WO2022205239A1 - 边链路非连续接收命令的触发方法、装置和系统 - Google Patents

边链路非连续接收命令的触发方法、装置和系统 Download PDF

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Publication number
WO2022205239A1
WO2022205239A1 PCT/CN2021/084768 CN2021084768W WO2022205239A1 WO 2022205239 A1 WO2022205239 A1 WO 2022205239A1 CN 2021084768 W CN2021084768 W CN 2021084768W WO 2022205239 A1 WO2022205239 A1 WO 2022205239A1
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WIPO (PCT)
Prior art keywords
side link
terminal device
discontinuous reception
mac
reception command
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PCT/CN2021/084768
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English (en)
French (fr)
Inventor
李国荣
纪鹏宇
贾美艺
易粟
王昕�
Original Assignee
富士通株式会社
李国荣
纪鹏宇
贾美艺
易粟
王昕�
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士通株式会社, 李国荣, 纪鹏宇, 贾美艺, 易粟, 王昕� filed Critical 富士通株式会社
Priority to PCT/CN2021/084768 priority Critical patent/WO2022205239A1/zh
Priority to EP21933899.3A priority patent/EP4319466A1/en
Priority to JP2023558264A priority patent/JP2024511608A/ja
Priority to KR1020237032596A priority patent/KR20230146656A/ko
Priority to CN202180094441.0A priority patent/CN116941323A/zh
Publication of WO2022205239A1 publication Critical patent/WO2022205239A1/zh
Priority to US18/370,639 priority patent/US20240015840A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • 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
    • H04W72/40Resource 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • 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
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the embodiments of the present application relate to the field of communication technologies.
  • an enhancement to the new radio sidelink is power saving, which enables end devices with battery constraints to perform sidelink operations in a power efficient manner.
  • the design of the NR sidelink of the existing standard Release 16 (Release 16) is based on the assumption that terminal equipment is always online when performing sidelink operations, such as focusing only on terminal equipment installed in automobiles with sufficient battery capacity.
  • the vulnerable road users (VRUs), pedestrian users, and end devices that need to minimize power consumption in public safety and commercial scenarios in Vehicle to Everything (V2X) usage scenarios A power saving plan is required.
  • the terminal equipment can be configured with Downlink Discontinuous Reception (DRX).
  • DRX Downlink Discontinuous Reception
  • the terminal equipment does not need to continuously monitor the Physical Downlink Control Channel (PDCCH). ).
  • PDCH Physical Downlink Control Channel
  • SL DRX sidelink DRX
  • RAN2 Radio Access Network Group 2
  • 3GPP 3rd Generation Partnership Project
  • SL DRX command MAC CE can be sent by the sending device (Tx UE) to the receiving device (Rx UE), it is not clear when the sending device triggers the SL DRX command MAC CE;
  • embodiments of the present application provide a method, device, and system for triggering a discontinuous reception command of a side link.
  • a device for triggering a side link discontinuous reception command (SL DRX command) is provided, which is configured on a first terminal device, and the first terminal device performs a side link with a second terminal device.
  • transmission, the second terminal equipment uses side link discontinuous reception (SL DRX), wherein the apparatus comprises:
  • a triggering unit which triggers a side link discontinuous reception command when the MAC layer of the first terminal device satisfies one of the following conditions:
  • a destination (destination) or a source-destination pair (a pair of source ID and destination ID) or a logical channel corresponding to a PC5 quality of service indicator (PC5 5G QoS identifier, PQI) has no data to be sent, or there is no data to be sent in the current service cycle data is pending, or no data is pending for a period of time in the past or when a timer expires;
  • a target or source-target pair has no MAC CEs to send, or no MAC CEs to send during the current service period, or no MAC CEs to send during the past period of time or when a timer expires;
  • the upper layer of the first terminal device indicates that the MAC layer of the first terminal device has no data to send or no data to send within a period of time.
  • a triggering device for a scheduling request corresponding to a side link discontinuous reception command is provided, which is configured on a first terminal device, and the first terminal device performs a side link with a second terminal device.
  • transmission, the second terminal equipment uses side link discontinuous reception (SL DRX), wherein the apparatus comprises:
  • the first triggering unit after triggering the side link discontinuous reception command, triggers the first scheduling request corresponding to the side link discontinuous reception command.
  • a resource pool selection device which is configured on a first terminal device, the first terminal device performs side link transmission with a second terminal device, and the second terminal device uses Sidelink discontinuous reception (SL DRX), wherein the apparatus comprises:
  • the selection unit if the sidelink logical channel has data to be sent and a sidelink discontinuous reception command is triggered, the selection unit is based on the sidelink logical channel and the priority of the sidelink discontinuous reception command , selecting a resource pool according to the HARQ feedback attribute of the side link logical channel or according to the HARQ feedback attribute of the side link discontinuous reception command.
  • a logical channel selection apparatus which is configured in a first terminal device, the first terminal device performs side link transmission with a second terminal device, and the second terminal device uses edge link discontinuous reception (SL DRX), wherein the apparatus further comprises:
  • a determination unit that determines side link resources for transmitting side link data
  • a selection unit that selects a target including a second MAC CE or a second logical channel with the highest priority that satisfies a predetermined condition in the first MAC CE and/or the first logical channel in a logical channel priority processing (LCP) process , the first MAC CE satisfies the following conditions: if the side link resource is not configured with PSFCH, the HARQ feedback attribute of the MAC CE is configured as disabled (disabled).
  • LCP logical channel priority processing
  • a logical channel selection apparatus which is configured in a first terminal device, the first terminal device performs side link transmission with a second terminal device, and the second terminal device uses edge link discontinuous reception (SL DRX), wherein the apparatus comprises:
  • a determination unit that determines side link resources for sending side link transmissions
  • the selection unit if the side link resource is configured with PSFCH, and the highest priority logical channel that satisfies the predetermined condition or the HARQ feedback attribute corresponding to the side link discontinuous reception command MAC CE is configured as enabled, then the The selection unit selects the logical channel or side link discontinuous reception command MAC CE whose HARQ feedback attribute is configured as enabled in the LCP process;
  • the selection unit will In the LCP process, select the logical channel or side link discontinuous reception command MAC CE whose HARQ feedback attribute is configured as disabled.
  • an apparatus for sending side link transmission which is configured in a first terminal device, the first terminal device performs side link transmission with a second terminal device, and the second terminal device performs side link transmission.
  • the apparatus uses side link discontinuous reception (SL DRX), wherein the means comprises:
  • a sending unit which sends a side link discontinuous reception command MAC CE (SL DRX command MAC CE) to the second terminal device, and the side link discontinuous reception command MAC CE has a configured or predefined priority .
  • the SL DRX command MAC CE can be triggered at the correct time to save the power consumption of the receiving device; on the other hand, according to the HARQ attribute of the SL DRX command MAC CE Selecting the resource pool and performing the LCP process ensures the reliability of the SL DRX command MAC CE transmission; in addition, the network device can be notified in time to allocate side link resources or stop allocating side link resources, reducing the transmission of SL DRX command MAC CE. Delay or avoid the waste of side link resources.
  • Fig. 1 is a schematic diagram of DRX cycle
  • Figure 2 is a schematic diagram of a duration timer and an inactive timer
  • FIG. 3 is a schematic diagram of a method for triggering a discontinuous reception command of a side link according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a method for triggering a scheduling request corresponding to a side link discontinuous reception command according to an embodiment of the present application
  • FIG. 5 is a schematic diagram of a method for selecting a resource pool according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a logical channel selection method according to an embodiment of the present application.
  • FIG. 7 is another schematic diagram of a logical channel selection method according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a method for sending side link transmission according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a scenario of side link cache status reporting
  • FIG. 10 is a schematic diagram of a method for generating an edge link buffer status report according to an embodiment of the present application
  • FIG. 11 is a schematic diagram of an apparatus for triggering a discontinuous reception command of a side link according to an embodiment of the present application
  • FIG. 12 is a schematic diagram of an apparatus for triggering a scheduling request corresponding to a side link discontinuous reception command according to an embodiment of the present application
  • FIG. 13 is a schematic diagram of an apparatus for selecting a resource pool according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of a logical channel selection apparatus according to an embodiment of the present application.
  • 15 is another schematic diagram of a logical channel selection apparatus according to an embodiment of the present application.
  • 16 is a schematic diagram of a sending apparatus for side link transmission according to an embodiment of the present application.
  • FIG. 17 is a schematic diagram of an apparatus for generating an edge link buffer status report according to an embodiment of the present application.
  • FIG. 18 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements in terms of numelation, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be referred to by these terms restricted.
  • the term “and/or” includes any and all combinations of one or more of the associated listed items.
  • the terms “comprising”, “including”, “having”, etc. refer to the presence of stated features, elements, elements or components, but do not preclude the presence or addition of one or more other features, elements, elements or components.
  • the term "communication network” or “wireless communication network” may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Long Term Evolution Enhanced (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access) and so on.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Enhanced
  • WCDMA Wideband Code Division Multiple Access
  • High-Speed Packet Access High-Speed Packet Access
  • HSPA High-Speed Packet Access
  • the communication between devices in the communication system can be carried out according to communication protocols at any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G , New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
  • Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • Network devices may include but are not limited to the following devices: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobility management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller) and so on.
  • the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include a remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low power node (eg femeto, pico, etc.).
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low power node eg femeto, pico, etc.
  • base station may include some or all of their functions, each base station may provide communication coverage for a particular geographic area.
  • the term "cell” may refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "User Equipment” (UE, User Equipment) or “Terminal Equipment” (TE, Terminal Equipment or Terminal Device), for example, refers to a device that accesses a communication network through a network device and receives network services.
  • a terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and the like.
  • the terminal device may include but is not limited to the following devices: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine type communication device, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.
  • Cellular Phone Cellular Phone
  • PDA Personal Digital Assistant
  • wireless modem wireless communication device
  • handheld device machine type communication device
  • laptop computer Cordless phones, smartphones, smart watches, digital cameras, and more.
  • the terminal device may also be a machine or device that performs monitoring or measurement, such as but not limited to: Machine Type Communication (MTC, Machine Type Communication) terminals, In-vehicle communication terminals, device-to-device (D2D, Device to Device) terminals, machine-to-machine (M2M, Machine to Machine) terminals, etc.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • network side refers to one side of the network, which may be a certain base station, and may also include one or more network devices as described above.
  • user side or “terminal side” or “terminal device side” refers to the side of a user or terminal, which may be a certain UE, or may include one or more terminal devices as above.
  • equipment may refer to network equipment or terminal equipment.
  • FIG. 1 is a schematic diagram of the DRX cycle (DRX cycle).
  • a DRX cycle specifies the duration (On Duration) and the possible inactivity time (DRX Opportunity, Opportunity for DRX) afterward; the duration is the terminal.
  • the duration that a device waits to receive an SCI e.g. including listening for first stage SCI in PSCCH and/or second stage SCI in PSSCH
  • an end device successfully decodes an SCI sent to itself to schedule a new transmission The end device then remains awake and starts an inactivity timer.
  • the inactive timer refers to the duration of waiting for the terminal device to successfully decode the SCI since the last successful decoding of the SCI; if the SCI is not successfully decoded within the timing time of the inactive timer, the terminal device returns to the sleep state; The inactive timer is started after the next successful decoding is only used for the first transmitted SCI.
  • the active time of SL DRX refers to the total time during which the terminal device monitors the SCI (for example, including monitoring the PSCCH and the second stage SCI in the PSSCH), including the on-duration, The time for the terminal device to perform continuous reception when the inactivity timer has not expired, and the time for the terminal device to perform continuous reception while waiting for a retransmission opportunity.
  • the DRX configuration may further include a retransmission timer (retransmission timer), where the retransmission timer specifies a duration for which retransmissions are expected to occur.
  • retransmission timer retransmission timer
  • Figure 2 is a schematic diagram of an on duration timer and an inactivity timer.
  • SL DRX For SL DRX, as shown in Figure 2, if the receiving device (Rx UE) receives a sidelink discontinuous reception command (SL DRX command) during the operation of the duration timer (on duration timer), the duration is stopped Timer, for example, if the Rx UE receives a SL DRX command for a destination or a pair of source ID and destination ID or a PC5 5G QoS identifier (PQI), then stop the duration timer for that destination or source-destination pair or PQI; in addition, while the duration timer or inactivity timer is running, if the receiving device (Rx UE) receives The SCI of the device (Tx UE), such as receiving the first-stage SCI in PSCCH and/or the second-stage SCI in PSSCH, starts an inactivity timer (inactivity timer), during the operation of the inactivity timer, if Stop the inactivity timer on receipt of the SL DRX command, e.g.
  • the Rx UE receives an SL for a target or source-target pair or PQI sent by a Tx UE during the duration timer or the inactivity timer is running DRX command, stop the inactivity timer for that target or source-target pair or PQI.
  • the first terminal device and the second terminal device perform side link transmission as an example for description.
  • the second terminal device uses SL DRX, or the second terminal device is configured with SL DRX, or the second terminal device performs the SL DRX operation, and so on.
  • the SL DRX configuration may be configured by the network device for the second terminal device, or may be pre-configured by the second terminal device, or may be configured by the first terminal device for the second terminal device through the side link (for example, using RRC reconfiguration sidelink messages, etc.).
  • the sidelink transmission may include transmission of sidelink data or control information or feedback information or reference signals and the like.
  • the first terminal device in this embodiment of the present application is a sending device (Tx UE), and the second terminal device is a receiving device (Rx UE).
  • An embodiment of the present application provides a method for triggering a side link discontinuous reception command (SL DRX command), which is described from the side of the first terminal device.
  • SL DRX command side link discontinuous reception command
  • FIG. 3 is a schematic diagram of a method for triggering a discontinuous reception command of a side link according to an embodiment of the present application. As shown in FIG. 3 , the method includes:
  • the MAC layer of the first terminal device triggers a side link discontinuous reception command when one of the following conditions (referred to as the first condition) is satisfied:
  • a destination (destination) or a source-destination pair (a pair of source ID and destination ID) or a logical channel corresponding to a PC5 5G quality of service indicator (PC5 5G QoS identifier, PQI) has no data to send, or within the current service cycle No data to send, or no data to send for a period of time in the past or when a timer expires;
  • a target or source-target pair has no MAC CEs to send, or no MAC CEs to send during the current service period, or no MAC CEs to send during the past period of time or when a timer expires;
  • the upper layer of the first terminal device indicates that the MAC layer of the first terminal device has no data to send or no data to send within a period of time.
  • a side link discontinuous reception command is triggered, whereby the side link discontinuous reception command can be triggered or canceled at a correct moment , which can save the power consumption of the receiving equipment (Rx UE) or prevent the delay of data transmission from increasing.
  • a target or a source-target pair or a logical channel corresponding to a PQI has no data to be sent means: the buffer size of a target or a source-target pair or a logical channel corresponding to a PQI is 0.
  • the present application is not limited to this, and the above-mentioned logical channel that has no data to be sent may also express other things.
  • the current service period in the above-mentioned first condition includes at least one of the following: the period of the side link service, for example, when the side link service is a periodic service; the period of the side link discontinuous reception (SL DRX cycle); the timing period of the side link discontinuous reception duration timer (SL DRX on-duration timer); the timing period of the side link discontinuous reception inactivity timer (SL DRX inactivity timer).
  • the above-mentioned timing period refers to the value of the above-mentioned timer, and the value of the timer indicates a timing period of the timer.
  • the timer in the above-mentioned first condition includes at least one of the following: a timer configured by the network device (eg, configured through an RRC message) or a predefined timer; a timer for the duration of side link discontinuous reception (SL DRX on-duration timer); side link discontinuous reception inactivity timer (SL DRX inactivity timer).
  • the SL DRX on-duration timer and/or the SL DRX inactivity timer may be configured by the network device through system information or RRC dedicated messages, or may be pre-configured. The present application is not limited to this.
  • the time in the above-mentioned first condition includes at least one of the following: a time configured by the network device (for example, configured through an RRC message) or a predefined time; the period of the side link service; the side link discontinuous reception SL DRX cycle; the timing period of the side link discontinuous reception duration timer (SL DRX on-duration timer); the timing of the side link discontinuous reception inactivity timer (SL DRX inactivity timer) cycle.
  • the present application is not limited to this.
  • the above-mentioned timing period refers to the value of the above-mentioned timer, and the value of the timer indicates a timing period of the timer.
  • the timing period of the above-mentioned SL DRX cycle and/or SL DRX on-duration timer and/or SL DRX inactivity timer may be configured by the network device through system information or RRC dedicated messages, or may be pre-configured, It can also be configured by the terminal equipment of the SL peer end through the SL RRC message. This application does not limit this.
  • the upper layer in the above first condition is one of the following: a vehicle-to-all (V2X) layer, a non-access layer (NAS), a radio resource control (RRC) layer.
  • V2X vehicle-to-all
  • NAS non-access layer
  • RRC radio resource control
  • the MAC layer of the first terminal device generates a side link discontinuous reception command MAC CE (SL DRX command MAC CE) when there is a side link resource, and uses the side link resource to disable the side link. Continuously receive the command MAC CE and send it to the second terminal device.
  • SL DRX command MAC CE side link discontinuous reception command
  • the method may further include:
  • the MAC layer of the first terminal device cancels the side link discontinuous reception command when one of the following conditions (referred to as the second condition) is satisfied:
  • new data arrives at the logical channel corresponding to the target or source-target pair or PQI;
  • the upper layer of the first terminal device indicates that the MAC layer of the first terminal device will have data arriving
  • the medium access control element (MAC CE) of the side link discontinuous reception command is sent in the side link;
  • HARQ hybrid automatic repeat request
  • the upper layer of the first terminal device reconfigures the discontinuous reception configuration.
  • the side link discontinuous reception command when one of the above-mentioned second conditions is satisfied, the side link discontinuous reception command is canceled (cancelled).
  • the side link discontinuous reception command can be canceled at the correct moment, enabling the receiving device (Rx UE) to keep monitoring the side link SCI and/or data, preventing the delay of data transmission from increasing.
  • the above-mentioned other MAC CEs may be other MAC CEs to be sent on the side link, such as SL CSI reporting MAC CEs.
  • the upper layer of the first terminal device reconfiguring the DRX configuration includes: for the target or source-target pair or PQI for which the sidelink DRX command is triggered, the first terminal device's
  • the upper layers have reconfigured the SL and/or DL discontinuous reception configuration. The present application is not limited to this.
  • the discontinuous reception configuration includes: the value of the SL DRX on-duration timer and/or the value of the SL DRX inactivity timer and/or the value of the SL DRX retransmission timer and/or the value of the SL DRX cycle and/or the CSI The upper limit of the reported delay, etc.
  • the upper layer in the above second condition is one of the following: a vehicle-to-all (V2X) layer, a non-access layer (NAS), and a radio resource control (RRC) layer.
  • V2X vehicle-to-all
  • NAS non-access layer
  • RRC radio resource control
  • operation 301 takes the implementation of operation 301 alone or the combined implementation of operations 301 and 302 as an example, but the present application is not limited to this, and operation 302 can also be implemented independently, that is, the implementation of operation 302 does not depend on 301,
  • the MAC layer of the first terminal device cancels the side link discontinuous reception command when one of the above-mentioned second conditions is satisfied.
  • the power consumption of the receiving device can be saved or the delay of data transmission can be prevented from increasing.
  • An embodiment of the present application provides a method for triggering a scheduling request corresponding to a discontinuous reception command of a side link, which is described from the side of the first terminal device.
  • FIG. 4 is a schematic diagram of a method for triggering a scheduling request corresponding to a side link discontinuous reception command according to an embodiment of the present application. As shown in FIG. 4 , the method includes:
  • the first terminal device After triggering a side link discontinuous reception command, the first terminal device triggers a first scheduling request corresponding to the side link discontinuous reception command.
  • the corresponding SR (called the first scheduling request) is triggered to request the network device to allocate side link resources for it.
  • An end device allocates appropriate sidelink resources.
  • the first terminal device may trigger the first scheduling request corresponding to the side link discontinuous reception command when one of the following conditions (third condition) is satisfied:
  • the side link resource (SL grant) used for the new transmission cannot accommodate the side link discontinuous reception command MAC CE and its sub-header;
  • the side link resource (SL grant) used for the new transmission cannot accommodate the subheader of the side link discontinuous reception command MAC CE.
  • the network device may allocate an appropriate SL grant to the first terminal device.
  • the method may further include:
  • the first terminal device After sending the side link discontinuous reception command, the first terminal device triggers a second scheduling request corresponding to the side link discontinuous reception command.
  • the corresponding SR (called the second scheduling request) is triggered to inform the network device that no more side link resources are allocated to it, and the network device can accordingly Stop allocating side link resources to the first terminal device.
  • the first terminal device may trigger the second scheduling request corresponding to the side link discontinuous reception command when one of the following conditions (the fourth condition) is satisfied:
  • the side link resource (SL grant) for new transmission can accommodate the side link discontinuous reception command MAC CE and its subheaders and all data waiting to be sent;
  • the side link resource (SL grant) for the new transmission can accommodate the subheader of the side link discontinuous reception command MAC CE and all data waiting to be sent.
  • the network device may stop allocating the SL grant to the first terminal device.
  • the network device may also configure at least one corresponding SR configuration for the side link discontinuous reception command.
  • the first terminal device may receive configuration information sent by the network device, where the configuration information includes the above at least one SR configuration, and the first terminal device may use at least one SR configuration in the at least one SR configuration to send the above-mentioned side link discontinuous reception The first scheduling request and/or the second scheduling request corresponding to the command.
  • the above configuration information is included in the RRC signaling, that is, the network device configures the at least one SR configuration through the RRC signaling, but the present application is not limited to this, and the above configuration information may also be included in the network device. in other signaling.
  • the above-mentioned SR configuration includes PUCCH resources on a partial bandwidth (BWP), that is, the first terminal device uses the PUCCH resources on the partial bandwidth to send the above-mentioned first scheduling request and/or the above-mentioned second scheduling request.
  • BWP partial bandwidth
  • the above-mentioned at least one SR configuration is at least one of the following: the network device is the SR configuration configured by the side link discontinuous reception command MAC CE; the network device is configured by the side link logical channel SR configuration; the network device is the SR configuration of the MAC CE configuration reported by the side link channel state information; the network device is the SR configuration of the side link or uplink logical channel or the MAC CE configuration.
  • the first terminal device may use at least one of the above SR configurations to send the first scheduling request to the network device, Request the network device to allocate side link resources to it.
  • the first terminal device may use at least one of the above SR configurations to send the second scheduling request to the network device. , which informs the network device that no more side link resources are allocated to it.
  • the network device may configure different SR configurations for the first scheduling request and the second scheduling request in the RRC reconfiguration message. Thereby, the network device can distinguish between different situations.
  • the present application is not limited thereto, and the first scheduling request and the second scheduling request may also have the same SR configuration.
  • the method may further include:
  • the SR first scheduling request
  • the network device can stop allocating side link resources to the first terminal device accordingly.
  • FIG. 4 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto.
  • the execution order of the various operations can be adjusted appropriately, and other operations can be added or some of the operations can be reduced.
  • Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 4 .
  • the first terminal device After sending the side link discontinuous reception command, the first terminal device triggers a second scheduling request corresponding to the side link discontinuous reception command.
  • waste of side link resources is avoided.
  • This embodiment of the present application provides a method for selecting a resource pool, which is described from the side of the first terminal device.
  • FIG. 5 is a schematic diagram of a method for selecting a resource pool according to an embodiment of the present application. As shown in FIG. 5 , the method includes:
  • the first terminal device is based on the side link logical channel and the priority of the side link discontinuous reception command,
  • the resource pool is selected according to the HARQ feedback attribute of the side link logical channel or according to the HARQ feedback attribute of the side link discontinuous reception command.
  • the priority of the side link discontinuous reception command and the HARQ feedback attribute are considered, which ensures the reliability of the side link discontinuous reception command MAC CE transmission.
  • the first terminal device has the HARQ feedback attribute (s1- When HARQ-FeedbackEnabled) is configured as enabled (enabled), the resource pool configured with the PSFCH resource is selected from the resource pool configured or preconfigured by the network device. Otherwise, that is, if the HARQ feedback attribute of the sidelink logical channel is not configured as enabled, a resource pool is selected from the resource pools configured or preconfigured by the network device.
  • the first terminal device has a HARQ feedback attribute of the sidelink discontinuous reception command (sl-HARQ- When FeedbackEnabled) is configured as enabled (enabled)
  • the resource pool configured with the PSFCH resource is selected from the resource pool configured or preconfigured by the network device. Otherwise, that is, if the HARQ feedback attribute (sl-HARQ-FeedbackEnabled) of the side link discontinuous reception command is not configured as enabled (enabled), select a resource from the resource pool configured or preconfigured by the network device pool.
  • the first terminal device may, when the HARQ feedback attribute of the sidelink logical channel is configured to be enabled, select from the resource pool configured or preconfigured by the network device. Select a resource pool configured with PSFCH resources; otherwise, that is, the HARQ feedback attribute of the side link logical channel is not configured as enabled, the first terminal device selects a resource pool from the resource pool configured or preconfigured by the network device .
  • the first terminal device may, when the HARQ feedback attribute of the side link discontinuous reception command is configured to be enabled, receive the command from the network device or the Select the resource pool configured with PSFCH resources from the preconfigured resource pool; otherwise, that is, the HARQ feedback attribute of the side link discontinuous reception command is not configured as enabled, then the first terminal device configures or preconfigures from the network device Select a resource pool from the resource pools.
  • the first terminal device may select a resource pool from resource pools configured or preconfigured by the network device.
  • the resource pool configured by the network device refers to the resource pool configured by the network device through system information or RRC dedicated signaling for side link transmission (SL transmission)
  • the preconfigured resource pool refers to the resource pool configured by the network device through system information or RRC dedicated signaling for side link transmission (SL transmission).
  • pre-configuration The configured resource pool for edge link transmission.
  • the reliability of sending the side link discontinuous reception command MAC CE is guaranteed.
  • This embodiment of the present application provides a method for selecting a logical channel, which is described from the side of the first terminal device.
  • FIG. 6 is a schematic diagram of a logical channel selection method according to an embodiment of the present application. As shown in FIG. 6 , the method includes:
  • the first terminal device determines side link resources for sending side link transmissions
  • the first terminal device selects a destination (destination) in a logical channel priority processing (LCP) process, and the destination has a first MAC CE and/or a first logical channel that satisfies a predetermined condition with the highest priority.
  • LCP logical channel priority processing
  • the first MAC CE satisfies the following conditions (fifth condition):
  • the HARQ feedback attribute of the MAC CE is configured as disabled.
  • the logical channel (the second logical channel) or the MAC CE (the second MAC CE) with the highest priority is selected from the logical channel (the first logical channel) of the predetermined condition and the MAC CE (the first MAC CE) satisfying the fifth condition above. ), take the destination where the selected MAC CE or logical channel is located as the destination.
  • the predetermined conditions include:
  • the logical channel's side link token is greater than 0;
  • the SL grant is a Type 1 side link configured grant (Configured Grant Type 1)
  • the logical channel is allowed to send using the Type 1 side link configured grant (configured grant);
  • the logical channel is configured to allow use of the index of the configured grant associated with the SL grant;
  • the sidelink HARQ feedback attribute of the logical channel is set to disabled.
  • FIG. 7 is another schematic diagram of a logical channel selection method according to an embodiment of the present application. As shown in FIG. 7 , the method includes:
  • the first terminal device determines side link resources for sending side link transmissions
  • the first A terminal device selects a logical channel or side link discontinuous reception command MAC CE whose HARQ feedback attribute is configured as enabled during the LCP process;
  • the first A terminal device selects a logical channel or side link discontinuous reception command MAC CE for which the HARQ feedback attribute is configured as disabled during the LCP process.
  • the HARQ feedback corresponding to the highest priority logical channel or the side link discontinuous reception command MAC CE is enabled, select the HARQ feedback
  • the logical channel or side link discontinuous reception command MAC CE is enabled; if the HARQ feedback corresponding to the highest priority logical channel or side link discontinuous reception command MAC CE is disabled, select the logical channel whose HARQ feedback is disabled or The side link discontinuously receives the command MAC CE.
  • the LCP process is performed according to the HARQ attribute of the side link discontinuous reception command MAC CE, which ensures the reliability of the transmission of the MAC CE.
  • An embodiment of the present application provides a method for sending side link transmission, which is described from the side of the first terminal device.
  • FIG. 8 is a schematic diagram of a method for sending side link transmission according to an embodiment of the present application. As shown in FIG. 8 , the method includes:
  • the first terminal device sends a side link discontinuous reception command MAC CE to a second terminal device, where the side link discontinuous reception command MAC CE has a configured or predefined priority.
  • the side link discontinuous reception command MAC CE since the side link discontinuous reception command MAC CE has a configured or predefined priority, the side link resources can be allocated according to the priority, or it can also be combined with other MAC CEs. The priority of CE or logical channel or uplink transmission is compared, which enhances the reliability of side link transmission.
  • the method further includes:
  • the first terminal device sends side link control information (SCI) to the second terminal device, where the side link control information indicates the priority of the side link discontinuous reception command MAC CE.
  • SCI side link control information
  • the first terminal device can indicate the priority of the SL data corresponding to the SCI to the second terminal device in the SCI, that is, the priority of the side link discontinuous reception command MAC CE, thereby further enhancing The reliability of side link transmission is improved.
  • the priority of the side link discontinuous reception command MAC CE indicated in the SCI or the priority of the side link discontinuous reception command MAC CE used in the UL and SL priority comparison process may be An integer between 1 and 8, such as 1 or 2. The smaller the value, the higher the priority.
  • the method further includes:
  • the first terminal device uses the configured or predefined priority to decide to send sidelink transmission or to send uplink transmission.
  • the first terminal device may use the above-mentioned priority to decide whether to send the sidelink transmission or the uplink transmission.
  • FIG. 8 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto.
  • the execution order of the various operations can be adjusted appropriately, and other operations can be added or some of the operations can be reduced.
  • Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 8 .
  • the priority of the side link discontinuous reception command MAC CE is lower than the priority of the data of the side link traffic channel.
  • the priority of the side link discontinuous reception command MAC CE may be lower than the priority of the data of the side link traffic channel (Sidelink Traffic Channel, STCH). Therefore, it can be ensured that the side link service data is sent prior to the side link discontinuous reception command MAC CE, so that the second terminal device can correctly receive the side link service data and then receive the side link discontinuous reception command MAC CE according to the received side link. Stop receiving side link service data.
  • the priority of the side link discontinuous reception command MAC CE may also be lower than the priority of the data of the side link control channel and higher than the priority of the side link control channel.
  • the priority of link CSI reporting MAC CE, or lower than the priority of side link CSI reporting MAC CE and higher than the priority of data of side link traffic channel, is not limited in this application.
  • the meaning of the priority of the side link CSI reporting the MAC CE reference may be made to the related art, and the description is omitted here.
  • the first terminal device may generate a MAC PDU when generating the side link discontinuous reception command MAC CE.
  • the reliability of side link transmission is enhanced.
  • the Buffer Size field in the SL-BSR MAC CE is described as follows:
  • the SL-BSR MAC CE is generated on the condition that there is a UL-SCH resource for new transmission and the UL-SCH resource can accommodate the SL-BSR MAC CE plus its sub-header during the LCP process. That is, a UL MAC PDU containing the SL-BSR MAC CE will be constructed.
  • the "MAC PDU" in the above standard text refers to the UL MAC PDU
  • the buffer size of the side link has nothing to do with the construction of the UL MAC PDU or the UL LCP process, if there is no data transmission on the side link, Then it will not cause the value of the cache size field of the edge link to be 0.
  • MAC PDU in the above standard text refers to SL MAC PDU
  • MAC PDU if there is no data transmission on the side link, there will be no SL MAC PDU; if there is data transmission on the side link, only the side link transmission and The value of the buffer size of the SL-BSR is affected only when the transmission of the SL-BSR overlaps in time and the terminal device has the ability to transmit the side link (SL) and the uplink (UL) at the same time.
  • an embodiment of the present application provides a method for generating an edge link buffer status report, which is described from the side of the first terminal device.
  • the first terminal device and the second terminal device perform side link transmission.
  • the first terminal device in this embodiment of the present application is a sending device (Tx UE)
  • the second terminal device is a receiving device (Rx UE).
  • FIG. 10 is a schematic diagram of a method for generating an edge link buffer status report according to an embodiment of the present application. As shown in FIG. 10 , the method includes:
  • the first terminal device generates a side link buffer status report (SL-BSR), and the buffer size field (buffer size filed) in the side link buffer status report identifies at least one of the following:
  • the MAC PDU After the MAC PDU is constructed, the total amount of available data of all logical channels of the target logical channel group, the MAC PDU includes a side link buffer status report MAC CE or, the MAC PDU is a UL MAC PDU;
  • the MAC PDU includes the MAC CE of the side link buffer status report, or the MAC PDU is a UL MAC PDU;
  • the first terminal device sends the side link buffer status report to a network device.
  • the network device by modifying the description of the buffer size field in the SL-BSR, it is beneficial for the network device to know the side link buffer status of the terminal device, so as to perform adaptive scheduling to meet the QoS requirements of the side link service. .
  • the buffer size field in the SL-BSR identifies: the total amount of data available for all logical channels of the target logical channel group after the construction of the MAC PDU including the side link buffer status report MAC CE
  • the MAC PDU is a UL MAC PDU.
  • the buffer size field in the SL-BSR identifies: the total amount of available data for all logical channels of the target logical channel group at the time of construction of the MAC PDU, which includes the MAC of the side link buffer status report CE or, the MAC PDU is a UL MAC PDU.
  • the buffer size field in the SL-BSR identifies: the total amount of data available for all logical channels of the target's logical channel group when the MAC CE for the side link buffer status report is generated.
  • the buffer size field in the SL-BSR identifies: the total amount of data available for all logical channels of the target logical channel group when the MAC CE of the side link buffer status report is triggered.
  • the buffer size field in the SL-BSR identifies: the total amount of data available for all logical channels of the target logical channel group after the MAC PDU for the side link is constructed, wherein the uplink transmission and the side link transmission Overlap in time and the first terminal device has the capability of simultaneous uplink transmission and sidelink transmission, which, after the sidelink LCP procedure, results in a value of zero for the buffer size field.
  • the total amount of available data of all logical channels of the target logical channel group is obtained according to the data amount calculation process in technical specifications 38.322 and 38.323.
  • the behavior of the MAC layer of the terminal device for determining the buffer size field in the SL-BSR is clearly defined, which is helpful for the network device to know the buffer status of the side link of the terminal device, so as to perform adaptive scheduling to Meet the QoS requirements of side link services.
  • An embodiment of the present application provides a triggering device for a discontinuous reception command of a side link.
  • FIG. 11 is a schematic diagram of an apparatus for triggering a discontinuous reception command of a side link according to an embodiment of the present application.
  • the apparatus may be, for example, a terminal device (eg, the aforementioned first terminal device), or one or some components or components configured in the terminal device, and the same content as the embodiment of the first aspect will not be repeated.
  • the triggering device 1100 for the discontinuous reception command of the side link includes:
  • Triggering unit 1101 which triggers a side link discontinuous reception command when the MAC layer of the first terminal device satisfies one of the following conditions:
  • a target or source-target pair or a logical channel corresponding to a PC5 5G quality of service indicator (PC5 5G QoS identifier, PQI) has no data to send, or no data to send during the current service period, or a period of time or a timer in the past There is no data to send when the timer times out;
  • a target or source-target pair has no MAC CEs to send, or no MAC CEs to send during the current service period, or no MAC CEs to send during the past period of time or when a timer expires;
  • the upper layer of the first terminal device indicates that the MAC layer of the first terminal device has no data to send or no data to send within a period of time.
  • a target or a source-target pair or a logical channel corresponding to a PQI has no data to be sent means: the buffer size of a target or a source-target pair or a logical channel corresponding to a PQI is 0.
  • the current service cycle includes at least one of the following: a cycle of side link traffic (in the case where the side link traffic is periodic traffic); a cycle of side link discontinuous reception (SL DRX cycle ); the timing period of the side link discontinuous reception duration timer (SL DRX on-duration timer); the timing period of the side link discontinuous reception inactivity timer (SL DRX inactivity timer).
  • the timer includes at least one of the following: a network device configured or predefined timer; a side link discontinuous reception duration timer (SL DRX on-duration timer); a side link Inactivity timer for discontinuous reception (SL DRX inactivity timer).
  • the SL DRX on-duration timer and/or the SL DRX inactivity timer may be configured by the network device through system information or RRC dedicated messages, or may be pre-configured.
  • the time includes at least one of the following: a time configured by a network device or a predefined time; a cycle of side link traffic; a cycle of side link discontinuous reception (SL DRX cycle); The timing period of the continuous reception duration timer (SL DRX on-duration timer); the timing period of the side link discontinuous reception inactivity timer (SL DRX inactivity timer).
  • the timing period of the above-mentioned SL DRX cycle and/or SL DRX on-duration timer and/or SL DRX inactivity timer may be configured by the network device through system information or RRC dedicated messages, or may be pre-configured, or may be SL DRX The terminal equipment of the opposite end is configured through the SL RRC message.
  • the upper layer is one of the following: Vehicle-to-Everything (V2X) layer, Non-Access Stratum (NAS), Radio Resource Control (RRC) layer.
  • V2X Vehicle-to-Everything
  • NAS Non-Access Stratum
  • RRC Radio Resource Control
  • the MAC layer of the first terminal device generates a side link discontinuous reception command MAC CE when there is a side link resource, and sends the side link discontinuous reception command MAC CE to the second terminal equipment.
  • the apparatus 1100 of the embodiment of the present application may further include a generating unit (not shown in the figure) and a sending unit (not shown in the figure), the generating unit generates the above-mentioned side link discontinuous reception command MAC CE, and the sending unit passes the obtained side link resource. Send the side link discontinuous reception command MAC CE to the second terminal device.
  • the apparatus 1100 further includes:
  • Cancellation unit 1102 which cancels the side link discontinuous reception command when the MAC layer of the first terminal device satisfies one of the following conditions:
  • new data arrives at the logical channel corresponding to the target or source-target pair or PQI;
  • the upper layer of the first terminal device indicates that the MAC layer of the first terminal device will have data arriving
  • the medium access control element (MAC CE) of the side link discontinuous reception command is sent in the side link;
  • HARQ hybrid automatic repeat request
  • the upper layer of the first terminal device reconfigures the discontinuous reception configuration.
  • the above-mentioned other MAC CEs may be other MAC CEs to be sent on the side link, such as SL CSI reporting MAC CEs.
  • the upper layer is one of the following: Vehicle-to-Everything (V2X) layer, Non-Access Stratum (NAS), Radio Resource Control (RRC) layer.
  • V2X Vehicle-to-Everything
  • NAS Non-Access Stratum
  • RRC Radio Resource Control
  • the upper layer of the first terminal device reconfiguring the discontinuous reception configuration includes:
  • the upper layer of the first terminal device reconfigures the SL and/or DL discontinuous reception configuration for the target or source-target pair or PQI for which the sidelink discontinuous reception command is triggered.
  • the DRX configuration includes: the value of SL on-duration timer and/or the value of SL inactivity timer and/or the value of SL retransmission timer and/or the value of SL DRX cycle and/or the time of CSI reporting Extend the upper limit, etc.
  • each component or module related to the present application may further include other components or modules, and for the specific contents of these components or modules, reference may be made to the related art.
  • each module in FIG. 11 may be implemented independently, or may be implemented in any combination.
  • the triggering unit 1101 and the canceling unit 1102 may be implemented independently, which is not limited in this application.
  • FIG. 11 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
  • the side link discontinuous reception command MAC CE can be triggered or canceled at the correct time, which can save the power consumption of the receiving device or prevent the delay of data transmission from increasing.
  • An embodiment of the present application provides an apparatus for triggering a scheduling request corresponding to a discontinuous reception command of a side link.
  • FIG. 12 is a schematic diagram of an apparatus for triggering a scheduling request corresponding to a side link discontinuous reception command according to an embodiment of the present application.
  • the apparatus may be, for example, a terminal device (eg, the aforementioned first terminal device), or one or some components or components configured in the terminal device, and the same content as the embodiment of the second aspect will not be repeated.
  • the triggering device 1200 for the scheduling request corresponding to the side link discontinuous reception command includes:
  • the first triggering unit 1201 triggers a first scheduling request corresponding to the side link discontinuous reception command after triggering the side link discontinuous reception command.
  • the first triggering unit 1201 triggers the first scheduling request corresponding to the sidelink discontinuous reception command when one of the following conditions is satisfied: there is no sidelink resource for new transmission ;
  • the side link resources used for new transmission cannot accommodate the side link discontinuous reception command MAC CE and its subheader; the side link resources used for new transmission cannot accommodate the subheader of the side link discontinuous reception command MAC CE.
  • the apparatus 1200 further includes:
  • the second triggering unit 1202 after sending the side link discontinuous reception command, triggers a second scheduling request corresponding to the side link discontinuous reception command.
  • the second triggering unit 1202 triggers the second scheduling request corresponding to the sidelink discontinuous reception command when one of the following conditions is satisfied: the sidelink resources used for new transmission can be Accommodates the side link discontinuous reception command MAC CE and its subheaders and all data waiting to be sent; the side link resources used for new transmissions can accommodate the side link discontinuous reception command MAC CE subheader and all data waiting to be sent .
  • the apparatus 1200 further includes:
  • a sending unit 1204 which uses at least one SR configuration in the at least one SR configuration to send the first scheduling request and/or the second scheduling request corresponding to the side link discontinuous reception command.
  • the sending unit 1204 may be combined with the first triggering unit 1201 and/or the second triggering unit 1202 .
  • the configuration information is included in RRC signaling.
  • the SR configuration includes PUCCH resources on partial bandwidth (BWP).
  • BWP partial bandwidth
  • the at least one SR is configured as at least one of the following:
  • the network device is the SR configuration of the side link discontinuous reception command MAC CE configuration
  • the network device is the SR configuration configured by the side link logical channel
  • the network device is the SR configuration of the MAC CE configuration reported by the side link channel state information
  • the network device is the SR configuration of the logical channel of the side link or the uplink or the MAC CE configuration.
  • the network device may configure different SR configurations for the first scheduling request and the second scheduling request in the RRC reconfiguration message.
  • the apparatus 1200 further includes:
  • Cancellation unit 1205 which cancels the first scheduling request corresponding to the side link discontinuous reception command when the side link discontinuous reception command MAC CE is sent.
  • the apparatus 1200 may also include other components or modules. For the specific content of these components or modules, reference may be made to the related art.
  • each module in FIG. 12 can be implemented independently, or can be implemented in any combination.
  • the first triggering unit 1201 and the second triggering unit 1202 can be implemented independently, which is not limited in this application.
  • FIG. 12 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
  • the network device can be notified in time to stop allocating side link resources, thereby avoiding waste of side link resources.
  • the embodiment of the present application provides a resource pool selection apparatus.
  • FIG. 13 is a schematic diagram of an apparatus for selecting a resource pool according to an embodiment of the present application.
  • the apparatus may be, for example, a terminal device (eg, the aforementioned first terminal device), or may be one or some components or components configured in the terminal device, and the same content as the embodiment of the third aspect will not be repeated.
  • the device for selecting the resource pool is configured on the first terminal device, the first terminal device and the second terminal device perform side link transmission, and the second terminal device uses SL DRX.
  • the resource pool selection device 1300 includes:
  • the selection unit 1301 if the logical channel of the side link has data to be sent and the side link discontinuous reception command is triggered, the selection unit 1301 is based on the logical channel of the side link and the value of the side link discontinuous reception command. For the priority, the resource pool is selected according to the HARQ feedback attribute of the logical channel of the side link or according to the HARQ feedback attribute of the side link discontinuous reception command.
  • the selecting unit 1301 selects the HARQ of the logical channel of the side link
  • the resource pool configured with the PSFCH resource is selected from resource pools configured or preconfigured by the network device.
  • the selection unit 1301 feedbacks the HARQ of the sidelink discontinuous reception command
  • the resource pool configured with the PSFCH resource is selected from the resource pools configured or preconfigured by the network device.
  • the apparatus 1300 may further include other components or modules, and for the specific content of these components or modules, reference may be made to the related art.
  • each of the above components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of this application does not limit this.
  • the reliability of sending the side link discontinuous reception command MAC CE is guaranteed.
  • Embodiments of the present application provide a logical channel selection apparatus.
  • FIG. 14 is a schematic diagram of a logical channel selection apparatus according to an embodiment of the present application.
  • the apparatus may be, for example, a terminal device (such as the aforementioned first terminal device), or may be one or some components or components configured in the terminal device.
  • the same content as the example in FIG. 6 in the embodiment of the fourth aspect is not the same. Repeat.
  • the logical channel selection apparatus 1400 includes:
  • Determining unit 1401 which determines side link resources for sending side link transmissions
  • a selection unit 1402 which selects a target in a logical channel priority (LCP) process, the target having a first MAC CE and/or a second logical channel or a second MAC with the highest priority among the first logical channels satisfying a predetermined condition CE, the first MAC CE meets the following conditions:
  • the HARQ feedback attribute of the MAC CE is configured as disabled.
  • FIG. 15 is another schematic diagram of a logical channel selection apparatus according to an embodiment of the present application.
  • the apparatus may be, for example, a terminal device (such as the aforementioned first terminal device), or may be one or some components or components configured in the terminal device.
  • the same content as the example in FIG. 7 in the embodiment of the fourth aspect is not the same. Repeat.
  • the logical channel selection apparatus 1500 includes:
  • Determining unit 1501 which determines side link resources for sending side link transmissions
  • Selecting unit 1502 if the side link resource is configured with PSFCH, and the HARQ feedback attribute corresponding to the highest priority logical channel or side link discontinuous reception command MAC CE that satisfies the predetermined condition is configured as enabled, select The unit 1502 selects the logical channel or side link discontinuous reception command MAC CE whose HARQ feedback attribute is configured as enabled in the LCP process;
  • the selection unit 1502 selects the LCP In the process, select the logical channel or side link discontinuous reception command MAC CE for which the HARQ feedback attribute is configured as disabled.
  • FIG. 14 and FIG. 15 only exemplarily show the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used .
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
  • the reliability of sending the side link discontinuous reception command MAC CE is guaranteed.
  • An embodiment of the present application provides a sending apparatus for side link transmission.
  • FIG. 16 is a schematic diagram of a sending apparatus for side link transmission according to an embodiment of the present application.
  • the apparatus may be, for example, a terminal device (eg, the aforementioned first terminal device), or one or some components or components configured in the terminal device, and the same content as the embodiment of the fifth aspect will not be repeated.
  • the sending apparatus 1600 for side link transmission includes:
  • the first sending unit 1601 which sends the MAC CE of the side link discontinuous reception command (SL DRX command) to the second terminal device, and the side link discontinuous reception command MAC CE has a configured or predefined priority.
  • apparatus 1600 further includes:
  • a second sending unit 1602 which sends side link control information (SCI) to the second terminal device, the side link control information indicating the priority of the side link discontinuous reception command MAC CE.
  • SCI side link control information
  • apparatus 1600 further includes:
  • the priority of the side link discontinuous reception command MAC CE is lower than the priority of side link traffic channel data.
  • apparatus 1600 further includes:
  • the generating unit 1604 when generating the side link discontinuous reception command MAC CE, the generating unit 1604 generates a MAC PDU.
  • the apparatus 1600 may further include other components or modules, and for the specific content of these components or modules, reference may be made to the related art.
  • FIG. 16 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
  • the reliability of side link transmission is enhanced.
  • An embodiment of the present application provides an apparatus for generating an edge link buffer status report.
  • FIG. 17 is a schematic diagram of an apparatus for generating an edge link buffer status report according to an embodiment of the present application.
  • the apparatus may be, for example, a terminal device (eg, the aforementioned first terminal device), or one or some components or components configured in the terminal device, and the same content as the embodiment of the sixth aspect will not be repeated.
  • an apparatus 1700 for generating an edge link buffer status report includes: a generating unit 1701 and a sending unit 1702 .
  • the generating unit 1701 generates a side link buffer status report (SL-BSR), and the buffer size field (buffer size filed) in the side link buffer status report identifies at least one of the following:
  • the MAC PDU After the MAC PDU is constructed, the total amount of available data of all logical channels of the target logical channel group, the MAC PDU includes a side link buffer status report MAC CE or, the MAC PDU is a UL MAC PDU;
  • the MAC PDU includes the MAC CE of the side link buffer status report, or the MAC PDU is a UL MAC PDU;
  • the sending unit 1702 sends the side link buffer status report to the network device.
  • the apparatus 1700 may also include other components or modules. For the specific content of these components or modules, reference may be made to the related art.
  • each of the above components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of this application does not limit this.
  • the network device it is beneficial for the network device to know the buffer status of the side link of the terminal device, so as to perform adaptive scheduling to meet the QoS requirement of the side link service.
  • the embodiment of the present application further provides a communication system, and the same content as the embodiment of the first aspect to the twelfth aspect will not be repeated.
  • the communication system may include at least: a first terminal device and a second terminal device, the first terminal device and the second terminal device perform side link transmission, and the second terminal device uses SL DRX .
  • the first terminal device is configured as a sending device to implement the method described in the embodiments of any one of the first aspect to the sixth aspect;
  • the second terminal device is configured as a receiving device to receive the first terminal at the SL DRX active time Sidelink transmissions sent by the device.
  • the communication system may at least include: a first terminal device, a second terminal device, and a network device, and the first terminal device, as a sending device, is configured to implement any one of the embodiments of the first aspect to the sixth aspect.
  • the second terminal device is configured as a receiving device to receive the side link transmission sent by the first terminal device at the SL DRX active time
  • the network device is configured to allocate side link resources for the first terminal device.
  • the embodiments of the present application also provide a terminal device.
  • FIG. 18 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 1800 may include a processor 1801 and a memory 1802 ; the memory 1802 stores data and programs, and is coupled to the processor 1802 .
  • this figure is exemplary; other types of structures may be used in addition to or in place of this structure to implement telecommunication functions or other functions.
  • the processor 1802 may be configured to execute a program to implement the method according to the embodiment of any one of the first to sixth aspects.
  • the terminal device 1800 may further include: a communication module 1803, an input unit 1804, a display 1805, and a power supply 1806.
  • the functions of the above components are similar to those in the prior art, and details are not repeated here. It is worth noting that the terminal device 1800 does not necessarily include all the components shown in FIG. 18 , and the above components are not required; in addition, the terminal device 1800 may also include components not shown in FIG. 18 . There is technology.
  • the embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method described in the embodiments of any one of the first aspect to the sixth aspect.
  • An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program causes a terminal device to execute the method described in the embodiments of any one of the first to sixth aspects.
  • the apparatuses and methods above in the present application may be implemented by hardware, or may be implemented by hardware combined with software.
  • the present application relates to a computer-readable program that, when executed by logic components, enables the logic components to implement the above-described apparatus or constituent components, or causes the logic components to implement the above-described various methods or steps.
  • the present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
  • the method/apparatus described in conjunction with the embodiments of this application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams shown in the figures and/or one or more combinations of the functional block diagrams may correspond to either software modules or hardware modules of the computer program flow.
  • These software modules may respectively correspond to the various steps shown in the figure.
  • These hardware modules can be implemented by, for example, solidifying these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor, such that the processor can read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and storage medium may reside in an ASIC.
  • the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • the functional blocks and/or one or more combinations of the functional blocks described in the figures can be implemented as a general-purpose processor, a digital signal processor (DSP) for performing the functions described in this application ), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof.
  • DSP digital signal processor
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • One or more of the functional blocks and/or one or more combinations of the functional blocks described with respect to the figures can also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors processor, one or more microprocessors in communication with the DSP, or any other such configuration.
  • the MAC layer of the first terminal device triggers a side link discontinuous reception command when one of the following conditions is met:
  • a destination (destination) or a source-destination pair (a pair of source ID and destination ID) or a logical channel corresponding to a PC5 5G quality of service indicator (PC5 5G QoS identifier, PQI) has no data to send, or within the current service cycle No data to send, or no data to send for a period of time in the past or when a timer expires;
  • a target or source-target pair has no MAC CEs to send, or no MAC CEs to send during the current service period, or no MAC CEs to send during the past period of time or when a timer expires;
  • the upper layer of the first terminal device indicates that the MAC layer of the first terminal device has no data to send or no data to send within a period of time.
  • a target or a source-target address pair or a logical channel corresponding to a PQI has no data to be sent means: a target or a source-target pair or a logical channel corresponding to a PQI.
  • the cache size is 0.
  • the timing period of the side link discontinuous reception duration timer (SL DRX on-duration timer);
  • the timing period of the side link discontinuous reception inactivity timer (SL DRX inactivity timer).
  • timer comprises at least one of the following:
  • SL DRX on-duration timer Side link discontinuous reception duration timer
  • the timing period of the side link discontinuous reception duration timer (SL DRX on-duration timer);
  • the timing period of the side link discontinuous reception inactivity timer (SL DRX inactivity timer).
  • V2X vehicle-to-all
  • NAS non-access stratum
  • RRC radio resource control
  • the MAC layer of the first terminal device cancels the side link discontinuous reception command when one of the following conditions is satisfied:
  • new data arrives at the logical channel corresponding to the target or source-target pair or PQI;
  • the upper layer of the first terminal device indicates that the MAC layer of the first terminal device will have data arriving
  • the medium access control element (MAC CE) of the side link discontinuous reception command is sent in the side link;
  • HARQ hybrid automatic repeat request
  • the upper layer of the first terminal device reconfigures the discontinuous reception configuration.
  • V2X vehicle-to-all
  • NAS non-access stratum
  • RRC radio resource control
  • the upper layer of the first terminal device reconfigures the SL and/or DL discontinuous reception configuration for the target or source-target pair or PQI for which the sidelink discontinuous reception command is triggered.
  • the MAC layer of the first terminal device cancels the side link discontinuous reception command when one of the following conditions is satisfied:
  • new data arrives at the logical channel corresponding to the target or source-target pair or PQI;
  • the upper layer of the first terminal device indicates that the MAC layer of the first terminal device will have data arriving
  • the medium access control element (MAC CE) of the side link discontinuous reception command is sent in the side link;
  • HARQ hybrid automatic repeat request
  • the upper layer of the first terminal device reconfigures the discontinuous reception configuration.
  • V2X vehicle-to-all
  • NAS non-access stratum
  • RRC radio resource control
  • the upper layer of the first terminal device reconfigures the SL and/or DL discontinuous reception configuration for the target or source-target pair or PQI for which the sidelink discontinuous reception command is triggered.
  • the first terminal device After triggering the side link discontinuous reception command, the first terminal device triggers a first scheduling request corresponding to the side link discontinuous reception command.
  • the side link resources used for the new transmission cannot accommodate the side link discontinuous reception command MAC CE and its subheaders;
  • the sidelink resources used for the new transmission cannot accommodate the subheader of the sidelink discontinuous reception command MAC CE.
  • the first terminal device After sending the side link discontinuous reception command, the first terminal device triggers a second scheduling request corresponding to the side link discontinuous reception command.
  • the side link resources used for new transmission can accommodate the side link discontinuous reception command MAC CE and its subheaders and all data waiting to be sent;
  • the sidelink resources used for the new transmission can accommodate the subheader of the sidelink discontinuous reception command MAC CE and all data waiting to be sent.
  • the first terminal device sends the first scheduling request and/or the second scheduling request corresponding to the sidelink discontinuous reception command by using at least one SR configuration in the at least one SR configuration.
  • Described network equipment is the SR configuration of side link discontinuous reception command MAC CE configuration
  • the network device is the SR configuration configured by the side link logical channel
  • the network device is the SR configuration of the MAC CE configuration reported by the side link channel state information
  • the network device is the SR configuration of the logical channel of the side link or the uplink or the MAC CE configuration.
  • the first terminal device is based on the sidelink logical channel and the priority of the sidelink discontinuous reception command,
  • the resource pool is selected according to the HARQ feedback attribute of the side link logical channel or according to the HARQ feedback attribute of the side link discontinuous reception command.
  • a logical channel selection method applied to a first terminal device, the first terminal device performs side link transmission with a second terminal device, and the second terminal device uses side link discontinuous reception (SL DRX) , wherein the method further includes:
  • the first terminal device selects a target in the logical channel priority processing (LCP) process, and the target has the first MAC CE and/or the second logical channel or the second logical channel with the highest priority in the first logical channel satisfying the predetermined condition.
  • LCP logical channel priority processing
  • the HARQ feedback attribute of the MAC CE is configured as disabled.
  • a logical channel selection method applied to a first terminal device, which performs side link transmission with a second terminal device, and the second terminal device uses side link discontinuous reception (SL DRX) , wherein the method further includes:
  • the first terminal selects the logical channel or side link discontinuous reception command MAC CE whose HARQ feedback attribute is configured as enabled during the LCP process;
  • the first terminal selects the logical channel or side link discontinuous reception command MAC CE for which the HARQ feedback attribute is configured as disabled during the LCP process.
  • the first terminal device sends a side link discontinuous reception command MAC CE (SL DRX command MAC CE) to the second terminal device, and the side link discontinuous reception command MAC CE has a configured or predefined value. priority.
  • the first terminal device sends side link control information (SCI) to the second terminal device, and the side link control information indicates the priority of the side link discontinuous reception command MAC CE.
  • SCI side link control information
  • the first terminal device uses the configured or predefined priority to decide to send a sidelink transmission or to send an uplink transmission.
  • the first terminal device When generating the side link discontinuous reception command MAC CE, the first terminal device generates a MAC PDU.
  • a method for generating a side link buffer status report, applied to a first terminal device, the first terminal device and the second terminal device performing side link transmission comprising:
  • the first terminal device generates a side link buffer status report (SL-BSR), and the buffer size field (buffer size filed) in the side link buffer status report identifies at least one of the following:
  • the MAC PDU After the MAC PDU is constructed, the total amount of available data of all logical channels of the target logical channel group, the MAC PDU includes a side link buffer status report MAC CE or, the MAC PDU is a UL MAC PDU;
  • the MAC PDU includes the MAC CE of the side link buffer status report, or the MAC PDU is a UL MAC PDU;
  • the total amount of data available for all logical channels of the logical channel group addressed after the MAC PDU of the side link is constructed, wherein the uplink transmission and the side link transmission overlap in time and the first terminal device has simultaneous uplink transmission and The capacity of the side link transmission, which, after the side link LCP process, will result in the value of the cache size field being zero;
  • the first terminal device sends the side link buffer status report to the network device.
  • a terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method according to any one of supplementary notes 1 to 29.
  • a communication system comprising a first terminal device and a second terminal device, the first terminal device and the second terminal device perform side-link transmission, and the second terminal device uses a side-link discontinuous reception (SL DRX), where:
  • the first terminal device is configured to execute the method described in any one of Supplementary Notes 1 to 29.

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Abstract

本申请实施例提供一种数据发送方法、装置和系统。所述数据发送方法应用于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述方法包括:所述第一终端设备确定边链路资源;所述第一终端设备在逻辑信道优先级处理(Logical Channel Prioritization,LCP)过程中选择与所述边链路资源相关联的目标(destination);所述第一终端设备向选择的所述目标对应的所述第二终端设备发送所述边链路传输。

Description

边链路非连续接收命令的触发方法、装置和系统 技术领域
本申请实施例涉及通信技术领域。
背景技术
在现有标准的版本17(Release 17)中,对新无线边链路(NR sidelink)的一个增强是省电,这使得具有电池限制的终端设备能以功率高效的方式执行边链路操作。现有标准的版本16(Release 16)的NR sidelink的设计是基于终端设备在进行边链路操作时总是在线的假设,例如只聚焦安装在汽车中的具有充分电池容量的终端设备。在Release17中,对车辆对所有(Vehicle to everything,V2X)使用场景中的易受攻击的道路用户(vulnerable road users,VRUs)、行人用户以及公共安全和商用场景中需要最小化功耗的终端设备要求省电的方案。
在现有标准中,为了省电,可以为终端设备配置下行非连续接收(Discontinuous Reception,DRX),当为终端设备配置了DRX时,终端设备不必连续地监听(monitor)物理下行控制信道(PDCCH)。
应该注意,上面对技术背景的介绍只是为了方便对本申请的技术方案进行清楚、完整的说明,并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本申请的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
发明人发现,对于边链路DRX(sidelink DRX,SL DRX),第三代合作伙伴计划(3GPP)的无线接入网络第二组(RAN2)同意了以下内容,即:对单播(unicast)中的SL DRX操作,引入边链路非连续接收命令(SL DRX command)MAC CE。然而,在引入SL DRX command MAC CE之后,存在以下问题:
问题1),SL DRX command MAC CE可以由发送设备(Tx UE)发送给接收设备(Rx UE),不清楚发送设备在什么时候触发该SL DRX command MAC CE;
问题2),当发送设备只有该SL DRX command MAC CE待发送时,在mode-1模式中,发送设备如何让网络设备知道这种情况,以分配合适的SL资源;
问题3),如果该SL DRX command MAC CE支持混合自动重传(HARQ)反馈使 能(feedback enabled),如何进行资源池的选择和逻辑信道优先级处理(LCP)过程;
问题4),该SL DRX command MAC CE在边链路资源分配以及其他MAC CE或逻辑信道比较时的优先级是不清楚的。
针对上述问题的至少之一,本申请实施例提供一种边链路非连续接收命令的触发方法、装置和系统。
根据本申请实施例的一方面,提供一种边链路非连续接收命令(SL DRX command)的触发装置,配置于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述装置包括:
触发单元,其在所述第一终端设备的MAC层在以下条件之一满足的情况下,触发边链路非连续接收命令:
一个目标(destination)或者源-目标对(a pair of source ID and destination ID)或者一个PC5业务质量指示(PC5 5G QoS identifier,PQI)对应的逻辑信道没有数据待发送,或者在当前业务周期内没有数据待发送,或者在过去一段时间或一个计时器超时时没有数据待发送;
一个目标或者源-目标对没有MAC CE待发送,或者在当前业务周期内没有MAC CE待发送,或者在在过去一段时间或一个计时器超时时没有MAC CE待发送;
所述第一终端设备的上层指示所述第一终端设备的MAC层没有数据要发送或者在一段时间内没有数据要发送。
根据本申请实施例的另一方面,提供一种边链路非连续接收命令对应的调度请求的触发装置,配置于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述装置包括:
第一触发单元,其在触发了边链路非连续接收命令后,触发所述边链路非连续接收命令对应的第一调度请求。
根据本申请实施例的再一方面,提供一种资源池的选择装置,配置于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述装置包括:
选择单元,如果边链路逻辑信道有数据待发送并且边链路非连续接收命令被触发,则所述选择单元基于所述边链路逻辑信道和所述边链路非连续接收命令的优先级,根据所述边链路逻辑信道的HARQ反馈属性或者根据所述边链路非连续接收命令的HARQ反馈属性选择资源池。
根据本申请实施例的又一方面,提供一种逻辑信道选择装置,配置于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述装置还包括:
确定单元,其确定用于发送边链路数据的边链路资源;
选择单元,其在逻辑信道优先级处理(LCP)过程中在第一MAC CE和/或第一逻辑信道中选择包括满足预定条件的具有最高优先级的第二MAC CE或第二逻辑信道的目标,所述第一MAC CE满足以下条件:如果所述边链路资源没有被配置PSFCH,所述MAC CE的HARQ反馈属性被配置为去能(disabled)。
根据本申请实施例的另一方面,提供一种逻辑信道选择装置,配置于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述装置包括:
确定单元,其确定用于发送边链路传输的边链路资源;
选择单元,如果所述边链路资源被配置了PSFCH,并且,满足预定条件的最高优先级的逻辑信道或边链路非连续接收命令MAC CE对应的HARQ反馈属性被配置为enabled,则所述选择单元在LCP过程中选择HARQ反馈属性被配置为enabled的逻辑信道或边链路非连续接收命令MAC CE;
如果所述边链路资源被配置了PSFCH,并且,满足预定条件的最高优先级的逻辑信道或边链路非连续接收命令MAC CE对应的HARQ反馈属性被配置为disabled,则所述选择单元在LCP过程中选择HARQ反馈属性被配置为disabled的逻辑信道或边链路非连续接收命令MAC CE。
根据本申请实施例的再一方面,提供一种边链路传输的发送装置,配置于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述装置包括:
发送单元,其向所述第二终端设备发送边链路非连续接收命令MAC CE(SL DRX command MAC CE),所述边链路非连续接收命令MAC CE具有被配置的或者预定义的优先级。
本申请实施例的有益效果之一在于:根据本申请实施例,SL DRX command MAC CE可以在正确时刻被触发,以节省接收设备的耗电;另一方面,根据SL DRX command MAC CE的HARQ属性选择资源池和进行LCP过程,保证了该SL DRX command MAC CE发送的可靠性;此外,可以及时通知网络设备分配边链路资源或者停止分配边链路 资源,减少了SL DRX command MAC CE的发送时延或者避免了边链路资源的浪费。
参照后文的说明和附图,详细公开了本申请的特定实施方式,指明了本申请的原理可以被采用的方式。应该理解,本申请的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内,本申请的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用,与其它实施方式中的特征相组合,或替代其它实施方式中的特征。
应该强调,术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在,但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本申请实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外,在附图中,类似的标号表示几个附图中对应的部件,并可用于指示多于一种实施方式中使用的对应部件。
图1是DRX周期的一个示意图;
图2是持续时间计时器和非激活计时器的示意图;
图3是本申请实施例的边链路非连续接收命令的触发方法的一示意图;
图4是本申请实施例的边链路非连续接收命令对应的调度请求的触发方法的一示意图;
图5是本申请实施例的资源池的选择方法的一示意图;
图6是本申请实施例的逻辑信道选择方法的一示意图;
图7是本申请实施例的逻辑信道选择方法的另一示意图;
图8是本申请实施例的边链路传输的发送方法的一示意图;
图9是边链路缓存状态报告的一个场景的示意图;
图10是本申请实施例的边链路缓存状态报告的生成方法的一示意图;
图11是本申请实施例的边链路非连续接收命令的触发装置的一示意图;
图12是本申请实施例的边链路非连续接收命令对应的调度请求的触发装置的一示意图;
图13是本申请实施例的资源池的选择装置的一示意图;
图14是本申请实施例的逻辑信道选择装置的一示意图;
图15是本申请实施例的逻辑信道选择装置的另一示意图;
图16是本申请实施例的边链路传输的发送装置的一示意图;
图17是本申请实施例的边链路缓存状态报告的生成装置的一示意图;
图18是本申请实施例的终端设备的一示意图。
具体实施方式
参照附图,通过下面的说明书,本申请的前述以及其它特征将变得明显。在说明书和附图中,具体公开了本申请的特定实施方式,其表明了其中可以采用本申请的原则的部分实施方式,应了解的是,本申请不限于所描述的实施方式,相反,本申请包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请实施例中,术语“第一”、“第二”等用于对不同元素从称谓上进行区分,但并不表示这些元素的空间排列或时间顺序等,这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在,但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本申请实施例中,单数形式“一”、“该”等包括复数形式,应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义;此外术语“所述”应理解为既包括单数形式也包括复数形式,除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”,术语“基于”应理解为“至少部分基于……”,除非上下文另外明确指出。
在本申请实施例中,术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络,例如长期演进(LTE,Long Term Evolution)、增强的长期演进(LTE-A,LTE-Advanced)、宽带码分多址接入(WCDMA,Wideband Code Division Multiple Access)、高速报文接入(HSPA,High-Speed Packet Access)等等。
并且,通信系统中设备之间的通信可以根据任意阶段的通信协议进行,例如可以包括但不限于如下通信协议:1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及5G、新无线(NR,New Radio)等等,和/或其他目前已知或未来将被开发的通信协议。
在本申请实施例中,术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备:基站(BS,Base Station)、接入点(AP、Access Point)、发送接收点(TRP,Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC,Radio Network Controller)、基站控制器(BSC,Base Station  Controller)等等。
其中,基站可以包括但不限于:节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB),等等,此外还可包括远端无线头(RRH,Remote Radio Head)、远端无线单元(RRU,Remote Radio Unit)、中继(relay)或者低功率节点(例如femeto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能,每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域,这取决于使用该术语的上下文。
在本申请实施例中,术语“用户设备”(UE,User Equipment)或者“终端设备”(TE,Terminal Equipment或Terminal Device)例如是指通过网络设备接入通信网络并接收网络服务的设备。终端设备可以是固定的或移动的,并且也可以称为移动台(MS,Mobile Station)、终端、用户台(SS,Subscriber Station)、接入终端(AT,Access Terminal)、站,等等。
其中,终端设备可以包括但不限于如下设备:蜂窝电话(Cellular Phone)、个人数字助理(PDA,Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机,等等。
再例如,在物联网(IoT,Internet of Things)等场景下,终端设备还可以是进行监控或测量的机器或装置,例如可以包括但不限于:机器类通信(MTC,Machine Type Communication)终端、车载通信终端、设备到设备(D2D,Device to Device)终端、机器到机器(M2M,Machine to Machine)终端,等等。
此外,术语“网络侧”或“网络设备侧”是指网络的一侧,可以是某一基站,也可以包括如上的一个或多个网络设备。术语“用户侧”或“终端侧”或“终端设备侧”是指用户或终端的一侧,可以是某一UE,也可以包括如上的一个或多个终端设备。本文在没有特别指出的情况下,“设备”可以指网络设备,也可以指终端设备。
图1是DRX周期(DRX cycle)的一个示意图,如图1所示,一个DRX周期规定了持续时间(On Duration)和之后可能的不活动时间(DRX机会,Opportunity for DRX);持续时间是终端设备在醒来之后等待接收SCI(例如包括监听PSCCH中的first stage SCI和/或PSSCH中的second stage SCI)的持续时间,如果一个终端设备成功解码了一个发送给自己的调度新传输的SCI,则终端设备保持醒来并启动一个非激活计时器(inactivity timer)。非激活计时器是指终端设备从上次成功解码SCI开始等待成功解码SCI的持续时间;如果在非激活计时器的计时时间中没有成功解码SCI,则终端设备回到睡眠状态; 终端设备在单次成功解码只用于初传的SCI之后要启动该非激活计时器。
在本申请实施例中,SL DRX的激活时间(active time)是指终端设备监听SCI(例如包括监听PSCCH和监听PSSCH中的second stage SCI)的总的时间,包括SL DRX周期的on-duration、inactivity timer还未超时时终端设备执行连续接收的时间、以及终端设备执行连续接收同时等待重传机会的时间。
在本申请实施例中,DRX配置还还可以包括重传计时器(retransmission timer),该重传计时器规定了预期可能会有重传的持续时间。
图2是持续时间计时器(on duration timer)和非激活计时器(inactivity timer)的示意图。
对于SL DRX,如图2所示,在持续时间计时器(on duration timer)运行期间,如果接收设备(Rx UE)接收到边链路非连续接收命令(SL DRX command),则停止该持续时间计时器,例如,如果Rx UE接收到对一个目标(destination)或者源-目标对(a pair of source ID and destination ID)或者PC5 5G业务质量指示(PC5 5G QoS identifier,PQI)的SL DRX command,则停止对该目标或者源-目标对或者PQI的持续时间计时器;此外,在持续时间计时器或非激活计时器(inactivity timer)运行期间,如果接收设备(Rx UE)接收到来自某个发送设备(Tx UE)的SCI,例如接收到PSCCH中的第一阶段SCI和/或PSSCH中的第二阶段SCI,则启动非激活计时器(inactivity timer),在非激活计时器的运行期间,如果接收到SL DRX command,则停止该非激活计时器,例如,如果Rx UE在持续时间计时器或非激活计时器运行期间收到一个Tx UE发送的针对一个目标或者源-目标对或者PQI的SL DRX command,则停止对该目标或者源-目标对或者PQI的inactivity timer。
在本申请实施例中,以第一终端设备与第二终端设备进行边链路传输为例进行说明。并且,第二终端设备使用SL DRX,或者说第二终端设备被配置了SL DRX,或者说第二终端设备进行SL DRX操作,等等。这里,SL DRX配置可能是网络设备为第二终端设备配置的,也可能是第二终端设备被预配置的,也可能是第一终端设备通过边链路为第二终端设备配置的(例如使用RRC reconfiguration sidelink消息等)。这里,边链路传输可以包括边链路数据或控制信息或反馈信息或参考信号等的传输。此外,从边链路传输发送的角度,本申请实施例的第一终端设备为发送设备(Tx UE),第二终端设备为接收设备(Rx UE)。
下面结合附图和具体实施方式对本申请实施例进行说明。
第一方面的实施例
本申请实施例提供一种边链路非连续接收命令(SL DRX command)的触发方法,从第一终端设备的一侧进行说明。
图3是本申请实施例的边链路非连续接收命令的触发方法的一示意图,如图3所示,该方法包括:
301,第一终端设备的MAC层在以下条件(称为第一条件)之一满足的情况下,触发边链路非连续接收命令:
一个目标(destination)或者源-目标对(a pair of source ID and destination ID)或者一个PC5 5G业务质量指示(PC5 5G QoS identifier,PQI)对应的逻辑信道没有数据待发送,或者在当前业务周期内没有数据待发送,或者在过去一段时间或一个计时器超时时没有数据待发送;
一个目标或者源-目标对没有MAC CE待发送,或者在当前业务周期内没有MAC CE待发送,或者在在过去一段时间或一个计时器超时时没有MAC CE待发送;
所述第一终端设备的上层指示所述第一终端设备的MAC层没有数据要发送或者在一段时间内没有数据要发送。
在本申请实施例中,在上述第一条件之一满足的情况下,触发(trigger)边链路非连续接收命令,由此,边链路非连续接收命令可以在正确的时刻被触发或取消,能够节省接收设备(Rx UE)的耗电或防止数据发送的时延增大。
在一些实施例中,一个目标或者源-目标对或者一个PQI对应的逻辑信道没有数据待发送是指:一个目标或者源-目标对或者一个PQI对应的逻辑信道的缓存大小为0。本申请不限于此,上述逻辑信道没有数据待发送还可能是表述其他。
在一些实施例中,上述第一条件中的当前业务周期包括以下至少之一:边链路业务的周期,例如当边链路业务是周期性业务时;边链路非连续接收的周期(SL DRX cycle);边链路非连续接收的持续时间计时器(SL DRX on-duration timer)的计时周期;边链路非连续接收的非激活计时器(SL DRX inactivity timer)的计时周期。本申请不限于此。此外,上述计时周期是指上述计时器的值,该计时器的值表明了该计时器的一个计时周期。
在一些实施例中,上述第一条件中的计时器包括以下至少之一:网络设备配置(例如通过RRC消息配置的)的或预定义的计时器;边链路非连续接收的持续时间计时器 (SL DRX on-duration timer);边链路非连续接收的非激活计时器(SL DRX inactivity timer)。其中,SL DRX on-duration timer和/或SL DRX inactivity timer可以是网络设备通过系统信息或RRC专用消息配置的,也可以是预配置的。本申请不限于此。
在一些实施例中,上述第一条件中的时间包括以下至少之一:网络设备配置的(例如通过RRC消息配置的)或预定义的时间;边链路业务的周期;边链路非连续接收的周期(SL DRX cycle);边链路非连续接收的持续时间计时器(SL DRX on-duration timer)的计时周期;边链路非连续接收的非激活计时器(SL DRX inactivity timer)的计时周期。本申请不限于此。此外,上述计时周期是指上述计时器的值,该计时器的值表明了该计时器的一个计时周期。
在一些实施例中,上述SL DRX cycle和/或SL DRX on-duration timer和/或SL DRX inactivity timer的计时周期可以是网络设备通过系统信息或RRC专用消息配置的,也可以是预配置的,也可以是SL对端的终端设备通过SL RRC消息配置的。本申请对此不做限制。
在一些实施例中,上述条第一条件中的上层为以下之一:车辆对所有(V2X)层,非接入层(NAS),无线资源控制(RRC)层。本申请不限于此。
在一些实施例中,第一终端设备的MAC层在有边链路资源时生成边链路非连续接收命令MAC CE(SL DRX command MAC CE),通过该边链路资源将该边链路非连续接收命令MAC CE发送到第二终端设备。
在本申请实施例中,如图3所示,该方法还可以包括:
302,所述第一终端设备的MAC层在以下条件(称为第二条件)之一满足的情况下,取消边链路非连续接收命令:
对于所述边链路非连续接收命令被触发的目标或者源-目标对或者PQI,新数据到达所述目标或者源-目标对或者PQI对应的逻辑信道;
对于所述边链路非连续接收命令被触发的目标或者源-目标对,有其它MAC CE被触发;
所述第一终端设备的上层指示所述第一终端设备的MAC层将有数据到达;
所述边链路非连续接收命令的媒体接入控制控制单元(MAC CE)在边链路中被发送;
所述第一终端设备接收到所述第二终端设备发送的混合自动重传请求(HARQ)反馈;
所述第一终端设备的上层重新配置了非连续接收配置。
在本申请实施例中,在上述第二条件之一满足的情况下,取消(cancel)边链路非连续接收命令。由此,边链路非连续接收命令可以在正确的时刻被取消,能够让接收设备(Rx UE)保持监听边链路SCI和/或数据,防止数据发送的时延增大。
在一些实施例中,上述其它MAC CE可以是边链路上将要发送的其它MAC CE,例如SL CSI上报MAC CE。
在一些实施例中,第一终端设备的上层重新配置了非连续接收配置包括:针对所述边链路非连续接收命令被触发的目标或者源-目标对或者PQI,所述第一终端设备的上层重新配置了SL和/或DL非连续接收配置。本申请不限于此。
在一些实施例中,非连续接收配置包括:SL DRX on-duration timer的值和/或SL DRX inactivity timer的值和/或SL DRX retransmission timer的值和/或SL DRX cycle的值和/或CSI上报的时延上限等。
在一些实施例中,上述第二条件中的上层为以下之一:车辆对所有(V2X)层,非接入层(NAS),无线资源控制(RRC)层。本申请不限于此。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是,以上以单独实施操作301或者联合实施操作301和302为例进行了说明,但本申请不限于此,还可以单独实施操作302,也即,操作302的实施不依赖于301,第一终端设备的MAC层在上述第二条件之一满足的情况下,取消边链路非连续接收命令。
根据本申请实施例的方法,能够节省接收设备(Rx UE)的耗电或防止数据发送的时延增大。
第二方面的实施例
本申请实施例提供一种边链路非连续接收命令对应的调度请求的触发方法,从第一终端设备的一侧进行说明。
图4是本申请实施例的边链路非连续接收命令对应的调度请求的触发方法的一示意图,如图4所示,该方法包括:
401,第一终端设备在触发了边链路非连续接收命令后,触发所述边链路非连续接 收命令对应的第一调度请求。
在上述实施例中,当边链路非连续接收命令被触发后,触发对应的SR(称为第一调度请求),以请求网络设备为其分配边链路资源,网络设备可以据此为第一终端设备分配合适的边链路资源。
在一些实施例中,第一终端设备可以在以下条件(第三条件)之一满足的情况下,触发所述边链路非连续接收命令对应的所述第一调度请求:
没有用于新传输的边链路资源(SL grant);
用于新传输的边链路资源(SL grant)不能容纳边链路非连续接收命令MAC CE及其子头(sub-header);
用于新传输的边链路资源(SL grant)不能容纳边链路非连续接收命令MAC CE的子头。
在上述实施例中,根据上述第一调度请求,网络设备可以为第一终端设备分配合适的SL grant。
在本申请实施例中,可选的,如图4所示,该方法还可以包括:
402,所述第一终端设备在发送了所述边链路非连续接收命令后,触发所述边链路非连续接收命令对应的第二调度请求。
在上述实施例中,当边链路非连续接收命令被发送后,触发对应的SR(称为第二调度请求),以告知网络设备不用再为其分配边链路资源,网络设备可以据此停止为第一终端设备分配边链路资源。
在一些实施例中,第一终端设备可以在以下条件(第四条件)之一满足的情况下,触发所述边链路非连续接收命令对应的所述第二调度请求:
用于新传输的边链路资源(SL grant)能够容纳边链路非连续接收命令MAC CE及其子头以及所有等待发送的数据;
用于新传输的边链路资源(SL grant)能够容纳边链路非连续接收命令MAC CE的子头以及所有等待发送的数据。
在上述实施例中,根据上述第二调度请求,网络设备可以停止为第一终端设备分配SL grant。
在一些实施例中,网络设备还可以为边链路非连续接收命令配置至少一个对应的SR配置。例如,第一终端设备可以接收网络设备发送的配置信息,该配置信息包含上述至少一个SR配置,第一终端设备可以使用该至少一个SR配置中的至少一个SR配置 发送上述边链路非连续接收命令对应的上述第一调度请求和/或上述第二调度请求。
在一些实施例中,上述配置信息包含于RRC信令中,也即,网络设备通过RRC信令配置上述至少一个SR配置,但本申请不限于此,上述配置信息也可以包含于网络设备下发的其他信令中。
在一些实施例中,上述SR配置包括部分带宽(BWP)上的PUCCH资源,也即,第一终端设备使用该部分带宽上的PUCCH资源发送上述第一调度请求和/或上述第二调度请求。
在一些实施例中,上述至少一个SR配置为以下至少之一:所述网络设备为所述边链路非连续接收命令MAC CE配置的SR配置;所述网络设备为边链路逻辑信道配置的SR配置;所述网络设备为边链路信道状态信息上报的MAC CE配置的SR配置;所述网络设备为边链路或上行链路的逻辑信道或MAC CE配置的SR配置。
例如,第一终端设备在触发了边链路非连续接收命令后,在上述第三条件之一满足的情况下,第一终端设备可以使用上述SR配置至少之一向网络设备发送第一调度请求,请求网络设备为其分配边链路资源。
再例如,第一终端设备在发送了边链路非连续接收命令后,在上述第四条件之一满足的情况下,第一终端设备可以使用上述SR配置至少之一向网络设备发送第二调度请求,告知网络设备不用再为其分配边链路资源。
在一些实施例中,网络设备可以在RRC重配置消息中为第一调度请求和第二调度请求配置不同的SR配置。由此,网络设备可以区分不同的情况。但本申请不限于此,第一调度请求和第二调度请求也可以具有相同的SR配置。
在本申请实施例中,可选的,如图4所示,该方法还可以包括:
403,当边链路非连续接收命令MAC CE被发送时,取消所述边链路非连续接收命令对应的所述第一调度请求。
在上述实施例中,当边链路非连续接收命令MAC CE被发送后,取消该边链路非连续接收命令对应的SR(第一调度请求),以告知网络设备不用再为其分配边链路资源,网络设备可以据此停止为第一终端设备分配边链路资源。
值得注意的是,以上附图4仅对本申请实施例进行了示意性说明,但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序,此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型,而不仅限于上述附图4的记载。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是,以上以单独实施操作401或者联合实施操作401和402为例进行了说明,但本申请不限于此,还可以单独实施操作402,也即,操作402的实施不依赖于401,第一终端设备在发送了所述边链路非连续接收命令后,触发所述边链路非连续接收命令对应的第二调度请求。
根据本申请实施例的方法,避免了边链路资源的浪费。
第三方面的实施例
本申请实施例提供一种资源池的选择方法,从第一终端设备的一侧进行说明。
图5是本申请实施例的资源池的选择方法的一示意图,如图5所示,该方法包括:
501,如果边链路逻辑信道有数据待发送并且边链路非连续接收命令被触发,则第一终端设备基于所述边链路逻辑信道和所述边链路非连续接收命令的优先级,根据所述边链路逻辑信道的HARQ反馈属性或者根据所述边链路非连续接收命令的HARQ反馈属性选择资源池。
在上述实施例中,在选择资源池时,考虑了边链路非连续接收命令的优先级和HARQ feedback属性,保证了边链路非连续接收命令MAC CE发送的可靠性。
在一些实施例中,如果边链路逻辑信道的优先级高于或等于边链路非连续接收命令的优先级,则第一终端设备在所述边链路逻辑信道的HARQ反馈属性(sl-HARQ-FeedbackEnabled)被配置为使能(enabled)时,从网络设备配置的或预配置的资源池中选择被配置了PSFCH资源的资源池。否则,也即,如果边链路逻辑信道的HARQ反馈属性没有被配置为使能(enabled),则从网络设备配置的或预配置的资源池中选择一个资源池。
在一些实施例中,如果边链路非连续接收命令的优先级高于边链路逻辑信道的优先级,则第一终端设备在边链路非连续接收命令的HARQ反馈属性(sl-HARQ-FeedbackEnabled)被配置为使能(enabled)时,从网络设备配置的或预配置的资源池中选择被配置了PSFCH资源的资源池。否则,也即,如果边链路非连续接收命令的HARQ反馈属性(sl-HARQ-FeedbackEnabled)没有被配置为使能(enabled),则从网络设备配置的或预配置的资源池中选择一个资源池。
在上述实施例中,如果仅有逻辑信道的数据待发送,则第一终端设备可以在边链路逻辑信道的HARQ反馈属性被配置为enabled时,从网络设备配置的或预配置的资源池中选择被配置了PSFCH资源的资源池;否则,也即边链路逻辑信道的HARQ反馈属性没有被配置为enabled,则第一终端设备从网络设备配置的或预配置的资源池中选择一个资源池。
在上述实施例中,如果仅有边链路非连续接收命令被触发,则第一终端设备可以在该边链路非连续接收命令的HARQ反馈属性被配置为enabled时,从网络设备配置的或预配置的资源池中选择被配置了PSFCH资源的资源池;否则,也即边链路非连续接收命令的HARQ反馈属性没有被配置为enabled,则第一终端设备从网络设备配置的或预配置的资源池中选择一个资源池。
在上述实施例中,如果有SL-CSI上报(SL-CSI reporting)被触发,则第一终端设备可以从网络设备配置的或预配置的资源池中选择一个资源池。
上述各实施例可以描述为:
Figure PCTCN2021084768-appb-000001
在上述实施例中,网络设备配置的资源池是指网络设备通过系统信息或者RRC专 用信令配置的用于边链路传输(SL transmission)的资源池,预配置的资源池是指通过预配置(pre-configuration)配置的用于边链路发送的资源池。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
根据本申请实施例的方法,保证了边链路非连续接收命令MAC CE发送的可靠性。
第四方面的实施例
本申请实施例提供一种逻辑信道选择方法,从第一终端设备的一侧进行说明。
图6是本申请实施例的逻辑信道选择方法的一示意图,如图6所示,该方法包括:
601,第一终端设备确定用于发送边链路传输的边链路资源;
602,所述第一终端设备在逻辑信道优先级处理(LCP)过程中选择目标(destination),所述目标具有第一MAC CE和/或满足预定条件的第一逻辑信道中最高优先级的第二逻辑信道或者第二MAC CE,所述第一MAC CE满足以下条件(第五条件):
如果所述边链路资源没有被配置PSFCH,所述MAC CE的HARQ反馈属性被配置为去能(disabled)。
在上述实施例中,对边链路的LCP过程或边链路MAC PDU组装过程或边链路MAC PDU生成过程,对没有被配置PSFCH的SL grant,第一终端设备在选择destination时,从满足预定条件的逻辑信道(第一逻辑信道)中以及满足以上第五条件的MAC CE(第一MAC CE)中选择具有最高优先级的逻辑信道(第二逻辑信道)或MAC CE(第二MAC CE),将选择的该MAC CE或逻辑信道所在的destination作为目标。
在上述实施例中,所述预定条件包括:
有边链路数据待发送;
如果有逻辑信道的边链路令牌大于0,逻辑信道的边链路令牌大于0;
如果SL grant是Type 1边链路配置的授权(Configured Grant Type 1),逻辑信道被允许使用Type 1边链路配置的授权(configured grant)发送;
逻辑信道被配置允许使用SL grant关联的配置的授权(configured grant)的索引;
如果SL grant没有被配置PSFCH,逻辑信道的边链路HARQ反馈属性被设置为disabled。
关于上述预定条件,可以参考相关技术,此处省略说明。
图7是本申请实施例的逻辑信道选择方法的另一示意图,如图7所示,该方法包括:
701,第一终端设备确定用于发送边链路传输的边链路资源;
702,如果所述边链路资源被配置了PSFCH,并且,满足预定条件的最高优先级的逻辑信道或边链路非连续接收命令MAC CE对应的HARQ反馈属性被配置为enabled,则所述第一终端设备在LCP过程中选择HARQ反馈属性被配置为enabled的逻辑信道或边链路非连续接收命令MAC CE;
703,如果所述边链路资源被配置了PSFCH,并且,满足预定条件的最高优先级的逻辑信道或边链路非连续接收命令MAC CE对应的HARQ反馈属性被配置为disabled,则所述第一终端设备在LCP过程中选择HARQ反馈属性被配置为disabled的逻辑信道或边链路非连续接收命令MAC CE。
在上述实施例中,对边链路的LCP过程,对配置了PSFCH的SL grant,如果最高优先级的逻辑信道或边链路非连续接收命令MAC CE对应的HARQ feedback为enabled,则选择HARQ feedback为enabled的逻辑信道或边链路非连续接收命令MAC CE;如果最高优先级的逻辑信道或边链路非连续接收命令MAC CE对应的HARQ feedback为disabled,则选择HARQ feedback为disabled的逻辑信道或边链路非连续接收命令MAC CE。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
例如,结合图6和图7的实施例,对当前标准可以有如下修改:
Figure PCTCN2021084768-appb-000002
Figure PCTCN2021084768-appb-000003
在上述图6和图7的实施例中,根据边链路非连续接收命令MAC CE的HARQ属性进行LCP过程,保证了该MAC CE发送的可靠性。
第五方面的实施例
本申请实施例提供一种边链路传输的发送方法,从第一终端设备的一侧进行说明。
图8是本申请实施例的边链路传输的发送方法的一示意图,如图8所示,该方法包括:
801,第一终端设备向第二终端设备发送边链路非连续接收命令MAC CE,所述边链路非连续接收命令MAC CE具有被配置的或者预定义的优先级。
在上述实施例中,由于边链路非连续接收命令MAC CE具有被配置的或者预定义的优先级,由此,可以根据该优先级进行边链路资源的分配,或者,也可以与其他MAC CE或逻辑信道或上行传输的优先级进行比较,增强了边链路传输的可靠性。
在一些实施例中,如图8所示,所述方法还包括:
802,所述第一终端设备向所述第二终端设备发送边链路控制信息(SCI),所述边链路控制信息指示所述边链路非连续接收命令MAC CE的优先级。
在上述实施例中,第一终端设备在SCI中可以向第二终端设备指示该SCI对应的SL数据的优先级,即该边链路非连续接收命令MAC CE的优先级,由此,进一步增强了边链路传输的可靠性。
在本申请实施例中,在SCI中指示的边链路非连续接收命令MAC CE的优先级或者在UL和SL优先级比较过程中使用的边链路非连续接收命令MAC CE的优先级可以是1-8之间的整数,例如是1或2,取值越小表示优先级越高。
在一些实施例中,如图8所示,所述方法还包括:
803,所述第一终端设备使用所述被配置的或者预定义的优先级决定发送边链路传输或者发送上行传输。
在上述实施例中,第一终端设备可以使用上述优先级来决定是发送边链路传输还是发送上行传输。
值得注意的是,以上附图8仅对本申请实施例进行了示意性说明,但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序,此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型,而不仅限于上述附图8的记载。
在一些实施例中,在所述第一终端设备进行LCP过程中,所述边链路非连续接收命令MAC CE的优先级低于边链路业务信道的数据的优先级。
在上述实施例中,在LCP的资源分配过程中,边链路非连续接收命令MAC CE的优先级可以低于边链路业务信道(Sidelink Traffic Channel,STCH)的数据的优先级。由此,可以保证边链路业务数据优先于边链路非连续接收命令MAC CE发送,使第二终端设备正确接收边链路业务数据后再根据收到的边链路非连续接收命令MAC CE停止对边链路业务数据的接收。
在一些实施例中,在所述第一终端设备进行LCP过程中,所述边链路非连续接收命令MAC CE的优先级也可以低于边链路控制信道的数据的优先级且高于边链路CSI上报MAC CE的优先级,或者低于边链路CSI上报MAC CE的优先级且高于边链路业务信道的数据的优先级,本申请不做限制。关于边链路CSI上报MAC CE的优先级的含义,可以参考相关技术,此处省略说明。
在一些实施例中,第一终端设备可以在生成所述边链路非连续接收命令MAC CE时,生成一个MAC PDU。
例如,对应标准可以有如下修改:
Figure PCTCN2021084768-appb-000004
根据本申请实施例的方法,增强了边链路传输的可靠性。
第六方面的实施例
发明人发现,在当前的标准中,对SL-BSR MAC CE中的Buffer Size域有如下的描述:
Figure PCTCN2021084768-appb-000005
在当前标准中,SL-BSR MAC CE被生成的条件是,有用于新传输的UL-SCH资源且该UL-SCH资源在LCP过程中可以容纳SL-BSR MAC CE加上它的sub-header。也就是说,会有包含该SL-BSR MAC CE的UL MAC PDU被构建。
然而,在生成SL-BSR MAC CE时,边链路上可能有传输,也可能没有传输,如图9所示,因此,可能有SL MAC PDU被构建,也可能没有SL MAC PDU被构建,上述当前的标准文字中的“MAC PDU”是指UL MAC PDU还是SL MAC PDU是模糊的。
假设上述标准文字中的“MAC PDU”是指UL MAC PDU,由于边链路的缓存大小(buffer size)与UL MAC PDU的构建或UL LCP过程没有关系,如果在边链路上没有数据传输,那么就不会导致边链路的缓存大小域的值是0。
假设上述标准文字中的“MAC PDU”是指SL MAC PDU,如果在边链路上没有数据传输,则不会有SL MAC PDU;如果在边链路上有数据传输,只有边链路传输与SL-BSR的发送在时间中重叠而且终端设备有能力同时发送边链路(SL)和上行链路(UL)时,才对SL-BSR的buffer size的取值有影响。
因此,上述标准文字中“after the MAC PDU has been built(i.e.after the logical channel prioritization procedure,which may result the value of the Buffer Size field to zero)”的限定 是不清楚的。
针对上述问题,本申请实施例提供一种边链路缓存状态报告的生成方法,从第一终端设备的一侧进行说明。其中,第一终端设备与第二终端设备进行边链路传输。从边链路数据传输发送的角度,本申请实施例的第一终端设备为发送设备(Tx UE),第二终端设备为接收设备(Rx UE)。
图10是本申请实施例的边链路缓存状态报告的生成方法的一示意图,如图10所示,该方法包括:
1001,第一终端设备生成边链路缓存状态报告(SL-BSR),所述边链路缓存状态报告中的缓存大小域(buffer size filed)标识了以下至少之一:
在MAC PDU构建之后目标的逻辑信道组的所有逻辑信道的可用数据总量,所述MAC PDU包括边链路缓存状态报告MAC CE或者,所述MAC PDU为UL MAC PDU;
在MAC PDU构建时目标的逻辑信道组的所有逻辑信道的可用数据总量,所述MAC PDU包括边链路缓存状态报告的MAC CE或者,所述MAC PDU为UL MAC PDU;
在边链路缓存状态报告的MAC CE被生成时目标的逻辑信道组的所有逻辑信道的可用数据总量;
在边链路缓存状态报告的MAC CE被触发时目标的逻辑信道组的所有逻辑信道的可用数据总量;
在边链路的MAC PDU构建之后目标的逻辑信道组的所有逻辑信道的可用数据总量,其中,上行传输和边链路传输在时间上重叠并且所述第一终端设备具有同时进行上行传输和边链路传输的能力,其中,在边链路LCP过程之后,会导致缓存大小域的值为零。
1002,所述第一终端设备向网络设备发送所述边链路缓存状态报告。
在上述实施例中,通过对SL-BSR中的buffer size域的描述进行修改,有利于网络设备知道终端设备的边链路缓存状态,从而进行适应性调度,以满足边链路业务的QoS要求。
在一些实施例中,SL-BSR中的buffer size域标识了:在MAC PDU构建之后目标的逻辑信道组的所有逻辑信道的可用数据总量,所述MAC PDU包括边链路缓存状态报告MAC CE或者,所述MAC PDU为UL MAC PDU。
例如,对应标准,可以有如下修改:
Figure PCTCN2021084768-appb-000006
Figure PCTCN2021084768-appb-000007
或者,对应标准,可以有如下修改:
Figure PCTCN2021084768-appb-000008
在一些实施例中,SL-BSR中的buffer size域标识了:在MAC PDU构建时目标的逻辑信道组的所有逻辑信道的可用数据总量,所述MAC PDU包括边链路缓存状态报告的MAC CE或者,所述MAC PDU为UL MAC PDU。
例如,对应标准,可以有如下修改:
Figure PCTCN2021084768-appb-000009
或者,对应标准,可以有如下修改:
Figure PCTCN2021084768-appb-000010
在一些实施例中,SL-BSR中的buffer size域标识了:在边链路缓存状态报告的MAC CE被生成时目标的逻辑信道组的所有逻辑信道的可用数据总量。
例如,对应标准,可以有如下修改:
Figure PCTCN2021084768-appb-000011
Figure PCTCN2021084768-appb-000012
在一些实施例中,SL-BSR中的buffer size域标识了:在边链路缓存状态报告的MAC CE被触发时目标的逻辑信道组的所有逻辑信道的可用数据总量。
例如,对应标准,可以有如下修改:
Figure PCTCN2021084768-appb-000013
在一些实施例中,SL-BSR中的buffer size域标识了:在边链路的MAC PDU构建之后目标的逻辑信道组的所有逻辑信道的可用数据总量,其中,上行传输和边链路传输在时间上重叠并且所述第一终端设备具有同时进行上行传输和边链路传输的能力,其中,在边链路LCP过程之后,会导致缓存大小域的值为零。
例如,对应标准,可以有如下修改:
Figure PCTCN2021084768-appb-000014
在上述实施例中,目标的逻辑信道组的所有逻辑信道的可用数据总量是根据技术规范38.322和38.323中的数据量计算过程得到的。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也 可以将以上各个实施例中的一种或多种结合起来。例如,最后一种标识方式可以和前面四种标识方式相结合。
根据本申请实施例的方法,终端设备的MAC层关于确定SL-BSR中buffer size域的行为被清楚定义,有利于网络设备知道终端设备的边链路的缓存状态,从而进行适应性调度,以满足边链路业务的QoS要求。
第七方面的实施例
本申请实施例提供一种边链路非连续接收命令的触发装置。
图11是本申请实施例的边链路非连续接收命令的触发装置的一示意图。该装置例如可以是终端设备(例如前述的第一终端设备),也可以是配置于终端设备的某个或某些部件或者组件,与第一方面的实施例相同的内容不再赘述。
如图11所示,边链路非连续接收命令的触发装置1100包括:
触发单元1101,其在所述第一终端设备的MAC层在以下条件之一满足的情况下,触发边链路非连续接收命令:
一个目标或者源-目标对或者一个PC5 5G业务质量指示(PC5 5G QoS identifier,PQI)对应的逻辑信道没有数据待发送,或者在当前业务周期内没有数据待发送,或者在过去一段时间或一个计时器超时时没有数据待发送;
一个目标或者源-目标对没有MAC CE待发送,或者在当前业务周期内没有MAC CE待发送,或者在在过去一段时间或一个计时器超时时没有MAC CE待发送;
所述第一终端设备的上层指示所述第一终端设备的MAC层没有数据要发送或者在一段时间内没有数据要发送。
在一些实施例中,一个目标或者源-目标对或者一个PQI对应的逻辑信道没有数据待发送是指:一个目标或者源-目标对或者一个PQI对应的逻辑信道的缓存大小为0。
在一些实施例中,所述当前业务周期包括以下至少之一:边链路业务的周期(在边链路业务是周期性业务的情况下);边链路非连续接收的周期(SL DRX cycle);边链路非连续接收的持续时间计时器(SL DRX on-duration timer)的计时周期;边链路非连续接收的非激活计时器(SL DRX inactivity timer)的计时周期。
在一些实施例中,所述计时器包括以下至少之一:网络设备配置的或预定义的计时器;边链路非连续接收的持续时间计时器(SL DRX on-duration timer);边链路非连续接收的非激活计时器(SL DRX inactivity timer)。
其中,SL DRX on-duration timer和/或SL DRX inactivity timer可以是网络设备通过系统信息或RRC专用消息配置的,也可以是预配置的。
在一些实施例中,所述时间包括以下至少之一:络设备配置的或预定义的时间;边链路业务的周期;边链路非连续接收的周期(SL DRX cycle);边链路非连续接收的持续时间计时器(SL DRX on-duration timer)的计时周期;边链路非连续接收的非激活计时器(SL DRX inactivity timer)的计时周期。
其中,上述SL DRX cycle和/或SL DRX on-duration timer和/或SL DRX inactivity timer的计时周期可以是网络设备通过系统信息或RRC专用消息配置的,也可以是预配置的,也可以是SL对端的终端设备通过SL RRC消息配置的。
在一些实施例中,所述上层为以下之一:车辆对所有(V2X)层,非接入层(NAS),无线资源控制(RRC)层。
在一些实施例中,第一终端设备的MAC层在有边链路资源时生成边链路非连续接收命令MAC CE,通过该边链路资源将该边链路非连续接收命令MAC CE发送到第二终端设备。则本申请实施例的装置1100还可以包括生成单元(图未示)和发送单元(图未示),生成单元生成上述边链路非连续接收命令MAC CE,发送单元通过获得的边链路资源将该边链路非连续接收命令MAC CE发送到第二终端设备。
在一些实施例中,如图11所示,该装置1100还包括:
取消单元1102,其在所述第一终端设备的MAC层在以下条件之一满足的情况下,取消边链路非连续接收命令:
对于所述边链路非连续接收命令被触发的目标或者源-目标对或者PQI,新数据到达所述目标或者源-目标对或者PQI对应的逻辑信道;
对于所述边链路非连续接收命令被触发的目标或者源-目标对,有其它MAC CE被触发;
所述第一终端设备的上层指示所述第一终端设备的MAC层将有数据到达;
所述边链路非连续接收命令的媒体接入控制控制单元(MAC CE)在边链路中被发送;
所述第一终端设备接收到所述第二终端设备发送的混合自动重传请求(HARQ)反馈;
所述第一终端设备的上层重新配置了非连续接收配置。
在一些实施例中,上述其它MAC CE可以是边链路上将要发送的其它MAC CE, 例如SL CSI上报MAC CE。
在一些实施例中,所述上层为以下之一:车辆对所有(V2X)层,非接入层(NAS),无线资源控制(RRC)层。
在一些实施例中,所述第一终端设备的上层重新配置了非连续接收配置包括:
针对所述边链路非连续接收命令被触发的目标或者源-目标对或者PQI,所述第一终端设备的上层重新配置了SL和/或DL非连续接收配置。
在一些实施例中,非连续接收配置包括:SL on-duration timer的值和/或SL inactivity timer的值和/或SL retransmission timer的值和/或SL DRX cycle的值和/或CSI上报的时延上限等。
值得注意的是,以上仅对与本申请相关的各部件或模块进行了说明,但本申请不限于此。装置1100还可以包括其他部件或者模块,关于这些部件或者模块的具体内容,可以参考相关技术。此外,图11中的各模块可以单独实施,也可以进行任意组合联合起来实施,例如触发单元1101和取消单元1102可以分别单独实施,本申请对此不作限制。
此外,为了简单起见,图11中仅示例性示出了各个部件或模块之间的连接关系或信号走向,但是本领域技术人员应该清楚的是,可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现;本申请实施并不对此进行限制。
根据本申请实施例的装置,边链路非连续接收命令MAC CE可以在正确的时刻被触发或取消,能够节省接收设备的耗电或防止数据发送的时延增大。
第八方面的实施例
本申请实施例提供一种边链路非连续接收命令对应的调度请求的触发装置。
图12是本申请实施例的边链路非连续接收命令对应的调度请求的触发装置的一示意图。该装置例如可以是终端设备(例如前述的第一终端设备),也可以是配置于终端设备的某个或某些部件或者组件,与第二方面的实施例相同的内容不再赘述。
如图12所示,边链路非连续接收命令对应的调度请求的触发装置1200包括:
第一触发单元1201,其在触发了边链路非连续接收命令后,触发所述边链路非连续接收命令对应的第一调度请求。
在上述实施例中,第一触发单元1201在以下条件之一满足的情况下,触发所述边 链路非连续接收命令对应的所述第一调度请求:没有用于新传输的边链路资源;用于新传输的边链路资源不能容纳边链路非连续接收命令MAC CE及其子头;用于新传输的边链路资源不能容纳边链路非连续接收命令MAC CE的子头。
在一些实施例中,如图12所示,该装置1200还包括:
第二触发单元1202,其在发送了所述边链路非连续接收命令后,触发所述边链路非连续接收命令对应的第二调度请求。
在一些实施例中,第二触发单元1202在以下条件之一满足的情况下,触发所述边链路非连续接收命令对应的所述第二调度请求:用于新传输的边链路资源能够容纳边链路非连续接收命令MAC CE及其子头以及所有等待发送的数据;用于新传输的边链路资源能够容纳边链路非连续接收命令MAC CE的子头以及所有等待发送的数据。
在一些实施例中,如图12所示,该装置1200还包括:
接收单元1203,其接收网络设备发送的配置信息,所述配置信息包含至少一个SR配置;
发送单元1204,其使用所述至少一个SR配置中的至少一个SR配置发送所述边链路非连续接收命令对应的第一调度请求和/或第二调度请求。
其中,发送单元1204可以和第一触发单元1201和/或第二触发单元1202合并。
在一些实施例中,所述配置信息包含于RRC信令中。
在一些实施例中,所述SR配置包括部分带宽(BWP)上的PUCCH资源。由此,发送单元1204可以使用该PUCCH资源发送前述第一调度请求和/或第二调度请求。
在一些实施例中,所述至少一个SR配置为以下至少之一:
所述网络设备为所述边链路非连续接收命令MAC CE配置的SR配置;
所述网络设备为边链路逻辑信道配置的SR配置;
所述网络设备为边链路信道状态信息上报的MAC CE配置的SR配置;
所述网络设备为边链路或上行链路的逻辑信道或MAC CE配置的SR配置。
在一些实施例中,网络设备可以在RRC重配置消息中为第一调度请求和第二调度请求配置不同的SR配置。
在一些实施例中,如图12所示,该装置1200还包括:
取消单元1205,其当边链路非连续接收命令MAC CE被发送时,取消所述边链路非连续接收命令对应的所述第一调度请求。
值得注意的是,以上仅对与本申请相关的各部件或模块进行了说明,但本申请不限 于此。装置1200还可以包括其他部件或者模块,关于这些部件或者模块的具体内容,可以参考相关技术。此外,图12中的各模块可以单独实施,也可以进行任意组合联合起来实施,例如第一触发单元1201和第二触发单元1202可以分别单独实施,本申请对此不作限制。
此外,为了简单起见,图12中仅示例性示出了各个部件或模块之间的连接关系或信号走向,但是本领域技术人员应该清楚的是,可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现;本申请实施并不对此进行限制。
根据本申请实施例的装置,可以及时通知网络设备停止分配边链路资源,避免了边链路资源的浪费。
第九方面的实施例
本申请实施例提供一种资源池的选择装置。
图13是本申请实施例的资源池的选择装置的一示意图。该装置例如可以是终端设备设备(例如前述的第一终端设备),也可以是配置于终端设备的某个或某些部件或者组件,与第三方面的实施例相同的内容不再赘述。
在本申请实施例中,资源池的选择装置配置于第一终端设备,第一终端设备与第二终端设备进行边链路传输,第二终端设备使用SL DRX。如图13所示,资源池的选择装置1300包括:
选择单元1301,如果边链路的逻辑信道有数据待发送并且边链路非连续接收命令被触发,则选择单元1301基于所述边链路的逻辑信道和所述边链路非连续接收命令的优先级,根据所述边链路的逻辑信道的HARQ反馈属性或者根据所述边链路非连续接收命令的HARQ反馈属性选择资源池。
在一些实施例中,如果所述边链路的逻辑信道的优先级高于或等于所述边链路非连续接收命令的优先级,则选择单元1301在所述边链路的逻辑信道的HARQ反馈属性被配置为使能(enabled)时,从网络设备配置的或预配置的资源池中选择被配置了PSFCH资源的资源池。
在一些实施例中,如果所述边链路非连续接收命令的优先级高于所述边链路的逻辑信道的优先级,则选择单元1301在所述边链路非连续接收命令的HARQ反馈属性被配置为使能(enabled)时,从网络设备配置的或预配置的资源池中选择被配置了PSFCH 资源的资源池。
值得注意的是,以上仅对与本申请相关的各部件或模块进行了说明,但本申请不限于此。装置1300还可以包括其他部件或者模块,关于这些部件或者模块的具体内容,可以参考相关技术。
此外,上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现;本申请实施并不对此进行限制。
根据本申请实施例的装置,保证了边链路非连续接收命令MAC CE发送的可靠性。
第十方面的实施例
本申请实施例提供一种逻辑信道选择装置。
图14是本申请实施例的逻辑信道选择装置的一示意图。该装置例如可以是终端设备(例如前述的第一终端设备),也可以是配置于终端设备的某个或某些部件或者组件,与第四方面的实施例中图6的示例相同的内容不再赘述。
如图14所示,逻辑信道选择装置1400包括:
确定单元1401,其确定用于发送边链路传输的边链路资源;
选择单元1402,其在逻辑信道优先级(LCP)过程中选择目标,所述目标具有第一MAC CE和/或满足预定条件的第一逻辑信道中最高优先级的第二逻辑信道或第二MAC CE,所述第一MAC CE满足以下条件:
如果所述边链路资源没有被配置PSFCH,所述MAC CE的HARQ反馈属性被配置为去能(disabled)。
图15是本申请实施例的逻辑信道选择装置的另一示意图。该装置例如可以是终端设备(例如前述的第一终端设备),也可以是配置于终端设备的某个或某些部件或者组件,与第四方面的实施例中图7的示例相同的内容不再赘述。
如图15所示,逻辑信道选择装置1500包括:
确定单元1501,其确定用于发送边链路传输的边链路资源;
选择单元1502,如果所述边链路资源被配置了PSFCH,并且,满足预定条件的最高优先级的逻辑信道或边链路非连续接收命令MAC CE对应的HARQ反馈属性被配置为enabled,则选择单元1502在LCP过程中选择HARQ反馈属性被配置为enabled的逻辑信道或边链路非连续接收命令MAC CE;
如果所述边链路资源被配置了PSFCH,并且,满足预定条件的最高优先级的逻辑 信道或边链路非连续接收命令MAC CE对应的HARQ反馈属性被配置为disabled,则选择单元1502在LCP过程中选择HARQ反馈属性被配置为disabled的逻辑信道或边链路非连续接收命令MAC CE。
值得注意的是,以上仅对与本申请相关的各部件或模块进行了说明,但本申请不限于此。装置1400和1500还可以包括其他部件或者模块,关于这些部件或者模块的具体内容,可以参考相关技术。
此外,为了简单起见,图14和图15中仅示例性示出了各个部件或模块之间的连接关系或信号走向,但是本领域技术人员应该清楚的是,可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现;本申请实施并不对此进行限制。
根据本申请实施例的装置,保证了边链路非连续接收命令MAC CE发送的可靠性。
第十一方面的实施例
本申请实施例提供一种边链路传输的发送装置。
图16是本申请实施例的边链路传输的发送装置的一示意图。该装置例如可以是终端设备(例如前述的第一终端设备),也可以是配置于终端设备的某个或某些部件或者组件,与第五方面的实施例相同的内容不再赘述。
如图16所示,边链路传输的发送装置1600包括:
第一发送单元1601,其向所述第二终端设备发送边链路非连续接收命令(SL DRX command)的MAC CE,所述边链路非连续接收命令MAC CE具有被配置的或者预定义的优先级。
在一些实施例中,如图16所示,装置1600还包括:
第二发送单元1602,其向所述第二终端设备发送边链路控制信息(SCI),所述边链路控制信息指示所述边链路非连续接收命令MAC CE的优先级。
在一些实施例中,如图16所示,装置1600还包括:
决定单元1603,其使用所述被配置的或者预定义的优先级决定发送边链路传输或者发送上行传输。
在一些实施例中,在所述第一终端设备进行LCP过程中,所述边链路非连续接收命令MAC CE的优先级低于边链路业务信道数据的优先级。
在一些实施例中,如图16所示,装置1600还包括:
生成单元1604,当生成所述边链路非连续接收命令MAC CE时,生成单元1604生成一个MAC PDU。
值得注意的是,以上仅对与本申请相关的各部件或模块进行了说明,但本申请不限于此。装置1600还可以包括其他部件或者模块,关于这些部件或者模块的具体内容,可以参考相关技术。
此外,为了简单起见,图16中仅示例性示出了各个部件或模块之间的连接关系或信号走向,但是本领域技术人员应该清楚的是,可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现;本申请实施并不对此进行限制。
根据本申请实施例的装置,增强了边链路传输的可靠性。
第十二方面的实施例
本申请实施例提供一种边链路缓存状态报告的生成装置。
图17是本申请实施例的边链路缓存状态报告的生成装置的一示意图。该装置例如可以是终端设备(例如前述的第一终端设备),也可以是配置于终端设备的某个或某些部件或者组件,与第六方面的实施例相同的内容不再赘述。
如图17所示,边链路缓存状态报告的生成装置1700包括:生成单元1701和发送单元1702。
生成单元1701生成边链路缓存状态报告(SL-BSR),所述边链路缓存状态报告中的缓存大小域(buffer size filed)标识了以下至少之一:
在MAC PDU构建之后目标的逻辑信道组的所有逻辑信道的可用数据总量,所述MAC PDU包括边链路缓存状态报告MAC CE或者,所述MAC PDU为UL MAC PDU;
在MAC PDU构建时目标的逻辑信道组的所有逻辑信道的可用数据总量,所述MAC PDU包括边链路缓存状态报告的MAC CE或者,所述MAC PDU为UL MAC PDU;
在边链路缓存状态报告的MAC CE被生成时目标的逻辑信道组的所有逻辑信道的可用数据总量;
在边链路缓存状态报告的MAC CE被触发时目标的逻辑信道组的所有逻辑信道的可用数据总量;
在边链路的MAC PDU构建之后目标的逻辑信道组的所有逻辑信道的可用数据总量,其中,上行传输和边链路传输在时间上重叠并且所述第一终端设备具有同时进行上行传 输和边链路传输的能力,其中,在边链路LCP过程之后,会导致缓存大小域的值为零。
发送单元1702向网络设备发送所述边链路缓存状态报告。
值得注意的是,以上仅对与本申请相关的各部件或模块进行了说明,但本申请不限于此。装置1700还可以包括其他部件或者模块,关于这些部件或者模块的具体内容,可以参考相关技术。
此外,上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现;本申请实施并不对此进行限制。
根据本申请实施例的装置,有利于网络设备知道终端设备的边链路的缓存状态,从而进行适应性调度,以满足边链路业务的QoS要求。
第十三方面的实施例
本申请实施例还提供一种通信系统,与第一方面至第十二方面的实施例相同的内容不再赘述。
在一些实施例中,通信系统至少可以包括:第一终端设备和第二终端设备,所述第一终端设备和所述第二终端设备进行边链路传输,所述第二终端设备使用SL DRX。其中,第一终端设备作为发送设备被配置为实现第一方面至第六方面任一方面的实施例所述的方法;第二终端设备作为接收设备被配置为在SL DRX active time接收第一终端设备发送的边链路传输。
在一些实施例中,通信系统至少可以包括:第一终端设备、第二终端设备和网络设备,第一终端设备作为发送设备被配置为实现第一方面至第六方面任一方面的实施例所述的方法;第二终端设备作为接收设备被配置为在SL DRX active time接收第一终端设备发送的边链路传输;网络设备别配置为为第一终端设备分配边链路资源。
本申请实施例还提供一种终端设备。
图18是本申请实施例的终端设备的一示意图。如图18所示,该终端设备1800可以包括处理器1801和存储器1802;存储器1802存储有数据和程序,并耦合到处理器1802。值得注意的是,该图是示例性的;还可以使用其他类型的结构,来补充或代替该结构,以实现电信功能或其他功能。
例如,处理器1802可以被配置为执行程序而实现如第一方面至第六方面任一方面的实施例所述的方法。
如图18所示,该终端设备1800还可以包括:通信模块1803、输入单元1804、显 示器1805、电源1806。其中,上述部件的功能与现有技术类似,此处不再赘述。值得注意的是,终端设备1800也并不是必须要包括图18中所示的所有部件,上述部件并不是必需的;此外,终端设备1800还可以包括图18中没有示出的部件,可以参考现有技术。
本申请实施例还提供一种计算机程序,其中当在终端设备中执行所述程序时,所述程序使得所述终端设备执行第一方面至第六方面任一方面的实施例所述的方法。
本申请实施例还提供一种存储有计算机程序的存储介质,其中所述计算机程序使得终端设备执行第一方面至第六方面任一方面的实施例所述的方法。
本申请以上的装置和方法可以由硬件实现,也可以由硬件结合软件实现。本申请涉及这样的计算机可读程序,当该程序被逻辑部件所执行时,能够使该逻辑部件实现上文所述的装置或构成部件,或使该逻辑部件实现上文所述的各种方法或步骤。本申请还涉及用于存储以上程序的存储介质,如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本申请实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如,图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合,既可以对应于计算机程序流程的各个软件模块,亦可以对应于各个硬件模块。这些软件模块,可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息;或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中,也可以存储在可插入移动终端的存储卡中。例如,若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置,则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合,可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合,还可以实现为计算设备的组合,例如,DSP 和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本申请进行了描述,但本领域技术人员应该清楚,这些描述都是示例性的,并不是对本申请保护范围的限制。本领域技术人员可以根据本申请的精神和原理对本申请做出各种变型和修改,这些变型和修改也在本申请的范围内。
关于包括以上实施例的实施方式,还公开下述的附记:
1.一种边链路非连续接收命令(SL DRX command)的触发方法,应用于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述方法包括:
所述第一终端设备的MAC层在以下条件之一满足的情况下,触发边链路非连续接收命令:
一个目标(destination)或者源-目标对(a pair of source ID and destination ID)或者一个PC5 5G业务质量指示(PC5 5G QoS identifier,PQI)对应的逻辑信道没有数据待发送,或者在当前业务周期内没有数据待发送,或者在过去一段时间或一个计时器超时时没有数据待发送;
一个目标或者源-目标对没有MAC CE待发送,或者在当前业务周期内没有MAC CE待发送,或者在在过去一段时间或一个计时器超时时没有MAC CE待发送;
所述第一终端设备的上层指示所述第一终端设备的MAC层没有数据要发送或者在一段时间内没有数据要发送。
2.根据附记1所述的方法,其中,一个目标或者源-目标址对或者一个PQI对应的逻辑信道没有数据待发送是指:一个目标或者源-目标对或者一个PQI对应的逻辑信道的缓存大小为0。
3.根据附记1所述的方法,其中,所述当前业务周期包括以下至少之一:
边链路业务的周期;
边链路非连续接收的周期(SL DRX cycle);
边链路非连续接收的持续时间计时器(SL DRX on-duration timer)的计时周期;
边链路非连续接收的非激活计时器(SL DRX inactivity timer)的计时周期。
4.根据附记1所述的方法,其中,所述计时器包括以下至少之一:
网络设备配置的或预定义的计时器;
边链路非连续接收的持续时间计时器(SL DRX on-duration timer);
边链路非连续接收的非激活计时器(SL DRX inactivity timer)。
5.根据附记1所述的方法,其中,所述时间包括以下至少之一:
网络设备配置的或预定义的时间;
边链路业务的周期;
边链路非连续接收的周期(SL DRX cycle);
边链路非连续接收的持续时间计时器(SL DRX on-duration timer)的计时周期;
边链路非连续接收的非激活计时器(SL DRX inactivity timer)的计时周期。
6.根据附记1所述的方法,其中,所述上层为以下之一:车辆对所有(V2X)层,非接入层(NAS),无线资源控制(RRC)层。
7.根据附记1所述的方法,其中,所述方法还包括:
所述第一终端设备的MAC层在以下条件之一满足的情况下,取消边链路非连续接收命令:
对于所述边链路非连续接收命令被触发的目标或者源-目标对或者PQI,新数据到达所述目标或者源-目标对或者PQI对应的逻辑信道;
对于所述边链路非连续接收命令被触发的目标或者源-目标对,有其它MAC CE被触发;
所述第一终端设备的上层指示所述第一终端设备的MAC层将有数据到达;
所述边链路非连续接收命令的媒体接入控制控制单元(MAC CE)在边链路中被发送;
所述第一终端设备接收到所述第二终端设备发送的混合自动重传请求(HARQ)反馈;
所述第一终端设备的上层重新配置了非连续接收配置。
8.根据附记7所述的方法,其中,所述上层为以下之一:车辆对所有(V2X)层,非接入层(NAS),无线资源控制(RRC)层。
9.根据附记7所述的方法,其中,所述第一终端设备的上层重新配置了非连续接收配置包括:
针对所述边链路非连续接收命令被触发的目标或者源-目标对或者PQI,所述第一终端设备的上层重新配置了SL和/或DL非连续接收配置。
7a.一种边链路非连续接收命令(SL DRX command)的取消方法,应用于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边 链路非连续接收(SL DRX),其中,所述方法包括:
所述第一终端设备的MAC层在以下条件之一满足的情况下,取消边链路非连续接收命令:
对于所述边链路非连续接收命令被触发的目标或者源-目标对或者PQI,新数据到达所述目标或者源-目标对或者PQI对应的逻辑信道;
对于所述边链路非连续接收命令被触发的目标或者源-目标对,有其它MAC CE被触发;
所述第一终端设备的上层指示所述第一终端设备的MAC层将有数据到达;
所述边链路非连续接收命令的媒体接入控制控制单元(MAC CE)在边链路中被发送;
所述第一终端设备接收到所述第二终端设备发送的混合自动重传请求(HARQ)反馈;
所述第一终端设备的上层重新配置了非连续接收配置。
8a.根据附记7a所述的方法,其中,所述上层为以下之一:车辆对所有(V2X)层,非接入层(NAS),无线资源控制(RRC)层。
9a.根据附记7a所述的方法,其中,所述第一终端设备的上层重新配置了非连续接收配置包括:
针对所述边链路非连续接收命令被触发的目标或者源-目标对或者PQI,所述第一终端设备的上层重新配置了SL和/或DL非连续接收配置。
10.一种边链路非连续接收命令对应的调度请求的触发方法,应用于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述方法包括:
所述第一终端设备在触发了边链路非连续接收命令后,触发所述边链路非连续接收命令对应的第一调度请求。
11.根据附记10所述的方法,其中,所述第一终端设备在以下条件之一满足的情况下,触发所述边链路非连续接收命令对应的所述第一调度请求:
没有用于新传输的边链路资源;
用于新传输的边链路资源不能容纳边链路非连续接收命令MAC CE及其子头;
用于新传输的边链路资源不能容纳边链路非连续接收命令MAC CE的子头。
12.根据附记10所述的方法,其中,所述方法还包括:
所述第一终端设备在发送了所述边链路非连续接收命令后,触发所述边链路非连续接收命令对应的第二调度请求。
13.根据附记12所述的方法,其中,所述第一终端设备在以下条件之一满足的情况下,触发所述边链路非连续接收命令对应的所述第二调度请求:
用于新传输的边链路资源能够容纳边链路非连续接收命令MAC CE及其子头以及所有等待发送的数据;
用于新传输的边链路资源能够容纳边链路非连续接收命令MAC CE的子头以及所有等待发送的数据。
14.根据附记10或12所述的方法,其中,所述方法还包括:
所述第一终端设备接收网络设备发送的配置信息,所述配置信息包含至少一个SR配置;
所述第一终端设备使用所述至少一个SR配置中的至少一个SR配置发送所述边链路非连续接收命令对应的第一调度请求和/或第二调度请求。
15.根据附记14所述的方法,其中,所述配置信息包含于RRC信令中。
16.根据附记14所述的方法,其中,所述SR配置包括部分带宽(BWP)上的PUCCH资源。
17.根据附记14所述的方法,其中,所述至少一个SR配置为以下至少之一:
所述网络设备为边链路非连续接收命令MAC CE配置的SR配置;
所述网络设备为边链路逻辑信道配置的SR配置;
所述网络设备为边链路信道状态信息上报的MAC CE配置的SR配置;
所述网络设备为边链路或上行链路的逻辑信道或MAC CE配置的SR配置。
18.根据附记10所述的方法,其中,所述方法还包括:
当边链路非连续接收命令MAC CE被发送时,取消所述边链路非连续接收命令对应的所述第一调度请求。
19.一种资源池的选择方法,应用于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述方法包括:
如果边链路逻辑信道有数据待发送并且边链路非连续接收命令被触发,则所述第一终端设备基于所述边链路逻辑信道和所述边链路非连续接收命令的优先级,根据所述边链路逻辑信道的HARQ反馈属性或者根据所述边链路非连续接收命令的HARQ反馈属 性选择资源池。
20.根据附记19所述的方法,其中,如果所述边链路逻辑信道的优先级高于或等于所述边链路非连续接收命令的优先级,则所述第一终端设备在所述边链路逻辑信道的HARQ反馈属性被配置为使能(enabled)时,从网络设备配置的或预配置的资源池中选择被配置了PSFCH资源的资源池。
21.根据附记19所述的方法,其中,如果所述边链路非连续接收命令的优先级高于所述边链路逻辑信道的优先级,则所述第一终端设备在所述边链路非连续接收命令的HARQ反馈属性被配置为使能(enabled)时,从网络设备配置的或预配置的资源池中选择被配置了PSFCH资源的资源池。
22.一种逻辑信道选择方法,应用于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述方法还包括:
所述第一终端设备确定用于发送边链路数据的边链路资源;
所述第一终端设备在逻辑信道优先级处理(LCP)过程中选择目标,所述目标具有第一MAC CE和/或满足预定条件的第一逻辑信道中最高优先级的第二逻辑信道或第二MAC CE,所述第一MAC CE满足以下条件:
如果所述边链路资源没有被配置PSFCH,所述MAC CE的HARQ反馈属性被配置为去能(disabled)。
23.一种逻辑信道选择方法,应用于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述方法还包括:
所述第一终端设备确定用于发送边链路数据的边链路资源;
如果所述边链路资源被配置了PSFCH,并且,满足预定条件的最高优先级的逻辑信道或边链路非连续接收命令MAC CE对应的HARQ反馈属性被配置为enabled,则所述第一终端设备在LCP过程中选择HARQ反馈属性被配置为enabled的逻辑信道或边链路非连续接收命令MAC CE;
如果所述边链路资源被配置了PSFCH,并且,满足预定条件的最高优先级的逻辑信道或边链路非连续接收命令MAC CE对应的HARQ反馈属性被配置为disabled,则所述第一终端设备在LCP过程中选择HARQ反馈属性被配置为disabled的逻辑信道或边链路非连续接收命令MAC CE。
24.一种边链路传输的发送方法,应用于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述方法包括:
所述第一终端设备向所述第二终端设备发送边链路非连续接收命令MAC CE(SL DRX command MAC CE),所述边链路非连续接收命令MAC CE具有被配置的或者预定义的优先级。
25.根据附记24所述的方法,其中,所述方法还包括:
所述第一终端设备向所述第二终端设备发送边链路控制信息(SCI),所述边链路控制信息指示所述边链路非连续接收命令MAC CE的优先级。
26.根据附记24所述的方法,其中,所述方法还包括:
所述第一终端设备使用所述被配置的或者预定义的优先级决定发送边链路传输或者发送上行传输。
27.根据附记24所述的方法,其中,在所述第一终端设备进行LCP过程中,所述边链路非连续接收命令MAC CE的优先级低于边链路业务信道数据的优先级。
28.根据附记24所述的方法,其中,所述方法还包括:
当生成所述边链路非连续接收命令MAC CE时,所述第一终端设备生成一个MAC PDU。
29.一种边链路缓存状态报告的生成方法,应用于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,其中,所述方法包括:
所述第一终端设备生成边链路缓存状态报告(SL-BSR),所述边链路缓存状态报告中的缓存大小域(buffer size filed)标识了以下至少之一:
在MAC PDU构建之后目标的逻辑信道组的所有逻辑信道的可用数据总量,所述MAC PDU包括边链路缓存状态报告MAC CE或者,所述MAC PDU为UL MAC PDU;
在MAC PDU构建时目标的逻辑信道组的所有逻辑信道的可用数据总量,所述MAC PDU包括边链路缓存状态报告的MAC CE或者,所述MAC PDU为UL MAC PDU;
在边链路缓存状态报告的MAC CE被生成时目标的逻辑信道组的所有逻辑信道的可用数据总量;
在边链路缓存状态报告的MAC CE被触发时目标的逻辑信道组的所有逻辑信道的可用数据总量;
在边链路的MAC PDU构建之后地址的逻辑信道组的所有逻辑信道的可用数据总量, 其中,上行传输和边链路传输在时间上重叠并且所述第一终端设备具有同时进行上行传输和边链路传输的能力,其中,在边链路LCP过程之后,会导致缓存大小域的值为零;
所述第一终端设备向网络设备发送所述边链路缓存状态报告。
30.一种终端设备,包括存储器和处理器,所述存储器存储有计算机程序,所述处理器被配置为执行所述计算机程序而实现如附记1至29任一项所述的方法。
32.一种通信系统,包括第一终端设备和第二终端设备,所述第一终端设备和所述第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中:
所述第一终端设备被配置为执行附记1至29任一项所述的方法。
33.根据附记32所述的通信系统,其中,所述通信系统还包括网络设备,所述网络设备为所述第一终端设备分配边链路资源。

Claims (20)

  1. 一种边链路非连续接收命令(SL DRX command)的触发装置,配置于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述装置包括:
    触发单元,其在所述第一终端设备的MAC层在以下条件之一满足的情况下,触发边链路非连续接收命令:
    一个目标(destination)或者源-目标对(a pair of source ID and destination ID)或者一个PC5 5G业务质量指示(PC5 5G QoS identifier,PQI)对应的逻辑信道没有数据待发送,或者在当前业务周期内没有数据待发送,或者在过去一段时间或一个计时器超时时没有数据待发送;
    一个目标或者源-目标对没有MAC CE待发送,或者在当前业务周期内没有MAC CE待发送,或者在在过去一段时间或一个计时器超时时没有MAC CE待发送;
    所述第一终端设备的上层指示所述第一终端设备的MAC层没有数据要发送或者在一段时间内没有数据要发送。
  2. 根据权利要求1所述的装置,其中,一个目标或者源-目标址对或者一个PQI对应的逻辑信道没有数据待发送是指:一个目标或者源-目标对或者一个PQI对应的逻辑信道的缓存大小为0。
  3. 根据权利要求1所述的装置,其中,所述当前业务周期包括以下至少之一:
    边链路业务的周期;
    边链路非连续接收的周期(SL DRX cycle);
    边链路非连续接收的持续时间计时器(SL DRX on-duration timer)的计时周期;
    边链路非连续接收的非激活计时器(SL DRX inactivity timer)的计时周期。
  4. 根据权利要求1所述的装置,其中,所述计时器包括以下至少之一:
    网络设备配置的或预定义的计时器;
    边链路非连续接收的持续时间计时器(SL DRX on-duration timer);
    边链路非连续接收的非激活计时器(SL DRX inactivity timer)。
  5. 根据权利要求1所述的装置,其中,所述时间包括以下至少之一:
    网络设备配置的或预定义的时间;
    边链路业务的周期;
    边链路非连续接收的周期(SL DRX cycle);
    边链路非连续接收的持续时间计时器(SL DRX on-duration timer)的计时周期;
    边链路非连续接收的非激活计时器(SL DRX inactivity timer)的计时周期。
  6. 根据权利要求1所述的装置,其中,所述上层为以下之一:车辆对所有(V2X)层,非接入层(NAS),无线资源控制(RRC)层。
  7. 根据权利要求1所述的装置,其中,所述装置还包括:
    取消单元,其在所述第一终端设备的MAC层在以下条件之一满足的情况下,取消边链路非连续接收命令:
    对于所述边链路非连续接收命令被触发的目标或者源-目标对或者PQI,新数据到达所述目标或者源-目标对或者PQI对应的逻辑信道;
    对于所述边链路非连续接收命令被触发的目标或者源-目标对,有其它MAC CE被触发;
    所述第一终端设备的上层指示所述第一终端设备的MAC层将有数据到达;
    所述边链路非连续接收命令的媒体接入控制控制单元(MAC CE)在边链路中被发送;
    所述第一终端设备接收到所述第二终端设备发送的混合自动重传请求(HARQ)反馈;
    所述第一终端设备的上层重新配置了非连续接收配置。
  8. 根据权利要求7所述的装置,其中,所述上层为以下之一:车辆对所有(V2X)层,非接入层(NAS),无线资源控制(RRC)层。
  9. 根据权利要求7所述的装置,其中,所述第一终端设备的上层重新配置了非连续接收配置包括:
    针对所述边链路非连续接收命令被触发的目标或者源-目标对或者PQI,所述第一终端设备的上层重新配置了SL和/或DL非连续接收配置。
  10. 一种边链路非连续接收命令对应的调度请求的触发装置,配置于第一终端设备,所述第一终端设备与第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其中,所述装置包括:
    第一触发单元,其在所述第一终端设备触发了边链路非连续接收命令后,触发所述边链路非连续接收命令对应的第一调度请求。
  11. 根据权利要求10所述的装置,其中,所述第一触发单元在以下条件之一满足的 情况下,触发所述边链路非连续接收命令对应的所述第一调度请求:
    没有用于新传输的边链路资源;
    用于新传输的边链路资源不能容纳边链路非连续接收命令MAC CE及其子头;
    用于新传输的边链路资源不能容纳边链路非连续接收命令MAC CE的子头。
  12. 根据权利要求10所述的装置,其中,所述装置还包括:
    第二触发单元,其在所述第一终端设备发送了所述边链路非连续接收命令后,触发所述边链路非连续接收命令对应的第二调度请求。
  13. 根据权利要求12所述的装置,其中,所述第二触发单元在以下条件之一满足的情况下,触发所述边链路非连续接收命令对应的所述第二调度请求:
    用于新传输的边链路资源能够容纳边链路非连续接收命令MAC CE及其子头以及所有等待发送的数据;
    用于新传输的边链路资源能够容纳边链路非连续接收命令MAC CE的子头以及所有等待发送的数据。
  14. 根据权利要求10所述的装置,其中,所述装置还包括:
    接收单元,其接收网络设备发送的配置信息,所述配置信息包含至少一个SR配置;
    发送单元,其使用所述至少一个SR配置中的至少一个SR配置发送所述边链路非连续接收命令对应的第一调度请求和/或第二调度请求。
  15. 根据权利要求14所述的装置,其中,所述配置信息包含于RRC信令中。
  16. 根据权利要求14所述的装置,其中,所述SR配置包括部分带宽(BWP)上的PUCCH资源。
  17. 根据权利要求14所述的装置,其中,所述至少一个SR配置为以下至少之一:
    所述网络设备为边链路非连续接收命令MAC CE配置的SR配置;
    所述网络设备为边链路逻辑信道配置的SR配置;
    所述网络设备为边链路信道状态信息上报的MAC CE配置的SR配置;
    所述网络设备为边链路或上行链路的逻辑信道或MAC CE配置的SR配置。
  18. 根据权利要求10所述的装置,其中,所述装置还包括:
    取消单元,当边链路非连续接收命令MAC CE被发送时,所述取消单元取消所述边链路非连续接收命令对应的所述第一调度请求。
  19. 一种通信系统,包括第一终端设备和第二终端设备,所述第一终端设备和所述第二终端设备进行边链路传输,所述第二终端设备使用边链路非连续接收(SL DRX),其 中:
    所述第一终端设备被配置为执行执行以下处理的至少之一:
    处理一:
    所述第一终端设备的MAC层在以下条件之一满足的情况下,触发边链路非连续接收命令:
    一个目标(destination)或者源-目标对(a pair of source ID and destination ID)或者一个PC5 5G业务质量指示(PC5 5G QoS identifier,PQI)对应的逻辑信道没有数据待发送,或者在当前业务周期内没有数据待发送,或者在过去一段时间或一个计时器超时时没有数据待发送;
    一个目标或者源-目标对没有MAC CE待发送,或者在当前业务周期内没有MAC CE待发送,或者在在过去一段时间或一个计时器超时时没有MAC CE待发送;
    所述第一终端设备的上层指示所述第一终端设备的MAC层没有数据要发送或者在一段时间内没有数据要发送;
    处理二:
    所述第一终端设备的MAC层在以下条件之一满足的情况下,取消边链路非连续接收命令:
    对于所述边链路非连续接收命令被触发的目标或者源-目标对或者PQI,新数据到达所述目标或者源-目标对或者PQI对应的逻辑信道;
    对于所述边链路非连续接收命令被触发的目标或者源-目标对,有其它MAC CE被触发;
    所述第一终端设备的上层指示所述第一终端设备的MAC层将有数据到达;
    所述边链路非连续接收命令的媒体接入控制控制单元(MAC CE)在边链路中被发送;
    所述第一终端设备接收到所述第二终端设备发送的混合自动重传请求(HARQ)反馈;
    所述第一终端设备的上层重新配置了非连续接收配置;
    处理三:
    所述第一终端设备在触发了边链路非连续接收命令后,触发所述边链路非连续接收命令对应的第一调度请求;
    处理四:
    所述第一终端设备在发送了所述边链路非连续接收命令后,触发所述边链路非连续接收命令对应的第二调度请求;
    处理五:
    如果边链路逻辑信道有数据待发送并且边链路非连续接收命令被触发,则所述第一终端设备基于所述边链路逻辑信道和所述边链路非连续接收命令的优先级,根据所述边链路逻辑信道的HARQ反馈属性或者根据所述边链路非连续接收命令的HARQ反馈属性选择资源池;
    处理六:
    所述第一终端设备确定用于发送边链路数据的边链路资源;
    所述第一终端设备在逻辑信道优先级处理(LCP)过程中选择目标,所述目标具有第一MAC CE和/或满足预定条件的第一逻辑信道中最高优先级的第二逻辑信道或第二MAC CE,所述第一MAC CE满足以下条件:
    如果所述边链路资源没有被配置PSFCH,所述MAC CE的HARQ反馈属性被配置为去能(disabled);
    处理七:
    所述第一终端设备确定用于发送边链路数据的边链路资源;
    如果所述边链路资源被配置了PSFCH,并且,满足预定条件的最高优先级的逻辑信道或边链路非连续接收命令MAC CE对应的HARQ反馈属性被配置为enabled,则所述第一终端设备在LCP过程中选择HARQ反馈属性被配置为enabled的逻辑信道或边链路非连续接收命令MAC CE;
    如果所述边链路资源被配置了PSFCH,并且,满足预定条件的最高优先级的逻辑信道或边链路非连续接收命令MAC CE对应的HARQ反馈属性被配置为disabled,则所述第一终端设备在LCP过程中选择HARQ反馈属性被配置为disabled的逻辑信道或边链路非连续接收命令MAC CE;
    处理八:
    所述第一终端设备向所述第二终端设备发送边链路非连续接收命令MAC CE(SL DRX command MAC CE),所述边链路非连续接收命令MAC CE具有被配置的或者预定义的优先级;
    处理九:
    所述第一终端设备生成边链路缓存状态报告(SL-BSR),所述边链路缓存状态报告 中的缓存大小域(buffer size filed)标识了以下至少之一:
    在MAC PDU构建之后目标的逻辑信道组的所有逻辑信道的可用数据总量,所述MAC PDU包括边链路缓存状态报告MAC CE或者,所述MAC PDU为UL MAC PDU;
    在MAC PDU构建时目标的逻辑信道组的所有逻辑信道的可用数据总量,所述MAC PDU包括边链路缓存状态报告的MAC CE或者,所述MAC PDU为UL MAC PDU;
    在边链路缓存状态报告的MAC CE被生成时目标的逻辑信道组的所有逻辑信道的可用数据总量;
    在边链路缓存状态报告的MAC CE被触发时目标的逻辑信道组的所有逻辑信道的可用数据总量;
    在边链路的MAC PDU构建之后地址的逻辑信道组的所有逻辑信道的可用数据总量,其中,上行传输和边链路传输在时间上重叠并且所述第一终端设备具有同时进行上行传输和边链路传输的能力,其中,在边链路LCP过程之后,会导致缓存大小域的值为零;
    所述第一终端设备向网络设备发送所述边链路缓存状态报告。
  20. 根据权利要求19所述的通信系统,其中,所述通信系统还包括网络设备,所述网络设备为所述第一终端设备分配边链路资源。
PCT/CN2021/084768 2021-03-31 2021-03-31 边链路非连续接收命令的触发方法、装置和系统 WO2022205239A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11778605B2 (en) * 2020-10-22 2023-10-03 Lg Electronics Inc. Method and device for transmitting/receiving inter-UE coordination message in NR V2X

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111556590A (zh) * 2020-04-13 2020-08-18 中国信息通信研究院 一种边链路非连续接收方法
CN111800893A (zh) * 2019-08-22 2020-10-20 维沃移动通信有限公司 边链路非连续发送、接收方法与装置及终端设备
WO2021022508A1 (zh) * 2019-08-07 2021-02-11 富士通株式会社 边链路调度请求的触发方法、装置和系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021022508A1 (zh) * 2019-08-07 2021-02-11 富士通株式会社 边链路调度请求的触发方法、装置和系统
CN111800893A (zh) * 2019-08-22 2020-10-20 维沃移动通信有限公司 边链路非连续发送、接收方法与装置及终端设备
CN111556590A (zh) * 2020-04-13 2020-08-18 中国信息通信研究院 一种边链路非连续接收方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ASUSTEK: "Correction on DRX with bundle transmission of configured uplink grant", 3GPP DRAFT; R2-2007727, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. 20200817 - 20200828, 7 August 2020 (2020-08-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051912354 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11778605B2 (en) * 2020-10-22 2023-10-03 Lg Electronics Inc. Method and device for transmitting/receiving inter-UE coordination message in NR V2X

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