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 PDFInfo
- 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
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- side link
- terminal device
- discontinuous reception
- mac
- reception command
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 144
- 230000005540 biological transmission Effects 0.000 claims abstract description 123
- 230000001960 triggered effect Effects 0.000 claims description 42
- 238000004891 communication Methods 0.000 claims description 29
- 230000011664 signaling Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 5
- 238000012913 prioritisation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 37
- 230000015654 memory Effects 0.000 description 17
- 238000012986 modification Methods 0.000 description 11
- 230000004048 modification Effects 0.000 description 11
- 238000004590 computer program Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000010187 selection method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000013468 resource allocation Methods 0.000 description 2
- 102100032489 Heat shock 70 kDa protein 13 Human genes 0.000 description 1
- 101001016638 Homo sapiens Heat shock 70 kDa protein 13 Proteins 0.000 description 1
- 101000720079 Stichodactyla helianthus DELTA-stichotoxin-She4a Proteins 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/23—Manipulation of direct-mode connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control 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.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (20)
- 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。
- 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。
- 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。
- 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)。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2021/084768 WO2022205239A1 (zh) | 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 |
EP21933899.3A EP4319466A1 (en) | 2021-03-31 | 2021-03-31 | Sidelink discontinuous reception command triggering method, apparatus, and system |
JP2023558264A JP2024511608A (ja) | 2021-03-31 | 2021-03-31 | サイドリンク不連続受信命令のトリガー方法、装置及びシステム |
KR1020237032596A KR20230146656A (ko) | 2021-03-31 | 2021-03-31 | 사이드링크 불연속 수신 커맨드 트리거 방법, 장치, 및 시스템 |
CN202180094441.0A CN116941323A (zh) | 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 |
US18/370,639 US20240015840A1 (en) | 2021-03-31 | 2023-09-20 | Method and apparatus for triggering a sidelink discontinuous reception command and system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2021/084768 WO2022205239A1 (zh) | 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 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/370,639 Continuation US20240015840A1 (en) | 2021-03-31 | 2023-09-20 | Method and apparatus for triggering a sidelink discontinuous reception command and system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022205239A1 true WO2022205239A1 (zh) | 2022-10-06 |
Family
ID=83457748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2021/084768 WO2022205239A1 (zh) | 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 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20240015840A1 (zh) |
EP (1) | EP4319466A1 (zh) |
JP (1) | JP2024511608A (zh) |
KR (1) | KR20230146656A (zh) |
CN (1) | CN116941323A (zh) |
WO (1) | WO2022205239A1 (zh) |
Cited By (1)
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)
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 |
-
2021
- 2021-03-31 JP JP2023558264A patent/JP2024511608A/ja active Pending
- 2021-03-31 KR KR1020237032596A patent/KR20230146656A/ko active Search and Examination
- 2021-03-31 CN CN202180094441.0A patent/CN116941323A/zh active Pending
- 2021-03-31 WO PCT/CN2021/084768 patent/WO2022205239A1/zh active Application Filing
- 2021-03-31 EP EP21933899.3A patent/EP4319466A1/en active Pending
-
2023
- 2023-09-20 US US18/370,639 patent/US20240015840A1/en active Pending
Patent Citations (3)
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)
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)
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 |
Also Published As
Publication number | Publication date |
---|---|
JP2024511608A (ja) | 2024-03-14 |
EP4319466A1 (en) | 2024-02-07 |
CN116941323A (zh) | 2023-10-24 |
US20240015840A1 (en) | 2024-01-11 |
KR20230146656A (ko) | 2023-10-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10051682B2 (en) | Deterministic RRC connections | |
US10412780B2 (en) | Adapting discontinuous reception cycles using scheduling requests | |
JP5944592B2 (ja) | ワイヤレス機器、無線ネットワークノード、および機器間通信での不連続受信のための方法 | |
JP6054462B2 (ja) | ネットワーク負荷に基づくアプリケーションデータの延期 | |
US11937324B2 (en) | Data transmitting/receiving apparatuses and methods and communication system | |
US10375646B2 (en) | Coordination between application and baseband layer operation | |
US10623981B2 (en) | Information transmission method, apparatus, and system | |
US20140241227A1 (en) | Discontinuous Rreception | |
US20170290021A1 (en) | Method for multi-rat scheduling and apparatus therefor in system in which heterogeneous wireless communication technologies are utilized | |
WO2021022508A1 (zh) | 边链路调度请求的触发方法、装置和系统 | |
US20220022219A1 (en) | Method and apparatus for scheduling uplink transmission | |
US20240015840A1 (en) | Method and apparatus for triggering a sidelink discontinuous reception command and system | |
WO2022151287A1 (zh) | 资源选择方法、装置和系统 | |
WO2022205240A1 (zh) | 数据发送方法、装置和系统 | |
WO2021138762A1 (zh) | 通知发送时间信息的方法以及装置 | |
CN113382379B (zh) | 无线通信方法和通信装置 | |
WO2021203390A1 (zh) | 随机接入方法、资源配置方法以及装置 | |
WO2021232379A1 (zh) | 调度请求的处理方法、装置和系统 | |
EP4274295A1 (en) | Sidelink discontinuous reception configuration method and apparatus, device, and readable storage medium | |
CA3211339A1 (en) | Method and apparatus for sidelink communication | |
CN116830673A (zh) | 侧行链路重传资源处理方法、终端设备和网络设备 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21933899 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202180094441.0 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2023558264 Country of ref document: JP |
|
ENP | Entry into the national phase |
Ref document number: 20237032596 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020237032596 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2021933899 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2021933899 Country of ref document: EP Effective date: 20231031 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |