WO2020156185A1 - Procédé et appareil de traitement de demande de planification - Google Patents

Procédé et appareil de traitement de demande de planification Download PDF

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Publication number
WO2020156185A1
WO2020156185A1 PCT/CN2020/072308 CN2020072308W WO2020156185A1 WO 2020156185 A1 WO2020156185 A1 WO 2020156185A1 CN 2020072308 W CN2020072308 W CN 2020072308W WO 2020156185 A1 WO2020156185 A1 WO 2020156185A1
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WO
WIPO (PCT)
Prior art keywords
mode
suspended
terminal
scheduling
side link
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Application number
PCT/CN2020/072308
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English (en)
Chinese (zh)
Inventor
余唱
常俊仁
肖潇
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华为技术有限公司
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Publication of WO2020156185A1 publication Critical patent/WO2020156185A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • 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
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a method and device for processing scheduling requests.
  • V2X communication is a wireless communication technology in which terminals (for example, vehicles) are 100% interconnected with the outside world for data transmission and information exchange. Through V2X communication, the vehicle can exchange V2X messages with other users around it, obtain road condition information in time or receive information services related to vehicle driving safety, assist vehicle drivers in predicting hazards and corresponding operations, and avoid accidents as much as possible.
  • the terminal can use the scheduling mode or the autonomous mode for V2X communication.
  • the scheduling mode when the terminal needs to transmit data on the side link (Sidelink), it needs to send a Buffer Status Report (BSR) on the Sidelink to the base station through uplink resources to request the Sidelink resources scheduled by the base station. If the uplink resource of the BSR is not reported at this time, the terminal needs to trigger a scheduling request (Scheduling Request, SR), and the triggered SR is in a suspended state (the SR is in a suspended state before being cancelled).
  • the terminal can independently select the side link resources, and it is not necessary to send the BSR to the terminal. Therefore, the terminal does not need to report the SR to the base station.
  • the terminal does not know whether it is necessary to retain the suspended SR.
  • the embodiments of the present application provide a scheduling request processing method and device to reduce the time delay of resource scheduling.
  • an embodiment of the present application provides a scheduling request processing method, including: switching the operating mode of the first side uplink service of the terminal from the scheduling mode to the first mode.
  • the terminal cancels one or more suspended scheduling requests SR of the first side uplink service in the scheduling mode.
  • the first mode includes: dispatch and autonomous joint mode or autonomous mode.
  • the embodiment of the present application provides a scheduling request processing method.
  • the terminal cancels the first side uplink service with one or more pending services. SR. Since the working mode of the first side link service has been switched, that is, when the working mode of the side link service changes, only one or more suspensions of the first side link service whose working mode is switched are cancelled SR. This is because in the scheduling and autonomous joint mode or the autonomous mode, the terminal can autonomously select the side link resources to transmit the first side link service. Therefore, by canceling the one or more suspended SRs of the first side uplink service, it is possible to prevent the terminal from requesting scheduled side link resources for the first side uplink service.
  • the other side link services in the terminal except the first side link service also have at least one suspended SR, at least one of the remaining side link services whose working mode has not been switched can be reserved. SR. This can avoid re-triggering the BSR, and then triggering the SR to re-request the base station to allocate Sidelink resources to increase the scheduling delay.
  • the side link service provided by the embodiment of the present application includes any one or more of the following: side link quality of service flow, side link logical channel LCH, side link data wireless Carry DRB, side-link logical channel group LCG, side-link service target identifier, and side-link packet data unit session.
  • the method provided in the embodiment of the present application further includes: the terminal maintains the first SR configuration of the cancelled suspended SR in the scheduling mode. That is, even if the suspended SR is cancelled, the terminal can retain the first SR configuration of the cancelled suspended SR in the scheduling mode.
  • the method provided in the embodiment of the present application further includes: the terminal releases the first SR configuration of the cancelled suspended SR in the scheduling mode. That is, if a suspended SR is cancelled, the terminal releases the first SR configuration of the suspended SR.
  • the method provided in the embodiment of the present application further includes: the terminal modifies the first configuration of the canceled suspended SR in the scheduling mode to the second SR configuration, and the second SR The configuration is the SR configuration of the cancelled suspended SR in the first mode.
  • the method provided in the embodiment of the present application further includes: if the working mode of the second side uplink service of the terminal is the scheduling mode, the terminal reserves the suspended status corresponding to the second side uplink service. SR. In this way, for the second side uplink service whose working mode has not changed, the suspended SR corresponding to the second side uplink service can be retained, so as to avoid re-triggering the BSR, and then trigger the SR to request the base station allocation again The scheduling delay caused by sidelink resources increases.
  • the terminal canceling one or more suspended SRs includes: the terminal cancels or deletes a buffer status report BSR that triggers one or more suspended SRs.
  • an embodiment of the present application provides a scheduling request processing method, including: switching the working mode of the side link service of the terminal from the first mode to the second mode, wherein in the first mode, the terminal has one Or multiple pending scheduling requests SR.
  • the terminal cancels or reserves the first suspended SR corresponding to the side link service in the one or more suspended SRs according to a preset rule.
  • the preset rule includes any one or more of the following information: the buffer state of the terminal, the parameters of the side link channel, and the working mode of the side link service.
  • the embodiment of the present application provides a scheduling request processing method.
  • the terminal switches from the first mode to the second mode by determining the working mode of the side link service. That is, when the working mode of the side link service is switched, the terminal evaluates whether it is necessary to retain the first suspended SR in the second mode according to any one or more of the preset rules. If any one or more of the preset rules indicate that the side link service can be transmitted using the side link resources independently selected by the terminal without requesting the base station for scheduled side link resources, the side link can be cancelled Suspended SR for road services to avoid requesting the base station to report the uplink resources of the BSR.
  • any one or more of the preset rules indicate that the side link service needs to use the side link resource transmission scheduled by the base station, it is necessary to reserve the suspended SR. In the case of retaining the suspended SR, it is possible to avoid re-triggering the BSR, and then trigger the SR to re-request the base station to allocate Sidelink resources to increase the scheduling delay.
  • the terminal cancels or reserves the first suspended SR corresponding to the sidelink service in the one or more suspended SRs according to preset rules, including: the buffer status is greater than the first suspended SR. Threshold, the terminal reserves the first suspended SR. If the buffer status is greater than the first threshold, it indicates that the side link service needs to use the scheduled side link resources allocated by the base station. By reserving the first suspended SR, the terminal can request to report the uplink resources of the BSR through the first suspended SR, and then request the base station to allocate sidelink resources for transmitting sidelink services.
  • the terminal cancels or reserves the first suspended SR corresponding to the sidelink service in one or more suspended SRs according to a preset rule, including: the buffer status is less than or equal to The second threshold, the terminal cancels the first suspended SR.
  • the buffer status is less than or equal to the second threshold, it indicates that when the working mode is switched, the terminal can use the independently selected side link resource to transmit the side link service. Therefore, there is no need to request the base station to report the uplink resources of the BSR.
  • the cache state in the embodiment of the present application is the cache state of the side link.
  • the terminal cancels or reserves the first suspended SR corresponding to the side link service in one or more suspended SRs according to preset rules, including: the parameters of the side link channel Above the third threshold, the terminal retains the first suspended SR. If the parameter of the side link channel is higher than the third threshold, it indicates that when switching to autonomous mode or scheduling and autonomous mode, the side link resources that the terminal can independently select are congested, and the scheduled side link resources allocated by the base station are still needed , It is necessary to keep the suspended SR.
  • the terminal cancels or reserves the first suspended SR corresponding to the side link service in one or more suspended SRs according to preset rules, including: the parameters of the side link channel If it is lower than or equal to the fourth threshold, the terminal cancels the first suspended SR. If the parameter of the side link channel is lower than or equal to the fourth threshold, it indicates that when switching to autonomous mode or scheduling and autonomous mode, the terminal can independently select side link resources without requesting resources from the base station, so the suspension can be cancelled SR.
  • the first mode includes: a scheduling mode
  • the second mode includes: an autonomous mode, or a scheduling and autonomous joint mode.
  • the terminal cancels or reserves the first suspended SR corresponding to the side link service in one or more suspended SRs according to preset rules, including: the work of the side link service
  • the mode is switched from the first mode to the second mode, and the terminal performs any one of the following actions: If the working mode of the side link service is switched from the scheduling mode to the autonomous mode, the terminal cancels the first suspended SR. Since in the autonomous mode, the terminal can use the independently selected side-link resource to transmit the side-link service, the first suspended SR can be cancelled. This avoids requesting the base station for uplink resources for reporting the BSR.
  • the terminal cancels one or more suspensions.
  • the terminal stops the SR prohibit timer in the same SR configuration.
  • the terminal stops the SR prohibition timer of any one of the SR configurations to which any one SR belongs.
  • the SR prohibition timer is to prevent frequent sending of pending SRs. Since the suspended SR has been cancelled, the SR prohibit timer can be stopped.
  • the terminal cancels or reserves the first suspended SR corresponding to the side link service in one or more suspended SRs according to preset rules, including: the work of the side link service
  • the mode is switched from the first mode to the second mode, and the terminal cancels the first suspended SR.
  • the first mode is the dispatch and autonomous joint mode
  • the second mode is the autonomous mode. This is because when the working mode is switched to the autonomous mode, the terminal can send side-link services on the side-link resources independently selected, so the first suspended SR can be directly cancelled.
  • the terminal cancels or reserves the first suspended SR corresponding to the side link service in one or more suspended SRs according to preset rules, including: the terminal fails to report the first suspended SR. In the case of the transmission timing of the suspended SR, the terminal retains the first suspended SR or cancels the first suspended SR. When the terminal has reported the first suspended SR, but has not reached the maximum number of SR reports, the terminal cancels the transmission of the first suspended SR, or the terminal retains the first suspended SR and follows the first suspended SR The SR configuration in the second mode reports the first suspended SR again. Among them, the second mode is dispatch and autonomous joint mode.
  • one or more suspended SRs are triggered by the side link buffer status report, and one or more suspended SRs have the first SR configuration in the first mode.
  • the method provided in the embodiment further includes: switching the working mode of the side link service from the first mode to the scheduling and autonomous joint mode, the terminal cancels at least one suspended SR, the terminal uses the second SR configuration, and the second SR is configured as the side SR configuration of uplink service in dispatching and autonomous joint mode.
  • the working mode of the side link service is switched from the first mode to the scheduling and autonomous joint mode
  • the terminal maintains at least one suspended SR
  • the terminal releases the first SR configuration and uses the second SR configuration
  • the second SR configuration is the side SR configuration of uplink service in dispatching and autonomous joint mode.
  • the method provided in the embodiment of the present application further includes: the terminal maintains the first SR configuration of the suspended SR that is cancelled.
  • the first SR configuration is the SR configuration of the suspended SR that is cancelled in the scheduling mode.
  • the terminal releases the first SR configuration of the suspended SR that is cancelled.
  • the terminal modifies the first SR configuration of the suspended SR that is cancelled to the second SR configuration.
  • the second SR configuration is the SR configuration of the suspended SR that is cancelled in the second mode.
  • the method provided in the embodiment of the present application further includes: the terminal receives the first message from the network device.
  • the first message includes any one or more of the first threshold, the second threshold, the third threshold, and the fourth threshold.
  • any one or more of the first threshold, the second threshold, the third threshold, and the fourth threshold in the embodiment of the present application are pre-stored in the terminal.
  • the side link service includes any one or more of the following: side link quality of service flow, side link logical channel LCH, side link data radio bearer DRB, side link Logical channel group LCG, side link service target identification, side link packet data unit session.
  • an embodiment of the present application provides an apparatus for processing a dispatch request.
  • the apparatus for processing a dispatch request may be a terminal or a chip in the terminal.
  • the device may include a processing unit.
  • the processing unit may be a processor.
  • the terminal may also include a transceiver unit and a storage unit. Among them, the transceiver unit can be a transceiver.
  • the storage unit may be a memory. The storage unit is used to store instructions, and the processing unit executes the instructions stored by the storage unit, so that the terminal implements the scheduling request processing method described in the first aspect or any one of the possible implementations of the first aspect.
  • the processing unit may be a processor, and the transceiver unit may be a communication interface, such as an input/output interface, a pin, or a circuit.
  • the processing unit executes the instructions stored in the storage unit, so that the terminal implements the scheduling request processing method described in the first aspect or any one of the possible implementations of the first aspect, and the storage unit may be in the chip
  • the storage unit (for example, a register, a cache, etc.) can also be a storage unit (for example, a read-only memory, a random access memory, etc.) located outside the chip in the terminal.
  • an embodiment of the present application provides an apparatus for processing a dispatch request.
  • the apparatus for processing a dispatch request may be a terminal or a chip in the terminal.
  • the device may include a processing unit.
  • the processing unit may be a processor.
  • the terminal may also include a transceiver unit and a storage unit. Among them, the transceiver unit can be a transceiver.
  • the storage unit may be a memory. The storage unit is used to store instructions, and the processing unit executes the instructions stored in the storage unit, so that the terminal implements the scheduling request processing method described in the second aspect or any one of the possible implementations of the second aspect.
  • the processing unit may be a processor, and the transceiver unit may be a communication interface, such as an input/output interface, a pin, or a circuit.
  • the processing unit executes the instructions stored in the storage unit, so that the terminal implements the scheduling request processing method described in the second aspect or any one of the possible implementations of the second aspect.
  • the storage unit may be in the chip
  • the storage unit (for example, a register, a cache, etc.) can also be a storage unit (for example, a read-only memory, a random access memory, etc.) located outside the chip in the terminal.
  • the embodiments of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program or instruction.
  • the computer program or instruction When the computer program or instruction is run on a computer, the computer executes the steps as described in the first aspect to the first aspect.
  • the scheduling request processing method described in any one of the possible implementations on the one hand.
  • the embodiments of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program or instruction.
  • the computer program or instruction When the computer program or instruction is run on a computer, the computer executes the steps from the second aspect to the first aspect.
  • embodiments of the present application provide a computer program product including instructions, which when the instructions run on a computer, cause the computer to execute a scheduling request described in the first aspect or various possible implementations of the first aspect Approach.
  • this application provides a computer program product including instructions, which when the instructions run on a computer, cause the computer to execute the scheduling request processing method described in the second aspect or various possible implementations of the second aspect .
  • an embodiment of the present application provides a communication system.
  • the communication system includes the terminal described in the third aspect and various possible implementation manners.
  • an embodiment of the present application provides a communication system, and the communication system includes: the fourth aspect and the terminal described in various possible implementation manners of the fourth aspect.
  • an embodiment of the present application provides an apparatus for processing a dispatch request.
  • the apparatus for processing a dispatch request includes a processor and a storage medium.
  • the storage medium stores instructions. When the instructions are executed by the processor, the The scheduling request processing method described in the first aspect or various possible implementation manners of the first aspect.
  • an embodiment of the present application provides a scheduling request processing device, the scheduling request processing device includes a processor and a storage medium, the storage medium stores instructions, and when the instructions are executed by the processor, the implementation is as follows: The scheduling request processing method described in the second aspect or various possible implementation manners of the second aspect.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of this application.
  • FIG. 2 is a first structural diagram of a base station provided by an embodiment of this application.
  • FIG. 3 is a second structural diagram of a base station provided by an embodiment of this application.
  • FIG. 4 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 5 is a first flowchart of a method for processing a dispatch request according to an embodiment of the application
  • FIG. 6 is a second schematic flowchart of a scheduling request processing method provided by an embodiment of this application.
  • FIG. 7 is a third flowchart of a method for processing a dispatch request according to an embodiment of the application.
  • FIG. 8 is a fourth flowchart of a method for processing a dispatch request according to an embodiment of this application.
  • FIG. 9 is a fifth schematic flowchart of a dispatch request processing method provided by an embodiment of this application.
  • FIG. 10 is a sixth flowchart of a method for processing a dispatch request according to an embodiment of this application.
  • FIG. 11 is a seventh flowchart of a method for processing a dispatch request according to an embodiment of this application.
  • FIG. 12 is an eighth flowchart of a method for processing a dispatch request according to an embodiment of this application.
  • FIG. 13 is a schematic diagram of a processing method for an SR prohibit timer provided by an embodiment of the application.
  • FIG. 14 is a ninth flowchart of a scheduling request processing method provided by an embodiment of the application.
  • FIG. 15 is a tenth flowchart of a method for processing a dispatch request according to an embodiment of this application.
  • 16 is a schematic eleventh flowchart of a scheduling request processing method provided by an embodiment of this application.
  • FIG. 17 is a schematic structural diagram of a scheduling request processing apparatus provided by an embodiment of this application.
  • FIG. 18 is a schematic structural diagram of another scheduling request processing apparatus provided by an embodiment of the application.
  • FIG. 19 is a schematic structural diagram of a chip provided by an embodiment of the application.
  • words such as “first” and “second” are used to distinguish the same items or similar items that have substantially the same function and effect.
  • the first threshold and the second threshold are only for distinguishing different thresholds, and the sequence of them is not limited.
  • the words “first”, “second” and the like do not limit the quantity and execution order, and the words “first” and “second” do not limit the difference.
  • LTE long-term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • PLMN public land mobile network
  • D2D device-to-device
  • M2M machine to machine
  • future 5G communication systems such as: long-term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) ) System, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, public land mobile network (PLMN) system, device-to-device (device to device, D2D) network system or machine to machine (machine to machine, M2M) network system and future 5G communication systems.
  • LTE long-term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • PLMN public land
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are in an "or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • Sidelink refers to: defined for direct communication between the terminal and the terminal. That is, the link between the terminal and the terminal for direct communication without forwarding through network equipment.
  • Sidelink resources refer to the resources used by terminal 1 to transmit Sidelink information to terminal 2 on the side link.
  • Sidelink information refers to: user data or control information transmitted by any two terminals on the side link.
  • Fig. 1 shows a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • the communication system includes: one or more network devices (such as the network device 10 shown in FIG. 1), and one or more terminals (such as the terminal 20 and the terminal 30 shown in FIG. 1).
  • the terminal 20 communicates with the network device 10, and the terminal 20 communicates with the terminal 30.
  • the terminal 30 can also communicate with the network device 10.
  • the communication system shown in FIG. 1 may also include a core network.
  • the network device 10 can be connected to the core network.
  • the core network may be a 4G core network (for example, Evolved Packet Core (EPC)) or a 5G core network (5G Core, 5GC), or a core network in various future communication systems.
  • EPC Evolved Packet Core
  • 5G Core 5G Core
  • the network device 10 may be an evolved Node B (eNB or eNodeB) in a 4G system.
  • the terminal 20 is a terminal that can perform information transmission with the eNB.
  • the eNB accesses the EPC network through the S1 interface.
  • the network device 10 may be the next generation node B (gNB) in the NR system, and the terminal 20 is a terminal that can perform information transmission with the gNB.
  • gNB connects to 5GC through NG interface.
  • the network device 10 may also be a 3rd generation partnership project (3rd generation partnership project, 3GPP) protocol base station, or may be a non-3GPP protocol base station.
  • 3rd generation partnership project 3rd generation partnership project, 3GPP
  • 3GPP 3rd generation partnership project
  • the first transmission link may be a Uu link.
  • the second transmission link may be a side link.
  • the terminal 20 and the terminal 30 can transmit V2X services to each other on Sidelink, which can also be referred to as Sidelink information.
  • the terminal 20 may transmit an uplink (Uplink, UL) Uu service to the network device 10 on the Uu link, and may also receive a downlink (Downlink, DL) Uu service sent by the network device 10 on the Uu link.
  • Uplink, UL uplink
  • Downlink Downlink
  • the terminal 20 receives the scheduled side link resources allocated by the network device 10 to the terminal 20 on the Uu link. Or the terminal 20 requests the network device 10 to send the uplink resource of the buffer status report on the Uu link. Or the terminal 20 receives the buffer status threshold allocated by the network device 10 for each side link service of the terminal 20 on the Uu link.
  • the direct communication interface between the terminal 20 and the terminal 30 may be the interface 1.
  • the interface 1 can be called a PC5 interface, and uses a dedicated frequency band (such as 5.9 GHz) for the Internet of Vehicles.
  • the interface between the terminal 20 and the network device 10 may be referred to as interface 2 (for example, Uu interface), and adopts a cellular network frequency band (for example, 1.8 GHz).
  • interface 1 and interface 2 are only examples, and the embodiment of this application does not limit the names of interface 1 and interface 2.
  • the terminal 20 is a device with wireless communication function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted. It can also be deployed on the water (such as ships, etc.). It can also be deployed in the air (for example, on airplanes, balloons, and satellites).
  • the terminal is also called user equipment (UE), mobile station (MS), mobile terminal (mobile terminal, MT), and terminal equipment, etc., which provide users with voice and/or data connectivity. equipment.
  • terminals include handheld devices and vehicle-mounted devices with wireless connection functions.
  • the terminal can be: mobile phone (mobile phone), tablet computer, notebook computer, palm computer, mobile internet device (MID), wearable device (such as smart watch, smart bracelet, pedometer, etc.), In-vehicle equipment (for example, automobiles, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.), virtual reality (VR) equipment, augmented reality (AR) equipment, industrial control (industrial control) Wireless terminals, smart home equipment (for example, refrigerators, TVs, air conditioners, electric meters, etc.), smart robots, workshop equipment, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart The wireless terminal in the smart grid, the wireless terminal in the transportation safety, the wireless terminal in the smart city, or the wireless terminal in the smart home, and the flying equipment (for example, smart Robots, hot air balloons, drones, airplanes, etc.
  • MID mobile internet device
  • wearable device such as smart watch, smart bracelet, pedometer, etc.
  • In-vehicle equipment for example, automobiles,
  • the terminal device is a terminal device that often works on the ground, such as a vehicle-mounted device.
  • chips deployed in the above devices such as System-On-a-Chip (SOC), baseband chips, etc., or other chips with communication functions may also be referred to as terminals.
  • the terminal may be a vehicle with corresponding communication function, or a vehicle-mounted communication device, or other embedded communication device, or a user-held communication device, including a mobile phone, a tablet computer, and the like.
  • the terminal may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be implemented without relying on smartphones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device 10 is an entity that can be used in conjunction with the terminal 20 to transmit or receive signals.
  • it can be an access point (Access Point, AP) in WLAN, an evolved Node B (eNB, or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device And the network equipment in the future 5G network or the network equipment in the future evolved PLMN network.
  • the network device provides services for the cell, and the terminal communicates with the network device through the transmission resources (for example, time domain resources, or frequency domain resources, or time-frequency resources) used by the cell.
  • the cell may be a cell corresponding to a network device (e.g. a base station).
  • the cell may belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here may include: metro cell, micro cell ( Micro cells, pico cells, femto cells, etc., these small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the future access network can be implemented using cloud radio access network (cloud radio access network, C-RAN) architecture
  • cloud radio access network C-RAN
  • C-RAN cloud radio access network
  • one possible way is to divide the protocol stack architecture and functions of traditional base stations into two parts, one part is called centralized The central unit (CU), and the other part is called the distributed unit (DU), and the actual deployment of CU and DU is more flexible.
  • the CU parts of multiple base stations are integrated together to form a larger function entity.
  • FIG. 2 it is a schematic diagram of a network architecture provided by an embodiment of the application.
  • the network architecture includes core network (Core Network, CN) equipment and access network (taking Radio Access Network (RAN) as an example) equipment.
  • the RAN equipment includes a baseband device and a radio frequency device.
  • the baseband device can be implemented by one node or by multiple nodes.
  • the radio frequency device can be implemented separately from the baseband device, or integrated into the baseband device, or partially remote Integrated in the baseband device.
  • the RAN equipment eNB
  • the radio frequency device can be arranged remotely relative to the baseband device (for example, a radio remote unit (RRU) relative to the baseband processing unit ( Building Base band Unit, BBU)
  • RRU radio remote unit
  • BBU Building Base band Unit
  • RAN equipment is implemented by a node, which is used to implement radio resource control (Radio Resource Control, RRC), packet data convergence protocol (Packet Date Convergence Protocol, PDCP), and radio link control (Radio Link Control, RLC), Medium Access Control (Medium Access Control, MAC) and other protocol layer functions.
  • RRC Radio Resource Control
  • PDCP Packet Date Convergence Protocol
  • RLC Radio Link Control
  • Medium Access Control Medium Access Control
  • MAC Medium Access Control
  • a baseband device may include a centralized unit (CU) and a distributed unit (DU), and multiple DUs may be centrally controlled by one CU.
  • CU and DU can be divided according to the protocol layer of the wireless network.
  • the functions of the protocol layer of the packet data convergence layer and above are set in the CU.
  • the CU has the functions of the RRC protocol layer and the PDCP protocol layer; below PDCP
  • the protocol layer such as Radio Link Control (RLC) and media access control layer, as well as the physical layer and other functions are set in the DU.
  • RLC Radio Link Control
  • media access control layer as well as the physical layer and other functions are set in the DU.
  • this protocol layer is just an example, and it can also be divided in other protocol layers, for example, in the RLC layer, setting the functions of the RLC layer and above protocol layers in the CU, and setting the functions of the protocol layers below the RLC layer in the DU; Or, in a certain protocol layer, for example, part of the functions of the RLC layer and the functions of the protocol layer above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer are set in the DU. In addition, it can also be divided in other ways, for example, by time delay. The functions that need to meet the time delay requirement for processing time are set in the DU, and the functions that do not need to meet the time delay requirement are set in the CU.
  • the radio frequency device can be remote, not placed in the DU, can also be integrated in the DU, or part of the remote part is integrated in the DU, and there is no restriction here.
  • control plane (CP) and user plane (UP) of the CU can also be separated and implemented by dividing them into different entities.
  • the data generated by the CU can be sent to the terminal through the DU, or the data generated by the terminal can be sent to the CU through the DU.
  • the DU may directly pass the protocol layer encapsulation to the terminal or CU without analyzing the data.
  • the RRC or PDCP layer data will eventually be processed as physical layer (Physical Layer, PHY) data and sent to the terminal, or converted from the received PHY layer data.
  • the RRC or PDCP layer data can also be considered to be sent by the DU.
  • the CU is divided into the access network equipment in the RAN.
  • the CU can also be divided into the access network equipment in the CN, which is not limited here.
  • the devices in the following embodiments of the present application may be located in a terminal or an access network device according to the functions they implement.
  • the network device may be a CU node, or a DU node, or a RAN device including the functions of the CU node and the DU node.
  • FIG. 4 shows a schematic diagram of the hardware structure of a communication device provided by an embodiment of the present application.
  • the hardware structure of the terminal 20, the terminal 30, and the network device 10 in the embodiment of the present application can refer to the structure shown in FIG. 4.
  • the communication device includes a processor 41, a communication line 44, and at least one communication interface (in FIG. 4, it is only an example and the transceiver 43 is included as an example for illustration).
  • the processor 41 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 44 may include a path to transmit information between the aforementioned components.
  • the transceiver 43 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • RAN radio access network
  • WLAN wireless local area networks
  • the communication device may further include a memory 42.
  • the memory 42 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (Including compact discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • the memory can exist independently and is connected to the processor through the communication line 44. The memory can also be integrated with the processor.
  • the memory 42 is used to store computer-executed instructions for executing the solution of the present application, and the processor 41 controls the execution.
  • the processor 41 is configured to execute computer-executable instructions stored in the memory 42 to implement a scheduling request processing method provided in the following embodiments of the present application.
  • the computer-executed instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 41 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 4.
  • the communication device may include multiple processors, such as the processor 41 and the processor 45 in FIG. 4.
  • processors may be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • V2X services are transmitted on Sidelink resources on Sidelink
  • Uu services are transmitted on Uu resources on Uu links.
  • the terminal can obtain Sidelink resources in the following ways:
  • Method 1 The network equipment allocates scheduling resources (hereinafter referred to as: scheduling mode). That is, when a connected terminal performing V2X communication needs to transmit Sidelink information to another terminal on Sidelink, the terminal needs to first send a buffer status report (Buffer Status Report, BSR) to the network device.
  • BSR Buffer Status Report
  • the BSR is used to report the amount of data that the terminal currently needs to transmit on the Sidelink, so that the network device can allocate an appropriate size of Sidelink resources according to the amount of data.
  • the terminal can send the BSR to the network device on the uplink resource. If the current terminal does not have uplink resources to report the BSR, a scheduling request (Scheduling Request, SR) may be triggered.
  • Scheduling Request SR
  • the terminal sends an SR request message to the network device through the SR resource.
  • the SR request message requests the network device to allocate uplink resources for sending the BSR for the terminal.
  • the network device After the network device receives the SR request message, it allocates uplink resource authorization for the terminal according to the scheduling result for the terminal to send the BSR.
  • Method 2 The terminal independently selects resources (hereinafter referred to as: autonomous mode). That is, when a terminal performing Sidelink communication needs to transmit Sidelink information to another terminal on Sidelink, the terminal can independently select resources from the network device configuration or pre-configured resource pool, so as to use the independently selected Sidelink resources to transfer Sidelink resources to another. A terminal transmits Sidelink information.
  • autonomous mode resources
  • the resource pool configured by the network device can be configured through system information, or through dedicated signaling after receiving a request from the terminal to perform Sidelink communication, or through a pre-configuration method.
  • the network device may configure the terminal to perform the scheduling mode.
  • the terminal can only be configured to execute either the autonomous mode or the scheduling mode. If the terminal previously worked in the scheduling mode, the BSR on the Sidelink is triggered due to the need for Sidelink communication and data to be transmitted. But at this time, the uplink resources of the BSR are not reported, so the triggered SR is in the suspended state. On the premise that all the suspended SRs are triggered by the BSR on Sidelink, if the terminal working in the scheduling mode is reconfigured to operate in the autonomous mode, all the suspended SRs will be cancelled.
  • the terminal or the side link service of the terminal can be configured to support both the scheduling mode and the autonomous mode (hereinafter referred to as the scheduling and autonomous combined mode).
  • a terminal that supports both modes may have the following types of Sidelink logical channels: Sidelink logical channels in the scheduling mode, Sidelink logical channels in the autonomous mode, and Sidelink logical channels in the scheduling and autonomous joint mode.
  • a side-link service supporting scheduling and autonomous joint mode in this embodiment of the application refers to that the service corresponding to the side-link service can be transmitted through the side-link resources allocated by the base station in the scheduling mode, or can be used The terminal independently selects the side link resource transmission in the autonomous mode.
  • the terminal previously worked in the scheduling mode, and all the suspended SRs are triggered by the BSR on the Sidelink.
  • the working mode of some logical channels may still be the scheduling mode. That is, when the terminal is reconfigured from the scheduling mode to the scheduling and autonomous joint mode, only the working modes of some logical channels are switched at the same time. If the method in LTE is used to directly cancel all SRs triggered by the BSR on Sidelink, the logical channel whose working mode has not changed still needs to request Sidelink resources from the network device, and the BSR on Sidelink needs to be triggered again, and then the SR is triggered to restart. Request the network equipment to allocate Sidelink resources, which will increase the delay.
  • the working mode of the terminal is switched from the scheduling mode to the scheduling and autonomous joint mode, if all the side link logical channels corresponding to the terminal support the scheduling and autonomous joint mode, then The side link logical channel of the terminal may be switched to scheduling and autonomous joint mode. If some side link logical channels of all side link logical channels corresponding to the terminal support scheduling and autonomous joint mode, another part of the side link logical channels does not support scheduling and autonomous joint mode (for example, another part of side link logical channels) If the logical channel supports the scheduling mode or the autonomous mode), the working mode of the side link logical channel supporting the scheduling and the autonomous combined mode is switched from the scheduling mode to the scheduling and autonomous combined mode. The working mode of the side link logical channel that does not support the scheduling and autonomous joint mode may not change, or may change to the autonomous mode or the scheduling mode.
  • the embodiment of the present application provides a scheduling request processing method, and the execution subject of the scheduling request processing method may be a terminal or a chip applied to the terminal.
  • the following embodiment takes the terminal as an example where the execution subject of the scheduling request processing method is a terminal.
  • the embodiment of the present application is based on FIG. 1 to FIG. 4. As shown in FIG. 5, the embodiment of the present application provides a scheduling request processing method, which includes:
  • Step 101 The working mode of the first side uplink service of the terminal is switched from the scheduling mode to the first mode.
  • the first side uplink has one or more pending scheduling requests SR.
  • the first mode includes: dispatch and autonomous joint mode or autonomous mode.
  • step 102 may be performed.
  • the first side link service may be a set of one or more side link services possessed by the terminal.
  • Each side link service in the one or more side link services may correspond to at least one suspended SR.
  • step 101 in the embodiment of the present application may be implemented in the following manner: the terminal receives the first signaling, and the first signaling The signaling is used to indicate to switch the working mode of the first side uplink service from the scheduling mode to the first mode. Therefore, the terminal can determine to switch the working mode of the first side uplink service from the scheduling mode to the first mode according to the first signaling.
  • the first side uplink service can support both the scheduling mode and the autonomous mode. That is, the first side uplink service can support scheduling and autonomous joint mode. Or the first side uplink service can only support the autonomous mode.
  • step 101 in the embodiment of the present application may be implemented in the following manner: the terminal receives the second signaling, and the second signaling is used for Instructs to switch the working mode of the terminal from the scheduling mode to the first mode. Therefore, the terminal can determine to switch the working mode of the first side uplink service from the scheduling mode to the first mode according to the first signaling.
  • the first side link service can support the autonomous mode. Or the first side uplink service can support scheduling and autonomous joint mode.
  • the terminal needs to switch from the scheduling mode to the scheduling and autonomous joint mode, for each side link service of the terminal, only one type of working mode is supported. Then if the terminal needs to switch from the scheduling mode to the scheduling and autonomous joint mode, the terminal includes two types of side link services. That is, only the side link services in the scheduling mode are executed, and only the side link services in the autonomous mode are executed. For example, if the terminal is configured in a scheduling and autonomous joint mode, and the side link service 1 and side link service 2 of the terminal only support one type of working mode, the working mode of the side link service 1 can be changed Switch to autonomous mode. The side link service 2 can be switched to the scheduling mode, so that the working mode of the terminal is switched to the scheduling and autonomous joint mode.
  • the terminal may include side link services that perform scheduling and autonomous joint mode, as well as the following types of side links Any one or more of the link services: only perform side link services in the scheduling mode, and only perform side link services in the autonomous mode.
  • a side link service only supports a scheduling mode
  • the terminal uses the side link resources scheduled by the base station to transmit the side link service.
  • a side link service only supports the autonomous mode
  • the terminal uses the resource selected in the resource pool configured or pre-configured in the base station to transmit the side link service.
  • a side link service supports scheduling and autonomous joint mode
  • the terminal can use the resources scheduled by the base station to transmit the side link service, or use the resources configured by the base station or the pre-configured resource pool to transmit the side link.
  • Road business if a side link service only supports a scheduling mode, the terminal uses the side link resources scheduled by the base station to transmit the side link service.
  • the terminal involved in the embodiment of the present application using side-link resources to transmit the side-link service refers to: the terminal uses the side-link resources to transmit the service corresponding to the side-link service.
  • the terminal using the side link resource to transmit the side link service means: the terminal uses the side link resource to transmit on the side link logical channel Business in the transmission.
  • the terminal may obtain the first signaling or the second signaling from the base station. Specifically, the terminal may obtain the first signaling or the second signaling from the base station through the Uu interface. Wherein, the first signaling or the second signaling may be a broadcast message or a dedicated radio resource control (Radio Resource Control, RRC) message.
  • RRC Radio Resource Control
  • the side link service includes any one or more of the following: side link QoS flow, side link logical channel (Sidelink Logical Channel, Sidelink LCH), side link data Radio bearer (Sidelink Data Radio Bear, Sidelink DRB), Sidelink Logical Channel Group (Sidelink LCG), Sidelink Service Target ID, Sidelink Packet Data Unit Session (Sidelink Packet Data Unit) , Sidelink PDU).
  • side link QoS flow side link logical channel
  • Sidelink Logical Channel Sidelink LCH
  • side link data Radio bearer Sidelink Data Radio Bear, Sidelink DRB
  • Sidelink Logical Channel Group Sidelink LCG
  • Sidelink Service Target ID Sidelink Packet Data Unit Session (Sidelink Packet Data Unit)
  • Sidelink PDU Sidelink Packet Data Unit Session
  • the business target identifier can be destination ID.
  • the business target identifier usually indicates a specific type of business message or business data.
  • the LCH or LCG is used to determine the LCH of the terminal, that is, the LCH for the terminal to communicate with another terminal.
  • LCG is used to determine the LCG of the terminal, that is, the LCG that the terminal communicates with another terminal.
  • the DRB is used to determine the DRB of the terminal, that is, the DRB that the terminal communicates with another terminal.
  • DRB is used to transmit data between a terminal and another terminal.
  • Step 102 The terminal cancels one or more suspended SRs.
  • step 102 in the embodiment of the present application can be implemented in the following manner: the terminal cancels or deletes the buffer status report of the suspended SR that triggers the first side uplink service. , BSR).
  • the embodiment of the present application provides a scheduling request processing method.
  • the terminal cancels the first side uplink service with one or more pending services. SR. Since the working mode of the first side link service has been switched, that is, when the working mode of the side link service changes, only one or more suspensions of the first side link service whose working mode is switched are cancelled SR. This is because in the scheduling and autonomous joint mode or the autonomous mode, the terminal can autonomously select the side link resources to transmit the first side link service. Therefore, by canceling the one or more suspended SRs of the first side uplink service, it is possible to prevent the terminal from requesting scheduled side link resources for the first side uplink service.
  • the other side link services in the terminal except the first side link service also have at least one suspended SR, at least one of the remaining side link services whose working mode has not been switched can be reserved. SR. This can avoid re-triggering the BSR, and then triggering the SR to re-request the base station to allocate Sidelink resources to increase the scheduling delay.
  • the method provided in this embodiment of the present application further includes the following step 103, or step 104, or step 105.
  • Step 103 The terminal maintains the cancelled first SR configuration of the suspended SR, where the first SR configuration is the SR configuration of the cancelled suspended SR in the scheduling mode.
  • the cancellation of a suspended SR in the embodiment of the application indicates that the state of the SR will no longer be the suspended state, that is, the SR will not be reported temporarily.
  • An SR configuration involved in the embodiments of this application may include any one or more of the following parameters: SR prohibition timer, SR maximum transmission times, SR configuration identifier, SR transmission resource, SR transmission resource period, and SR transmission The offset of the resource.
  • the terminal cancels the suspended SR corresponding to the first side uplink service, the terminal maintains the first SR configuration of the suspended SR corresponding to the first side uplink service. That is, even if a suspended SR is cancelled when the working mode is switched, the terminal may retain the first SR configuration of the cancelled suspended SR in the scheduling mode.
  • Step 104 The terminal releases the cancelled first SR configuration of the suspended SR. That is, if the working mode of the first side uplink service is switched from the scheduling mode to the first mode, the terminal releases the first SR configuration of the suspended SR corresponding to the first side uplink service in the scheduling mode.
  • Step 105 The terminal modifies the first SR configuration of the cancelled suspended SR to the second SR configuration, and the second SR configuration is the SR configuration of the cancelled suspended SR in the first mode.
  • the terminal updates the SR configuration of the suspended SR corresponding to the first side uplink service to the second SR configuration.
  • the first SR configuration and the second SR configuration in the embodiment of the present application may be configured by the base station for the terminal.
  • the terminal receives the first SR configuration and the second SR configuration from the base station.
  • the method provided in the embodiment of the present application further includes:
  • Step 106 If the working mode of the second side link service of the terminal is the scheduling mode, the terminal reserves the suspended SR corresponding to the second side link service among the one or more suspended SRs.
  • the terminal can control the reserved suspended SR to use the working mode of the side-link service before switching occurs The first SR configuration.
  • the terminal can also configure the second SR in the new working mode after the working mode of the reserved suspended SR using the side link service is switched.
  • a terminal has multiple side-link services, some side-link service modes are switched from the scheduling mode to the first mode (for example, the first side-link service), and some side-link services
  • the working mode of the road service is still the scheduling mode (for example, the second side uplink service), and the terminal only cancels the suspended SR corresponding to the first side uplink service.
  • the terminal reserves the suspended SR corresponding to the second side uplink service in the one or more suspended SRs.
  • the terminal has suspended SR1, suspended SR2, suspended SR3, suspended SR4, side link service 1, side link service 2, and side link service in the scheduling mode 3.
  • the side link service 1 corresponds to the suspended SR1 and the suspended SR3.
  • Sidelink service 2 corresponds to suspended SR2 and suspended SR4.
  • the side link service 3 may not have a suspended SR. If the terminal determines that the working mode of the side link service 1 is switched from the scheduling mode to the first mode, the terminal can cancel the suspended SR1 and the suspended SR3.
  • the terminal reserves suspended SR2 and suspended SR4.
  • one SR in the embodiment of the present application may have one SR configuration. Multiple SRs can also correspond to one SR configuration. Multiple SRs can correspond to multiple SR configurations. For example, SR1 corresponds to SR configuration 1. SR2 corresponds to SR configuration 2.
  • an embodiment of the present application also provides a scheduling request processing method, which includes:
  • Step 201 The working mode of the side link service of the terminal is switched from the first mode to the second mode. Among them, in the first mode, the terminal has one or more suspended SRs.
  • the terminal may determine that the working mode of the side link service is switched from the first mode to the second mode.
  • the terminal can also independently decide whether to switch the working mode of the side link service from the first mode to the second mode. For example, if the terminal decides that the autonomously selected side link resources are sufficient, the terminal may determine to switch the working mode of the side link service from the scheduling mode to the autonomous mode, or the scheduling and autonomous mode. Or decide to switch the working mode of the side link service from dispatching and autonomous mode to autonomous mode.
  • the terminal may determine to switch the working mode of the side-link service from the scheduling mode to the autonomous mode, or the scheduling and autonomous mode according to the service corresponding to the side-link service. Or switch from dispatching and autonomous mode to autonomous mode. For example, if the service needs to use autonomously selected side link resources for transmission, the terminal may determine to switch from the scheduling mode or the scheduling and autonomous mode to the autonomous mode.
  • the one or more suspended SRs include at least the first suspended SR corresponding to the side link service.
  • the first suspended SR may be the first suspended SR of the side link service.
  • the side link service described in step 201 of the embodiment of the present application may refer to a set of one or more side link services possessed by the terminal, and each side link service in the set may correspond to the first link service. From the SR.
  • Step 202 The terminal cancels or reserves the first suspended SR corresponding to the side link service in one or more suspended SRs according to a preset rule.
  • the preset rule includes any one or more of the following information: the buffer state of the terminal, the parameters of the side link channel, and the working mode of the side link service.
  • the buffer status of the terminal may refer to the buffer status of the side link service.
  • the specific content of the specific side link service refer to the description in the foregoing embodiment.
  • step 202 in the embodiment of the present application may be specifically implemented in the following manner: the terminal cancels or reserves the first suspended SR according to the relationship between the buffer state of the terminal and the buffer amount threshold.
  • step 202 in the embodiment of the present application can be specifically implemented in the following manner:
  • Step 2021 The cache state is greater than the first threshold, and the terminal retains the first suspended SR.
  • the terminal determines that the buffer status of the suspended SR is greater than the first threshold, it means that the resources scheduled by the base station still need to be used to transmit the side link service, so it is necessary to reserve the first suspended SR.
  • Step 2022 the cache status is less than or equal to the second threshold, and the terminal cancels the first suspended SR.
  • the buffer status of the terminal in the embodiment of the present application is used for the data volume of the service to be sent in the terminal.
  • the buffer status of the suspended SR is less than or equal to the second threshold, it indicates that the sidelink service can use the resources in the autonomous mode without requesting resources from the base station, so there is no need to reserve the first suspended SR , That is, the first suspended SR triggered by the side link service should be cancelled.
  • the buffer state of the terminal may be the buffer state of the side link service.
  • the cache state may be the percentage of the cache state in the total cache state of the side link service, or the remaining cache state in the total cache state, or the existing cache state in the side link service.
  • the first threshold and the second threshold may be pre-stored in the terminal.
  • the amount of buffer used for comparison may be the amount of buffer of the side link LCG, and the threshold of the buffer amount is set for the logical channel group. If the buffer amount used for comparison is the side link LCH, the buffer amount threshold may also be the buffer amount of a single side link LCH. In this case, the buffer amount threshold is set for the logical channel.
  • the terminal cancels the first suspended SR corresponding to the LCH. If the buffer state of the LCH is less than or equal to the second threshold, the terminal reserves the first suspended SR corresponding to the LCH.
  • the buffer status of the LCH indicates the data volume of the service to be sent in the LCH.
  • the first threshold and the second threshold are not limited. In actual use, the first threshold and the second threshold can be set as needed. The first threshold may be equal to or not equal to the second threshold.
  • step 202 in the embodiment of the present application may be implemented in the following manner: the terminal determines to cancel or reserve the first suspension according to the relationship between the parameters of the side link channel and the preset channel parameter threshold. SR.
  • the parameter of the side link channel may be a channel busy ratio (Channel Busy Ratio, CBR).
  • CBR Channel Busy Ratio
  • the sidelink channel in the embodiment of the present application may refer to the resources occupied by the Sidelink information when the terminal sends the Sidelink information to other terminals.
  • the Sidelink channel may include a Pysical Sidelink Share Channel (PSSCH), a Pysical Sidelink Control Channel (PSCCH), a reference signal, or other channels that carry Sidelink information.
  • PSSCH Pysical Sidelink Share Channel
  • PSCCH Pysical Sidelink Control Channel
  • reference signal or other channels that carry Sidelink information.
  • step 202 in the embodiment of the present application may be implemented in the following manner:
  • Step 2023 The parameter of the side link channel is higher than the third threshold, and the terminal reserves the first suspended SR.
  • the parameter of the side link channel is higher than the third threshold, it indicates that when switching to the autonomous mode or the scheduling and autonomous mode, the side link resources that the terminal can independently select are congested, and the side link scheduled by the base station is still required Resource, it is necessary to reserve the first suspended SR.
  • Step 2024 The parameter of the side link channel is lower than or equal to the fourth threshold, and the terminal cancels the first suspended SR.
  • the parameter of the side link channel is lower than or equal to the fourth threshold, it indicates that when switching to the autonomous mode or the scheduling and autonomous mode, the side link resources that the terminal can independently select are sufficient. That is, the terminal can use the independently selected side link resource to send the side link service, so there is no need to request the scheduled side link resource from the base station, so the first suspended SR can be cancelled.
  • the terminal may determine to cancel or reserve the first suspended SR in combination with the parameters of the side link channel and the buffer state. As shown in FIG. 11, that is, if the parameter of the side link channel is higher than the third threshold and the buffer state is greater than the first threshold, the terminal retains the first suspended SR. If the parameter of the side link channel is lower than the fourth threshold and the buffer status is less than or equal to the second threshold, the terminal cancels the first suspended SR.
  • the first mode includes a scheduling mode
  • the second mode includes an autonomous mode, or a scheduling and autonomous joint mode. That is, when the working mode of the side link service is switched from the scheduling mode to the autonomous mode, or the scheduling and autonomous joint mode, the relationship between the parameters of the side link channel and the preset channel parameter threshold can be judged, and/ Or, the relationship between the cache state and the cache amount threshold determines whether to cancel or reserve the first suspended SR.
  • step 202 provided in the embodiment of the present application can also be implemented in the following manner: the terminal determines that the working mode of the side link service is switched from the first mode to the second mode, The terminal performs any one of the following actions:
  • Step 2025 If the working mode of the side link service is switched from the scheduling mode to the autonomous mode, the terminal cancels the first suspended SR.
  • the terminal cancels the multiple suspended SRs.
  • the terminal reserves one or more suspended SRs. That is, if the side-link services corresponding to all suspended SRs still work in the scheduling-only mode, that is, the working mode of this part of the side-link services does not change before and after the working mode of the side-link services is switched, then Reserve the suspended SR corresponding to this part of the side link service.
  • the terminal has suspended SR1, suspended SR2, suspended SR3, and suspended SR4 in the scheduling mode.
  • the suspended SR1 and the suspended SR2 in the scheduling mode correspond to the side link service 1
  • the suspended SR3 corresponds to the side link service 2
  • the suspended SR4 corresponds to the side link service 3.
  • the terminal determines to cancel the suspended SR1, the suspended SR2, and the suspended SR3. If the working mode of the side link service 3 is still the scheduling mode, the terminal determines to reserve the suspended SR4.
  • Step 2026 If the working mode of the first side uplink service is switched from the scheduling mode to the autonomous mode, and the working mode of the second side uplink service is the scheduling mode, the terminal cancels one or more suspended SRs.
  • the first side link service and the second side link service belong to the side link service.
  • the one or more SRs also include the suspended SR of the second side uplink service. This is because if the working mode is switched with the terminal as the granularity or the side-link service as the granularity, even if the working mode is switched, the working mode of the second side-link service will not change. That is still the scheduling mode.
  • the terminal needs to switch from the scheduling mode to the scheduling and autonomous joint mode, if the second side uplink service does not change, the first side uplink service supports the autonomous mode. That is, only the working mode of the first side uplink service is switched from the scheduling mode to the autonomous mode.
  • the terminal stops the SR prohibit timer in the same SR configuration.
  • the terminal stops the SR prohibition timer of any SR in the SR configuration to which the any SR belongs.
  • the terminal may cancel the suspended SR corresponding to the LCH. Since the working mode of the LCH1 has not been switched, the terminal can reserve the suspended SR corresponding to the LCH1. And as shown in Figure 13 (a), the suspended SR corresponding to LCH1 and the suspended SR corresponding to LCH2 belong to SR configuration 1, and the terminal can control the SR prohibition timer in SR configuration 1 to be in the on state. In addition, as shown in (b) of FIG.
  • the pending SR corresponding to LCH1 and the pending SR corresponding to LCH2 both belong to SR configuration 1
  • the pending SR corresponding to LCH3 belongs to SR configuration 2.
  • the suspended SR corresponding to LCH1 and the suspended SR corresponding to LCH2 are both cancelled, and the terminal can stop the SR prohibit timer in SR configuration 1.
  • the working mode of LCH3 has not been switched, and the pending SR corresponding to LCH3 has not been cancelled. Therefore, the working state of the SR prohibition timer of SR configuration 2 remains unchanged.
  • step 202 in the embodiment of the present application can also be specifically implemented in the following manner:
  • Step 2027 The working mode of the side link service is switched from the first mode to the second mode, and the terminal cancels the first suspended SR.
  • the first mode is a scheduling and autonomous joint mode
  • the second mode is an autonomous mode.
  • the terminal can determine to directly cancel the first suspended SR.
  • step 202 in the embodiment of the present application may also be specifically implemented in the following manner:
  • Step 2028 In the case that the terminal does not obtain a transmission opportunity to report the one or more suspended SRs, the terminal retains at least one suspended SR or cancels at least one suspended SR.
  • the terminal can independently decide to retain the first suspended SR or cancel the first suspended SR.
  • Step 2029 The terminal has reported the first suspended SR, but the maximum number of SR reports has not been reached, the terminal cancels the transmission of the first suspended SR, or the terminal retains the first suspended SR And re-report the first suspended SR according to the SR configuration of the first suspended SR in the second mode.
  • the second mode is scheduling and autonomous joint mode.
  • the terminal can Cancel the first suspended SR directly.
  • the side link service previously working in the scheduling-only mode has triggered the first suspended SR, and the first suspended SR has been reported, but the maximum number of SR reports has not been reached, then when the side link
  • the first suspended SR is retained and the first suspended SR is re-reported according to the new SR configuration corresponding to the first suspended SR in the second mode.
  • the terminal continues to process according to the new SR configuration, that is, if the number of reporting times of the first suspended SR does not reach the maximum number of SR reporting specified by the new SR configuration, then continue to report the first suspended SR. If the number of reports of the first suspended SR reaches or exceeds the maximum number of SR reports configured by the new SR, a random access procedure is initiated.
  • one or more suspended SRs are triggered by the buffer status report of the side link, and one or more suspended SRs have the first SR configuration in the first mode.
  • the method provided in the application embodiment further includes: the terminal determines that the working mode of the side link service is switched from the first mode to the scheduling and autonomous joint mode, the terminal cancels one or more suspended SRs, the terminal uses the second SR configuration, and the first The second SR configuration is the SR configuration of the side link service in the scheduling and autonomous joint mode.
  • the first mode may be a scheduling mode.
  • the terminal determines that the working mode of the side link service is switched from the first mode to the scheduling and autonomous joint mode, the terminal maintains the one or more suspended SRs, and the terminal releases the first SR configuration, Using the second SR configuration, the second SR configuration is the SR configuration of the side link service in the scheduling and autonomous joint mode. It should be understood that the first mode may be a scheduling mode.
  • the method provided in the embodiment of the present application further includes: the foregoing step 103, step 104, or step 105.
  • step 103, step 104, or step 105 For the specific process, refer to the description at step 103, step 104, or step 105, which will not be repeated here.
  • the method provided in the embodiment of the present application further includes:
  • Step 203 The network device sends a first message to the terminal, where the first message includes any one or more of the first threshold, the second threshold, the third threshold, and the fourth threshold.
  • Step 204 The terminal receives a first message from the network device, where the first message includes any one or more of the first threshold, the second threshold, the third threshold, and the fourth threshold.
  • the network device can send the first message to the terminal through the Uu interface.
  • the first message may be a broadcast system message or dedicated RRC signaling.
  • each network element such as a terminal, includes a hardware structure and/or software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application may divide functional units according to the above-mentioned method example terminals and network devices.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 17 shows a scheduling request processing apparatus involved in the foregoing embodiment, and the scheduling request processing apparatus may include: a processing unit 101.
  • the scheduling request processing apparatus may further include a transceiver unit 102, configured to receive the first signaling or the second signaling from the network device.
  • a transceiver unit 102 configured to receive the first signaling or the second signaling from the network device.
  • the processing unit 101 is configured to support the scheduling request processing device to execute steps 101 and 102 executed by the terminal in the foregoing embodiment.
  • the processing unit 101 is further configured to support the scheduling request processing apparatus to execute step 103, step 104, and step 105 performed by the terminal in the foregoing embodiment.
  • the processing unit 101 is configured to support the scheduling request processing apparatus to execute steps 201 and 202 performed by the terminal in the above-mentioned embodiment .
  • the transceiver unit 102 is further configured to support the scheduling request processing apparatus to perform step 204 performed by the terminal in the foregoing embodiment.
  • the processing unit 101 is specifically configured to support the scheduling request processing apparatus to execute steps 2021, step 2022, step 2023, step 2024, step 2025, step 2026, step 2027, step 2028, and step performed by the terminal in the foregoing embodiment. 2029.
  • the processing unit 101 may be a processor 41 and a processor 45.
  • the transceiver unit 102 may be a transceiver 43.
  • the processing unit 101 may be a processor, and the transceiving unit 102 may be a communication interface of the chip in the terminal, such as an input/output interface, a pin or a circuit Wait.
  • FIG. 18 shows a schematic diagram of a possible logical structure of the scheduling request processing apparatus involved in the foregoing embodiment.
  • the scheduling request processing device includes: a processing module 112.
  • the scheduling request processing apparatus may further include a communication module 113.
  • the processing module 112 is used to control and manage the actions of the dispatch request processing device.
  • the processing module 112 is used to perform information/data processing steps in the dispatch request processing device.
  • the communication module 113 is used to support the scheduling request processing device to perform the steps of sending or receiving information/data.
  • the dispatch request processing device may further include a storage module 111 for storing program code and data of the dispatch request processing device.
  • the communication module 113 is used to support the scheduling request processing device to perform the first signaling or the first signaling received in the foregoing embodiment.
  • the processing module 112 is configured to support the scheduling request processing apparatus to execute step 101 and step 102 in the foregoing embodiment.
  • the processing module 112 is further configured to support the scheduling request processing apparatus to execute step 103, step 104, and step 105 in the foregoing embodiment.
  • the communication module 113 is used to support the scheduling request processing device to perform the first signaling or the first signaling received in the foregoing embodiment. Two steps of signaling. And step 203 is executed.
  • the processing module 112 is configured to support the scheduling request processing apparatus to execute step 201 and step 202 in the foregoing embodiment.
  • the processing module 112 is further configured to support the scheduling request processing apparatus to execute step 2021, step 2022, step 2023, step 2024, step 2025, step 2026, step 2027, step 2028, and step 2029 in the foregoing embodiment.
  • the processing module 112 may be a processor or a controller, for example, a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention.
  • the processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • the communication module 113 may be a transceiver, a transceiver circuit, or a communication interface.
  • the storage module 111 may be a memory.
  • the dispatch request processing apparatus may be the communication device shown in FIG. 4.
  • the memory 42, the processor 41 or the processor 45 and the transceiver 43 are connected to each other through a communication line 44.
  • the transceiver 43 is configured to support the communication device to perform the steps of receiving the first signaling or the second signaling in the foregoing embodiment.
  • the processor 41 or the processor 45 is configured to support the communication device to execute step 101 and step 102 in the foregoing embodiment.
  • the processor 41 or the processor 45 is further configured to support the communication device to execute step 103, step 104, and step 105 in the foregoing embodiment.
  • the dispatch request processing apparatus may be the communication device shown in FIG. 4.
  • the memory 42, the processor 41 or the processor 45 and the transceiver 43 are connected to each other through a communication line 44.
  • the transceiver 43 is configured to support the communication device to perform the steps of receiving the first signaling or the second signaling and step 204 in the foregoing embodiment.
  • the processor 41 or the processor 45 is configured to support the communication device to execute step 201 and step 202 in the foregoing embodiment.
  • the processor 41 or the processor 45 is further configured to support the communication device to perform step 2021, step 2022, step 2023, step 2024, step 2025, step 2026, step 2027, step 2028, and step in the foregoing embodiment. 2029.
  • FIG. 19 is a schematic structural diagram of a chip 150 provided by an embodiment of the present application.
  • the chip 150 includes one or more (including two) processors 1510 and a communication interface 1530.
  • the chip 150 further includes a memory 1540.
  • the memory 1540 may include a read-only memory and a random access memory, and provides operation instructions and data to the processor 1510.
  • a part of the memory 1540 may also include a non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the memory 1540 stores the following elements, execution modules or data structures, or their subsets, or their extended sets.
  • the corresponding operation is executed by calling the operation instruction stored in the memory 1540 (the operation instruction may be stored in the operating system).
  • One possible implementation is that the structure of the chip used by the terminal is similar, and different devices can use different chips to realize their respective functions.
  • the processor 1510 controls the processing operations of any one of the terminal and the network device, and the processor 1510 may also be referred to as a central processing unit (CPU).
  • CPU central processing unit
  • the memory 1540 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1510.
  • a part of the memory 1540 may also include a non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the memory 1540, the communication interface 1530, and the memory 1540 are coupled together through a bus system 1520, where the bus system 1520 may include a power bus, a control bus, and a status signal bus in addition to a data bus.
  • various buses are marked as the bus system 1520 in FIG. 19.
  • the methods disclosed in the foregoing embodiments of the present application may be applied to the processor 1510 or implemented by the processor 1510.
  • the processor 1510 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method can be completed by hardware integrated logic circuits in the processor 1510 or instructions in the form of software.
  • the aforementioned processor 1510 may be a general-purpose processor, a digital signal processing (digital signal processing, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field-programmable gate array, FPGA), or Other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processing
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • Other programmable logic devices discrete gate or transistor logic devices, discrete hardware components.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 1540, and the processor 1510 reads the information in the memory 1540, and completes the steps of the foregoing method in combination with its hardware.
  • the communication interface 1530 is used to implement the implementations shown in Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10, Figure 11, Figure 12, Figure 14, Figure 15, Figure 16.
  • the terminal receives and sends steps.
  • the processor 1510 is configured to execute the processing steps of the terminal in the embodiments shown in FIG. 5, FIG. 6, FIG. 7, FIG. 8, FIG. 9, FIG. 10, FIG. 11, FIG. 12, FIG. 14, FIG. 15, and FIG. .
  • the above transceiver unit may be an interface circuit or a communication interface of the device for receiving signals from other devices.
  • the transceiver unit is an interface circuit or a communication interface used by the chip to receive signals or send signals from other chips or devices.
  • the instructions stored in the memory for execution by the processor may be implemented in the form of a computer program product.
  • the computer program product may be written in the memory in advance, or it may be downloaded and installed in the memory in the form of software.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • Computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • computer instructions can be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to transmit to another website site, computer, server or data center.
  • a cable such as Coaxial cable, optical fiber, digital subscriber line (DSL)
  • wireless such as infrared, wireless, microwave, etc.
  • the computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk, SSD).
  • a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium.
  • the terminal or a chip applied in the terminal executes step 101, step 102, and step 103 in the embodiment. , Step 104, Step 105, and Step 106.
  • a computer-readable storage medium stores instructions.
  • the terminal or the chip applied in the terminal executes steps 201, 202, and steps in the embodiment. 204, step 2021, step 2022, step 2023, step 2024, step 2025, step 2026, step 2027, step 2028, step 2029.
  • the aforementioned readable storage medium may include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.
  • a computer program product including instructions.
  • the computer program product stores instructions.
  • the terminal or a chip applied in the terminal executes steps 101, 102, 103, and 103 in the embodiment.
  • a computer program product including instructions.
  • the computer program product stores instructions.
  • the terminal or a chip applied in the terminal executes steps 201, 202, and 204 in the embodiment. , Step 2021, step 2022, step 2023, step 2024, step 2025, step 2026, step 2027, step 2028, step 2029.
  • a chip is provided.
  • the chip is used in a terminal.
  • the chip includes at least one processor and a communication interface.
  • the communication interface is coupled to the at least one processor.
  • the processor is used to execute instructions to execute steps 101 and steps in the embodiment. 102, step 103, step 104, step 105, and step 106.
  • a chip is provided.
  • the chip is applied to a terminal.
  • the chip includes at least one processor and a communication interface.
  • the communication interface is coupled to the at least one processor.
  • the processor is used to execute instructions to execute steps 201 and Step 202, step 204, step 2021, step 2022, step 2023, step 2024, step 2025, step 2026, step 2027, step 2028, step 2029.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • a software program it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part.
  • the computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • Computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • computer instructions can be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (digital subscriber line, referred to as DSL) or wireless (such as infrared, wireless, microwave, etc.) transmission to another website site, computer, server or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or includes one or more data storage devices such as a server or a data center that can be integrated with the medium.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

Des modes de réalisation de la présente invention concernent un procédé et un appareil de traitement d'une demande de planification (SR), se rapportant au domaine technique des communications, et utilisés pour réduire le retard temporel d'une planification de ressources. Le procédé comprend : la commutation du mode de fonctionnement du trafic de liaison latérale d'un terminal depuis un premier mode vers un second mode, le terminal comprenant, dans le premier mode, un ou plusieurs SR en attente ; conformément à une règle prédéfinie, l'annulation ou la conservation par le terminal d'une première SR en attente correspondant au trafic de liaison latérale dans lesdites SR en attente, la règle prédéfinie comprenant : l'état de tampon du terminal, le paramètre d'un canal de liaison latérale et/ou le mode de fonctionnement du trafic de liaison latérale. En déterminant s'il convient ou non de conserver les SR en attente conformément à la règle prédéfinie, la présente invention peut réduire le retard temporel.
PCT/CN2020/072308 2019-01-31 2020-01-15 Procédé et appareil de traitement de demande de planification WO2020156185A1 (fr)

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