WO2019019120A1 - 传输数据的方法、终端设备和网络设备 - Google Patents

传输数据的方法、终端设备和网络设备 Download PDF

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Publication number
WO2019019120A1
WO2019019120A1 PCT/CN2017/094763 CN2017094763W WO2019019120A1 WO 2019019120 A1 WO2019019120 A1 WO 2019019120A1 CN 2017094763 W CN2017094763 W CN 2017094763W WO 2019019120 A1 WO2019019120 A1 WO 2019019120A1
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WIPO (PCT)
Prior art keywords
cell group
type
pdu
terminal device
retransmissions
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PCT/CN2017/094763
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English (en)
French (fr)
Inventor
唐海
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Oppo广东移动通信有限公司
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Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2017/094763 priority Critical patent/WO2019019120A1/zh
Priority to CN201780088662.0A priority patent/CN110431872B/zh
Priority to US16/619,204 priority patent/US11218256B2/en
Priority to EP17919164.8A priority patent/EP3611954B1/en
Publication of WO2019019120A1 publication Critical patent/WO2019019120A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1816—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of the same, encoded, message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H04W84/20—Master-slave selection or change arrangements

Definitions

  • Embodiments of the present invention relate to the field of communications, and, more particularly, to a method, a terminal device, and a network device for transmitting data.
  • the Radio Link Control (RLC) layer belongs to the data link layer and is used to provide segmentation and retransmission services for users and control data. Specifically, the function of the RLC layer is implemented by the RLC entity.
  • An RLC entity can be configured in any of the following three modes: Transparent Mode (TM), Unacknowledged Mode (UM), and Acknowledged Mode (AM). Among them, the AM mode provides all the RLC functions, and can effectively improve the reliability of data transmission through error detection and retransmission.
  • the maximum number of retransmissions that occur on the RLC layer of the primary cell group (MCG) and the secondary cell group (SCG) of the UE triggers a radio link failure (RLF).
  • RLF radio link failure
  • MCG primary cell group
  • SCG secondary cell group
  • RLF radio link failure
  • the existing technical solution may have an uplink data transmission failure and reduce the success rate of data transmission. For example, when the configuration data (DRB) or signaling (SRB) is only transmitted in the SCG, if the SCG fails, the uplink transmission fails.
  • DRB configuration data
  • SRB signaling
  • a method, a terminal device and a network device for transmitting data are provided, which can effectively improve the success rate of transmitting data.
  • a method of transmitting data comprising:
  • the cell group includes a first type of cell group and/or a second type of cell group, and the type of the first type of cell group and the type of the second type of cell group are different;
  • the RLF is processed according to a type of a cell group corresponding to the PDU.
  • the method for transmitting data in the embodiment of the present invention is directed to the transmission scenario of the PDU by the terminal device when the number of retransmissions of the PDU at the RLC layer is greater than or equal to the maximum number of retransmissions and the radio link failure RLF is triggered in the DC scenario. Triggering different RLF operations can effectively improve the success rate of transmitting uplink data.
  • the data replication function of the PDCP layer of the packet data convergence protocol is in an active state.
  • the processing includes:
  • the PDU corresponding cell group is the first type of cell group, reconfiguring the radio resource control RRC connection of the first type of cell group.
  • reconfiguring the radio resource control RRC connection of the first type of cell group includes:
  • the terminal device sends the RRC reconfiguration information of the first type of cell group to the network device by using the SRB of the second type of cell group, which can effectively improve the success rate of transmitting the uplink data.
  • the data replication function of the PDCP layer of the packet data convergence protocol is in a closed state.
  • the processing includes:
  • the cell group corresponding to the PDU is the first type of cell group, suspending the data radio bearer DRB of the first type of cell group, and restoring the DRB of the second type cell group;
  • the terminal device passes the DRB of the second type of cell group to The network device sends the PDU, which can effectively improve the success rate of transmitting uplink data.
  • the method further includes:
  • the reconfiguring the radio resource control RRC connection of the first type of cell group includes:
  • the processing includes:
  • the cell group corresponding to the PDU is the second type of cell group, releasing a radio resource control RRC connection of the second type of cell group or reestablishing a radio resource control RRC connection of the second type of cell group.
  • the first type of cell group is a secondary cell group SCG
  • the second type of cell group is a primary cell group MCG.
  • the method before the determining the type of the cell group corresponding to the PDU, the method further includes:
  • configuration information where the configuration information is used by the terminal device to determine a type of the cell group corresponding to the PDU, where the determining the type of the cell group corresponding to the PDU includes:
  • the receiving configuration information sent by the network device includes:
  • Radio resource control RRC signaling sent by the network device, where the RRC signaling includes the configuration information.
  • a method of transmitting data comprising:
  • the configuration information is used by the terminal device to determine a type of the cell group corresponding to the protocol data unit PDU, so that the number of retransmissions of the terminal device in the PDU is greater than or equal to the maximum number of retransmissions, and the radio is triggered.
  • the RLF is processed according to the type of the cell group corresponding to the PDU, where the cell group corresponding to the PDU includes a first type of cell group and a second type of cell group, and the first type of cell group Type and the second type of cell Different types of groups;
  • the sending the configuration information to the terminal device includes:
  • Radio resource control RRC signaling Transmitting radio resource control RRC signaling to the terminal device, where the RRC signaling includes the configuration information.
  • a terminal device where the terminal device includes:
  • a determining unit configured to determine a type of a cell group corresponding to the PDU when a number of retransmissions of a protocol data unit PDU of a radio link layer control protocol RLC layer is greater than or equal to a maximum number of retransmissions and trigger a radio link failure RLF
  • the cell group corresponding to the PDU includes a first type of cell group and/or a second type of cell group, and the type of the first type of cell group and the type of the second type of cell group are different;
  • a processing unit configured to process the RLF according to a type of the cell group corresponding to the PDU.
  • a fourth aspect provides a terminal device, where the terminal device includes a processor, and the processor is configured to:
  • the cell group includes a first type of cell group and/or a second type of cell group, and the type of the first type of cell group and the type of the second type of cell group are different;
  • the RLF is processed according to a type of a cell group corresponding to the PDU.
  • a network device where the network device includes:
  • a generating unit configured to generate configuration information, where the configuration information is used by the terminal device to determine a type of the cell group corresponding to the protocol data unit PDU, so that the number of retransmissions of the terminal device in the PDU is greater than or equal to the maximum retransmission
  • the RLF is processed according to the type of the cell group corresponding to the PDU, and the cell group corresponding to the PDU includes a first type of cell group and a second type of cell group, The type of the first type of cell group is different from the type of the second type of cell group;
  • a sending unit configured to send the configuration information to the terminal device.
  • a network device where the network device includes:
  • a processor configured to generate configuration information, where the configuration information is used by the terminal device to determine a type of the cell group corresponding to the protocol data unit PDU, so that the terminal device retransmits the number of times in the PDU
  • the RLF is processed according to the type of the cell group corresponding to the PDU, where the cell group corresponding to the PDU includes the first type of cell group and a second type of cell group, the type of the first type of cell group and the type of the second type of cell group are different;
  • a transceiver configured to send the configuration information to the terminal device.
  • a computer readable medium for storing a computer program comprising instructions for performing the method embodiment of the first aspect or the second aspect described above.
  • a computer chip comprising: an input interface, an output interface, at least one processor, a memory, the processor is configured to execute code in the memory, and when the code is executed, the processing The respective processes executed by the terminal device or the network device in the method of transmitting data of the first aspect or the second aspect described above may be implemented.
  • a communication system comprising the aforementioned network device, and the aforementioned terminal device.
  • FIG. 1 is a schematic flowchart of a method for transmitting data of a PDCP layer according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for transmitting data according to an embodiment of the present invention.
  • FIG. 3 is a schematic block diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 4 is another schematic block diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of a network device according to an embodiment of the present invention.
  • FIG. 6 is another schematic block diagram of a network device according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • 5G communication system Long Term Evolution (LTE), LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), and the like.
  • LTE Long Term Evolution
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the present invention describes various embodiments in connection with network devices and terminal devices.
  • the network device may be a base station or a network side device having a base station function.
  • the network device may be a base station (Base Transceiver Station, BTS) in the GSM system or CDMA, or a base station (NodeB, NB) in the WCDMA system, or an evolved base station (Evolved Node B in the LTE system).
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • Evolved Node B in the LTE system evolved base station
  • the eNB or eNodeB), or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a network device in a future 5G network.
  • a terminal device may also be called an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user. Agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless A communication-enabled handheld device, computing device, or other linear processing device connected to a wireless modem, an in-vehicle device, a wearable device, and the like.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the embodiment of the present invention provides a method for transmitting data, which can be performed by using a copy data function of a Packet Data Convergence Protocol (PDCP) layer. Data duplication transmission.
  • the data transmission method of the embodiment of the invention can effectively improve the reliability of data transmission.
  • FIG. 1 is a schematic flowchart of a method for transmitting data of a PDCP layer according to an embodiment of the present invention.
  • the data generated by the PDCP layer (PDCP PDU and duplicate PDCP PDU) are respectively transmitted to two different RLC entities (RLC entity a and RLC entity b), and the two different RLC entities respectively correspond to different Media Access Control (MAC) layer entities (MAC entity a and MAC entity b) are mapped to different cell groups (MCG and SCG).
  • the data generated by the PDCP layer (the duplicated data of the PDCP PDU and the PDCP PDU) are respectively mapped to different cell groups through two different RLC entities, and the purpose of the frequency diversity gain can be achieved, thereby improving the data.
  • the reliability of the transmission is possible to improve the data.
  • each sub-layer is sent to a specified layer of the receiving end according to the data of the protocol data unit.
  • the data that is not processed into each sub-layer is called a service data unit (SDU), and the data formed in a specific format after being processed by the sub-layer is called a protocol data unit.
  • SDU Service Data Unit
  • PDU Protocol Data Unit
  • the SDU is an information element transmitted from a higher layer protocol to a lower layer protocol, that is, the original data of the SDU is a PDU of the upper layer of the protocol.
  • the PDU formed by this layer is the SDU of the next layer.
  • each logical channel of each terminal device has one RLC entity (RLC entity), data received by the RLC entity from the PDCP layer, or data sent to the PDCP layer may be referred to as an RLC SDU (or PDCP PDU).
  • RLC SDU or PDCP PDU
  • RLC PDU or MAC SDU
  • the RLC layer is located between the PDCP layer and the MAC layer, and the RLC layer can communicate with the PDCP layer through a Service Access Point (SAP), and communicate with the MAC layer through a logical channel.
  • SAP Service Access Point
  • embodiments of the invention are not limited thereto.
  • the terminal device can improve the reliability of data transmission by means of frequency diversity gain. If the SCG and / or MCG fails, it is also possible to cause data transmission failure, thereby reducing the success rate of data transmission. For example, when configuration data (DRB) or signaling (SRB) is transmitted in SCG, if the SCG fails, the transmission will fail.
  • DRB configuration data
  • SRB signaling
  • a method for transmitting data is further provided, where the number of retransmissions of the PDU at the RLC layer is greater than or equal to the maximum number of retransmissions, and the radio link failure is triggered.
  • RLF Radio Link Failure
  • the terminal device triggers different RLF operations through the transmission scenario of the PDU, which can effectively improve the success rate of transmitting uplink data.
  • the number of retransmissions of the PDU of the RLC layer in the embodiment of the present invention may trigger the RLF.
  • the goal of the hybrid automatic repeat request (HARQ) mechanism of the MAC layer is to achieve very fast data retransmission, and the feedback error rate is about 1%.
  • the HARQ mechanism of the separate MAC layer does not meet the transmission requirements. For example, TCP transmission requires a packet loss rate of less than 10 -5 . Therefore, the feedback error rate can be further reduced by the retransmission processing of the RLC layer.
  • a maximum number of retransmissions (maxRetxThreshold) is defined in the embodiment of the present invention. That is, when the number of retransmissions of the PDU of the RLC layer is greater than or equal to the maximum number of retransmissions, the terminal device is triggered to perform an RLF operation.
  • each AMD PDU that needs to be retransmitted (eg, the first transmitted RLC SDU or the retransmitted RLC SDU without fragmentation) has an associated RETX_COUNT.
  • the sender RRC layer
  • FIG. 2 is a schematic flowchart of a method 100 for transmitting data according to an embodiment of the present invention.
  • the method 100 includes:
  • the type of the cell group corresponding to the uplink data of the PDU is determined, and the cell group corresponding to the PDU includes the first type.
  • the cell group and/or the second type of cell group, the type of the first type of cell group is different from the type of the second type of cell group; and then the RLF is processed according to the type of the cell group corresponding to the PDU.
  • the SCG is used as the first type of cell group
  • the MCG is used as the second type of cell group.
  • the first type of cell group may also be any group of cell groups corresponding to physical layer carriers for transmitting signaling
  • the second type of cell group may be any form of physical layer carrier for transmitting signaling and data. Corresponding cell group.
  • the maximum number of retransmissions occurring in the RLC layer of the primary cell group (MCG) and the secondary cell group (SCG) may trigger the RLF. That is, when the number of retransmissions of the PDU of the RLC entity corresponding to the MCG is greater than or equal to the maximum number of retransmissions, the RLF may be triggered; when the number of retransmissions of the PDU of the RLC entity corresponding to the SCG is greater than or equal to the maximum number of retransmissions, Trigger RLF.
  • the cell group in the embodiment of the present invention may be in one-to-one correspondence with the physical layer carrier. That is to say, the cell group corresponding to the PDU in the embodiment of the present invention can be understood as a cell group corresponding to the physical layer carrier for transmitting the PDU.
  • the cell group corresponding to the PDU is an MCG
  • the cell group corresponding to the physical layer carrier used for transmitting the PDU is an MCG.
  • the number of retransmissions of the PDUs of the RLC entity corresponding to the first type of cell group in the different scenarios of the PDCP is greater than or equal to the maximum number of retransmissions and triggers the RLF;
  • the method for the device to process the RLF is explained.
  • the data replication function of the PDCP layer is in an active state.
  • the embodiments of the present invention are applicable to a SRB duplication scenario of a DC.
  • the PDUs of different RLC entities correspond to different cell groups, and the number of retransmissions of an AMD PDU is greater than or equal to the maximum number of retransmissions.
  • the terminal device suspends a Signaling Radio Bearer (SRB) of the first type of cell group, and restores the SRB of the second type of cell group; on the SRB of the second type of cell group,
  • the network device sends RRC reconfiguration information of the first type of cell group.
  • the RRC reconfiguration information may include failure information of the first type of cell group.
  • the terminal device reconfigures the RRC connection of the SCG. Specifically, the terminal device suspends the SRB of the SCG and restores the SRB of the MCG.
  • the RRC reconfiguration information of the SCG is sent to the network device.
  • the RRC reconfiguration information may include failure information of the SCG.
  • the cell group corresponding to the PDU is the second type of cell group, releasing the radio resource control RRC connection of the second type of cell group or reestablishing the radio resource control RRC connection of the second type of cell group.
  • the second type of cell group is an MCG
  • the number of retransmissions of the PDU of the RLC entity corresponding to the MCG is greater than or equal to the maximum number of retransmissions, and the RLF is triggered; the terminal device releases the RRC connection of the MCG or reestablishes the RRC connection of the MCG.
  • the data replication function of the PDCP layer is in a closed state.
  • the embodiments of the present invention are applicable to a DRB duplication scenario of a DC.
  • the PDUs of different RLC entities correspond to different cell groups, and the number of retransmissions of an AMD PDU is greater than or equal to the maximum number of retransmissions.
  • the terminal device suspends a data radio bearer (DRB) of the first type of cell group, and restores the second The DRB of the type cell group; on the DRB of the second type cell group, the PDU is sent to the network device.
  • the terminal device may further reconfigure a radio resource control RRC connection of the first type of cell group. Specifically, the terminal device may suspend the SRB of the first type of cell group and restore the SRB of the second type of cell group; and send the first type of cell group to the network device on the SRB of the second type of cell group. RRC reconfiguration information.
  • the terminal device may suspend the DRB of the SCG and restore the DRB of the MCG; on the DRB of the MCG, The PDU is sent to the network device.
  • the terminal device may also reconfigure an RRC connection of the SCG. Specifically, the terminal device suspends the SRB of the SCG and restores the SRB of the MCG. On the SRB of the MCG, the RRC reconfiguration information of the SCG is sent to the network device.
  • the RRC reconfiguration information may include failure information of the SCG.
  • the cell group corresponding to the PDU is the second type of cell group, releasing the radio resource control RRC connection of the second type of cell group or reestablishing the wireless of the second type of cell group
  • the resource controls the RRC connection.
  • the number of retransmissions of the PDU of the RLC entity corresponding to the second type of cell group is greater than or equal to the maximum number of retransmissions, and the RLF is triggered; the terminal device may release the second The RRC connection of the type cell group or the RRC connection of the second type cell group is reestablished.
  • the second type of cell group is an MCG. If the data replication function of the PDCP layer is in the active state, or the data replication function of the PDCP layer is in the active state, if the number of retransmissions of the PDU of the RLC entity corresponding to the MCG is greater than or equal to the maximum number of retransmissions, and the RLF is triggered;
  • the terminal device may release the RRC connection of the MCG or reestablish the RRC connection of the MCG. It should be understood that the release of the RRC connection and the reestablishment of the RRC connection may use an existing release method or a reconstruction method, which is not specifically limited in the embodiment of the present invention.
  • the terminal device may further receive configuration information sent by the network device, where the configuration information is used by the terminal device to determine the cell group corresponding to the PDU, before determining the type of the cell group corresponding to the PDU. Type; then, the terminal device determines the type of the cell group corresponding to the PDU according to the configuration information.
  • the network device sends configuration information to the terminal device, where the configuration information is used by the terminal device to determine a type of the cell group corresponding to the protocol data unit PDU, so that the terminal device is in the When the number of retransmissions of the PDU is greater than or equal to the maximum number of retransmissions, and the radio link failure RLF is triggered, the RLF is processed according to the type of the cell group corresponding to the PDU;
  • the cell group corresponding to the PDU includes a first type of cell group and a second type of cell group, and the type of the first type of cell group is different from the type of the second type of cell group.
  • the terminal device receives the radio resource control RRC signaling sent by the network device, where the RRC signaling includes the configuration information.
  • the network device sends radio resource control RRC signaling to the terminal device, the RRC signaling including the configuration information.
  • FIG. 3 is a schematic block diagram of a terminal device 200 according to an embodiment of the present invention.
  • the terminal device 200 includes:
  • the determining unit 210 is configured to determine the type of the cell group corresponding to the PDU when the number of retransmissions of the protocol data unit PDU of the radio link layer control protocol RLC layer is greater than or equal to the maximum number of retransmissions and trigger the radio link failure RLF
  • the cell group corresponding to the PDU includes a first type of cell group and/or a second type of cell group, the type of the first type of cell group is different from the type of the second type of cell group, and the processing unit 220 is configured to use the PDU according to the PDU.
  • the type of the corresponding cell group processes the RLF.
  • the number of retransmissions of the PDU is greater than or equal to the maximum number of retransmissions, and when the RLF is triggered, the data replication function of the PDCP layer of the packet data convergence protocol is in an activated state.
  • processing unit 220 is specifically configured to:
  • the PDU corresponding to the cell group is the first type of cell group, reconfiguring the radio resource control RRC connection of the first type of cell group.
  • processing unit 220 is more specifically configured to:
  • the number of retransmissions of the PDU is greater than or equal to the maximum number of retransmissions, and when the RLF is triggered, the data replication function of the PDCP layer of the packet data convergence protocol is in a closed state.
  • processing unit 220 is specifically configured to:
  • the cell group corresponding to the PDU is the first type of cell group, suspending the data radio bearer DRB of the first type of cell group, and recovering the DRB of the second type of cell group; and the DRB of the second type of cell group
  • the PDU is sent to the network device.
  • processing unit 220 is further configured to:
  • processing unit 220 is specifically configured to:
  • processing unit 220 is specifically configured to:
  • the cell group corresponding to the PDU is the second type of cell group, release the radio resource control RRC connection of the second type of cell group or reestablish the radio resource control RRC connection of the second type of cell group.
  • the first type of cell group is a secondary cell group SCG
  • the second type of cell group is a primary cell group MCG.
  • the terminal device further includes:
  • a receiving unit configured to receive configuration information sent by the network device, where the configuration information is used by the terminal device to determine a type of the cell group corresponding to the PDU, where the determining unit 210 is specifically used to determine the type of the cell group corresponding to the PDU.
  • the receiving unit is specifically configured to:
  • Radio resource control RRC signaling sent by the network device, where the RRC signaling includes the configuration information.
  • the determining unit 210 and the processing unit 220 may be implemented by a processor, and the receiving unit may be implemented by a transceiver.
  • the terminal device 300 may include a processor 310, a transceiver 320, and a memory 330.
  • the memory 330 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 310.
  • the various components in the terminal device 300 are connected by a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the terminal device 300 shown in FIG. 4 can implement the various processes implemented by the terminal device in the foregoing method embodiments of FIG. 1 and FIG. 2, and details are not described herein again.
  • FIG. 5 is a schematic block diagram of a network device 400 according to an embodiment of the present invention.
  • the network device 400 includes:
  • the generating unit 410 is configured to generate configuration information, where the configuration information is used by the terminal device to determine a type of the cell group corresponding to the protocol data unit PDU, so that the number of retransmissions of the terminal device in the PDU is greater than or equal to the maximum number of retransmissions, and When the radio link failure RLF is triggered, according to the PDU
  • the type of the corresponding cell group is processed by the RLF, where the cell group corresponding to the PDU includes a first type of cell group and a second type of cell group, and the type of the first type of cell group is different from the type of the second type of cell group;
  • the sending unit 420 is configured to send the configuration information to the terminal device.
  • the sending unit 420 is specifically configured to:
  • Radio resource control RRC signaling Transmitting radio resource control RRC signaling to the terminal device, the RRC signaling including the configuration information.
  • network device 500 can include a processor 510, a transceiver 520, and a memory 530.
  • the memory 530 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 510.
  • the various components in the network device 500 are connected by a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the terminal device 500 shown in FIG. 6 can implement various processes implemented by the network device in the foregoing method embodiments of FIG. 1 and FIG. 2, and details are not repeatedly described herein.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the foregoing method embodiments may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or the like. Programming logic devices, transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiment of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • non-volatile memory can Read-only memory (ROM), programmable read only memory (ROMM), erasable programmable read only memory (erasable PROM, EPROM), electrically erasable programmable read only memory ( Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-only memory
  • ROMM programmable read only memory
  • EPROM erasable programmable read only memory
  • Electrically EPROM, EEPROM electrically erasable programmable read only memory
  • flash memory electrically EPROM, EEPROM
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • RAM random access memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (synchronous DRAM).
  • SDRAM double data rate synchronous DRAM
  • DDR SDRAM double data rate synchronous DRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronously connected dynamic random access memory
  • DR RAM direct memory bus random access memory
  • first type of cell group and second type of cell group may be employed in the embodiments of the present invention, but these types of cell groups should not be limited to these terms. These terms are only used to distinguish types of cell groups from one another.
  • the words “at time” as used herein may be interpreted as “if” or “if” or “when” or “in response to determining” or “in response to detecting” ".
  • the phrase “if determined” or “if detected (conditions or events stated)” can be interpreted as “when determined” or “in response to determination” or “when detected (stated condition or event) "Time” or “in response to a test (condition or event stated)”.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • 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, 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 objectives of the embodiments of the present invention.
  • each functional unit in the embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product stored in a storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk.

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Abstract

提供了一种传输数据的方法、终端设备和网络设备。该方法包括：在无线链路层控制协议RLC层的协议数据单元PDU的重传次数大于或等于最大重传次数，并触发无线电链路故障RLF时，确定该PDU对应的小区组的类型，该PDU对应的小区组包括第一类型小区组和/或第二类型小区组，该第一类型小区组的类型和该第二类型小区组的类型不同；根据该PDU对应的小区组的类型处理该RLF。本发明实施例的传输数据的方法，针对DC场景下，在RLC层的PDU的重传次数大于或等于最大重传次数，且触发无线电链路故障RLF时，终端设备通过该PDU的传输场景，触发不同的RLF操作，能够有效提高传输上行数据的成功率。

Description

传输数据的方法、终端设备和网络设备 技术领域
本发明实施例涉及通信领域，并且更具体地，涉及一种传输数据的方法、终端设备和网络设备。
背景技术
无线链路层控制协议(Radio Link Control，RLC)层属于数据链路层，用于为用户和控制数据提供分段和重传业务。具体地，RLC层的功能是由RLC实体来实现的。一个RLC实体可以配置成以下3种模式中的任意一种：透明模式确认(Transparent Mode，TM)，非确认模式(Unacknowledged Mode，UM)和确认模式(Acknowledged Mode，AM)。其中，AM模式提供了所有的RLC功能，能够通过出错检测和重传，有效提高数据传输的可靠性。
在长期演进(Long Term Evolution，LTE)技术中，UE对主小区组(MCG)以及辅小区组(SCG)的RLC层发生的最大重传次数都会触发无线电链路故障(Radio Link Failure，RLF)；在处理RLF时，如果是MCG，则会发生释放RRC连接(RRC connection release)或者重建RRC连接(RRC connection re-establishment)，如果是SCG，则会挂起(pending，即缓存在buffer中)所有的SCG传输。
可以发现，现有的技术方案有可能会出现上行数据传输失败，降低数据传输的成功率。例如，当配置数据(DRB)或者信令(SRB)只在SCG传输时，若SCG故障，会导致上行传输失败。
发明内容
提供了一种传输数据的方法、终端设备和网络设备，能够有效提高传输数据的成功率。
第一方面，提供了一种传输数据的方法，所述方法包括：
在无线链路层控制协议RLC层的协议数据单元PDU的重传次数大于或等于最大重传次数，并触发无线电链路故障RLF时，确定所述PDU对应的小区组的类型，所述PDU对应的小区组包括第一类型小区组和/或第二类型小区组，所述第一类型小区组的类型和所述第二类型小区组的类型不同；
根据所述PDU对应的小区组的类型处理所述RLF。
本发明实施例的传输数据的方法，针对DC场景下，在RLC层的PDU的重传次数大于或等于最大重传次数，且触发无线电链路故障RLF时，终端设备通过该PDU的传输场景，触发不同的RLF操作，能够有效提高传输上行数据的成功率。
在一些可能的实现方式中，所述PDU的重传次数大于或等于所述最大重传次数，并触发所述RLF时，分组数据汇聚协议PDCP层的数据复制功能处于激活状态。
在一些可能的实现方式中，所述根据所述PDU对应的小区组的类型处理所述RLF，包括：
若所述PDU对应小区组为所述第一类型小区组，则重配置所述第一类型小区组的无线资源控制RRC连接。
在一些可能的实现方式中，所述若所述PDU对应的小区组为所述第一类型小区组，则重配置所述第一类型小区组的无线资源控制RRC连接，包括：
挂起所述第一类型小区组的信令无线承载SRB，并恢复所述第二类型小区组的SRB；
在所述第二类型小区组的SRB上，向所述网络设备发送所述第一类型小区组的RRC重配置信息。
本发明实施例中，终端设备通过在所述第二类型小区组的SRB上，向所述网络设备发送所述第一类型小区组的RRC重配置信息，能够有效提高传输上行数据的成功率。
在一些可能的实现方式中，所述PDU的重传次数大于或等于所述最大重传次数，并触发所述RLF时，分组数据汇聚协议PDCP层的数据复制功能处于关闭状态。
在一些可能的实现方式中，所述根据所述PDU对应的小区组的类型处理所述RLF，包括：
若所述PDU对应的小区组为所述第一类型小区组，则挂起所述第一类型小区组的数据无线承载DRB，并恢复所述第二类型小区组的DRB；
在所述第二类型小区组的DRB上，向网络设备发送所述PDU。
本发明实施例中，终端设备通过在所述第二类型小区组的DRB上，向 网络设备发送所述PDU，能够有效提高传输上行数据的成功率。
在一些可能的实现方式中，所述方法还包括：
重配置所述第一类型小区组的无线资源控制RRC连接。
在一些可能的实现方式中，所述重配置所述第一类型小区组的无线资源控制RRC连接，包括：
挂起所述第一类型小区组的信令无线承载SRB，并恢复所述第二类型小区组的SRB；
在所述第二类型小区组的SRB上，向所述网络设备发送所述第一类型小区组的RRC重配置信息。
在一些可能的实现方式中，所述根据所述PDU对应的小区组的类型处理所述RLF，包括：
若所述PDU对应的小区组为所述第二类型小区组，则释放所述第二类型小区组的无线资源控制RRC连接或者重建所述第二类型小区组的无线资源控制RRC连接。
在一些可能的实现方式中，所述第一类型小区组为辅小区组SCG，所述第二类型小区组为主小区组MCG。
在一些可能的实现方式中，所述确定所述PDU对应的小区组的类型之前，所述方法还包括：
接收网络设备发送的配置信息，所述配置信息用于终端设备确定所述PDU对应的小区组的类型；其中，所述确定所述PDU对应的小区组的类型，包括：
根据所述配置信息确定所述PDU对应的小区组的类型。
在一些可能的实现方式中，所述接收网络设备发送的配置信息，包括：
接收网络设备发送的无线资源控制RRC信令，所述RRC信令包括所述配置信息。
第二方面，提供了一种传输数据的方法，所述方法包括：
生成配置信息，所述配置信息用于终端设备确定协议数据单元PDU对应的小区组的类型，以便所述终端设备在所述PDU的重传次数大于或等于所述最大重传次数，并触发无线电链路故障RLF时，根据所述PDU对应的小区组的类型处理所述RLF，其中，所述PDU对应的小区组包括第一类型小区组和第二类型小区组，所述第一类型小区组的类型和所述第二类型小区 组的类型不同；
向所述终端设备发送所述配置信息。
在一些可能的实现方式中，所述向所述终端设备发送所述配置信息，包括：
向所述终端设备发送无线资源控制RRC信令，所述RRC信令包括所述配置信息。
第三方面，提供了一种终端设备，所述终端设备包括：
确定单元，用于在无线链路层控制协议RLC层的协议数据单元PDU的重传次数大于或等于最大重传次数，并触发无线电链路故障RLF时，确定所述PDU对应的小区组的类型，所述PDU对应的小区组包括第一类型小区组和/或第二类型小区组，所述第一类型小区组的类型和所述第二类型小区组的类型不同；
处理单元，用于根据所述PDU对应的小区组的类型处理所述RLF。
第四方面，提供了一种终端设备，所述终端设备包括处理器，所述处理器用于：
在无线链路层控制协议RLC层的协议数据单元PDU的重传次数大于或等于最大重传次数，并触发无线电链路故障RLF时，确定所述PDU对应的小区组的类型，所述PDU对应的小区组包括第一类型小区组和/或第二类型小区组，所述第一类型小区组的类型和所述第二类型小区组的类型不同；
根据所述PDU对应的小区组的类型处理所述RLF。
第五方面，提供了一种网络设备，所述网络设备包括：
生成单元，用于生成配置信息，所述配置信息用于终端设备确定协议数据单元PDU对应的小区组的类型，以便所述终端设备在所述PDU的重传次数大于或等于所述最大重传次数，并触发无线电链路故障RLF时，根据所述PDU对应的小区组的类型处理所述RLF，其中，所述PDU对应的小区组包括第一类型小区组和第二类型小区组，所述第一类型小区组的类型和所述第二类型小区组的类型不同；
发送单元，用于向所述终端设备发送所述配置信息。
第六方面，提供了一种网络设备，所述网络设备包括：
处理器，用于生成配置信息，所述配置信息用于终端设备确定协议数据单元PDU对应的小区组的类型，以便所述终端设备在所述PDU的重传次数 大于或等于所述最大重传次数，并触发无线电链路故障RLF时，根据所述PDU对应的小区组的类型处理所述RLF，其中，所述PDU对应的小区组包括第一类型小区组和第二类型小区组，所述第一类型小区组的类型和所述第二类型小区组的类型不同；
收发器，用于向所述终端设备发送所述配置信息。
第七方面，提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行上述第一方面或第二方面的方法实施例的指令。
第八方面，提供了一种计算机芯片，包括：输入接口、输出接口、至少一个处理器、存储器，所述处理器用于执行所述存储器中的代码，当所述代码被执行时，所述处理器可以实现上述第一方面或第二方面的传输数据的方法中由终端设备或者网络设备执行的各个过程。
第九方面，提供了一种通信系统，包括前述所述的网络设备，以及前述所述的终端设备。
附图说明
图1是本发明实施例的PDCP层的数据的传输方法的示意性流程图。
图2是本发明实施例的传输数据的方法的示意性流程图。
图3是本发明实施例的终端设备的示意性框图。
图4是本发明实施例的终端设备的另一示意性框图。
图5是本发明实施例的网络设备的示意性框图。
图6是本发明实施例的网络设备的另一示意性框图。
具体实施方式
下面将结合附图，对本发明实施例中的技术方案进行描述。
应理解，本发明实施例的技术方案可以应用于各种通信系统。例如，全球移动通讯(Global System ofMobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、5G通信系统、长期演进(Long Term Evolution，LTE)、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)等。
本发明结合网络设备和终端设备描述了各个实施例。
其中，网络设备可以是基站或者具有基站功能的网络侧设备。例如，网络设备可以是GSM系统或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolved Node B，eNB或eNodeB)，或者网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备等。
终端设备也可称为接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字线性处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它线性处理设备、车载设备、可穿戴设备等等。
基于新空口(New Radio NR)技术，在DC场景下，本发明实施例，提出了一种传输数据的方法，可以利用分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层的复制数据功能，进行数据复制(data duplication)传输。本发明实施例的数据传输的方法能够有效提高数据传输的可靠性。
下面结合图1对本发明实施例中DC场景下的复制数据的传输方法进行简单介绍。
图1是本发明实施例的PDCP层的数据的传输方法的示意性流程图。
如图1所示，PDCP层生成的数据(PDCP PDU和复制的PDCP PDU)分别传输到两个不同的RLC实体(RLC实体a和RLC实体b)，这两个不同的RLC实体分别对应不同的媒体介入控制(Media Access Control，MAC)层实体(MAC实体a和MAC实体b)映射到不同的小区组(MCG和SCG)。在本发明实施例中，PDCP层所生成的数据(PDCP PDU和PDCP PDU的复制数据)分别通过两个不同的RLC实体映射到不同的小区组，能够达到频率分集增益的目的，进而能够提高数据传输的可靠性。
具体地，每一子层会根据协议数据单元的数据的不同，发送到接收端的指定层。其中，进入每个子层未被处理的数据称为服务数据单元(service data unit，SDU)，经过子层处理后形成特定格式的数据被称为协议数据单元 (Protocol Data Unit，PDU)。也就是说，SDU是从高层协议传送到低层协议的信息单元，即，SDU的原数据是协议上层的PDU。换句话说，本层形成的PDU即为下一层的SDU。
例如，每个终端设备的每个逻辑信道都有一个RLC实体(RLC entity)，RLC实体从PDCP层接收到的数据，或发往PDCP层的数据可以称为RLC SDU(或PDCP PDU)。RLC实体从MAC层接收到的数据，或发往MAC层的数据可以称为RLC PDU(或MAC SDU)。
应理解，本发明实施例中，RLC层位于PDCP层和MAC层之间，RLC层可以通过服务接入点(Service Access Point，SAP)与PDCP层进行通信，并通过逻辑信道与MAC层进行通信。但本发明实施例不限于此。
但是，本发明实施例的传输数据的方法，如果SCG和MCG均不出现故障，终端设备可以通过频率分集增益的方式，提高数据传输可靠性。如果SCG和/或MCG出现故障，同样有可能导致数据传输失败，进而降低数据传输的成功率。例如，当配置数据(DRB)或者信令(SRB)在SCG传输时，若SCG故障，会导致传输失败。
因此，进一步地，本发明实施例中还提供了一种传输数据的方法，主要针对DC场景下，在RLC层的PDU的重传次数大于或等于最大重传次数，并触发无线电链路故障(Radio Link Failure，RLF)时，终端设备通过该PDU的传输场景，触发不同的RLF操作，能够有效提高传输上行数据的成功率。
应理解，本发明实施例中的RLC层的PDU的重传次数可以触发RLF。具体而言，MAC层的混合自动重传请求(hybrid automatic repeat request，HARQ)机制的目标在于实现非常快速的数据重传，其反馈出错率大概在1％左右。但是，对于某些业务，单独的MAC层的HARQ机制并不能达到传输要求。例如，TCP传输要求丢包率小于10-5。因此，可以通过RLC层的重传处理，进一步降低反馈出错率。
然而，为了避免RLC层无限制地重传数据，本发明实施例中定义了一个最大重传次数(maxRetxThreshold)。即，在RLC层的PDU的重传次数大于或等于该最大重传次数时，触发终端设备进行RLF操作。
具体而言，每个需要重传的AMD PDU(例如，首次传输的RLC SDU或者重传无须分段的RLC SDU)都有一个相关联的RETX_COUNT(计数)。当发送端(RRC层)认为，当AMD PDU或AMD PDU分段需要重传时， 如果该AMD PDU是第一次重传，则将该AMD PDU相关联的RETX_COUNT设置为0；如果不是第一次重传，并且该AMD PDU或AMD PDU分段并非已经处在等待重传的状态，则将RETX_COUNT加1；如果RETX_COUNT＝maxRetxThreshold，即达到了最大重传次数，则需要告诉上一层已经到了最大重传次数。
图2是本发明实施例的传输数据的方法100的示意性流程图。
如图2所示，该方法100包括：
110，在RLC层的PDU的重传次数大于或等于最大重传次数，并触发RLF时，确定该PDU上行数据对应的小区组的类型。
120，根据该PDU上行数据对应的小区组的类型处理该RLF。
具体而言，终端设备在RLC层的PDU的重传次数大于或等于最大重传次数，并触发RLF时，确定该PDU上行数据对应的小区组的类型，该PDU对应的小区组包括第一类型小区组和/或第二类型小区组，该第一类型小区组的类型和该第二类型小区组的类型不同；然后，根据该PDU对应的小区组的类型处理该RLF。
为便于理解，下面以SCG为第一类型小区组，以MCG为第二类型小区组进行示例性说明，但应理解，本发明实施例不局限于此。例如，该第一类型小区组也可以是任意形式的用于传输信令的物理层载波对应的小区组，该第二类型小区组可以是任意形式的用于传输信令和数据的物理层载波对应的小区组。
需要注意的是，本发明实施例中，在DC场景下，主小区组(MCG)以及辅小区组(SCG)的RLC层发生的最大重传次数都可以触发RLF。也就是说，MCG对应的RLC实体的PDU的重传次数大于或等于最大重传次数时，可以触发RLF；SCG对应的RLC实体的PDU的重传次数大于或等于最大重传次数时，也可以触发RLF。
其中，本发明实施例中的小区组可以与物理层载波一一对应。也就是说，本发明实施例中的该PDU对应的小区组可以理解为用于传输该PDU的物理层载波对应的小区组。例如，PDU对应的小区组为MCG，可以理解为用于传输该PDU的物理层载波对应的小区组为MCG。
下面分别针对PDCP在不同场景下，第一类型小区组对应的RLC实体的PDU的重传次数，大于或等于该最大重传次数，并触发该RLF时；终端 设备处理RLF的方法进行说明。
作为一个实施例，该PDU的重传次数大于或等于该最大重传次数，并触发该RLF时，PDCP层的数据复制功能处于激活状态。换句话说，本发明实施例适用于DC的SRB复制(duplication)场景。具体地，不同的RLC实体的PDU对应不同的小区组，且某个AMD PDU的重传次数大于或等于最大重传次数。
可选地，若该PDU对应小区组为该第一类型小区组，则重配置该第一类型小区组的RRC连接。具体而言，终端设备挂起该第一类型小区组的信令无线承载(Signaling Radio Bearer，SRB)，并恢复该第二类型小区组的SRB；在该第二类型小区组的SRB上，向该网络设备发送该第一类型小区组的RRC重配置信息。其中，该RRC重配置信息可以包括该第一类型小区组的失败信息。
例如，假设该第一类型小区组为SCG，该第二类型小区组为MCG。则SCG对应的RLC实体的PDU的重传次数大于或等于该最大重传次数，并触发该RLF时；终端设备重配置该SCG的RRC连接。具体地，终端设备挂起该SCG的SRB，并恢复MCG的SRB；在该MCG的SRB上，向该网络设备发送该SCG的RRC重配置信息。其中，该RRC重配置信息可以包括该SCG的失败信息。
可选地，若该PDU对应的小区组为该第二类型小区组，则释放该第二类型小区组的无线资源控制RRC连接或者重建该第二类型小区组的无线资源控制RRC连接。
例如，假设该第二类型小区组为MCG，则MCG对应的RLC实体的PDU的重传次数大于或等于该最大重传次数，并触发该RLF时；终端设备释放该MCG的RRC连接或者重建该MCG的RRC连接。
作为另一个实施例，该PDU的重传次数大于或等于该最大重传次数，并触发该RLF时，PDCP层的数据复制功能处于关闭状态。换句话说，本发明实施例适用于DC的DRB复制(duplication)场景。具体地，不同的RLC实体的PDU对应不同的小区组，且某个AMD PDU的重传次数大于或等于最大重传次数。
可选地，若该PDU对应的小区组为该第一类型小区组，终端设备挂起该第一类型小区组的数据无线承载(data radio bearer，DRB)，并恢复该第二 类型小区组的DRB；在该第二类型小区组的DRB上，向网络设备发送该PDU。可选地，终端设备还可以重配置该第一类型小区组的无线资源控制RRC连接。具体地，终端设备可以挂起该第一类型小区组的SRB，并恢复该第二类型小区组的SRB；在该第二类型小区组的SRB上，向该网络设备发送该第一类型小区组的RRC重配置信息。
例如，假设该第一类型小区组为SCG，该第二类型小区组为MCG。则SCG对应的RLC实体的PDU的重传次数大于或等于该最大重传次数，并触发该RLF时；终端设备可以挂起该SCG的DRB，并恢复MCG的DRB；在该MCG的DRB上，向网络设备发送该PDU。可选地，终端设备还可以重配置该SCG的RRC连接。具体地，终端设备挂起该SCG的SRB，并恢复MCG的SRB；在该MCG的SRB上，向该网络设备发送该SCG的RRC重配置信息。其中，该RRC重配置信息可以包括该SCG的失败信息。
在本发明实施例中，可选地，若该PDU对应的小区组为该第二类型小区组，则释放该第二类型小区组的无线资源控制RRC连接或者重建该第二类型小区组的无线资源控制RRC连接。
具体而言，针对PDCP在不同场景下，第二类型小区组对应的RLC实体的PDU的重传次数，大于或等于该最大重传次数，并触发该RLF时；终端设备都可以释放该第二类型小区组的RRC连接或者重建该第二类型小区组的RRC连接。
例如，假设该第二类型小区组为MCG。不管PDCP层的数据复制功能处于激活状态，还是PDCP层的数据复制功能处于激活状态，如果MCG对应的RLC实体的PDU的重传次数大于或等于该最大重传次数，并触发该RLF时；那么，终端设备都可以释放该MCG的RRC连接或者重建该MCG的RRC连接。应理解，释放RRC连接以及重建RRC连接可以使用现有的释放方法或者重建方法，本发明实施例不做具体限定。
在本发明实施例中，可选地，终端设备在确定该PDU对应的小区组的类型之前，还可以接收网络设备发送的配置信息，该配置信息用于终端设备确定该PDU对应的小区组的类型；然后，终端设备根据该配置信息确定该PDU对应的小区组的类型。
换句话说，网络设备向终端设备发送配置信息，该配置信息用于该终端设备确定协议数据单元PDU对应的小区组的类型，以便该终端设备在该 PDU的重传次数大于或等于该最大重传次数，并触发无线电链路故障RLF时，根据该PDU对应的小区组的类型处理该RLF；
其中，该PDU对应的小区组包括第一类型小区组和第二类型小区组，该第一类型小区组的类型和该第二类型小区组的类型不同。
可选地，终端设备接收网络设备发送的无线资源控制RRC信令，该RRC信令包括该配置信息。换句话说，网络设备向终端设备发送无线资源控制RRC信令，该RRC信令包括该配置信息。
图3是本发明实施例的终端设备200的示意性框图。
如图3所示，该终端设备200包括：
确定单元210，用于在无线链路层控制协议RLC层的协议数据单元PDU的重传次数大于或等于最大重传次数，并触发无线电链路故障RLF时，确定该PDU对应的小区组的类型，该PDU对应的小区组包括第一类型小区组和/或第二类型小区组，该第一类型小区组的类型和该第二类型小区组的类型不同；处理单元220，用于根据该PDU对应的小区组的类型处理该RLF。
可选地，该PDU的重传次数大于或等于该最大重传次数，并触发该RLF时，分组数据汇聚协议PDCP层的数据复制功能处于激活状态。
可选地，该处理单元220具体用于：
若该PDU对应小区组为该第一类型小区组，则重配置该第一类型小区组的无线资源控制RRC连接。
可选地，该处理单元220更具体用于：
挂起该第一类型小区组的信令无线承载SRB，并恢复该第二类型小区组的SRB；在该第二类型小区组的SRB上，向该网络设备发送该第一类型小区组的RRC重配置信息。
可选地，该PDU的重传次数大于或等于该最大重传次数，并触发该RLF时，分组数据汇聚协议PDCP层的数据复制功能处于关闭状态。
可选地，该处理单元220具体用于：
若该PDU对应的小区组为该第一类型小区组，则挂起该第一类型小区组的数据无线承载DRB，并恢复该第二类型小区组的DRB；在该第二类型小区组的DRB上，向网络设备发送该PDU。
可选地，该处理单元220还用于：
重配置该第一类型小区组的无线资源控制RRC连接。
可选地，该处理单元220具体用于：
挂起该第一类型小区组的信令无线承载SRB，并恢复该第二类型小区组的SRB；在该第二类型小区组的SRB上，向该网络设备发送该第一类型小区组的RRC重配置信息。
可选地，该处理单元220具体用于：
若该PDU对应的小区组为该第二类型小区组，则释放该第二类型小区组的无线资源控制RRC连接或者重建该第二类型小区组的无线资源控制RRC连接。
可选地，该第一类型小区组为辅小区组SCG，该第二类型小区组为主小区组MCG。
可选地，该终端设备还包括：
接收单元，用于在确定该PDU对应的小区组的类型之前，接收网络设备发送的配置信息，该配置信息用于终端设备确定该PDU对应的小区组的类型；其中，确定单元210具体用于：
根据该配置信息确定该PDU对应的小区组的类型。
可选地，该接收单元具体用于：
接收网络设备发送的无线资源控制RRC信令，该RRC信令包括该配置信息。
应注意，本发明实施例中，确定单元210和处理单元220可以由处理器实现，接收单元可由收发器实现。如图4所示，终端设备300可以包括处理器310、收发器320和存储器330。其中，存储器330可以用于存储指示信息，还可以用于存储处理器310执行的代码、指令等。终端设备300中的各个组件通过总线系统相连，其中，总线系统除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。
图4所示的终端设备300能够实现前述图1和图2的方法实施例中由终端设备所实现的各个过程，为避免重复，这里不再赘述。
图5是本发明实施例的网络设备400的示意性框图。
如图3所示，该网络设备400包括：
生成单元410，用于生成配置信息，该配置信息用于终端设备确定协议数据单元PDU对应的小区组的类型，以便该终端设备在该PDU的重传次数大于或等于该最大重传次数，并触发无线电链路故障RLF时，根据该PDU 对应的小区组的类型处理该RLF，其中，该PDU对应的小区组包括第一类型小区组和第二类型小区组，该第一类型小区组的类型和该第二类型小区组的类型不同；
发送单元420，用于向该终端设备发送该配置信息。
可选地，该发送单元420具体用于：
向该终端设备发送无线资源控制RRC信令，该RRC信令包括该配置信息。
应注意，本发明实施例中，生成单元410可以由处理器实现，发送单元420可由收发器实现。如图6所示，网络设备500可以包括处理器510、收发器520和存储器530。其中，存储器530可以用于存储指示信息，还可以用于存储处理器510执行的代码、指令等。网络设备500中的各个组件通过总线系统相连，其中，总线系统除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。
图6所示的终端设备500能够实现前述图1和图2的方法实施例中由网络设备所实现的各个过程，为避免重复，这里不再赘述。
应注意，本发明实施例中的方法实施例可以应用于处理器中，或者由处理器实现。处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本发明实施例中，存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以 是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如，静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
最后，需要注意的是，在本发明实施例和所附权利要求书中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明实施例。
例如，在本发明实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
又例如，在本发明实施例中可能采用术语第一类型小区组和第二类型小区组，但这些类型小区组不应限于这些术语。这些术语仅用来将类型小区组彼此区分开。
又例如，取决于语境，如在此所使用的词语“在……时”可以被解释成为“如果”或“若”或“当……时”或“响应于确定”或“响应于检测”。类似地，取决于语境，短语“如果确定”或“如果检测(陈述的条件或事件)”可以被解释成为“当确定时”或“响应于确定”或“当检测(陈述的条件或事件)时”或“响应于检测(陈述的条件或事件)”。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明实施例的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本发明实施例的目的。
另外，在本发明实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
以上内容，仅为本发明实施例的具体实施方式，但本发明实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明实施例的保护范围之内。因此，本发明实施例的保护范围应以权利要求的保护范围为准。

Claims (28)

  1. 一种传输数据的方法，其特征在于，包括：
    在无线链路层控制协议RLC层的协议数据单元PDU的重传次数大于或等于最大重传次数，并触发无线电链路故障RLF时，确定所述PDU对应的小区组的类型，所述PDU对应的小区组包括第一类型小区组和/或第二类型小区组，所述第一类型小区组的类型和所述第二类型小区组的类型不同；
    根据所述PDU对应的小区组的类型处理所述RLF。
  2. 根据权利要求1所述的方法，其特征在于，所述PDU的重传次数大于或等于所述最大重传次数，并触发所述RLF时，分组数据汇聚协议PDCP层的数据复制功能处于激活状态。
  3. 根据权利要求2所述的方法，其特征在于，所述根据所述PDU对应的小区组的类型处理所述RLF，包括：
    若所述PDU对应小区组为所述第一类型小区组，则重配置所述第一类型小区组的无线资源控制RRC连接。
  4. 根据权利要求3所述的方法，其特征在于，所述若所述PDU对应的小区组为所述第一类型小区组，则重配置所述第一类型小区组的无线资源控制RRC连接，包括：
    挂起所述第一类型小区组的信令无线承载SRB，并恢复所述第二类型小区组的SRB；
    在所述第二类型小区组的SRB上，向所述网络设备发送所述第一类型小区组的RRC重配置信息。
  5. 根据权利要求1所述的方法，其特征在于，所述PDU的重传次数大于或等于所述最大重传次数，并触发所述RLF时，分组数据汇聚协议PDCP层的数据复制功能处于关闭状态。
  6. 根据权利要求5所述的方法，其特征在于，所述根据所述PDU对应的小区组的类型处理所述RLF，包括：
    若所述PDU对应的小区组为所述第一类型小区组，则挂起所述第一类型小区组的数据无线承载DRB，并恢复所述第二类型小区组的DRB；
    在所述第二类型小区组的DRB上，向网络设备发送所述PDU。
  7. 根据权利要求4所述的方法，其特征在于，所述方法还包括：
    重配置所述第一类型小区组的无线资源控制RRC连接。
  8. 根据权利要求7所述的方法，其特征在于，所述重配置所述第一类型小区组的无线资源控制RRC连接，包括：
    挂起所述第一类型小区组的信令无线承载SRB，并恢复所述第二类型小区组的SRB；
    在所述第二类型小区组的SRB上，向所述网络设备发送所述第一类型小区组的RRC重配置信息。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述根据所述PDU对应的小区组的类型处理所述RLF，包括：
    若所述PDU对应的小区组为所述第二类型小区组，则释放所述第二类型小区组的无线资源控制RRC连接或者重建所述第二类型小区组的无线资源控制RRC连接。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，所述第一类型小区组为辅小区组SCG，所述第二类型小区组为主小区组MCG。
  11. 根据权利要求1至10中任一项所述的方法，其特征在于，所述确定所述PDU对应的小区组的类型之前，所述方法还包括：
    接收网络设备发送的配置信息，所述配置信息用于终端设备确定所述PDU对应的小区组的类型；其中，所述确定所述PDU对应的小区组的类型，包括：
    根据所述配置信息确定所述PDU对应的小区组的类型。
  12. 根据权利要求11所述的方法，其特征在于，所述接收网络设备发送的配置信息，包括：
    接收网络设备发送的无线资源控制RRC信令，所述RRC信令包括所述配置信息。
  13. 一种传输数据的方法，其特征在于，包括：
    生成配置信息，所述配置信息用于终端设备确定协议数据单元PDU对应的小区组的类型，以便所述终端设备在所述PDU的重传次数大于或等于所述最大重传次数，并触发无线电链路故障RLF时，根据所述PDU对应的小区组的类型处理所述RLF，其中，所述PDU对应的小区组包括第一类型小区组和第二类型小区组，所述第一类型小区组的类型和所述第二类型小区组的类型不同；
    向所述终端设备发送所述配置信息。
  14. 根据权利要求13所述的方法，其特征在于，所述向所述终端设备发送所述配置信息，包括：
    向所述终端设备发送无线资源控制RRC信令，所述RRC信令包括所述配置信息。
  15. 一种终端设备，其特征在于，包括：
    确定单元，用于在无线链路层控制协议RLC层的协议数据单元PDU的重传次数大于或等于最大重传次数，并触发无线电链路故障RLF时，确定所述PDU对应的小区组的类型，所述PDU对应的小区组包括第一类型小区组和/或第二类型小区组，所述第一类型小区组的类型和所述第二类型小区组的类型不同；
    处理单元，用于根据所述PDU对应的小区组的类型处理所述RLF。
  16. 根据权利要求15所述的终端设备，其特征在于，所述PDU的重传次数大于或等于所述最大重传次数，并触发所述RLF时，分组数据汇聚协议PDCP层的数据复制功能处于激活状态。
  17. 根据权利要求15所述的终端设备，其特征在于，所述处理单元具体用于：
    若所述PDU对应小区组为所述第一类型小区组，则重配置所述第一类型小区组的无线资源控制RRC连接。
  18. 根据权利要求17所述的终端设备，其特征在于，所述处理单元更具体用于：
    挂起所述第一类型小区组的信令无线承载SRB，并恢复所述第二类型小区组的SRB；
    在所述第二类型小区组的SRB上，向所述网络设备发送所述第一类型小区组的RRC重配置信息。
  19. 根据权利要求15所述的终端设备，其特征在于，所述PDU的重传次数大于或等于所述最大重传次数，并触发所述RLF时，分组数据汇聚协议PDCP层的数据复制功能处于关闭状态。
  20. 根据权利要求19所述的终端设备，其特征在于，所述处理单元具体用于：
    若所述PDU对应的小区组为所述第一类型小区组，则挂起所述第一类 型小区组的数据无线承载DRB，并恢复所述第二类型小区组的DRB；
    在所述第二类型小区组的DRB上，向网络设备发送所述PDU。
  21. 根据权利要求20所述的终端设备，其特征在于，所述处理单元还用于：
    重配置所述第一类型小区组的无线资源控制RRC连接。
  22. 根据权利要求21所述的终端设备，其特征在于，所述处理单元具体用于：
    挂起所述第一类型小区组的信令无线承载SRB，并恢复所述第二类型小区组的SRB；
    在所述第二类型小区组的SRB上，向所述网络设备发送所述第一类型小区组的RRC重配置信息。
  23. 根据权利要求15至22中任一项所述的终端设备，其特征在于，所述处理单元具体用于：
    若所述PDU对应的小区组为所述第二类型小区组，则释放所述第二类型小区组的无线资源控制RRC连接或者重建所述第二类型小区组的无线资源控制RRC连接。
  24. 根据权利要求15至23中任一项所述的终端设备，其特征在于，所述第一类型小区组为辅小区组SCG，所述第二类型小区组为主小区组MCG。
  25. 根据权利要求15至24中任一项所述的终端设备，其特征在于，所述终端设备还包括：
    接收单元，用于在确定所述PDU对应的小区组的类型之前，接收网络设备发送的配置信息，所述配置信息用于终端设备确定所述PDU对应的小区组的类型；其中，所述确定单元具体用于：
    根据所述配置信息确定所述PDU对应的小区组的类型。
  26. 根据权利要求25所述的终端设备，其特征在于，所述接收单元具体用于：
    接收网络设备发送的无线资源控制RRC信令，所述RRC信令包括所述配置信息。
  27. 一种传输数据的网络设备，其特征在于，包括：
    生成单元，用于生成配置信息，所述配置信息用于终端设备确定协议数据单元PDU对应的小区组的类型，以便所述终端设备在所述PDU的重传次 数大于或等于所述最大重传次数，并触发无线电链路故障RLF时，根据所述PDU对应的小区组的类型处理所述RLF，其中，所述PDU对应的小区组包括第一类型小区组和第二类型小区组，所述第一类型小区组的类型和所述第二类型小区组的类型不同；
    发送单元，用于向所述终端设备发送所述配置信息。
  28. 根据权利要求27所述的网络设备，其特征在于，所述发送单元具体用于：
    向所述终端设备发送无线资源控制RRC信令，所述RRC信令包括所述配置信息。
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7301065B2 (ja) * 2018-10-30 2023-06-30 京セラ株式会社 無線通信方法及び装置
CN111465119B (zh) * 2019-03-28 2023-02-24 维沃移动通信有限公司 数据发送方法、信息配置方法、终端及网络设备
WO2021168805A1 (en) * 2020-02-28 2021-09-02 Qualcomm Incorporated Handling errors in feedback messages
CN115777184A (zh) * 2020-06-29 2023-03-10 华为技术有限公司 一种数据重传方法和装置
CN115412970A (zh) * 2021-05-28 2022-11-29 华为技术有限公司 一种通信方法及装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110242970A1 (en) * 2010-04-05 2011-10-06 Qualcomm Incorporated Methods and apparatus to facilitate relay startup and radio link failure (rlf) handling
CN103581941A (zh) * 2012-07-31 2014-02-12 电信科学技术研究院 一种无线链路失败rlf的处理方法及系统
CN105101253A (zh) * 2014-05-09 2015-11-25 上海贝尔股份有限公司 在双连接系统中使用的方法、主基站和用户设备
US20150373754A1 (en) * 2013-03-26 2015-12-24 China Academy Of Telecommunications Technology Network optimization method, device and system for radio link failure
CN106134261A (zh) * 2014-01-29 2016-11-16 三星电子株式会社 移动通信系统中基于多载波的数据发射方法和设备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102037389B1 (ko) * 2013-04-05 2019-10-28 주식회사 팬택 이중 연결성을 지원하는 무선 통신 시스템에서 무선링크 제어 방법 및 그 장치
WO2015020321A1 (en) * 2013-08-08 2015-02-12 Lg Electronics Inc. Method and apparatus for performing operation related to radio link failure in a heterogeneous network
KR102257628B1 (ko) * 2013-10-21 2021-05-28 엘지전자 주식회사 이중 연결성에서의 상향링크 데이터 전송 방법 및 이를 위한 장치
JP6445032B2 (ja) * 2013-11-01 2018-12-26 サムスン エレクトロニクス カンパニー リミテッド ベアラを再構成する方法及び装置
US10244444B2 (en) * 2015-03-04 2019-03-26 Qualcomm Incorporated Dual link handover
US20180367288A1 (en) * 2017-06-16 2018-12-20 Huawei Technologies Co., Ltd. Dynamic activation and deactivation of packet duplication
EP3661316B1 (en) * 2017-07-24 2021-09-08 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for processing radio link failure, and terminal device
EP3606134B1 (en) * 2017-07-24 2021-03-31 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Methods for processing radio link failure, and terminal device
WO2020060224A1 (en) * 2018-09-19 2020-03-26 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving data in wireless communication system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110242970A1 (en) * 2010-04-05 2011-10-06 Qualcomm Incorporated Methods and apparatus to facilitate relay startup and radio link failure (rlf) handling
CN103581941A (zh) * 2012-07-31 2014-02-12 电信科学技术研究院 一种无线链路失败rlf的处理方法及系统
US20150373754A1 (en) * 2013-03-26 2015-12-24 China Academy Of Telecommunications Technology Network optimization method, device and system for radio link failure
CN106134261A (zh) * 2014-01-29 2016-11-16 三星电子株式会社 移动通信系统中基于多载波的数据发射方法和设备
CN105101253A (zh) * 2014-05-09 2015-11-25 上海贝尔股份有限公司 在双连接系统中使用的方法、主基站和用户设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3611954A4 *

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