WO2020097850A1 - Procédé et appareil de transmission de données - Google Patents

Procédé et appareil de transmission de données Download PDF

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Publication number
WO2020097850A1
WO2020097850A1 PCT/CN2018/115628 CN2018115628W WO2020097850A1 WO 2020097850 A1 WO2020097850 A1 WO 2020097850A1 CN 2018115628 W CN2018115628 W CN 2018115628W WO 2020097850 A1 WO2020097850 A1 WO 2020097850A1
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WO
WIPO (PCT)
Prior art keywords
access network
network device
protocol entity
terminal
data
Prior art date
Application number
PCT/CN2018/115628
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English (en)
Chinese (zh)
Inventor
尤心
卢前溪
Original Assignee
Oppo广东移动通信有限公司
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.)
Filing date
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/CN2018/115628 priority Critical patent/WO2020097850A1/fr
Priority to CN201880092575.7A priority patent/CN111989949B/zh
Publication of WO2020097850A1 publication Critical patent/WO2020097850A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements

Definitions

  • the invention relates to wireless communication technology, in particular to a data transmission method and device.
  • the terminal and the access network device maintain a set of protocol stacks at the same time, and also correspond to only one Packet Data Convergence Protocol (PDCP) entity.
  • the terminal is either connected to the source access network device and only maintains the protocol stack with the source access network device for data transmission with the source access network device, or is connected to the target access network device and maintains only the target access network device Protocol stack, data transmission with target access network equipment.
  • PDCP Packet Data Convergence Protocol
  • NR New Radio
  • Simultaneous Connectivity switching method is proposed.
  • the terminal can simultaneously communicate with The source access network device and the target access network device are connected to maintain a protocol stack with the source access network device and a protocol stack with the target access network device, respectively.
  • Various aspects of the present invention provide a data transmission method and device for implementing data transmission in a simultaneous connection switching mode.
  • An aspect of the present invention provides a data transmission method, including:
  • the transmission data of the terminal is switched from the first transmission mode to the second transmission mode.
  • Another aspect of the present invention provides a data transmission device, including:
  • the switching unit is configured to switch the transmission data of the terminal from the first transmission mode to the second transmission mode during the switching process.
  • one of the transmission modes is to simultaneously connect two access network devices, namely the first For the access network device and the second access network device, uplink data or downlink data is transmitted between the terminal, the first access network device, and the second access network device, thereby realizing data in the simultaneous connection switching mode transmission.
  • FIG. 1 is a schematic flowchart of a data transmission method according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a data transmission device according to another embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a data transmission method according to an embodiment of the present invention, as shown in FIG. 1.
  • the first transmission mode may be a transmission mode used for data transmission when the terminal is connected to the first access network device
  • the second transmission mode may be the terminal and the first access network at the same time
  • the transmission mode used for data transmission may be a transmission mode used for data transmission when the terminal is connected to the first access network device
  • the second access network device may be one access network device, or may also be multiple access network devices, which is not particularly limited in this embodiment.
  • the access signal with the strongest signal among the multiple second access network devices may be selected for data transmission, or it may be directly selected All the access network devices in the plurality of second access network devices perform data transmission.
  • the access network equipment involved in the present invention may be an evolved base station (Evolved) in the Evolved Universal Mobile Communication System Terrestrial Radio Access Network (Evolved Universal Mobile Telecommunication System Territorial Access Network, E-UTRAN) NodeB, eNB), or may also be a 5G base station in the next generation radio access network (Next-Generation-Radio Access Network, NG-RAN), that is, gNB, etc.
  • E-UTRAN Evolved Universal Mobile Communication System Terrestrial Radio Access Network
  • NG-RAN next generation radio access network
  • the first access network device may be a source access network device
  • the second access network device may be a target access network device
  • the core idea of the present invention is that in the simultaneous connection (Simultaneous Connectivity) switching mode, the terminal can simultaneously maintain the protocol stacks with the source access network device and the target access network device, respectively.
  • the transmission data is switched from the first transmission mode to the second transmission mode.
  • One of the transmission modes is to simultaneously connect two access network devices, namely the first access network device and the second access network device. Uplink data or downlink data is transmitted between the network access device and the second access network device, thereby achieving data transmission in the simultaneous connection switching mode.
  • the data transmission entity of the first transmission mode may include but is not limited to at least one of the following entities: the terminal, the protocol entity in the terminal , The first access network device, the protocol entity in the first access network device, the second access network device and the protocol entity in the second access network device; accordingly, the data transmission entity of the second transmission mode It may include but is not limited to at least one of the following entities: the terminal, the protocol entity in the terminal, the first access network device, the protocol entity in the first access network device, the second access network device and The protocol entity in the second access network device is not particularly limited in this embodiment.
  • the data receiving entity of the first transmission mode may include but is not limited to at least one of the following entities: the terminal, a protocol entity in the terminal , The first access network device, the protocol entity in the first access network device, the second access network device and the protocol entity in the second access network device; accordingly, the data receiving entity of the second transmission mode May include but not limited to at least one of the following entities: terminal, protocol entity in terminal, first access network device, protocol entity in first access network device, second access network device and second access
  • the protocol entity in the network device is not particularly limited in this embodiment.
  • the terminal may perform uplink data transmission with the first access network device, or may also perform uplink data transmission with the second access network device, which is not particularly limited in this embodiment.
  • the terminal may specifically send the first uplink data to the first access network device.
  • the first access network device may send the first uplink data to the second access network device through the X2 interface or the first receiving protocol entity of the first access network device.
  • the first receiving protocol entity of the first access network device may include, but is not limited to, a physical (PHY) layer protocol entity, a media access control (Media Access Control, MAC) layer protocol entity, and a wireless link control ( Ratio Link Control (RLC) layer protocol entity and Packet Data Convergence Protocol (PDCP) layer protocol entity, at least one of which is not specifically limited in this embodiment.
  • PHY physical
  • MAC media access control
  • RLC Ratio Link Control
  • PDCP Packet Data Convergence Protocol
  • the first receiving protocol entities are a PHY layer protocol entity, a MAC layer protocol entity, an RLC layer protocol entity, and a PDCP layer protocol entity in this order from bottom to top.
  • the terminal may specifically send the first uplink data to the first access network device.
  • the first access network device may send the first uplink data to the second access network device through the X2 interface.
  • the terminal may specifically send the first uplink data to the first access network device.
  • the first access network device may send the first uplink data to the second access network device through the RLC layer protocol entity of the first access network device.
  • the terminal may specifically send the first uplink data to the second access network device.
  • the second access network device may send the first uplink data to the first access network device through the X2 interface or the first receiving protocol entity of the second access network device.
  • the second receiving protocol entity of the second access network device may include, but is not limited to, a physical (PHY) layer protocol entity, a media access control (Media Access Control, MAC) layer protocol entity, and a wireless link control ( Ratio Link Control (RLC) layer protocol entity and Packet Data Convergence Protocol (PDCP) layer protocol entity, at least one of which is not specifically limited in this embodiment.
  • PHY physical
  • MAC media access control
  • RLC Ratio Link Control
  • PDCP Packet Data Convergence Protocol
  • the second receiving protocol entities are, in order from bottom to top, a PHY layer protocol entity, a MAC layer protocol entity, an RLC layer protocol entity, and a PDCP layer protocol entity.
  • the terminal may specifically send second uplink data to the second access network device.
  • the second access network device may send the second uplink data to the first access network device through the X2 interface.
  • the terminal may specifically send the first uplink data to the second access network device.
  • the second access network device may send the second uplink data to the first access network device through the RLC layer protocol entity of the second access network device.
  • the terminal may specifically send the first uplink data to the first access network device.
  • the first receiving protocol entity of the first access network device copies the first uplink data after successfully receiving the first uplink data, and then, the first access network device may The receiving protocol entity sends the first uplink data to the upper layer receiving protocol entity of the first receiving protocol entity of the first access network device and the second access network device, respectively.
  • the first receiving protocol entity of the first access network device may include, but is not limited to, a physical (PHY) layer protocol entity, a media access control (Media Access Control, MAC) layer protocol entity, and a wireless link control ( Ratio Link Control (RLC) layer protocol entity and Packet Data Convergence Protocol (PDCP) layer protocol entity, at least one of which is not specifically limited in this embodiment.
  • PHY physical
  • MAC media access control
  • RLC Ratio Link Control
  • PDCP Packet Data Convergence Protocol
  • the first receiving protocol entities are a PHY layer protocol entity, a MAC layer protocol entity, an RLC layer protocol entity, and a PDCP layer protocol entity in this order from bottom to top.
  • the terminal may specifically send the first uplink data to the first access network device.
  • the RLC layer protocol entity of the first access network device copies the first uplink data after successfully receiving the first uplink data, and then, the RLC layer protocol of the first access network device
  • the entity sends the first uplink data to the PDCP layer protocol entity of the first access network device and the second access network device, respectively.
  • the terminal may specifically send the first uplink data to the second access network device.
  • the first uplink data is copied, and then, the second access network device may be copied by the second The receiving protocol entity sends the first uplink data to the upper layer receiving protocol entity of the second receiving protocol entity of the second access network device and the first access network device, respectively.
  • the second receiving protocol entity of the second access network device may include, but is not limited to, a physical (PHY) layer protocol entity, a media access control (Media Access Control, MAC) layer protocol entity, and a wireless link control ( Ratio Link Control (RLC) layer protocol entity and Packet Data Convergence Protocol (PDCP) layer protocol entity, at least one of which is not specifically limited in this embodiment.
  • PHY physical
  • MAC media access control
  • RLC Ratio Link Control
  • PDCP Packet Data Convergence Protocol
  • the second receiving protocol entities are, in order from bottom to top, a PHY layer protocol entity, a MAC layer protocol entity, an RLC layer protocol entity, and a PDCP layer protocol entity.
  • the terminal may specifically send the first uplink data to the second access network device.
  • the first uplink data is copied, and then, the RLC layer protocol of the second access network device
  • the entity sends the first uplink data to the PDCP layer protocol entity of the second access network device and the first access network device, respectively.
  • the terminal may specifically send first uplink data to the first access network device and the second access network device, or may also send the first uplink data to the first access network
  • the device sends first uplink data, and sends second uplink data to the second access network device.
  • the sending protocol entity of the terminal copies the first uplink data, and then, the sending protocol entity of the terminal sends the first uplink data to an upper layer receiving protocol entity of the sending protocol entity of the terminal, by The upper layer receiving protocol entity of the sending protocol entity of the terminal sends the first uplink data to the first access network device and the second access network device, respectively.
  • the uplink data that is, the first uplink data and the second uplink data
  • the uplink data may be at least one of data that is not correctly sent by the terminal and data to be sent by the terminal. This embodiment compares There is no particular limitation.
  • the terminal may transmit downlink data with the first access network device, or may also transmit downlink data with the second access network device, which is not particularly limited in this embodiment.
  • the terminal may specifically receive the first downlink data sent by the first access network device and the second access network device, or sent by the second access network device .
  • the first downlink data may be sent by the first access network device to the second access network device through the X2 interface or the first sending protocol entity of the first access network device, or
  • the second access network device may send to the first access network device through the X2 interface or the second transmission protocol entity of the second access network device, which is not particularly limited in this embodiment.
  • the first sending protocol entity of the first access network device may include, but is not limited to, a physical (PHY) layer protocol entity, a media access control (Media Access Control, MAC) layer protocol entity, and a wireless link control ( Ratio Link Control (RLC) layer protocol entity and Packet Data Convergence Protocol (PDCP) layer protocol entity, at least one of which is not specifically limited in this embodiment.
  • PHY physical
  • MAC media access control
  • RLC Ratio Link Control
  • PDCP Packet Data Convergence Protocol
  • the first sending protocol entities are, in order from bottom to top, a PHY layer protocol entity, a MAC layer protocol entity, an RLC layer protocol entity, and a PDCP layer protocol entity.
  • the second transmission protocol entity of the second access network device may include, but is not limited to, a physical (PHY) layer protocol entity, a media access control (Media Access Control, MAC) layer protocol entity, and a wireless link control ( Ratio Link Control (RLC) layer protocol entity and Packet Data Convergence Protocol (PDCP) layer protocol entity, at least one of which is not specifically limited in this embodiment.
  • PHY physical
  • MAC media access control
  • RLC Ratio Link Control
  • PDCP Packet Data Convergence Protocol
  • the second sending protocol entities are, in order from bottom to top, PHY layer protocol entities, MAC layer protocol entities, RLC layer protocol entities, and PDCP layer protocol entities.
  • the terminal may specifically receive the first downlink data sent by the first access device and the second access network device, and the first downlink data may be The first access network device copies the first downlink data to the first sending protocol entity of the first access network device through the first sending protocol entity of the first access network device
  • the lower layer sending protocol entity and the second access network device or may be the second access network device copying the first downlink data through the second sending protocol entity of the second access network device
  • the lower layer transmission protocol entity and the first access network device that are sent to the second transmission protocol entity of the second access network device later are not particularly limited in this embodiment.
  • the first access network device may specifically copy the first downlink data to the MAC layer protocol entity and the first access network device of the first access network device through the RLC layer protocol entity of the first access network device. Two access network devices, the first access device and the second access network device sending the first downlink data to the terminal.
  • the second access network device may specifically copy the first downlink data to the MAC layer protocol entity and the second access network device after copying the first downlink data through the RLC layer protocol entity of the second access network device In the first access network device, the first access device and the second access network device send the first downlink data to the terminal.
  • the terminal may specifically receive first downlink data sent by the first access network device and receive second downlink data sent by the second access network device.
  • the downlink data that is, the first downlink data and the second downlink data, may be at least one of data that the terminal does not receive correctly and data that the terminal is to receive.
  • the comparison is not particularly limited.
  • the first uplink data and / or the second uplink data and / or the first downlink data and / or the second downlink data may be specifically transmitted through a designated bearer.
  • the designated bearer may include but not limited to a Master Cell Group (MCG) bearer, a Secondary Cell Group (SCG) bearer, an MCG split bearer and
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the at least one path in the SCG split bearer is not specifically limited in this embodiment.
  • the trigger condition of the handover may include but is not limited to a time trigger condition and / or an event trigger condition, which is not particularly limited in this embodiment.
  • the time trigger condition may include but is not limited to a timer, which is not particularly limited in this embodiment.
  • the first access network device may start a timer, and after the timer expires, it may start transmission of uplink data or downlink data.
  • the event trigger condition may include but is not limited to indication information, which is not particularly limited in this embodiment.
  • the indication information may include but is not limited to signaling indication information and / or user plane indication information, which is not particularly limited in this embodiment.
  • the sending end of the signaling instruction information may include at least one of a terminal, a first access network device, a second access network device, and a core network device, which is not particularly limited in this embodiment;
  • the receiving end of the instruction information may include at least one of a terminal, a first access network device, a second access network device, and a core network device, which is not particularly limited in this embodiment.
  • the core network equipment involved may be mobility management equipment, specifically the access and mobility management functions (Access and Mobility Management Function) in the 5G core network, the Next Generation Core (NGCN) (AMF), or it can also be a 4G core network (evolved packet core (Evolved Packet Core, EPC) mobility management entity (MobilityManagementEntity, MME), etc., this embodiment is not particularly limited.
  • NGCN Next Generation Core
  • MME Mobility ManagementEntity
  • the signaling instruction information may be radio resource control (Radio Resource Control, RRC) signaling, such as HO command, RRC reconfiguration, or other new signaling, or may be X2 -AP signaling, such as handover request response (handover request), sequence number (SN) status transfer (STATUS transfer), or other new signaling, or S1-AP signaling, in this embodiment This is not particularly limited.
  • RRC Radio Resource Control
  • X2 -AP signaling such as handover request response (handover request), sequence number (SN) status transfer (STATUS transfer), or other new signaling, or S1-AP signaling
  • the user plane indication information may be indication information carried in the header of the data packet, such as an RRC header, a PDCP header, an RLC header, or a MAC header.
  • the indication information may further be used to indicate the first uplink data and / or the second uplink data and / or the first downlink data and / or the first The transmission path of the second downlink data, which implementation process in the previous implementation mode is adopted.
  • one of the transmission modes is to simultaneously connect two access network devices, namely the first access network device and
  • the second access network device transmits uplink data or downlink data between the terminal, the first access network device, and the second access network device, thereby realizing data transmission in the simultaneous connection switching mode.
  • FIG. 2 is a schematic structural diagram of a data transmission device according to another embodiment of the present invention, as shown in FIG. 2.
  • the data transmission device of this embodiment may include a switching unit 21, which may be used to switch the transmission data of the terminal from the first transmission mode to the second transmission mode during the switching process.
  • the first transmission mode may be a transmission mode used for data transmission when the terminal is connected to the first access network device
  • the second transmission mode may be the terminal and the first access network at the same time
  • the transmission mode used for data transmission may be a transmission mode used for data transmission when the terminal is connected to the first access network device
  • the second access network device may be one access network device, or may also be multiple access network devices, which is not particularly limited in this embodiment.
  • the access signal with the strongest signal among the multiple second access network devices may be selected for data transmission, or it may be directly selected All the access network devices in the plurality of second access network devices perform data transmission.
  • the access network equipment involved in the present invention may be an evolved base station (Evolved) in the Evolved Universal Mobile Communication System Terrestrial Radio Access Network (Evolved Universal Mobile Telecommunication System Territorial Access Network, E-UTRAN) NodeB, eNB), or may also be a 5G base station in the next generation radio access network (Next-Generation-Radio Access Network, NG-RAN), that is, gNB, etc., which is not particularly limited in this embodiment.
  • Evolved Evolved Universal Mobile Communication System Terrestrial Radio Access Network
  • eNB Evolved Universal Mobile Telecommunication System Territorial Access Network
  • NG-RAN next generation radio access network
  • the first access network device may be a source access network device
  • the second access network device may be a target access network device
  • the core idea of the present invention is that in the simultaneous connection (Simultaneous Connectivity) switching mode, the terminal can simultaneously maintain the protocol stacks with the source access network device and the target access network device, respectively, by switching the terminal during the switching process.
  • the transmission data is switched from the first transmission mode to the second transmission mode.
  • One of the transmission modes is to simultaneously connect two access network devices, namely the first access network device and the second access network device. Uplink data or downlink data is transmitted between the network access device and the second access network device, thereby achieving data transmission in the simultaneous connection switching mode.
  • the data transmission entity of the first transmission mode may include but is not limited to at least one of the following entities: the terminal, the protocol entity in the terminal , The first access network device, the protocol entity in the first access network device, the second access network device and the protocol entity in the second access network device; accordingly, the data transmission entity of the second transmission mode It may include but is not limited to at least one of the following entities: the terminal, the protocol entity in the terminal, the first access network device, the protocol entity in the first access network device, the second access network device and The protocol entity in the second access network device is not particularly limited in this embodiment.
  • the data receiving entity of the first transmission mode may include but is not limited to at least one of the following entities: the terminal, a protocol entity in the terminal , The first access network device, the protocol entity in the first access network device, the second access network device and the protocol entity in the second access network device; accordingly, the data receiving entity of the second transmission mode May include but not limited to at least one of the following entities: terminal, protocol entity in terminal, first access network device, protocol entity in first access network device, second access network device and second access
  • the protocol entity in the network device is not particularly limited in this embodiment.
  • the data transmission device can perform uplink data transmission.
  • the switching unit 21 may be further used for
  • the first receiving protocol entity of the first access network device sends the first uplink data to an upper-layer receiving protocol entity of the first receiving protocol entity of the first access network device and the second access network, respectively Equipment; and / or
  • the second receiving protocol entity of the second access network device sends the first uplink data to an upper layer receiving protocol entity of the second receiving protocol entity of the second access network device and the first access network, respectively Equipment; and / or
  • the switching unit 21 may be further used
  • the first receiving protocol entity of the first access network device After receiving the first uplink data sent by the terminal, the first receiving protocol entity of the first access network device successfully copies the first uplink data after receiving the first uplink data, and the first access network The first receiving protocol entity of the device sends the first uplink data to the upper layer receiving protocol entity of the first receiving protocol entity of the first access network device and the second access network device respectively; and / or
  • the second access network device respectively receive the first uplink data sent by the terminal, or receive the first uplink data sent by the terminal, and the second uplink data sent by the terminal is sent by the second access network The device receives.
  • the switching unit 21 may be further used
  • the second receiving protocol entity of the second access network device After receiving the first uplink data sent by the terminal, the second receiving protocol entity of the second access network device successfully receives the first uplink data and then copies the first uplink data, and the second access network The second receiving protocol entity of the device sends the first uplink data to the upper layer receiving protocol entity of the second receiving protocol entity of the second access network device and the first access network device, respectively; and / or
  • the first access network device respectively receive first uplink data sent by the terminal or receive second uplink data sent by the terminal, and the first uplink data sent by the terminal is sent by the first access network The device receives.
  • the uplink data that is, the first uplink data and the second uplink data
  • the uplink data may be at least one of data that is not correctly sent by the terminal and data to be sent by the terminal. This embodiment compares There is no particular limitation.
  • the first receiving protocol entity of the first access network device may include, but is not limited to, a physical (PHY) layer protocol entity, a media access control (Media Access Control, MAC) layer protocol entity, and a wireless link control ( Ratio Link Control (RLC) layer protocol entity and Packet Data Convergence Protocol (PDCP) layer protocol entity, at least one of which is not specifically limited in this embodiment.
  • PHY physical
  • MAC media access control
  • RLC Ratio Link Control
  • PDCP Packet Data Convergence Protocol
  • the second receiving protocol entity of the second access network device may include, but is not limited to, a physical (PHY) layer protocol entity, a media access control (Media Access Control, MAC) layer protocol entity, and a wireless link control ( Ratio Link Control (RLC) layer protocol entity and Packet Data Convergence Protocol (PDCP) layer protocol entity, at least one of which is not specifically limited in this embodiment.
  • PHY physical
  • MAC media access control
  • RLC Ratio Link Control
  • PDCP Packet Data Convergence Protocol
  • the data transmission device can perform downlink data transmission.
  • the switching unit 21 may be further used for
  • the access network device sends to the second access network device through the X2 interface or the first sending protocol entity of the first access network device, or through the X2 interface or the first The second sending protocol entity of the second access network device sends to the first access network device; and / or
  • the first sending protocol entity of the network device copies the first downlink data to the lower layer sending protocol entity and the second access network device of the first sending protocol entity of the first access network device, or is The second access network device copies the first downlink data to the second transmission protocol entity of the second access network device through the second transmission protocol entity of the second access network device.
  • the lower layer sending protocol entity and the first access network device and / or
  • the switching unit 21 may be further used
  • the first sending protocol entity of the first access network device uses the first sending protocol entity of the first access network device to copy and send the first downlink data to the lower layer sending protocol entity and the second of the first sending protocol entity of the first access network device
  • An access network device, the first access device and the second access network device send the first downlink data to the terminal; and / or
  • the switching unit 21 may be further used
  • the first access device and the second access network device Using the second sending protocol entity of the second access network device to copy and send the first downlink data to the lower sending protocol entity of the second sending protocol entity of the second access network device and the A first access network device, the first access device and the second access network device send the first downlink data to the terminal; and / or
  • the first sending protocol entity of the first access network device may include, but is not limited to, a physical (PHY) layer protocol entity, a media access control (Media Access Control, MAC) layer protocol entity, and a wireless link control ( Ratio Link Control (RLC) layer protocol entity and Packet Data Convergence Protocol (PDCP) layer protocol entity, at least one of which is not specifically limited in this embodiment.
  • PHY physical
  • MAC media access control
  • RLC Ratio Link Control
  • PDCP Packet Data Convergence Protocol
  • the second transmission protocol entity of the second access network device may include, but is not limited to, a physical (PHY) layer protocol entity, a media access control (Media Access Control, MAC) layer protocol entity, and a wireless link control ( Ratio Link Control (RLC) layer protocol entity and Packet Data Convergence Protocol (PDCP) layer protocol entity, at least one of which is not specifically limited in this embodiment.
  • PHY physical
  • MAC media access control
  • RLC Ratio Link Control
  • PDCP Packet Data Convergence Protocol
  • the downlink data may be at least one of data that the terminal does not receive correctly and data that the terminal is to receive. In this embodiment The comparison is not performed.
  • the first uplink data and / or the second uplink data and / or the first downlink data and / or the second downlink data may be specified by Bearer transmission.
  • the designated bearer may include but not limited to a Master Cell Group (MCG) bearer, a Secondary Cell Group (SCG) bearer, an MCG split bearer and
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the at least one path in the SCG split bearer is not specifically limited in this embodiment.
  • the trigger condition of the handover may include but is not limited to a time trigger condition and / or an event trigger condition, which is not particularly limited in this embodiment.
  • the time trigger condition may include but is not limited to a timer, which is not particularly limited in this embodiment.
  • the event trigger condition may include but is not limited to indication information, which is not particularly limited in this embodiment.
  • the indication information may include but is not limited to signaling indication information and / or user plane indication information, which is not particularly limited in this embodiment.
  • the indication information may further be used to indicate the first uplink data and / or the second uplink data and / or the first downlink data and / or the first The transmission path of the second downlink data, which implementation process in the previous implementation mode is adopted.
  • the switching unit switches the transmission data of the terminal from the first transmission mode to the second transmission mode.
  • One of the transmission modes is to connect two access network devices simultaneously, namely the first access network.
  • the device and the second access network device perform uplink data or downlink data transmission between the terminal, the first access network device, and the second access network device, thereby realizing data transmission in the simultaneous connection switching mode.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • 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 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 may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present invention 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 above integrated unit can be implemented in the form of hardware, or in the form of hardware plus software functional units.

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un appareil de transmission de données. Dans un processus de commutation, un terminal est commuté d'un premier mode de transmission à un deuxième mode de transmission lors de la réalisation d'une transmission de données. Dans l'un des deux modes de transmission, le terminal est connecté simultanément à un premier dispositif de réseau d'accès et à un deuxième dispositif de réseau d'accès (101), de sorte que des données de liaison montante ou des données de liaison descendante puissent être transmises entre le terminal, le premier dispositif de réseau d'accès et le deuxième dispositif de réseau d'accès, ce qui prend en charge une connectivité simultanée pour une transmission de données dans un processus de commutation.
PCT/CN2018/115628 2018-11-15 2018-11-15 Procédé et appareil de transmission de données WO2020097850A1 (fr)

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CN201880092575.7A CN111989949B (zh) 2018-11-15 2018-11-15 数据的传输方法及装置

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022067793A1 (fr) * 2020-09-30 2022-04-07 华为技术有限公司 Procédé et appareil de communication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2983439A1 (fr) * 2014-08-06 2016-02-10 Alcatel Lucent Sélection de cellules spéciales au niveau des noeuds de réseau secondaire à support de double connectivité
CN107710667A (zh) * 2015-07-01 2018-02-16 Lg 电子株式会社 在双连接中发送数据的方法及其设备
CN108029066A (zh) * 2015-09-18 2018-05-11 三星电子株式会社 用于在无线通信系统中进行切换的方法和支持该方法的装置
CN108566309A (zh) * 2017-01-26 2018-09-21 华为技术有限公司 一种接入目标小区的方法以及设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113411851A (zh) * 2013-06-18 2021-09-17 索尼公司 通信装置
US20150089382A1 (en) * 2013-09-26 2015-03-26 Wu-chi Feng Application context migration framework and protocol
KR101751154B1 (ko) * 2014-01-17 2017-06-26 삼성전자주식회사 무선 통신 네트워크에서 사용자 단말기의 듀얼 연결 모드 동작
CN105939381B (zh) * 2016-06-14 2019-10-29 Tcl移动通信科技（宁波）有限公司 一种控制终端自动切换下载文件方式的方法及系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2983439A1 (fr) * 2014-08-06 2016-02-10 Alcatel Lucent Sélection de cellules spéciales au niveau des noeuds de réseau secondaire à support de double connectivité
CN107710667A (zh) * 2015-07-01 2018-02-16 Lg 电子株式会社 在双连接中发送数据的方法及其设备
CN108029066A (zh) * 2015-09-18 2018-05-11 三星电子株式会社 用于在无线通信系统中进行切换的方法和支持该方法的装置
CN108566309A (zh) * 2017-01-26 2018-09-21 华为技术有限公司 一种接入目标小区的方法以及设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022067793A1 (fr) * 2020-09-30 2022-04-07 华为技术有限公司 Procédé et appareil de communication

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