WO2019062621A1 - 一种进行重复传输的方法和设备 - Google Patents

一种进行重复传输的方法和设备 Download PDF

Info

Publication number
WO2019062621A1
WO2019062621A1 PCT/CN2018/106508 CN2018106508W WO2019062621A1 WO 2019062621 A1 WO2019062621 A1 WO 2019062621A1 CN 2018106508 W CN2018106508 W CN 2018106508W WO 2019062621 A1 WO2019062621 A1 WO 2019062621A1
Authority
WO
WIPO (PCT)
Prior art keywords
pdcp
radio bearer
repeated transmission
data packet
transmitted
Prior art date
Application number
PCT/CN2018/106508
Other languages
English (en)
French (fr)
Inventor
刘爱娟
许芳丽
刘佳敏
Original Assignee
电信科学技术研究院有限公司
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 电信科学技术研究院有限公司 filed Critical 电信科学技术研究院有限公司
Priority to US16/650,383 priority Critical patent/US11115315B2/en
Priority to KR1020207011638A priority patent/KR102341580B1/ko
Priority to JP2020517898A priority patent/JP7210563B2/ja
Priority to EP18860560.4A priority patent/EP3691163A4/en
Publication of WO2019062621A1 publication Critical patent/WO2019062621A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • 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
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/189—Transmission or retransmission of more than one copy of a message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • 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

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method and device for performing repeated transmission.
  • an E-UTRAN (Evolved-Universal Terrestrial Radio Access Network) is composed of a plurality of eNodeBs (evolved base stations), an eNodeB and an EPC (Evolved Packet).
  • the Core, the evolved packet cores are connected through the S1 interface, and the eNodeBs are connected through the X2 interface.
  • a CU central unit
  • RRC Radio Resource Control
  • partial layer 2 or/and layer 1 functions in the CU, base station.
  • Other functions are deployed on the DU (distributed unit).
  • the interface (NG) of the base station and the core network is suspended at the CU, and the interface (Xn) between the base stations is also suspended at the CU.
  • the manner of CU/DU separation on the RAN (Radio Access Network) side is divided into high layer separation and low layer separation.
  • the high-level separation scheme is RRC and PDCP (Packet Data Convergence Protocol) in the CU; RLC (Radio Link Control), MAC (Medium Access Control), physical layer And RF (Radio Frequency) is in DU.
  • NR New Radio
  • the data transmission between the PDCP layer and the RLC layer is implemented internally.
  • the scenario of CU/DU separation there is no clear solution for how to implement PDCP duplication.
  • the present invention provides a method and an apparatus for performing repeated transmission, which solves the problem of the prior art that does not implement the duplication of PDCP in the scenario of CU/DU separation.
  • the CU determines that the packet data aggregation protocol PDCP repeated transmission needs to be performed on the radio bearer
  • the CU sends a PDCP data packet transmitted on the radio bearer to the DU, and instructs the DU to perform PDCP repeated transmission.
  • the DU receives the PDCP data packet that the CU needs to transmit on the radio bearer, and the information used to indicate the PDCP repeated transmission;
  • the DU sends the PDCP data packet to multiple radio link layer control RLC entities corresponding to the radio bearer for PDCP repeated transmission.
  • An apparatus for performing repeated transmission includes: a processor, a memory, and a transceiver; the memory stores data used by the processor when performing operations, and the transceiver is configured to receive under the control of the processor. And sending data;
  • the processor is configured to read a program in the memory and execute:
  • Determining that PDCP repeated transmission needs to be performed on the radio bearer Determining that PDCP repeated transmission needs to be performed on the radio bearer; transmitting PDCP data packets transmitted on the radio bearer to the DU, and instructing the DU to perform PDCP repeated transmission.
  • Another apparatus for performing repeated transmission includes: a processor, a memory, and a transceiver; the memory stores data used by the processor in performing operations, and the transceiver is used under the control of the processor Receive and send data;
  • the processor is configured to read a program in the memory and execute:
  • An apparatus for performing repeated transmission according to an embodiment of the present invention where the apparatus includes:
  • a determining module configured to determine that a PDCP repeated transmission needs to be performed on the radio bearer
  • a notification module configured to send, to the DU, a PDCP data packet transmitted on the radio bearer, and instruct the DU to perform PDCP repeated transmission.
  • An apparatus for performing repeated transmission according to an embodiment of the present invention where the apparatus includes:
  • a receiving module configured to receive a PDCP data packet that is sent by the CU and needs to be transmitted on the radio bearer, and information used to indicate that the PDCP is repeatedly transmitted;
  • a processing module configured to send the PDCP data packet to multiple RLC entities corresponding to the radio bearer for PDCP repeated transmission.
  • the embodiment of the present invention provides a computer storable medium on which a computer program is stored, and when the program is executed by the processor, the steps of the CU or the step of the DU are implemented.
  • the CU determines that the PDCP data packet needs to be transmitted on the radio bearer, and then sends the PDCP data packet transmitted on the radio bearer to the DU, and instructs the DU to perform PDCP repeated transmission; the DU sends the PDCP data packet.
  • FIG. 1 is a schematic structural diagram of a system for performing repeated transmission according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a first CU according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a first type of DU according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a second CU according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a second type of DU according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of a method on a CU side when performing repeated transmission according to an embodiment of the present invention
  • FIG. 7 is a schematic flowchart of a method on a DU side when performing repeated transmission according to an embodiment of the present invention.
  • a system for performing repeated transmission includes:
  • the CU 10 is configured to determine that a PDCP repeated transmission needs to be performed on the radio bearer, and send a PDCP data packet transmitted on the radio bearer to the DU, and instruct the DU to perform PDCP repeated transmission.
  • the DU20 is configured to receive, by the CU, a PDCP data packet that needs to be transmitted on the radio bearer, and information that is used to indicate that the PDCP is repeatedly transmitted, and send the PDCP data packet to multiple RLC entities corresponding to the radio bearer to perform PDCP. Repeat the transfer.
  • the CU determines that the PDCP data packet needs to be transmitted on the radio bearer, and then sends the PDCP data packet transmitted on the radio bearer to the DU, and instructs the DU to perform PDCP repeated transmission; the DU sends the PDCP data packet.
  • the PDCP data packet may be a PDCP PDU (Protocol Data Unit).
  • PDCP PDU Protocol Data Unit
  • the PDCP repeated transmission in the embodiment of the present invention sends the same PDCP data packet to multiple RLC entities, that is, the PDCP data packets received by each RLC entity are the same, and each RLC entity sends the received PDCP data.
  • the execution subject may be a DU, a CU, or other entity that can perform similar functions.
  • the radio bearer in the embodiment of the present invention includes a DRB (Data Radio Bearer) and a SRB (Signaling Radio Bearers). The following description will be respectively made.
  • Method 1 The radio bearer is SRB.
  • the CU sends the PDCP data packet transmitted on the SRB to the DU through the F1 control, and instructs the DU to perform PDCP repeated transmission by using an IE (Information Element) in the corresponding F1 interface message.
  • IE Information Element
  • the DU receives the PDCP data packet that is sent by the CU and needs to be transmitted on the radio bearer through the F1 control plane, and determines information for indicating PDCP repeated transmission in the IE of the corresponding F1 interface message.
  • the DU after receiving the PDCP data packet that is sent by the CU and needs to be transmitted on the radio bearer, the DU searches for the PD1 repeated transmission from the IE of the F1 interface message corresponding to the F1 control plane.
  • the information if any, determines that the received PDCP data packet needs to be PDCP repeated transmission; otherwise, it is determined that the received PDCP data packet is not subjected to PDCP repeated transmission.
  • the information used to indicate the PDCP repeated transmission may be represented by 1 bit, for example, 1 indicates that PDCP repeated transmission is required, and 0 indicates that PDCP repeated transmission is not required.
  • the F1 interface message corresponding to the F1 control plane may be any message capable of transmitting information indicating that the PDCP is repeatedly transmitted, such as a DL RRC MESSAGE TRANSFER (downlink radio resource control information transmission) message.
  • DL RRC MESSAGE TRANSFER downlink radio resource control information transmission
  • the radio bearer is a DRB.
  • the CU sends the PDCP data packet transmitted on the SRB to the DU through the F1 user, and instructs the DU to perform PDCP repeated transmission in the corresponding user plane data packet header;
  • the DU receives the PDCP data packet that is sent by the CU and needs to be transmitted on the radio bearer through the F1 user plane, and determines information for indicating PDCP repeated transmission in the corresponding user plane data packet header.
  • the DU after receiving the PDCP data packet that is sent by the CU and needs to be transmitted on the radio bearer, the DU searches for the PDCP user plane corresponding to the user plane data packet header of the F1 user plane to check whether there is a PDCP repeated transmission. The information, if any, determines that the received PDCP data packet needs to be PDCP repeated transmission; otherwise, it is determined that the received PDCP data packet is not subjected to PDCP repeated transmission.
  • the information used to indicate the PDCP repeated transmission may be represented by 1 bit, for example, 1 indicates that PDCP repeated transmission is required, and 0 indicates that PDCP repeated transmission is not required.
  • the CU needs to notify the DU to perform a transmission configuration before instructing the DU to perform PDCP repeated transmission.
  • the CU after determining that the radio bearer of the terminal supports PDCP repeated transmission, the CU notifies the radio bearer of the DU to support PDCP repeated transmission by using an F1 interface message;
  • the DU after receiving the notification that the radio bearer of the CU supports PDCP repeated transmission, the DU establishes, by using the F1 interface message, a plurality of RLC entities and logical channels used for PDCP repeated transmission for the radio bearer.
  • the terminal may determine whether the radio bearer of the terminal can support the CACP (Carrier Aggregation, CA: Carrier Aggregation, PDCP) transmission according to the capability of the UE and the status of the network.
  • CACP Carrier Aggregation, CA: Carrier Aggregation, PDCP
  • Method 1 The radio bearer is SRB.
  • the CU in the UE context establishment process or the UE context update, notifies the radio bearer of the DU to support PDCP repeated transmission by using an F1 interface message;
  • the DU after receiving the notification that the radio bearer supports PDCP repeated transmission by using the F1 interface message, the DU establishes multiple uses for the PDCP repeated transmission for the radio bearer.
  • RLC entity and logical channel
  • the F1 interface message may be any message that can notify the DU that the radio bearer supports PDCP repeated transmission, such as a DL RRC MESSAGE TRANSFER message.
  • the MAC layer is responsible for the mapping of logical channels to transport channels.
  • one DRB corresponds to one RLC entity and one logical channel
  • one DRB corresponds to multiple RLC entities and multiple logical channels.
  • the DU When the repeated transmission is required, the DU sends the PDCP data packet to each RLC entity corresponding to the radio bearer, and each RLC entity sends the PDCP data packet after it receives the PDCP data packet, thereby implementing the repeated transmission.
  • the radio bearer is a DRB.
  • the CU in the process of the UE context establishment process or the UE context update (Modify), notifies the radio bearer of the DU to support PDCP repeated transmission by using an F1 interface message;
  • the DU after receiving the notification that the radio bearer supports PDCP repeated transmission by using the F1 interface message, the DU establishes multiple uses for the PDCP repeated transmission for the radio bearer.
  • RLC entity and logical channel
  • the F1 interface message may be any message capable of transmitting information indicating that the PDCP is repeatedly transmitted, such as a DL RRC MESSAGE TRANSFER message.
  • the MAC layer is responsible for the mapping of logical channels to transport channels.
  • one DRB corresponds to one RLC entity and one logical channel
  • one DRB corresponds to multiple RLC entities and multiple logical channels.
  • the DU When a retransmission is required, the DU sends the PDCP data packet to each RLC entity corresponding to the radio bearer, and each RLC entity sends the PDCP data packet after it receives the PDCP data packet, thereby implementing repeated transmission.
  • the terminal of the embodiment of the present invention is also referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc., and is a voice and/or provided to the user.
  • Data connectivity devices such as handheld devices with wireless connectivity, in-vehicle devices, and the like.
  • terminals are: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality. (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart grid Wireless terminals, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and the like.
  • the first CU of the embodiment of the present invention includes: a processor 200, a memory 201, a transceiver 202, and a bus interface.
  • the processor 200 is responsible for managing the bus architecture and general processing, and the memory 201 can store data used by the processor 200 when performing operations.
  • the transceiver 202 is configured to receive and transmit data under the control of the processor 200.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 200 and various circuits of memory represented by memory 201.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the processor 200 is responsible for managing the bus architecture and general processing, and the memory 201 can store data used by the processor 200 when performing operations.
  • the flow disclosed in the embodiment of the present invention may be applied to the processor 200 or implemented by the processor 200.
  • each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 200 or an instruction in the form of software.
  • the processor 200 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can be implemented or executed in an embodiment of the invention.
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the 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 201, and the processor 200 reads the information in the memory 201 and completes the steps of the signal processing flow in conjunction with its hardware.
  • the processor 200 is configured to read a program in the memory 201 and execute:
  • Determining that PDCP repeated transmission needs to be performed on the radio bearer Determining that PDCP repeated transmission needs to be performed on the radio bearer; transmitting PDCP data packets transmitted on the radio bearer to the DU, and instructing the DU to perform PDCP repeated transmission.
  • the processor 200 is specifically configured to:
  • the radio bearer is an SRB
  • the PDCP data packet transmitted on the SRB is sent to the DU through the F1 control, and the DU is instructed by the IE in the corresponding F1 interface message to perform PDCP repeated transmission; or
  • the radio bearer is a DRB
  • the PDCP data packet transmitted on the SRB is sent by the F1 user to the DU, and the DU is instructed to perform PDCP repeated transmission in the corresponding user plane data packet header.
  • processor 200 is further configured to:
  • the radio bearer After determining that the radio bearer of the terminal supports PDCP repeated transmission, the radio bearer is notified by the F1 interface message that the radio bearer supports PDCP repeated transmission.
  • the processor 200 is specifically configured to:
  • the radio bearer is notified by the F1 interface message that the radio bearer supports PDCP repeated transmission.
  • the first DU of the embodiment of the present invention includes:
  • the processor 300 is responsible for managing the bus architecture and general processing, and the memory 301 can store data used by the processor 300 when performing operations.
  • the transceiver 302 is configured to receive and transmit data under the control of the processor 300.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 300 and various circuits of memory represented by memory 301.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the processor 300 is responsible for managing the bus architecture and general processing, and the memory 301 can store data used by the processor 300 when performing operations.
  • the flow disclosed in the embodiment of the present invention may be applied to the processor 300 or implemented by the processor 300.
  • each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 300 or an instruction in the form of software.
  • the processor 300 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can be implemented or executed in an embodiment of the invention.
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the 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 301, and the processor 300 reads the information in the memory 301 and completes the steps of the signal processing flow in conjunction with its hardware.
  • the processor 300 is configured to read a program in the memory 301 and execute:
  • the processor 300 is specifically configured to:
  • the radio bearer is an SRB, receiving, by using an F1 control plane, a PDCP data packet that is sent by the CU and required to be transmitted on a radio bearer, and determining, in an IE of the corresponding F1 interface message, information for indicating that the PDCP is repeatedly transmitted. ;or,
  • the radio bearer is a DRB
  • the processor 300 is further configured to:
  • the processor 300 is further configured to:
  • each logical channel is assigned a different TNL (Transport Network Layer Address) address.
  • the memory in FIGS. 2 and 3 above may also be used as an external storage device in addition to the CU and the DU.
  • the second CU of the embodiment of the present invention includes:
  • a determining module 400 configured to determine that a PDCP repeated transmission needs to be performed on the radio bearer
  • the notification module 401 is configured to send a PDCP data packet transmitted on the radio bearer to the DU, and instruct the DU to perform PDCP repeated transmission.
  • the notification module 401 is specifically configured to:
  • the radio bearer is an SRB
  • the PDCP data packet transmitted on the SRB is sent to the DU through the F1 control, and the DU is instructed by the IE in the corresponding F1 interface message to perform PDCP repeated transmission; or
  • the radio bearer is a DRB
  • the PDCP data packet transmitted on the SRB is sent by the F1 user to the DU, and the DU is instructed to perform PDCP repeated transmission in the corresponding user plane data packet header.
  • the notification module 401 is further configured to:
  • the radio bearer After determining that the radio bearer of the terminal supports PDCP repeated transmission, the radio bearer is notified by the F1 interface message that the radio bearer supports PDCP repeated transmission.
  • the notification module 401 is specifically configured to:
  • the radio bearer is notified by the F1 interface message that the radio bearer supports PDCP repeated transmission.
  • the second DU of the embodiment of the present invention includes:
  • the receiving module 500 is configured to receive a PDCP data packet that is sent by the CU and needs to be transmitted on the radio bearer, and information used to indicate that the PDCP is repeatedly transmitted.
  • the processing module 501 is configured to send the PDCP data packet to multiple RLC entities corresponding to the radio bearer for PDCP repeated transmission.
  • processing module 501 is specifically configured to:
  • the radio bearer is an SRB, receiving, by using an F1 control plane, a PDCP data packet that is sent by the CU and required to be transmitted on a radio bearer, and determining, in an IE of the corresponding F1 interface message, information for indicating that the PDCP is repeatedly transmitted. ;or,
  • the radio bearer is a DRB, receiving, by the F1 user plane, a PDCP data packet that is sent by the CU and required to be transmitted on the radio bearer, and determining information for performing PDCP repeated transmission in the corresponding user plane data packet header.
  • processing module 501 is further configured to:
  • processing module 501 is further configured to:
  • each logical channel is assigned a different TNL address.
  • the embodiment of the invention further provides a computer storable medium on which a computer program is stored, which is implemented by the processor to implement the steps of the CU or the steps of the DU.
  • the embodiment of the present invention further provides a method for performing repeated transmission.
  • the device corresponding to the method is a CU in a system for repeatedly transmitting channels in the embodiment of the present invention, and the method solves the problem and
  • the device is similar, so the implementation of the method can be referred to the implementation of the device, and the repeated description will not be repeated.
  • the method on the CU side of the embodiment of the present invention for performing repeated transmission includes:
  • Step 600 The CU determines that the PDCP repeated transmission needs to be performed on the radio bearer.
  • Step 601 The CU sends a PDCP data packet transmitted on the radio bearer to the DU, and instructs the DU to perform PDCP repeated transmission.
  • the CU sends a PDCP data packet that is transmitted on the radio bearer to the DU, and instructs the DU to perform PDCP repeated transmission, including:
  • the CU sends a PDCP data packet transmitted on the SRB to the DU through the F1 control, and instructs the DU to perform PDCP repeated transmission by using an IE in the corresponding F1 interface message;
  • the CU sends the PDCP data packet transmitted on the SRB to the DU through the F1 user, and instructs the DU to perform PDCP repeated transmission in the corresponding user plane data packet header.
  • the CU before the CU sends the PDCP data packet that is transmitted on the radio bearer to the DU, and indicates that the DU performs the PDCP repeated transmission, the CU further includes:
  • the CU After determining that the radio bearer of the terminal supports PDCP repeated transmission, the CU notifies the radio bearer of the DU to support PDCP repeated transmission by using an F1 interface message.
  • the CU by using an F1 interface message, to notify the DU that the radio bearer supports PDCP repeated transmission, including:
  • the CU notifies the radio bearer of the DU to support PDCP repeated transmission by using an F1 interface message.
  • the embodiment of the present invention further provides a method for performing repeated transmission.
  • the device corresponding to the method is a DU in a system for repeatedly transmitting channels in the embodiment of the present invention, and the method solves the problem and the principle is The device is similar, so the implementation of the method can be referred to the implementation of the device, and the repeated description will not be repeated.
  • the method of the DU side when performing the repeated transmission according to the embodiment of the present invention includes:
  • Step 700 The DU receives a PDCP data packet that is sent by the CU and needs to be transmitted on the radio bearer, and information used to indicate that the PDCP is repeatedly transmitted.
  • Step 701 The DU sends the PDCP data packet to multiple RLC entities corresponding to the radio bearer for PDCP repeated transmission.
  • the DU receives the PDCP data packet that is sent by the CU and needs to be transmitted on the radio bearer, and the information that indicates that the DU performs the PDCP repeated transmission, including:
  • the DU receives the PDCP data packet that is sent by the CU and needs to be transmitted on the radio bearer through the F1 control plane, and determines, in the IE of the corresponding F1 interface message, the indication for performing PDCP repetition.
  • Information transmitted or,
  • the DU receives, by using an F1 user plane, a PDCP data packet that is sent by the CU and needs to be transmitted on a radio bearer, and determines, in a corresponding user plane data packet header, an indication for performing PDCP repeated transmission. Information.
  • the PDCP data packet that is sent by the CU and needs to be transmitted on the radio bearer, and the information indicating that the DU performs the PDCP repeated transmission, the
  • the DU After receiving the notification that the radio bearer of the CU supports PDCP repeated transmission by using the F1 interface message, the DU establishes, for the radio bearer, a plurality of RLC entities and logical channels used for PDCP repeated transmission.
  • the method further includes:
  • the DU allocates a different TNL address for each logical channel.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the UE initially accesses the network, and the CU configures the SRB to support duplication for a certain UE through the UE context setup process.
  • Step 1 The UE sends MSG (message) 1 to the DU.
  • Step 2 After receiving the MSG1, the DU sends the MSG2 to the UE.
  • Step 3 After receiving the MSG2, the UE sends the MSG3 to the DU.
  • Step 4 After receiving the MSG3, the DU sends the PDCP PDU corresponding to the MSG3 through the L1, the MAC layer, and the RLC layer to the CU through the F1AP, and carries some or all of the configuration parameters of the MAC, RLC, and L1 of the SRB1.
  • Step 5 The CU generates the MSG4 and sends it to the UE through the DU.
  • Step 6 The UE sends a connection establishment to the network side.
  • Step 7 The UE and the network side establish a security mechanism.
  • Step 8 After confirming that the UE can support the CA-based PDCP duplication of the SRB, the CU notifies the DU through the UE context setup procedure.
  • Step 9 The DU establishes two RLC entities and logical channels for the corresponding SRB, and sends configuration information to the CU.
  • Step 10 After the CU assembles the RRC message, it is sent to the DU after passing through the PDCP layer of the CU.
  • Step 11 The DU is sent to the UE after being processed by the RLC, the MAC, and the L1.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the CU configures a DRB to support duplication for a UE through the UE context setup procedure.
  • Step 1 The CU receives the PDU session setup or DRB setup request from the core network.
  • Step 2 The CU provides DRB related information to the DU through the UE context setup and/or the modify process. In this process, the CU informs the DU that the DRB supports CA-based PDCP duplication.
  • Step 3 The DU needs to provide some or all of the configuration parameters in the RLC layer/MAC layer/PHY (physical) layer corresponding to the newly established DRB.
  • the DU sends the configuration parameter to the CU; the CU assembles the RRC message; sends the PD to the DU through the PDCP layer of the CU; the DU then processes the part or all of the RLC, the MAC, and the L1 and sends the message to the UE.
  • step 2 the DU knows that a certain DRB needs to support the PDCP duplication of the CA, the DU establishes two RLC entities and logical channels for the DRB, and provides different TNL addresses for different logical channels.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the network side has configured the CA-based PDCP duplication of the SRB.
  • the CU decides to duplication the SRB at some point.
  • Step 1 The network side is configured with the CA-based PDCP duplication of the UE supporting the SRB.
  • the CA-based PDCP duplication of the UE supporting the SRB For details, refer to the first embodiment.
  • Step 2 After the CU sends an RRC message, the CU sends an indication to the F1AP of the PDCP PDU corresponding to the RRC message to notify the DU to perform duplication on the data packet.
  • Step 3 The DU sends the received PDCP PDU to the two RLC entities corresponding to the SRB according to the indication, and performs duplicate transmission.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the network side has configured the CA-based PDCP duplication of the UE to support the DRB.
  • the CU decides to duplication the DRB at some point.
  • Step 1 The network side is configured with the CA-based PDCP duplication of the UE to support the DRB.
  • the CA-based PDCP duplication of the UE to support the DRB.
  • Step 2 After the CU determines to perform duplication on the DRB, the PDCP PDU is sent to the DU through the user plane, and an indication of duplication is carried in the packet header of the user plane.
  • Step 3 The DU sends the received PDCP PDU to the two RLC entities corresponding to the DRB according to the parsed user plane indication, and performs duplicate transmission.
  • the application can also be implemented in hardware and/or software (including firmware, resident software, microcode, etc.). Still further, the application can take the form of a computer program product on a computer usable or computer readable storage medium having computer usable or computer readable program code embodied in a medium for use by an instruction execution system or Used in conjunction with the instruction execution system.
  • a computer usable or computer readable medium can be any medium that can contain, store, communicate, communicate, or transport a program for use by an instruction execution system, apparatus or device, or in conjunction with an instruction execution system, Used by the device or device.

Abstract

一种进行重复传输的方法和设备，用以解决现有技术中存在的还没有在CU/DU分离的场景下实现PDCP的duplication的方案的问题。本发明实施例CU确定需要在无线承载上进行PDCP重复传输后，向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输；DU将所述PDCP数据包发送给所述无线承载对应的多个RLC实体进行PDCP重复传输。由于CU可以指示所述DU进行PDCP重复传输，从而在CU/DU分离的场景下实现PDCP数据包的duplication传输，进一步提高了系统性能。

Description

一种进行重复传输的方法和设备
本申请要求在2017年9月27日提交中国专利局、申请号为201710890310.9、发明名称为“一种进行重复传输的方法和设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信技术领域，特别涉及一种进行重复传输的方法和设备。
背景技术
在LTE(Long Term Evolution，长期演进)系统中，E-UTRAN(Evolution-Universal Terrestrial Radio Access Network，演进的全球地面无线接入网)由多个eNodeb(演进基站)组成，eNodeB与EPC(Evolved Packet Core，演进的分组核心)之间通过S1接口连接，eNodeB之间通过X2接口连接。
在5G系统中，考虑引入一个CU(central unit，中心节点)进行集中的控制和调度，RRC(Radio Resource Control，无线资源控制)的功能以及部分层2或/和层1功能在该CU，基站其他功能部署在DU(distribute unit，分布节点)上。基站和核心网的接口(NG)中止于CU，基站之间的接口(Xn)也中止于CU。
RAN(Radio Access Network，无线接入网)侧的CU/DU分离的方式分为高层分离和低层分离。其中，高层分离的方案是RRC和PDCP(Packet Data Convergence Protocol，分组数据聚合协议)在CU；RLC(Radio Link Control，无线链路控制)、MAC(Medium Access Control，媒体接入控制)、物理层以及RF(Radio Frequency，射频)在DU。
为了支持数据的可靠传输，NR(New Radio，新空口)中引入了基于CA的PDCP的duplication(重复)传输，一个PDCP数据包发给位于同一个节点 下的两个RLC实体。
对于PDCP和RLC位于同一节点的场景，PDCP层和RLC层之间的数据传递是内部实现，但是，对于CU/DU分离的场景，如何实现PDCP的duplication目前还没有明确的方案。
综上所述，目前还没有在CU/DU分离的场景下实现PDCP的duplication的方案。
发明内容
本发明提供一种进行重复传输的方法和设备，用以解决现有技术中存在的还没有在CU/DU分离的场景下实现PDCP的duplication的方案的问题。
本发明实施例提供的一种进行重复传输的方法，该方法包括：
CU确定需要在无线承载上进行分组数据聚合协议PDCP重复传输；
所述CU向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输。
本发明实施例提供的另一种进行重复传输的方法，该方法包括：
DU接收CU发送的需要在无线承载上传输的PDCP数据包，以及用于指示进行PDCP重复传输的信息；
所述DU将所述PDCP数据包发送给所述无线承载对应的多个无线链路层控制RLC实体进行PDCP重复传输。
本发明实施例提供的一种进行重复传输的设备，该设备包括：处理器、存储器和收发机；存储器存储处理器在执行操作时所使用的数据，收发机用于在处理器的控制下接收和发送数据；
其中，处理器，用于读取存储器中的程序并执行：
确定需要在无线承载上进行PDCP重复传输；向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输。
本发明实施例提供的另一种进行重复传输的设备，该设备包括：处理器、 存储器和收发机；存储器存储处理器在执行操作时所使用的数据，收发机用于在处理器的控制下接收和发送数据；
其中，处理器，用于读取存储器中的程序并执行：
接收CU发送的需要在无线承载上传输的PDCP数据包，以及用于指示进行PDCP重复传输的信息；将所述PDCP数据包发送给所述无线承载对应的多个RLC实体进行PDCP重复传输。
本发明实施例提供的一种进行重复传输的设备，该设备包括：
确定模块，用于确定需要在无线承载上进行PDCP重复传输；
通知模块，用于向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输。
本发明实施例提供的一种进行重复传输的设备，该设备包括：
接收模块，用于接收CU发送的需要在无线承载上传输的PDCP数据包，以及用于指示进行PDCP重复传输的信息；
处理模块，用于将所述PDCP数据包发送给所述无线承载对应的多个RLC实体进行PDCP重复传输。
本发明实施例提供的一种计算机可存储介质，其上存储有计算机程序，该程序被处理器执行时实现本发明实施例CU的步骤或DU的步骤。
本发明实施例CU确定需要在无线承载上进行PDCP重复传输后，向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输；DU将所述PDCP数据包发送给所述无线承载对应的多个RLC实体进行PDCP重复传输。由于CU可以指示所述DU进行PDCP重复传输，从而在CU/DU分离的场景下实现PDCP数据包的duplication传输，进一步提高了系统性能。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中 所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例中进行重复传输的系统结构示意图；
图2为本发明实施例中第一种CU的结构示意图；
图3为本发明实施例中第一种DU的结构示意图；
图4为本发明实施例中第二种CU的结构示意图；
图5为本发明实施例中第二种DU的结构示意图；
图6为本发明实施例中进行重复传输时CU侧的方法流程示意图；
图7为本发明实施例中进行重复传输时DU侧的方法流程示意图。
具体实施方式
首先对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
(1)本申请实施例中，名词“网络”和“系统”经常交替使用，但本领域的技术人员可以理解其含义。
(2)本申请实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
(3)“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
如图1所述，本发明实施例一种进行重复传输的系统包括：
CU10，用于确定需要在无线承载上进行PDCP重复传输；向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输。
DU20，用于接收CU发送的需要在无线承载上传输的PDCP数据包，以及用于指示进行PDCP重复传输的信息；将所述PDCP数据包发送给所述无线承载对应的多个RLC实体进行PDCP重复传输。
本发明实施例CU确定需要在无线承载上进行PDCP重复传输后，向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输；DU将所述PDCP数据包发送给所述无线承载对应的多个RLC实体进行PDCP重复传输。由于CU可以指示所述DU进行PDCP重复传输，从而在CU/DU分离的场景下实现PDCP数据包的duplication传输，进一步提高了系统性能。
其中，PDCP数据包可以是PDCP PDU(Protocol Data Unit，协议数据单元)。
本发明实施例的PDCP重复传输是将相同的PDCP数据包发送给多个RLC实体，也就是说每个RLC实体收到的PDCP数据包都是相同的，每个RLC实体发送收到的PDCP数据包，从而实现PDCP重复传输的效果。其中执行主体可以是DU、CU或其他可以实现类似功能的实体。
本发明实施例的无线承载包括DRB(Data Radio Bearer，数据无线承载)和SRB(Signaling Radio Bearers，信令无线承载)。下面分别进行说明。
方式一、无线承载为SRB。
可选的，所述CU通过F1控制面向DU发送在所述SRB上传输的PDCP数据包，并通过对应的F1接口消息中的IE(Information Element，信息元素)指示所述DU进行PDCP重复传输。
相应的，所述DU通过F1控制面接收所述CU发送的需要在无线承载上传输的PDCP数据包，并在对应的F1接口消息的IE中确定用于指示进行PDCP重复传输的信息。
在实施中，DU通过F1控制面接收所述CU发送的需要在无线承载上传输的PDCP数据包后，会从F1控制面对应的F1接口消息的IE中查找是否有用于指示进行PDCP重复传输的信息，如果有，则确定收到的PDCP数据包需要进行PDCP重复传输；否则，确定收到的PDCP数据包不要进行PDCP重复传输。
用于指示进行PDCP重复传输的信息可以用1比特表示，比如1表示需要进行PDCP重复传输，0表示不需要进行PDCP重复传输。
也可以不用0表示不需要进行PDCP重复传输，而是根据IE中是否有用于指示进行PDCP重复传输的信息进行判断，如果IE中没有用于指示进行PDCP重复传输的信息，则确定不需要进行PDCP重复传输。
其中，F1控制面对应的F1接口消息可以是任何能够传输用于指示进行PDCP重复传输的信息的消息，比如DL RRC MESSAGE TRANSFER(下行无线资源控制信息传送)消息等。
方式二、无线承载为DRB。
可选的，所述CU通过F1用户面向DU发送在所述SRB上传输的PDCP数据包，并在对应的用户面数据包头中指示所述DU进行PDCP重复传输；
相应的，所述DU通过F1用户面接收所述CU发送的需要在无线承载上传输的PDCP数据包，并在对应的用户面数据包头中确定用于指示进行PDCP重复传输的信息。
在实施中，DU通过F1用户面接收所述CU发送的需要在无线承载上传输的PDCP数据包后，会从F1用户面对应的用户面数据包头中查找是否有用于指示进行PDCP重复传输的信息，如果有，则确定收到的PDCP数据包需要进行PDCP重复传输；否则，确定收到的PDCP数据包不要进行PDCP重复传输。
用于指示进行PDCP重复传输的信息可以用1比特表示，比如1表示需要进行PDCP重复传输，0表示不需要进行PDCP重复传输。
也可以不用0表示不需要进行PDCP重复传输，而是根据用户面数据包 头中是否有用于指示进行PDCP重复传输的信息进行判断，如果用户面数据包头中没有用于指示进行PDCP重复传输的信息，则确定不需要进行PDCP重复传输。
可选的，所述CU指示所述DU进行PDCP重复传输之前还需要通知DU进行传输配置。
具体的，所述CU在确定终端的无线承载支持PDCP重复传输后，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输；
相应的，所述DU通过F1接口消息接收到所述CU的无线承载支持PDCP重复传输的通知后，为所述无线承载建立PDCP重复传输使用的多个RLC实体和逻辑信道。
在实施中，终端可以根据UE的能力、网络的状况等信息，判断终端的无线承载是否可以支持CAbased(载波聚合基础；CA：Carrier Aggregation，载波聚合)的PDCP重复传输
下面以无线承载使DRB和SRB分别进行说明。
方式一、无线承载为SRB。
具体的，所述CU在UE上下文建立过程或UE上下文更新中，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输；
相应的，所述DU在UE上下文建立过程或UE上下文更新过程中，在通过F1接口消息接收到所述无线承载支持PDCP重复传输的通知后，为所述无线承载建立PDCP重复传输使用的多个RLC实体和逻辑信道。
其中，F1接口消息可以是任何能够通知所述DU所述无线承载支持PDCP重复传输的消息，比如DL RRC MESSAGE TRANSFER消息等。
MAC层负责逻辑信道到传输信道的映射。
如果没有重复传输，一个DRB对应一个RLC实体和一个逻辑信道；
如果有duplication(重复传输)，一个DRB对应多个RLC实体和多个逻辑信道。
在需要进行重复传输时，DU将PDCP数据包分别发送给无线承载对应的 每个RLC实体，每个RLC实体收到PDCP数据包后都会发送，从而实现重复传输。
方式二、无线承载为DRB。
具体的，所述CU在UE上下文建立过程或UE上下文更新(Modify)过程中，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输；
相应的，所述DU在UE上下文建立过程或UE上下文更新过程中，在通过F1接口消息接收到所述无线承载支持PDCP重复传输的通知后，为所述无线承载建立PDCP重复传输使用的多个RLC实体和逻辑信道。
其中，F1接口消息可以是任何能够传输用于指示进行PDCP重复传输的信息的消息，比如DL RRC MESSAGE TRANSFER消息等。
MAC层负责逻辑信道到传输信道的映射。
如果没有重复传输，一个DRB对应一个RLC实体和一个逻辑信道；
如果有duplication，一个DRB对应多个RLC实体和多个逻辑信道。
在需要进行重复传输时，DU将PDCP数据包分别发送给无线承载对应的每个RLC实体，每个RLC实体收到PDCP数据包后都会发送，从而实现重复传输。
其中，本发明实施例的终端又称之为用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
如图2所述，本发明实施例第一种CU包括：处理器200、存储器201、收发机202以及总线接口。
处理器200负责管理总线架构和通常的处理，存储器201可以存储处理器200在执行操作时所使用的数据。收发机202用于在处理器200的控制下接收和发送数据。
总线架构可以包括任意数量的互联的总线和桥，具体由处理器200代表的一个或多个处理器和存储器201代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。处理器200负责管理总线架构和通常的处理，存储器201可以存储处理器200在执行操作时所使用的数据。
本发明实施例揭示的流程，可以应用于处理器200中，或者由处理器200实现。在实现过程中，信号处理流程的各步骤可以通过处理器200中的硬件的集成逻辑电路或者软件形式的指令完成。处理器200可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、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任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用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201，处理器200读取存储器201中的信息，结合其硬件完成信号处理流程的步骤。
具体地，处理器200，用于读取存储器201中的程序并执行：
确定需要在无线承载上进行PDCP重复传输；向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输。
可选的，所述处理器200具体用于：
若所述无线承载为SRB，则通过F1控制面向DU发送在所述SRB上传输的PDCP数据包，并通过对应的F1接口消息中的IE指示所述DU进行PDCP重复传输；或，
若所述无线承载为DRB，则通过F1用户面向DU发送在所述SRB上传输的PDCP数据包，并在对应的用户面数据包头中指示所述DU进行PDCP重复传输。
可选的，所述处理器200还用于：
在确定终端的无线承载支持PDCP重复传输后，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输。
可选的，所述处理器200具体用于：
在UE上下文建立过程或UE上下文更新过程中，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输。
如图3所述，本发明实施例第一种DU包括：
处理器300负责管理总线架构和通常的处理，存储器301可以存储处理器300在执行操作时所使用的数据。收发机302用于在处理器300的控制下接收和发送数据。
总线架构可以包括任意数量的互联的总线和桥，具体由处理器300代表的一个或多个处理器和存储器301代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。处理器300负责管理总线架构和通常的处理，存储器301可以存储处理器300在执行操作时所使用的数据。
本发明实施例揭示的流程，可以应用于处理器300中，或者由处理器300实现。在实现过程中，信号处理流程的各步骤可以通过处理器300中的硬件的集成逻辑电路或者软件形式的指令完成。处理器300可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、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任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用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301，处理器300读取存储器301中的信息，结合其硬件完成信号处理流程的步骤。
具体地，处理器300，用于读取存储器301中的程序并执行：
接收CU发送的需要在无线承载上传输的PDCP数据包，以及用于指示进行PDCP重复传输的信息；将所述PDCP数据包发送给所述无线承载对应的多个RLC实体进行PDCP重复传输。
可选的，所述处理器300具体用于：
若所述无线承载为SRB，则通过F1控制面接收所述CU发送的需要在无线承载上传输的PDCP数据包，并在对应的F1接口消息的IE中确定用于指示进行PDCP重复传输的信息；或，
若所述无线承载为DRB，则通过F1用户面接收所述CU发送的需要在无线承载上传输的PDCP数据包，并在对应的用户面数据包头中确定用于指示进行PDCP重复传输的信息。
可选的，所述处理器300还用于：
通过F1接口消息接收到所述CU的无线承载支持PDCP重复传输的通知后，为所述无线承载建立PDCP重复传输使用的多个RLC实体和逻辑信道。
可选的，所述处理器300还用于：
通过F1接口消息接收到所述CU的无线承载支持PDCP重复传输的通知后，若所述无线承载为DRB，则为每个逻辑信道分配不同的TNL(传输网络层地址)地址。
在实施中，上述图2和图3中的存储器也可以在CU和DU之外，作为外接存储设备。
如图4所述，本发明实施例第二种CU包括：
确定模块400，用于确定需要在无线承载上进行PDCP重复传输；
通知模块401，用于向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输。
可选的，所述通知模块401具体用于：
若所述无线承载为SRB，则通过F1控制面向DU发送在所述SRB上传输的PDCP数据包，并通过对应的F1接口消息中的IE指示所述DU进行PDCP重复传输；或，
若所述无线承载为DRB，则通过F1用户面向DU发送在所述SRB上传输的PDCP数据包，并在对应的用户面数据包头中指示所述DU进行PDCP重复传输。
可选的，所述通知模块401还用于：
在确定终端的无线承载支持PDCP重复传输后，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输。
可选的，所述通知模块401具体用于：
在UE上下文建立过程或UE上下文更新过程中，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输。
如图5所述，本发明实施例第二种DU包括：
接收模块500，用于接收CU发送的需要在无线承载上传输的PDCP数据包，以及用于指示进行PDCP重复传输的信息；
处理模块501，用于将所述PDCP数据包发送给所述无线承载对应的多个RLC实体进行PDCP重复传输。
可选的，所述处理模块501具体用于：
若所述无线承载为SRB，则通过F1控制面接收所述CU发送的需要在无线承载上传输的PDCP数据包，并在对应的F1接口消息的IE中确定用于指示进行PDCP重复传输的信息；或，
若所述无线承载为DRB，则通过F1用户面接收所述CU发送的需要在无 线承载上传输的PDCP数据包，并在对应的用户面数据包头中确定用于指示进行PDCP重复传输的信息。
可选的，所述处理模块501还用于：
通过F1接口消息接收到所述CU的无线承载支持PDCP重复传输的通知后，为所述无线承载建立PDCP重复传输使用的多个RLC实体和逻辑信道。
可选的，所述处理模块501还用于：
通过F1接口消息接收到所述CU的无线承载支持PDCP重复传输的通知后，若所述无线承载为DRB，则为每个逻辑信道分配不同的TNL地址。
本发明实施例还提供一种计算机可存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述CU的步骤或上述DU的步骤。
基于同一发明构思，本发明实施例中还提供了一种进行重复传输的方法，由于该方法对应的设备是本发明实施例信道进行重复传输的系统中的CU，并且该方法解决问题的原理与该设备相似，因此该方法的实施可以参见设备的实施，重复之处不再赘述。
如图6所述，本发明实施例进行重复传输时CU侧的方法包括：
步骤600、CU确定需要在无线承载上进行PDCP重复传输；
步骤601、所述CU向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输。
可选的，所述CU向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输，包括：
若所述无线承载为SRB，则所述CU通过F1控制面向DU发送在所述SRB上传输的PDCP数据包，并通过对应的F1接口消息中的IE指示所述DU进行PDCP重复传输；或，
若所述无线承载为DRB，则所述CU通过F1用户面向DU发送在所述SRB上传输的PDCP数据包，并在对应的用户面数据包头中指示所述DU进行PDCP重复传输。
可选的，所述CU向DU发送在所述无线承载上传输的PDCP数据包，并 指示所述DU进行PDCP重复传输之前，还包括：
所述CU在确定终端的无线承载支持PDCP重复传输后，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输。
可选的，所述CU通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输，包括：
所述CU在UE上下文建立过程或UE上下文更新过程中，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输。
基于同一发明构思，本发明实施例中还提供了一种进行重复传输的方法，由于该方法对应的设备是本发明实施例信道进行重复传输的系统中的DU，并且该方法解决问题的原理与该设备相似，因此该方法的实施可以参见设备的实施，重复之处不再赘述。
如图7所述，本发明实施例进行重复传输时DU侧的方法包括：
步骤700、DU接收CU发送的需要在无线承载上传输的PDCP数据包，以及用于指示进行PDCP重复传输的信息；
步骤701、所述DU将所述PDCP数据包发送给所述无线承载对应的多个RLC实体进行PDCP重复传输。
可选的，所述DU接收CU发送的需要在无线承载上传输的PDCP数据包，以及指示所述DU进行PDCP重复传输的信息，包括：
若所述无线承载为SRB，则所述DU通过F1控制面接收所述CU发送的需要在无线承载上传输的PDCP数据包，并在对应的F1接口消息的IE中确定用于指示进行PDCP重复传输的信息；或，
若所述无线承载为DRB，则所述DU通过F1用户面接收所述CU发送的需要在无线承载上传输的PDCP数据包，并在对应的用户面数据包头中确定用于指示进行PDCP重复传输的信息。
可选的，所述DU接收CU发送的需要在无线承载上传输的PDCP数据包，以及指示所述DU进行PDCP重复传输的信息之前，还包括：
所述DU通过F1接口消息接收到所述CU的无线承载支持PDCP重复传 输的通知后，为所述无线承载建立PDCP重复传输使用的多个RLC实体和逻辑信道。
可选的，所述DU通过F1接口消息接收到所述CU的无线承载支持PDCP重复传输的通知后，还包括：
若所述无线承载为DRB，则所述DU为每个逻辑信道分配不同的TNL地址。
下面列举几个实例，对本发明的方案进行进一步的说明。
实施例一：
本例中，UE初始接入网络，CU通过UE context setup(上下文建立)过程为某个UE配置SRB支持duplication(重复)。
步骤一：UE发送MSG(消息)1给DU。
步骤二：DU收到MSG1后发送MSG2给UE。
步骤三：UE收到MSG2后，向DU发送MSG3。
步骤四：DU收到MSG3后通过F1AP把经过L1、MAC层以及RLC层的该MSG3对应的PDCP PDU发给CU，同时携带SRB1的MAC、RLC和L1中的部分或全部配置参数。
步骤五：CU产生MSG4，并通过DU发给UE。
步骤六：UE发送连接建立完成给网络侧。
步骤七：UE和网络侧建立安全机制。
步骤八：CU在确认该UE可以支持SRB的CAbased的PDCP duplication后，通过UE context setup过程通知DU。
步骤九：DU为相应的SRB建立两个RLC实体以及逻辑信道，并把配置信息发给CU。
步骤十：CU组装RRC消息后经过CU的PDCP层以后发给DU。
步骤十一：DU经过RLC、MAC和L1的处理后发给UE。
实施例二：
本例中，CU通过UE context setup过程为某个UE配置某个DRB支持 duplication
步骤一：CU收到核心网的PDU session setup或者DRB setup的请求。
步骤二：CU通过UE context setup和/或modify过程为DU提供DRB相关的信息。在该过程中，CU通知DU该DRB支持基于CA的PDCP的duplication。
步骤三：DU需要提供新建立的DRB对应的RLC层/MAC层/PHY(物理)层中的部分或全部的配置参数。
具体的，DU把配置参数发给CU；CU组装RRC消息；经过CU的PDCP层发给DU；DU再经过RLC、MAC和L1中的部分或全部层的处理后发给UE。
如果在步骤2中，DU得知某个DRB需要支持CA的PDCP的duplication，DU为该DRB建立两个RLC实体以及逻辑信道，同时为不同的逻辑信道提供不同的TNL地址。
实施例三：
本例中，网络侧已经配置UE支持SRB的基于CA的PDCP的duplication。CU在某一时刻决定对SRB进行duplication。
步骤一：网络侧配置了UE支持SRB的基于CA的PDCP的duplication(配置过程具体可以参见上述实施例一)。
步骤二：CU在发送某个RRC消息的时候，决定对该SRB进行duplication后，CU在给DU的发送该RRC消息对应的PDCP PDU的F1AP中携带一个指示，通知DU对该数据包进行duplication。
步骤三：DU根据该指示把收到的PDCP PDU发给该SRB对应的两个RLC实体上，进行duplicated(重复的)发送。
实施例四：
本例中，网络侧已经配置UE支持DRB的基于CA的PDCP的duplication。CU在某一时刻决定对DRB进行duplication。
步骤一：网络侧配置了UE支持DRB的基于CA的PDCP的duplication (配置过程具体可以参见上述实施例二)。
步骤二：CU决定对该DRB进行duplication后，通过用户面将PDCP PDU发送给DU，并在用户面的包头携带一个进行duplication的指示。
步骤三：DU根据解析的用户面的指示把收到的PDCP PDU发给该DRB对应的两个RLC实体上，进行duplicated发送。
以上参照示出根据本申请实施例的方法、装置(系统)和/或计算机程序产品的框图和/或流程图描述本申请。应理解，可以通过计算机程序指令来实现框图和/或流程图示图的一个块以及框图和/或流程图示图的块的组合。可以将这些计算机程序指令提供给通用计算机、专用计算机的处理器和/或其它可编程数据处理装置，以产生机器，使得经由计算机处理器和/或其它可编程数据处理装置执行的指令创建用于实现框图和/或流程图块中所指定的功能/动作的方法。
相应地，还可以用硬件和/或软件(包括固件、驻留软件、微码等)来实施本申请。更进一步地，本申请可以采取计算机可使用或计算机可读存储介质上的计算机程序产品的形式，其具有在介质中实现的计算机可使用或计算机可读程序代码，以由指令执行系统来使用或结合指令执行系统而使用。在本申请上下文中，计算机可使用或计算机可读介质可以是任意介质，其可以包含、存储、通信、传输、或传送程序，以由指令执行系统、装置或设备使用，或结合指令执行系统、装置或设备使用。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (17)

  1. 一种进行重复传输的方法，其特征在于，该方法包括：
    中心节点CU确定需要在无线承载上进行分组数据聚合协议PDCP重复传输；
    所述CU向分布节点DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输。
  2. 如权利要求1所述的方法，其特征在于，所述CU向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输，包括：
    若所述无线承载为信令无线承载SRB，则所述CU通过F1控制面向DU发送在所述SRB上传输的PDCP数据包，并通过对应的F1接口消息中的IE指示所述DU进行PDCP重复传输；或，
    若所述无线承载为数据无线承载DRB，则所述CU通过F1用户面向DU发送在所述SRB上传输的PDCP数据包，并在对应的用户面数据包头中指示所述DU进行PDCP重复传输。
  3. 如权利要求1所述的方法，其特征在于，所述CU向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输之前，还包括：
    所述CU在确定终端的无线承载支持PDCP重复传输后，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输。
  4. 如权利要求3所述的方法，其特征在于，所述CU通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输，包括：
    所述CU在终端UE上下文建立过程或UE上下文更新UE上下文更新过程中，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输。
  5. 一种进行重复传输的方法，其特征在于，该方法包括：
    DU接收CU发送的需要在无线承载上传输的PDCP数据包，以及用于指 示进行PDCP重复传输的信息；
    所述DU将所述PDCP数据包发送给所述无线承载对应的多个无线链路层控制RLC实体进行PDCP重复传输。
  6. 如权利要求5所述的方法，其特征在于，所述DU接收CU发送的需要在无线承载上传输的PDCP数据包，以及指示所述DU进行PDCP重复传输的信息，包括：
    若所述无线承载为SRB，则所述DU通过F1控制面接收所述CU发送的需要在无线承载上传输的PDCP数据包，并在对应的F1接口消息的IE中确定用于指示进行PDCP重复传输的信息；或，
    若所述无线承载为DRB，则所述DU通过F1用户面接收所述CU发送的需要在无线承载上传输的PDCP数据包，并在对应的用户面数据包头中确定用于指示进行PDCP重复传输的信息。
  7. 如权利要求5所述的方法，其特征在于，所述DU接收CU发送的需要在无线承载上传输的PDCP数据包，以及指示所述DU进行PDCP重复传输的信息之前，还包括：
    所述DU通过F1接口消息接收到所述CU的无线承载支持PDCP重复传输的通知后，为所述无线承载建立PDCP重复传输使用的多个RLC实体和逻辑信道。
  8. 如权利要求7所述的方法，其特征在于，所述DU通过F1接口消息接收到所述CU的无线承载支持PDCP重复传输的通知后，还包括：
    若所述无线承载为DRB，则所述DU为每个逻辑信道分配不同的传输网络层地址TNL地址。
  9. 一种进行重复传输的设备，其特征在于，该设备包括：处理器、存储器和收发机；存储器存储处理器在执行操作时所使用的数据，收发机用于在处理器的控制下接收和发送数据；
    其中，处理器，用于读取存储器中的程序并执行：
    确定需要在无线承载上进行PDCP重复传输；向DU发送在所述无线承 载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输。
  10. 如权利要求9所述的设备，其特征在于，所述处理器具体用于：
    若所述无线承载为SRB，则通过F1控制面向DU发送在所述SRB上传输的PDCP数据包，并通过对应的F1接口消息中的IE指示所述DU进行PDCP重复传输；或，
    若所述无线承载为DRB，则通过F1用户面向DU发送在所述SRB上传输的PDCP数据包，并在对应的用户面数据包头中指示所述DU进行PDCP重复传输。
  11. 如权利要求9所述的设备，其特征在于，所述处理器还用于：
    在确定终端的无线承载支持PDCP重复传输后，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输；
    在UE上下文建立过程或UE上下文更新过程中，通过F1接口消息通知所述DU所述无线承载支持PDCP重复传输。
  12. 一种进行重复传输的设备，其特征在于，该设备包括：处理器、存储器和收发机；存储器存储处理器在执行操作时所使用的数据，收发机用于在处理器的控制下接收和发送数据；
    其中，处理器，用于读取存储器中的程序并执行：
    接收CU发送的需要在无线承载上传输的PDCP数据包，以及用于指示进行PDCP重复传输的信息；将所述PDCP数据包发送给所述无线承载对应的多个RLC实体进行PDCP重复传输。
  13. 如权利要求12所述的设备，其特征在于，所述处理器具体用于：
    若所述无线承载为SRB，则通过F1控制面接收所述CU发送的需要在无线承载上传输的PDCP数据包，并在对应的F1接口消息的IE中确定用于指示进行PDCP重复传输的信息；或，
    若所述无线承载为DRB，则通过F1用户面接收所述CU发送的需要在无线承载上传输的PDCP数据包，并在对应的用户面数据包头中确定用于指示进行PDCP重复传输的信息。
  14. 如权利要求12所述的设备，其特征在于，所述处理器还用于：
    通过F1接口消息接收到所述CU的无线承载支持PDCP重复传输的通知后，为所述无线承载建立PDCP重复传输使用的多个RLC实体和逻辑信道；
    通过F1接口消息接收到所述CU的无线承载支持PDCP重复传输的通知后，若所述无线承载为DRB，则为每个逻辑信道分配不同的TNL地址。
  15. 一种进行重复传输的设备，其特征在于，该设备包括：
    确定模块，用于确定需要在无线承载上进行PDCP重复传输；
    通知模块，用于向DU发送在所述无线承载上传输的PDCP数据包，并指示所述DU进行PDCP重复传输。
  16. 一种进行重复传输的设备，其特征在于，该设备包括：
    接收模块，用于接收CU发送的需要在无线承载上传输的PDCP数据包，以及用于指示进行PDCP重复传输的信息；
    处理模块，用于将所述PDCP数据包发送给所述无线承载对应的多个RLC实体进行PDCP重复传输。
  17. 一种计算机可存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现如权利要求1～4任一所述方法的步骤或权利要求5～8任一所述方法的步骤。
PCT/CN2018/106508 2017-09-27 2018-09-19 一种进行重复传输的方法和设备 WO2019062621A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US16/650,383 US11115315B2 (en) 2017-09-27 2018-09-19 Duplication transmission method and device
KR1020207011638A KR102341580B1 (ko) 2017-09-27 2018-09-19 복제 전송을 위한 방법 및 장치
JP2020517898A JP7210563B2 (ja) 2017-09-27 2018-09-19 複製送信の方法および装置
EP18860560.4A EP3691163A4 (en) 2017-09-27 2018-09-19 DUPLICATE TRANSMISSION PROCESS AND DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710890310.9 2017-09-27
CN201710890310.9A CN109560899B (zh) 2017-09-27 2017-09-27 一种进行重复传输的方法和设备

Publications (1)

Publication Number Publication Date
WO2019062621A1 true WO2019062621A1 (zh) 2019-04-04

Family

ID=65863993

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/106508 WO2019062621A1 (zh) 2017-09-27 2018-09-19 一种进行重复传输的方法和设备

Country Status (6)

Country Link
US (1) US11115315B2 (zh)
EP (1) EP3691163A4 (zh)
JP (1) JP7210563B2 (zh)
KR (1) KR102341580B1 (zh)
CN (1) CN109560899B (zh)
WO (1) WO2019062621A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021056589A1 (zh) * 2019-09-29 2021-04-01 华为技术有限公司 一种数据传输方法及装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240010085A (ko) 2017-05-05 2024-01-23 삼성전자주식회사 패킷 데이터 수렴 프로토콜 복제 기능을 지원하는 시스템, 데이터 송신 방법 및 네트워크 장비, 및 부가적 상향링크 반송파 구성 정보를 전송하는 방법 및 장치 그리고 연결 이동성 조정을 수행하는 방법 및 장치
CN111404633B (zh) * 2019-01-03 2021-10-26 华为技术有限公司 一种选择传输模式的方法及设备
CN110311751B (zh) * 2019-04-25 2021-11-30 维沃移动通信有限公司 一种数据的发送方法及终端
CN112469085B (zh) * 2020-11-18 2022-10-28 杭州红岭通信息科技有限公司 5g基站f1-u接口下行流量控制方法
WO2023141816A1 (en) * 2022-01-26 2023-08-03 Lenovo (Beijing) Limited Ecentral unit, distributed unit, user equipment and method for application data unit based data transmission

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120057560A1 (en) * 2009-05-11 2012-03-08 Sung Jun Park Method and apparatus for transmitting and receiving duplicate data in a multicarrier wireless communication system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8958422B2 (en) * 2012-03-17 2015-02-17 Blackberry Limited Handling packet data convergence protocol data units
EP3178194B1 (en) * 2014-08-08 2020-09-30 Samsung Electronics Co., Ltd. System and method of counter management and security key update for device-to-device group communication
WO2018053852A1 (zh) * 2016-09-26 2018-03-29 北京小米移动软件有限公司 无线承载的配置方法、装置及系统
US20200084682A1 (en) * 2017-05-05 2020-03-12 Samsung Electronics Co., Ltd System, data transmission method and network equipment supporting pdcp duplication function method and device for transferring supplementary uplink carrier configuration information and method and device for performing connection mobility adjustment
KR20240010085A (ko) * 2017-05-05 2024-01-23 삼성전자주식회사 패킷 데이터 수렴 프로토콜 복제 기능을 지원하는 시스템, 데이터 송신 방법 및 네트워크 장비, 및 부가적 상향링크 반송파 구성 정보를 전송하는 방법 및 장치 그리고 연결 이동성 조정을 수행하는 방법 및 장치
US20180376380A1 (en) * 2017-06-23 2018-12-27 Huawei Technologies Co., Ltd. Exposure of capabilities of central units and distributed units in base station entities for admission control
CN111034294A (zh) * 2017-08-08 2020-04-17 三菱电机株式会社 通信系统、通信终端装置及基站装置
CN109842955B (zh) * 2017-09-23 2023-11-21 华为技术有限公司 通信方法及装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120057560A1 (en) * 2009-05-11 2012-03-08 Sung Jun Park Method and apparatus for transmitting and receiving duplicate data in a multicarrier wireless communication system

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"Enhancements for PDCP Duplication in Xn-UP", 3GPP TSG RAN WG3 NR#2 ADHOC R3-172294, 29 June 2017 (2017-06-29), XP051302241 *
CATT: "Discussion on Support of PDCP Duplication", 3GPP TSG-RAN WG3#99BIS R3-181795, 20 April 2018 (2018-04-20), XP051429965 *
SAMSUNG ET AL.: "PDCP Duplication Support in High Layer Functional Split", 3GPP TSG-RAN WG3 MEETING AD HOC R3-172252, 29 June 2017 (2017-06-29), XP051302198 *
See also references of EP3691163A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021056589A1 (zh) * 2019-09-29 2021-04-01 华为技术有限公司 一种数据传输方法及装置
CN114342287A (zh) * 2019-09-29 2022-04-12 华为技术有限公司 一种数据传输方法及装置

Also Published As

Publication number Publication date
JP2020535756A (ja) 2020-12-03
EP3691163A4 (en) 2020-11-11
CN109560899A (zh) 2019-04-02
US11115315B2 (en) 2021-09-07
US20200228442A1 (en) 2020-07-16
JP7210563B2 (ja) 2023-01-23
EP3691163A1 (en) 2020-08-05
KR102341580B1 (ko) 2021-12-20
CN109560899B (zh) 2021-10-12
KR20200058478A (ko) 2020-05-27

Similar Documents

Publication Publication Date Title
WO2019062621A1 (zh) 一种进行重复传输的方法和设备
TWI725153B (zh) 用於中繼傳輸的方法和裝置以及中繼終端設備
WO2017049595A1 (zh) 边链路信息传输装置、方法以及通信系统
WO2015139609A1 (zh) 指示d2d相关信息和确定d2d发送资源的方法及装置
WO2019056383A9 (zh) 资源配置的方法、终端设备和网络设备
US10560929B2 (en) Resource request method and system, device, and network side node
US11202333B2 (en) Layer 2 processing method, central unit and distributed unit
US20230209328A1 (en) Method and device for establishing session
US9877307B2 (en) Method for implementing radio resource control protocol function, macro base station, and micro cell node
CN110649997B (zh) 数据处理方法及装置
JP2009232457A (ja) Ｒｒｃ接続プロセスを改善する方法及び通信装置
US20220338298A1 (en) Context management method and apparatus
JP2021518997A (ja) ５ｇ ｎｒシステムにおけるアップリンク送信のための方法
JP2024001237A (ja) 端末情報の通信処理方法及び関連するデバイス
TW201911824A (zh) 處理承載型態改變的裝置及方法
TWI670985B (zh) 處理雙連結的裝置及方法
WO2016015238A1 (zh) 切换过程中的d2d资源分配方法、装置以及通信系统
TWI661743B (zh) 執行一修改程序的裝置及方法
WO2018000363A1 (zh) 一种传输数据的方法、设备和网络系统
WO2016168967A1 (zh) 一种分量载波组的配置方法及设备
WO2015172525A1 (zh) 一种上行数据处理的方法及装置
US20220217549A1 (en) Communication Method, Apparatus, and System
US20150305079A1 (en) Information reporting method for device to device communication, user equipment and base station
CN111083699B (zh) 一种密钥生成方法、装置、第一网络实体及基站设备
WO2022141332A1 (zh) 一种通信方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18860560

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020517898

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20207011638

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2018860560

Country of ref document: EP

Effective date: 20200428