WO2021134763A1 - Procédé, appareil et dispositif de récupération de transmission - Google Patents

Procédé, appareil et dispositif de récupération de transmission Download PDF

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Publication number
WO2021134763A1
WO2021134763A1 PCT/CN2020/070146 CN2020070146W WO2021134763A1 WO 2021134763 A1 WO2021134763 A1 WO 2021134763A1 CN 2020070146 W CN2020070146 W CN 2020070146W WO 2021134763 A1 WO2021134763 A1 WO 2021134763A1
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WO
WIPO (PCT)
Prior art keywords
communication
scg
terminal device
uplink service
recovery
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PCT/CN2020/070146
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English (en)
Chinese (zh)
Inventor
戴振华
常俊仁
贾长青
程明开
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202080048656.4A priority Critical patent/CN114073166A/zh
Priority to PCT/CN2020/070146 priority patent/WO2021134763A1/fr
Publication of WO2021134763A1 publication Critical patent/WO2021134763A1/fr

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    • 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

  • This application relates to the field of mobile communication technology, and in particular to a method, device, and equipment for resuming transmission.
  • terminal equipment can establish dual connections, that is, the terminal equipment can communicate with two base stations at the same time.
  • One of the two base stations serves as the primary base station of the terminal equipment.
  • the other serves as a secondary base station for terminal equipment.
  • the cell group provided by the primary base station may be referred to as a master cell group (MCG)
  • MCG master cell group
  • SCG secondary cell group
  • the base station can configure the terminal device to enter suspend (supend) State, for example, the main base station can configure the terminal device to enter the suspended state.
  • suspend for example, the main base station can configure the terminal device to enter the suspended state.
  • the terminal device When the terminal device is in the suspended state, it cannot communicate with MCG or SCG. But it can still detect system messages or paging messages from MCG.
  • the terminal device When the terminal device has an uplink service, it can resume communication with the MCG. It is currently under discussion that the terminal device can also resume communication with the SCG. However, after the terminal device resumes communication, it may only need to communicate with the MCG, but does not need to communicate with the SCG. In this case, it is an unnecessary process for the terminal device to resume communication with the SCG, and it also leads to a needless increase in transmission overhead.
  • the embodiments of the present application provide a method, device, and equipment for resuming transmission, which are used to save transmission overhead.
  • a first method for resuming transmission includes: determining an uplink service, wherein the communication between the terminal device and the primary cell group MCG and the communication with the secondary cell group SCG are suspended; and determining whether the uplink service passes SCG transmission; when the uplink service is transmitted through the SCG, an RRC recovery request message is sent to the main network device of the terminal device, where the RRC recovery request message is used to request the recovery of communication with the SCG.
  • the method may be executed by a first communication device, and the first communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip.
  • the first communication device is a terminal device, or a chip set in the terminal device for realizing the function of the terminal device, or other component used for realizing the function of the terminal device.
  • the first communication device is a terminal device.
  • the communication between the terminal device and the SCG is restored, and if the uplink service is not transmitted through the SCG, there is no need to restore the communication between the terminal device and the SCG. In this way, the transmission overhead caused by the recovery of the communication between the terminal device and the SCG can be reduced, and the recovery of the communication between the terminal device and the SCG is more effective.
  • determining whether the uplink service is transmitted through SCG includes:
  • a DRB belonging to the SCG may mean that the DRB uses the LCH of the SCG. Because the uplink service will be transmitted through the DRB, if the DRB used to transmit the uplink service belongs to the SCG, it can indicate that the uplink service must be transmitted through the SCG, and if the DRB used to transmit the uplink service does not belong to the SCG, it also means The uplink service does not need to be transmitted through SCG. In this way, determining whether the uplink service is transmitted through the SCG can make the determination result more accurate.
  • the data radio bearer corresponding to the identifier of the PDU session corresponding to the uplink service is a data radio bearer used to transmit the uplink service.
  • Uplink services can be transmitted through PDU sessions.
  • one uplink service can correspond to one PDU session or multiple PDU sessions.
  • Each PDU session corresponds to a corresponding DRB.
  • one uplink service can correspond to one or more DRBs.
  • the DRBs may all belong to the MCG, or all belong to the SCG, or some DRBs may belong to the MCG, and the other part of the DRBs belong to the SCG.
  • the DRB used to transmit the uplink service is the DRB that carries the PDU session corresponding to the uplink service.
  • the DRB carrying the PDU session corresponding to the uplink service is the DRB corresponding to the identifier of the PDU session corresponding to the uplink service. Because the PDU session corresponding to the uplink service can be determined by the terminal device, determining the corresponding DRB through the PDU session corresponding to the uplink service can make the determined DRB more accurate.
  • the uplink service includes an uplink service to be initiated, or includes all uplink services configured by the main network device for the terminal device.
  • the NAS layer of the terminal device can identify the uplink service to be initiated by the terminal device, and the uplink service determined by the terminal device may include the uplink service to be initiated by the terminal device; or, if the terminal device is After receiving the paging message, the NAS layer of the terminal device may not be able to identify the specific uplink service that needs to be restored.
  • the uplink service determined by the terminal device may include the network device (such as the main network device) that is owned by the terminal device. All uplink services configured to avoid missing part of the uplink services, and try to avoid some uplink services that cannot be performed because the communication with the SCG is not restored. In either case, the terminal equipment can determine the uplink service.
  • the RRC recovery request message is also used to request the recovery of communication with the MCG.
  • the RRC recovery request message sent by the terminal device can be used to request the recovery of the communication between the terminal device and the MCG, and to request the recovery of the communication between the terminal device and the SCG
  • the terminal device can also send an RRC recovery request message to the main network device.
  • the RRC recovery request message is used to request the recovery of the communication between the terminal device and the MCG, It is not used to request the resumption of communication between the terminal device and the SCG.
  • the method further includes:
  • the RRC recovery message sent by the terminal device is used to request the recovery of the communication between the terminal device and the MCG, and to request the recovery of the communication between the terminal device and the SCG
  • the RRC recovery message can be used to recover the communication between the terminal device and the MCG Communication between the terminal device and the SCG; or, if the RRC recovery request message sent by the terminal device is used to request the recovery of the communication between the terminal device and the MCG, and does not request the recovery of the communication between the terminal device and the SCG Communication, the RRC recovery message can be used to recover the communication between the terminal device and the MCG, but not to recover the communication between the terminal device and the SCG.
  • a second method for resuming transmission includes: receiving an RRC resume request message from a terminal device, where the resume request message is used to request to resume communication between the terminal device and the secondary cell group SCG, wherein, The uplink service of the terminal device is transmitted through the SCG; an RRC recovery message is sent to the terminal device, and the RRC reply message is used to recover the communication between the terminal device and the SCG.
  • the method may be executed by a first communication device, and the second communication device may be a communication device or a communication device, such as a chip, capable of supporting the communication device to implement the functions required by the method.
  • the second communication device is a network device, or a chip set in the network device for realizing the function of the network device, or other component used for realizing the function of the network device.
  • the second communication device is a network device.
  • the RRC recovery request message is also used to request the recovery of communication with the MCG.
  • the method further includes:
  • a communication device is provided, for example, the communication device is the first communication device as described above.
  • the first communication device is configured to execute the method in the foregoing first aspect or any possible implementation manner.
  • the first communication device may include a module for executing the method in the first aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module.
  • the sending module and the receiving module may be different functional modules, or may be the same functional module, but can implement different functions.
  • the first communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a terminal device.
  • the first communication device is a terminal device.
  • the transceiver module may also be implemented by a transceiver, and the processing module may also be implemented by a processor.
  • the sending module may be implemented by a transmitter
  • the receiving module may be implemented by a receiver.
  • the transmitter and the receiver may be different functional modules, or may be the same functional module, but can implement different functions.
  • the transceiver is realized by, for example, an antenna, a feeder, and a codec in the communication device.
  • the transceiver (or transmitter and receiver) is, for example, a communication interface in the chip, and the communication interface is connected to the radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • the first communication device is a terminal device, and the processing module and the transceiver module are used as examples for the introduction. among them,
  • the processing module is used to determine an uplink service, wherein the communication between the terminal equipment and the primary cell group MCG and the communication with the secondary cell group SCG are suspended;
  • the processing module is also used to determine whether the uplink service is transmitted through SCG;
  • the transceiver module is configured to send an RRC recovery request message to the primary network device of the terminal device when the processing module determines that the uplink service is transmitted through the SCG, where the RRC recovery request message is used to request recovery and the SCG communication.
  • the processing module is configured to determine whether the uplink service is transmitted through SCG in the following manner:
  • the data radio bearer corresponding to the identifier of the PDU session corresponding to the uplink service is a data radio bearer used to transmit the uplink service.
  • the uplink service includes an uplink service to be initiated, or includes all uplink services configured by the main network device for the terminal device.
  • the RRC recovery request message is also used to request the recovery of communication with the MCG.
  • the transceiver module is further configured to receive an RRC recovery message from the primary network device, and the RRC recovery message is used to recover communication with the SCG.
  • a communication device is provided, for example, the communication device is the second communication device as described above.
  • the second communication device is used to execute the method in the above-mentioned second aspect or any possible implementation manner.
  • the second communication device may include a module for executing the method in the second aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module.
  • the sending module and the receiving module may be different functional modules, or may be the same functional module, but can implement different functions.
  • the second communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a network device.
  • the second communication device is a network device
  • the network device is the main network device.
  • the transceiver module may also be implemented by a transceiver, and the processing module may also be implemented by a processor.
  • the sending module may be implemented by a transmitter
  • the receiving module may be implemented by a receiver.
  • the transmitter and the receiver may be different functional modules, or may be the same functional module, but can implement different functions.
  • the transceiver is realized by, for example, an antenna, a feeder, and a codec in the communication device.
  • the transceiver (or, transmitter and receiver) is, for example, a communication interface in the chip, and the communication interface is connected to a radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • the second communication device is continued to be a network device, and the processing module and the transceiving module are taken as examples for the introduction. among them,
  • the transceiver module is configured to receive an RRC recovery request message from a terminal device, where the recovery request message is used to request the recovery of communication between the terminal device and the secondary cell group SCG, wherein the uplink service of the terminal device passes through the SCG transmission;
  • the transceiver module is further configured to send an RRC recovery message to the terminal device, and the RRC reply message is used to recover the communication between the terminal device and the SCG.
  • the processing module is configured to determine that the recovery request message is used to request the recovery of communication between the terminal device and the secondary cell group SCG.
  • the RRC recovery request message is also used to request the recovery of communication with the MCG.
  • the transceiver module is further configured to send an RRC recovery message to the terminal device, and the RRC recovery message is used to recover communication with the SCG.
  • a communication device is provided.
  • the communication device is, for example, the first communication device as described above.
  • the communication device includes a processor.
  • it may also include a memory for storing computer instructions.
  • the processor and the memory are coupled to each other, and are used to implement the methods described in the first aspect or various possible implementation manners.
  • the first communication device may not include a memory, and the memory may be located outside the first communication device.
  • the first communication device may further include a communication interface for communicating with other devices or equipment.
  • the processor, the memory, and the communication interface are coupled with each other, and are used to implement the methods described in the first aspect or various possible implementation manners.
  • the first communication device when the processor executes the computer instructions stored in the memory, the first communication device is caused to execute the method in the foregoing first aspect or any one of the possible implementation manners.
  • the first communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a terminal device.
  • the communication interface is realized by a transceiver (or a transmitter and a receiver) in the communication device, for example, the transceiver is realized by an antenna, a feeder and a receiver in the communication device. Codec and other implementations.
  • the communication interface is, for example, an input/output interface of the chip, such as input/output pins, etc., and the communication interface is connected to the radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • a communication device is provided.
  • the communication device is, for example, the second communication device as described above.
  • the communication device includes a processor.
  • it may also include a memory for storing computer instructions.
  • the processor and the memory are coupled with each other, and are used to implement the methods described in the second aspect or various possible implementation manners.
  • the second communication device may not include a memory, and the memory may be located outside the second communication device.
  • the second communication device may further include a communication interface for communicating with other devices or equipment.
  • the processor, the memory, and the communication interface are coupled with each other, and are used to implement the methods described in the second aspect or various possible implementation manners.
  • the second communication device when the processor executes the computer instructions stored in the memory, the second communication device is caused to execute the method in the second aspect or any one of the possible implementation manners.
  • the second communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a network device, for example, the main network device.
  • the communication interface is realized by, for example, a transceiver (or transmitter and receiver) in the communication device.
  • the transceiver is realized by an antenna, a feeder, and a receiver in the communication device. Codec and other implementations.
  • the communication interface is, for example, an input/output interface of the chip, such as an input/output pin, etc., and the communication interface is connected to a radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components.
  • a communication system in a seventh aspect, includes the communication device described in the third aspect or the communication device described in the fifth aspect, and the communication device described in the fourth aspect or the communication device described in the sixth aspect. Device.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used to store computer instructions, and when the computer instructions are executed on a computer, the computer is caused to execute the first aspect or any one of the foregoing The methods described in the possible implementations.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used to store computer instructions, and when the computer instructions run on a computer, the computer executes the second aspect or any one of the above The methods described in the possible implementations.
  • a computer program product containing instructions is provided.
  • the computer program product is used to store computer instructions.
  • the computer instructions run on a computer, the computer executes the first aspect or any one of the above. The methods described in the possible implementations.
  • a computer program product containing instructions is provided.
  • the computer program product is used to store computer instructions.
  • the computer instructions run on a computer, the computer executes the second aspect or any one of the foregoing. The method described in one possible implementation.
  • Figure 1 is a schematic diagram of a transmission channel between terminal equipment, main network equipment, auxiliary network equipment, and core network equipment in a dual-connection scenario;
  • Figure 2 is a flow chart of the communication between the blind recovery terminal device and the SCG;
  • Figure 3 is a flow chart of restoring the communication between the terminal device and the SCG according to the measurement result of the SCG;
  • FIG. 4 is a schematic diagram of an application scenario of an embodiment of the application.
  • FIG. 5 is a flowchart of a method for resuming transmission according to an embodiment of the application
  • FIG. 6 is a schematic block diagram of a terminal device provided by an embodiment of the application.
  • FIG. 7 is a schematic block diagram of a main network device provided by an embodiment of this application.
  • FIG. 8 is a schematic block diagram of a communication device provided by an embodiment of this application.
  • FIG. 9 is another schematic block diagram of a communication device provided by an embodiment of the application.
  • FIG. 10 is still another schematic block diagram of a communication device provided by an embodiment of this application.
  • FIG. 11 is another schematic block diagram of a communication device provided by an embodiment of this application.
  • Terminal devices including devices that provide users with voice and/or data connectivity, specifically, include devices that provide users with voice, or include devices that provide users with data connectivity, or include devices that provide users with voice and data connectivity Sexual equipment.
  • it may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem.
  • the terminal device can communicate with the core network via a radio access network (RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN.
  • RAN radio access network
  • the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, vehicle to everything (V2X) terminal equipment , Machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, light UE, subscriber unit ( subscriber unit), subscriber station (subscriber station), mobile station (mobile station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), User terminal (user terminal), user agent (user agent), or user equipment (user device), etc.
  • UE user equipment
  • M2M/MTC Machine-to-machine/machine-type communications
  • IoT Internet of things
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, mobile devices with built-in computers, and so on.
  • PCS personal communication service
  • PCS cordless phones
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc. 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 Wait.
  • 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 a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, 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 all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be regarded as vehicle-mounted terminal equipment, for example, the vehicle-mounted terminal equipment is also called on-board unit (OBU). ).
  • OBU on-board unit
  • the terminal device may also include a relay. Or it can be understood that everything that can communicate with the base station can be regarded as a terminal device.
  • the device for realizing the function of the terminal device may be a terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system, and the device may be installed in the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the device used to implement the functions of the terminal is a terminal device as an example to describe the technical solutions provided in the embodiments of the present application.
  • Network equipment including, for example, access network (AN) equipment, such as a base station (e.g., access point), which may refer to equipment that communicates with wireless terminal equipment through one or more cells on the air interface in the access network
  • AN access network
  • a base station e.g., access point
  • V2X vehicle-to-everything
  • the base station can be used to convert the received air frame and IP packet to each other, as a router between the terminal device and the rest of the access network, where the rest of the access network can include the IP network.
  • the RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications.
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional NodeB) in a long term evolution (LTE) system or an advanced long term evolution (LTE-A).
  • NodeB evolved base station
  • LTE long term evolution
  • LTE-A advanced long term evolution
  • gNB next generation node B
  • 5G 5th generation
  • NR next generation node B
  • cloud access network cloud access network.
  • the centralized unit (CU) and distributed unit (DU) in the radio access network (Cloud RAN) system are not limited in this embodiment of the application.
  • the network equipment may also include core network equipment.
  • the core network equipment includes, for example, access and mobility management functions (AMF) or user plane functions (UPF). Because the embodiments of the present application mainly relate to access network equipment, in the following text, unless otherwise specified, the network equipment mentioned refers to the access network equipment.
  • AMF access and mobility management functions
  • UPF user plane functions
  • the device used to implement the function of the network device may be a network device, or a device capable of supporting the network device to implement the function, such as a chip system, and the device may be installed in the network device.
  • the device used to implement the functions of the network equipment is a network device as an example to describe the technical solutions provided in the embodiments of the present application.
  • the terminal device supports simultaneous access to two network devices.
  • This access method is called DC, in which one network device is the main network device and the other network device is the auxiliary network device.
  • DC This access method
  • LTE is also known as evolved universal terrestrial radio access (E-UTRA)
  • E-UTRA evolved universal terrestrial radio access
  • EN-DC EN-DC
  • the LTE network equipment is the main network equipment
  • the NR network equipment is the auxiliary network equipment.
  • NR E-UTRA dual connectivity NE-DC
  • NR network equipment is the main network equipment
  • LTE network equipment is the auxiliary network equipment.
  • MR- DC multi-RAT dual connectivity
  • At least one means one or more, and "plurality” means 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 before and after 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 .
  • first and second are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance.
  • first information and the second information are only for distinguishing different signaling, but do not indicate the difference in content, priority, sending order, or importance of the two types of information.
  • the terminal device can establish dual connections, that is, the terminal device can communicate with two network devices at the same time. Of the two network devices, one is the main network device of the terminal device, and the other is the auxiliary network device of the terminal device. .
  • the cell group provided by the primary network equipment may be referred to as MCG
  • the cell group provided by the secondary network equipment may be referred to as SCG.
  • MCG master node
  • SCG data radio bearer
  • SN secondary node
  • the network device can configure the terminal device to enter the suspended state, for example, the main network device can configure the terminal device Enter the suspended state.
  • the terminal device When the terminal device is in the suspended state, it cannot communicate with MCG or SCG. But it can still detect system messages or paging messages from MCG.
  • the terminal device When the terminal device has an uplink service, it can resume communication with the MCG.
  • the terminal device in addition to restoring the communication between the terminal device and the MCG, the communication between the terminal device and the SCG can also be restored. If the communication between the terminal device and the SCG is to be restored, for example, it can be performed in a blind recovery manner, or it can also be performed based on the evaluation of the measurement result of the SCG. Introduce separately below.
  • Fig. 2 is a flowchart of the process of blindly recovering SCG.
  • the main network device sends a message to the terminal device, and the terminal device receives the message from the main network device. This message is used to configure the terminal device to enter the suspended state.
  • the main network device can configure the terminal device to enter a suspended state to save the power consumption of the terminal device.
  • the terminal device sends an RRC resume request (RRC resume request) message to the main network device, and the main network device receives the RRC resume request message from the terminal device.
  • RRC resume request RRC resume request
  • the RRC recovery request message is used to request the recovery of the communication between the terminal device and the MCG, and to request the recovery of the communication between the terminal device and the SCG.
  • the terminal device when the terminal device has an uplink service, the terminal device initiates a process of restoring the SCG to the main network device.
  • the terminal device also initiates the process of restoring the MCG to the main network device, and the MCG restoration process will not be repeated here.
  • the main network device sends an RRC resume (RRC resume) message to the terminal device, and the terminal device receives the RRC resume message from the main network device.
  • RRC resume RRC resume
  • the RRC resume message can instruct the terminal device to resume communication with the MCG, or instruct the terminal device to resume communication with the SCG.
  • the terminal device sends an RRC resume complete (RRC resume complete) message to the main network device, and the main network device receives the RRC resume complete message from the terminal device.
  • RRC resume complete RRC resume complete
  • the terminal device After the terminal device resumes the communication with the MCG and the SCG, it can send an RRC recovery complete message to the main network device to inform the main network device that the terminal device has resumed the communication with the MCG and the SCG.
  • the terminal device will initiate the process of recovering the SCG.
  • the recovery method is based on the evaluation of the SCG measurement results.
  • FIG. 3 is a flowchart of the process of restoring the SCG based on the evaluation of the measurement result of the SCG.
  • the main network device sends a message to the terminal device, and the terminal device receives the message from the main network device. This message is used to configure the terminal device to enter the suspended state.
  • the terminal device determines whether to resume communication with the SCG according to the measurement result of the SCG.
  • the terminal device can still receive the reference signal from the SCG.
  • the reference signal is, for example, a synchronization signal block (synchronization signal block, SSB) or a channel state information reference signal (channel state information-reference signal, CSI-RS). )Wait.
  • the terminal device measures the received reference signal and can obtain the measurement result.
  • the measurement result is, for example, reference signal receiving power (RSRP) or reference signal receiving quality (RSRQ).
  • the terminal device can determine whether to resume communication with the SCG based on the measurement result. For example, if the measurement result is greater than the threshold, the terminal device may determine to resume communication with the SCG; or, if the measurement result is less than or equal to the threshold, the terminal device may determine not to resume communication with the SCG.
  • the terminal device sends an RRC recovery request message to the main network device, and the main network device receives the RRC recovery request message from the terminal device.
  • the RRC resume request message is used to request to resume the communication between the terminal device and the MCG; or, if the terminal device determines to resume the communication with the SCG in S32, Then the RRC recovery request message is used to request the recovery of the communication between the terminal device and the MCG, and to request the recovery of the communication between the terminal device and the SCG.
  • the terminal device when the terminal device has an uplink service, the terminal device initiates a process of restoring MCG to the main network device, or initiates a process of restoring MCG and SCG.
  • the main network device sends an RRC recovery message to the terminal device, and the terminal device receives the RRC recovery message from the main network device.
  • the RRC recovery message in S33 may instruct the terminal device to resume communication with the MCG; or, if the RRC recovery request message in S33 is used for Request to resume the communication between the terminal equipment and the MCG and the SCG, then the RRC recovery message can indicate the terminal equipment
  • the terminal device sends an RRC recovery complete message to the main network device, and the main network device receives the RRC recovery complete message from the terminal device. Resume communication with MCG and SCG.
  • the terminal device After the terminal device resumes communication with the MCG, it can send an RRC recovery complete message to the main network device to inform the main network device that the terminal device has resumed communication with the MCG; or, the terminal device is resuming communication with the MCG and SCG After the communication between them, an RRC recovery complete message can be sent to the main network device to inform the main network device that the terminal device has resumed communication with the MCG and SCG.
  • the two methods for restoring the communication between the terminal device and the SCG are introduced as above, and no matter which method is used, certain transmission resources are required. And if it is a recovery method based on the evaluation of the measurement result of the SCG, the terminal device also needs to measure the SCG, which is more expensive for the terminal device.
  • the terminal device may only need to communicate with the MCG, but does not need to communicate with the SCG. If this is the case, it is an unnecessary process for the terminal device to resume communication with the SCG, and the transmission overhead caused by resuming the communication with the SCG is an invalid overhead, which wastes transmission resources.
  • the technical solutions of the embodiments of the present application are provided.
  • the communication between the terminal device and the SCG is restored, and if the uplink service is not transmitted through the SCG, there is no need to restore the communication between the terminal device and the SCG. In this way, the transmission overhead caused by the recovery of the communication between the terminal device and the SCG can be reduced, and the recovery of the communication between the terminal device and the SCG is more effective.
  • the technical solutions provided in the embodiments of this application can be applied to the 4th generation (4G) mobile communication technology (the 4th generation, 4G) system, such as the LTE system, or can be applied to the 5G system, such as the NR system, or can also be applied to the next generation
  • 4G 4th generation
  • the 4th generation, 4G such as the LTE system
  • 5G system such as the NR system
  • the next generation For mobile communication systems or other similar communication systems, as long as there is one entity that can conduct business with another entity, there is no specific limitation.
  • the air interface communication process between the network device and the terminal device is taken as an example.
  • the technical solution provided by the embodiment of this application can also be applied to a sidelink (SL). As long as one terminal device can conduct business with another terminal device.
  • SL sidelink
  • the technical solutions provided by the embodiments of this application can be applied to device-to-device (D2D) scenarios, can be NR D2D scenarios, LTE D2D scenarios, etc., or can be applied to vehicle-to-everything (vehicle to everything) scenarios.
  • everything (V2X) scenario it can be NR V2X scenario or LTE V2X scenario, etc., for example, it can be applied to the Internet of Vehicles, such as V2X, LTE-V, vehicle-to-vehicle (V2V), etc., or can be used for Intelligent driving, intelligent networked vehicles and other fields.
  • FIG. 4 is an application scenario of an embodiment of this application.
  • Figure 4 includes network equipment 1 and network equipment 2. Both network equipment 1 and network equipment 2 serve the terminal equipment through wireless transmission.
  • the terminal device has established a connection with both the network device 1 and the network device 2.
  • the network device 1 is the main network device of the terminal device
  • the network device 2 is the auxiliary network device of the terminal device.
  • the network device 1 and the network device 2 in FIG. 4 are, for example, base stations.
  • the base station corresponds to different devices in different systems.
  • a 4G system it can correspond to a base station in 4G, such as an eNB
  • a 5G system it corresponds to a base station in 5G, such as gNB.
  • the technical solutions provided by the embodiments of the present application can also be applied to future mobile communication systems. Therefore, the network device 1 and the network device 2 in FIG. 4 can also correspond to the access network devices in the future mobile communication system.
  • Fig. 4 takes the network device 1 and the network device 2 as a base station as an example.
  • the network device 1 or the network device 2 may also be devices such as RSU.
  • the terminal device in FIG. 4 uses a mobile phone as an example.
  • the terminal device in the embodiment of the present application is not limited to the mobile phone.
  • FIG. 5 is a flowchart of the method.
  • the application of this method to the network architecture shown in FIG. 4 is taken as an example.
  • the method executed by the network device and the terminal device is taken as an example.
  • the main network device described below may be the network device 1 in the network architecture shown in FIG. 4, that is, the main network of the terminal device.
  • the auxiliary network device described below may be the network device 2 in the network architecture shown in FIG. 4, that is, the auxiliary network device of the terminal device, and the terminal device described below may be the network architecture shown in FIG. 4 Terminal equipment in.
  • the terminal device determines the uplink service.
  • the terminal device is in a dual connection mode, that is, the terminal device is connected with the main network device and connected with the auxiliary network device. And the communication between the terminal device and the MCG is suspended, and the communication with the SCG is also suspended, or in other words, the terminal device is in a suspended state. For example, before S51, if the terminal device has no uplink service and no downlink service, S52 can also be performed.
  • the main network device can send a configuration message to the terminal device, and the configuration message can instruct the terminal device to enter the suspended state. After the terminal device receives the configuration message from the main network device, it can enter the suspended state.
  • the terminal device can detect paging messages or system messages from the MCG, but cannot perform downlink services with the MCG, and cannot perform uplink services with the MCG. In addition, in the suspended state, the terminal device cannot perform downlink services with the SCG, nor can it perform uplink services with the SCG.
  • the uplink service can be determined. For example, when a terminal device needs to initiate an uplink service, it can determine the uplink service accordingly.
  • the number of uplink services determined here is one or more.
  • the uplink services may include the uplink services to be initiated by the terminal equipment, or may also include all the network equipment (such as the main network equipment) configured for the terminal equipment. Uplink business. For example, when the terminal device enters the RRC connection state under the main network device, the main network device may configure one or more uplink services for the terminal device.
  • the NAS layer of the terminal device can identify the uplink service to be initiated by the terminal device, and the uplink service determined by the terminal device may include the uplink service to be initiated by the terminal device; or, if the terminal device is After receiving the paging message, the NAS layer of the terminal device may not be able to identify the specific uplink service that needs to be restored.
  • the uplink service determined by the terminal device may include the network device (such as the main network device) that is owned by the terminal device. All configured uplink services.
  • the terminal device determines whether the uplink service is transmitted through the SCG.
  • the terminal device can determine whether the uplink service is to be transmitted through the SCG.
  • the terminal device needs to determine whether the uplink service is transmitted through the SCG.
  • One way of implementation is to determine whether the DRB used to transmit the uplink service belongs to the SCG. If the DRB used to transmit the uplink service belongs to the SCG, the terminal device determines that the uplink service is transmitted through the SCG, and if the DRB used to transmit the uplink service does not belong to the SCG, for example, belongs to the MCG, the terminal device determines that the uplink service is not. Transmission via SCG.
  • the DRB used to transmit the uplink service is, for example, the DRB corresponding to the identifier of the protocol data unit (protocol data unit, PDU) session corresponding to the uplink service.
  • the terminal device determines the uplink service, which may be that the NAS layer of the terminal device determines the uplink service.
  • the NAS layer of the terminal device can determine the identifier of the PDU session corresponding to the uplink service.
  • the identifier of the PDU session is, for example, the identity number (ID) of the PDU session, or may also be other information used to indicate the PDU session.
  • the NAS layer of the terminal device may send the determined identification of the PDU session to the RRC layer of the terminal device.
  • the NAS layer of the terminal device will not determine the identity of the PDU session corresponding to the uplink service, or in other words, the NAS layer of the terminal device determines The identifier of the PDU session corresponding to the uplink service is empty.
  • the RRC layer of the terminal device After receiving the PDU session identifiers corresponding to the uplink service, the RRC layer of the terminal device can determine the DRBs corresponding to the PDU sessions corresponding to the PDU session identifiers. Among them, the DRB corresponding to a PDU session refers to that the PDU session is transmitted through the DRB. After determining the DRB corresponding to the PDU session corresponding to the PDU session identifiers, the RRC layer of the terminal device can determine whether there is a DRB belonging to the SCG among these DRBs. Among them, a DRB belonging to an SCG may mean that the DRB uses a logical channel (logical channel, LCH) of the SCG.
  • LCH logical channel
  • a DRB belongs to an SCG, or in other words, if a DRB uses the LCH of the SCG, it indicates that the PDU session transmitted by the DRB needs to be transmitted through the SCG. In this case, the service corresponding to the PDU session also needs to be transmitted through the SCG. And if a DRB does not belong to the SCG, or if a DRB does not use the LCH of the SCG, for example, the LCH of the MCG is used, it indicates that the PDU session transmitted by the DRB does not need to be transmitted through the SCG. In this case, the service corresponding to the PDU session does not need to be transmitted through the SCG.
  • one uplink service can correspond to one PDU session or multiple PDU sessions, and each PDU session corresponds to a corresponding DRB. Then, one uplink service can correspond to one or more DRBs, and these one or more DRBs can all belong to MCG, or All belong to SCG, or some DRBs belong to MCG, and another part of DRBs belong to SCG. For an uplink service, as long as one of its corresponding DRBs belongs to an SCG, it indicates that the uplink service needs to be transmitted through the SCG.
  • the terminal device determines whether the uplink service determined by the terminal device needs to be transmitted through the SCG. If the DRBs corresponding to all the uplink services determined by the terminal equipment do not belong to the SCG, it means that the uplink services determined by the terminal equipment do not need to be transmitted through the SCG.
  • the RRC layer of the terminal device can determine to restore the communication between the terminal device and the SCG; or, if the RRC layer of the terminal device is determined, the terminal The uplink service determined by the device does not need to be transmitted through the SCG, and the RRC layer of the terminal device can determine that there is no need to restore the communication between the terminal device and the SCG.
  • the terminal device sends an RRC recovery request message to the main network device, and the main network device receives the RRC recovery request message from the terminal device.
  • the RRC recovery request message is used to request the recovery of the communication between the terminal device and the SCG.
  • the terminal device can send an RRC recovery request message to the main network device to request the recovery of the communication with the SCG.
  • the RRC recovery request message may also request the recovery of communication between the terminal device and the MCG.
  • the RRC recovery request message sent by the terminal device can be used to request the recovery of the communication between the terminal device and the MCG, and to request the recovery of the communication between the terminal device and the SCG (S54 in Figure 5 takes this as an example); or, if the terminal device determines that the uplink service is not transmitted through SCG, the terminal device can also send an RRC recovery request message to the main network device. At this time, the RRC recovery request message is used for Request to restore the communication between the terminal device and the MCG, but not to request the restoration of the communication between the terminal device and the SCG.
  • the main network device sends an RRC recovery message to the terminal device, and the terminal device receives the RRC recovery message from the main network device.
  • the RRC recovery message sent by the terminal device is used to request the recovery of the communication between the terminal device and the MCG, and to request the recovery of the communication between the terminal device and the SCG
  • the RRC recovery message can be used to recover the communication between the terminal device and the MCG Communication between the terminal device and the SCG (S55 in Figure 5 is taken as an example); or, if the RRC recovery request message sent by the terminal device is used to request the recovery of the communication between the terminal device and the MCG, Without requesting the recovery of the communication between the terminal device and the SCG, the RRC recovery message can be used to recover the communication between the terminal device and the MCG, but the communication between the terminal device and the SCG is not restored.
  • the RRC recovery message can carry configuration information of the connection between the terminal device and the MCG, for example, called the first configuration information, and the terminal device can be based on the first configuration information.
  • the configuration information restores the communication between the terminal device and the MCG.
  • the RRC recovery message may not need to carry the first configuration information, and the terminal device has communicated with the MCG, and the terminal device may resume the communication with the MCG according to the original configuration of the connection with the MCG.
  • the RRC recovery message can carry the configuration information of the connection between the terminal device and the SCG, for example, referred to as the second configuration information, and the terminal device can be based on the second configuration information.
  • the configuration information restores the communication between the terminal device and the SCG.
  • the RRC recovery message may not need to carry the second configuration information, and the terminal device has communicated with the SCG, and the terminal device may resume the communication with the SCG according to the original configuration of the connection with the SCG.
  • the main network device before sending the RRC restore message to the terminal device, it can also interact with auxiliary network devices.
  • the primary network device can forward the RRC recovery request message from the terminal device to the secondary network device.
  • the secondary network device After receiving the RRC recovery request message, the secondary network device can send a confirmation message to the primary network device to confirm that the connection between the SCG and the terminal device is restored.
  • the confirmation message may carry the second configuration information of the connection between the terminal device and the SCG, or may not carry the second configuration information.
  • the main network device After receiving the confirmation message, the main network device can send the RRC recovery message to the terminal device. Wherein, if the confirmation message carries the second configuration information, the main network device may carry the second configuration information in the RRC recovery message.
  • the auxiliary network device can make it clear that the terminal device will resume the communication between the terminal device and the SCG, and the auxiliary network device can also respond to the connection between the terminal device and the SCG Configuration.
  • the primary network device may not need to interact with the secondary network device.
  • the primary network device can send the RRC recovery message to the terminal device by itself.
  • the main network device can still notify the auxiliary network device that the terminal device needs to resume communication with the SCG.
  • the auxiliary network device only needs to know that the terminal device wants to resume communication with the SCG, and there is no need to configure the connection with the terminal device, which helps to reduce the burden on the auxiliary network device.
  • the terminal device sends an RRC recovery complete message to the main network device, and the main network device receives the RRC recovery complete message from the terminal device.
  • the terminal device can send RRC to the main network device after the communication with the MCG is restored Recovery complete message to inform the main network device that the terminal device has resumed communication with the MCG; or, if the RRC recovery message is used to resume the communication between the terminal device and the MCG, and to restore the communication between the terminal device and the SCG After the terminal device resumes the communication with the MCG and the SCG, it can send an RRC recovery complete message to the main network device to inform the main network device that the terminal device has resumed communication with the MCG and Communication with SCG.
  • the terminal device may determine whether to resume communication between the terminal device and the SCG according to the uplink service. For example, when the terminal device determines that the uplink service is transmitted through the SCG, the communication between the terminal device and the SCG is restored, and if the uplink service is not transmitted through the SCG, there is no need to restore the communication between the terminal device and the SCG. In this way, unnecessary SCG recovery procedures can be reduced, the transmission overhead caused by the recovery of communication between the terminal device and the SCG can be reduced, and the recovery of the communication between the terminal device and the SCG can be more effective.
  • FIG. 6 is a schematic block diagram of a communication device 600 according to an embodiment of the application.
  • the communication device 600 is a terminal device 600, for example.
  • the terminal device 600 includes a processing module 610 and a transceiver module 620.
  • the terminal device 600 may be a network device, or may be a chip applied in a terminal device or other combination devices, components, etc. having the above-mentioned terminal device functions.
  • the transceiver module 620 may be a transceiver.
  • the transceiver may include an antenna and a radio frequency circuit.
  • the processing module 610 may be a processor, such as a baseband processor.
  • the baseband processor may include one or more Central processing unit (central processing unit, CPU).
  • the transceiver module 620 may be a radio frequency unit, and the processing module 610 may be a processor, such as a baseband processor.
  • the transceiver module 620 may be an input/output interface of a chip (such as a baseband chip), and the processing module 610 may be a processor of the chip system, and may include one or more central processing units.
  • the processing module 610 in the embodiment of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver module 620 may be implemented by a transceiver or a transceiver-related circuit component.
  • the processing module 610 may be used to perform all operations other than the transceiving operations performed by the terminal device in the embodiment shown in FIG. 5, such as S51 and S53, and/or other operations used to support the technology described herein. process.
  • the transceiver module 620 may be used to perform all the receiving operations performed by the terminal device in the embodiment shown in FIG. 5, such as S52, S54 to S56, and/or other processes used to support the technology described herein.
  • the transceiver module 620 may be a functional module that can perform both sending and receiving operations.
  • the transceiver module 620 may be used to perform all the sending operations performed by the terminal device in the embodiment shown in FIG. 5 And receiving operations, for example, when performing a sending operation, the transceiver module 620 can be considered as a sending module, and when performing a receiving operation, the transceiver module 620 can be considered as a receiving module; or, the transceiver module 620 can also be two functional modules, The transceiver module 620 can be regarded as a collective term for these two functional modules.
  • the two functional modules are respectively a sending module and a receiving module.
  • the sending module is used to complete the sending operation.
  • the sending module can be used to perform the functions of the embodiment shown in FIG. 5.
  • the receiving module is used to complete the receiving operation.
  • the receiving module may be used to perform all the receiving operations performed by the terminal device in the embodiment shown in FIG. 5.
  • the processing module 610 is used to determine the uplink service, wherein the communication between the terminal equipment and the MCG of the primary cell group and the communication with the SCG of the secondary cell group are suspended;
  • the processing module 610 is further configured to determine whether the uplink service is transmitted through SCG;
  • the transceiver module 620 is configured to send an RRC recovery request message to the main network device of the terminal device when the uplink service is transmitted through the SCG, where the RRC recovery request message is used to request the recovery of communication with the SCG.
  • the processing module 610 is configured to determine whether the uplink service is transmitted through the SCG in the following manner:
  • the data radio bearer corresponding to the identifier of the PDU session corresponding to the uplink service is a data radio bearer used to transmit the uplink service.
  • the uplink service includes an uplink service to be initiated, or includes all uplink services configured by the main network device for the terminal device.
  • the RRC recovery request message is also used to request the recovery of communication with the MCG.
  • the transceiver module 620 is further configured to receive an RRC recovery message from the primary network device, where the RRC recovery message is used to recover communication with the SCG.
  • FIG. 7 is a schematic block diagram of a communication device 700 according to an embodiment of the application.
  • the communication apparatus 700 is a network device 700, for example.
  • the network device 700 includes a processing module 710 and a transceiver module 720.
  • the network device 700 may be the main network device described above, or may be a chip applied to the main network device or other combination devices, components, etc. having the functions of the main network device described above.
  • the transceiver module 720 may be a transceiver, the transceiver may include an antenna and a radio frequency circuit, etc.
  • the processing module 710 may be a processor, and the processor may include one or more CPUs.
  • the transceiver module 720 may be a radio frequency unit, and the processing module 710 may be a processor, such as a baseband processor.
  • the transceiver module 720 may be an input/output interface of a chip (such as a baseband chip), and the processing module 710 may be a processor of the chip system, and may include one or more central processing units.
  • the processing module 710 in the embodiment of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver module 720 may be implemented by a transceiver or a transceiver-related circuit component.
  • the processing module 710 may be used to perform all operations performed by the main network device in the embodiment shown in FIG. 5 except for the transceiving operation, such as determining that the terminal device resumes communication with the SCG, and/or Other processes used to support the technology described in this article.
  • the transceiver module 720 may be used to perform all the receiving operations performed by the main network device in the embodiment shown in FIG. 5, such as S52, 54 to S56, and/or other processes used to support the technology described herein.
  • the transceiver module 720 may be a functional module that can perform both sending operations and receiving operations.
  • the transceiver module 720 may be used to perform all the transmissions performed by the main network device in the embodiment shown in FIG. 5 Operation and receiving operations.
  • the transceiver module 720 when performing a sending operation, can be considered as a sending module, and when performing a receiving operation, the transceiver module 720 can be considered as a receiving module; alternatively, the transceiver module 720 can also be two functional modules.
  • the transceiver module 720 can be regarded as a collective term for these two functional modules.
  • the two functional modules are respectively a sending module and a receiving module.
  • the sending module is used to complete the sending operation.
  • the sending module can be used to execute the embodiment shown in FIG. 5
  • the receiving module is used to complete the receiving operation.
  • the receiving module may be used to perform all the receiving operations performed by the main network device in the embodiment shown in FIG. 5.
  • the transceiver module 720 is configured to receive an RRC recovery request message from a terminal device, and the recovery request message is used to request the recovery of communication between the terminal device and the secondary cell group SCG, wherein the uplink service of the terminal device passes all The SCG transmission;
  • the transceiver module 720 is further configured to send an RRC recovery message to the terminal device, and the RRC reply message is used to recover the communication between the terminal device and the SCG.
  • the processing module 710 is configured to determine that the recovery request message is used to request the recovery of communication between the terminal device and the secondary cell group SCG.
  • the RRC recovery request message is also used to request the recovery of communication with the MCG.
  • the transceiver module 720 is further configured to send an RRC recovery message to the terminal device, where the RRC recovery message is used to recover communication with the SCG.
  • the embodiment of the present application also provides a communication device, and the communication device may be a terminal device or a circuit.
  • the communication device can be used to perform the actions performed by the terminal device in the foregoing method embodiments.
  • FIG. 8 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate.
  • the terminal device uses a mobile phone as an example.
  • the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal out in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 8 only one memory and processor are shown in FIG. 8. In an actual terminal device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with transceiving functions can be regarded as the transceiving unit of the terminal device (the transceiving unit can be a functional unit that can realize the sending and receiving functions; or the transceiving unit can also be It includes two functional units, namely a receiving unit capable of realizing the receiving function and a transmitting unit capable of realizing the transmitting function), and the processor with the processing function is regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiving unit 810 and a processing unit 820.
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, and so on.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiving unit 810 can be regarded as the receiving unit
  • the device for implementing the sending function in the transceiving unit 810 can be regarded as the sending unit, that is, the transceiving unit 810 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • transceiving unit 810 is configured to perform sending and receiving operations on the terminal device side in the foregoing method embodiment
  • processing unit 820 is configured to perform other operations on the terminal device in the foregoing method embodiment except for the transceiving operation.
  • the processing unit 820 may be used to perform all operations performed by the terminal device in the embodiment shown in FIG. 5 except for the receiving and sending operations, such as S51 and S53, and/or for supporting Other processes of the technique described in this article.
  • the transceiving unit 810 may be used to perform all the receiving operations performed by the terminal device in the embodiment shown in FIG. 5, such as S52, S54 to S56, and/or other processes used to support the technology described herein.
  • the device may include a transceiver unit and a processing unit.
  • the transceiving unit may be an input/output circuit and/or a communication interface;
  • the processing unit is an integrated processor or microprocessor or integrated circuit.
  • the device shown in FIG. 9 can be referred to.
  • the device can perform functions similar to the processing module 610 in FIG. 6.
  • the device includes a processor 910, a data sending processor 920, and a data receiving processor 930.
  • the processing module 610 in the foregoing embodiment may be the processor 910 in FIG. 9 and complete corresponding functions;
  • the transceiving module 620 in the foregoing embodiment may be the sending data processor 920 in FIG. 9 and/or receiving data Processor 930, and complete the corresponding functions.
  • the channel encoder and the channel decoder are shown in FIG. 9, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are merely illustrative.
  • the processing device 1000 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem.
  • the communication device in this embodiment can be used as the modulation subsystem therein.
  • the modulation subsystem may include a processor 1003 and an interface 1004.
  • the processor 1003 completes the function of the above-mentioned processing module 610
  • the interface 1004 completes the function of the above-mentioned transceiver module 620.
  • the modulation subsystem includes a memory 1006, a processor 1003, and a program stored in the memory 1006 and running on the processor.
  • the processor 1003 executes the program on the terminal device side in the above method embodiment. Methods.
  • the memory 1006 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1000, as long as the memory 1006 can be connected to the The processor 1003 is fine.
  • the device 1100 includes one or more radio frequency units, such as a remote radio unit (RRU) 1110 and one or more baseband units (BBU) (also referred to as digital units, digital units, DU) 1120 .
  • RRU remote radio unit
  • BBU baseband units
  • the RRU 1110 may be referred to as a transceiver module, and the transceiver module may include a sending module and a receiving module, or the transceiver module may be a module capable of implementing sending and receiving functions.
  • the transceiver module may correspond to the transceiver module 720 in FIG. 7.
  • the transceiver module may also be called a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 1111 and a radio frequency unit 1112.
  • the RRU 1110 part is mainly used for sending and receiving of radio frequency signals and conversion of radio frequency signals and baseband signals, for example, for sending instruction information to terminal equipment.
  • the 1110 part of the BBU is mainly used to perform baseband processing, control the base station, and so on.
  • the RRU 1110 and the BBU 1120 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 1120 is the control center of the base station, and may also be called a processing module, which may correspond to the processing module 710 in FIG. 7, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing module
  • the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate the foregoing indication information.
  • the BBU 1120 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network (such as an LTE network) of a single access standard, or can support different access standards. Wireless access network (such as LTE network, 5G network or other networks).
  • the BBU 1120 further includes a memory 1121 and a processor 1122.
  • the memory 1121 is used to store necessary instructions and data.
  • the processor 1122 is used to control the base station to perform necessary actions, for example, used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 1121 and the processor 1122 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the embodiment of the present application provides a communication system.
  • the communication system may include the terminal device involved in the embodiment shown in FIG. 5 and the main network device involved in the embodiment shown in FIG. 5.
  • the auxiliary network device involved in the embodiment shown in FIG. 5 may also be included.
  • the terminal device is, for example, the terminal device 600 in FIG. 6.
  • the main network device is, for example, the network device 700 in FIG. 7.
  • the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the computer can implement the method shown in FIG. 5 provided by the foregoing method embodiment.
  • the process related to the main network device in the embodiment is not limited to a computer-readable storage medium.
  • the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the method shown in FIG. 5 provided by the foregoing method embodiment.
  • the process related to the terminal device in the embodiment is not limited to a computer-readable storage medium, the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the method shown in FIG. 5 provided by the foregoing method embodiment. The process related to the terminal device in the embodiment.
  • the embodiments of the present application also provide a computer program product, the computer program product is used to store a computer program, when the computer program is executed by a computer, the computer can implement the embodiment shown in FIG. 5 provided by the above method embodiment Processes related to the main network device.
  • the embodiments of the present application also provide a computer program product, the computer program product is used to store a computer program, when the computer program is executed by a computer, the computer can implement the embodiment shown in FIG. 5 provided by the above method embodiment Processes related to terminal equipment.
  • processors mentioned in the embodiments of this application may be a CPU, other general-purpose processors, digital signal processors (digital signal processors, DSP), application specific integrated circuits (ASICs), ready-made Field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM, DR RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, 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 the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned computer-readable storage medium may be any available medium that can be accessed by a computer.
  • computer-readable media can include random access memory (RAM), read-only memory (ROM), and electrically erasable programmable read-only memory (electrically erasable programmable read-only memory).
  • RAM random access memory
  • ROM read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • CD-ROM compact disc read-only memory
  • USB flash disk universal serial bus flash disk
  • mobile hard disk or other optical disk storage
  • disk storage A medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer.

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

Abstract

La présente invention concerne un procédé, un appareil et un dispositif de récupération de transmission. Le procédé comporte les étapes consistant à : déterminer un service de liaison montante, la communication entre un dispositif terminal et un MCG et la communication avec un SCG étant suspendues ; déterminer si le service de liaison montante est transmis au moyen du SCG, et lorsque le service de liaison montante est transmis au moyen du SCG, envoyer un message de demande de récupération de RRC à un dispositif principal de réseau d'un dispositif terminal, le message de demande de récupération de RRC étant utilisé pour demander la récupération de la communication avec le SCG ; et déterminer, selon le service de liaison montante, s'il convient de récupérer la communication avec le SCG, et réduire, autant que possible, les processus superflus de récupération de SCG de façon à diminuer le surdébit de transmission qui résulte de la récupération de la communication entre le dispositif terminal et le SCG ; en outre, la récupération de la communication entre le dispositif terminal et le SCG est plus efficiente.
PCT/CN2020/070146 2020-01-02 2020-01-02 Procédé, appareil et dispositif de récupération de transmission WO2021134763A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023011461A1 (fr) * 2021-08-06 2023-02-09 大唐移动通信设备有限公司 Procédé et appareil pour transmettre des informations d'état de données de tampon d'un groupe de cellules secondaires

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107211466A (zh) * 2015-01-20 2017-09-26 Lg电子株式会社 在载波聚合系统中发起随机接入过程的方法及其装置
CN108924949A (zh) * 2017-03-24 2018-11-30 华为技术有限公司 无线网络中的通信方法、装置和系统
WO2019027296A1 (fr) * 2017-08-04 2019-02-07 Lg Electronics Inc. Procédé d'exécution d'une radiomessagerie fondée sur ran et dispositif prenant en charge ledit procédé
CN109756994A (zh) * 2017-08-25 2019-05-14 电信科学技术研究院 一种终端状态的恢复方法、装置、基站及终端
CN110557849A (zh) * 2018-05-30 2019-12-10 华为技术有限公司 一种通信方法及装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112135367B (zh) * 2017-07-11 2024-03-01 华为技术有限公司 一种连接建立的方法、装置及系统
CN110602750B (zh) * 2018-06-12 2023-03-21 中兴通讯股份有限公司 传输链路管理、建立、迁移方法、装置、基站及存储介质

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107211466A (zh) * 2015-01-20 2017-09-26 Lg电子株式会社 在载波聚合系统中发起随机接入过程的方法及其装置
CN108924949A (zh) * 2017-03-24 2018-11-30 华为技术有限公司 无线网络中的通信方法、装置和系统
WO2019027296A1 (fr) * 2017-08-04 2019-02-07 Lg Electronics Inc. Procédé d'exécution d'une radiomessagerie fondée sur ran et dispositif prenant en charge ledit procédé
CN109756994A (zh) * 2017-08-25 2019-05-14 电信科学技术研究院 一种终端状态的恢复方法、装置、基站及终端
CN110557849A (zh) * 2018-05-30 2019-12-10 华为技术有限公司 一种通信方法及装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023011461A1 (fr) * 2021-08-06 2023-02-09 大唐移动通信设备有限公司 Procédé et appareil pour transmettre des informations d'état de données de tampon d'un groupe de cellules secondaires

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