WO2022206393A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2022206393A1
WO2022206393A1 PCT/CN2022/081255 CN2022081255W WO2022206393A1 WO 2022206393 A1 WO2022206393 A1 WO 2022206393A1 CN 2022081255 W CN2022081255 W CN 2022081255W WO 2022206393 A1 WO2022206393 A1 WO 2022206393A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
network device
message
response message
communication
Prior art date
Application number
PCT/CN2022/081255
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English (en)
Chinese (zh)
Inventor
酉春华
徐小英
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华为技术有限公司
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Publication date
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Publication of WO2022206393A1 publication Critical patent/WO2022206393A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present application relates to the field of communication, and in particular, to a communication method and device.
  • RRC radio resource control
  • the inactive state is an intermediate state between the connected state and the idle state.
  • the terminal device in the inactive state, can initiate a random access (RA) process to the network device to restore the connection and enter the connected state, so as to transmit data in the connected state, or it can also pass the random access process. , transmit data in inactive state to realize data transmission.
  • RA random access
  • the reselected network device cannot complete the random access procedure in time and enters the connected state, which increases the data transmission delay and affects the communication efficiency.
  • Embodiments of the present application provide a communication method and device, which can solve the problem that random access cannot be completed in time, thereby reducing data transmission delay and improving communication efficiency.
  • a communication method is provided.
  • the communication method is applied to the first network device.
  • the communication method includes: sending a first request message to a second network device, and receiving a first response message from the second network device.
  • the first request message is used to request the data transmission policy of the terminal device.
  • the terminal device is in an inactive state and resides in the first network device.
  • the first response message includes the data transmission policy.
  • the data transmission policy of the terminal device can be configured for the first network device.
  • the first network device can forward the data of the terminal device in time according to the data transmission strategy, complete the random access process in time, and enter the connected state, thereby reducing the data transmission delay. Improve communication efficiency.
  • the data transmission strategy may include: a correspondence between the data of the terminal device and the wireless resources of the terminal device.
  • the terminal device can inform the first network device of the wireless resource corresponding to the data according to the corresponding relationship, so that the first network device can determine the data according to the corresponding relationship, such as determining the type of the data , or determine how the data is transmitted.
  • the first network device can cooperate with the terminal device to complete the random access process in time and enter the connection state, thereby transmitting the data in time, thereby reducing the data transmission delay and improving the communication efficiency.
  • the radio resources may include one or more of the following: radio bearers, radio link control RLC channels, or logical channels.
  • the first network device determines the data of the terminal device according to the corresponding relationship, and cooperates with the terminal device to complete the random access procedure in time and enter the connected state, thereby improving communication. efficiency.
  • the method in the first aspect may further include: receiving first indication information from the terminal device.
  • the first indication information may be used to indicate the radio resources of the terminal device.
  • the first network device can send the first RRC recovery message to the terminal device according to the first indication information, so that the terminal device can quickly restore the connection state, thereby transmitting data in time, reducing data transmission delay, and improving communication efficiency.
  • the method described in the first aspect may further include: sending a second request message to the second network device, and receiving a second response message from the second network device.
  • the second request message may be used to request the terminal device to restore the connection state
  • the second response message may be used to instruct the terminal device to restore the connection state.
  • the second network device since the second network device may be a network device where the terminal device has historically resided, such as an anchor network device, the second network device can accurately determine whether the terminal device needs to restore the connection state, thereby avoiding misjudgment by the first network device. This leads to errors in data transmission, which in turn can improve the reliability of data transmission.
  • the second response message may include the first RRC recovery message, so that the first network device may directly forward the first RRC recovery message.
  • the first RRC recovery message is a message generated by the second network device, rather than a message generated by the first network device. In this way, the second network device can be prevented from sending the configuration information required for generating the first RRC recovery message to the first network device, so as to reduce the risk of leakage of the configuration information, thereby improving network security.
  • the first response message may include a first RRC recovery message.
  • the second network device sends the first RRC recovery message to the first network device in advance, so that the terminal device can receive the first RRC recovery message faster, thereby recovering faster Connected state to further reduce data transmission delay and improve communication efficiency.
  • the method described in the first aspect may be executed by the first network device, or may be executed by a chip (system) or other components or components provided in the first network device, or may be executed by the first network device including the first network device. This is not limited in this application.
  • a communication method is provided.
  • the communication method is applied to the second network device.
  • the communication method includes: receiving a first request message from a first network device, and sending a first response message to the first network device.
  • the first request message is used to request the data transmission policy of the terminal device.
  • the terminal device is in an inactive state and resides in the first network device.
  • the first response message includes the data transmission policy.
  • the data transmission strategy may include: the correspondence between the data of the terminal device and the wireless resources of the terminal device.
  • the radio resources may include one or more of the following: radio bearers, radio link control RLC channels, or logical channels.
  • the method of the second aspect may further include: receiving a second request message from the first network device, and sending a second response message to the first network device.
  • the second request message may be used to request the terminal device to restore the connection state
  • the second response message may be used to instruct the terminal device to restore the connection state.
  • the second response message may include the first RRC recovery message.
  • the first response message may include a first RRC recovery message.
  • the method described in the second aspect may be executed by the second network device, or may be executed by a chip (system) or other components or components provided in the second network device, or may be executed by the second network device including the second network device. This is not limited in this application.
  • a communication device in a third aspect, includes: a receiving module and a sending module.
  • the sending module is configured to send the first request message to the second network device.
  • the receiving module is configured to receive the first response message from the second network device.
  • the first request message is used to request the data transmission policy of the terminal device.
  • the terminal device is in an inactive state and resides in the first network device.
  • the first response message includes the data transmission policy.
  • the data transmission strategy may include: a correspondence between the data of the terminal device and the wireless resources of the terminal device.
  • the radio resources may include one or more of the following: radio bearers, radio link control RLC channels, or logical channels.
  • the apparatus of the third aspect may further include: a processing module.
  • the receiving module is further configured to receive the first indication information from the terminal device.
  • the first indication information may be used to indicate the radio resources of the terminal device.
  • the processing module is configured to control the sending module to send the first radio resource control RRC recovery message to the terminal device according to the first indication information.
  • the sending module is further configured to send the second request message to the second network device before sending the first RRC recovery message to the terminal device.
  • the receiving module is further configured to receive a second response message from the second network device.
  • the second request message may be used to request the terminal device to restore the connection state
  • the second response message may be used to instruct the terminal device to restore the connection state.
  • the second response message may include the first RRC recovery message.
  • the first response message may include a first RRC recovery message.
  • the receiving module and the sending module can also be integrated into a transceiver module.
  • the transceiver module is used to implement the sending function and the receiving function of the apparatus described in the third aspect.
  • the apparatus of the third aspect may further include a storage module, where the storage module stores programs or instructions.
  • the processing module executes the program or the instruction, the apparatus can execute the method described in the first aspect.
  • the apparatus described in the third aspect may be executed by the first network device, may also be executed by a chip (system) or other components or components provided in the first network device, or may be executed by the first network device including the first network device. This is not limited in this application.
  • a communication device in a fourth aspect, includes: a receiving module and a sending module.
  • the receiving module is configured to receive the first request message from the first network device.
  • a sending module configured to send a first response message to the first network device.
  • the first request message is used to request the data transmission policy of the terminal device.
  • the terminal device is in an inactive state and resides in the first network device.
  • the first response message includes the data transmission policy.
  • the data transmission strategy may include: the correspondence between the data of the terminal device and the wireless resources of the terminal device.
  • the radio resources may include one or more of the following: radio bearers, radio link control RLC channels, or logical channels.
  • the receiving module is further configured to receive a second request message from the first network device, and the sending module is further configured to send a second response message to the first network device.
  • the second request message may be used to request the terminal device to restore the connection state
  • the second response message may be used to instruct the terminal device to restore the connection state.
  • the second response message may include the first RRC recovery message.
  • the first response message may include a first RRC recovery message.
  • the apparatus of the fourth aspect may further include a processing module.
  • the processing module is used to realize the processing function of the device.
  • the receiving module and the sending module can also be integrated into a transceiver module.
  • the transceiver module is used to implement the sending function and the receiving function of the apparatus described in the fourth aspect.
  • the apparatus according to the fourth aspect may further include a storage module, where the storage module stores programs or instructions.
  • the processing module executes the program or instruction, the apparatus can execute the method described in the second aspect.
  • the apparatus described in the fourth aspect may be executed by the second network device, or may be executed by a chip (system) or other components or components provided in the second network device, or may be executed by the second network device including the second network device. This is not limited in this application.
  • a communication device in a fifth aspect, includes a processor coupled to a memory for executing a computer program stored in the memory to cause the apparatus to perform the method of the first aspect or the second aspect.
  • the apparatus described in the fifth aspect may further include a transceiver.
  • the transceiver may be a transceiver circuit or an interface circuit.
  • the transceiver can be used for the device described in the fifth aspect to communicate with other devices.
  • the apparatus described in the fifth aspect may be the network device in the first aspect or the second aspect, or may be a chip (system) or other components or components provided in the network device, or may include the network device installation.
  • a communication device in a sixth aspect, includes: a processor and a memory; the memory is used for storing a computer program, when the processor executes the computer program, so that the apparatus executes the method described in the first aspect or the second aspect.
  • the apparatus described in the sixth aspect may further include a transceiver.
  • the transceiver may be a transceiver circuit or an interface circuit.
  • the transceiver can be used for the device described in the sixth aspect to communicate with other devices.
  • the apparatus described in the sixth aspect may be the network device in the first aspect or the second aspect, or may be a chip (system) or other components or components provided in the network device, or may include the network device installation.
  • a communication device in a seventh aspect, includes: a processor and an interface circuit. Wherein, the interface circuit is used to receive the code instruction and transmit it to the processor; the processor is used to run the code instruction to execute the method described in the first aspect or the second aspect.
  • the apparatus of the seventh aspect may further include: a receiver and a transmitter.
  • the receiver is used to implement the receiving function of the device
  • the transmitter is used to implement the transmitting function of the device.
  • the transmitter and receiver can also be integrated into one device, such as a transceiver. Wherein, the transceiver is used to realize the sending function and the receiving function of the device.
  • the apparatus of the seventh aspect may further include a memory, where the memory stores programs or instructions.
  • the processor of the seventh aspect executes the program or the instruction, the apparatus can execute the method of the first aspect or the second aspect.
  • the apparatus described in the seventh aspect may be the network device in the first aspect or the second aspect, or may be a chip (system) or other components or components provided in the network device, or may include the network device installation.
  • a communication device in an eighth aspect, includes a processor and a transceiver, wherein the transceiver may be a transceiver circuit or an interface circuit, the transceiver is used for information interaction between the device and other devices, the processor executes program instructions to execute the first aspect or The method described in the second aspect.
  • the apparatus according to the eighth aspect may further include a memory, where the memory stores programs or instructions.
  • the processor of the eighth aspect executes the program or the instruction, the apparatus can execute the method of the first aspect or the second aspect.
  • the apparatus described in the eighth aspect may be the network device in the first aspect or the second aspect, or may be a chip (system) or other components or components provided in the network device, or include the network device installation.
  • a communication system in a ninth aspect, includes one or more network devices.
  • the network device is configured to execute the method described in the first aspect or the second aspect.
  • a computer-readable storage medium comprising: a computer program or instruction; when the computer program or instruction is run on a computer, the computer is made to execute the method of the first aspect or the second aspect.
  • a computer program product comprising computer programs or instructions, which, when the computer program or instructions are run on a computer, cause the computer to perform the method of the first aspect or the second aspect.
  • FIG. 1 is a schematic diagram 1 of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram 1 of a network device provided by an embodiment of the present application.
  • FIG. 3 is a second schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart 1 of a communication method provided by an embodiment of the present application.
  • FIG. 5 is a second schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 6 is a third schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram 1 of a communication device provided by an embodiment of the present application.
  • FIG. 8 is a second schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • the idle state may be a state in which the terminal device is not connected to the network device.
  • the terminal device can perform procedures such as public land mobile network (PLMN) selection, cell selection, cell reselection, and system message broadcasting.
  • PLMN public land mobile network
  • the terminal device since the terminal device is not connected to the network device, does not access the network, does not occupy service resources of the network device, and does not obtain the context of the terminal device, data cannot be transmitted.
  • the connection state may be a state in which the terminal device completes the connection with the network device.
  • an RRC connection is established between the terminal device and the network device, such as a data radio bearer (DRB) connection or a signaling radio bearer (SRB) connection.
  • DRB data radio bearer
  • SRB signaling radio bearer
  • the terminal device can enter the connected state from the idle state.
  • the terminal device may enter the connected state by sending an RRC connection establishment request (RRC concept establish request) message to the network device, thereby establishing an RRC connection with the network device.
  • RRC connection establishment request RRC concept establish request
  • the terminal device can also enter the connected state from the inactive state.
  • the terminal device can enter the connected state through a random access procedure, such as sending an RRC resume request (RRC resume request) message to the network device, thereby restoring the RRC connection with the network device.
  • the terminal device can also be released from the connected state to the idle state or the inactive state.
  • a terminal device can receive an RRC release (RRC release) message from a network device, and release it to an idle state or an inactive state according to the RRC release message, thereby reducing resource overhead, reducing power consumption, and improving the endurance of the terminal device.
  • RRC release RRC release
  • the inactive state may be an intermediate state between the connected state and the idle state, and may also be referred to as a "third state".
  • the terminal device can realize data transmission through the random access procedure.
  • a terminal device can realize early data transmission in an inactive state through a random access procedure, which is also called "data forwarding" or “small data transmission (SDT)".
  • SDT small data transmission
  • the terminal device can also quickly restore the connected state through the random access procedure, and transmit data in the connected state.
  • the data transmission in the connection state may be non-small data transmission (non-SDT), which is not limited.
  • the inactive state can save the context of the terminal device, compared to restoring the connected state from the idle state, the context is not required to be regenerated from the inactive state, thereby reducing signaling interaction and data transmission delay. Thus, the communication efficiency is improved.
  • the terminal device can reselect from the cell currently camping on to another cell, such as reselection and camping on a cell with a better signal.
  • the cell reselection may include intra-site reselection and inter-site reselection.
  • Intra-site reselection generally refers to terminal equipment reselection from one cell of the same network equipment to another cell
  • inter-site reselection generally refers to terminal equipment reselection from a cell of one network equipment to a cell of another network equipment.
  • WiFi wireless fidelity
  • V2X vehicle-to-everything
  • D2D device-todevie
  • Communication systems Internet of Vehicles communication systems
  • 4th generation (4G) mobile communication systems such as long term evolution (LTE) systems
  • WiMAX worldwide interoperability for microwave access
  • 5G mobile communication systems such as new radio (NR) systems
  • 6G 6th generation
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • FIG. 1 is a schematic structural diagram of a communication system to which the communication method provided by the embodiment of the present application is applied.
  • the communication system includes network equipment and terminal equipment.
  • the above-mentioned terminal equipment can be connected to a wireless network to obtain other networks through the wireless network, such as services provided by a data network (DN), or communicate with other equipment through the wireless network, such as communication with other terminal equipment.
  • the wireless network includes a radio access network (RAN) and a core network (core network, CN).
  • the RAN may also be called an access network (AN), and may include one or more network devices, such as a first network device and a second network device, for connecting the terminal device to the wireless network, the CN
  • One or more core network network elements may be included to manage the terminal equipment and provide a gateway for communicating with the DN.
  • the above-mentioned terminal equipment also referred to as user equipment (UE) includes equipment that provides voice and/or data services to users, for example, may include a handheld device with a wireless connection function, or a wireless connection The modem's processing device.
  • the terminal equipment may communicate with the CN via the RAN, exchanging voice and/or data with the RAN.
  • the terminal equipment may include wireless terminal equipment, mobile terminal equipment, D2D terminal equipment, V2X terminal equipment, machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of Things ( internet of things, IoT) terminal equipment, subscriber unit, subscriber station, mobile station, remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, or user equipment, etc.
  • IoT Internet of Things
  • mobile telephones also known as "cellular" telephones, computers with mobile terminal equipment, portable, pocket-sized, hand-held, computer-embedded mobile devices, etc.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • PDA tablet computer
  • PCS personal communication service
  • VR virtual reality
  • AR augmented reality
  • It can also include wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, and transportation security.
  • Wireless terminals in transportation safety
  • wireless terminals in smart cities wireless terminals in smart homes
  • in-vehicle terminals RSUs with terminal functions, etc.
  • It may also be an in-vehicle module, an in-vehicle module, an in-vehicle component, an in-vehicle chip, or an in-vehicle unit built into the vehicle as one or more components or units.
  • Restricted devices may also be included, such as devices with lower power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities, etc.
  • it includes information sensing devices such as barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), and laser scanners.
  • RFID radio frequency identification
  • GPS global positioning system
  • the device for realizing the terminal function may be a terminal device, or a device that can support the terminal device to realize the function, such as a chip system or a combined device or component that can realize the function of the terminal device. installed in the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices. Taking the device for realizing the terminal function as a terminal device as an example, the technical solutions provided by the present application are introduced, but not limited.
  • the above-mentioned network device may be a node or device that accesses a terminal device to a wireless network, and may also be referred to as a base station, including but not limited to: a new generation base station (generation Node B, gNB), an evolved Node B ( evolved node B (eNB), radio network controller (RNC), node B (NB), base station controller (BSC), base transceiver station (BTS), Home base station ((home evolved nodeB, HeNB) or (home node B, HNB)), baseband unit (baseBand unit, BBU), transmitting and receiving point (TRP), transmitting point (transmitting point, TP), or mobile switching center, etc.
  • a new generation base station generation Node B, gNB
  • an evolved Node B evolved node B
  • RNC radio network controller
  • NB node B
  • BSC base station controller
  • BTS base transceiver station
  • BTS base transceiver station
  • Home base station ((home evolved node
  • the device for realizing the function of the network device may be a network device, or a device capable of supporting the network device to realize the function, such as a chip system or a combined device or component that can realize the function of the network device. Can be installed in network equipment.
  • the technical solution provided by this application is introduced by taking the device for realizing the function of the network device as a network device as an example, but it is not limited.
  • the interface between the network device and the terminal device may be a Uu interface, also called an "air interface".
  • the names of these interfaces may remain unchanged, or may be replaced with other names, which are not limited in this application.
  • the communication between the network device and the terminal device follows a certain protocol layer structure.
  • the control plane protocol layer structure may include an RRC layer, a packet data convergence layer protocol (packet data convergence protocol, PDCP) layer, and a radio link control layer. (radio link control, RLC) layer, medium access control (mediu access control, MAC) layer and physical (physical, PHY) layer.
  • the user plane protocol layer structure may include a PDCP layer, an RLC layer, a MAC layer, and a physical layer.
  • the PDCP layer may also include a service data adaptation protocol (SDAP) layer.
  • SDAP service data adaptation protocol
  • a network device may implement the functions of the above-mentioned protocol layers such as RRC, PDCP, RLC, and MAC by one node, or may implement the functions of these protocol layers by multiple nodes.
  • a network device may include one or more centralized units (centralized units, CUs) and one or more distributed units (distributed units, DUs), and multiple DUs may be centrally controlled by one CU.
  • the interface between the CU and the DU may be referred to as the F1 interface.
  • the control plane (control panel, CP) interface may be F1-C
  • the user plane (user panel, UP) interface may be F1-U.
  • CU and DU can be divided according to the protocol layer of the wireless network.
  • the functions of the PDCP layer and the above protocol layers are set in the CU, and the functions of the protocol layers below the PDCP layer (for example, the RLC layer and the MAC layer, etc.) are set in the DU.
  • the above division of the processing functions of the CU and DU according to the protocol layer is only an example, and can also be divided in other ways, for example, the functions of the protocol layer above the RLC layer are set in the CU, and the RLC layer and the following protocol layers.
  • the function of the CU is set in the DU.
  • the CU or DU can be divided into functions with more protocol layers.
  • the CU or DU can also be divided into partial processing functions with protocol layers. In one design, some functions of the RLC layer and functions of the protocol layers above the RLC layer are placed in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are placed in the DU.
  • the functions of the CU or DU can also be divided according to the service type or other system requirements, for example, by the delay, the functions whose processing time needs to meet the delay requirements are set in the DU, and do not need to meet the delay.
  • the required functionality is set in the CU.
  • the CU may also have one or more functions of the core network.
  • the CU can be set on the network side to facilitate centralized management; the DU can have multiple radio functions, or the radio functions can be set remotely. This embodiment of the present application does not limit this.
  • the functions of the CU may be implemented by one entity, or may also be implemented by different entities.
  • the functions of the CU can be further divided, for example, the control plane and the user plane can be separated and implemented by different entities, namely the control plane CU entity, such as the CU-CP entity, and the user plane CU entity.
  • entities such as CU-UP entities.
  • the CU-CP entity and the CU-UP entity can be coupled with the DU to jointly complete the function of the network device.
  • the interface between the CU-CP entity and the CU-UP entity may be the E1 interface
  • the interface between the CU-CP entity and the DU may be the F1-C interface
  • the interface between the CU-UP entity and the DU may be the F1-U interface interface.
  • one DU and one CU-UP can be connected to one CU-CP.
  • one DU can be connected to multiple CU-UPs
  • one CU-UP can be connected to multiple DUs.
  • the signaling generated by the CU may be sent to the terminal device through the DU, or the signaling generated by the terminal device may be sent to the CU through the DU.
  • the DU may not parse the signaling, but directly encapsulate it through the protocol layer and transparently transmit it to the terminal device or CU.
  • the signaling of the RRC or PDCP layer will eventually be processed as the data of the physical layer and sent to the terminal device, or converted from the received data of the physical layer.
  • the signaling of the RRC or PDCP layer can also be considered to be sent by the DU, or sent by the DU and the radio frequency device.
  • the communication method provided by the embodiment of the present application may be applicable to the communication of any two network devices shown in FIG. 1 , and the specific implementation may refer to the following method embodiments, which will not be repeated here.
  • FIG. 1 is only a simplified schematic diagram for easy understanding, and the communication system may further include other network devices and/or other terminal devices, which are not shown in FIG. 1 .
  • FIG. 4 is a first schematic flowchart of a communication method provided by an embodiment of the present application.
  • the communication method can be applied to any two network devices shown in FIG. 1 , such as the communication between the first network device and the second network device.
  • the communication method includes the following steps:
  • the first network device sends a first request message to the second network device.
  • the first network device and the second network device may be different network devices.
  • the first network device may be a network device where the terminal device currently resides
  • the second network device may be a network device where the terminal device historically resides, such as an anchor network device of the terminal device.
  • the anchor network device is the network device that releases the terminal device to the inactive state, or is the network device to which the last cell resides before the terminal device enters the inactive state, and stores the context of the terminal device. That is, the terminal device first camps on the cell of the second network device, then switches to the first network device through inter-station cell reselection, and camps on the cell of the first network device.
  • the first request message may be a context recovery request (retrieve UE context request) message, which may be used to request the context of the terminal device, and the context may include the data transmission policy of the terminal device.
  • the terminal device is in an inactive state.
  • the terminal device referred to later in this application generally refers to a terminal device in an inactive state without special description. For example, sending a message by a terminal device means that the terminal device sends the message in an inactive state.
  • the terminal device may send a first RRC recovery request message to the first network device, so as to realize data transmission in an inactive state.
  • the terminal device may package the first RRC recovery request message and the first data to generate a protocol data unit (PDU) of the MAC layer, and send it to the first network device through the physical layer, or the first data may also be sent to the first network device through the physical layer. It can be included in the first RRC recovery request message to realize data transmission.
  • PDU protocol data unit
  • the first data may be small data (small data, SD), such as data radio bearer (DRB) data, or data of a signaling radio bearer (signaling radio bearer, SRB) whose data volume does not exceed a data threshold .
  • the first RRC recovery request message may include a first inactive radio network temporary identifier (inactive-radio network temporary identifier, I-RNTI).
  • I-RNTI active-radio network temporary identifier
  • the first I-RNTI may be allocated by the second network device for the terminal device, corresponds to the context of the terminal device, and indicates that the context is stored in the second network device. In this way, after receiving the first RRC recovery request message from the terminal device, the first network device can send the above context recovery request message to the second network device according to the first I-RNTI.
  • the sending of the first RRC recovery request message by the terminal device is only an example, and is not intended to be limiting.
  • the terminal device may also send non-access stratum (non-access stratum, NAS) messages.
  • NAS non-access stratum
  • the first network device receives a first response message from the second network device.
  • the first response message may be a context recovery response (retrieve UE context response) message, or may also be a context recovery failure (retrieve UE context failure) message.
  • a context recovery response for example, if the second network device determines that the anchor network device can be switched to the first network device, it can send a context recovery response message. If the second network device determines that the anchor network device cannot be switched to the first network device, it may send a context recovery failure message.
  • the first response message may include the complete context of the terminal device, such as the data transmission policy of the terminal device, and one or more of the following configurations of the terminal device: SDAP configuration, PDCP configuration, RLC configuration, or radio bearer (radio bearer, RB) configuration, etc.
  • the first response message may only include, but not limited to, the data transmission policy of the terminal device, and may also include part of the context of the terminal device, such as the RLC configuration of the terminal device.
  • the data transmission policy may be used to indicate the transmission mode of various types of data of the terminal device, and may be a policy obtained by the first network device from the terminal device when the terminal device resides on the first network device, including the data of the terminal device and the terminal device. The correspondence between the wireless resources of the device.
  • the above-mentioned corresponding relationship may be a corresponding relationship between the above-mentioned data type and the above-mentioned wireless resource identifier.
  • the type may include SD and non-small data (N-SD)
  • the radio resource may include one or more of the following: radio bearer, such as DRB, or SRB, radio link control channel (radio link control channel) link control channel, RLCC), or logical channel (logical channel, LC).
  • radio bearer such as DRB, or SRB
  • radio link control channel radio link control channel (radio link control channel) link control channel, RLCC), or logical channel (logical channel, LC).
  • the number of logical channels may be one or more, and multiple logical channels may also be referred to as logical channel groups (logical channel group, LCG).
  • the above-mentioned correspondence may include the correspondence between SD and the identifiers of the one or more first radio resources, and/or include the correspondence between N-SD and the identifiers of the one or more second radio resources.
  • an example is introduced below.
  • the above-mentioned wireless resources as a whole include the above-mentioned first wireless resources and the above-mentioned second wireless resources
  • the identifiers of the remaining wireless resources such as the identifiers of the second wireless resources It can correspond to N-SD.
  • the identifiers of the remaining radio resources such as the identifier of the first radio resource
  • the identifiers of the remaining radio resources are convenient for SD correspondence. That is to say, when one of the corresponding relationships is determined, the other corresponding relationship is determined accordingly.
  • the first network device can configure only one of the corresponding relationships, for example, only configure the corresponding relationship between the N-SD and the identifiers of the above-mentioned one or more second wireless resources, so as to save the storage space of the first network device and optimize the resources configuration to provide operational efficiency.
  • the correspondence between SD and the identifiers of the one or more first radio resources may include one or more of the following: the correspondence between SD and RB1, the correspondence between SD and RLCC1, the correspondence between SD and LC1-LC5
  • the corresponding relationship of , or the corresponding relationship between SD and LCG1 (LCG1 includes LC1-LC5).
  • the corresponding relationship between N-SD and the above-mentioned one or more second radio resources may include: the corresponding relationship between N-SD and RB2, the corresponding relationship between N-SD and RLCC2, the corresponding relationship between N-SD and LC6-LC10 Correspondence, or the correspondence between N-SD and LCG2 (LCG2 includes LC6-LC10).
  • the above-mentioned correspondence may be a correspondence between the above-mentioned data transmission mode and the above-mentioned identifier of the wireless resource.
  • the transmission mode may include SDT and N-SDT.
  • the above-mentioned correspondence may include the correspondence between the SDT and the above-mentioned one or more first wireless resources, and the correspondence between the N-SDT and the above-mentioned one or more identifiers of the second wireless resources.
  • the above examples will continue to be introduced below.
  • the corresponding relationship between SDT and the identifier of the one or more first radio resources may include one or more of the following: the corresponding relationship between SDT and RB1, the corresponding relationship between SDT and RLCC1, and the corresponding relationship between SDT and LC1-LC5 The corresponding relationship of , or the corresponding relationship between SDT and LCG1.
  • the corresponding relationship between N-SDT and the above one or more second radio resources may include: the corresponding relationship between N-SDT and RB2, the corresponding relationship between N-SDT and RLCC2, the corresponding relationship between N-SDT and LC6-LC10 Correspondence, or the correspondence between N-SDT and LCG2.
  • the wireless resources may include the above-mentioned multiple wireless resources
  • the first network device can also determine the type of data of the terminal device according to the corresponding relationship. arrival, so that the first network device can cooperate with the terminal device to complete the random access procedure in time to enter the connected state, thereby improving communication efficiency.
  • the second network device may send the first response message to the first network device.
  • the first network device can receive the first response message from the second network device, and obtain the above-mentioned data transmission strategy in the first response message, so that the first network device can complete the transmission in time with the terminal device according to the data transmission strategy.
  • data For example, if there is data to be transmitted on the terminal device, such as the second data, the terminal device can notify the first network device of the wireless resource corresponding to the second data according to the corresponding relationship, so that the first network device can determine the first network device according to the corresponding relationship.
  • Second data such as determining whether the type of the second data is SD or N-SD, or determining whether the transmission mode of the second data is SDT or N-SDT.
  • the first network device can cooperate with the terminal device to complete the random access process in time and enter the connected state, thereby transmitting the second data in time, thereby reducing the data transmission delay and improving the communication efficiency.
  • the first network device and the terminal device cooperate to complete the random access procedure, reference may be made to the relevant introduction in the following first implementation scenario, which will not be repeated here.
  • the method shown in FIG. 4 may further include: receiving the first indication information from the terminal device, and according to the first indication information, and send the first RRC recovery message to the terminal device.
  • the first indication information may be used to indicate the above-mentioned wireless resource of the terminal device, for example, the wireless resource is indicated by carrying an identifier of the wireless resource, so as to indicate the second data to be transmitted by the terminal device.
  • the first indication information may be an RRC message, such as an RRC recovery request message, which is not limited.
  • the first RRC recovery message may be a message sent by the first network device to perform a random access procedure, and is used to instruct the terminal device to recover the connected state.
  • the terminal device can determine the radio resource corresponding to the second data, so as to carry the identifier of the radio resource in the first indication information.
  • the terminal device may first determine the type of the second data, and then determine the identifier of the corresponding wireless resource in the above-mentioned correspondence according to the type.
  • the terminal device may first determine the transmission method of the second data, and then determine the identifier of the corresponding wireless resource in the above-mentioned correspondence according to the transmission method.
  • the above examples will continue to be introduced below.
  • the terminal device may determine that the above identifier includes one or more of the following according to the type: RB1, RLCC1, LC1-LC5, or LCG1, and carry it into the first indication information .
  • the terminal device may determine that the above identifier includes one or more of the following according to the type being N-SD: RB2, RLCC2, LC6-LC10, or LCG2, and carry it to the first in an instruction message.
  • the terminal device may determine that the above identifier includes one or more of the following according to the transmission mode is SDT: RB1, RLCC1, LC1-LC5, or LCG1, and carry it to the first in the instructions.
  • the terminal device may determine that the above identifier includes one or more of the following according to the transmission mode N-SDT: RB2, RLCC2, LC6-LC10, or LCG2, and carry into the first indication information.
  • the terminal device may send the above-mentioned first indication information to the first network device.
  • the first network device may receive the first indication information from the terminal device.
  • the first network device may, according to the wireless resource indicated by the first indication information, for example, according to the identifier of the wireless resource in the first indication information, determine the above-mentioned transmission mode or type corresponding to the identifier in the above-mentioned correspondence, so as to Transmission mode or type, perform random access procedure, such as performing SDT procedure, or perform N-SDT procedure. They are introduced separately below.
  • the SDT process may be executed.
  • the first network device can receive the SD from the terminal device, and send the SD to a core network element, such as an access and mobility management function (AMF) network element, so as to complete the SDT process.
  • a core network element such as an access and mobility management function (AMF) network element
  • the terminal device may continue to send an RRC message carrying the SD to the first network device, such as sending a second RRC recovery request message.
  • the first network device receives the second RRC recovery request message, it can send the SD to the core network element, thereby completing the SDT process.
  • SD may also be carried in the above-mentioned first indication information. That is to say, the terminal device may send the first indication information and the SD together. In this way, if the first network device determines to execute the SDT process, it can send the SD to the core network element in time, so as to further reduce the data transmission delay and improve the communication efficiency.
  • the N-SDT process may be performed.
  • the first network device may send a first RRC recovery message to the terminal device, so that the terminal device can recover the connected state from the inactive state according to the first RRC recovery message, restore the RRC connection with the first network device, and send the first RRC recovery message to the first network device.
  • a network device sends N-SD.
  • the first RRC recovery message may be a message received after it is determined that the N-SDT procedure is performed. For example, if the first network device determines to execute the N-SDT process, it may send the second request message to the second network device.
  • the second request message may be used to request the terminal device to restore the connection state, for example, including the above-mentioned first indication information.
  • the second network device may instruct the terminal device to restore the connection state, such as sending a second response message to the first network device.
  • the second response message may include the above-mentioned first RRC recovery message to instruct the terminal device to resume the connected state. In this way, if the first network device receives the second response message from the second network device, it can send the first RRC recovery message in the second response message to the terminal device.
  • the first RRC recovery message may be a message received before it is determined to perform the N-SDT procedure.
  • the above-mentioned first response message may include the first RRC recovery message. That is, before the terminal device acquires the second data, the second network device sends the first RRC recovery message to the first network device in advance. In this way, the first network device can send the first RRC recovery message to the terminal device in a timely manner, so that the terminal device can receive the first RRC recovery message faster, thereby recovering the connected state more quickly, so as to further reduce the data transmission delay , to further improve communication efficiency.
  • the second network device may be the anchor network device of the terminal device, the second network device can accurately determine whether the terminal device needs to restore the connection state, thereby avoiding data transmission errors due to misjudgment by the first network device, Thus, the reliability of data transmission can be improved.
  • the first RRC recovery message is a message generated by the second network device, rather than a message generated by the first network device.
  • the second network device can be prevented from sending the configuration information required for generating the first RRC recovery message to the first network device, so as to reduce the risk of leakage of the configuration information, thereby improving network security.
  • FIG. 5 is a schematic flowchart of the communication method shown in FIG. 4 in a first application scenario.
  • the UE is the above-mentioned terminal equipment
  • the first gNB is the above-mentioned first network equipment
  • the second gNB is the above-mentioned second network equipment.
  • the equipment suitable for the first application scenario may also include one or more of the following: a UPF network element, an AMF network element, and a policy control function (PCF) network element (Fig.
  • PCF policy control function
  • a session management function (SMF) network element (not shown in Figure 5), a session management function (SMF) network element (not shown in Figure 5), a unified data repository (unified data repository, UDR) network element (not shown in Figure 5), Unified data management (unified data management, UDM) network element (not shown in FIG. 5 ), etc.
  • the AMF network element can also be replaced with a mobility management entity (mobility management entity, MME) network element, and the UPF network element can also be replaced with a serving gateway (serving gateway, S-GW) network element, which is not limited. .
  • the communication method may include:
  • the second gNB sends a first RRC release message to the UE.
  • the first RRC release message may carry the above-mentioned first I-RNTI, and the second gNB is the anchor network device of the UE.
  • the UE is released from the connected state to the inactive state.
  • the UE may be released from the connected state to the inactive state according to the first RRC release message, and retain the context of the UE itself.
  • the UE reselects from the cell of the second gNB to the cell of the first gNB.
  • the UE may reselect from the cell of the second gNB to the cell of the first gNB and continue to maintain the inactive state.
  • the UE sends a first RRC recovery request message to the first gNB.
  • the UE may send a first RRC recovery request message to the first gNB according to the context of the UE itself.
  • the first RRC recovery request message may carry the SD and the first I-RNTI.
  • the first gNB sends a context recovery request message to the second gNB.
  • the first gNB may obtain the above-mentioned SD and the above-mentioned first I-RNTI carried in the context recovery request message. In this way, the first gNB can determine that the anchor point network device of the UE is the second gNB according to the first I-RNTI, so as to send a context recovery request message to the second gNB.
  • the second gNB sends a context recovery response message to the first gNB.
  • the context recovery response message may carry the correspondence between UE data and radio resources.
  • S505 and S506 reference may be made to the relevant introductions in S401 and S402 above, which will not be repeated here.
  • the first gNB sends a path switch request (path switch request) message to the AMF network element.
  • the AMF network element modifies the bearer of the UE on the UPF network element.
  • the AMF network element can modify the UE bearer on the UPF network element from "UE ⁇ second gNB ⁇ UPF network element" to "UE ⁇ first gNB ⁇ UPF network element” according to the path switching request message.
  • the AMF network element sends a path switch request ACK (path switch request ACK) message to the first gNB.
  • path switch request ACK path switch request ACK
  • the first gNB sends SD to the UPF network element.
  • the first gNB can determine that the above-mentioned bearer modification is successful according to the above-mentioned path switching request confirmation message, the first gNB can send the above-mentioned SD to the UPF network element, thereby completing the SDT process in the inactive state.
  • the above S507-S510 are optional processes.
  • the context recovery response message carries the complete context of the UE, it means that the UE's anchor network device is switched from the second gNB to the first gNB.
  • the first gNB may perform S507-S510.
  • the context recovery response message only carries part of the context of the UE, or does not carry the context of the UE, it means that the anchor network device of the UE is still the second gNB. In this way, the first gNB may not perform S507-S510, and send the above-mentioned SD to the second gNB.
  • the UE sends first indication information to the first gNB.
  • the UE may send the first indication information to the first gNB, so that the first gNB can determine to execute the N-SDT process according to the first indication information.
  • the first gNB may send the first indication information to the first gNB, so that the first gNB can determine to execute the N-SDT process according to the first indication information.
  • S511 and S505-S510 are not limited.
  • the first gNB sends a second request message to the second gNB.
  • the second gNB sends a second response message to the first gNB.
  • the second response message includes the first RRC recovery message.
  • S512-S513 reference may be made to the relevant introduction in S402, which is not repeated here.
  • the first gNB sends the first RRC recovery message to the UE.
  • the UE restores the connected state from the inactive state.
  • the UE may restore the connected state from the inactive state according to the first RRC restoration message, thereby restoring the RRC connection with the first gNB.
  • the UE sends the N-SD to the first gNB.
  • the UE may send the N-SD to the first gNB in the connected state.
  • the first gNB sends the N-SD to the UPF network element.
  • the first gNB completes the N-SDT process.
  • FIG. 6 is a schematic flowchart of the communication method shown in FIG. 4 in a second application scenario.
  • the UE is the above-mentioned terminal equipment
  • the first gNB is the above-mentioned first network equipment
  • the second gNB is the above-mentioned second network equipment.
  • devices suitable for the second application scenario may also include one or more of the following: UPF network element, AMF network element, PCF network element (not shown in FIG. 6 ), SMF network element element (not shown in FIG. 6 ), UDR network element (not shown in FIG. 6 ), UDM network element (not shown in FIG. 6 ), and the like.
  • the AMF network element can also be replaced with an MME network element correspondingly
  • the UPF network element can also be replaced with an S-GW network element correspondingly, which is not limited.
  • the communication method may include:
  • the second gNB sends a first RRC release message to the UE.
  • the UE is released from the connected state to the inactive state.
  • the UE reselects from the cell of the second gNB to the cell of the first gNB.
  • the UE sends a first RRC recovery request message to the first gNB.
  • the first gNB sends a context recovery request message to the second gNB.
  • the second gNB sends a context recovery response message to the first gNB.
  • the context recovery response message may not only carry the correspondence between UE data and radio resources, but also carry the above-mentioned first RRC recovery message.
  • S601-S604 reference may be made to the relevant introductions in the foregoing S501-S504, and for the specific implementations of S605 and S606, reference may be made to the relevant introductions in the foregoing S401 and S402, which will not be repeated here.
  • the first gNB sends a path switching request message to the AMF network element.
  • the AMF network element modifies the bearer of the UE on the UPF network element.
  • the AMF network element sends a path switching request confirmation message to the first gNB.
  • the first gNB sends SD to the UPF network element.
  • the UE sends the first indication information to the first gNB.
  • the UE may send the first indication information to the first gNB, so that the first gNB can determine to execute the N-SDT process according to the first indication information.
  • the execution order between S611 and S605-S610 is also not limited.
  • the first gNB sends a first RRC recovery message to the UE.
  • the first gNB since the first gNB can obtain the above-mentioned first RRC recovery message when performing the process of S606, then if the first gNB determines to perform the N-SDT process, it can send the first RRC recovery message to the UE in time.
  • the UE restores the connected state from the inactive state.
  • the UE sends the N-SD to the first gNB.
  • the first gNB sends the N-SD to the UPF network element.
  • the second network device can configure the data transmission policy of the terminal device for the first network device, after the terminal device triggers the random access procedure, the first network device will The network device can then send the data of the terminal device in time according to the data transmission strategy, so that the random access process can be completed in time and the connection state can be entered in time, thereby reducing the data transmission delay and improving the communication efficiency.
  • the communication method provided by the embodiment of the present application has been described in detail above with reference to FIG. 4 to FIG. 6 .
  • a communication apparatus for executing the communication method provided by the embodiments of the present application will be described in detail below with reference to FIGS. 7 to 8 .
  • FIG. 7 is a first structural schematic diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication apparatus 700 includes: a receiving module 701 and a sending module 702 .
  • FIG. 7 only shows the main components of the communication device.
  • the communication apparatus 700 may be applied to the communication system shown in FIG. 1 to perform the function of the first network device in the communication method shown in FIG. 4 , or to perform the function shown in FIG. 5 or FIG. 6 . function of the first gNB in the proposed communication method.
  • the sending module 702 is configured to send the first request message to the second network device.
  • the receiving module 701 is configured to receive the first response message from the second network device.
  • the first request message is used to request the data transmission policy of the terminal device.
  • the terminal device is in an inactive state and resides in the first network device.
  • the first response message includes the data transmission policy.
  • the data transmission strategy may include: a correspondence between the data of the terminal device and the wireless resources of the terminal device.
  • the radio resources may include one or more of the following: radio bearers, radio link control RLC channels, or logical channels.
  • the above communication apparatus 700 may further include: a processing module 703 (shown by a dotted box in FIG. 7 ).
  • the receiving module 701 is further configured to receive the first indication information from the terminal device.
  • the first indication information may be used to indicate the radio resources of the terminal device.
  • the processing module 703 is configured to control the sending module 702 to send the first radio resource control RRC recovery message to the terminal device according to the first indication information.
  • the sending module 702 is further configured to send the second request message to the second network device before the sending module 702 sends the first RRC recovery message to the terminal device.
  • the receiving module 701 is further configured to receive a second response message from the second network device.
  • the second request message may be used to request the terminal device to restore the connection state
  • the second response message may be used to instruct the terminal device to restore the connection state.
  • the second response message may include the first RRC recovery message.
  • the first response message may include a first RRC recovery message.
  • the receiving module 701 and the sending module 702 may also be integrated into one module, such as a transceiver module (not shown in FIG. 7 ).
  • the transceiver module is used to implement the sending function and the receiving function of the communication device 700 .
  • the communication apparatus 700 may further include a storage module (not shown in FIG. 7 ), where the storage module stores programs or instructions.
  • the communication apparatus 700 can execute the function of the first network device in the communication method shown in FIG. 4 , or execute the first gNB in the communication method shown in FIG. 5 or FIG. 6 . function.
  • the processing module 701 involved in the communication device 700 may be implemented by a processor or a processor-related circuit component, and may be a processor or a processing unit;
  • the transceiver module 702 may be implemented by a transceiver or a transceiver-related circuit component, and may be a transceiver module Receiver or Transceiver Unit.
  • the communication device 700 may be a network device, a chip (system) or other components or components that can be provided in the network device, or a device including a network device, which is not limited in this application.
  • the communication apparatus 700 may be applied to the communication system shown in FIG. 1 to perform the function of the second network device in the communication method shown in FIG. 4 , or to perform the function shown in FIG. 5 or FIG. 6 . function of the second gNB in the proposed communication method.
  • the receiving module 701 is configured to receive a first request message from a first network device.
  • the sending module 702 is configured to send a first response message to the first network device.
  • the first request message is used to request the data transmission policy of the terminal device.
  • the terminal device is in an inactive state and resides in the first network device.
  • the first response message includes the data transmission policy.
  • the data transmission strategy may include: the correspondence between the data of the terminal device and the wireless resources of the terminal device.
  • the radio resources may include one or more of the following: radio bearers, radio link control RLC channels, or logical channels.
  • the receiving module 701 is further configured to receive the second request message from the first network device.
  • the sending module 702 is further configured to send a second response message to the first network device.
  • the second request message may be used to request the terminal device to restore the connection state, and the second response message may be used to instruct the terminal device to restore the connection state.
  • the second response message may include the first RRC recovery message.
  • the first response message may include a first RRC recovery message.
  • the receiving module 701 and the sending module 702 may also be integrated into one module, such as a transceiver module (not shown in FIG. 7 ).
  • the transceiver module is used to implement the sending function and the receiving function of the communication device 700 .
  • the communication apparatus 700 may further include a processing module 703 (shown in a dotted box in FIG. 7 ).
  • the processing module 703 is used to implement the processing function of the communication device 700 .
  • the communication apparatus 700 may further include a storage module (not shown in FIG. 7 ), where the storage module stores programs or instructions.
  • the communication apparatus 700 can perform the function of the second network device in the communication method shown in FIG. 4 , or execute the second gNB in the communication method shown in FIG. 5 or FIG. 6 . function.
  • the processing module 703 involved in the communication apparatus 700 may be implemented by a processor or a processor-related circuit component, and may be a processor or a processing unit;
  • the transceiver module may be implemented by a transceiver or a transceiver-related circuit component, and may be a transceiver or transceiver unit.
  • the communication device 700 may be the network device shown in FIG. 1 , or may be a chip (system) or other components or components provided in the above-mentioned network device, or an apparatus including the network device. The embodiment does not limit this.
  • the processing module 703 involved in the communication apparatus 700 may be implemented by a processor or a processor-related circuit component, and may be a processor or a processing unit;
  • the transceiver module may be implemented by a transceiver or a transceiver-related circuit component, and may be a transceiver or a Transceiver unit.
  • FIG. 8 is a second schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication device may be a network device, or may be a chip (system) or other components or assemblies that can be provided in the network device.
  • the communication apparatus 800 may include a processor 801 .
  • the communication apparatus 800 may further include a memory 802 and/or a transceiver 803 .
  • the processor 801 is coupled with the memory 802 and the transceiver 803, such as can be connected through a communication bus.
  • the processor 801 is the control center of the communication device 800, which may be one processor, or may be a general term for multiple processing elements.
  • the processor 801 is one or more central processing units (CPUs), may also be a specific integrated circuit (application specific integrated circuit, ASIC), or is configured to implement one or more of the embodiments of the present application
  • An integrated circuit such as: one or more microprocessors (digital signal processor, DSP), or, one or more field programmable gate array (field programmable gate array, FPGA).
  • the processor 801 may execute various functions of the communication device 800 by running or executing software programs stored in the memory 802 and calling data stored in the memory 802 .
  • the processor 801 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 8 .
  • the communication apparatus 800 may also include multiple processors, for example, the processor 801 and the processor 804 shown in FIG. 8 .
  • processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU).
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • the memory 802 is used to store the software program for executing the solution of the present application, and is controlled and executed by the processor 801 .
  • the memory 802 is used to store the software program for executing the solution of the present application, and is controlled and executed by the processor 801 .
  • the processor 801 For the specific implementation, reference may be made to the above method embodiments, which will not be repeated here.
  • memory 802 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, random access memory (RAM), or a random access memory (RAM) or other type of static storage device that can store information and instructions.
  • ROM read-only memory
  • RAM random access memory
  • RAM random access memory
  • RAM random access memory
  • RAM random access memory
  • Other types of dynamic storage devices for instructions which may also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other optical disks storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage medium or other magnetic storage device, or capable of carrying or storing desired program code in the form of instructions or data structures and any other medium that can be accessed by a computer, but is not limited thereto.
  • the memory 802 may be integrated with the processor 801, or may exist independently, and be coupled to the processor 801 through an interface circuit (not shown in FIG. 8)
  • the transceiver 803 is used for communication with other communication devices.
  • the communication apparatus 800 is a terminal device, and the transceiver 803 can be used to communicate with a network device or communicate with another terminal device.
  • the communication apparatus 800 is a network device, and the transceiver 803 may be used to communicate with a terminal device or communicate with another network device.
  • the transceiver 803 may include a receiver and a transmitter (not shown separately in FIG. 8). Among them, the receiver is used to realize the receiving function, and the transmitter is used to realize the sending function.
  • the transceiver 803 may be integrated with the processor 801, or may exist independently, and be coupled to the processor 801 through an interface circuit (not shown in FIG. 8 ) of the communication device 800, which is not performed in this embodiment of the present application Specific restrictions.
  • the structure of the communication device 800 shown in FIG. 8 does not constitute a limitation of the communication device, and an actual communication device may include more or less components than those shown in the figure, or combine some components, or Different component arrangements.
  • processors in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), dedicated integrated Circuit (application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory Fetch memory
  • direct memory bus random access memory direct rambus RAM, DR RAM
  • the above embodiments may be implemented in whole or in part by software, hardware (eg, circuits), firmware, or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server or data center by wire (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that contains one or more sets of available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • At least one means one or more, and “plurality” means two or more.
  • At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • at least one item (a) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c may be single or multiple .
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne un procédé et un appareil de communication, qui peuvent résoudre le problème selon lequel il n'est pas possible de réaliser un accès aléatoire dans le temps, ce qui permet de raccourcir un retard de transmission de données et d'améliorer l'efficacité de communication, et qui peuvent être appliqués à des systèmes NR, LTE, etc. Le procédé comprend : l'envoi d'un premier message de demande à un second dispositif de réseau et la réception d'un premier message de réponse en provenance du second dispositif de réseau, le premier message de demande étant utilisé pour demander une politique de transmission de données d'un dispositif de terminal ; le dispositif de terminal étant dans un état inactif et résidant dans un premier dispositif de réseau ; et le premier message de réponse comprenant la politique de transmission de données.
PCT/CN2022/081255 2021-03-31 2022-03-16 Procédé et appareil de communication WO2022206393A1 (fr)

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CN116010127B (zh) * 2023-02-24 2023-08-29 荣耀终端有限公司 消息处理方法、设备及存储介质

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