WO2022206905A1 - 旁链路资源推荐的方法、装置、设备及可读存储介质 - Google Patents

旁链路资源推荐的方法、装置、设备及可读存储介质 Download PDF

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Publication number
WO2022206905A1
WO2022206905A1 PCT/CN2022/084509 CN2022084509W WO2022206905A1 WO 2022206905 A1 WO2022206905 A1 WO 2022206905A1 CN 2022084509 W CN2022084509 W CN 2022084509W WO 2022206905 A1 WO2022206905 A1 WO 2022206905A1
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resource
terminal
information
time
resource selection
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PCT/CN2022/084509
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English (en)
French (fr)
Inventor
王欢
纪子超
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维沃移动通信有限公司
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Priority to JP2023560742A priority Critical patent/JP2024511546A/ja
Priority to EP22779085.4A priority patent/EP4318984A4/en
Publication of WO2022206905A1 publication Critical patent/WO2022206905A1/zh
Priority to US18/479,074 priority patent/US20240031998A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/25Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/02Selection of wireless resources by user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • H04B17/327Received signal code power [RSCP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/382Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • H04L5/0062Avoidance of ingress interference, e.g. ham radio channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0205Traffic management, e.g. flow control or congestion control at the air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0231Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/40Resource management for direct mode communication, e.g. D2D or sidelink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/563Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/543Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria

Definitions

  • the present disclosure belongs to the field of communication technologies, and in particular relates to a method, apparatus, device and readable storage medium for recommending side link resources.
  • New Radio (NR) side link (or called secondary link, side link or side link) (Sidelink, SL)
  • NR New Radio
  • Sidelink, SL There are two resource allocation methods, one is based on base station scheduling (mode 1), and the other is based on base station scheduling (mode 1).
  • UE User Equipment
  • the sidelink resources used by the UE for data transmission are determined by the base station, and are notified to the receiving (receive, RX) UE through downlink signaling; for the resource allocation method independently selected by the UE, the UE is in the (pre) configured
  • the available transmission resources are selected from the 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 RX UE recommends resources to the transmitting (transport, TX) UE, and the TX UE uses the recommended resources for transmission; or, the UE responsible for coordination (coordination UE, Co-UE ) recommend resources to the TX UE
  • the TX UE utilizes the recommended resources for transmission.
  • the Co-UE can also be used as an RX UE, or the RX UE can be used as a Co-UE.
  • the relevant resource selection method only considers the transmission requirements of the RX UE (or Co-UE) side, which affects the reliability of the transmission on the recommended resources at the TX UE.
  • Embodiments of the present disclosure provide a method, apparatus, device, and readable storage medium for recommending sidelink resources, which can solve the problem of how to improve transmission reliability.
  • a method for recommending sidelink resources including:
  • the first terminal selects a sidelink resource, where the sidelink resource includes one or more of the following: a first resource and a second resource;
  • the first resource is recommended by the first terminal to the second terminal;
  • the second resource is used by the first terminal to send first information to the second terminal, where the first information is used by the first terminal to recommend the first resource to the second terminal.
  • a terminal including: a processor, a memory, and a program stored on the memory and executable on the processor, the program being executed by the processor as described in the first aspect steps of the method described.
  • a terminal including a processor and a communication interface, wherein the processor is configured to implement the steps of the method according to the first aspect when executed.
  • a readable storage medium is provided, and 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 method according to the first aspect are implemented.
  • a tenth aspect provides a computer program/program product, the computer program/program product being stored in a storage medium, the computer program/program product being executed by at least one processor to implement the processing according to the first aspect steps of the method.
  • a chip in an eleventh aspect, 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 first aspect method of processing.
  • a twelfth aspect provides a communication device configured to perform the method of processing as described in the first aspect.
  • the first terminal may recommend the first resource among the selected sidelink resources to the second terminal, so as to improve the reliability of the transmission by the second terminal using the recommended resource, and the first terminal may also recommend the second terminal to the second terminal.
  • the first information for recommending the first resource is sent, so that the resource recommendation can be performed between the first terminal and the second terminal in a timely manner.
  • FIG. 1 is a structural diagram of a wireless communication system to which an embodiment of the present disclosure can be applied;
  • FIG. 2 is one of the flowcharts of a method for recommending sidelink resources provided by an embodiment of the present disclosure
  • 3 is the second flowchart of the method for recommending sidelink resources provided by an embodiment of the present disclosure
  • FIG. 4 is a third flowchart of a method for recommending sidelink resources provided by an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of an apparatus for recommending sidelink resources provided by an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a terminal in an embodiment of the present disclosure.
  • NR SL resources There are two ways to allocate NR SL resources, one is based on base station scheduling (mode 1 (mode 1)), and the other is based on UE autonomous resource selection (mode 2 (mode 2)).
  • mode 1 mode 1
  • mode 2 mode 2
  • the resource allocation method scheduled by the base station 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.
  • TX UE first determines the resource selection window after the resource selection is triggered.
  • the lower boundary of the resource selection window is at the time T1 after the resource selection is triggered, and the upper boundary of the resource selection is at the time T2 after the trigger, where T1 is realized by the UE.
  • the mode is selected within a range of [T1_min, T1_max], T2 is the value selected by the UE implementation mode in the packet delay budget (PDB) transmitted in its transport block (Transport Block, TB), T2 is not earlier than T1.
  • PDB packet delay budget
  • the UE Before resource selection, the UE needs to determine the candidate resource set for resource selection, in which the number of candidate resources (for example, sub-channels) is controlled by the media access control (Media Access Control).
  • Control, MAC) layer determines, UE according to the estimated reference signal received power (Reference Signal Receiving Power, RSRP) measurement value on the resource in the resource selection window (for example, by monitoring the physical side link control channel (physical sidelink control channel, PSCCH) ) / physical sidelink shared channel (physical sidelink shared channel, PSSCH) estimate) and the corresponding RSRP threshold (threshold) to compare, if the RSRP is higher than the RSRP threshold, then the resource is excluded from the resource, can not be included in the alternative resources gather.
  • RSRP Reference Signal Receiving Power
  • the remaining resources in the resource selection window form a set of candidate resources.
  • the resources in the candidate resource set should account for not less than x% of the resources in the resource selection window. If it is less than x%, the RSRP threshold needs to be increased according to the step value (3dB), and then the resource exclusion operation is performed. , until no less than said x% of resources can be selected.
  • the RSRP comparison is related to the priority of the TB to be transmitted and the priority value demodulated on the PSCCH, and the specific process is not repeated.
  • the UE After the candidate resource set is determined, the UE randomly selects transmission resources in the candidate resource set, and the number of the selected resources is determined according to the decision of the MAC layer.
  • the steps 1) and 2) are performed at the physical layer, and the step 3) is performed at a higher layer (MAC layer).
  • the UE may reserve transmission resources for the next transmission during the current transmission.
  • the TX UE will perform resource reservation/indication for its allocated resources (reservation is divided into periodic reservation and aperiodic reservation), and the reserved resources are used for future PSCCH/PSSCH transmission.
  • Aperiodic reservation/indication can be implemented through the Time domain resource assignment (Time domain resource assignment) field in the Sidelink Control Information (SCI) (at least indicate 1 to 32 time slots (slot) resources),
  • SCI Sidelink Control Information
  • the reserved resources can at least be used for the transmission of the same TB.
  • Periodic reservation/indication can be implemented through the resource reservation period (Resource reservation period) field in the SCI, and the periodic resources reserved in the current period can be used for the transmission of the next TB.
  • resource reservation period Resource reservation period
  • a certain frequency domain resource appears periodically, which may be referred to as a periodic resource of the resource.
  • the resource pre-emption mechanism is supported, and a brief description of the mechanism is as follows.
  • Said traffic priority and said SL-RSRP threshold are determined by TB transmission on said resource.
  • Mode 2 resource allocation mode a resource re-evaluation mechanism is supported, which is briefly described below. At least for the resources that the UE has selected but not reserved (other forms of resources are not excluded, because the space will not go into details), if the resources overlap (partially overlap) with the resources reserved/selected by other UEs, if the UE is in the relevant resources When the SL-RSRP measurement value on the UE is greater than a certain associated SL-RSRP threshold, the UE will trigger resource reselection.
  • Terminal A decides a resource set, and UE-A notifies the resource set to terminal B (UE-B, UE-B).
  • the resource set notified by UE-A can be considered in the mode 2 resource selection.
  • SL transmission/reception will collide with UL transmission.
  • the lower priority party SL/UL
  • the standard defines priority determination rules, and the final SL transmission/reception and UL transmission are determined according to the SL priority index (priority index) and/or UL priority index. priority.
  • first, second, and the like in the description and claims of the present disclosure are used to distinguish between similar objects, and are not used to describe an assigned order or precedence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present disclosure can be practiced in sequences other than those illustrated or described herein, and that "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • 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
  • system and “network” are often used interchangeably in embodiments of the present disclosure, and the described techniques may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but the techniques are also applicable to applications other than NR system applications, such as 6th generation (6th generation ) Generation, 6G) communication system.
  • 6th generation 6th generation
  • 6G 6th generation
  • 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) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, headphones, glasses, etc. It should be noted that, the embodiment of the present disclosure does not limit the specific type of the terminal 11 .
  • the network side device 12 may be a base station or a core network, where the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service set (BasicServiceSet, BSS), Extended Service Set (ExtendedServiceSet, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Transmitting Receiving Point Point, TRP), radio access network 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 the specified technical vocabulary. It should be noted that in the embodiments of the present disclosure, only Take the base station in the NR system as an example, but the specific type of the base station is not limited.
  • a method, apparatus, device, and readable storage medium for recommending a sidelink resource provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.
  • the execution body of the method may be a first terminal, and the specific steps include: Step 201 .
  • Step 201 The first terminal selects sidelink resources, where the sidelink resources include one or more of the following: a first resource and a second resource;
  • the second resource is used by the first terminal to send first information to the second terminal, and the first information is used by the first terminal to recommend the first resource to the second terminal.
  • Recommending the first resource can also be interpreted as allocating the first resource or scheduling the first resource.
  • the above-mentioned sidelink resources may also be referred to as transmission resources.
  • the above-mentioned first terminal may also be called Co-UE, and the second terminal may also be called Tx UE.
  • the above-mentioned first information may also be referred to as resource recommendation signaling
  • the first resource may also be referred to as recommended resource
  • the second resource may also be referred to as resource recommendation signaling transmission resource.
  • the method further includes: step 202 .
  • Step 202 The first terminal receives second information, where the second information is used to trigger the first terminal to select a sidelink resource, or the second information is used to trigger the first terminal to send to the first terminal.
  • the second terminal recommends the first resource.
  • the above-mentioned second information may also be referred to as trigger signaling.
  • the method further includes: step 203 .
  • Step 203 The first terminal sends the first information to the first terminal through the second resource.
  • the step of selecting a sidelink resource by the first terminal includes:
  • the first terminal selects the sidelink resources from third resources, the third resources being resources whose interference is lower than a threshold.
  • the above-mentioned third resource may also be referred to as a low-interference resource.
  • the first terminal selects the first resource from the first type of the third resource, and the first terminal selects the first resource from the second type of the third resource. Select the second resource among the three resources, that is, there are two kinds of third resources in this scenario.
  • the first terminal selects the first resource and the second resource from one type of third resource, that is, in this scenario, the third resource has one type of .
  • the method before the step of selecting the sidelink resource from the third resource by the first terminal, the method further includes:
  • the first terminal determines (or identifies) the third resource.
  • the step of determining the third resource by the first terminal includes:
  • the first terminal determines the third resource within the first resource selection window.
  • the first terminal identifies X% of the third resources (or low-interference resources) within the resource selection window according to the resource selection process of mode 2.
  • the step of determining the third resource by the first terminal in the first resource selection window includes:
  • the first terminal determines the third resource in the first resource selection window according to the information agreed in the protocol, the information configured by the control node, or the preconfigured information.
  • the first terminal does not need to determine (or identify) the third resource.
  • the above-mentioned control node may include: a network side device, a base station, a head node, a UE, an RX UE, or a relay (Relay) UE.
  • the step of selecting, by the first terminal, the sidelink resources from the third resources includes: the first terminal determining a second resource selection window; The sidelink resource is selected from the third resource (or low-interference resource) in the second resource selection window.
  • the first terminal performs the steps according to (1) first time, (2) PDB (for example, remaining PDB), (3) priority (Priority) information, (4) child One or more of the number of channels (sub-channels) and (5) the number of retransmissions, and select the side link resource; wherein, the first time is the trigger time for the first terminal to select the side link resource (or called the trigger moment).
  • the first time can also be the time when the first terminal receives the second information, or the sum of the time when the first terminal receives the second information and the offset value, or the time determined by the first terminal autonomously.
  • the first terminal selects the sidelink resource according to the second time
  • the second time includes at least one or more of the following:
  • the first terminal is based on (1) a third time, (2) a PDB (eg, remaining PDB), (3) priority (Priority) information, (4) a child One or more of the number of sub-channels and (5) the number of retransmissions to determine the third resource; wherein, the third time is the trigger time (or called the first terminal to select the sidelink resource) is the trigger time).
  • a PDB eg, remaining PDB
  • priority Priority
  • the third time can also be the time when the first terminal receives the second information, or the sum of the time when the first terminal receives the second information and the offset value, or the time determined by the first terminal autonomously.
  • the first terminal determines the third resource according to the fourth time
  • the fourth time includes at least one or more of the following:
  • the data packet delay budget is agreed in a protocol, configured or pre-configured by a control node, dynamically instructed by a control node, between terminals (for example, between a Co-UE and a TX UE) ) negotiated or the data packet delay budget of the TB to be transmitted by the second terminal;
  • the priority information is agreed in a protocol, configured or pre-configured by a control node, dynamically indicated by a control node, and negotiated between terminals (eg, between a Co-UE and a TX UE) , or the priority information of the TB to be transmitted by the second terminal;
  • the number of sub-channels is specified in a protocol, configured or pre-configured by a control node, dynamically indicated by a control node, and between terminals (for example, between Co-UE and TX UE) Negotiated or the number of sub-channels of the TB to be transmitted by the second terminal;
  • the number of retransmissions is agreed in a protocol, configured by a control node or pre-configured, dynamically indicated by a control node, and negotiated between terminals (for example, between a Co-UE and a TX UE) , or the number of retransmissions of the TB to be transmitted by the second terminal.
  • the priority of the first information is also used for priority judgment between the sending or receiving of the first information and other transmissions; wherein, the other transmissions include NR SL sending and NR SL receiving , NR uplink (UpLink, UL) transmission, at least one of Evolved Universal Terrestrial Radio Access (Evolved Universal Terrestrial Radio Access, EUTRA) SL transmission and EUTRA SL reception.
  • the other transmissions include NR SL sending and NR SL receiving , NR uplink (UpLink, UL) transmission, at least one of Evolved Universal Terrestrial Radio Access (Evolved Universal Terrestrial Radio Access, EUTRA) SL transmission and EUTRA SL reception.
  • the priority information of the first information can be used between the sending of the first information (equivalent to resource recommendation signaling) and the UL sending.
  • UL/SL priority prioritization
  • UL/SL prioritization can be used for UL/SL prioritization between HARQ feedback reception and UL transmission corresponding to the first information (equivalent to resource recommendation signaling)'.
  • the priority information of the first information can be used for UL/SL between reception of the first information (equivalent to resource recommendation signaling) and UL transmission prioritization, or can be used for UL/SL prioritization between HARQ feedback transmission and UL transmission corresponding to the first information (equivalent to resource recommendation signaling)'.
  • the receiving and sending of the first information may adopt different priority determination methods.
  • the step of selecting the sidelink resource by the first terminal includes:
  • the resource selection mechanism includes one or more of the following:
  • a first mechanism the first mechanism includes: the first resource adopts a first resource selection process, and the second resource adopts a second resource selection process;
  • the second mechanism includes: the first resource uses a third resource selection window (or a resource selection window for recommended resources), and the second resource uses a fourth resource selection window (or referred to as the selection window for resource recommendation signaling).
  • the resource selection mechanism is agreed upon by a protocol, configured by a control node, or preconfigured.
  • the first resource selection process and the second resource selection process satisfy one of the following conditions:
  • the first resource selection process and the second resource selection process are executed separately; that is, the first resource selection process and the second resource selection process are related and independent. For example, the first resource selection process is performed first, and then the second resource selection process is performed, or the second resource selection process is performed first, and then the second resource selection process is performed, or the first resource selection process and the second resource selection process are performed simultaneously. Process, that is, when selecting the first resource and the second resource, the sequence is not specified.
  • the first resource selection process or the second resource selection process includes at least one of a physical layer resource selection process and a MAC layer resource selection process.
  • the physical layer processes for resource selection of the first resource and the second resource are independent of each other, and the MAC layer at least guarantees the preset relationship between the first resource and the second resource when selecting the final transmission resource (for example, the timing relationship/time interval). limit).
  • the first resource selection process and the second resource selection process share a resource selection process. That is, the first resource selection process and the second resource selection process are interdependent.
  • the resource selection process includes at least one of a physical layer resource selection process and a MAC layer resource selection process.
  • the first resource selection process and the second resource selection process are performed separately, including at least one or more of the following:
  • one of the resource selection procedures (including the physical layer and the MAC layer) of the first resource and the second resource is executed, and the MAC layer selects one of the resources and then triggers another resource selection.
  • the MAC layer selects one of the resources, the MAC layer notifies the physical layer of the selected first resource and the second resource. Resource, physical layer and MAC layer perform another process according to the notified resource location.
  • the method further includes:
  • the first terminal aborts the first resource selection process, or discards the selected resource
  • the first terminal aborts the second resource selection process, or discards the selected resource.
  • the Co-UE aborts the resource selection process/discards the selected first resource. resource or secondary resource.
  • the third resource selection window and the fourth resource selection window are agreed upon by a protocol, configured by a control node, or preconfigured.
  • a protocol agreement, a control node configuration or a pre-configured way of determining the selection window of the first resource and the second resource is used to match the selection mechanism.
  • the third resource selection window and the fourth resource selection window satisfy one of the following:
  • the third resource selection window and the fourth resource selection window are different resource selection windows
  • the fourth resource selection window is determined according to the position of the first resource selected by the third resource selection window, or the third resource selection window is determined according to the position of the second resource selected by the fourth resource selection window.
  • the third resource selection window is determined first, and then the fourth resource selection window is determined according to the position of the selected first resource; or, the fourth resource selection window is determined first, and then determined according to the position of the selected second resource.
  • the third resource selection window; or, the third resource selection window and the fourth resource selection window are determined, and their sequence is not specified.
  • the time interval between the first resource and the second resource is determined according to one or more of the following:
  • the minimum time interval between the first resource and the second resource is notified by the TX UE to the Co-UE; for example, in the form of the TX UE capability.
  • the first information can indicate the first resource.
  • the time interval between the first resource and the second resource needs to ensure that the first information can indicate the selected first resource.
  • the time interval between the first resource and the second resource may be: the interval between the last second resource and the first first resource; or the time interval between the first resource and the second resource It may be: the time interval between N time units and the first first resource after the position where the first information is successfully transmitted (eg, an ACK is received).
  • the first information includes one or more of the following:
  • TDRA Time Domain Resource Assignment
  • FDRA Frequency Domain Resource Assignment
  • the first terminal may recommend the first resource among the selected sidelink resources to the second terminal, so as to improve the reliability of the transmission by the second terminal using the recommended resource, and the first terminal may also recommend the second terminal to the second terminal.
  • the first information for recommending the first resource is sent, so that the resource recommendation can be performed between the first terminal and the second terminal in a timely manner.
  • Embodiments of the present disclosure will be described below with reference to Embodiment 1, Embodiment 2 and Embodiment 3.
  • the recommended resource is equivalent to the first resource
  • the transmission resource of the resource recommendation signaling is equivalent to the second resource
  • the resource recommendation signaling is equivalent to the first information
  • the trigger signaling is equivalent to the second information
  • the Co-UE is equivalent to the second resource.
  • the TX UE is equivalent to the second terminal.
  • Resource selection for recommended resources includes one or more of the following:
  • the PDB can be counted from the time when the trigger signaling is received
  • the PDB is a PDB agreed by a protocol, configured or dynamically indicated by a control node, pre-configured by a control node, or negotiated between UEs (between TX UEs and Co-UEs), or a PDB of a TB to be transmitted by a TX UE.
  • control node includes: a network node, a base station, a head node UE, an RX UE, and a relay UE.
  • the priority information is agreed in a protocol, configured or dynamically indicated by the control node, pre-configured by the control node, negotiated between UEs (between TX UEs and Co-UEs), or priority information of the TB to be transmitted on the TX UE side.
  • the sub-channel is agreed in a protocol, configured or dynamically indicated by the control node, pre-configured by the control node, negotiated between UEs (between TX UE and Co-UE), or TB to be transmitted on the TX UE side. Number of sub-channels.
  • the number of retransmissions is agreed in the protocol, configured or dynamically indicated by the control node, pre-configured by the control node, negotiated between UEs (between the TX UE and the Co-UE), or the TB to be transmitted on the TX UE side. Number of retransmissions.
  • the selection of transmission resources for resource recommendation signaling includes one or more of the following:
  • the PDB can be counted from the time when the trigger signaling is received
  • the PDB is agreed in the protocol, configured or dynamically indicated by the control node, pre-configured by the control node, or negotiated between UEs (between TX UE and Co-UE).
  • the PDB is related to the PDB of the TB to be transmitted or the PDB of the recommended resource selection.
  • the protocol stipulates, configures the PDB of each to-be-transmitted TB or the PDB for recommended resource selection corresponds to a PDB for resource recommendation signaling;
  • the priority information is agreed in a protocol, configured or dynamically indicated by the control node, pre-configured by the control node, negotiated between UEs (between TX UEs and Co-UEs), or priority information of the TB to be transmitted on the TX UE side.
  • the trigger signaling is carried by the MAC CE, and the priority of the MAC CE may be configured/pre-configured.
  • the priority of the PSCCH/PSSCH is one of the following:
  • the sub-channel is agreed in a protocol, configured or dynamically indicated by the control node, pre-configured by the control node, negotiated between UEs (between TX UE and Co-UE), or TB to be transmitted on the TX UE side.
  • Number of sub-channels For example occupy a sub-channel.
  • the number of retransmissions is agreed in the protocol, configured or dynamically indicated by the control node, pre-configured, and negotiated between UEs (between TX UEs and Co-UEs). For example only transmit once.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the Co-UE identifies low-interference resources/selects transmission resources according to processing time/signaling transmission time.
  • the processing time/signaling transmission time includes at least one or more of the following restrictions, which are limited to a maximum value, a minimum value, a fixed value or a real value:
  • NO can be set by the first processing time limited
  • the above two kinds of time may be defined separately, namely, the processing time N1' of the recommended resource selection and the transmission preparation time N1" of the resource recommendation signaling.
  • N1, N1' or N1" can be processed by the second processing time limit.
  • the value of N2 is 1 slot.
  • the above two kinds of time can be defined separately, namely, the demodulation time N3' of the resource recommendation signaling and the transmission preparation time N3" of the TX UE side.
  • N3' can be limit
  • N3, N3' or N3" may be the sum of the first processing time and the second processing time limit
  • N3, N3' or N3' can also be a real fixed value, depending on the capabilities of the TX UE, including demodulation of resource recommendation signaling, preparation of PSCCH/PSSCH transmission, and TX-RX/RX-TX conversion etc. at least one; this value can be notified to the coordinating UE
  • the UE determines the resource selection window of the recommended resource: n+(X1, X2)/[X1, X2].
  • Resource selection trigger time n If the Co-UE receives the trigger signaling at time n, the recommended resource should be selected after n+N0+N1+N2+N3.
  • X1_min is determined by at least one or more of the following:
  • X1_min is determined by one or more (sum) of said N1...N3 (or corresponding maximum/minimum values).
  • the X1_min N, and when N is 0, the method for determining X1_min is equivalent to the method for determining T1_min in the related art (the protocol can specify the value of N according to N1...N3, and N can be a non-zero value).
  • X1_min is configured/preconfigured by the control node.
  • X1_min Y
  • Y value can be agreed/configured according to the resource selection window of the resource recommendation signaling.
  • X1_min is determined by at least the location of the resource recommendation signaling, assuming that the resource location of the resource recommendation signaling is at time y (optional, if there are multiple corresponding resource recommendation signaling, time y is the last resource recommendation signaling) s position).
  • X1_min y
  • X1_max is determined by at least one or more of the following:
  • X1_max is determined according to one or more (sum) of any X1_min and N1...N3 (or the corresponding maximum/minimum value) of the above option 1/2/3/4;
  • X1_max N0+N1+X1_min (N1...N3 can be corresponding maximum/minimum values);
  • X1_max (or X1_max-X1_min) is agreed by the protocol
  • X1_max (or X1_max-X1_min) is configured/preconfigured by the control node;
  • X1_max is determined by at least the location of the resource recommendation signaling, assuming that the resource location of the resource recommendation signaling is at time y (optional, if there are multiple corresponding resource recommendation signaling, time y is the last resource recommendation signaling) s position);
  • X1 can also be determined by a method of determining X1_min/X1_max.
  • (3) UE determines the resource selection window of resource indication signaling: n+(Y1, Y2)/[Y1, Y2]
  • Resource selection trigger time n if the Co-UE receives the trigger signaling at time n, the resource recommendation signaling transmission resource is selected after n+N0+N1;
  • the determination method of Y1_min/Y1_max is equivalent to the determination method of T1_min in the related art
  • Y2_max is PDB (this PDB is related to resource indication signaling resource selection, refer to Embodiment 1)
  • the PDB value may be agreed in the protocol/configured by the control node/preconfigured/determined by negotiation between UEs.
  • Y2_max is the value agreed/configured/preconfigured by the protocol
  • Y2_max is determined by at least the location of the recommended resource, assuming that the resource location of the recommended resource is at time x (optional, if there are multiple corresponding recommended resources, time x is the location of the first recommended resource);
  • delta is a value agreed/configured/preconfigured by the protocol, or delta is at least determined by the N1...N3 (or corresponding One or more (sum) of max/min) are determined.
  • the determination method of Z1 is the same as X1/Y1
  • the determination method of Z2 is the same as X2/Y2
  • the resource selection when the resource selection is performed in the window, the resource selection may be performed according to the number of sub-channels of the 'recommended resource'.
  • the first several (/first) resources are used to transmit resource recommendation signaling and it can be limited that only one subchannel is used for transmission of 'resource recommendation signaling'.
  • an embodiment of the present disclosure provides an apparatus for recommending sidelink resources, which is applied to a first terminal.
  • the apparatus 500 includes:
  • a selection module 501 configured to select a sidelink resource, where the sidelink resource includes one or more of the following: a first resource and a second resource;
  • the first resource is recommended by the first terminal to the second terminal;
  • the second resource is used by the first terminal to send first information to the second terminal, where the first information is used by the first terminal to recommend the first resource to the second terminal.
  • the apparatus 500 further includes:
  • a first receiving module configured to receive second information, where the second information is used to trigger the first terminal to select the sidelink resource, or the second information is used to trigger the first terminal to send the The second terminal recommends the first resource.
  • the apparatus 500 further includes:
  • a first sending module configured to send the first information to the first terminal through the second resource.
  • the selection module 501 is further configured to: the first terminal selects the sidelink resource from a third resource, where the third resource is a resource whose interference is lower than a threshold.
  • the apparatus 500 further includes:
  • a determination module configured to determine the third resource.
  • the determining module is further configured to: determine the third resource within the first resource selection window.
  • the determining module is further configured to: the first terminal determines the selected resource in the first resource selection window according to the information agreed in the protocol, the information configured by the control node, or the preconfigured information. the third resource.
  • the selection module 501 is further configured to: determine a second resource selection window; and select the sidelink resource from the third resources in the second resource selection window.
  • the selection module 501 is further configured to: the first terminal selects the first terminal according to one or more of the first time, PDB, priority information, the number of sub-channels, and the number of retransmissions the side link resource;
  • the first time is a trigger time for the first terminal to select a side link resource.
  • the selection module 501 is further configured to: select the side link resource according to the second time;
  • the second time includes at least one or more of the following:
  • the transmission preparation time of the second terminal is the transmission preparation time of the second terminal.
  • the determining module is further configured to: determine the said third resource
  • the third time is a trigger time for the first terminal to select the sidelink resource.
  • the determining module is further configured to: determine the third resource according to a fourth time;
  • the fourth time includes one or more of the following:
  • the transmission preparation time of the second terminal is the transmission preparation time of the second terminal.
  • the data packet delay budget is agreed in a protocol, configured or pre-configured by a control node, dynamically instructed by a control node, negotiated between terminals, or waiting for the second terminal. Packet delay budget for transmitting TB;
  • the priority information is agreed by the protocol, configured or pre-configured by the control node, dynamically indicated by the control node, negotiated between terminals, or priority information of the TB to be transmitted by the second terminal;
  • the number of sub-channels is agreed by the protocol, configured or pre-configured by the control node, dynamically indicated by the control node, negotiated between terminals, or the number of sub-channels of the TB to be transmitted by the second terminal;
  • the number of retransmissions is agreed by the protocol, configured by the control node or pre-configured, dynamically indicated by the control node, negotiated between terminals, or the number of retransmissions of the TB to be transmitted by the second terminal.
  • the priority of the first information is also used for priority judgment between the sending or receiving of the first information and other transmissions; wherein the other transmissions include: a new air interface NR side At least one of link SL transmission, NR SL reception, NR uplink UL transmission, Evolved Universal Terrestrial Radio Access EUTRA SL transmission and EUTRA SL reception.
  • the selection module 501 is further configured to: select the sidelink resource according to a resource selection mechanism
  • the resource selection mechanism includes one or more of the following:
  • a first mechanism includes: the first resource adopts a first resource selection process, and the second resource adopts a second resource selection process;
  • the second mechanism includes: the first resource adopts a third resource selection window, and the second resource adopts a fourth resource selection window.
  • the resource selection mechanism is agreed upon by a protocol, configured by a control node, or preconfigured.
  • the first resource selection process and the second resource selection process are performed separately;
  • the first resource selection process and the second resource selection process share a resource selection process.
  • the first resource selection process and the second resource selection process are performed separately, including at least one or more of the following:
  • the first resource is selected according to the location of the second resource selected by the second source selection process.
  • the apparatus 500 further includes: a processing module, configured to:
  • the first resource selection process is aborted, or the selected resource is discarded;
  • the second resource selection process is terminated, or the selected resource is discarded.
  • the third resource selection window and the fourth resource selection window are agreed upon by a protocol, configured by a control node, or preconfigured.
  • the third resource selection window and the fourth resource selection window satisfy one of the following:
  • the third resource selection window and the fourth resource selection window are different resource selection windows
  • the third resource selection window and the fourth resource selection window share a resource selection window.
  • the third resource selection window and the fourth resource selection window are different resource selection windows, including:
  • the fourth resource selection window is determined according to the position of the first resource selected by the third resource selection window, or the third resource selection window is determined according to the position of the second resource selected by the fourth resource selection window.
  • the time interval between the first resource and the second resource is determined according to one or more of the following:
  • the first information can indicate the first resource.
  • the first information includes one or more of the following:
  • each TDRA domain or FDRA domain corresponds to the position of a starting subchannel
  • the apparatuses provided in the embodiments of the present disclosure can implement each process implemented by the method embodiments shown in FIG. 2 to FIG. 4 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • An embodiment of the present disclosure further provides a terminal, including a processor and a communication interface, where the processor is configured to select a sidelink resource, where the sidelink resource includes one or more of the following: a first resource and a second resource; wherein, The first resource is recommended by the first terminal to the second terminal; the second resource is used for the first terminal to send first information to the second terminal, and the first information is used for the The first terminal recommends the first resource to the second terminal.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 6 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present disclosure.
  • the terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, and a display unit 606 , the user input unit 607 , the interface unit 608 , the memory 609 , and at least some of the components in the processor 610 and the like.
  • the terminal 600 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 610 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 6 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 604 may include a graphics processor (Graphics Processing Unit, GPU) 4041 and a microphone 6042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 607 includes a touch panel 6071 and other input devices 6072 .
  • the touch panel 6071 is also called a touch screen.
  • the touch panel 6071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 4072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.
  • the radio frequency unit 601 receives the downlink data from the network side device, and then processes it to the processor 610; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 601 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.
  • Memory 609 may be used to store software programs or instructions as well as various data.
  • the memory 609 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 609 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 610 may include one or more processing units; optionally, the processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 610.
  • the terminal provided by the embodiments of the present disclosure can implement each process implemented by the method embodiments shown in FIG. 2 to FIG. 4 , and achieve the same technical effect. To avoid repetition, details are not described here.
  • Embodiments of the present disclosure also provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the steps shown in FIG. 2 to FIG. 4 . the steps of the method of treatment described.
  • An embodiment of the present disclosure further 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, each process of the method embodiment shown in FIG. 2 to FIG. 4 is implemented. , and can achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • 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 disclosure 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 used for running a program or an instruction to implement the above-mentioned FIG. 2 to FIG. 4 .
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used for running a program or an instruction to implement the above-mentioned FIG. 2 to FIG. 4 .
  • the chip mentioned in the embodiments of the present disclosure may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • An embodiment of the present disclosure further provides a chip, which is configured to perform each process of the method embodiments shown in FIG. 2 to FIG. 4 above, and can achieve the same technical effect. To avoid repetition, details are not described here.

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Abstract

本公开公开了一种旁链路资源推荐的方法、装置、设备及可读存储介质,属于通信技术领域,本公开实施例的旁链路资源推荐的方法包括:第一终端选择旁链路资源,所述旁链路资源包括以下一项或多项:第一资源和第二资源;其中,所述第二资源用于所述第一终端向所述第二终端发送第一信息,所述第一信息用于所述第一终端向所述第二终端推荐所述第一资源。

Description

旁链路资源推荐的方法、装置、设备及可读存储介质
相关申请的交叉引用
本申请主张在2021年04月01日在中国提交的中国专利申请No.202110357794.7的优先权,其全部内容通过引用包含于此。
技术领域
本公开属于通信技术领域,具体涉及一种旁链路资源推荐的方法、装置、设备及可读存储介质。
背景技术
新空口(New Radio,NR)旁链路(或称为副链路、侧链路或者边链路)(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(比如用户设备(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接收(receive,RX)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,再从所述资源集合中随机选择用于传输的资源。
对于SL资源选择的增强方案,示例性的,可以考虑RX UE向发送(transport,TX)UE推荐资源,TX UE利用所述推荐资源进行传输;或者,负责协调的UE(coordination UE,Co-UE)向TX UE推荐资源TX UE利用所述推荐资源进行传输。其中Co-UE也可以作为是RX UE,或者说RX UE可以作为Co-UE。
而相关资源选择方法仅考虑RX UE(或Co-UE)侧的传输需求,影响了在TX UE在推荐资源上传输的可靠性。
发明内容
本公开实施例提供一种旁链路资源推荐的方法、装置、设备及可读存储 介质,能够解决如何能够提高传输可靠性的问题。
第一方面,提供一种旁链路资源推荐的方法,包括:
第一终端选择旁链路资源,所述旁链路资源包括以下一项或多项:第一资源和第二资源;
其中,所述第一资源是所述第一终端推荐给第二终端的;
所述第二资源用于所述第一终端向所述第二终端发送第一信息,所述第一信息用于所述第一终端向所述第二终端推荐所述第一资源。
第五方面,提供一种终端,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,所述程序被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种终端,包括处理器及通信接口,其中,所述处理器用于执行时实现如第一方面所述的方法的步骤。
第九方面,提供一种可读存储介质,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第一方面所述的方法的步骤。
第十方面,提供一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的处理的方法的步骤。
第十一方面,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处理的方法。
第十二方面,提供了一种通信设备,被配置为执行如第一方面所述的处理的方法。
在本公开实施例中,第一终端可以将选择的旁链路资源中的第一资源推荐给第二终端,提高第二终端利用推荐资源传输的可靠性,第一终端也可以向第二终端发送用于推荐第一资源的第一信息,使得资源推荐能够适时的在第一终端和第二终端间进行。
附图说明
图1是本公开实施例可应用的一种无线通信系统的结构图;
图2是本公开实施例提供的旁链路资源推荐的方法的流程图之一;
图3是本公开实施例提供的旁链路资源推荐的方法的流程图之二;
图4是本公开实施例提供的旁链路资源推荐的方法的流程图之三;
图5是本公开实施例提供的旁链路资源推荐装置的示意图;
图6是本公开实施例中终端的示意图。
具体实施方式
为了便于理解本公开的实施方式,下面先介绍以下技术点:
一、关于NR SL资源分配/选择的介绍:
NR SL资源分配方式有两种,一种基于基站调度(模式1(mode 1)),另一种基于UE自主资源选择(模式2(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,再从所述资源集合中随机选择用于传输的资源。
对于mode 2,具体的工作流程如下:
1)TX UE在资源选择被触发后,首先确定资源选择窗口,资源选择窗口的下边界在资源选择触发后的T1时间,资源选择的上边界在触发后的T2时间,其中T1是UE实现的方式在一个[T1_min,T1_max]范围内选择的,T2是UE实现的方式在其传输块(Transport Block,TB)传输的数据包时延预算(packet delay budget,PDB)内选择的值,T2不早于T1。
2)UE在资源选择的之前,需要确定资源选择的备选资源结合(candidate resource set),其中备选资源(比如,子信道(sub-channel))的个数由媒体接入控制(Medio Access Control,MAC)层确定,UE根据资源选择窗口内的资源上预估的参考信号接收功率(Reference Signal Receiving Power,RSRP)测量值(例如通过监听物理副链路控制信道(physical sidelink control channel,PSCCH)/物理副链路共享信道(physical sidelink shared channel,PSSCH)预估)与相应的RSRP阈值(threshold)做对比,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x%,如果少于x%,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。另外,所述RSRP对比与待传输TB的优先级(priority)以及PSCCH上解调的priority值相关,具体过程不赘述。
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,所选资源的个数根据MAC层的决策确定。
所述步骤1)和2)在物理层执行,所述步骤3)在高层(MAC层)执行。另外,UE在本次传输可以为接下来的传输预留传输资源。
二、关于Sidelink的资源预留/指示的介绍:
在NR SL中,TX UE会对其分配的资源进行资源预留/指示(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/PSSCH传输所用。
非周期预留/指示可以通过副链路控制信息(Sidelink Control Information,SCI)中的时域资源分配(Time domain resource assignment)域实现(至少指示1~32时隙(slot)的资源),预留的资源至少可以用作同一个TB的传输。
周期预留/指示可以通过SCI中的资源预留期(Resource reservation period)域实现,当前周期预留的周期性资源可以用作下一个TB的传输。此处,某个频域资源周期性出现,可称为该资源的周期性资源。
三、关于SL资源抢占(Resource pre-emption)的介绍:
在Mode 2资源分配模式中,资源pre-emption机制被支持,该机制的简要描述如下。一个UE已经预留/选择的资源和其它具有更高优先级业务的UE所预留/选择的资源重叠(部分重叠),如果该UE在相关资源上的SL-RSRP测量值大于某个相关的(associated)SL-RSRP门限值时,该UE会触发资源的重新选择。所述的业务优先级和所述的SL-RSRP门限由在所述资源上的TB传输确定。
四、关于SL资源重评估(Resource re-evaluation)的介绍:
在Mode 2资源分配模式中,资源重评估机制被支持,该机制的简要描述如下。至少对于UE已选择但未预留的资源(不排除其他形式的资源,由于篇幅不赘述),如果该资源和其它UE所预留/选择的资源重叠(部分重叠), 如果该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。
五、关于SL混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)往返时延(Round-Trip Time,RTT)限制的介绍:
至少针对mode 2,为了保证PSSCH重传的资源出现在TX UE解调反馈信息之后,规定任意两次选择的PSSCH传输资源间的时间间隔需要大于HARQ RTT时间,以保证传输的效率和可靠性。
六、关于NR sidelink资源分配/选择的增强方案的介绍:
终端A(UE-A)决定一个资源集合,UE-A将资源集合通知给终端B(UE-B,UE-B)在进行mode 2资源选择可以考虑UE-A所通知的资源集合。
七、关于上行链路(UpLink,UL)/SL优先级(prioritization)的介绍:
SL发送/接收会和UL发送发生冲突。在一些应用场景,如果发生冲突,低优先级的一方(SL/UL)要做丢弃/降功率操作。其中,为了判断SL发送/接收和UL发送间的优先级,标准定义了优先级判定规则,根据SL优先级索引(priority index)和/或UL priority index来确定最终的SL发送/接收和UL发送间优先级。
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本公开保护的范围。
本公开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,而不用于描述指定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本公开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,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和”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。
值得指出的是,本公开实施例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,还可用 于其他无线通信系统,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。本公开实施例中的术语“系统”和“网络”常被可互换地使用,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。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6 th Generation,6G)通信系统。
参见图1,图中示出本公开实施例可应用的一种无线通信系统的结构图。无线通信系统包括终端11、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)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备(VUE)、行人终端(PUE)等终端侧设备,可穿戴式设备包括:智能手表、手环、耳机、眼镜等。需要说明的是,在本公开实施例并不限定终端11的具体类型。
网络侧设备12可以是基站或核心网,其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base TransceiverStation,BTS)、无线电基站、无线电收发机、基本服务集(BasicServiceSet,BSS)、扩展服务集(ExtendedServiceSet,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、发送接收点(Transmitting Receiving Point,TRP)、无线接入网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,所述基站不限于指定技术词汇,需要说明的是,在本公开实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
下面结合附图,通过一些实施例及其应用场景对本公开实施例提供的一种一种旁链路资源推荐方法方法、装置、设备及可读存储介质进行详细地说明。
参见图2,本公开提供一种旁链路资源推荐方法,该方法的执行主体可以是第一终端,具体步骤包括:步骤201。
步骤201:第一终端选择旁链路资源,所述旁链路资源包括以下一项或多项:第一资源和第二资源;
其中,所述第二资源用于所述第一终端向所述第二终端发送第一信息,所述第一信息用于所述第一终端向所述第二终端推荐所述第一资源。推荐第一资源也可以解读为分配第一资源或调度第一资源。
上述旁链路资源也可以称为传输资源。
上述第一终端也可以称为Co-UE,第二终端也可以称为Tx UE。
上述第一信息也可以称为资源推荐信令,第一资源也可以称为推荐资源,,用于第二终端传输待传输TB,第二资源也可以称为资源推荐信令传输资源。
在本公开的一种实施方式中,参见图3,在步骤201之前,所述方法还包括:步骤202。
步骤202:所述第一终端接收第二信息,所述第二信息用于触发所述第一终端选择旁链路资源,或者所述第二信息用于触发所述第一终端向所述第二终端推荐所述第一资源。
上述第二信息也可以称为触发信令。
在本公开的一种实施方式中,参见图4,在步骤201之后,所述方法还包括:步骤203。
步骤203:所述第一终端通过所述第二资源向所述第一终端发送第一信息。
在本公开的一种实施方式中,所述第一终端选择旁链路资源的步骤,包括:
所述第一终端从第三资源中选择所述旁链路资源,所述第三资源是干扰低于阈值的资源。
上述第三资源也可以称为低干扰资源。
需要说明的是,在第一资源和第二资源的选择流程是不同的资源选择流程的情况,第一终端从第一种第三资源中选择第一资源,以及第一终端从第二种第三资源中选择第二资源,即此种场景中第三资源有两种。
在第一资源和第二资源的选择流程是同一个资源选择流程的情况下,第一终端从一种第三资源中选择第一资源和第二资源,即此种场景中第三资源有一种。
在本公开的一种实施方式中,在所述第一终端从第三资源中选择所述旁链路资源的步骤之前,所述方法还包括:
所述第一终端确定(或者识别)所述第三资源。
在本公开的一种实施方式中,所述第一终端确定所述第三资源的步骤,包括:
所述第一终端在第一资源选择窗内确定所述第三资源。
示例性地,第一终端根据mode 2的资源选择流程在资源选择窗口内识别出X%的第三资源(或者低干扰资源)。
在本公开的一种实施方式中,所述第一终端在第一资源选择窗内确定所述第三资源的步骤,包括:
所述第一终端根据协议约定的信息、控制节点配置的信息、或者预配置的信息,在所述第一资源选择窗内确定所述第三资源。
比如,如果仅存在第一终端调度第二终端的模式,第一终端无需确定(或者识别)第三资源。
上述控制节点可以包括:网络侧设备、基站、头节点、UE、RX UE或者中继(Relay)UE。
在本公开的一种实施方式中,所述第一终端从第三资源中选择所述旁链路资源的步骤,包括:所述第一终端确定第二资源选择窗;所述第一终端从所述第二资源选择窗中的所述第三资源(或者低干扰资源)中选择所述旁链路资源。
在本公开的一种实施方式中,所述第一终端根据(1)第一时间、(2)PDB(例如剩余(remaining)PDB)、(3)优先级(Priority)信息、(4)子信道(sub-channel)个数和(5)重传次数中的一项或多项,选择所述旁链路资源; 其中,所述第一时间是第一终端选择旁链路资源的触发时间(或者称为触发时刻)。
可以理解的是,第一时间也可以是第一终端接收到第二信息的时间,或者是第一终端接收到第二信息的时间与偏移值之和,或者是第一终端自主确定的时间
在本公开的一种实施方式中,所述第一终端根据第二时间,选择所述旁链路资源;
其中,所述第二时间至少包括以下一项或多项:
(1)所述第二信息的处理时间;
(2)所述第一资源选择的处理时间;
(3)所述第一信息的传输准备时间
(4)所述第一信息的传输时间;
(5)所述第一信息的解调时间;
(6)所述第二终端的传输准备时间。
在本公开的一种实施方式中,所述第一终端根据(1)第三时间、(2)PDB(例如剩余(remaining)PDB)、(3)优先级(Priority)信息、(4)子信道(sub-channel)个数和(5)重传次数中的一项或多项,确定第三资源;其中,所述第三时间是第一终端选择旁链路资源的触发时间(或者称为触发时刻)。
可以理解的是,第三时间也可以是第一终端接收到第二信息的时间,或者是第一终端接收到第二信息的时间与偏移值之和,或者是第一终端自主确定的时间
在本公开的一种实施方式中,所述第一终端根据第四时间,确定第三资源;
其中,所述第四时间至少包括以下一项或多项:
(1)所述第二信息的处理时间;
(2)所述第一资源选择的处理时间;
(3)所述第一信息的传输准备时间
(4)所述第一信息的传输时间;
(5)所述第一信息的解调时间;
(6)所述第二终端的传输准备时间。
在本公开的一种实施方式中,所述数据包时延预算是协议约定的、控制节点配置或预配置的、控制节点动态指示的、终端之间(比如,Co-UE和TX UE之间)协商的、或者是所述第二终端待传输TB的数据包时延预算;
在本公开的一种实施方式中,所述优先级信息是协议约定的、控制节点配置或预配置的、控制节点动态指示的、终端之间(比如,Co-UE和TX UE之间)协商的、或者是所述第二终端待传输TB的优先级信息;
在本公开的一种实施方式中,所述子信道个数是协议约定的、控制节点配置或预配置的、控制节点动态指示的、终端之间(比如,Co-UE和TX UE之间)协商的、或者是所述第二终端待传输TB的子信道个数;
在本公开的一种实施方式中,所述重传次数是协议约定的、控制节点或预配置配置的、控制节点动态指示的、终端之间(比如,Co-UE和TX UE之间)协商的、或者所述第二终端待传输TB的重传次数。
在本公开的一种实施方式中,所述第一信息的优先级还用于第一信息发送或接收与其他传输间的优先级判断;其中,所述其他传输包括NR SL发送,NR SL接收,NR上行链路(UpLink,UL)发送,演进的通用陆面无线接入(Evolved Universal Terrestrial Radio Access,EUTRA)SL发送和EUTRA SL接收中至少之一。
需要说明的是,在第一终端(比如Co-UE)侧,第一信息(相当于资源推荐信令)的priority信息可用于第一信息(相当于资源推荐信令)发送和UL发送的间的UL/SL优先级(prioritization),或者可用于第一信息(相当于资源推荐信令)’对应的HARQ反馈接收和UL发送的间的UL/SL prioritization。
另外,在第二终端(比如TX UE)侧,第一信息(相当于资源推荐信令)的priority信息可用于第一信息(相当于资源推荐信令)接收和UL发送的间的UL/SL prioritization,或者可用于第一信息(相当于资源推荐信令)’对应的HARQ反馈发送和UL发送的间的UL/SL prioritization。
其中,第一信息(相当于资源推荐信令)接收和发送可采用不同的priority确定方式。
在本公开的一种实施方式中,所述第一终端选择所述旁链路资源的步骤,包括:
所述第一终端根据资源选择机制选择所述旁链路资源;
其中,所述资源选择机制包括以下一项或多项:
(1)第一机制,所述第一机制包括:所述第一资源采用第一资源选择流程,所述第二资源采用第二资源选择流程;
(2)第二机制,所述第二机制包括:所述第一资源采用第三资源选择窗口(或者称为推荐资源的资源选择窗口),所述第二资源采用第四资源选择窗口(或者称为资源推荐信令的选择窗口)。
在本公开的一种实施方式中,所述资源选择机制是协议约定的、控制节点配置或预配置的。
在本公开的一种实施方式中,第一资源选择流程与所述第二资源选择流程满足以下条件之一:
(1)所述第一资源选择流程与所述第二资源选择流程分别执行;也就是,第一资源选择流程与第二资源选择流程是相关独立的。比如,先执行第一资源选择流程,再执行第二资源选择流程,或者,先执行第二资源选择流程,再执行第二资源选择流程,或者,同时执行第一资源选择流程和第二资源选择流程,即选择第一资源和第二资源时,不规定其先后顺序。
可选地,第一资源选择流程或第二资源选择流程至少包括物理层资源选择流程和MAC层资源选择流程中的一个。
示例性的,第一资源和第二资源的资源选择的物理层流程互相独立,MAC层选择最终的传输资源时至少保证第一资源和第二资源间的预设关系(例如时序关系/时间间隔限制)。
(2)所述第一资源选择流程与所述第二资源选择流程共用一个资源选择流程。也就是,第一资源选择流程与第二资源选择流程相互依赖。
其中,所述资源选择流程至少包括物理层资源选择流程和MAC层资源选择流程中的一个。在本公开的一种实施方式中,所述第一资源选择流程与所述第二资源选择流程分别执行,至少包括以下一项或多项:
(1)根据所述第一资源选择流程选择的第一资源的位置触发所述第二资 源选择流程;
(2)根据所述第二源选择流程选择的第二资源的位置触发所述第一资源选择流程;
(3)根据所述第一资源选择流程选择的第一资源的位置选择所述第二资源;
(4)根据所述第二源选择流程选择的第二资源的位置选择所述第一资源。
示例性的,第一资源和第二资源的资源选择流程互相依赖的情况:
首先执行第一资源和第二资源的资源选择流程中的一个(包括物理层和MAC层),MAC层选择其中一种资源后再触发另一个资源选择。
或者,首先执行第一资源和第二资源的资源选择流程中的一个(包括物理层和MAC层),MAC层选择其中一种资源后,MAC层通知物理层所选的第一资源和第二资源,物理层和MAC层再根据所通知的资源位置执行另一个流程。
在本公开的一种实施方式中,所述方法还包括:
如果通过所述第一资源选择流程选择第一资源失败,则所述第一终端中止所述第一资源选择流程,或者丢弃已选的资源;
或者,
如果通过所述第二资源选择流程选择第二资源失败,则所述第一终端中止所述第二资源选择流程,或者丢弃已选的资源。
也就是,对于任意一种资源选择机制,如果第一资源和第二资源中任意一个选择失败(例如没有选到合适的资源),则Co-UE中止该资源选择过程/丢弃已选的第一资源或第二资源。
在本公开的一种实施方式中,所述第三资源选择窗口和所述第四资源选择窗口是协议约定的、控制节点配置或预配置的。
可选地,协议约定、控制节点配置或预配置第一资源和第二资源的选择窗口确定方式,以匹配所述选择机制。
在本公开的一种实施方式中,第三资源选择窗口和第四资源选择窗口满足以下之一:
(1)所述第三资源选择窗口与所述第四资源选择窗口是不同的资源选择 窗;
可选地,第四资源选择窗是根据第三资源选择窗选择的第一资源的位置确定的,或者,第三资源选择窗是根据第四资源选择窗选择的第二资源的位置确定的。
示例性地,先确定第三资源选择窗口,再根据所选的第一资源的位置确定第四资源选择窗口;或者,先确定第四资源选择窗口,再根据所选的第二资源的位置确定第三资源选择窗口;或者,确定第三资源选择窗口和第四资源选择窗口,不规定其先后顺序。
(2)所述第三资源选择窗口与所述第四资源选择窗口共用一个资源选择窗口。
在本公开的一种实施方式中,所述第一资源和所述第二资源之间的时间间隔根据以下一项或多项确定:
(1)所述第一信息的传输时间和所述第二终端解调所述第一信息的时间之和;
(2)所述第一信息的传输时间和所述第二终端的传输准备时间之和;
(3)所述第一信息的传输时间、所述第二终端解调所述第一信息的时间和所述第二终端的传输准备时间之和;
(4)协议约定的、控制节点配置或预配置的、终端之间协商的;
例如,第一资源和所述第二资源之间的最小时间间隔由TX UE通知到Co-UE;例如,以TX UE能力(capability)的形式通知。
(5)所述第一信息能够指示所述第一资源。
需要说明的是,第一资源和所述第二资源之间的时间间隔需要保证第一信息能够指示所选第一资源。第一资源和所述第二资源之间的时间间隔可以是:最后一个第二资源与第一个第一资源之间的间隔;或者,第一资源和所述第二资源之间的时间间隔可以是:第一信息传输成功的位置(例如收到ACK)之后N个时间单位与第一个第一资源之间的时间间隔。
在本公开的一种实施方式中,所述第一信息中包括以下一项或多项:
(1)一个或多个起始子信道的位置;
(2)一个或多个时域资源分配(Time domain resource assignment,TDRA) 域或者频域资源分配(Frequency domain resource assignment,FDRA)域,每个TDRA域或者FDRA域对应一个起始子信道的位置;
(3)一个或多个起始时隙的位置;
(4)所述第一信息与所述起始时隙的时间间隔;
(5)多个起始时隙间的时间间隔;
(6)起始时隙的绝对时间;
(7)起始时隙的参考系统帧号(system frame number,SFN);
(8)起始时隙的时间偏移量。
在本公开实施例中,第一终端可以将选择的旁链路资源中的第一资源推荐给第二终端,提高第二终端利用推荐资源传输的可靠性,第一终端也可以向第二终端发送用于推荐第一资源的第一信息,使得资源推荐能够适时的在第一终端和第二终端间进行。
下面结合实施例一、实施例二和实施例三介绍本公开的实施方式。
为了便于理解,下文中推荐资源相当于第一资源,资源推荐信令的传输资源相当于第二资源,资源推荐信令相当于第一信息,触发信令相当于第二信息,Co-UE相当于第一终端,TX UE相当于第二终端。
实施例一:
一、推荐资源的资源选择包括以下一项或多项:
(1)根据PDB识别低干扰资源/选择资源;
可选地,PDB可从接收触发信令的时间算起;
可选地,PDB是协议约定的、控制节点配置或动态指示的、控制节点预配置的、或者UE间(TX UE和Co-UE间)协商的、或者TX UE的待传输TB的PDB。
可选地,控制节点包括:网络节点、基站、头节点UE、RX UE、relay UE。
(2)根据priority信息识别低干扰资源/选择资源;
可选地,priority信息是协议约定的、控制节点配置或动态指示的、控制节点预配置的、UE间(TX UE和Co-UE间)协商的、或者TX UE侧待传输TB的priority信息。
(3)根据sub-channel个数识别低干扰资源/选择资源;
可选地,所述sub-channel是协议约定的、控制节点配置或动态指示的、控制节点预配置的、UE间(TX UE和Co-UE间)协商的、或者TX UE侧待传输TB的sub-channel数量。
(4)根据重传次数识别低干扰资源/选择资源;
可选地,所述重传次数是协议约定的、控制节点配置或动态指示的、控制节点预配置的、UE间(TX UE和Co-UE间)协商的、或者TX UE侧待传输TB的重传次数。
二、资源推荐信令的传输资源选择包括以下一项或多项:
(1)根据PDB识别低干扰资源/选择资源
可选地,所述PDB可从接收触发信令的时间算起;
可选地,PDB是协议约定的、控制节点配置或动态指示的、控制节点预配置的、或者UE间(TX UE和Co-UE间)协商的。
可选的,PDB与待传输TB的PDB或者推荐资源选择的PDB相关。例如,协议约定、配置每个待传输TB的PDB或者推荐资源选择的PDB对应一个资源推荐信令的PDB;
(2)根据priority信息识别低干扰资源/选择资源。
可选地,priority信息是协议约定的、控制节点配置或动态指示的、控制节点预配置的、UE间(TX UE和Co-UE间)协商的、或者TX UE侧待传输TB的priority信息。
示例性的,触发信令由MAC CE携带,该MAC CE的priority可以是配置的/预配置的。
可选的,如果触发信令与其他信息复用PSCCH/PSSCH,该PSCCH/PSSCH的priority为以下之一:
(a)所有信息priority中的最高值;
(b)触发信令的priority;
(c)依据除触发信令外的其他信息的priority确定。
(3)根据sub-channel个数识别低干扰资源/选择资源。
可选地,所述sub-channel是协议约定的、控制节点配置或动态指示的、控制节点预配置的、UE间(TX UE和Co-UE间)协商的、或者TX UE侧待传 输TB的sub-channel数量。例如占用一个sub-channel。
(4)根据重传次数识别低干扰资源/选择资源
所述重传次数是协议约定的、控制节点配置或动态指示的、预配置的、UE间(TX UE和Co-UE间)协商的。例如只传输一次。
实施例二:
Co-UE根据处理时间/信令传输时间识别低干扰资源/选择传输资源。
可选的,所述处理时间/信令传输时间至少包含一个或者多个如下限制,限制其为最大值、最小值、固定值或真实值:
(1)触发信令的处理时间N0:
示例性的,N0可由第一处理时间
Figure PCTCN2022084509-appb-000001
限定;
(2)推荐资源选择的处理时间和/或资源推荐信令的传输准备时间N1;
可选的,上述两种时间可以分别限定,即推荐资源选择的处理时间N1’和资源推荐信令的传输准备时间N1”。
示例性的,N1、N1’或者N1”可由第二处理时间
Figure PCTCN2022084509-appb-000002
限制。
(3)资源推荐信令的传输时间N2;
示例性的,N2的值为1时隙(slot)。
(4)资源推荐信令的解调时间和/或TX UE侧的传输准备时间N3。
可选的,上述两种时间可以分别限定,即资源推荐信令的解调时间N3’和TX UE侧的传输准备时间N3”。
示例性的,N3’可由
Figure PCTCN2022084509-appb-000003
限制;
示例性的,N3、N3’或者N3”可由第一处理时间和第二处理时间之和
Figure PCTCN2022084509-appb-000004
限制;
示例性的,N3、N3’或者N3’也可以是真实定值,取决于TX UE的能力,包括资源推荐信令的解调,PSCCH/PSSCH传输的准备,TX-RX/RX-TX的转换等至少之一;该值可通知到协调UE
需要说明的是,不排除限定N0…N3任意之和。
实施例三:
(1)UE确定推荐资源的资源选择窗口:n+(X1,X2)/[X1,X2]。
资源选择触发时刻n。若Co-UE在n时刻收到触发信令,推荐资源应选 在n+N0+N1+N2+N3之后。
(2)X1的具体位置满足X1>=/>X1_min和/或X1<=/<X1_max的限制;
X1_min确定方式至少包含以下一项或多项:
选项(Option)1:X1_min由所述N1…N3(或相应的最大/最小值)中的一个或多个(之和)确定。
示例性的,所述X1_min=N2+N3(N1…N3可为相应的最大/最小值)。
Option 2:X1_min由协议约定。
示例性的,所述X1_min=N,当N为0时,X1_min的确定方法等同于相关技术中T1_min的确定方法(协议可根据N1…N3约定N值,N可为非0值)。
Option 3:X1_min由控制节点配置/预配置。
示例性的,X1_min=Y,可根据资源推荐信令的资源选择窗口约定/配置Y值。
Option 4:X1_min至少由资源推荐信令的位置确定,假设资源推荐信令的资源位置在y时刻(可选的,如果存在多个相应的资源推荐信令,y时刻为最后一个资源推荐信令的位置)。
示例性的,X1_min=y;
示例性的,Option 4可结合Option 1,例如X1_min=y+N2+N3(N1…N3可为相应的最大/最小值);
示例性的,Option 4可结合Option 2,例如X1_min=y+N(N可为0);
X1_max确定方式至少包含以下一项或多项:
Option 1:X1_max根据上述option 1/2/3/4的任意X1_min和N1…N3(或相应的最大/最小值)中的一个或多个(之和)确定;
示例性的,X1_max=N0+N1+X1_min(N1…N3可为相应的最大/最小值);
Option 2:X1_max(或X1_max-X1_min)由协议约定;
Option 3:X1_max(或X1_max-X1_min)由控制节点配置/预配置;
Option 4:X1_max至少由资源推荐信令的位置确定,假设资源推荐信令的资源位置在y时刻(可选的,如果存在多个相应的资源推荐信令,y时刻为最后一个资源推荐信令的位置);
示例性的,y与X1_max的时间间隔满足预设关系,即X1_max-y</<=K0,K0为K0协议约定/配置/预配置的值。
另外,也可以通过确定X1_min/X1_max的方法确定X1。
X2>/>=X1和/或X2</<=PDB(该PDB与推荐资源选择相关,参考实施例一)。
(3)UE确定资源指示信令的资源选择窗口:n+(Y1,Y2)/[Y1,Y2]
资源选择触发时刻n,若Co-UE在n时刻收到触发信令,资源推荐信令传输资源选在n+N0+N1之后;
Y1的具体位置满足Y1>=/>Y1_min和/或Y1<=/<Y1_max的限制;
Y1_min/Y1_max的确定方法等同于相关技术中T1_min的确定方法;
Y2>/>=Y1和/或Y2</<=Y2_max,其中Y2_max确定方式至少包含以下一项或多项:
Option 1:Y2_max为PDB(该PDB与资源指示信令资源选择相关,参考实施例一)
可选的,该PDB值可为协议约定的/控制节点配置的/预配置的/UE间协商确定的。
Option 2:Y2_max为协议约定/配置/预配置的值;
Option 3:Y2_max至少由推荐资源的位置确定,假设推荐资源的资源位置在x时刻(可选的,如果存在多个相应的推荐资源,x时刻为第一个推荐资源的位置);
示例性的,x与Y2_max的时间间隔满足预设关系,即x-Y2_max</<=delta,delta为协议约定/配置/预配置的值,或delta至少由所述N1…N3(或相应的最大/最小值)中的一个或多个(之和)确定。
(4)UE确定资源选择窗口:n+(Z1,Z2)/[Z1,Z2]
资源选择触发时刻n,Z1的确定方法同X1/Y1,Z2的确定方法同X2/Y2
另外,作为实施例一的补充,在所述窗口进行资源选择时,可根据‘推荐资源’的sub-channel个数进行资源选择。但开始的若干个(/首个)资源用于传输资源推荐信令且可以限定‘资源推荐信令’只使用一个subchannel传输。
参见图5,本公开实施例提供一种旁链路资源推荐的装置,应用于第一终端,该装置500包括:
选择模块501,用于选择旁链路资源,所述旁链路资源包括以下一项或多项:第一资源和第二资源;
其中,所述第一资源是所述第一终端推荐给第二终端的;
所述第二资源用于所述第一终端向所述第二终端发送第一信息,所述第一信息用于所述第一终端向所述第二终端推荐所述第一资源。
在本公开的一种实施方式中,所述装置500还包括:
第一接收模块,用于接收第二信息,所述第二信息用于触发所述第一终端选择所述旁链路资源,或者所述第二信息用于触发所述第一终端向所述第二终端推荐所述第一资源。
在本公开的一种实施方式中,所述装置500还包括:
第一发送模块,用于通过所述第二资源向所述第一终端发送第一信息。
在本公开的一种实施方式中,选择模块501进一步用于:所述第一终端从第三资源中选择所述旁链路资源,所述第三资源是干扰低于阈值的资源。
在本公开的一种实施方式中,所述装置500还包括:
确定模块,用于确定所述第三资源。
在本公开的一种实施方式中,确定模块进一步用于:在第一资源选择窗内确定所述第三资源。
在本公开的一种实施方式中,确定模块进一步用于:所述第一终端根据协议约定的信息、控制节点配置的信息、或者预配置的信息,在所述第一资源选择窗内确定所述第三资源。
在本公开的一种实施方式中,选择模块501进一步用于:确定第二资源选择窗;从所述第二资源选择窗中的所述第三资源中选择所述旁链路资源。
在本公开的一种实施方式中,选择模块501进一步用于:所述第一终端根据第一时间、PDB、优先级信息、子信道个数和重传次数中的一项或多项,选择所述旁链路资源;
其中,所述第一时间是所述第一终端选择旁链路资源的触发时间。
在本公开的一种实施方式中,选择模块501进一步用于:根据第二时间, 选择所述旁链路资源;
其中,所述第二时间至少包括以下一项或多项:
所述第二信息的处理时间;
所述第一资源选择的处理时间;
所述第一信息的传输准备时间;
所述第一信息的传输时间;
所述第一信息的解调时间;
所述第二终端的传输准备时间。
在本公开的一种实施方式中,确定模块进一步用于:根据第三时间、数据包时延预算、优先级信息、子信道个数和重传次数中的一项或多项,确定所述第三资源;
其中,所述第三时间是所述第一终端选择所述旁链路资源的触发时间。
在本公开的一种实施方式中,确定模块进一步用于:根据第四时间,确定所述第三资源;
其中,所述第四时间包括以下一项或多项:
所述第二信息的处理时间;
所述第一资源选择的处理时间;
所述第一信息的传输准备时间
所述第一信息的传输时间;
所述第一信息的解调时间;
所述第二终端的传输准备时间。
在本公开的一种实施方式中,所述数据包时延预算是协议约定的、控制节点配置或预配置的、控制节点动态指示的、终端之间协商的、或者是所述第二终端待传输TB的数据包时延预算;
或者,
所述优先级信息是协议约定的、控制节点配置或预配置的、控制节点动态指示的、终端之间协商的、或者是所述第二终端待传输TB的优先级信息;
或者,
所述子信道个数是协议约定的、控制节点配置或预配置的、控制节点动 态指示的、终端之间协商的、或者是所述第二终端待传输TB的子信道个数;
或者,
所述重传次数是协议约定的、控制节点或预配置配置的、控制节点动态指示的、终端之间协商的、或者是所述第二终端待传输TB的重传次数。
在本公开的一种实施方式中,所述第一信息的优先级还用于所述第一信息发送或接收与其他传输间的优先级判断;其中,所述其他传输包括:新空口NR旁链路SL发送,NR SL接收,NR上行链路UL发送,演进的通用陆面无线接入EUTRA SL发送和EUTRA SL接收中至少之一。
在本公开的一种实施方式中,选择模块501进一步用于:根据资源选择机制选择所述旁链路资源;
其中,所述资源选择机制包括以下一项或多项:
第一机制,所述第一机制包括:所述第一资源采用第一资源选择流程,所述第二资源采用第二资源选择流程;
第二机制,所述第二机制包括:所述第一资源采用第三资源选择窗口,所述第二资源采用第四资源选择窗口。
在本公开的一种实施方式中,所述资源选择机制是协议约定的、控制节点配置或预配置的。
在本公开的一种实施方式中,所述第一资源选择流程与所述第二资源选择流程分别执行;
或者,所述第一资源选择流程与所述第二资源选择流程共用一个资源选择流程。
在本公开的一种实施方式中,所述第一资源选择流程与所述第二资源选择流程分别执行,至少包括以下一项或多项:
根据所述第一资源选择流程选择的第一资源的位置触发所述第二资源选择流程;
根据所述第二源选择流程选择的第二资源的位置触发所述第一资源选择流程;
根据所述第一资源选择流程选择的第一资源的位置选择所述第二资源;
根据所述第二源选择流程选择的第二资源的位置选择所述第一资源。
在本公开的一种实施方式中,所述装置500还包括:处理模块,用于:
如果通过所述第一资源选择流程选择第一资源失败,则中止所述第一资源选择流程,或者丢弃已选的资源;
或者,
如果通过所述第二资源选择流程选择第二资源失败,则中止所述第二资源选择流程,或者丢弃已选的资源。
在本公开的一种实施方式中,所述第三资源选择窗口和所述第四资源选择窗口是协议约定的、控制节点配置或预配置的。
在本公开的一种实施方式中,,所述第三资源选择窗口和第四资源选择窗口满足以下之一:
所述第三资源选择窗口与所述第四资源选择窗口是不同的资源选择窗;
或者,所述第三资源选择窗口与所述第四资源选择窗口共用一个资源选择窗口。
在本公开的一种实施方式中,所述第三资源选择窗口与所述第四资源选择窗口是不同的资源选择窗,包括:
所述第四资源选择窗是根据第三资源选择窗选择的第一资源的位置确定的,或者,所述第三资源选择窗是根据第四资源选择窗选择的第二资源的位置确定的。
在本公开的一种实施方式中,所述第一资源和所述第二资源之间的时间间隔根据以下一项或多项确定:
所述第一信息的传输时间和所述第二终端解调所述第一信息的时间之和;
所述第一信息的传输时间和所述第二终端的传输准备时间之和;
所述第一信息的传输时间、所述第二终端解调所述第一信息的时间和所述第二终端的传输准备时间之和;
协议约定的、控制节点配置或预配置的、终端之间协商的;
所述第一信息能够指示所述第一资源。
在本公开的一种实施方式中,所述第一信息中包括以下一项或多项:
一个或多个起始子信道的位置;
一个或多个TDRA域或者FDRA域,每个TDRA域或者FDRA域对应 一个起始子信道的位置;
一个或多个起始时隙的位置;
所述第一信息与所述起始时隙的时间间隔;
多个起始时隙间的时间间隔;
起始时隙的绝对时间;
起始时隙的参考SFN;
起始时隙的时间偏移量。
本公开实施例提供的装置能够实现图2-图4所示的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
本公开实施例还提供一种终端,包括处理器和通信接口,处理器用于选择旁链路资源,所述旁链路资源包括以下一项或多项:第一资源和第二资源;其中,所述第一资源是所述第一终端推荐给第二终端的;所述第二资源用于所述第一终端向所述第二终端发送第一信息,所述第一信息用于所述第一终端向所述第二终端推荐所述第一资源。该终端实施例是与上述终端侧方法实施例对应的,上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中,且能达到相同的技术效果。
具体地,图6为实现本公开实施例的一种终端的硬件结构示意图,该终端600包括但不限于:射频单元601、网络模块602、音频输出单元603、输入单元604、传感器605、显示单元606、用户输入单元607、接口单元608、存储器609、以及处理器610等中的至少部分部件。
本领域技术人员可以理解,终端600还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器610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。图6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,在此不再赘述。
应理解的是,本公开实施例中,输入单元604可以包括图形处理器(Graphics Processing Unit,GPU)4041和麦克风6042,图形处理器6041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元606可包括显示面板6061,可以 采用液晶显示器、有机发光二极管等形式来配置显示面板6061。用户输入单元607包括触控面板6071以及其他输入设备6072。触控面板6071,也称为触摸屏。触控面板6071可包括触摸检测装置和触摸控制器两个部分。其他输入设备4072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本公开实施例中,射频单元601将来自网络侧设备的下行数据接收后,给处理器610处理;另外,将上行的数据发送给网络侧设备。通常,射频单元601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。
存储器609可用于存储软件程序或指令以及各种数据。存储器609可主要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器609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,其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器610可包括一个或多个处理单元;可选的,处理器610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或指令等,调制解调处理器主要处理无线通信,如基带处理器。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610中。
本公开实施例提供的终端能够实现图2-图4所示的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
本公开实施例还提供一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如图2-图4所述的处理的方法的步骤。
本公开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图2-图4所示方法实施例 的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。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。
本公开实施例还提供了一种芯片,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,实现上述图2~图4所示方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本公开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。
本公开实施例还提供了一种芯片,被配置为执行如上述图2至图4所示方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
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、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。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,本公开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,本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以计算机程序产品的形式体现出来,该计算机程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)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述,但是本公开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公开的启示下,在不脱离本公开宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本公开的保护之内。

Claims (30)

  1. 一种旁链路资源推荐的方法,包括:
    第一终端选择旁链路资源,所述旁链路资源包括以下一项或多项:第一资源和第二资源;
    其中,所述第一资源是所述第一终端推荐给第二终端的;
    所述第二资源用于所述第一终端向所述第二终端发送第一信息,所述第一信息用于所述第一终端向所述第二终端推荐所述第一资源。
  2. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述第一终端接收第二信息,所述第二信息用于触发所述第一终端选择所述旁链路资源,或者所述第二信息用于触发所述第一终端向所述第二终端推荐所述第一资源。
  3. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述第一终端通过所述第二资源向所述第一终端发送第一信息。
  4. 根据权利要求1或2所述的方法,其中,所述第一终端选择旁链路资源的步骤,包括:
    所述第一终端从第三资源中选择所述旁链路资源,所述第三资源是干扰低于阈值的资源。
  5. 根据权利要求4所述的方法,其中,在所述第一终端从第三资源中选择所述旁链路资源的步骤之前,所述方法还包括:
    所述第一终端确定所述第三资源。
  6. 根据权利要求5所述的方法,其中,所述第一终端确定所述第三资源的步骤,包括:
    所述第一终端在第一资源选择窗内确定所述第三资源。
  7. 根据权利要求6所述的方法,其中,所述第一终端在第一资源选择窗内确定所述第三资源的步骤,包括:
    所述第一终端根据协议约定的信息、控制节点配置的信息、或者预配置的信息,在所述第一资源选择窗内确定所述第三资源。
  8. 根据权利要求4所述的方法,其中,所述第一终端从第三资源中选择 所述旁链路资源的步骤,包括:
    所述第一终端确定第二资源选择窗;
    所述第一终端从所述第二资源选择窗中的所述第三资源中选择所述旁链路资源。
  9. 根据权利要求1所述方法,其中,所述第一终端选择所述旁链路资源的步骤,包括:
    所述第一终端根据第一时间、数据包时延预算PDB、优先级信息、子信道个数和重传次数中的一项或多项,选择所述旁链路资源;
    其中,所述第一时间是所述第一终端选择旁链路资源的触发时间。
  10. 根据权利要求1所述方法,其中,所述第一终端选择所述旁链路资源的步骤,包括:
    所述第一终端根据第二时间,选择所述旁链路资源;
    其中,所述第二时间至少包括以下一项或多项:
    所述第二信息的处理时间;
    所述第一资源选择的处理时间;
    所述第一信息的传输准备时间;
    所述第一信息的传输时间;
    所述第一信息的解调时间;
    所述第二终端的传输准备时间。
  11. 根据权利要求5所述方法,其中,所述第一终端确定所述第三资源的步骤,包括:
    所述第一终端根据第三时间、数据包时延预算、优先级信息、子信道个数和重传次数中的一项或多项,确定所述第三资源;
    其中,所述第三时间是所述第一终端选择所述旁链路资源的触发时间。
  12. 根据权利要求5所述方法,其中,所述第一终端确定所述第三资源的步骤,包括:
    所述第一终端根据第四时间,确定所述第三资源;
    其中,所述第四时间包括以下一项或多项:
    所述第二信息的处理时间;
    所述第一资源选择的处理时间;
    所述第一信息的传输准备时间
    所述第一信息的传输时间;
    所述第一信息的解调时间;
    所述第二终端的传输准备时间。
  13. 根据权利要求9或11所述方法,其中,
    所述数据包时延预算是协议约定的、控制节点配置或预配置的、控制节点动态指示的、终端之间协商的、或者是所述第二终端待传输TB的数据包时延预算;
    或者,
    所述优先级信息是协议约定的、控制节点配置或预配置的、控制节点动态指示的、终端之间协商的、或者是所述第二终端待传输TB的优先级信息;
    或者,
    所述子信道个数是协议约定的、控制节点配置或预配置的、控制节点动态指示的、终端之间协商的、或者是所述第二终端待传输TB的子信道个数;
    或者,
    所述重传次数是协议约定的、控制节点或预配置配置的、控制节点动态指示的、终端之间协商的、或者是所述第二终端待传输TB的重传次数。
  14. 根据权利要求1所述方法,其中,所述第一信息的优先级还用于所述第一信息发送或接收或第一信息对应的反馈信息发送或接收与其他传输间的优先级判断;其中,所述其他传输包括:新空口NR旁链路SL发送,NR SL接收,NR上行链路UL发送,演进的通用陆面无线接入EUTRA SL发送和EUTRA SL接收中至少之一。
  15. 根据权利要求1所述方法,其中,所述第一终端选择所述旁链路资源的步骤,包括:
    所述第一终端根据资源选择机制选择所述旁链路资源;
    其中,所述资源选择机制包括以下一项或多项:
    第一机制,所述第一机制包括:所述第一资源采用第一资源选择流程,所述第二资源采用第二资源选择流程;
    第二机制,所述第二机制包括:所述第一资源采用第三资源选择窗口,所述第二资源采用第四资源选择窗口。
  16. 根据权利要求15所述方法,其中,所述资源选择机制是协议约定的、控制节点配置或预配置的。
  17. 根据权利要求15所述的方法,其中,
    所述第一资源选择流程与所述第二资源选择流程分别执行;
    或者,所述第一资源选择流程与所述第二资源选择流程共用一个资源选择流程。
  18. 根据权利要求17所述的方法,其中,所述第一资源选择流程与所述第二资源选择流程分别执行,至少包括以下一项或多项:
    根据所述第一资源选择流程选择的第一资源的位置触发所述第二资源选择流程;
    根据所述第二源选择流程选择的第二资源的位置触发所述第一资源选择流程;
    根据所述第一资源选择流程选择的第一资源的位置选择所述第二资源;
    根据所述第二源选择流程选择的第二资源的位置选择所述第一资源。
  19. 根据权利要求15所述的方法,其中,所述方法还包括:
    如果通过所述第一资源选择流程选择第一资源失败,则所述第一终端中止所述第一资源选择流程,或者丢弃已选的资源;
    或者,
    如果通过所述第二资源选择流程选择第二资源失败,则所述第一终端中止所述第二资源选择流程,或者丢弃已选的资源。
  20. 根据权利要求15所述的方法,其中,所述第三资源选择窗口和所述第四资源选择窗口是协议约定的、控制节点配置或预配置的。
  21. 根据权利要求15所述的方法,其中,所述第三资源选择窗口和第四资源选择窗口满足以下之一:
    所述第三资源选择窗口与所述第四资源选择窗口是不同的资源选择窗;
    所述第三资源选择窗口与所述第四资源选择窗口共用一个资源选择窗口。
  22. 根据权利要求21所述的方法,其中,所述第三资源选择窗口与所述 第四资源选择窗口是不同的资源选择窗,包括:
    所述第四资源选择窗是根据第三资源选择窗选择的第一资源的位置确定的,或者,所述第三资源选择窗是根据第四资源选择窗选择的第二资源的位置确定的。
  23. 根据权利要求1所述的方法,其中,所述第一资源和所述第二资源之间的时间间隔根据以下一项或多项确定:
    所述第一信息的传输时间和所述第二终端解调所述第一信息的时间之和;
    所述第一信息的传输时间和所述第二终端的传输准备时间之和;
    所述第一信息的传输时间、所述第二终端解调所述第一信息的时间和所述第二终端的传输准备时间之和;
    协议约定的、控制节点配置或预配置的、终端之间协商的;
    所述第一信息能够指示所述第一资源。
  24. 根据权利要求1所述的方法,其中,所述第一信息中包括以下一项或多项:
    一个或多个起始子信道的位置;
    一个或多个TDRA域或者FDRA域,每个TDRA域或者FDRA域对应一个起始子信道的位置;
    一个或多个起始时隙的位置;
    所述第一信息与所述起始时隙的时间间隔;
    多个起始时隙间的时间间隔;
    起始时隙的绝对时间;
    起始时隙的参考SFN;
    起始时隙的时间偏移量。
  25. 一种旁链路资源推荐的装置,应用于第一终端,包括:
    选择模块,用于选择旁链路资源,所述旁链路资源包括以下一项或多项:第一资源和第二资源;
    其中,所述第一资源是所述第一终端推荐给第二终端的;
    所述第二资源用于所述第一终端向所述第二终端发送第一信息,所述第一信息用于所述第一终端向所述第二终端推荐所述第一资源。
  26. 一种终端,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,所述程序被所述处理器执行时实现如权利要求1至24中任一项所述的方法的步骤。
  27. 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权利要求1至24中任一项所述的方法的步骤。
  28. 一种芯片,包括处理器和通信接口,其中,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至24中任一项所述的旁链路资源推荐的方法的步骤。
  29. 一种计算机程序产品,其中,所述程序产品被存储在存储介质中,所述程序产品被至少一个处理器执行以,实现如权利要求1至24中任一项所述的旁链路资源推荐的方法的步骤。
  30. 一种通信设备,被配置为执行如权利要求1至24中任一项所述的旁链路资源推荐的方法的步骤。
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