WO2023131304A1 - 旁链路资源选择方法及装置 - Google Patents

旁链路资源选择方法及装置 Download PDF

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Publication number
WO2023131304A1
WO2023131304A1 PCT/CN2023/071039 CN2023071039W WO2023131304A1 WO 2023131304 A1 WO2023131304 A1 WO 2023131304A1 CN 2023071039 W CN2023071039 W CN 2023071039W WO 2023131304 A1 WO2023131304 A1 WO 2023131304A1
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Prior art keywords
sidelink
resource
subset
resources
candidate
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PCT/CN2023/071039
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English (en)
French (fr)
Inventor
梁敬
吴建明
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维沃移动通信有限公司
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Publication of WO2023131304A1 publication Critical patent/WO2023131304A1/zh

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    • 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
    • H04L5/0096Indication of changes in allocation
    • H04L5/0098Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/23Manipulation of direct-mode connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application belongs to the technical field of wireless communication, and in particular relates to a sidelink resource selection method and device.
  • the upper layer selects resources for initial transmission and/or retransmission, but currently there is no clear method for the upper layer to select resources , resulting in the selected resources being difficult to use in some scenarios and unable to be normally received by the receiving end.
  • the embodiments of the present application provide a sidelink resource selection method and device, which can solve the problem of how high-level layers select resources for initial transmission and/or retransmission, and make the selected resources be used as much as possible and receive normally at the receiving end.
  • a sidelink resource selection method includes:
  • the terminal acquires the first sidelink candidate resource subset and the second sidelink candidate resource subset, wherein the resources in the first sidelink candidate resource subset are within the activation time of at least one receiving end, and the second The resources in the sidelink candidate resource subset are not within the activation time of at least one receiving end;
  • the terminal selects a target resource from the first sidelink candidate resource subset and/or the second sidelink candidate resource subset.
  • a sidelink resource selection device including:
  • An acquisition module configured to acquire a first subset of sidelink candidate resources and a second subset of sidelink candidate resources, wherein the resources in the first subset of sidelink candidate resources are within the activation time of at least one receiving end, The resources in the second sidelink candidate resource subset are not within the activation time of at least one receiving end;
  • a selecting module configured to select a target resource from the first sidelink candidate resource subset and/or the second sidelink candidate resource subset.
  • a terminal in a third aspect, includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, the following The steps of the method in one aspect.
  • a terminal including a processor and a communication interface, wherein the processor is configured to obtain a first sidelink candidate resource subset and a second sidelink candidate resource subset, wherein the first The resources in the sidelink candidate resource subset are within the activation time of at least one receiving end, and the resources in the second sidelink candidate resource subset are not within the activation time of at least one receiving end; in the first sidelink The target resource is selected from the candidate resource subset and/or the second sidelink candidate resource subset.
  • 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 sixth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and implement the method as described in the first aspect .
  • a computer program/program product is provided, 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 method described in the first aspect method steps.
  • a communication device configured to perform the steps of the method described in the first aspect.
  • the activation time of the receiving end is considered, so that the selected resources can be utilized to the greatest extent, and the selected resources are avoided due to the inactivation time of the receiving end.
  • the problem that it cannot be used or cannot be received even if the receiving end is used has improved the reliability of resource sidelink selection.
  • FIG. 1 is a block diagram of a wireless communication system applicable to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a DRX cycle
  • FIG. 3 is a schematic diagram of DRX-related timers
  • FIG. 4 is a schematic flowchart of a sidelink resource selection method according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a sidelink resource selection device according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are 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” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • the following description describes the New Radio (New Radio, NR) system for example purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6th Generation , 6G) communication system.
  • 6G 6th generation
  • Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer, TPC), a laptop computer (Laptop Computer, LC) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, Ultra-mobile Personal Computer (UMPC), Mobile Internet Device (MID), Augmented Reality (AR)/Virtual Reality (VR) equipment, robots, wearable devices (Wearable Device), vehicle-mounted equipment (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, Personal computer (Personal Computer, PC), teller machine or self-service machine and other terminal devices, wearable devices include: smart watches, smart bracelets, smart headphones
  • the network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a wireless access network unit.
  • RAN Radio Access Network
  • the access network equipment may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.
  • the base station may be called a node B, an evolved node B (eNB), an access network Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B, Home Evolution Type B node, Transmitting Receiving Point (Transmitting Receiving Point, TRP) 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 terms. It should be noted that in this application In the embodiment, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.
  • LTE Long Term Evolution
  • UE User Equipment
  • the UE sends Sidelink Control Information (SCI) through the Physical Sidelink Control Channel (PSCCH), and schedules the transmission of the Physical Sidelink Shared Channel (PSSCH) to send data .
  • SCI Sidelink Control Information
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • the transmission is carried out in the form of broadcast, and the receiving end does not feed back to the sending end whether the reception is successful.
  • the LTE sidelink design supports two resource allocation modes, namely the Scheduled resource allocation mode and the autonomous resource selection mode.
  • the former is controlled by the network side equipment and allocates resources for each UE, and the latter is independently selected by the UE.
  • LTE supports sidelink carrier aggregation (Carrier Aggregation, CA).
  • CA Carrier Aggregation
  • the CA of LTE sidelink is different from the Uu interface (ie, downlink and uplink), and there is no distinction between primary carrier (Primary Component Carrier, PCC) and secondary carrier (Secondary Component Carrier, SCC).
  • PCC Primary Component Carrier
  • SCC Secondary Component Carrier
  • LTE sidelink is suitable for specific public safety affairs (such as emergency communication in fire places or disaster places such as earthquakes), or vehicle networking (Vehicle to Everything, V2X) communication, etc.
  • Vehicle networking communication includes various services, such as basic safety communication, advanced (automatic) driving, platooning, sensor expansion and so on. Since LTE sidelink only supports broadcast communication, it is mainly used for basic security communication, and other advanced V2X services will be supported through NR sidelink.
  • the 5G NR system can be used in the working frequency band above 6GHz that LTE does not support, and supports a larger working bandwidth.
  • the current version of the NR system only supports the interface between the base station and the terminal, and does not yet support the Sidelink interface for direct communication between terminals.
  • the communication interface between the terminal and the terminal is called the PC5 interface, and the terminal and the Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network, E-UTRAN), etc.
  • the interface connected to the access network device is called the Uu interface.
  • the current sidelink transmission is mainly divided into broadcast (broadcast), multicast (groupcast) and unicast (unicast) transmission forms.
  • unicast is one-to-one (one to one) transmission.
  • Multicast is one-to-many transmission. Broadcasting is also a one to many transmission, but broadcasting does not have the concept that UEs belong to the same group.
  • NR sidelink defines two modes (mode), one is mode1, the base station schedules resources, and the other is mode2, the UE decides what resources to use for transmission.
  • the resource information may come from the broadcast message or pre-configuration of the base station. If the UE works within the range of the base station and has a radio resource control (Radio Resource Control, RRC) connection with the base station, it can be mode1 and/or mode2. If the UE works within the range of the base station but has no RRC connection with the base station, it can only work in mode2 . If the UE is outside the range of the base station, it can only work in mode2 and perform V2X transmission according to pre-configured information.
  • mode2 can also be further divided into 2a, 2b, 2c, 2d.
  • the resource pool is sent or pre-configured by the network side.
  • the resource pool will contain the resources used for transmission and many transmission-related parameters. For example, in LTE, the first sub- The offset value of the frame, the bitmap corresponding to the resource pool, whether PSCCH and PSSCH will be transmitted in adjacent resource blocks (Resource Block, RB), the number of subchannels and the size of each subchannel, and the minimum corresponding subchannel.
  • RB Resource Block
  • S-RSSI Sidelink Received Signal Strength Indication
  • resource pools and corresponding resources may be selected based on network scheduling, or resource pools may be selected autonomously based on pre-configuration.
  • the selection of the resource pool may need to consider the area where the UE is located to select a resource pool related to the area where it is located.
  • resources in the resource pool are independently selected, it is mainly based on a sensing mechanism, and may also be randomly selected (for example, resource selection in an abnormal resource pool).
  • the DRX long cycle is required to be an integer multiple of the DRX short cycle, so as to ensure that the onDurations of the two are aligned.
  • the base station will configure DRX-related timers and parameters for the terminal, including:
  • drx-LongCycleStartOffset used to configure the cycle and offset of the long DRX cycle, the unit of cycle and offset is milliseconds;
  • drx-ShortCycleTimer used to control the duration of the terminal using the short DRX cycle, the unit is an integer, indicating that once the terminal enters the short DRX cycle, it must maintain the short cycle of the integer multiple;
  • drx-SlotOffset The delay for the terminal to start or restart the drx-onDuration Timer. This parameter is used to set the offset of the starting moment of DRX onDuration relative to the starting point of the subframe.
  • the offset is an integer multiple of 1/32 milliseconds ;
  • drx-InactivityTimer DRX inactivity timer.
  • the timer starts or restarts after the terminal receives the first symbol after the terminal receives the PDCCH signaling for new uplink/downlink data scheduling.
  • the terminal needs to continuously monitor the control channel.
  • the unit of the timer is milliseconds;
  • drx-HARQ-RTT-TimerDL The downlink HARQ RTT timer is maintained based on each downlink process, and the timer length is the minimum time interval from the HARQ feedback moment to the receipt of the HARQ retransmission for the process. Only when the data corresponding to the downlink process is not successfully decoded, the terminal will start or restart the timer at the first symbol after the HARQ negative response (Negative ACKnowledge, NACK) feedback of the process. If the current terminal only has drx-HARQ-RTT-TimerDL and/or drx-HARQ-RTT-TimerUL running, the terminal does not need to monitor the PDCCH control channel, and the timer unit is a symbol;
  • Uplink HARQ RTT timer maintained based on each uplink process, the timer length is the minimum time interval between the time of PUSCH transmission and the receipt of HARQ retransmission for this process.
  • the terminal After the uplink PUSCH transmission, the terminal starts or restarts the uplink HARQ RTT timer for the uplink process. If PUSCH transmission uses PUSCH repetition (PUSCH repetition), then the uplink HARQ RTT timer starts or restarts after the first repetition of PUSCH, to It is ensured that the base station can terminate the repeated transmission of the PUSCH in time after parsing the PUSCH in advance.
  • the timer unit is the symbol;
  • drx-RetransmissionTimerDL Downlink retransmission timer, the next symbol after drx-HARQ-RTT-TimerDL times out starts or restarts the timer.
  • the terminal monitors the control channel of the network, and stops the timer if it receives downlink scheduling information or a downlink configured grant for the process.
  • the timer unit is a time slot (time slot);
  • drx-RetransmissionTimerUL Uplink retransmission timer, the next symbol after drx-HARQ-RTT-TimerUL times out starts or restarts the timer.
  • the terminal monitors the control channel of the network, and stops running if it receives uplink scheduling information or uplink configured grant for the process.
  • the timer unit is a time slot.
  • Figure 2 is a schematic diagram of a DRX cycle (Cycle). It can be seen from Figure 2 that time is divided into successive DRX Cycles in the time domain.
  • FIG. 3 is a schematic diagram of DRX-related timers.
  • sidelink also supports DRX configuration for both unicast, multicast and broadcast.
  • on-duration timer all three types (cast type) are currently supported.
  • inactivity timer Inactivity timer
  • unicast and multicast support broadcast is not supported temporarily.
  • the behavior of the UE at the receiving end and the behavior of the UE at the sending end may both need to be defined.
  • the time to start or restart the inactivity timer is when the first Sidelink Control Information (first SCI) and the second Sidelink Control Information (second Sidelink Control Information) are received.
  • the receiving end (RX) UE Since sidelink introduces DRX, the receiving end (RX) UE is not in the state of receiving all the time, so it is currently agreed that before sending data at the sending end (Transmit, TX), it is necessary to consider the activation time of the receiving end (Receiver, RX) UE , and select the resources within the corresponding activation time for transmission, so that the sending and receiving can be carried out normally.
  • the embodiment of the present application provides a sidelink resource selection method, including:
  • Step 41 The terminal acquires the first sidelink candidate resource subset and the second sidelink candidate resource subset, wherein the resources in the first sidelink candidate resource subset are within the activation time of at least one receiving end, so The resources in the second sidelink candidate resource subset are not within the activation time of at least one receiving end;
  • the resources in the first sidelink candidate resource subset are within the activation time of at least one receiving end, which may be: the resources in the first sidelink candidate resource subset are within all within the activation time of the receiving end, or, the resources in the first sidelink candidate resource subset are within the activation time of part of the receiving end, or, the resources in the first sidelink candidate resource subset are within the activation time of a certain receiving end (this , it may be that each receiving end corresponds to a first sidelink candidate resource subset).
  • the resources in the second sidelink candidate resource subset are not within the activation time of at least one receiving end, which may be: the resources in the second sidelink candidate resource subset are not within the activation time of all receiving ends or, the resources in the second sidelink candidate resource subset are not within the activation time of some receiving ends, or, the resources in the second sidelink candidate resource subset are within the activation time of a certain receiving end (this , it may be that each receiving end corresponds to a second sidelink candidate resource subset).
  • Step 42 The terminal selects a target resource from the first sidelink candidate resource subset and/or the second sidelink candidate resource subset.
  • the target resource is used for initial transmission and/or retransmission of data packets.
  • the activation time of the receiving end is considered, so that the selected resources can be utilized to the greatest extent, and the selected resources are prevented from being unusable due to the inactivation time of the receiving end or even if The problem that the receiver cannot receive it even if it is used.
  • the activation time includes a current activation time and/or a possible future activation time.
  • the current activation time includes at least one of the following:
  • the resource transmission position in the periodic transmission or the resource transmission position of the current period in the periodic transmission;
  • CSI Channel State Information
  • the possible future activation time includes at least one of the following:
  • the terminal selects a target resource from the first sidelink candidate resource subset and/or the second sidelink candidate resource subset, including at least one of the following:
  • Solution 1 The terminal selects target resources in the first subset of sidelink candidate resources for initial transmission and/or retransmission of data packets, and selects target resources in the second subset of sidelink candidate resources for for initial transmission and/or retransmission of data packets;
  • the first solution includes one of the following:
  • the terminal selects target resources from the first sidelink candidate resource subset and the second sidelink candidate resource subset for initial transmission and retransmission of data packets;
  • the higher layer may no longer distinguish the first sidelink candidate resource subset from the second sidelink candidate resource subset, but instead The link candidate resource subset is used as a whole for resource selection.
  • the terminal selects target resources in the first subset of sidelink candidate resources for initial transmission of data packets, and selects target resources in the second subset of sidelink candidate resources for retransmission of data packets .
  • Solution 2 the terminal selects target resources only from the first sidelink candidate resource subset for initial transmission and/or retransmission of data packets;
  • Scheme 3 The terminal selects a target resource in the first sidelink candidate resource subset based on the current activation time of the receiving terminal for initial transmission and/or retransmission of the data packet, and in the second sidelink A target resource is selected from the subset of candidate resources based on a possible future activation time of the receiving end for initial transmission and/or retransmission of the data packet.
  • the third solution includes one of the following:
  • the terminal selects a target resource in the first sidelink candidate resource subset based on the current activation time of the receiving end for the initial transmission of the data packet, and in the second sidelink candidate resource subset based on the Select the target resource for the initial transmission and/or retransmission of the data packet according to the possible future activation time of the receiving end;
  • the terminal selects a target resource in the first sidelink candidate resource subset based on the current activation time of the receiving end for the initial transmission and retransmission of the data packet, and in the second sidelink candidate resource subset Centrally select target resources for initial transmission and/or retransmission of data packets based on the possible future activation time of the receiving end.
  • Solution 4 The terminal selects target resources for the initial transmission and / or retransmit.
  • the terminal selects target resources in the first sidelink candidate resource subset, the number of selected target resources is greater than or equal to N1, or the proportion of selected target resources is greater than or equal to X1%; wherein, N1 is a positive integer greater than or equal to 1.
  • the number of selected target resources is greater than or equal to N2, or the proportion of selected target resources is greater than or equal to X2%.
  • N2 is a positive integer greater than or equal to 1.
  • the terminal selects target resources only in the first subset of sidelink candidate resources for initial transmission and/or retransmission of data packets, and then further includes: if in the The resources selected in the first sidelink candidate resource subset cannot meet the preset conditions, and perform one of the following:
  • the higher layer may no longer distinguish the first sidelink candidate resource subset from the second sidelink candidate resource subset, but instead The link candidate resource subset is used as a whole for resource selection.
  • the terminal selects target resources from the first subset of sidelink candidate resources for initial transmission and/or retransmission of data packets, and selects target resources in the second subset of sidelink candidate resources.
  • Target resources are selected from the resource subset for initial transmission and/or retransmission of data packets, and then include:
  • resource reselection is triggered.
  • the terminal selects target resources for initial transmission and/or retransmission of data packets based on the current activation time of the receiving end only in the first subset of sidelink candidate resources, Then also include:
  • Trigger resource reselection Trigger resource reselection.
  • the terminal selects a target resource for data based on the current activation time of the receiving end only in the first sidelink candidate resource subset and the second sidelink candidate resource subset.
  • the initial transmission and/or retransmission of the packet or, the terminal selects the target resource for the initial transmission and/or retransmission of the data packet based on the current activation time of the receiving end only in the second sidelink candidate resource subset Biography, and then also include:
  • Trigger resource reselection Trigger resource reselection.
  • the terminal selects a target resource from the first sidelink candidate resource subset and/or the second sidelink candidate resource subset, including:
  • the terminal selects a target resource for a single data packet, it selects the target resource according to one of schemes 1, 2, 3 and 4; 2.
  • One of the schemes 3 and 4 selects the target resource, and the scheme for selecting the target resource is different from the scheme for selecting the target resource for a single data packet.
  • the terminal selects a target resource from the first sidelink candidate resource subset and/or the second sidelink candidate resource subset, including one of the following:
  • the terminal selects the target resource according to scheme two, and when selecting target resources for multiple data packets, selects the target resource according to scheme three or scheme four.
  • the preset conditions include at least one of the following:
  • the number of resources is less than or equal to the first threshold
  • the percentage of the number of resources is less than or equal to the second threshold
  • the spacing between resources cannot meet the required value.
  • the denominator may be the number of resources in the first sidelink candidate resource subset, the resource number in the second sidelink candidate resource subset, or the first sidelink candidate resource subset and the total number of resources in the second subset of sidelink candidate resources.
  • the terminal further includes: the terminal reselects sidelink candidate resources, acquires a new first subset of sidelink candidate resources, or acquires a new subset of sidelink candidate resources.
  • Step 1 When data arrives on the logical channel, the Media Access Control (MAC) layer triggers resource selection.
  • MAC Media Access Control
  • Step 2 The physical layer selects candidate resources, and provides the selected candidate resources to the MAC layer.
  • the candidate resources include a first sidelink candidate resource subset within an activation time indicated by the MAC layer and a second sidelink candidate resource subset within an inactive time indicated by the MAC layer.
  • Step 3 The MAC layer randomly selects target resources for initial transmission and/or retransmission from the first sidelink candidate resource subset. When the number of selectable resources in the first sidelink candidate resource subset is less than the first threshold value, resources for initial transmission and/or retransmission are additionally selected in the second sidelink candidate resource subset.
  • Step 1 When data arrives on the logical channel, the MAC layer triggers resource selection.
  • Step 2 The physical layer selects candidate resources, and provides the selected candidate resources to the MAC layer.
  • the candidate resources include a first sidelink candidate resource subset within an activation time indicated by the MAC layer and a second sidelink candidate resource subset within an inactive time indicated by the MAC layer.
  • Step 3 The MAC layer randomly selects target resources for initial transmission and/or retransmission from the first sidelink candidate resource subset.
  • the number of selectable resources in the first sidelink candidate resource subset is less than the first threshold value, additionally select resources for initial transmission and/or retransmission in the second sidelink candidate resource subset, but the MAC The layer needs to additionally determine whether the resources in the second sidelink candidate resource subset are at a possible future activation time, and if so, select the target resource in the second sidelink candidate resource subset.
  • Embodiment 3 of the present application when selecting a target resource for a single data packet, the terminal selects the target resource according to scheme 2; when selecting target resources for multiple data packets, selects the target resource according to scheme 3.
  • Step 1 When data arrives on the logical channel, the MAC layer triggers resource selection.
  • Step 2 The physical layer selects candidate resources, and provides the selected candidate resources to the MAC layer.
  • the candidate resources include a first sidelink candidate resource subset within an activation time indicated by the MAC layer and a second sidelink candidate resource subset within an inactive time indicated by the MAC layer.
  • Step 3-1 If the MAC layer performs resource selection for a single data packet (single MAC PDU), randomly select target resources for initial transmission and/or retransmission only from the first sidelink candidate resource subset.
  • Step 3-2 If the MAC layer performs resource selection for multiple data packets (multiple MAC PDU), the terminal selects target resources based on the current activation time of the receiving end in the first sidelink candidate resource subset For the initial transmission and/or retransmission of the data packet, the target resource may also be selected in the second sidelink candidate resource subset based on the possible future activation time of the receiving end for the initial transmission and/or retransmission of the data packet Retransmission.
  • the execution subject may be a sidelink resource selection device.
  • the sidelink resource selection method performed by the sidelink resource selection device is taken as an example to illustrate the sidelink resource selection device provided in the embodiment of the present application.
  • the embodiment of the present application also provides a sidelink resource selection device 50, including:
  • An acquiring module 51 configured to acquire a first sidelink candidate resource subset and a second sidelink candidate resource subset, wherein the resources in the first sidelink candidate resource subset are within the activation time of at least one receiving end , the resources in the second sidelink candidate resource subset are not within the activation time of at least one receiving end;
  • the selection module 52 is configured to select a target resource from the first sidelink candidate resource subset and/or the second sidelink candidate resource subset.
  • the activation time of the receiving end is considered, so that the selected resources can be utilized to the greatest extent, and the selected resources are prevented from being unusable due to the inactivation time of the receiving end or even if The problem that the receiver cannot receive it even if it is used.
  • the activation time includes a current activation time and/or a possible future activation time.
  • the current activation time includes at least one of the following:
  • the resource transmission position in the periodic transmission or the resource transmission position of the current period in the periodic transmission;
  • the possible future activation time includes at least one of the following:
  • the selection module 52 includes at least one of the following submodules:
  • the first selection submodule is configured to select a target resource by adopting a scheme one, the scheme one comprising: selecting a target resource in the first subset of sidelink candidate resources for initial transmission and/or retransmission of a data packet, and selecting a target resource from the second sidelink candidate resource subset for initial transmission and/or retransmission of the data packet;
  • the second selection submodule is used to select the target resource by adopting the second scheme, and the second scheme includes: only selecting the target resource in the first sidelink candidate resource subset for the initial transmission and/or retransmission of the data packet;
  • the third selection submodule is configured to select the target resource by adopting the third scheme, and the third scheme includes: selecting the target resource in the first sidelink candidate resource subset based on the current activation time of the receiving end for the initial stage of the data packet transmission and/or retransmission, selecting a target resource from the second sidelink candidate resource subset for initial transmission and/or retransmission of the data packet based on the possible future activation time of the receiving end.
  • the fourth selection submodule is configured to select target resources by adopting scheme four, and scheme four includes: only in the first sidelink candidate resource subset and/or the second sidelink candidate resource subset based on the received The current activation time of the peer selects the target resource for the initial transmission and/or retransmission of the data packet.
  • the selection module 52 is configured to select a target resource from the first sidelink candidate resource subset, the resource number of the selected target resource is greater than or equal to N1, or the ratio of the selected target resource is greater than or equal to X1%; and/or
  • the selecting module 52 is configured to select target resources from the second sidelink candidate resource subset, the number of selected target resources is greater than or equal to N2, or the proportion of selected target resources is greater than or equal to X2%.
  • the first option includes one of the following:
  • the third option includes one of the following:
  • the first subset of sidelink candidate resources select a target resource for the initial transmission of the data packet based on the current activation time of the receiving end, and in the second subset of sidelink candidate resources based on the future possibility of the receiving end
  • the activation time selects the target resource for the initial transmission and/or retransmission of the data packet
  • the selection module 52 is further configured to select target resources only in the first sidelink candidate resource subset for initial transmission and/or retransmission of data packets, if the first sidelink If the resources selected in the link candidate resource subset cannot meet the preset conditions, perform one of the following:
  • first sidelink candidate resource subset and the second sidelink candidate resource subset select target resources for initial transmission and/or retransmission of data packets
  • Trigger resource reselection Trigger resource reselection.
  • the selection module 52 is further configured to select target resources from the first sidelink candidate resource subset for initial transmission and/or retransmission of data packets, After selecting the target resource in the resource subset for the initial transmission and/or retransmission of the data packet, if the resource selected in the first sidelink candidate resource subset and/or the second sidelink candidate resource subset Failure to meet the preset conditions triggers resource reselection.
  • the selection module 52 is further configured to select a target resource based on the current activation time of the receiving end only in the first subset of sidelink candidate resources for the initial transmission and/or retransmission of the data packet , if the resource selected in the first subset of sidelink candidate resources cannot meet the preset condition, perform one of the following:
  • Trigger resource reselection Trigger resource reselection.
  • the selection module 52 is further configured to select a target resource for data based on the current activation time of the receiving end only in the first sidelink candidate resource subset and the second sidelink candidate resource subset.
  • the initial transmission and/or retransmission of the packet, or, the terminal selects the target resource for the initial transmission and/or retransmission of the data packet based on the current activation time of the receiving end only in the second sidelink candidate resource subset After the transmission, if the resources selected in the first sidelink candidate resource subset and/or the second sidelink candidate resource subset cannot meet the preset condition, perform one of the following:
  • Trigger resource reselection Trigger resource reselection.
  • the selection module 52 also includes:
  • the fifth selection submodule is used to select a target resource for a single data packet, select the target resource according to one of the schemes 1, 2, 3 and 4, and select the target resource for multiple data packets,
  • the target resource is selected according to one of scheme 1, scheme 2, scheme 3 and scheme 4, and the scheme for selecting the target resource is different from the scheme for selecting the target resource for a single data packet.
  • the fifth selection submodule is used for the terminal to select the target resource according to scheme 1 when selecting the target resource for a single data packet, and to select the target resource according to scheme 3 or scheme 4 when selecting target resources for multiple data packets target resource;
  • the fifth selection sub-module is used to select the target resource according to the second scheme when selecting the target resource for a single data package, and select the target resource according to the third or fourth scheme when selecting the target resource for multiple data packages.
  • the preset condition includes at least one of the following: the number of resources is less than or equal to the first threshold; the percentage of the number of resources is less than or equal to the second threshold; the interval between resources cannot meet the required value .
  • the sidelink resource selection device 50 further includes:
  • the reselection module is used to reselect sidelink candidate resources after the trigger resource reselection, and acquire a new first sidelink candidate resource subset, or acquire a new first sidelink candidate resource subset set and a second subset of sidelink candidate resources.
  • the apparatus for selecting sidelink resources in this embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component of the electronic device, such as an integrated circuit or a chip.
  • the electronic device may be a terminal, or other devices other than the terminal.
  • the terminal may include, but not limited to, the types of terminal 11 listed above, and other devices may be servers, Network Attached Storage (NAS), etc., which are not specifically limited in this embodiment of the present application.
  • NAS Network Attached Storage
  • the device for selecting sidelink resources provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 4 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a terminal 60, including a processor 61 and a memory 62.
  • the memory 62 stores programs or instructions that can run on the processor 61.
  • the program when the instruction is executed by the processor 601, each step of the above embodiment of the sidelink resource selection method can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, and the processor is used to obtain a first sidelink candidate resource subset and a second sidelink candidate resource subset, wherein the first sidelink The resources in the candidate resource subset are within the activation time of at least one receiving end, and the resources in the second sidelink candidate resource subset are not within the activation time of at least one receiving end; in the first side link candidate resource subset and/or select a target resource from the second sidelink candidate resource subset.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 7 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 70 includes but not limited to: a radio frequency unit 71, a network module 72, an audio output unit 73, an input unit 74, a sensor 75, a display unit 76, a user input unit 77, an interface unit 78, a memory 79 and a processor 710, etc. At least some parts.
  • the terminal 70 can also include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor x10 through the power management system, so that the management of charging, discharging, and function can be realized through the power management system. Consumption management and other functions.
  • the terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
  • the touch panel 771 may include two parts, a touch detection device and a touch controller.
  • Other input devices 772 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 71 may transmit it to the processor 710 for processing; in addition, the radio frequency unit 71 may send uplink data to the network side device.
  • the radio frequency unit 71 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 79 can be used to store software programs or instructions as well as various data.
  • the memory 79 can mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area can store operating systems, application programs or instructions required by at least one function (such as sound playback functions, image playback function, etc.), etc.
  • memory 79 may include volatile memory or nonvolatile memory, or, memory 79 may include both volatile and nonvolatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM erasable programmable read-only memory
  • Electrical EPROM Electrical EPROM
  • EEPROM electronically programmable Erase Programmable Read-Only Memory
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synch link DRAM , SLDRAM) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM Double Data Rate SDRAM
  • DDRSDRAM double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • Synch link DRAM , SLDRAM
  • Direct Memory Bus Random Access Memory Direct Rambus
  • the processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 710 .
  • the processor 710 is configured to obtain a first sidelink candidate resource subset and a second sidelink candidate resource subset, wherein the resources in the first sidelink candidate resource subset are activated by at least one receiving end Within the time period, the resources in the second sidelink candidate resource subset are not within the activation time of at least one receiving end; within the first sidelink candidate resource subset and/or the second sidelink candidate resource subset , select the target resource.
  • the activation time of the receiving end is considered, so that the selected resources can be utilized to the greatest extent, and the selected resources are prevented from being unusable due to the inactivation time of the receiving end or even if The problem that the receiver cannot receive it even if it is used.
  • the activation time includes a current activation time and/or a possible future activation time.
  • the current activation time includes at least one of the following:
  • the resource transmission position in the periodic transmission or the resource transmission position of the current period in the periodic transmission;
  • the possible future activation time includes at least one of the following:
  • a target resource is selected using scheme one, and the scheme one includes: selecting a target resource in the first sidelink candidate resource subset for initial transmission and/or retransmission of a data packet, and selecting a target resource in the second sidelink candidate resource subset selecting a target resource from the resource subset for initial transmission and/or retransmission of the data packet;
  • the second scheme includes: selecting the target resource only in the first sidelink candidate resource subset for the initial transmission and/or retransmission of the data packet;
  • the third scheme includes: selecting the target resource in the first sidelink candidate resource subset based on the current activation time of the receiving end for the initial transmission and/or retransmission of the data packet, and Selecting target resources from the second sidelink candidate resource subset for initial transmission and/or retransmission of data packets based on possible future activation times of the receiving end;
  • Solution 4 The terminal selects target resources for the initial transmission and / or retransmit.
  • the processor 710 is configured to, when selecting a target resource in the first sidelink candidate resource subset, the number of selected target resources is greater than or equal to N1, or the proportion of the selected target resources is greater than or equal to X1%; and/or
  • the processor 710 is configured to, when selecting target resources from the second sidelink candidate resource subset, the number of selected target resources is greater than or equal to N2, or the proportion of selected target resources is greater than or equal to X2%.
  • the first option includes one of the following:
  • the third option includes one of the following:
  • the first subset of sidelink candidate resources select a target resource for the initial transmission of the data packet based on the current activation time of the receiving end, and in the second subset of sidelink candidate resources based on the future possibility of the receiving end
  • the activation time selects the target resource for the initial transmission and/or retransmission of the data packet
  • the processor 710 is further configured to select a target resource only from the first sidelink candidate resource subset for initial transmission and/or retransmission of the data packet, if the first sidelink If the resources selected in the link candidate resource subset cannot meet the preset conditions, perform one of the following:
  • first sidelink candidate resource subset and the second sidelink candidate resource subset select target resources for initial transmission and/or retransmission of data packets
  • Trigger resource reselection Trigger resource reselection.
  • the processor 710 is further configured to select a target resource from the first sidelink candidate resource subset for initial transmission and/or retransmission of the data packet, and select a target resource in the second sidelink candidate resource subset After selecting the target resource in the resource subset for the initial transmission and/or retransmission of the data packet, if the resource selected in the first sidelink candidate resource subset and/or the second sidelink candidate resource subset Failure to meet the preset conditions triggers resource reselection.
  • the processor 710 is further configured to select a target resource based on the current activation time of the receiving end only in the first sidelink candidate resource subset for initial transmission and/or retransmission of the data packet , if the resource selected in the first subset of sidelink candidate resources cannot meet the preset condition, perform one of the following:
  • Trigger resource reselection Trigger resource reselection.
  • the processor 710 is further configured to select a target resource for data based on the current activation time of the receiving end only in the first sidelink candidate resource subset and the second sidelink candidate resource subset.
  • the initial transmission and/or retransmission of the packet, or, the terminal selects the target resource for the initial transmission and/or retransmission of the data packet based on the current activation time of the receiving end only in the second sidelink candidate resource subset After the transmission, if the resources selected in the first sidelink candidate resource subset and/or the second sidelink candidate resource subset cannot meet the preset condition, perform one of the following:
  • Trigger resource reselection Trigger resource reselection.
  • the processor 710 is further configured to select a target resource according to one of schemes 1, 2, 3 and 4 when selecting a target resource for a single data packet, and select a target resource for multiple data packets When a package selects a target resource, select the target resource according to one of scheme 1, scheme 2, scheme 3 and scheme 4, and the scheme for selecting the target resource is different from the scheme for selecting the target resource for a single data package.
  • the processor 710 is configured to select the target resource according to scheme 1 when the terminal selects the target resource for a single data packet, and select the target resource according to scheme 3 or scheme 4 when selecting the target resource for multiple data packets.
  • target resource
  • the processor 710 is configured to select the target resource according to scheme two when selecting a target resource for a single data packet, and select the target resource according to scheme three or scheme four when selecting target resources for multiple data packets.
  • the preset condition includes at least one of the following: the number of resources is less than or equal to the first threshold; the percentage of the number of resources is less than or equal to the second threshold; the interval between resources cannot meet the required value .
  • the processor 710 is further configured to, after the resource reselection is triggered, reselect sidelink candidate resources, acquire a new first subset of sidelink candidate resources, or acquire a new A first subset of sidelink candidate resources and a second subset of sidelink candidate resources.
  • the embodiment of the present application also 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 above embodiment of the sidelink resource selection method is implemented, and The same technical effect can be achieved, so in order to avoid repetition, details will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk, and the like.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above side link resource selection method.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the embodiment of the present application further provides a computer program/program product, 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 realize the above-mentioned side link resource selection
  • a computer program/program product is stored in a storage medium
  • the computer program/program product is executed by at least one processor to realize the above-mentioned side link resource selection
  • the embodiment of the present application further provides a communication device, which is configured to execute each process of the above embodiment of the sidelink resource selection method, and can achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

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Abstract

本申请公开了一种旁链路资源选择方法及装置,属于无线通信技术领域,本申请实施例的旁链路资源选择方法包括:终端获取第一旁链路候选资源子集和第二旁链路候选资源子集,其中,所述第一旁链路候选资源子集中的资源处于至少一个接收端的激活时间内,所述第二旁链路候选资源子集中的资源不处于至少一个接收端的激活时间内;所述终端在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源。

Description

旁链路资源选择方法及装置
相关申请的交叉引用
本申请主张在2022年1月10日在中国提交的中国专利申请No.202210023577.9的优先权,其全部内容通过引用包含于此。
技术领域
本申请属于无线通信技术领域,具体涉及一种旁链路资源选择方法及装置。
背景技术
在旁链路(sidelink)的资源选择中,物理层通过资源选择选出候选资源并提供给高层后,高层选择资源用于初传和/或重传,但目前高层并无明确的选择资源方法,从而导致选出的资源在一些场景下难以被使用和无法被接收端正常接收。
发明内容
本申请实施例提供一种旁链路资源选择方法及装置,能够解决高层如何选择资源用于初传和/或重传,并让选出的资源尽量得到使用以及接收端可以正常接收的问题。
第一方面,提供了一种旁链路资源选择方法,该方法包括:
终端获取第一旁链路候选资源子集和第二旁链路候选资源子集,其中,所述第一旁链路候选资源子集中的资源处于至少一个接收端的激活时间内,所述第二旁链路候选资源子集中的资源不处于至少一个接收端的激活时间内;
所述终端在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源。
第二方面,提供了一种旁链路资源选择装置,包括:
获取模块,用于获取第一旁链路候选资源子集和第二旁链路候选资源子集,其中,所述第一旁链路候选资源子集中的资源处于至少一个接收端的激 活时间内,所述第二旁链路候选资源子集中的资源不处于至少一个接收端的激活时间内;
选择模块,用于在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源。
第三方面,提供了一种终端,该终端包括处理器和存储器,所述存储器存储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第一方面所述的方法的步骤。
第四方面,提供了一种终端,包括处理器及通信接口,其中,所述处理器用于获取第一旁链路候选资源子集和第二旁链路候选资源子集,其中,所述第一旁链路候选资源子集中的资源处于至少一个接收端的激活时间内,所述第二旁链路候选资源子集中的资源不处于至少一个接收端的激活时间内;在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源。
第五方面,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第一方面所述的方法的步骤。
第六方面,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方法。
第七方面,提供了一种计算机程序/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方法的步骤。
第八方面,提供了一种通信设备,所述通信设备被配置成用于执行如第一方面所述的方法的步骤。
在本申请实施例中,在高层进行sidelink的资源选择时,由于考虑了接收端的激活时间,从而使得选择的资源在最大程度上可以得到利用,避免选到的资源由于处于接收端的非激活时间而导致无法使用或者即使使用了接收端也无法接收的问题,提升了资源sidelink选择的可靠性。
附图说明
图1为本申请实施例可应用的一种无线通信系统的框图;
图2为DRX周期的示意图;
图3为DRX相关定时器的示意图;
图4为本申请实施例的旁链路资源选择方法的流程示意图;
图5为本申请实施例的旁链路资源选择装置的结构示意图;
图6为本申请实施例的终端的结构示意图;
图7为本申请实施例的终端的硬件结构示意图。
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术语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,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/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。
值得指出的是,本申请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。本申请实施例中的术语“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(6th Generation,6G)通信系统。
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可以是手机、平板电脑(Tablet Personal Computer,TPC)、膝上型电脑(Laptop Computer,LC)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)、增强现实(Augmented Reality,AR)/虚拟现实(Virtual Reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(Personal Computer,PC)、柜员机或者自助机等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备,其中,接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Network,WLAN)接入点或无线保真(Wireless Fidelity,WiFi)节点等,基站可被称为节点B、演进节点B(eNB)、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)、家用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point,TRP)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系统中的基站为例进行介绍,并不限定基站的具体类型。
下面首先对本申请相关的通信词汇进行说明。
1、sidelink介绍
长期演进(Long Term Evolution,LTE)系统从第12个发布版本开始支持旁链路或译为副链路,侧链路,边链路等(sidelink),用于终端用户设备(User Equipment,UE)之间不通过网络设备进行直接数据传输。
UE通过物理副链路控制信道(Physical Sidelink Control Channel,PSCCH)发送副链路控制信息(Sidelink Control Information,SCI),调度物理副链路共享信道(Physical Sidelink Shared Channel,PSSCH)的传输以发送数据。该传输是以广播形式进行的,接收端并不向发送端反馈接收是否成功。
LTE sidelink设计支持两种资源分配模式,分别是调度资源分配(Scheduled resource allocation)模式与自主资源选择(autonomous resource selection)模式。前者由网络侧设备控制并为每个UE分配资源,后者由UE自主选择资源。
从第15个发布版本开始,LTE支持sidelink载波汇聚(Carrier Aggregation,CA)。LTE sidelink的CA与Uu接口(即downlink与uplink)不同,没有主载波(Primary Component Carrier,PCC)与辅载波(Secondary Component Carrier,SCC)之分。自主资源选择模式的UE在每个CC上独立进行资源感知(sensing)与资源预留。
LTE sidelink的设计适用于特定的公共安全事务(如火灾场所或地震等灾难场所进行紧急通讯),或车联网(Vehicle to Everything,V2X)通信等。车联网通信包括各种业务,例如,基本安全类通信,高级(自动)驾驶,编队,传感器扩展等等。由于LTE sidelink只支持广播通信,因此主要用于基本安全类通信,其他高级V2X业务将通过NR sidelink支持。
5G NR系统可用于LTE所不支持的6GHz以上工作频段,支持更大的工作带宽,但目前版本的NR系统只支持基站与终端间的接口,尚不支持终端之间直接通信的Sidelink接口。
具体的,邻近服务(Proximity Service,ProSe)网络架构中,终端与终端之间的通信接口叫PC5接口,终端与演进的通用通信无线接入网(Evolved Universal Terrestrial Radio Access Network,E-UTRAN)等接入网设备连接的接口叫Uu接口。
2、sidelink的传输形式
目前的sidelink传输也主要分广播(broadcast),组播(groupcast)和单播(unicast)几种传输形式。单播顾名思义就是一对一(one to one)的传输。组播为一对多(one to many)的传输。广播也是one to many的传输,但是广播并没有UE属于同一个组的概念。
目前Sidelink单播和组播通信支持物理层混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)反馈机制。
此外NR sidelink定义了两种模式(mode),一种是mode1,基站调度资源,一种是mode2,UE自己决定使用什么资源进行传输,此时资源信息可能来自基站的广播消息或者预配置。UE如果工作在基站范围内并且与基站有无线资源控制(Radio Resource Control,RRC)连接,可以是mode1和/或mode2,UE如果工作在基站范围内但与基站没有RRC连接,只能工作在mode2。如果UE在基站范围外,那么只能工作在mode2,根据预配置的信息来进行V2X传输。mode2也可以进一步分为2a,2b,2c,2d。
3、资源池
V2X传输的时候有“资源池”的概念,资源池由网络侧发送或预配置,资源池中会包含传输所用的资源和很多传输相关的参数,如在LTE中,包括资源池第一个子帧的偏移值、资源池对应的位图(bitmap)、是否会在相邻资源块(Resource Block,RB)传输PSCCH和PSSCH、子信道的数量和每个子信道的大小以及子信道对应的最低RB索引值、PSCCH pool对应的最低RB索引值、恒定比特率(Constant Bit Rate,CBR)测量的侧链接收信号强度指示(Sidelink Received Signal Strength Indication,S-RSSI)门限、区域标识等等。
网络侧除了给UE配置普通的传输资源池,还可能会配置异常资源池(exceptional pool),异常资源池用于一些特殊的情况,如在切换过程中,或发生无线链路失败(Radio Link Failure,RLF),或是从空闲态(Idle)向连接态(Connected)转换的过程中,等等。
对于在不同网络覆盖范围下的UE,可以基于网络调度来选择资源池以及相应的资源,也可以基于预配置自主选择资源池。资源池的选择可能需要考 虑到UE所处的区域,来选择与所处区域相关的资源池。而在自主选择资源池中的资源时,主要是基于感知(sensing)机制来进行,也有可能是随机选择(如对于异常资源池中的资源选择)。
4、Uu接口下RRC connected状态的DRX
非连续接收(Discontinuous Reception,DRX)的目的是用于节电,处于DRX状态的终端不需要连接监听控制信道。但是如果终端长时间不监听控制信道,那么一旦有数据达到,将会增加数据传输的时延。为了兼顾省电和传输时延,根据终端监听信道的时间长短,5G MAC支持两种DRX周期,DRX长周期和DRX短周期。如果预测终端数据量达到比较频繁或者业务对时延比较敏感,网络可以配置终端使用DRX短周期;如果预测终端数据量比较稀疏且时延不敏感,网络可以配置终端仅使用DRX长周期。为了便于终端进行DRX长周期/DRX短周期的切换,要求DRX长周期是DRX短周期的整数倍,这样保证两者的持续监听时间(onDuration)对齐。
为了支持DRX机制,基站会为终端配置DRX相关定时器和参数,具体包括:
(1)drx-LongCycleStartOffset:用于配置长DRX周期的周期和偏移,周期和偏移的单位是毫秒;
(2)drx-ShortCycle:用于配置短DRX周期的周期和偏移,周期和偏移的单位是毫秒;
(3)drx-ShortCycleTimer:用于控制终端使用短DRX周期的时长,单位为整数,表示终端一旦进入短DRX周期,要维持所述整数倍个短周期;
(4)drx-onDurationTimer:DRX持续监听定时器,在该定时器运行期间,终端需要持续监听网络的物理下行控制信道(Physical Downlink Control Channel,PDCCH)。该定时器单位是毫秒;
(5)drx-SlotOffset:终端启动或重启drx-onDuration Timer的时延,通过该参数设置DRX onDuration的起始时刻相对于子帧起点的偏移量,偏移量是1/32毫秒的整数倍;
(6)drx-InactivityTimer:DRX非激活定时器。该定时器在终端收到针对上/下行新数据调度PDCCH信令后的第一个符号启动或重启,在该定时器 运行期间,终端需要持续监听控制信道,该定时器的单位是毫秒;
(7)drx-HARQ-RTT-TimerDL:下行HARQ RTT定时器,基于每个下行进程维护,定时器长度为从HARQ反馈时刻到收到针对该进程的HARQ重传之间的最小时间间隔。只有下行进程对应的数据未成功解码,终端才会在该进程的HARQ否定响应(Negative ACKnowledge,NACK)反馈之后的第一个符号启动或重启该定时器。如果当前终端只有drx-HARQ-RTT-TimerDL和/或drx-HARQ-RTT-TimerUL运行,则终端无需监听PDCCH控制信道,该定时器单位是符号;
drx-HARQ-RTT-TimerUL:上行HARQ RTT定时器,基于每个上行进程维护,该定时器长度为从PUSCH传输时刻到收到针对该进程的HARQ重传之间的最小时间间隔。上行PUSCH传输后,终端启动或重启针对该上行进程的上行HARQ RTT定时器,如果PUSCH传输使用了PUSCH重复(PUSCH repetition),那么上行HARQ RTT定时器在PUSCH第一次重复后启动或重启,以保证基站提前解析出PUSCH后,能够及时终止PUSCH重复传输。该定时器单位是符号;
(8)drx-RetransmissionTimerDL:下行重传定时器,drx-HARQ-RTT-TimerDL超时后的下一个符号启动或重启该定时器。该定时器运行期间,终端监听网络的控制信道,如果接收到针对该进程的下行调度信息或者下行configured grant,则停止该定时器。该定时器单位是时隙(time slot);
(9)drx-RetransmissionTimerUL:上行重传定时器,drx-HARQ-RTT-TimerUL超时后的下一个符号启动或重启该定时器。该定时器运行期间,终端监听网络的控制信道,如果接收到针对该进程的上行调度信息或者上行configured grant,则停止运行。该定时器单位是时隙(time slot)。
上述为DRX的基本机制和涉及到的相关参数,所有这些参数构成一套DRX配置,UE按照该配置进行相应的非连续接收操作。
请参考图2,图2为DRX周期(Cycle)的示意图,从图2中可以看出,在时域上时间被划分成一个个连续的DRX Cycle。
请参考图3,图3为DRX相关定时器的示意图。
5、sidelink DRX
目前sidelink也对于单播组播和广播都支持了DRX配置。对于持续监听计时器(on-duration timer),目前三种类型(cast type)都支持。对于不活动计时器(Inactivity timer),单播和组播支持,广播暂时不支持。
此外,与Uu不同,因为在sidelink上收发端都是UE,因此接收端UE的行为和发送端UE的行为,可能都需要定义。目前只讨论了,对于接收端(RX)UE,启动或重启inactivity timer的时间在收到第一旁链路控制信息(first Sidelink Control Information,first SCI)和第二旁链路控制信息(second Sidelink Control Information,second SCI)之后的下一个时隙(slot)或者符号(symbol)。
6、sidelink资源选择
由于sidelink引入了DRX,那么接收端(RX)UE不是一直接收的状态,所以目前同意了在发送端(Transmit,TX)进行数据发送前,需要先考虑接收端(Receiver,RX)UE的激活时间,并选择相应的激活时间内的资源进行传输,来使收发可以正常进行。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的旁链路资源选择方法及装置进行详细地说明。
请参考图4,本申请实施例提供一种旁链路资源选择方法,包括:
步骤41:终端获取第一旁链路候选资源子集和第二旁链路候选资源子集,其中,所述第一旁链路候选资源子集中的资源处于至少一个接收端的激活时间内,所述第二旁链路候选资源子集中的资源不处于至少一个接收端的激活时间内;
本申请实施例中,可选的,所述第一旁链路候选资源子集中的资源处于至少一个接收端的激活时间内,可以是:所述第一旁链路候选资源子集中的资源处于全部接收端的激活时间内,或者,第一旁链路候选资源子集中的资源处于部分接收端的激活时间内,或者,第一旁链路候选资源子集中的资源处于某个接收端的激活时间内(此时,可以是每个接收端对应一个第一旁链路候选资源子集)。
可选的,所述第二旁链路候选资源子集中的资源不处于至少一个接收端 的激活时间内,可以是:所述第二旁链路候选资源子集中的资源不处于全部接收端的激活时间内,或者,所述第二旁链路候选资源子集中的资源不处于部分接收端的激活时间内,或者,所述第二旁链路候选资源子集中的资源某个接收端的激活时间内(此时,可以是每个接收端对应一个第二旁链路候选资源子集)。
步骤42:所述终端在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源。
可选的,所述目标资源用于数据包的初传和/或重传。
本申请实施例中,在高层进行sidelink的资源选择时,考虑接收端的激活时间,使选择的资源最大程度上可以得到利用,避免选到的资源由于处于接收端的非激活时间而导致无法使用或者即使使用了接收端也无法接收的问题。
本申请实施例中,可选的,所述激活时间包括当前激活时间和/或未来可能的激活时间。
可选的,所述当前激活时间包括以下至少之一:
DRX持续监听定时器(drx-onDurationTimer)运行期间,或者,当前DRX周期的DRX持续监听定时器运行期间;
正在运行的DRX非激活定时器(drx-InactivityTimer)运行期间;
正在运行的DRX重传定时器(drx-RetransmissionTimer)运行期间;
周期性传输中的资源传输位置,或者,周期性传输中的当前周期的资源传输位置;
信道状态信息(Channel State Information,CSI)请求发送时刻到接收到信道状态信息报告时刻期间。
可选的,所述未来可能的激活时间包括以下至少之一:
非当前DRX周期的DRX持续监听定时器运行期间;
当前还未启动的DRX非激活定时器运行期间;
当前还未启动的DRX重传定时器运行期间;
周期性传输中的非当前周期的资源传输位置;
信道状态信息请求发送时刻到接收到信道状态信息报告时刻期间。
本申请实施例中,可选的,所述终端在所述第一旁链路候选资源子集和/ 或第二旁链路候选资源子集中,选择目标资源,包括以下至少之一:
方案一:所述终端在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传;
本申请实施例中,可选的,所述方案一包括以下之一:
1)所述终端在所述第一旁链路候选资源子集和第二旁链路候选资源子集中选择目标资源用于数据包的初传和重传;
该种情况下,高层可能不再区分所述第一旁链路候选资源子集和第二旁链路候选资源子集,而是将所述第一旁链路候选资源子集和第二旁链路候选资源子集作为一个整体进行资源选择。
2)所述终端在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的重传。
方案二:所述终端仅在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传;
方案三:所述终端在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传。
本申请实施例中,可选的,所述方案三包括以下之一:
1)所述终端在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
2)所述终端在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和重传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传。
方案四:所述终端仅在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初 传和/或重传。
可选的,所述终端在所述第一旁链路候选资源子集中选择目标资源时,选择的目标资源的资源数量大于等于N1,或者,选择的目标资源的比例大于等于X1%;其中,N1为大于或等于1的正整数。
和/或
所述终端在所述第二旁链路候选资源子集中选择目标资源时,选择的目标资源的资源数量大于等于N2,或者,选择的目标资源的比例大于等于X2%。其中,N2为大于或等于1的正整数。
本申请实施例中,可选的,所述终端仅在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,之后还包括:若在所述第一旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
1)在所述第一旁链路候选资源子集和第二旁链路候选资源子集中,选择目标资源用于数据包的初传和/或重传;
该种情况下,高层可能不再区分所述第一旁链路候选资源子集和第二旁链路候选资源子集,而是将所述第一旁链路候选资源子集和第二旁链路候选资源子集作为一个整体进行资源选择。
2)在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的重传;
3)在所述第二旁链路候选资源子集中,选择目标资源用于数据包的初传和/或重传;
4)触发资源重选。
从而可以避免若在第一旁链路候选资源子集中选择的资源无法满足预设条件时,无法进行正常的数据发送的问题。
本申请实施例中,可选的,所述终端在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,之后还包括:
若在所述第一旁链路候选资源子集和/或所述第二旁链路候选资源子集中选择的资源无法满足预设条件,触发资源重选。
从而可以避免若在第一旁链路候选资源子集和/或所述第二旁链路候选 资源子集中选择的资源无法满足预设条件时,无法进行正常的数据发送的问题。
本申请实施例中,可选的,所述终端仅在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,之后还包括:
若在所述第一旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
在所述第二旁链路候选资源子集中,基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集和所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
在所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
触发资源重选。
本申请实施例中,可选的,所述终端仅在所述第一旁链路候选资源子集和第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,或者,所述终端仅在所述第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,之后还包括:
若在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
在所述第一旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集和所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
在所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
触发资源重选。
从而可以避免若在第一旁链路候选资源子集中基于所述接收端的当前激活时间选择的资源无法满足预设条件时,无法进行正常的数据发送的问题。
本申请实施例中,可选的,所述终端在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源,包括:
所述终端为单独的一个数据包选择目标资源时,按照方案一、方案二、方案三和方案四中的其中之一选择目标资源,为多个数据包选择目标资源时,按照方案一、方案二、方案三和方案四中的其中之一选择目标资源,且选择目标资源的方案不同于为单独的一个数据包选择目标资源的方案。
本申请实施例中,可选的,所述终端在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源,包括以下之一:
所述终端为单独的一个数据包选择目标资源时,按照方案一选择目标资源,为多个数据包选择目标资源时,按照方案三或方案四选择目标资源;
所述终端为单独的一个数据包选择目标资源时,按照方案二选择目标资源,为多个数据包选择目标资源时,按照方案三或方案四选择目标资源。
本申请实施例中,可选的,所述预设条件包括以下至少之一:
资源数小于或等于第一门限值;
资源数所占的百分比小于或等于第二门限值;
资源间的间隔不能满足需求的数值。
其中,上述资源所占的百分比在计算时,分母可以是第一旁链路候选资源子集中的资源数目,第二旁链路候选资源子集中的资源数目,或者,第一旁链路候选资源子集和第二旁链路候选资源子集中的资源总数目。
本申请实施例中,可选的,所述触发资源重选之后还包括:所述终端重新进行旁链路候选资源的选择,获取新的第一旁链路候选资源子集,或者,获取新的第一旁链路候选资源子集和第二旁链路候选资源子集。
下面结合具体应用场景,对本申请的旁链路资源选择方法进行说明。
本申请实施例一:方案二
步骤1:逻辑信道有数据到达,媒体接入控制(Media Access Control,MAC)层触发资源选择。
步骤2:物理层进行候选资源的选择,并将选完后的候选资源提供给MAC层。其中,候选资源包括处于MAC层指示的激活时间内的第一旁链路候选资源子集和处于MAC层指示的非激活时间内的第二旁链路候选资源子集。
步骤3:MAC层在第一旁链路候选资源子集中随机选择用于初传和/或重传的目标资源。当第一旁链路候选资源子集中可选择的资源数小于第一门限值时,则额外在第二旁链路候选资源子集中选择用于初传和/或重传的资源。
本申请实施方式二:方案二+方案三
步骤1:逻辑信道有数据到达,MAC层触发资源选择。
步骤2:物理层进行候选资源的选择,并将选完后的候选资源提供给MAC层。其中,候选资源包括处于MAC层指示的激活时间内的第一旁链路候选资源子集和处于MAC层指示的非激活时间内的第二旁链路候选资源子集。
步骤3:MAC层在第一旁链路候选资源子集中随机选择用于初传和/或重传的目标资源。当第一旁链路候选资源子集中可选择的资源数小于第一门限值时,则额外在第二旁链路候选资源子集中选择用于初传和/或重传的资源,但是MAC层需要额外判断第二旁链路候选资源子集中的资源是否处于未来可能的激活时间,若是,才在第二旁链路候选资源子集中选择目标资源。
本申请实施方式三:终端为单独的一个数据包选择目标资源时,按照方案二选择目标资源,为多个数据包选择目标资源时,按照方案三选择目标资源。
步骤1:逻辑信道有数据到达,MAC层触发资源选择。
步骤2:物理层进行候选资源的选择,并将选完后的候选资源提供给MAC层。其中,候选资源包括处于MAC层指示的激活时间内的第一旁链路候选资源子集和处于MAC层指示的非激活时间内的第二旁链路候选资源子集。
步骤3-1:如果MAC层为单独的一个数据包(single MAC PDU)进行资源选择,则仅在第一旁链路候选资源子集中随机选择用于初传和/或重传的目标资源。
步骤3-2:如果MAC层为多个数据包(multiple MAC PDU)进行资源选择,则所述终端除了在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,也可以在所述第二旁 链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传。
本申请实施例提供的旁链路资源选择方法,执行主体可以为旁链路资源选择装置。本申请实施例中以旁链路资源选择装置执行旁链路资源选择方法为例,说明本申请实施例提供的旁链路资源选择装置。
请参考图5,本申请实施例还提供一种旁链路资源选择装置50,包括:
获取模块51,用于获取第一旁链路候选资源子集和第二旁链路候选资源子集,其中,所述第一旁链路候选资源子集中的资源处于至少一个接收端的激活时间内,所述第二旁链路候选资源子集中的资源不处于至少一个接收端的激活时间内;
选择模块52,用于在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源。
本申请实施例中,在高层进行sidelink的资源选择时,考虑接收端的激活时间,使选择的资源最大程度上可以得到利用,避免选到的资源由于处于接收端的非激活时间而导致无法使用或者即使使用了接收端也无法接收的问题。
可选的,所述激活时间包括当前激活时间和/或未来可能的激活时间。
可选的,所述当前激活时间包括以下至少之一:
DRX持续监听定时器运行期间,或者,当前DRX周期的DRX持续监听定时器运行期间;
正在运行的DRX非激活定时器运行期间;
正在运行的DRX重传定时器运行期间;
周期性传输中的资源传输位置,或者,周期性传输中的当前周期的资源传输位置;
信道状态信息请求发送时刻到接收到信道状态信息报告时刻期间。
可选的,所述未来可能的激活时间包括以下至少之一:
非当前DRX周期的DRX持续监听定时器运行期间;
当前还未启动的DRX非激活定时器运行期间;
当前还未启动的DRX重传定时器运行期间;
周期性传输中的非当前周期的资源传输位置;
信道状态信息请求发送时刻到接收到信道状态信息报告时刻期间。
可选的,所述选择模块52包括以下子模块中的至少之一:
第一选择子模块,用于采用方案一选择目标资源,所述方案一包括:在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传;
第二选择子模块,用于采用方案二选择目标资源,所述方案二包括:仅在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传;
第三选择子模块,用于采用方案三选择目标资源,所述方案三包括:在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传。
第四选择子模块,用于采用方案四选择目标资源,所述方案四包括:仅在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传。
可选的,所述选择模块52,用于在所述第一旁链路候选资源子集中选择目标资源时,选择的目标资源的资源数量大于等于N1,或者,选择的目标资源的比例大于等于X1%;和/或
所述选择模块52,用于在所述第二旁链路候选资源子集中选择目标资源时,选择的目标资源的资源数量大于等于N2,或者,选择的目标资源的比例大于等于X2%。
可选的,所述方案一包括以下之一:
在所述第一旁链路候选资源子集和第二旁链路候选资源子集中选择目标资源用于数据包的初传和重传;
在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的重传。
可选的,所述方案三包括以下之一:
在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择 目标资源用于数据包的初传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和重传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传。
可选的,所述选择模块52,还用于仅在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传之后,若在所述第一旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
在所述第一旁链路候选资源子集和第二旁链路候选资源子集中,选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的重传;
在所述第二旁链路候选资源子集中,选择目标资源用于数据包的初传和/或重传;
触发资源重选。
可选的,所述选择模块52,还用于在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传之后,若在所述第一旁链路候选资源子集和/或所述第二旁链路候选资源子集中选择的资源无法满足预设条件,触发资源重选。
可选的,所述选择模块52,还用于仅在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传之后,若在所述第一旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
在所述第二旁链路候选资源子集中,基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集和所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
在所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
触发资源重选。
可选的,所述选择模块52,还用于仅在所述第一旁链路候选资源子集和第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,或者,所述终端仅在所述第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传之后,若在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
在所述第一旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集和所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
在所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
触发资源重选。
可选的,所述选择模块52还包括:
第五选择子模块,用于为单独的一个数据包选择目标资源时,按照方案一、方案二、方案三和方案四中的其中之一选择目标资源,为多个数据包选择目标资源时,按照方案一、方案二、方案三和方案四中的其中之一选择目标资源,且选择目标资源的方案不同于为单独的一个数据包选择目标资源的方案。
可选的,第五选择子模块,用于所述终端为单独的一个数据包选择目标资源时,按照方案一选择目标资源,为多个数据包选择目标资源时,按照方案三或方案四选择目标资源;
或者,
第五选择子模块,用于为单独的一个数据包选择目标资源时,按照方案 二选择目标资源,为多个数据包选择目标资源时,按照方案三或方案四选择目标资源。
可选的,所述预设条件包括以下至少之一:资源数小于或等于第一门限值;资源数所占的百分比小于或等于第二门限值;资源间的间隔不能满足需求的数值。
可选的,所述旁链路资源选择装置50还包括:
重选模块,用于所述触发资源重选之后,重新进行旁链路候选资源的选择,获取新的第一旁链路候选资源子集,或者,获取新的第一旁链路候选资源子集和第二旁链路候选资源子集。
本申请实施例中的旁链路资源选择装置可以是电子设备,例如具有操作系统的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。该电子设备可以是终端,也可以为除终端之外的其他设备。示例性的,终端可以包括但不限于上述所列举的终端11的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
本申请实施例提供的旁链路资源选择装置能够实现图4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。
可选的,如图6所示,本申请实施例还提供一种终端60,包括处理器61和存储器62,存储器62上存储有可在所述处理器61上运行的程序或指令,该程序或指令被处理器601执行时实现上述旁链路资源选择方法实施例的各个步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种终端,包括处理器和通信接口,处理器用于获取第一旁链路候选资源子集和第二旁链路候选资源子集,其中,所述第一旁链路候选资源子集中的资源处于至少一个接收端的激活时间内,所述第二旁链路候选资源子集中的资源不处于至少一个接收端的激活时间内;在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源。该终端实施例与上述终端侧方法实施例对应,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7为实现本申请实施例的一种终端的硬件结构示意图。
该终端70包括但不限于:射频单元71、网络模块72、音频输出单元73、 输入单元74、传感器75、显示单元76、用户输入单元77、接口单元78、存储器79以及处理器710等中的至少部分部件。
本领域技术人员可以理解,终端70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x 10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7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,本申请实施例中,输入单元74可以包括图形处理单元(Graphics Processing Unit,GPU)741和麦克风742,图形处理器741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76可包括显示面板761,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761。用户输入单元77包括触控面板771以及其他输入设备772中的至少一种。触控面板771,也称为触摸屏。触控面板771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772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。
本申请实施例中,射频单元71接收来自网络侧设备的下行数据后,可以传输给处理器710进行处理;另外,射频单元71可以向网络侧设备发送上行数据。通常,射频单元71包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器79可用于存储软件程序或指令以及各种数据。存储器79可主要包括存储程序或指令的第一存储区和存储数据的第二存储区,其中,第一存储区可存储操作系统、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79可以包括易失性存储器或非易失性存储器,或者,存储器79可以包括易失性和非易失性存储器两者。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。易失性存储器可以是随机存取存储器(Random Access Memory,RAM), 静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例中的存储器79包括但不限于这些和任意其它适合类型的存储器。
处理器710可包括一个或多个处理单元;可选的,处理器710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涉及操作系统、用户界面和应用程序等的操作,调制解调处理器主要处理无线通信信号,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710中。
其中,处理器710,用于获取第一旁链路候选资源子集和第二旁链路候选资源子集,其中,所述第一旁链路候选资源子集中的资源处于至少一个接收端的激活时间内,所述第二旁链路候选资源子集中的资源不处于至少一个接收端的激活时间内;在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源。
本申请实施例中,在高层进行sidelink的资源选择时,考虑接收端的激活时间,使选择的资源最大程度上可以得到利用,避免选到的资源由于处于接收端的非激活时间而导致无法使用或者即使使用了接收端也无法接收的问题。
可选的,所述激活时间包括当前激活时间和/或未来可能的激活时间。
可选的,所述当前激活时间包括以下至少之一:
DRX持续监听定时器运行期间,或者,当前DRX周期的DRX持续监听定时器运行期间;
正在运行的DRX非激活定时器运行期间;
正在运行的DRX重传定时器运行期间;
周期性传输中的资源传输位置,或者,周期性传输中的当前周期的资源传输位置;
信道状态信息请求发送时刻到接收到信道状态信息报告时刻期间。
可选的,所述未来可能的激活时间包括以下至少之一:
非当前DRX周期的DRX持续监听定时器运行期间;
当前还未启动的DRX非激活定时器运行期间;
当前还未启动的DRX重传定时器运行期间;
周期性传输中的非当前周期的资源传输位置;
信道状态信息请求发送时刻到接收到信道状态信息报告时刻期间。可选的,所述处理器710,用于执行以下操作中的至少之一:
采用方案一选择目标资源,所述方案一包括:在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传;
采用方案二选择目标资源,所述方案二包括:仅在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传;
采用方案三选择目标资源,所述方案三包括:在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
方案四:所述终端仅在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传。
可选的,所述处理器710,用于在所述第一旁链路候选资源子集中选择目标资源时,选择的目标资源的资源数量大于等于N1,或者,选择的目标资源的比例大于等于X1%;和/或
所述处理器710,用于在所述第二旁链路候选资源子集中选择目标资源时,选择的目标资源的资源数量大于等于N2,或者,选择的目标资源的比例大于等于X2%。
可选的,所述方案一包括以下之一:
在所述第一旁链路候选资源子集和第二旁链路候选资源子集中选择目标资源用于数据包的初传和重传;
在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的重传。
可选的,所述方案三包括以下之一:
在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和重传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传。
可选的,所述处理器710,还用于仅在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传之后,若在所述第一旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
在所述第一旁链路候选资源子集和第二旁链路候选资源子集中,选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的重传;
在所述第二旁链路候选资源子集中,选择目标资源用于数据包的初传和/或重传;
触发资源重选。
可选的,所述处理器710,还用于在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传之后,若在所述第一旁链路候选资源子集和/或所述第二旁链路候选资源子集中选择的资源无法满足预设条件,触发资源重选。
可选的,所述处理器710,还用于仅在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传之后,若在所述第一旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
在所述第二旁链路候选资源子集中,基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集和所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
在所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
触发资源重选。
可选的,所述处理器710,还用于仅在所述第一旁链路候选资源子集和第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,或者,所述终端仅在所述第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传之后,若在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
在所述第一旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
在所述第一旁链路候选资源子集和所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
在所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
触发资源重选。
可选的,所所述处理器710,还用于为单独的一个数据包选择目标资源时,按照方案一、方案二、方案三和方案四中的其中之一选择目标资源,为多个数据包选择目标资源时,按照方案一、方案二、方案三和方案四中的其中之一选择目标资源,且选择目标资源的方案不同于为单独的一个数据包选择目标资源的方案。
可选的,所述处理器710,用于所述终端为单独的一个数据包选择目标资源时,按照方案一选择目标资源,为多个数据包选择目标资源时,按照方案三或方案四选择目标资源;
或者,
所述处理器710,用于为单独的一个数据包选择目标资源时,按照方案二选择目标资源,为多个数据包选择目标资源时,按照方案三或方案四选择目标资源。
可选的,所述预设条件包括以下至少之一:资源数小于或等于第一门限值;资源数所占的百分比小于或等于第二门限值;资源间的间隔不能满足需求的数值。
可选的,所所述处理器710,还用于所述触发资源重选之后,重新进行旁链路候选资源的选择,获取新的第一旁链路候选资源子集,或者,获取新的第一旁链路候选资源子集和第二旁链路候选资源子集。
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旁链路资源选择方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,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ROM、随机存取存储器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,实现上述旁链路资源选择方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
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/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上述旁链路资源选择方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例另提供了一种通信设备,被配置为执行上述旁链路资源选择方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
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。此外,本申请中的各实施例、各实施方式、各方案之间可以单独实现,也可以通过任意组合的方式共同实现,本申请对此不作任何限制。
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计算机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 (22)

  1. 一种旁链路资源选择方法,包括:
    终端获取第一旁链路候选资源子集和第二旁链路候选资源子集,其中,所述第一旁链路候选资源子集中的资源处于至少一个接收端的激活时间内,所述第二旁链路候选资源子集中的资源不处于至少一个接收端的激活时间内;
    所述终端在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源。
  2. 根据权利要求1所述的方法,其中,所述激活时间包括当前激活时间和/或未来可能的激活时间。
  3. 根据权利要求2所述的方法,其中,所述当前激活时间包括以下至少之一:
    非连续接收DRX持续监听定时器运行期间,或者,当前DRX周期的DRX持续监听定时器运行期间;
    正在运行的DRX非激活定时器运行期间;
    正在运行的DRX重传定时器运行期间;
    周期性传输中的资源传输位置,或者,周期性传输中的当前周期的资源传输位置;
    信道状态信息请求发送时刻到接收到信道状态信息报告时刻期间。
  4. 根据权利要求2所述的方法,其中,所述未来可能的激活时间包括以下至少之一:
    非当前DRX周期的DRX持续监听定时器运行期间;
    当前还未启动的DRX非激活定时器运行期间;
    当前还未启动的DRX重传定时器运行期间;
    周期性传输中的非当前周期的资源传输位置;
    信道状态信息请求发送时刻到接收到信道状态信息报告时刻期间。
  5. 根据权利要求2所述的方法,其中,所述终端在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源,包括以下至少之一:
    方案一:所述终端在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传;
    方案二:所述终端仅在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传;
    方案三:所述终端在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
    方案四:所述终端仅在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传。
  6. 根据权利要求5所述的方法,其中,
    所述终端在所述第一旁链路候选资源子集中选择目标资源时,选择的目标资源的资源数量大于等于N1,或者,选择的目标资源的比例大于等于X1%;
    和/或
    所述终端在所述第二旁链路候选资源子集中选择目标资源时,选择的目标资源的资源数量大于等于N2,或者,选择的目标资源的比例大于等于X2%。
  7. 根据权利要求5所述的方法,其中,所述方案一包括以下之一:
    所述终端在所述第一旁链路候选资源子集和第二旁链路候选资源子集中选择目标资源用于数据包的初传和重传;
    所述终端在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的重传。
  8. 根据权利要求5所述的方法,其中,所述方案三包括以下之一:
    所述终端在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
    所述终端在所述第一旁链路候选资源子集中基于所述接收端的当前激活 时间选择目标资源用于数据包的初传和重传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传。
  9. 根据权利要求5所述的方法,其中,所述终端仅在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,之后还包括:
    若在所述第一旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
    在所述第一旁链路候选资源子集和第二旁链路候选资源子集中,选择目标资源用于数据包的初传和/或重传;
    在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的重传;
    在所述第二旁链路候选资源子集中,选择目标资源用于数据包的初传和/或重传;
    触发资源重选。
  10. 根据权利要求5所述的方法,其中,所述终端在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,之后还包括:
    若在所述第一旁链路候选资源子集和/或所述第二旁链路候选资源子集中选择的资源无法满足预设条件,触发资源重选。
  11. 根据权利要求5所述的方法,其中,所述终端仅在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,之后还包括:
    若在所述第一旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
    在所述第二旁链路候选资源子集中,基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传;
    在所述第一旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
    在所述第一旁链路候选资源子集和所述第二旁链路候选资源子集中,基 于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
    在所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
    触发资源重选。
  12. 根据权利要求5所述的方法,其中,所述终端仅在所述第一旁链路候选资源子集和第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,或者,所述终端仅在所述第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传,之后还包括:
    若在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中选择的资源无法满足预设条件,执行以下之一:
    在所述第一旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
    在所述第一旁链路候选资源子集和所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
    在所述第二旁链路候选资源子集中,基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和重传;
    触发资源重选。
  13. 根据权利要求5所述的方法,其中,所述终端在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源,包括:
    所述终端为单独的一个数据包选择目标资源时,按照方案一、方案二、方案三和方案四中的其中之一选择目标资源,为多个数据包选择目标资源时,按照方案一、方案二、方案三和方案四中的其中之一选择目标资源,且选择目标资源的方案不同于为单独的一个数据包选择目标资源的方案。
  14. 根据权利要求13所述的方法,其中,所述终端在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源,包括以下之一:
    所述终端为单独的一个数据包选择目标资源时,按照方案一选择目标资源,为多个数据包选择目标资源时,按照方案三或方案四选择目标资源;
    所述终端为单独的一个数据包选择目标资源时,按照方案二选择目标资 源,为多个数据包选择目标资源时,按照方案三或方案四选择目标资源。
  15. 根据权利要求9-12任一项所述的方法,其中,所述预设条件包括以下至少之一:资源数小于或等于第一门限值;资源数所占的百分比小于或等于第二门限值;资源间的间隔不能满足需求的数值。
  16. 根据权利要求9-12任一项所述的方法,其中,所述触发资源重选之后还包括:
    所述终端重新进行旁链路候选资源的选择,获取新的第一旁链路候选资源子集,或者,获取新的第一旁链路候选资源子集和第二旁链路候选资源子集。
  17. 一种旁链路资源选择装置,包括:
    获取模块,用于获取第一旁链路候选资源子集和第二旁链路候选资源子集,其中,所述第一旁链路候选资源子集中的资源处于至少一个接收端的激活时间内,所述第二旁链路候选资源子集中的资源不处于至少一个接收端的激活时间内;
    选择模块,用于在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中,选择目标资源。
  18. 根据权利要求17所述的装置,其中,所述激活时间包括当前激活时间和/或未来可能的激活时间。
  19. 根据权利要求18所述的装置,其中,所述选择模块,包括以下子模块中的至少之一:
    第一选择子模块,用于采用方案一选择目标资源,所述方案一包括:在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传;
    第二选择子模块,用于采用方案二选择目标资源,所述方案二包括:仅在所述第一旁链路候选资源子集中选择目标资源用于数据包的初传和/或重传;
    第三选择子模块,用于采用方案三选择目标资源,所述方案三包括:在所述第一旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资 源用于数据包的初传和/或重传,在所述第二旁链路候选资源子集中基于所述接收端的未来可能的激活时间选择目标资源用于数据包的初传和/或重传;
    第四选择子模块,用于采用方案四选择目标资源,所述方案四包括:仅在所述第一旁链路候选资源子集和/或第二旁链路候选资源子集中基于所述接收端的当前激活时间选择目标资源用于数据包的初传和/或重传。
  20. 根据权利要求19所述的装置,其中,所述选择模块还包括:
    第五选择子模块,用于为单独的一个数据包选择目标资源时,按照方案一、方案二、方案三和方案四中的其中之一选择目标资源,为多个数据包选择目标资源时,按照方案一、方案二、方案三和方案四中的其中之一选择目标资源,且选择目标资源的方案不同于为单独的一个数据包选择目标资源的方案。
  21. 一种终端,包括处理器和存储器,所述存储器存储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1-16任一项所述的旁链路资源选择方法的步骤。
  22. 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1-16任一项所述的旁链路资源选择方法的步骤。
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Title
APPLE: "On Sidelink Resource Allocation for Power Saving", 3GPP TSG RAN WG1#160B-E, R1-2110053, 2 October 2021 (2021-10-02), XP052058989 *

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