前200ms或2个周期检测到该资源的资源预留信息，相关联的RSRP测量值大于相应的RSRP threshold，那么该资源不能纳入备选资源集合。
需要说明的是，本申请实施例提供的资源选择方法，执行主体可以为资源选择装置，或者该资源选择装置中的用于执行加载资源选择方法的模块。本申请实施例中以资源选择装置执行加载资源选择方法为例，说明本申请实施例提供的资源选择方法。
本申请实施例提供了一种资源选择装置，应用于终端300，如图9所示，所述装置包括：
处理模块310，用于对选择和/或预留的周期性资源执行以下任一项操作：
若满足预设的重评估条件，对所述周期性资源进行资源选择重评估；
若满足预设的资源抢占检测条件，所述周期性资源的资源抢占检测采用独立的参数；
若满足预设的资源选择触发条件，释放所述周期性资源和/或进行所述周期性资源的资源重选；
若满足预设的资源排除条件，将所述周期性资源排除出备选资源集合。
本实施例中，在满足一定条件时，发送端终端对其选择和/或预留的周期性资源进行资源选择重评估，或，对所述周期性资源的资源抢占检测采用独立的参数，或，释放所述周期性资源和/或进行所述周期性资源的资源重选，或，将所述周期性资源排除出备选资源集合，通过以上操作，能够解决资源碰撞以及资源干扰的问题，增加旁链路传输的可靠性。
一些实施例中，所述处理模块310具体用于执行以下任一项：
对所述周期性资源中位于第i+1周期内的资源，若在所述第i+1周期之前的N个周期，所述发送端终端未发送旁链路控制信息SCI去周期性预留所述位于第i+1周期内的资源，对所述资源进行资源选择重评估，其中，i，N为正整数；
对所述周期性资源中位于第i+1周期内的资源，若在所述第i+1周期之前的M个时间单元，所述发送端终端未发送SCI去周期性预留所述位于第i+1周期内的资源，对所述资源进行资源选择重评估，M为正整数；
对所述周期性资源中位于第i+1周期内的资源，在第i+1周期之前的L个周期中，没有被周期性预留信息指示过的资源的总数目达到预设值，对第i+1周期内的至少部分资源进行资源选择重评估，L为正整数。
一些实施例中，所述处理模块310具体用于在第i+1周期对所述资源进行非周期性资源预留指示，在首次对所述资源进行所述非周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述非周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理的时长。
一些实施例中，所述处理模块310具体用于在第i+1周期之前的第j周期对第i+1周期内的资源进行资源选择重评估，j为小于等于i的正整数。
一些实施例中，所述处理模块310具体用于在第j周期对第i+1周期内的资源进行周期性资源预留指示，在首次对所述资源进行所述周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理的时长。
一些实施例中，所述处理模块310还用于若在第j周期判定所述位于第i+1周期内的资源符合资源重选条件，在第i+1周期，对所述资源进行资源选择重评估
一些实施例中，所述处理模块310具体用于在第i+1周期对所述资源进行非周期性资源预留指示，在首次对所述资源进行所述非周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述非周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理的时长。
一些实施例中，所述处理模块310具体用于在资源选择重评估的触发时刻进行虚拟资源选择，获取备选资源集合，得到获取所述备选资源集合的质量参数门限值，作为资源选择重评估的质量参数门限值。
一些实施例中，所述处理模块310具体用于执行以下任一项：
对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，重选的资源不进行周期性预留；
对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，对重选的资源进行周期性预留；
对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，允许发送端终端对重选的资源进行周期性预留；
对所有所述周期性资源进行重选，对重选的资源进行周期性预留；
对所述位于第i+1周期内的资源进行重选，允许发送端终端对所述周期性资源进行重选，允许发送端终端对重选的资源进行周期性预留。
一些实施例中，所述资源抢占检测条件包括以下任一项：
所述周期性资源的资源预留指示信息不包括非周期性资源预留指示；
所述周期性资源的资源预留指示信息不包括非周期性资源预留指示和前P个周期发送的周期性资源预留指示，P为正整数；
所述周期性资源的资源预留指示信息不包括非周期性资源预留指示和前Q个时间单元发送的周期性资源预留指示，Q为正整数。
一些实施例中，所述处理模块310具体用于执行以下任一项：
若旁链路授权SL grant的第i+1个周期的资源未被前A个周期发送的资源预留指示信息预留，释放该SL grant和/或进行该SL grant的资源重选，A为正整数；
若SL grant的第i+1个周期的资源未被前M个时间单元发送的资源预留指示信息预留，释放该SL grant和/或进行该SL grant的资源重选，B为正整数。
一些实施例中，所述资源排除条件包括以下任一项：
对于位于资源选择窗口内的资源，在资源选择窗口或所述资源的前C个时间单元内检测到所述周期性资源预留指示信息对所述资源进行资源预留，且所述资源相关联的质量参数测量值大于对应的质量参数门限值，C为正整数；
对于位于资源选择窗口内的资源，若检测到所述资源为周期性资源，且所述检测到的资源预留指示信息是在所述资源的前D个周期内，且所述资源相关联的质量参数测量值大于对应的质量参数门限值，D为正整数。
一些实施例中，一个资源周期内资源的最大数量或实际数量为以下任一项：
SL grant进行初始资源选择时所确定或选择的传输资源数量；
协议约定的值或控制节点配置的值或控制节点预配置的值。
其中，协议约定的值或控制节点配置的值或控制节点预配置的值包括以下任一项：
协议约定的传输块TB的最大传输次数；
资源池所配置的TB的最大传输次数；
根据当前的固定码率CBR，资源池所配置的TB的最大传输次数；
根据当前的CBR和TB优先级，资源池所配置的TB的最大传输次数。
一些实施例中，一个资源周期内资源的最大数量或实际数量为以下任一项：
SL grant一个周期内可用资源的数量；
SL grant一个周期内预留的可用资源的数量；
SL grant一个周期内预留的但已经释放掉的资源数量，与周期内可用资源的数量的总和；
SL grant一个周期内预留的但已经释放掉的资源数量，与周期内预留的可用资源的数量的总和。
一些实施例中，从备选资源集合中选择资源时，所述处理模块310具体用于执行以下任一项：
只能选择时间不重叠的资源；
优先选择时间不重叠的资源；
允许选择时间不重叠的资源。
一些实施例中，若只能选择时间不重叠的资源，所述处理模块310具体用于执行以下任一项：
在所述备选资源集合中选择资源之前，排除和已选资源在时间上重叠的资源，再进行随机资源选择；
在备选资源集合中反复进行随机资源选择，直到选择除和已选资源在时间上不重叠的资源。
一些实施例中，所述处理模块310具体用于若当前的SL grant未选择任何资源或所选资源的数量小于预设的资源数量门限值，允许选择时间上重叠的资源。
本申请实施例中的资源选择装置可以是装置，也可以是终端中的部件、集成电路、或芯片。该装置可以是移动电子设备，也可以为非移动电子设备。示例性的，移动电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本或者个人数字助理(personal digital assistant，PDA)等，非移动电子设备可以为网络附属存储器(Network Attached Storage，NAS)、个 人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例中的资源选择装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统，可以为ios操作系统，还可以为其他可能的操作系统，本申请实施例不作具体限定。
可选的，本申请实施例还提供一种电子设备，包括处理器，存储器，存储在存储器上并可在所述处理器上运行的程序或指令，该程序或指令被处理器执行时实现上述资源选择方法的实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要注意的是，本申请实施例中的电子设备包括上述所述的移动电子设备和非移动电子设备。
本实施例的电子设备可以为终端。图10为实现本申请各个实施例的一种终端的硬件结构示意图，该终端50包括但不限于：射频单元51、网络模块52、音频输出单元53、输入单元54、传感器55、显示单元56、用户输入单元57、接口单元58、存储器59、处理器510、以及电源511等部件。本领域技术人员可以理解，图10中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本申请实施例中，终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
应理解的是，本申请实施例中，射频单元51可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器510处理；另外，将上行的数据发送给基站。通常，射频单元51包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元51还可以通过无线通信系统与网络和其他设备通信。
存储器59可用于存储软件程序以及各种数据。存储器59可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器59可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少 一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器510是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器59内的软件程序和/或模块，以及调用存储在存储器59内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。处理器510可包括一个或至少两个处理单元；优选的，处理器510可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器510中。
终端50还可以包括给各个部件供电的电源511(比如电池)，优选的，电源511可以通过电源管理系统与处理器510逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，终端50包括一些未示出的功能模块，在此不再赘述。
其中，处理器510用于对选择和/或预留的周期性资源执行以下任一项操作：
若满足预设的重评估条件，对所述周期性资源进行资源选择重评估；
若满足预设的资源抢占检测条件，所述周期性资源的资源抢占检测采用独立的参数；
若满足预设的资源选择触发条件，释放所述周期性资源和/或进行所述周期性资源的资源重选；
若满足预设的资源排除条件，将所述周期性资源排除出备选资源集合。
本实施例中，在满足一定条件时，发送端终端对其选择和/或预留的周期性资源进行资源选择重评估，或，对所述周期性资源的资源抢占检测采用独立的参数，或，释放所述周期性资源和/或进行所述周期性资源的资源重选，或，将所述周期性资源排除出备选资源集合，通过以上操作，能够解决资源碰撞以及资源干扰的问题，增加旁链路传输的可靠性。
一些实施例中，所述处理器510具体用于执行以下任一项：
对所述周期性资源中位于第i+1周期内的资源，若在所述第i+1周期之前的N个周期，所述发送端终端未发送旁链路控制信息SCI去周期性预留所述位于第i+1周期内的资源，对所述资源进行资源选择重评估，其中，i，N为 正整数；
对所述周期性资源中位于第i+1周期内的资源，若在所述第i+1周期之前的M个时间单元，所述发送端终端未发送SCI去周期性预留所述位于第i+1周期内的资源，对所述资源进行资源选择重评估，M为正整数；
对所述周期性资源中位于第i+1周期内的资源，在第i+1周期之前的L个周期中，没有被周期性预留信息指示过的资源的总数目达到预设值，对第i+1周期内的至少部分资源进行资源选择重评估，L为正整数。
一些实施例中，所述处理器510具体用于在第i+1周期对所述资源进行非周期性资源预留指示，在首次对所述资源进行所述非周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述非周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理的时长。
一些实施例中，所述处理器510具体用于在第i+1周期之前的第j周期对第i+1周期内的资源进行资源选择重评估，j为小于等于i的正整数。
一些实施例中，所述处理器510具体用于在第j周期对第i+1周期内的资源进行周期性资源预留指示，在首次对所述资源进行所述周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理的时长。
一些实施例中，所述处理器510还用于若在第j周期判定所述位于第i+1周期内的资源符合资源重选条件，在第i+1周期，对所述资源进行资源选择重评估
一些实施例中，所述处理器510具体用于在第i+1周期对所述资源进行非周期性资源预留指示，在首次对所述资源进行所述非周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述非周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理 的时长。
一些实施例中，所述处理器510具体用于在资源选择重评估的触发时刻进行虚拟资源选择，获取备选资源集合，得到获取所述备选资源集合的质量参数门限值，作为资源选择重评估的质量参数门限值。
一些实施例中，所述处理器510具体用于执行以下任一项：
对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，重选的资源不进行周期性预留；
对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，对重选的资源进行周期性预留；
对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，允许发送端终端对重选的资源进行周期性预留；
对所有所述周期性资源进行重选，对重选的资源进行周期性预留；
对所述位于第i+1周期内的资源进行重选，允许发送端终端对所述周期性资源进行重选，允许发送端终端对重选的资源进行周期性预留。
一些实施例中，所述资源抢占检测条件包括以下任一项：
所述周期性资源的资源预留指示信息不包括非周期性资源预留指示；
所述周期性资源的资源预留指示信息不包括非周期性资源预留指示和前P个周期发送的周期性资源预留指示，P为正整数；
所述周期性资源的资源预留指示信息不包括非周期性资源预留指示和前Q个时间单元发送的周期性资源预留指示，Q为正整数。
一些实施例中，所述处理器510具体用于执行以下任一项：
若旁链路授权SL grant的第i+1个周期的资源未被前A个周期发送的资源预留指示信息预留，释放该SL grant和/或进行该SL grant的资源重选，A为正整数；
若SL grant的第i+1个周期的资源未被前M个时间单元发送的资源预留指示信息预留，释放该SL grant和/或进行该SL grant的资源重选，B为正整数。
一些实施例中，所述资源排除条件包括以下任一项：
对于位于资源选择窗口内的资源，在资源选择窗口或所述资源的前C个 时间单元内检测到所述周期性资源预留指示信息对所述资源进行资源预留，且所述资源相关联的质量参数测量值大于对应的质量参数门限值，C为正整数；
对于位于资源选择窗口内的资源，若检测到所述资源为周期性资源，且所述检测到的资源预留指示信息是在所述资源的前D个周期内，且所述资源相关联的质量参数测量值大于对应的质量参数门限值，D为正整数。
一些实施例中，一个资源周期内资源的最大数量或实际数量为以下任一项：
SL grant进行初始资源选择时所确定或选择的传输资源数量；
协议约定的值或控制节点配置的值或控制节点预配置的值。
其中，协议约定的值或控制节点配置的值或控制节点预配置的值包括以下任一项：
协议约定的传输块TB的最大传输次数；
资源池所配置的TB的最大传输次数；
根据当前的固定码率CBR，资源池所配置的TB的最大传输次数；
根据当前的CBR和TB优先级，资源池所配置的TB的最大传输次数。
一些实施例中，一个资源周期内资源的最大数量或实际数量为以下任一项：
SL grant一个周期内可用资源的数量；
SL grant一个周期内预留的可用资源的数量；
SL grant一个周期内预留的但已经释放掉的资源数量，与周期内可用资源的数量的总和；
SL grant一个周期内预留的但已经释放掉的资源数量，与周期内预留的可用资源的数量的总和。
一些实施例中，从备选资源集合中选择资源时，所述处理器510具体用于执行以下任一项：
只能选择时间不重叠的资源；
优先选择时间不重叠的资源；
允许选择时间不重叠的资源。
一些实施例中，若只能选择时间不重叠的资源，所述处理器510具体用于执行以下任一项：
在所述备选资源集合中选择资源之前，排除和已选资源在时间上重叠的资源，再进行随机资源选择；
在备选资源集合中反复进行随机资源选择，直到选择除和已选资源在时间上不重叠的资源。
一些实施例中，所述处理器510具体用于若当前的SL grant未选择任何资源或所选资源的数量小于预设的资源数量门限值，允许选择时间上重叠的资源。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述资源选择方法的实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的电子设备中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述资源选择方法的实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序产品，所述计算机程序产品被存储在非易失的存储介质中，所述计算机程序产品被配置成被至少一个处理器执行以实现上述资源选择方法的实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
可以理解的是，本公开描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，模块、单元、子模块、子单元等可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits， ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (28)

  1. 一种资源选择方法，包括：
    发送端终端对其选择和/或预留的周期性资源执行以下任一项操作：
    若满足预设的重评估条件，对所述周期性资源进行资源选择重评估；
    若满足预设的资源抢占检测条件，所述周期性资源的资源抢占检测采用独立的参数；
    若满足预设的资源选择触发条件，释放所述周期性资源和/或进行所述周期性资源的资源重选；
    若满足预设的资源排除条件，将所述周期性资源排除出备选资源集合。
  2. 根据权利要求1所述的资源选择方法，其中，若满足预设的重评估条件，对所述周期性资源进行资源选择重评估包括以下任一项：
    对所述周期性资源中位于第i+1周期内的资源，若在所述第i+1周期之前的N个周期，所述发送端终端未发送旁链路控制信息SCI去周期性预留所述位于第i+1周期内的资源，对所述资源进行资源选择重评估，其中，i，N为正整数；
    对所述周期性资源中位于第i+1周期内的资源，若在所述第i+1周期之前的M个时间单元，所述发送端终端未发送SCI去周期性预留所述位于第i+1周期内的资源，对所述资源进行资源选择重评估，M为正整数；
    对所述周期性资源中位于第i+1周期内的资源，在第i+1周期之前的L个周期中，没有被周期性预留信息指示过的资源的总数目达到预设值，对第i+1周期内的至少部分资源进行资源选择重评估，L为正整数。
  3. 根据权利要求2所述的资源选择方法，其中，对所述位于第i+1周期的周期性资源进行资源选择重评估包括：
    在第i+1周期对所述资源进行非周期性资源预留指示，在首次对所述资源进行所述非周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述非周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理的时长。
  4. 根据权利要求1所述的资源选择方法，其中，若满足预设的重评估条件，对所述周期性资源进行资源选择重评估包括：
    在第i+1周期之前的第j周期对第i+1周期内的资源进行资源选择重评估，j为小于等于i的正整数。
  5. 根据权利要求4所述的资源选择方法，其中，在第i+1周期之前的第j周期对位于第i+1周期的资源进行资源选择重评估包括：
    在第j周期对第i+1周期内的资源进行周期性资源预留指示，在首次对所述资源进行所述周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理的时长。
  6. 根据权利要求4所述的资源选择方法，还包括：
    若在第j周期判定位于第i+1周期内的资源符合资源重选条件，在第i+1周期，对所述资源进行资源选择重评估。
  7. 根据权利要求6所述的资源选择方法，其中，所述在第i+1周期，对所述资源进行资源选择重评估包括：
    在第i+1周期对所述资源进行非周期性资源预留指示，在首次对所述资源进行所述非周期性预留指示之前的第一时刻进行资源选择重评估，第一时刻不晚于第二时刻，所述第二时刻在m时刻之前且与m时刻之间的时长为T3，m时刻为所述非周期性资源预留指示信息首次发送的时刻，T3至少包括所述发送端终端进行资源选择处理的时长。
  8. 根据权利要求1所述的资源选择方法，其中，所述发送端终端在资源选择重评估的触发时刻进行虚拟资源选择，获取备选资源集合，得到获取所述备选资源集合的质量参数门限值，作为资源选择重评估的质量参数门限值。
  9. 根据权利要求1所述的资源选择方法，其中，对所述周期性资源进行资源选择重评估之后，若判定位于第i+1周期内的资源符合资源重选条件，所述方法还包括以下任一项：
    对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，重选的资源不进行周期性预留；
    对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，对重选的资源进行周期性预留；
    对所述位于第i+1周期内的资源进行重选，不对所有所述周期性资源进行重选，允许发送端终端对重选的资源进行周期性预留；
    对所有所述周期性资源进行重选，对重选的资源进行周期性预留；
    对所述位于第i+1周期内的资源进行重选，允许发送端终端对所述周期性资源进行重选，允许发送端终端对重选的资源进行周期性预留。
  10. 根据权利要求1所述的资源选择方法，其中，所述资源抢占检测条件包括以下任一项：
    所述周期性资源的资源预留指示信息不包括非周期性资源预留指示；
    所述周期性资源的资源预留指示信息不包括非周期性资源预留指示和前P个周期发送的周期性资源预留指示，P为正整数；
    所述周期性资源的资源预留指示信息不包括非周期性资源预留指示和前Q个时间单元发送的周期性资源预留指示，Q为正整数。
  11. 根据权利要求1所述的资源选择方法，其中，若满足预设的资源选择触发条件，释放所述周期性资源和/或进行所述周期性资源的资源重选包括以下任一项：
    若旁链路授权SL grant的第i+1个周期的资源未被前A个周期发送的资源预留指示信息预留，释放该SL grant和/或进行该SL grant的资源重选，A为正整数；
    若SL grant的第i+1个周期的资源未被前M个时间单元发送的资源预留指示信息预留，释放该SL grant和/或进行该SL grant的资源重选，B为正整数。
  12. 根据权利要求1所述的资源选择方法，其中，所述资源排除条件包括以下任一项：
    对于位于资源选择窗口内的资源，在资源选择窗口或所述资源的前C个时间单元内检测到所述周期性资源预留指示信息对所述资源进行资源预留，且所述资源相关联的质量参数测量值大于对应的质量参数门限值，C为正整数；
    对于位于资源选择窗口内的资源，若检测到所述资源为周期性资源，且所述检测到的资源预留指示信息是在所述资源的前D个周期内，且所述资源相关联的质量参数测量值大于对应的质量参数门限值，D为正整数。
  13. 根据权利要求1所述的资源选择方法，其中，一个资源周期内资源的最大数量或实际数量为以下任一项：
    SL grant进行初始资源选择时所确定或选择的传输资源数量；
    协议约定的值或控制节点配置的值或控制节点预配置的值。
  14. 根据权利要求13所述的资源选择方法，其中，协议约定的值或控制节点配置的值或控制节点预配置的值包括以下任一项：
    协议约定的传输块TB的最大传输次数；
    资源池所配置的TB的最大传输次数；
    根据当前的固定码率CBR，资源池所配置的TB的最大传输次数；
    根据当前的CBR和TB优先级，资源池所配置的TB的最大传输次数。
  15. 根据权利要求13所述的资源选择方法，其中，一个资源周期内资源的最大数量或实际数量为以下任一项：
    SL grant一个周期内可用资源的数量；
    SL grant一个周期内预留的可用资源的数量；
    SL grant一个周期内预留的但已经释放掉的资源数量，与周期内可用资源的数量的总和；
    SL grant一个周期内预留的但已经释放掉的资源数量，与周期内预留的可用资源的数量的总和。
  16. 根据权利要求1所述的资源选择方法，还包括发送端终端从备选资源集合中选择资源，包括以下任一项：
    所述发送端终端只能选择时间不重叠的资源；
    所述发送端终端优先选择时间不重叠的资源；
    所述发送端终端允许选择时间不重叠的资源。
  17. 根据权利要求16所述的资源选择方法，其中，若所述发送端终端只能选择时间不重叠的资源，所述发送端终端执行以下任一项：
    在所述备选资源集合中选择资源之前，排除和已选资源在时间上重叠的 资源，再进行随机资源选择；
    在备选资源集合中反复进行随机资源选择，直到选择除和已选资源在时间上不重叠的资源。
  18. 根据权利要求16所述的资源选择方法，其中，所述发送端终端优先选择时间不重叠的资源包括：
    若当前的SL grant未选择任何资源或所选资源的数量小于预设的资源数量门限值，允许所述发送端终端选择时间上重叠的资源。
  19. 一种资源选择装置，包括：
    处理模块，用于对选择和/或预留的周期性资源执行以下任一项操作：
    若满足预设的重评估条件，对所述周期性资源进行资源选择重评估；
    若满足预设的资源抢占检测条件，所述周期性资源的资源抢占检测采用独立的参数；
    若满足预设的资源选择触发条件，释放所述周期性资源和/或进行所述周期性资源的资源重选；
    若满足预设的资源排除条件，将所述周期性资源排除出备选资源集合。
  20. 根据权利要求19所述的资源选择装置，其中，
    所述处理模块具体用于执行以下任一项：
    对所述周期性资源中位于第i+1周期内的资源，若在所述第i+1周期之前的N个周期，发送端终端未发送旁链路控制信息SCI去周期性预留所述位于第i+1周期内的资源，对所述资源进行资源选择重评估，其中，i，N为正整数；
    对所述周期性资源中位于第i+1周期内的资源，若在所述第i+1周期之前的M个时间单元，发送端终端未发送SCI去周期性预留所述位于第i+1周期内的资源，对所述资源进行资源选择重评估，M为正整数；
    对所述周期性资源中位于第i+1周期内的资源，在第i+1周期之前的L个周期中，没有被周期性预留信息指示过的资源的总数目达到预设值，对第i+1周期内的至少部分资源进行资源选择重评估，L为正整数。
  21. 根据权利要求19所述的资源选择装置，其中，所述处理模块具体用于在第i+1周期之前的第j周期对第i+1周期内的资源进行资源选择重评估， j为小于等于i的正整数。
  22. 根据权利要求19所述的资源选择装置，其中，所述资源抢占检测条件包括以下任一项：
    所述周期性资源的资源预留指示信息不包括非周期性资源预留指示；
    所述周期性资源的资源预留指示信息不包括非周期性资源预留指示和前P个周期发送的周期性资源预留指示，P为正整数；
    所述周期性资源的资源预留指示信息不包括非周期性资源预留指示和前Q个时间单元发送的周期性资源预留指示，Q为正整数。
  23. 根据权利要求19所述的资源选择装置，其中，所述处理模块具体用于执行以下任一项：
    若旁链路授权SL grant的第i+1个周期的资源未被前A个周期发送的资源预留指示信息预留，释放该SL grant和/或进行该SL grant的资源重选，A为正整数；
    若SL grant的第i+1个周期的资源未被前M个时间单元发送的资源预留指示信息预留，释放该SL grant和/或进行该SL grant的资源重选，B为正整数。
  24. 根据权利要求19所述的资源选择装置，其中，所述资源排除条件包括以下任一项：
    对于位于资源选择窗口内的资源，在资源选择窗口或所述资源的前C个时间单元内检测到所述周期性资源预留指示信息对所述资源进行资源预留，且所述资源相关联的质量参数测量值大于对应的质量参数门限值，C为正整数；
    对于位于资源选择窗口内的资源，若检测到所述资源为周期性资源，且所述检测到的资源预留指示信息是在所述资源的前D个周期内，且所述资源相关联的质量参数测量值大于对应的质量参数门限值，D为正整数。
  25. 一种电子设备，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1-18中任一项所述的方法的步骤。
  26. 一种可读存储介质，其中，所述可读存储介质上存储程序或指令，所 述程序或指令被处理器执行时实现如权利要求1-18中任一项所述的方法的步骤。
  27. 一种芯片，包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如权利要求1-18中任一项所述的方法。
  28. 一种计算机程序产品，所述计算机程序产品被存储在非易失的存储介质中，所述计算机程序产品被配置成被至少一个处理器执行以实现如权利要求1-18中任一项所述的方法。
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