WO2023221838A1 - 交互方法和相关设备 - Google Patents

交互方法和相关设备 Download PDF

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Publication number
WO2023221838A1
WO2023221838A1 PCT/CN2023/093309 CN2023093309W WO2023221838A1 WO 2023221838 A1 WO2023221838 A1 WO 2023221838A1 CN 2023093309 W CN2023093309 W CN 2023093309W WO 2023221838 A1 WO2023221838 A1 WO 2023221838A1
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WIPO (PCT)
Prior art keywords
dus
parallel
send
information
sent
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PCT/CN2023/093309
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English (en)
French (fr)
Inventor
谷肖飞
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大唐移动通信设备有限公司
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Publication of WO2023221838A1 publication Critical patent/WO2023221838A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present disclosure relates to the field of data interaction technology, and in particular, to an interaction method and related equipment.
  • a base station includes a CU (Centralized Unit) and multiple DU (Distributed Unit).
  • CU Centralized Unit
  • DU Distributed Unit
  • the way in which multiple DUs interact with the CU is: after the interaction between one DU and the CU is completed, the interaction between the next DU and the CU is completed. Assume that the interaction time between DU and CU is T, and the interaction time between one DU and CU is 2T. If the number of DUs interacting with CU is N, the interaction time between multiple DUs and CU is 2NT.
  • the present disclosure provides an interaction method and related equipment to solve the problem of low efficiency in achieving the purpose of interaction scenarios between multiple DUs and CUs.
  • the present disclosure provides an interaction method applied to centralized unit entities, the method includes:
  • the second information corresponding to the first DU is sent to each of the first DUs in parallel.
  • the method before sending the second information corresponding to the first DU to each first DU in parallel, the method further includes:
  • Second information of the first DU is determined based on a plurality of first information to be sent to the first DU.
  • sending the second information corresponding to the first DU to each of the first DUs in parallel also includes:
  • the second information is an RRC reconfiguration message. After sending the second information corresponding to the first DU to each of the first DUs in parallel, the method further includes:
  • the plurality of first DUs are DUs currently accessed by the UE, and sending the second information corresponding to the first DU to each first DU in parallel further includes:
  • Radio resource control RRC reconfiguration messages are sent to each of the first DUs in parallel.
  • the method further includes:
  • the method further includes:
  • it also includes:
  • the first parameter is used for the first DU to send data to the centralized unit entity after the connection is re-established
  • the second parameter is used for the centralized unit entity to send data to the first unit entity after the connection is re-established.
  • DU sends data.
  • it also includes:
  • the third parameter is used for the first DU to send data to the centralized unit entity after the connection is re-established
  • the fourth parameter is used for the centralized unit entity to send data to the first DU after the connection is re-established.
  • DU sends data.
  • the interaction method includes:
  • the interaction method includes:
  • the present disclosure also provides a centralized unit entity, including a memory, a transceiver, and a processor:
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and perform the following operations:
  • the second information corresponding to the first DU is sent to each of the first DUs in parallel.
  • the present disclosure also provides a centralized unit entity, including:
  • a first receiving unit configured to receive first information sent in parallel by multiple first distribution unit entities DU accessed by the user equipment UE;
  • the first sending unit is configured to send the second information corresponding to the first DU to each of the first DUs in parallel.
  • this disclosure also provides a distributed unit entity, including a memory, a transceiver, and a processor:
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and perform the following operations:
  • the present disclosure also provides a distribution unit entity, including:
  • the second receiving unit is configured to receive an instruction message sent by the user equipment UE, where the instruction message is used to instruct multiple distribution unit entities accessed by the UE to send information in parallel to the centralized unit entity CU;
  • a second sending unit configured to send the first information to the CU according to the indication message
  • the second receiving unit is also configured to receive the second information sent by the CU.
  • the present disclosure also provides a user equipment, including a memory, a transceiver, and a processor:
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and perform the following operations:
  • the present disclosure also provides a user equipment, including:
  • the third sending unit is configured to send an instruction message to multiple distribution unit entities DU accessed by the user equipment, where the instruction message is used to instruct the multiple DUs to send information in parallel to the centralized unit entity CU.
  • the present disclosure also provides a processor-readable storage medium that stores a computer program, and the computer program is used to cause the processor to execute the method as described above.
  • the present disclosure provides an interaction method and related equipment. After receiving the first information sent by multiple DUs in parallel, the CU sends the second information to each DU. That is, the CU interacts with multiple DUs in parallel, saving multiple The time for DU and CU to interact shortens the total interaction time of multiple DU-CU interaction scenarios, thereby improving the efficiency of multiple DU-CU interaction scenarios to achieve their goals.
  • Figure 1 is a schematic diagram of an application scenario of corporal punishment according to an embodiment of the present disclosure
  • Figure 2 is a schematic diagram of interaction between DU and CU involved in the present disclosure
  • Figure 3 is another schematic diagram of interaction between DU and CU involved in the present disclosure
  • Figure 4 is a schematic flow diagram of an embodiment of the centralized unit entity of the present disclosure.
  • Figure 5 is a schematic flowchart of another embodiment of the centralized unit entity of the present disclosure.
  • Figure 6 is a schematic flowchart of another embodiment of the centralized unit entity of the present disclosure.
  • Figure 7 is a schematic flowchart of yet another embodiment of the centralized unit entity of the present disclosure.
  • Figure 8 is a schematic flowchart of yet another embodiment of the centralized unit entity of the present disclosure.
  • Figure 9 is a schematic flow diagram of an embodiment of the distribution unit entity of the present disclosure.
  • Figure 10 is a schematic flow diagram of an embodiment of user equipment according to the present disclosure.
  • Figure 11 is a schematic diagram of the hardware structure of the centralized unit entity of the present disclosure.
  • Figure 12 is a schematic diagram of the functional modules of the centralized unit entity of the present disclosure.
  • Figure 13 is a schematic diagram of the hardware structure of the distribution unit entity of the present disclosure.
  • Figure 14 is a schematic diagram of the functional modules of the distribution unit entity of the present disclosure.
  • Figure 15 is a schematic diagram of the hardware structure of the user equipment of the present disclosure.
  • Figure 16 is a schematic diagram of functional modules of user equipment according to the present disclosure.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar to it.
  • Embodiments of the present disclosure provide an interaction method and related equipment to solve the problem of low efficiency in achieving goals in interaction scenarios between multiple DUs and CUs.
  • the method and the device involved in the present disclosure are based on the concept of the same application. Since the method and the device solve the problem in similar principles, the implementation of the device and the method can be referred to each other, and repeated details will not be repeated.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • general packet Wireless service general packet radio service, GPRS
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • LTE-A Long term evolution advanced
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • NR 5G New Radio
  • EPS Evolved Packet System
  • 5GS 5G System
  • the terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc.
  • the names of terminal equipment may also be different.
  • the terminal equipment may be called user equipment (User Equipment, UE).
  • Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the Radio Access Network (RAN).
  • the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (also known as a "cell phone").
  • Wireless terminal equipment can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, and an access point.
  • remote terminal equipment remote terminal equipment
  • access terminal equipment access terminal
  • user equipment equipment user terminal
  • user agent user agent
  • user device user device
  • the network device involved in the embodiment of the present disclosure may be a base station, and the base station may include multiple cells that provide services for terminals.
  • a base station can also be called an access point, or it can be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or it can be named by another name.
  • the network device may be used to exchange received air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, where the remainder of the access network may include the Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • Network devices also coordinate attribute management of the air interface.
  • the network equipment involved in the embodiments of the present disclosure may be a network equipment (Base Transceiver Station, BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA). ), or bandwidth
  • BTS Base Transceiver Station
  • CDMA Code Division Multiple Access
  • NodeB in the code division multiple access
  • WCDMA can also be the evolutionary network equipment (evolutional Node B, eNB) in the long term evolution (long term evolution, LTE) system.
  • network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized units and distributed units may also be arranged geographically separately.
  • CU centralized unit
  • DU distributed unit
  • Network equipment and terminal equipment can each use one or more antennas for multi-input multi-output (MIMO) transmission.
  • MIMO transmission can be single-user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO. (Multiple User MIMO,MU-MIMO).
  • MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission or beamforming transmission, etc.
  • UE User Equipment, user equipment
  • DU Distributed Unit, distributed unit
  • gNB-DU the next generation NodeB Distributed Unit, the distributed unit of the 5G base station;
  • CU Centralized Unit, centralized unit
  • gNB-DU the next generation NodeB Centralized Unit, the centralized unit of the 5G base station;
  • RRC Radio Resource Control, wireless resource control
  • F1AP F1application protocol, F1 application protocol;
  • AMF Access and Mobility Management, access and mobility management functions
  • C-RNTI temporary identifier
  • gNB-DU ID The identification of the distribution unit of the 5G base station
  • RLC Radio Link Control, wireless link layer control protocol
  • UL GTP TEID Field of the uplink GPRS tunnel protocol
  • GTP GPRS Tunneling Protocol, GPRS Tunneling Protocol
  • GPRS General packet radio service, general wireless packet service
  • PDCP Packet Data Convergence Protocol, packet data convergence protocol
  • PDU Protocol Data Unit, protocol data unit.
  • PDC Primary Domain Controller, primary domain controller
  • PPDU Presentation Protocol Data Unit, protocol data unit
  • NR New Radio, new air interface.
  • Figure 1 is a schematic diagram of an application scenario provided by an embodiment of the present disclosure.
  • the interaction method provided by this embodiment involves a UE, multiple gNB-DUs, and gNB-CUs.
  • the multiple gNB-DUs are, for example, gNB-DU1, gNB-DU2, and gNB-DU3.
  • the UE accesses each gNB-DU, and the CU can send a message to each accessed gNB-DU.
  • the message is used to instruct each gNB-DU to send messages to the gNB-CU in parallel or serially. Sending messages in parallel means that multiple gNB-DUs send messages to the gNB-CU within the same time period.
  • Serial message sending means that after one gNB-DU among multiple gNB-DUs accessed by the UE completes information exchange with the gNB-CU, another gNB-DU accessed by the UE exchanges information with the gNB-CU again. . If multiple gNB-DUs send messages to gNB-CU in parallel, gNB-CU will also send messages to multiple gNB-DUs in parallel.
  • the interaction scenarios between multiple DUs and CUs involved in this disclosure include initial access of UE, inter-gNB-DU mobility, and intra-gNB-DU handover. The initial access of the UE refers to the scenario where the UE accesses multiple gNB-DUs.
  • Inter-gNB-DU mobility refers to the UE switching from accessing multiple gNB-DUs to accessing multiple other gNB-DUs.
  • Intra-gNB-DU handover refers to: the UE moves from one cell to another cell, and the UE switches from accessing the gNB-DU of the cell before the UE moves to accessing the gNB-DU after the UE moves; or, gNB-DU
  • Intra-handover refers to handover of the gNB-DU accessed by the UE in the cell to another gNB-DU in the cell.
  • the initial access of the UE and the movement between gNB-DUs involve many processes.
  • the processes of the two interaction scenarios are explained below.
  • the initial access process of the UE is as follows:
  • the UE sends an RRC establishment request to the DU (hereinafter referred to as DU for gNB-DU);
  • DU transmits initial uplink radio resource control information to CU (hereinafter referred to as CU for gNB-CU);
  • CU transmits downlink radio resource control information to DU;
  • RRC Setup radio resource control establishment
  • the UE sends the radio resource control establishment completion information to the DU;
  • DU transmits the uplink radio resource control message to the CU
  • CU transmits the initial UE message to AMF
  • AMF sends an initial context establishment request to the CU
  • the CU sends the UE’s context establishment request to the DU;
  • DU sends a security mode command to the UE
  • DU sends the UE’s context establishment response to the CU;
  • the UE completes sending the security mode to the DU;
  • DU transmits the uplink radio resource control message to CU
  • CU transmits the downlink radio resource control message to DU;
  • DU sends an RRC reconfiguration request to the UE
  • the UE sends the RRC reconfiguration completion information to the DU;
  • DU transmits the uplink radio resource control message to CU
  • the CU sends an initial context establishment response to the AMF.
  • the CU After the UE accesses the Source gNB-DU (hereinafter referred to as the source DU), the CU sends downlink user data to the UE and the source DU accessed by the UE, and the UE sends downlink user data to the source DU and the CU.
  • the source DU the Source gNB-DU
  • the UE sends a measurement report to the source DU;
  • the source DU transmits the uplink radio resource control message to the CU;
  • CU sends the UE’s context modification request to the source DU;
  • the source DU sends the UE's context modification response to the CU;
  • the CU sends the UE's context modification request to the Target gNB-DU (hereinafter referred to as the target DU) to which the UE is to access;
  • the target DU sends the UE’s context modification response to the CU;
  • the CU sends the UE's context modification request to the source DU.
  • the context modification request is RRC reconfiguration
  • the source DU sends an RRC reconfiguration request to the UE
  • the source DU sends the UE's context establishment response to the CU in the downlink data transmission state
  • the random access process between the UE and the target DU transmits messages to the CU in the downlink data transmission state;
  • the UE sends the RRC reconfiguration completion message to the target DU in the downlink data transmission state
  • the target DU transmits the RRC reconfiguration completion message to the CU;
  • the CU sends the UE’s context release command to the source DU;
  • the source DU sends the UE's context release completion message to the CU.
  • Figure 2 takes an example of interaction between a DU accessed by the UE and the UE and CU.
  • the process of interaction between other DUs accessed by the UE and the UE and CU is the same as the process shown in Figure 2.
  • Figure 3 takes a source DU accessed by the UE and a target DU to be accessed as an example to illustrate the interaction between the UE and other accessed source DUs, as well as the interaction involved in the UE switching to other target DUs, and Figure 3 The process shown in 3 is consistent.
  • the present disclosure provides an interaction method.
  • Figure 4 is a schematic flowchart of an interaction method provided by an embodiment of the present disclosure, applied to centralized unit entities, and the method includes:
  • Step S101 Receive first information sent in parallel by multiple first distribution unit entities DU accessed by the user equipment UE.
  • the centralized unit entity refers to the physical device of the CU
  • the distribution unit entity refers to the physical device of the DU.
  • the UE will select multiple DUs to access, and the DU accessed by the UE is defined as the first DU. After the UE accesses multiple DUs, the multiple DUs will interact with the CU. In the interaction scenario between multiple first DUs and the CU, multiple first DUs send information to the CU in parallel. This information is defined as the first information, that is, the CU receives the first message sent in parallel by multiple first DUs accessed by the UE. information.
  • the UE may decide to send information to the CU in parallel or serially from the multiple first DUs.
  • the UE sends indication information to multiple accessed first DUs. If the indication information instructs multiple first DUs to send information to the CU in parallel, then when the multiple first DUs need to interact with the CU, Multiple first DUs send the first information to the CU in parallel.
  • Step S102 Send second information corresponding to the first DU to each first DU in parallel.
  • the CU After receiving the first information sent in parallel by multiple first DUs, the CU will uniformly send the second information to each first DU.
  • the first information may be the initial uplink radio resource control information transmitted to the CU after each first DU receives the RRC establishment request
  • the second information may be the downlink radio resource control transmitted by the CU to each first DU. information.
  • the initial uplink radio resource control information includes the C-RNTI (temporary identifier) and gNB-DU ID allocated by the UE to each first DU. That is, each first DU uses the first information to assign its own C-RNTI and gNB-DU.
  • DU ID is sent to CU. After receiving the first information, the CU generates the second information.
  • the second information includes the gNB-CU UE F1AP ID assigned by the CU and the RRC message generated by the CU.
  • the gNB-CU UE F1AP ID refers to the identification of the F1 application protocol between the CU and the UE, and the RRC message is the radio resource control establishment information.
  • the plurality of first DUs send the RRC message in the second information to the UE.
  • steps 6, 9, 11, 13, 14 and 17 in Figure 2 involve signaling interaction between the UE and the AMF
  • the functions of the plurality of first DUs and CUs are: Encapsulating the signaling and then transparently transmitting the encapsulated signaling to the AMF or UE does not involve signaling interaction between the CU and multiple first DUs.
  • the first information is the signaling sent by the UE to the CU through multiple first DUs
  • the second information is the signaling returned by the AMF to the multiple first DUs through the CU, and each first DU will send the received AMF Signaling is sent to the UE.
  • the initial access of the UE involves RRC reconfiguration, that is, the second information is an RRC reconfiguration message sent by the CU to multiple first DUs, and each first DU sends an RRC reconfiguration message to the CU, and After the UE completes the RRC reconfiguration, the UE will send an RRC reconfiguration complete message to each first DU, and each first DU will send an RRC reconfiguration complete message to the CU in parallel, that is, the CU receives the RRC sent in parallel by each first DU. Reconfiguration complete message.
  • the CU after receiving the first information sent by multiple DUs in parallel, the CU sends the second information to each DU. That is, the CU interacts with multiple DUs in parallel, saving multiple DUs from interacting with the CU. time, shortening the total interaction time of multiple DU-CU interaction scenarios, thereby improving the efficiency of multiple DU-CU interaction scenarios to achieve their goals.
  • Figure 5 is a schematic flowchart of a positioning method provided by another embodiment of the present disclosure. Based on the embodiment shown in Figure 5, before step S102, it also includes:
  • Step S201 Determine a plurality of first information to be sent to the first DU.
  • each first DU will interact with each other.
  • Each first DU needs to interact with each other through the CU, that is, the first information includes the message to be sent by the first DU to other first DUs, and the first other DU sends the first information.
  • the first DU beyond the first DU.
  • the first information includes the identifier of the DU that needs to be interacted with, that is, the CU determines a plurality of first information to be sent to the first DU according to the identifier of the DU in the first information.
  • the first DU accessed by the UE includes DU1, DU2 and DU3, and message a of DU1 carries identifiers 2 and 3, then message a is a message sent by DU1 to DU2 and DU3; message b of DU2 carries identifiers 1 and 3, then DU2's message b is a message sent to DU1 and DU3; DU3's message c carries identifiers 1 and 2, and DU3's message c is a message sent to DU2 and DU1. Therefore, the first information to be sent to DU1 is message b and message c, the first information to be sent to DU2 is message a and message c, and the first information to be sent to DU3 is message a and message b.
  • Step S202 Determine second information of the first DU based on a plurality of first information to be sent to the first DU.
  • the CU integrates multiple first information based on the first DU into second information of the first DU.
  • the first information to be sent to DU1 is message b and message c
  • the second information of DU1 includes message b and message c
  • the first information to be sent to DU2 is message a and message c
  • the second information of DU2 is message a and message c.
  • the second information includes message a and message c
  • each of the first information to be sent to DU3 is message a and message b
  • the second information of DU3 includes message a and message b.
  • the first DU may send the parameters transmitted by the received CU to other first DUs.
  • the parameters are, for example, gNB-DU UE F1AP ID and gNB-DU ID. That is, the second information includes gNB-DU UE F1AP ID, gNB-DU ID.
  • each first DU sends a response to the CU in parallel that the second information has been received. That is, after step S201, it also includes: the CU receiving response messages sent in parallel by each first DU, and the response messages are used to prompt the first DU to respond to the second information.
  • the first DU stores the gNB-DU UE F1AP ID and gNB-DU ID, and the first DU sends a response message to the CU, that is, the response message is used to prompt the first DU to identify the gNB-DU UE F1AP ID and gNB-DU ID. Stored.
  • the CU integrates each first information to be sent to the first DU into the second information of the first DU, and then combines the second information of each first DU in parallel. Send to the corresponding first DU to complete the interaction between the first DUs in parallel, saving the interaction time between the first DUs.
  • Figure 6 is a schematic flowchart of an interaction method provided by yet another embodiment of the present disclosure. Based on the embodiment shown in Figure 4 or Figure 5, after step S102, it also includes:
  • Step S301 Receive the context modification response message of the UE sent in parallel by each first DU.
  • the interaction scenario between multiple DUs and CUs in this embodiment is gNB-DU mobility, that is, the UE switches from multiple first DUs accessed to multiple second DUs.
  • the second DU is the DU to be accessed by the UE.
  • the first DU is the DU currently accessed by the UE.
  • the first information is an uplink RRC message
  • the second information is a context modification request of the UE.
  • each first DU receives the UE's context modification request, it will send the UE's context modification response message to the CU in parallel.
  • the CU receives the UE's context modification response message sent in parallel by each first DU, that is, each first DU informs the CU It has completed the context modification to the UE.
  • Step S302 Send context establishment requests of the UE to multiple second DUs in parallel, where the second DU is the DU to be accessed by the UE.
  • Each second DU is a DU to be accessed by the UE.
  • the CU After receiving each first DU and sending a context modification response message of the UE, the CU sends the context establishment request of the UE to multiple second DUs in parallel.
  • Step S303 Receive context establishment response messages sent by each second DU in parallel to the UE.
  • each second DU After each second DU receives the UE's context establishment request, it connects to the UE through the UE's identity in the UE's context establishment request, allowing the UE to access multiple second DUs, that is, each second DU completes the context establishment with the UE.
  • Context establishment of the UE refers to establishing connections between multiple second DUs and the UE for information transmission.
  • Context modification of the UE refers to modifying the DU accessed by the UE.
  • each second DU After each second DU establishes a connection with the UE, each second DU sends a context establishment response message to the CU in parallel, that is, each second DU informs the CU that each second DU has connected to the UE.
  • Step S304 Send radio resource control RRC reconfiguration messages to each first DU in parallel.
  • each first DU After the UE establishes a connection with each second DU, the UE needs to perform RRC reconfiguration, that is, the CU sends an RRC reconfiguration message to each first DU. After receiving the RRC reconfiguration message, each first DU directly sends the RRC reconfiguration message to the UE without parsing it. That is, the CU transparently transmits the RRC reconfiguration message to the UE through each first DU.
  • the UE performs RRC reconfiguration, that is, establishing radio resource control between the UE and each second DU.
  • RRC reconfiguration that is, establishing radio resource control between the UE and each second DU.
  • the UE After the UE completes the RRC reconfiguration, it sends an RRC reconfiguration completion message to each second DU.
  • Each second DU will send the RRC reconfiguration completion message to the CU in parallel, that is, the CU receives the RRC reconfiguration completion message sent in parallel by each second DU. information.
  • each first DU includes a context session with the UE.
  • the CU sends a context release message to each first DU in parallel, that is, notifying each first DU to transfer the context related to the UE. The session is released.
  • each first DU After each first DU releases the context session, each first DU sends a context release completion message to the CU in parallel, that is, the CU receives the context release completion message sent in parallel by each first DU.
  • each second DU After each second DU sends an RRC reconfiguration completion message to the CU in parallel, each second DU has established an RRC connection. Each second DU can interact with each other. Each second DU sends interactive messages to the CU in parallel, that is, the CU receives interactive messages sent by multiple second DUs. The interactive messages include messages to be sent by the second DU and other second DUs, and the second other DUs send interactive messages. The second DU other than the second DU. The interaction message includes the identification of the DU that requires interaction, that is, the CU determines multiple interaction messages to be sent to the second DU according to the identification of the DU in the interaction message.
  • the second DU accessed by the UE includes DU4, DU5 and DU6, and message d of DU4 carries identifiers 5 and 6, then message d is a message sent by DU4 to DU5 and DU6; message e of DU5 carries identifiers 4 and 6, then The message e of DU5 is a message sent to DU4 and DU6; the message f of DU6 carries identifiers 4 and 5, and the message f of DU6 is a message sent to DU5 and DU4. Therefore, the respective interactive messages to be sent to DU4 are message e and message f, the respective interactive messages to be sent to DU5 are message d and message f, and the respective interactive messages to be sent to DU6 are message d and message e.
  • the CU sends multiple interaction messages corresponding to the second DU to each second DU.
  • each interactive message sent to DU4 is message e and message f
  • each interactive message sent to DU5 is message d and message f
  • each interactive message sent to DU6 is message d and message e.
  • the second DU may send the parameters transmitted by the received CU to other second DUs.
  • the parameters are, for example, gNB-DU UE F1AP ID and gNB-DU ID. That is, the second information includes gNB-DU UE F1AP ID, gNB-DU ID.
  • each second DU sends a response to the CU in parallel that the second information has been received. That is, after step S504, it also includes: the CU receiving response messages sent in parallel by each second DU, and the response messages are used to prompt the second DU to respond to the second information.
  • the second DU stores the gNB-DU UE F1AP ID and gNB-DU ID, and the second DU sends a response message to the CU, that is, the response message is used to prompt the second DU to identify the gNB-DU UE F1AP ID and gNB-DU ID. Stored.
  • the CU modifies the response based on the context of the UE sent in parallel by each first DU.
  • context establishment requests of the UE are sent to multiple second DUs in parallel, thereby causing the UE to switch from accessing the first DU to accessing the second DU, and because the CU performs parallel information exchange with multiple first DUs, the CU Parallel information exchange with multiple second DUs saves the time for the UE to switch from accessing the first DU to accessing the second DU.
  • Figure 7 is a schematic flowchart of an interaction method provided by yet another embodiment of the present disclosure. Based on the embodiments shown in any one of Figures 4 to 6, the interaction method also includes:
  • Step S401 If the UE moves from the first cell to the second cell, allocate corresponding first parameters to each first DU.
  • Step S402 Send the first parameters corresponding to the first DU to each first DU in parallel.
  • the interaction scenario between multiple first DUs and the CU is intra-gNB-DU handover.
  • each first DU accessed by the UE does not change, but the UE needs to change the parameters of the first cell to the second cell.
  • the parameters of the cell that is, the cell where the UE is located, changes, and each first DU needs to be re-established with the CU based on the cell after the UE moves.
  • the first cell and the second cell refer to communication cells.
  • the CU can position the UE to determine the location of the UE. Or the interaction information from the UE to the CU includes the location of the UE.
  • the CU may determine whether the first cell where the UE is currently located moves to any second cell based on the location of the UE. If it is detected that the UE moves from the first cell to the second cell, intra-gNB-DU handover needs to be performed. At this time, the CU sends the first parameter to each first DU.
  • the first parameter can be the new UL GTP TEID of the first DU.
  • Step S403 Receive the second parameters sent in parallel by each first DU, and re-establish a connection with each first DU.
  • each first DU After each first DU receives the first parameter, each first DU will send the second parameter to the CU in parallel.
  • the second parameter may be the new DL GTP TEID provided by each first DU.
  • each first DU uses the previous UL GTP TEID to send UL PDC PPDU to the CU until the CU and the first DU reconnect.
  • Establish RLC After the first DU establishes RLC with the CU, the first DU uses the new UL GTP TEID to send data to the CU.
  • the CU After receiving the second parameter, that is, after receiving the new UL GTP TEID provided by each first DU, the CU uses the DL GTP TEID previously provided by each first DU to send a request to each first DU.
  • the DU sends DL PDCP PDU until the CU performs PDCP reconstruction or recovery of PDCP data, and then the CU uses the new DL GTP TEID of the first DU to send data to the first DU.
  • the first parameter is used for the first DU to send data to the CU after the connection is re-established
  • the second parameter is used for the CU to send data to the first DU after the connection is re-established.
  • steps S401 to S403 shown in FIG. 7 are located after step S102, but steps S401 to S403 may be located at any position between step S101 and step S102.
  • the CU allocates corresponding first parameters to each first DU, so that each first DU sends data to the CU in the second cell based on the first parameters,
  • Each first DU will also send the second parameter to the CU in parallel, so that the CU sends data to each first DU of the second cell based on the second parameter.
  • Figure 8 is a schematic flowchart of an interaction method provided by yet another embodiment of the present disclosure. Based on the embodiments shown in any one of Figures 4 to 6, the interaction method also includes:
  • Step S501 If the UE switches from accessing multiple first DUs to multiple third DUs, allocate third parameters to each third DU.
  • Step S502 Send third parameters corresponding to the third DU to each third DU in parallel.
  • Intra-gNB-DU handover means that when the NR is operating, the UE switches from multiple accessed first DUs to multiple third DUs, and each first DU and each third DU are located in the same cell.
  • the third DU is the DU to be accessed by the UE in response to the operation of NR.
  • the CU will allocate the third parameter to each third DU.
  • the third parameter may be the UL GTP TEID assigned by the CU to each third DU.
  • Step S503 Receive the fourth parameters sent in parallel by each third DU, and re-establish connections with each first DU.
  • each third DU After each third DU receives the third parameter, each third DU will send the fourth parameter to the CU in parallel.
  • the fourth parameter may be the new DL GTP TEID provided by each third DU.
  • each third DU uses the previous UL GTP TEID to send UL PDC PPDU to the CU until the CU and the third DU are established.
  • RLC after the third DU establishes RLC with the CU, the third DU uses the new UL GTP TEID to send data to the CU.
  • the CU After receiving the fourth parameter, that is, after receiving the new UL GTP TEID provided by each third DU, the CU uses the DL GTP TEID previously provided by each third DU to send data to each third party.
  • the DU sends DL PDCP PDU until the CU performs PDCP reconstruction or recovery of PDCP data, and then the CU uses the new DL GTP TEID of the third DU to send data to the third DU.
  • the third parameter is used for the first DU to send data to the CU after the connection is re-established
  • the fourth parameter is used for the CU to send data to the first DU after the connection is re-established.
  • steps S501 to S503 shown in FIG. 7 are located after step S102, but steps S501 to S503 may be located at any position between step S101 and step S102.
  • the CU allocates corresponding third parameters to each third DU, so that each third DU sends data to the CU based on the third parameter, and each third DU
  • the fourth parameter is also sent to the CU in parallel, so that the CU sends data to each third DU based on the fourth parameter.
  • Figure 9 is a schematic flowchart of an interaction method provided by an embodiment of the present disclosure. It is applied to distributed unit entities.
  • the interaction method includes:
  • Step S601 Receive an instruction message sent by the user equipment UE.
  • the instruction message is used to instruct multiple distribution unit entities accessed by the UE to send information to the centralized unit entity CU in parallel.
  • Step S602 Send the first information to the CU according to the instruction message.
  • the centralized unit entity refers to the physical device of the CU
  • the distribution unit entity refers to the physical device of the DU.
  • the UE After accessing multiple DUs, the UE can decide whether the multiple DUs send information to the CU in parallel or serially.
  • the UE sends indication information to multiple accessed DUs, that is, the DU receives the indication information sent by the UE. If the indication information instructs multiple DUs to send information to the CU in parallel, then when multiple DUs need to communicate with each other, When the CU interacts, multiple DUs send the first information to the CU in parallel.
  • Step S603 Receive the second information sent by the CU.
  • the CU After receiving the first information sent by multiple DUs in parallel, the CU will uniformly send the second information to each DU.
  • the first information may be the initial uplink transmission of each first DU to the CU after receiving the RRC establishment request.
  • Radio resource control information and the second information is downlink radio resource control information transmitted by the CU to each first DU.
  • the initial uplink radio resource control information includes The C-RNTI (temporary identifier) and gNB-DU ID allocated by the UE to each first DU, that is, each first DU sends its own C-RNTI and gNB-DU ID to the CU through the first information.
  • the CU After receiving the first information, the CU generates the second information.
  • the second information includes the gNB-CU UE F1AP ID assigned by the CU and the RRC message generated by the CU.
  • the gNB-CU UE F1AP ID refers to the identification of the F1 application protocol between the CU and the UE, and the RRC message is the radio resource control establishment information.
  • the plurality of first DUs send the RRC message in the second information to the UE.
  • steps 6, 9, 11, 13, 14 and 17 in Figure 2 involve signaling interaction between the UE and the AMF
  • the functions of the plurality of first DUs and CUs are: Encapsulating the signaling and then transparently transmitting the encapsulated signaling to the AMF or UE does not involve signaling interaction between the CU and multiple first DUs.
  • the first information is the signaling sent by the UE to the CU through multiple first DUs
  • the second information is the signaling returned by the AMF to the multiple first DUs through the CU, and each first DU will send the received AMF Signaling is sent to the UE.
  • the initial access of the UE involves RRC reconfiguration, that is, the second information is an RRC reconfiguration message sent by the CU to multiple first DUs, and each first DU sends an RRC reconfiguration message to the CU, and After the UE completes the RRC reconfiguration, the UE will send an RRC reconfiguration complete message to each first DU, and each first DU will send an RRC reconfiguration complete message to the CU in parallel, that is, the CU receives the RRC sent in parallel by each first DU. Reconfiguration complete message.
  • the interaction scenarios between multiple DUs and CUs also include: multiple DUs interacting through the CU, inter-gNB-DU movement, and intra-gNB-DU handover.
  • multiple DUs will send messages to the CU in parallel. After the CU receives each message, it will send corresponding messages to each DU in parallel.
  • each DU sends messages to the CU in parallel and the CU sends messages to multiple DUs in parallel.
  • the messages sent please refer specifically to the embodiments shown in Figures 3 to 8, and will not be described again here.
  • the DU receives the indication message sent by the UE. Based on the indication message, the DU sends the first information to the CU in parallel with other DUs accessed by the UE, and the CU sends the second information in parallel to each DU accessed by the UE.
  • the CU interacts with multiple DUs in parallel, which saves the time for multiple DUs to interact with the CU and shortens the total interaction time in the interaction scenario between multiple DUs and CUs. Improved the efficiency of interaction scenarios between multiple DUs and CUs to achieve their goals.
  • Figure 10 is a schematic flowchart of an interaction method provided by an embodiment of the present disclosure.
  • interaction methods include:
  • Step S701 Send an instruction message to multiple distribution unit entities DU accessed by the user equipment.
  • the instruction message is used to instruct multiple DUs to send information in parallel to the centralized unit entity CU.
  • the centralized unit entity refers to the physical device of the CU
  • the distribution unit entity refers to the physical device of the DU.
  • the UE will select multiple DUs for access. In an example, the UE selects the number of access DUs based on its required transmission bandwidth, data transmission rate and other parameters. If the UE requires large transmission bandwidth and high data transmission rate, the UE selects a larger number of DUs for access. If the UE requires small transmission bandwidth and low data transmission rate, the UE selects a smaller number of DUs for access.
  • the UE accesses multiple DUs
  • data interaction between the UE and the CU needs to be performed through DU, and multiple DUs need to perform data interaction with the CU.
  • the DU currently accessed by the UE needs to interact with the CU, and multiple DUs to be accessed by the UE also need to interact with the CU.
  • handover within gNB-DU and interaction between DUs also require data exchange between multiple DUs and CU.
  • the UE sends indication information to each DU, so that during the interaction between multiple DUs and the CU, multiple DUs send messages to the CU in parallel, and the CU then feeds back to multiple CUs in parallel. corresponding message.
  • the interaction process between multiple DUs and CUs and the related messages sent in parallel refer to the embodiments shown in Figures 4 to 8, and will not be described again here.
  • the UE sends indication messages to multiple accessed DUs, so that multiple DUs send information to the CU in parallel, and the CU sends messages to multiple DUs in parallel.
  • the CU interacts with multiple DUs in parallel, which saves the time for multiple DUs to interact with the CU and shortens the total interaction time in the interaction scenario between multiple DUs and CUs. Improved the efficiency of interaction scenarios between multiple DUs and CUs to achieve their goals.
  • the positioning management entity may include a transceiver 1101, a processor 1102 and a memory 1103.
  • Transceiver 1101 for receiving and transmitting data under the control of processor 1102.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1102 and various circuits of the memory represented by memory 1103 are linked together.
  • the bus architecture can also integrate peripherals, voltage regulators, and power transistors Various other circuits, such as logic circuits, etc. are linked together, which are well known in the art, and therefore will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 1101 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 1102 is responsible for managing the bus architecture and general processing, and the memory 1103 can store data used by the processor 1102 when performing operations.
  • the processor 1102 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex). Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • Complex complex programmable logic device
  • CPLD Programmable Logic Device
  • the processor can also adopt a multi-core architecture.
  • the processor 1102 is configured to execute any method related to the centralized unit entity provided by the embodiment of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory 1103 .
  • the processor and memory can also be physically separated.
  • the processor 1102 implements the following operations when executing the computer program stored in the memory 1103:
  • the second information corresponding to the first DU is sent to each first DU in parallel.
  • processor 1102 is also configured to perform the following operations:
  • Second information of the first DU is determined based on a plurality of first information to be sent to the first DU.
  • processor 1102 is also configured to perform the following operations:
  • processor 1102 is also configured to perform the following operations:
  • processor 1102 is also configured to perform the following operations:
  • Radio resource control RRC reconfiguration messages are sent to each first DU in parallel.
  • processor 1102 is also configured to perform the following operations:
  • processor 1102 is also configured to perform the following operations:
  • processor 1102 is also configured to perform the following operations:
  • the first parameter is used for the first DU to send data to the centralized unit entity after the connection is re-established
  • the second parameter is used for the centralized unit entity to send data to the first DU after the connection is re-established.
  • processor 1102 is also configured to perform the following operations:
  • the third parameter is used for the first DU to send data to the centralized unit entity after the connection is re-established
  • the fourth parameter is used for the centralized unit entity to send data to the first DU after the connection is re-established.
  • the centralized unit entity includes:
  • the first receiving unit 1201 is used for multiple first distribution unit entities accessed by the user equipment UE.
  • the first sending unit 1202 is configured to send second information corresponding to the first DU to each first DU in parallel.
  • the centralized unit entity also includes:
  • a determining unit configured to determine a plurality of first information to be sent to the first DU
  • a determining unit configured to determine second information of the first DU based on a plurality of first information to be sent to the first DU.
  • the centralized unit entity also includes:
  • the first receiving unit 1201 is configured to receive response messages sent in parallel by each first DU.
  • the centralized unit entity also includes:
  • the first receiving unit 1201 is configured to receive RRC reconfiguration complete messages sent in parallel by each first DU.
  • the centralized unit entity also includes:
  • the first receiving unit 1201 is configured to receive the context modification response message of the UE sent in parallel by each first DU;
  • the first sending unit 1202 is configured to send context establishment requests of the UE to multiple second DUs in parallel, where the second DU is the DU to be accessed by the UE;
  • the first receiving unit 1201 is configured to receive the context establishment response message of each second DU sent in parallel to the UE;
  • the first sending unit 1202 is configured to send radio resource control RRC reconfiguration messages to each first DU in parallel.
  • the centralized unit entity also includes:
  • the first receiving unit 1201 is configured to receive each second DU and the RRC reconfiguration complete message sent in parallel.
  • the first sending unit 1202 is configured to send context release messages to each first DU in parallel;
  • the first receiving unit 1201 is configured to receive context release completion messages sent in parallel by each first DU.
  • the centralized unit entity also includes:
  • the first receiving unit 1201 is configured to receive interactive messages sent in parallel by multiple second DUs;
  • the first sending unit 1202 is configured to send multiple interaction messages corresponding to the second DU to each second DU in parallel;
  • the first receiving unit 1201 is configured to receive response messages sent in parallel by each second DU.
  • the centralized unit entity also includes:
  • An allocation unit configured to allocate corresponding first parameters to each first DU if the UE moves from the first cell to the second cell;
  • the first sending unit 1202 is configured to send the first parameters corresponding to the first DU to each first DU in parallel;
  • the first receiving unit 1201 is configured to receive the second parameters sent in parallel by each first DU, and re-establish a connection with each first DU, where the first parameters are used by the first DU to send to the centralized unit entity after the connection is re-established. Data, the second parameter is used by the centralized unit entity to send data to the first DU after the connection is re-established.
  • the centralized unit entity also includes:
  • An allocation unit configured to allocate third parameters to each third DU if the UE switches from multiple accessed first DUs to multiple third DUs;
  • the first sending unit 1202 is configured to send the third parameters corresponding to the third DU to each third DU in parallel;
  • the first receiving unit 1201 is configured to receive the fourth parameter sent in parallel by each third DU, and re-establish a connection with each first DU, where the third parameter is used by the first DU to send to the centralized unit entity after the connection is re-established. Data, the fourth parameter is used for the centralized unit entity to send data to the first DU after the connection is re-established.
  • the centralized unit entity provided by the present disclosure can implement all the method steps implemented by the above interactive method embodiments, and can achieve the same technical effect. The differences between this embodiment and the method embodiments are no longer discussed here. The same parts and beneficial effects will be described in detail.
  • the distributed unit entity may include a transceiver 1301, a processor 1302, and a memory 1303.
  • Transceiver 1301 for receiving and transmitting data under the control of processor 1302.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1302 and various circuits of the memory represented by memory 1303 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1301 may be a plurality of elements, including a transmitter and a receiver, provided for communicating with various other devices over a transmission medium. Device communication unit, these transmission media include wireless channels, wired channels, optical cables and other transmission media.
  • the processor 1302 is responsible for managing the bus architecture and general processing, and the memory 1303 can store data used by the processor 1302 when performing operations.
  • the processor 1302 may be a central processing unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (Field-Programmable Gate Array, FPGA) or a Complex Programmable Logic Device (Complex). Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • Complex Complex Programmable Logic Device
  • CPLD Complex Programmable Logic Device
  • the processor can also adopt a multi-core architecture.
  • the processor 1302 is configured to execute any method related to positioning a reference device provided by the embodiment of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory 1303 .
  • the processor and memory can also be physically separated.
  • the processor 1302 implements the following operations when executing the computer program stored in the memory 1303:
  • the distribution unit entity includes:
  • the second receiving unit 1401 is configured to receive an instruction message sent by the user equipment UE, where the instruction message is used to instruct multiple distribution unit entities accessed by the UE to send information to the centralized unit entity CU in parallel;
  • the second sending unit 1402 is configured to send the first information to the CU according to the instruction message.
  • the second receiving unit 1401 is also used to receive the second information sent by the CU.
  • the distribution unit entity provided by the present disclosure can implement all the method steps implemented in the above method embodiments, and can achieve the same technical effects.
  • the same features as those in the method embodiments in this embodiment are no longer discussed here. Some of them and their beneficial effects will be described in detail.
  • the embodiment of the present disclosure provides a user equipment.
  • the user equipment may include Transceiver 1501, processor 1502 and memory 1503.
  • Transceiver 1501 for receiving and transmitting data under the control of processor 1502.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1502 and various circuits of the memory represented by memory 1503 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • the transceiver 1501 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 1502 is responsible for managing the bus architecture and general processing, and the memory 1503 can store data used by the processor 1502 when performing operations.
  • the processor 1502 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex). Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • Complex complex programmable logic device
  • CPLD Programmable Logic Device
  • the processor can also adopt a multi-core architecture.
  • the processor 1502 is configured to execute any method related to the user equipment provided by the embodiment of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory 1503.
  • the processor and memory can also be physically separated.
  • the processor 1502 implements the following operations when executing the computer program stored in the memory 1503:
  • Instruction messages are sent to multiple distribution unit entities DU accessed by the user equipment, and the indication messages are used to instruct the multiple DUs to send information in parallel to the centralized unit entity CU.
  • an embodiment of the present disclosure provides a user equipment.
  • the user equipment includes:
  • the third sending unit 1601 is configured to send an indication message to multiple distribution unit entities DU accessed by the user equipment.
  • the indication message is used to instruct multiple DUs to send information in parallel to the centralized unit entity CU.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit may be stored in a processor-readable storage medium if it is implemented in the form of a software functional unit and sold or used as an independent product.
  • the technical solution of the present disclosure is essentially or contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods of various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .
  • the embodiment of the present disclosure provides a processor-readable storage medium.
  • the processor-readable storage medium stores a computer program.
  • the computer program is used to cause the processor to execute the relevant centralized unit entity, distribution unit entity or user provided by the embodiment of the present disclosure. Either method of the device.
  • the processor can implement all the method steps implemented by the centralized unit entity, the distributed unit entity or the user equipment in the above method embodiment, and can achieve the same technical effect.
  • the parts in this embodiment that are the same as those in the method embodiment will no longer be discussed here. and beneficial effects are described in detail.
  • the processor-readable storage medium may be any available media or data storage device that the processor can access, including but not limited to magnetic storage (such as floppy disks, hard disks, tapes, magneto-optical disks (MO), etc.), optical storage (such as CDs, DVD, BD, HVD, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.
  • magnetic storage such as floppy disks, hard disks, tapes, magneto-optical disks (MO), etc.
  • optical storage such as CDs, DVD, BD, HVD, etc.
  • semiconductor memories such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)
  • Embodiments of the present disclosure provide a computer program product containing instructions. When the instructions are run on a computer, they cause the computer to perform all the method steps implemented by the centralized unit entity, the distributed unit entity or the user equipment in the above method embodiments, and The same technical effect can be achieved, and the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.
  • embodiments of the present disclosure may be provided as methods, location management entities, or computer program products. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) embodying computer-usable program code therein.
  • computer-usable storage media including, but not limited to, magnetic disk storage, optical storage, and the like
  • processor-executable instructions may also be stored in a processor-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the generation of instructions stored in the processor-readable memory includes the manufacture of the instruction means product, the instruction device implements the function specified in one process or multiple processes in the flow chart and/or one block or multiple blocks in the block diagram.
  • processor-executable instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the computer or other programmable device to
  • the instructions that are executed provide steps for implementing the functions specified in a process or processes of the flowchart diagrams and/or a block or blocks of the block diagrams.

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Abstract

本公开提供一种交互方法和相关设备，该方法包括：接收用户设备UE接入的多个第一分布单元实体DU并行发送的第一信息；并行向各个所述第一DU发送所述第一DU对应的第二信息。

Description

交互方法和相关设备
本公开要求于2022年05月16日提交中国专利局、申请号为202210530972.6、申请名称为“交互方法和相关设备”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及数据交互技术领域，尤其涉及一种交互方法和相关设备。
背景技术
在5G***中，基站的结构发生了演进，一个基站包括一个CU(Centralized Unit，集中单元)和多个DU(Distributed Unit，分布单元)。
在UE(User Equipment，用户设备)的初始接入、UE从当前接入的DU移动至其他DU的接入、DU的内切换等交互场景中，多个DU需要与CU进行交互。
示例性技术中，多个DU与CU进行交互的方式为：一个DU与CU交互完成后，再完成下一个DU与CU的交互。假设DU与CU的交互时间为T，一个DU与CU的交互时间则为2T，若与CU交互的DU的数量为N，则多个DU与CU的交互时间为2NT。
可见，涉及多个DU与CU的交互场景所需的交互时间过长，导致交互场景达成目的所需的时间较长，使得交互场景达成目的的效率较低。
发明内容
本公开提供一种交互方法和相关设备，用以解决多个DU与CU的交互场景所达成目的的效率较低的问题。
一方面，本公开提供一种交互方法，应用于集中单元实体，该方法包括：
接收用户设备UE接入的多个第一分布单元实体DU并行发送的第一信息；
并行向各个所述第一DU发送所述第一DU对应的第二信息。
作为一种可选的实施方式，所述并行向各个第一DU发送所述第一DU对应的第二信息之前，还包括：
确定待发送至所述第一DU的多个第一信息；
根据待发送至所述第一DU的多个第一信息确定所述第一DU的第二信息。
作为一种可选的实施方式，所述并行向各个所述第一DU发送所述第一DU对应的第二信息，还包括：
接收各个所述第一DU并行发送的响应消息。
作为一种可选的实施方式，所述第二信息是RRC重配置消息，所述并行向各个所述第一DU发送所述第一DU对应的第二信息之后，还包括：
接收各个所述第一DU并行发送的RRC重配置完成消息。
作为一种可选的实施方式，所述多个第一DU是所述UE当前接入的DU，所述并行向各个第一DU发送所述第一DU对应的第二信息，还包括：
接收各个所述第一DU并行发送的所述UE的上下文修改响应消息；
向多个第二DU并行发送所述UE的上下文建立请求，所述第二DU是所述UE待接入的DU；
接收各个所述第二DU并行发送所述UE的上下文建立响应消息；
并行向各个所述第一DU发送无线资源控制RRC重配置消息。
作为一种可选的实施方式，所述并行向各个所述第一DU发送无线资源控制RRC重配置消息之后，还包括：
接收各个所述第二DU并行发送的RRC重配置完成消息；
并行向各个所述第一DU发送上下文释放消息；
接收各个所述第一DU并行发送的上下文释放完成消息。
作为一种可选的实施方式，所述接收各个所述第二DU并行发送的RRC重配置完成消息之后，还包括：
接收多个所述第二DU并行发送的交互消息；
向各个所述第二DU并行发送所述第二DU对应的所述多个交互消息；
接收各个所述第二DU并行发送的响应消息。
作为一种可选的实施方式，还包括：
若所述UE从第一小区移动至第二小区，对各个所述第一DU分配对应的第一参数；
向各个第一DU并行发送所述第一DU对应的第一参数；
接收各个所述第一DU并行发送的第二参数，并与各个所述第一DU重新建立连接；
其中，所述第一参数用于所述第一DU向重新建立连接后的所述集中单元实体发送数据，所述第二参数用于所述集中单元实体向重新建立连接后的所述第一DU发送数据。
作为一种可选的实施方式，还包括：
若所述UE从接入的多个第一DU切换至多个第三DU，对各个所述第三DU分配第三参数，其中，各个所述第三DU与各个所述第一DU位于同一小区；
向各个所述第三DU并行发送所述第三DU对应的第三参数；
接收各个所述第三DU并行发送的第四参数，并与各个所述第一DU重新建立连接；
其中，所述第三参数用于所述第一DU向重新建立连接后的所述集中单元实体发送数据，所述第四参数用于所述集中单元实体向重新建立连接后的所述第一DU发送数据。
另一方面，本公开还提供一种交互方法，应用于分布单元实体，所述交互方法包括：
接收用户设备UE发送的指示消息，所述指示消息用于指示所述UE接入的多个分布单元实体并行向集中单元实体CU发送信息；
根据所述指示消息向所述CU发送第一信息；
接收所述CU发送的第二信息。
另一方面，本公开还提供一种交互方法，应用于用户设备，所述交互方法包括：
向所述用户设备接入的多个分布单元实体DU发送指示消息，所述指示消息用于指示所述多个DU向集中单元实体CU并行发送信息。
另一方面，本公开还提供一种集中单元实体，包括存储器，收发机，处理器：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
接收用户设备UE接入的多个第一分布单元实体DU并行发送的第一 信息；
并行向各个所述第一DU发送所述第一DU对应的第二信息。
另一方面，本公开还提供一种集中单元实体，包括：
第一接收单元，用于接收用户设备UE接入的多个第一分布单元实体DU并行发送的第一信息；
第一发送单元，用于并行向各个所述第一DU发送所述第一DU对应的第二信息。
另一方面，本公开还提供一种分布单元实体，包括存储器，收发机，处理器：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
接收用户设备UE发送的指示消息，所述指示消息用于指示所述UE接入的多个分布单元实体并行向集中单元实体CU发送信息；
根据所述指示消息向所述CU发送第一信息；
接收所述CU发送的第二信息。
另一方面，本公开还提供一种分布单元实体，包括：
第二接收单元，用于接收用户设备UE发送的指示消息，所述指示消息用于指示所述UE接入的多个分布单元实体并行向集中单元实体CU发送信息；
第二发送单元，用于根据所述指示消息向所述CU发送第一信息；
所述第二接收单元，还用于接收所述CU发送的第二信息。
另一方面，本公开还提供一种用户设备，包括存储器，收发机，处理器：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
向所述用户设备接入的多个分布单元实体DU发送指示消息，所述指示消息用于指示所述多个DU向集中单元实体CU并行发送信息。
另一方面，本公开还提供一种用户设备，包括：
第三发送单元，用于向所述用户设备接入的多个分布单元实体DU发送指示消息，所述指示消息用于指示所述多个DU向集中单元实体CU并行发送信息。
另一方面，本公开还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行如上所述的方法。
本公开提供一种交互方法和相关设备，CU接收到多个DU并行发送的第一信息后，向各个DU发送第二信息，也即CU是并行的与多个DU进行交互，节省了多个DU与CU进行交互的时间，缩短了多个DU与CU的交互场景的总交互时间，进而提高了多个DU与CU的交互场景达成目的的效率。
应当理解，上述发明内容部分中所描述的内容并非旨在限定本公开的实施例的关键或重要特征，亦非用于限制本公开的范围。本公开的其它特征将通过以下的描述变得容易理解。
附图说明
为了更清楚地说明本公开或相关技术中的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲，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为本公开实施例体罚的应用场景的示意图；
图2为本公开涉及的DU与CU的一交互示意图；
图3为本公开涉及的DU与CU的另一交互示意图；
图4为本公开集中单元实体的一实施例流程示意图；
图5为本公开集中单元实体的另一实施例流程示意图；
图6为本公开集中单元实体的又一实施例流程示意图；
图7为本公开集中单元实体的再一实施例流程示意图；
图8为本公开集中单元实体的还一实施例流程示意图；
图9为本公开分布单元实体的一实施例流程示意图；
图10为本公开用户设备的一实施例流程示意图；
图11为本公开集中单元实体的硬件结构示意图；
图12为本公开集中单元实体的功能模块示意图；
图13为本公开分布单元实体的硬件结构示意图；
图14为本公开分布单元实体的功能模块示意图；
图15为本公开用户设备的硬件结构示意图；
图16为本公开用户设备的功能模块示意图。
具体实施方式
本公开中术语“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。
本公开实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，并不是全部的实施例。基于本公开中的实施例，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他实施例，都属于本公开保护的范围。
本公开实施例提供了一种交互方法及相关设备，用以解决多个DU与CU的交互场景所达成目的的效率较低的问题。
其中，方法和本公开涉及的装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
本公开实施例提供的技术方案可以适用于多种***，尤其是5G***。例如适用的***可以是全球移动通讯(global system of mobile communication，GSM)***、码分多址(code division multiple access，CDMA)***、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)通用分组无线业务(general packet radio service，GPRS)***、长期演进(long term evolution，LTE)***、LTE频分双工(frequency division duplex，FDD)***、LTE时分双工(time division duplex，TDD)***、高级长期演进(long term evolution advanced，LTE-A)***、通用移动***(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide  interoperability for microwave access，WiMAX)***、5G新空口(New Radio,NR)***等。这多种***中均包括终端设备和网络设备。***中还可以包括核心网部分，例如演进的分组***(Evloved Packet System,EPS)、5G***(5GS)等。
本公开实施例涉及的终端设备，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的***中，终端设备的名称可能也不相同，例如在5G***中，终端设备可以称为用户设备(User Equipment，UE)。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端设备也可以称为***、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户设备设备(user terminal)、用户代理(user agent)、用户装置(user device)，本公开实施例中并不限定。
本公开实施例涉及的网络设备，可以是基站，该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同，基站又可以称为接入点，或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备，或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol，IP)分组进行相互更换，作为无线终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如，本公开实施例涉及的网络设备可以是全球移动通信***(Global System for Mobile communications，GSM)或码分多址接入(Code Division Multiple Access，CDMA)中的网络设备(Base Transceiver Station，BTS)，也可以是带宽 码分多址接入(Wide-band Code Division Multiple Access，WCDMA)中的网络设备(NodeB)，还可以是长期演进(long term evolution，LTE)***中的演进型网络设备(evolutional Node B，eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB)，也可以是家庭演进基站(Home evolved Node B，HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等，本公开实施例中并不限定。在一些网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点和分布单元(distributed unit，DU)节点，集中单元和分布单元也可以地理上分开布置。
网络设备与终端设备之间可以各自使用一或多根天线进行多输入多输出(Multi Input Multi Output,MIMO)传输，MIMO传输可以是单用户MIMO(Single User MIMO,SU-MIMO)或多用户MIMO(Multiple User MIMO,MU-MIMO)。根据根天线组合的形态和数量，MIMO传输可以是2D-MIMO、3D-MIMO、FD-MIMO或massive-MIMO，也可以是分集传输或预编码传输或波束赋形传输等。
为了更好的对本公开的实施例进行描述，以下对本公开实施例出现的名词进行解释：
UE：User Equipment，用户设备；
DU：Distributed Unit，分布单元；
gNB-DU：the next generation NodeB Distributed Unit，5G基站的分布单元；
CU：Centralized Unit，集中单元；
gNB-DU：the next generation NodeB Centralized Unit，5G基站的集中单元；
RRC：Radio Resource Control，无线资源控制；
F1AP：F1application protocol，F1应用协议；
AMF：Access and Mobility Management，接入与移动性管理功能；
C-RNTI：临时标识符；
gNB-DU ID：5G基站的分布单元的标识；
RLC：Radio Link Control，无线链路层控制协议；
UL GTP TEID：上行GPRS隧道协议的字段；
GTP：GPRS Tunneling Protocol，GPRS隧道协议；
GPRS：General packet radio service，通用无线分组业务；
UL：Uplink，上行；
PDCP：Packet Data Convergence Protocol，分组数据汇聚协议；
DL：Downlink，下行；
PDU：Protocol Data Unit，协议数据单元。
PDC：Primary Domain Controller，主域控制器；
PPDU：Presentation Protocol Data Unit，协议数据单元；
NR：New Radio，新空口。
图1是本公开实施例提供的应用场景的示意图。如图1所示，本实施例提供的交互方法涉及UE、多个gNB-DU以及gNB-CU，多个gNB-DU例如为gNB-DU1、gNB-DU2以及gNB-DU3。UE接入各个gNB-DU，且CU可向接入的各个gNB-DU发送消息，该消息用于指示各个gNB-DU向gNB-CU并行发送消息或串行发送消息。并行发送消息指的是，多个gNB-DU在相同的时间段内均向gNB-CU发送消息。串行发送消息指的是，在UE接入的多个gNB-DU中的一个gNB-DU与gNB-CU完成信息交互后，UE接入的另一个gNB-DU与gNB-CU再进行信息交互。若多个gNB-DU并行向gNB-CU发送消息，则gNB-CU也会并行向多个gNB-DU发送消息。本公开中涉及的多个DU与CU的交互场景包括UE的初始接入、gNB-DU的间移动以及gNB-DU的内切换。UE的初始接入指的是UE接入多个gNB-DU的场景。gNB-DU的间移动指的是，UE从接入的多个gNB-DU切换至接入其他的多个gNB-DU。gNB-DU的内切换指的是：UE从一个小区移动至另一个小区，UE从接入UE移动前的小区的gNB-DU切换为接入UE移动后的gNB-DU；或者，gNB-DU的内切换指的是，UE在小区的接入的gNB-DU切换至该小区的另一个gNB-DU。
UE的初始接入，以及gNB-DU的间移动所涉及的流程较多，以下对两个交互场景的流程进行说明。
参照图2、UE的初始接入的流程如下：
1、UE向DU(以下将gNB-DU简称为DU)发送RRC建立请求；
2、DU向CU(以下将gNB-CU简称为CU)传输初始的上行无线资源控制信息；
3、CU向DU传输下行无线资源控制信息；
4、DU与UE的RRC Setup(无线资源控制建立)；
5、UE向DU发送无线资源控制建立完成的信息；
6、DU向CU传输上行无线资源控制消息；
7、CU向AMF传输初始的UE的消息；
8、AMF向CU发送初始的上下文建立请求；
9、CU向DU发送UE的上下文建立请求；
10、DU向UE发送安全模式命令；
11、DU向CU发送UE的上下文建立已响应；
12、UE向DU发送安全模式完成；
13、DU向CU传输上行无线资源控制消息；
14、CU向DU传输下行无线资源控制消息；
15、DU向UE发送RRC重配置的请求；
16、UE向DU发送RRC重配置完成的信息；
17、DU向CU传输上行无线资源控制消息；
18、CU向AMF发送初始的上下文建立响应。
参照图3，gNB-DU的间移动的流程如下：
在UE接入Source gNB-DU(以下简称源DU)后，CU向UE、以及UE接入的源DU发送下行用户数据，UE向源DU向以及CU发送下行用户数据。
1、UE向源DU发送测量报告；
2、源DU向CU传输上行无线资源控制消息；
2a、CU向源DU发送UE的上下文修改请求；
2b、源DU向CU发送UE的上下文修改响应；
3、CU向UE待接入的Target gNB-DU(以下简称目标DU)发送UE的上下文修改请求；
4、目标DU向CU发送UE的上下文修改响应；
5、CU向源DU发送UE的上下文修改请求，上下文修改请求即为RRC重配置；
6、源DU向UE发送RRC重配置的请求；
7、源DU以下行数据传输状态，向CU发送UE的上下文建立响应；
8、UE与目标DU的随机接入流程，在此过程中目标DU以下行数据传输状态向CU传输消息；
9、UE以下行数据传输状态向目标DU发送RRC重配置完成的消息；
10、目标DU向CU传输RRC重配置完成的消息；
11、CU向源DU发送UE的上下文释放命令；
12、源DU向CU发送UE的上下文释放完成的消息。
需要说明的是，图2以UE接入的一个DU与UE、CU进行交互进行举例，UE接入的其他DU与UE、CU进行交互的流程与图2所示的流程相同。图3以UE接入的一个源DU以及一个待接入的目标DU为例进行说明，UE与接入的其他源DU之间的交互，以及UE切换至其他目标DU所涉及的交互，与图3所示的流程一致。
本公开提供一种交互方法。
参照图4，图4为本公开实施例所提供的交互方法的流程示意图，应用于集中单元实体，该方法包括：
步骤S101，接收用户设备UE接入的多个第一分布单元实体DU并行发送的第一信息。
在本实施例中，集中单元实体指的是CU的实体设备，分布单元实体则指的是DU的实体设备。
UE会选择多个DU接入，UE接入的DU定义为第一DU。UE与多个DU接入后，多个DU会与CU进行交互。在多个第一DU与CU的交互场景中，多个第一DU并行向CU发送信息，该信息定义为第一信息，也即CU接收UE接入的多个第一DU并行发送的第一信息。
UE在接入多个第一DU后，可以决定多个第一DU并行或者串行向CU发送信息。
在一示例中，UE向接入的多个第一DU发送指示信息，若是指示信息是指示多个第一DU并行向CU发送信息，则在多个第一DU在需要与CU进行交互时，多个第一DU并行向CU发送第一信息。
步骤S102，并行向各个第一DU发送第一DU对应的第二信息。
CU在接收到多个第一DU并行发送的第一信息后，会统一向各个第一DU发送第二信息。
在一示例中，若是多个第一DU与CU是在UE的初始接入的场景中 进行交互，则第一信息可以是各个第一DU接收到RRC的建立请求后向CU传输的初始的上行无线资源控制信息，而第二信息则是CU向各个第一DU传输的下行无线资源控制信息。初始的上行无线资源控制信息包括有UE对各个第一DU分配的C-RNTI(临时标识符)以及gNB-DU ID，也即各个第一DU通过第一信息将自身的C-RNTI以及gNB-DU ID发送至CU。CU接收第一信息后，会生成第二信息，第二信息包括CU分配的gNB-CU UE F1AP ID以及CU生成的RRC message。gNB-CU UE F1AP ID指的是CU与UE之间的F1应用协议的标识，RRC message为无线资源控制建立信息。多个第一DU接收到第二信息后，将第二信息中的RRC message发送至UE。
在另一示例中，参照图2中的6、9、11、13、14以及17的步骤涉及的是UE与AMF之间信令的交互，且多个第一DU与CU起到的作用是将信令进行封装，然后将封装的信令透传至AMF或者UE，并不涉及CU与多个第一DU之间的信令交互。第一信息是UE通过多个第一DU向CU发送的信令时，则第二信息是AMF通过CU向多个第一DU返回的信令，且各个第一DU会将接收的AMF发送的信令发送至UE。
在又一示例中，UE的初始接入会涉及到RRC重配置，也即第二信息是CU向多个第一DU发送的RRC重配置消息，各个第一DU向CU发送RRC重配置，并且UE在完成RRC重配置后，UE会向各个第一DU发送RRC重配置完成消息，各个第一DU则会向CU并行发送RRC重配置完成消息，也即CU接收各个第一DU并行发送的RRC重配置完成消息。
在本实施例中，CU接收到多个DU并行发送的第一信息后，向各个DU发送第二信息，也即CU是并行的与多个DU进行交互，节省了多个DU与CU进行交互的时间，缩短了多个DU与CU的交互场景的总交互时间，进而提高了多个DU与CU的交互场景达成目的的效率。
参照图5，图5为本公开另一实施例提供的定位方法的流程示意图，基于图5所示的实施例，步骤S102之前，还包括：
步骤S201，确定待发送至第一DU的多个第一信息。
在本实施例中，在UE接入多个第一DU后，各个第一DU之间会进行交互。而各个第一DU之间需要通过CU进行交互，也即第一信息包括第一DU向其他第一DU待发送的消息，第一其他DU是发送第一信息的 第一DU之外的第一DU。第一信息中包括有需要交互的DU的标识，也即CU根据第一信息中DU的标识确定待发送至第一DU的多个第一信息。例如，UE接入的第一DU包括DU1、DU2以及DU3，DU1的消息a携带标识2和3，则消息a是DU1发送给DU2以及DU3的消息；DU2的消息b携带标识1和3，则DU2的消息b是发送给DU1以及DU3的消息；DU3的消息c携带标识1和2，且DU3的消息c是发送给DU2以及DU1的消息。因此，待发送至DU1的各个第一信息是消息b以及消息c，待发送至DU2的各个第一信息是消息a以及消息c，待发送至DU3的各个第一信息是消息a以及消息b。
步骤S202，根据待发送至第一DU的多个第一信息确定第一DU的第二信息。
CU基于第一DU的多个第一信息整合为第一DU的第二信息。例如，待发送至DU1的各个第一信息是消息b以及消息c，则DU1的第二信息包括消息b以及消息c；待发送至DU2的各个第一信息是消息a以及消息c，则DU2第二信息包括消息a以及消息c；待发送至DU3的各个第一信息是消息a以及消息b，则DU3第二信息包括消息a以及消息b。
多个第一DU进行交互，可以是第一DU将接收到的CU传输的参数发送给其他的第一DU，参数例如为gNB-DU UE F1AP ID、gNB-DU ID，也即第二信息包括gNB-DU UE F1AP ID、gNB-DU ID。此外，在各个第一DU接收到包含gNB-DU UE F1AP ID、gNB-DU ID等参数的第二信息，各个第一DU并行向CU发送已接收到第二信息的响应。也即在步骤S201之后，还包括：CU接收各个第一DU并行发送的响应消息，响应消息用于提示第一DU对第二信息进行响应。例如，第一DU存储gNB-DU UE F1AP ID以及gNB-DU ID，第一DU则向CU发送响应消息，也即响应消息用于提示第一DU对gNB-DU UE F1AP ID以及gNB-DU ID进行了存储。
在本实施例中，各个第一DU若是进行交互，则CU将待发送至第一DU的各个第一信息整合为第一DU的第二信息，再将每个第一DU的第二信息并行发送至对应的第一DU，以并行的完成各个第一DU之间的交互，节省各个第一DU之间的交互时间。
参照图6，图6为本公开又一实施例提供的交互方法的流程示意图，基于图4或图5所示的实施例，步骤S102之后，还包括：
步骤S301，接收各个第一DU并行发送的UE的上下文修改响应消息。
本实施例多个DU与CU的交互场景是gNB-DU的间移动，也即UE从接入的多个第一DU切换至多个第二DU，第二DU是UE待接入的DU，多个第一DU为UE当前接入的DU。
在本实施例中，第一信息是上行RRC消息，而第二信息是UE的上下文修改请求。各个第一DU接收到UE的上下文修改请求后，会并行向CU发送UE的上下文修改响应消息，CU即接收各个第一DU并行发送的UE的上下文修改响应消息，也即各个第一DU告知CU自身已完成对UE的上下文修改。
步骤S302，向多个第二DU并行发送UE的上下文建立请求，第二DU是UE待接入的DU。
各个第二DU是UE待接入的DU，CU在接收到各个第一DU发送UE的上下文修改响应消息，CU向多个第二DU并行发送UE的上下文建立请求。
步骤S303，接收各个第二DU并行发送UE的上下文建立响应消息。
各个第二DU接收到UE的上下文建立请求后，通过UE的上下文建立请求中UE的标识与UE进行连接，使得UE接入多个第二DU，也即使得各个第二DU完成与UE的上下文建立。UE的上下文建立指的是多个第二DU与UE建立连接，以用于信息传输。UE的上下文修改指的是修改UE接入的DU。
各个第二DU在建立与UE的连接后，各个第二DU并行向CU发送上下文建立响应消息，也即各个第二DU告知CU各个第二DU已连接UE。
步骤S304，并行向各个第一DU发送无线资源控制RRC重配置消息。
在UE与各个第二DU建立连接后，则UE需要进行RRC的重配置，也即CU向各个第一DU发送RRC重配置消息。各个第一DU接收到RRC重配置消息后，不做解析，直接将RRC重配置消息发送至UE，也即CU通过各个第一DU将RRC重配置消息透传至UE。
在一示例中，UE会进行RRC重配置，也即建立UE与各个第二DU之间的无线资源控制的建立。UE在完成RRC重配置，向各个第二DU发送RRC重配置完成消息，各个第二DU会将RRC重配置完成消息并行发送至CU，也即CU接收各个第二DU并行发送的RRC重配置完成消息。 此时各个第一DU中包括有与UE的上下文会话，为了腾出各个第一DU的存储空间，CU并行向各个第一DU发送上下文释放消息，也即通知各个第一DU将UE相关的上下文会话进行释放。各个第一DU释放完上下文会话后，各个第一DU则并行向CU发送上下文释放完成消息，也即CU接收各个第一DU并行发送的上下文释放完成消息。
在各个第二DU并行向CU发送RRC重配置完成消息后，各个第二DU已经建立了RRC连接。各个第二DU之间可进行交互。各个第二DU则并行向CU发送交互消息，也即CU接收多个第二DU发送的交互消息，交互消息包括第二DU想其他第二DU待发送的消息，第二其他DU是发送交互信息的第二DU之外的第二DU。交互消息中包括有需要交互的DU的标识，也即CU根据交互消息中DU的标识确定待发送至第二DU的多个交互消息。例如，UE接入的第二DU包括DU4、DU5以及DU6，DU4的消息d携带标识5和6，则消息d是DU4发送给DU5以及DU6的消息；DU5的消息e携带标识4和6，则DU5的消息e是发送给DU4以及DU6的消息；DU6的消息f携带标识4和5，且DU6的消息f是发送给DU5以及DU4的消息。因此，待发送至DU4的各个交互消息是消息e以及消息f，待发送至DU5的各个交互消息是消息d以及消息f，待发送至DU6的各个交互消息是消息d以及消息e。
CU向各个第二DU发送第二DU对应的多个交互消息。例如，向DU4发送的各个交互消息是消息e以及消息f；向DU5发送的各个交互消息是消息d以及消息f；向DU6发送的各个交互消息是消息d以及消息e。
多个第二DU进行交互，可以是第二DU将接收到的CU传输的参数发送给其他的第二DU，参数例如为gNB-DU UE F1AP ID、gNB-DU ID，也即第二信息包括gNB-DU UE F1AP ID、gNB-DU ID。此外，在各个第二DU接收到包含gNB-DU UE F1AP ID、gNB-DU ID等参数的第二信息，各个第二DU并行向CU发送已接收到第二信息的响应。也即在步骤S504之后，还包括：CU接收各个第二DU并行发送的响应消息，响应消息用于提示第二DU对第二信息进行响应。例如，第二DU存储gNB-DU UE F1AP ID以及gNB-DU ID，第二DU则向CU发送响应消息，也即响应消息用于提示第二DU对gNB-DU UE F1AP ID以及gNB-DU ID进行了存储。
在本实施例中，CU基于各个第一DU并行发送的UE的上下文修改响 应消息，向多个第二DU并行发送UE的上下文建立请求，从而使得UE从接入第一DU切换至接入第二DU，且由于CU与多个第一DU进行并行的信息交互、CU与多个第二DU进行并行的信息交互，节省了UE从接入第一DU切换至接入第二DU的时间。
参照图7，图7为本公开再一实施例提供的交互方法的流程示意图，基于图4-图6任一所示的实施例，交互方法还包括：
步骤S401，若UE从第一小区移动至第二小区，对各个第一DU分配对应的第一参数。
步骤S402，向各个第一DU并行发送第一DU对应的第一参数。
在本实施例中，多个第一DU与CU的交互场景为gNB-DU的内切换。具体的，UE从一个小区(第一小区)移动至第二小区(第二小区)，UE所接入的各个第一DU并未发生变化，但UE需将第一小区的参数更改为第二小区的参数，也即UE所在的小区发生变化，各个第一DU基于UE移动后的小区需要与CU重新建立。第一小区以及第二小区指的是通信小区。
UE通过多个DU与CU交互时，CU可以对UE进行定位，以确定UE的位置。或者UE向CU的交互信息中包括有UE的位置。
CU基于UE的位置可以确定UE是否当前所在的第一小区移动至任意的第二小区。若检测到UE从第一小区移动至第二小区时，需要进行gNB-DU的内切换，此时，CU向各个第一DU发送第一参数。第一参数可以是第一DU新的UL GTP TEID。
步骤S403，接收各个第一DU并行发送的第二参数，并与各个第一DU重新建立连接。
各个第一DU在接收到第一参数后，各个第一DU会向CU并行发送第二参数。第二参数可以是各个第一DU提供的新的DL GTP TEID。
具体的，各个第一DU在接收到第一参数后，也即接收到新的UL GTP TEID后，各个第一DU采用先前的UL GTP TEID向CU发送UL PDC PPDU，直至CU与第一DU重新建立RLC，第一DU与CU建立RLC后，第一DU采用新的UL GTP TEID向CU发送数据。
CU在接收到第二参数后，也即接收到各个第一DU提供的新的UL GTP TEID后，采用各个第一DU之前提供的DL GTP TEID，向各个第一 DU发送DL PDCP PDU，直至CU执行PDCP重建或者PDCP数据的恢复，CU再采用第一DU新的DL GTP TEID向第一DU发送数据。
由上可知，第一参数是用于第一DU向重新建立连接后的CU发送数据，而第二参数是用于CU向重新建立连接后的第一DU发送数据。
需要说明的是，为了便于描述，图7所示的步骤S401-步骤S403位于步骤S102之后，但步骤S401-步骤S403可位于步骤S101以及步骤S102的任意位置。
在本实施例中，若UE从第一小区移动至第二小区，则CU向各个第一DU分配对应的第一参数，使得各个第一DU在第二小区基于第一参数向CU发送数据，各个第一DU也会并行向CU发送第二参数，使得CU基于第二参数向第二小区的各个第一DU发送数据。
参照图8，图8为本公开还一实施例提供的交互方法的流程示意图，基于图4-图6任一所示的实施例，交互方法还包括：
步骤S501，若UE从接入的多个第一DU切换至多个第三DU，对各个第三DU分配第三参数。
步骤S502，向各个第三DU并行发送第三DU对应的第三参数。
在本实施例中，多个第一DU与CU的交互场景为gNB-DU的内切换。gNB-DU的内切换指的是，NR在进行操作时，UE从接入的多个第一DU切换至多个第三DU，且各个第一DU与各个第三DU位于同一小区。第三DU是UE响应NR的操作待接入的DU。此时，CU会向各个第三DU分配第三参数。第三参数可以是CU为各个第三DU分配的UL GTP TEID。
步骤S503，接收各个第三DU并行发送的第四参数，并与各个第一DU重新建立连接。
各个第三DU在接收到第三参数后，各个第三DU会向CU并行发送第四参数。第四参数可以是各个第三DU提供的新的DL GTP TEID。
具体的，各个第三DU在接收到第三参数后，也即接收到新的UL GTP TEID后，各个第三DU采用先前的UL GTP TEID向CU发送UL PDC PPDU，直至CU与第三DU建立RLC，第三DU与CU建立RLC后，第三DU采用新的UL GTP TEID向CU发送数据。
CU在接收到第四参数后，也即接收到各个第三DU提供的新的UL GTP TEID后，采用各个第三DU之前提供的DL GTP TEID，向各个第三 DU发送DL PDCP PDU，直至CU执行PDCP重建或者PDCP数据的恢复，CU再采用第三DU新的DL GTP TEID向第三DU发送数据。
由上可知，第三参数是用于第一DU向重新建立连接后的CU发送数据，而第四参数是用于CU向重新建立连接后的第一DU发送数据。
需要说明的是，为了便于描述，图7所示的步骤S501-步骤S503位于步骤S102之后，但步骤S501-步骤S503可位于步骤S101以及步骤S102的任意位置。
在本实施例中，若UE从第一DU切换至第三DU，则CU向各个第三DU分配对应的第三参数，使得各个第三DU基于第三参数向CU发送数据，各个第三DU也会并行向CU发送第四参数，使得CU基于第四参数向各个第三DU发送数据。
参照图9，图9是本公开实施例提供的交互方法的流程示意图，应用于分布单元实体，交互方法包括：
步骤S601，接收用户设备UE发送的指示消息，指示消息用于指示UE接入的多个分布单元实体并行向集中单元实体CU发送信息。
步骤S602，根据指示消息向CU发送第一信息。
在本实施例中，集中单元实体指的是CU的实体设备，分布单元实体则指的是DU的实体设备。
UE在接入多个DU后，可以决定多个DU并行或者串行向CU发送信息。
在一示例中，UE向接入的多个DU发送指示信息，也即DU接收到UE发送的指示信息、若是指示信息是指示多个DU并行向CU发送信息，则在多个DU在需要与CU进行交互时，多个DU并行向CU发送第一信息。
步骤S603，接收CU发送的第二信息。
CU在接收到多个DU并行发送的第一信息后，会统一向各个DU发送第二信息。
在一示例中，若是多个第一DU与CU是在UE的初始接入的场景中进行交互，则第一信息可以是各个第一DU接收到RRC的建立请求后向CU传输的初始的上行无线资源控制信息，而第二信息则是CU向各个第一DU传输的下行无线资源控制信息。初始的上行无线资源控制信息包括有 UE对各个第一DU分配的C-RNTI(临时标识符)以及gNB-DU ID，也即各个第一DU通过第一信息将自身的C-RNTI以及gNB-DU ID发送至CU。CU接收第一信息后，会生成第二信息，第二信息包括CU分配的gNB-CU UE F1AP ID以及CU生成的RRC message。gNB-CU UE F1AP ID指的是CU与UE之间的F1应用协议的标识，RRC message为无线资源控制建立信息。多个第一DU接收到第二信息后，将第二信息中的RRC message发送至UE。
在另一示例中，参照图2中的6、9、11、13、14以及17的步骤涉及的是UE与AMF之间信令的交互，且多个第一DU与CU起到的作用是将信令进行封装，然后将封装的信令透传至AMF或者UE，并不涉及CU与多个第一DU之间的信令交互。第一信息是UE通过多个第一DU向CU发送的信令时，则第二信息是AMF通过CU向多个第一DU返回的信令，且各个第一DU会将接收的AMF发送的信令发送至UE。
在又一示例中，UE的初始接入会涉及到RRC重配置，也即第二信息是CU向多个第一DU发送的RRC重配置消息，各个第一DU向CU发送RRC重配置，并且UE在完成RRC重配置后，UE会向各个第一DU发送RRC重配置完成消息，各个第一DU则会向CU并行发送RRC重配置完成消息，也即CU接收各个第一DU并行发送的RRC重配置完成消息。
此外，多个DU与CU的交互场景还包括：多个DU通过CU进行交互，gNB-DU的间移动以及gNB-DU的内切换。在这些场景中，多个DU会并行向CU发送消息，CU接收到各个消息后，则会并行向各个DU发送对应的消息，交互场景各个DU并行向CU发送的消息以及CU向多个DU并行发送的消息，具体参照图3-图8所示的实施例，在此不再进行赘述。
在本实施例中，DU接收UE发送的指示消息，基于指示消息，该DU与UE接入的其他DU并行向CU发送第一信息，CU向UE接入的各个DU并行发送第二信息。在多个DU与CU的交互场景中，CU是并行的与多个DU进行交互，节省了多个DU与CU进行交互的时间，缩短了多个DU与CU的交互场景的总交互时间，进而提高了多个DU与CU的交互场景达成目的的效率。
参照图10，图10是本公开实施例提供的交互方法的流程示意图，应 用于用户设备，交互方法包括：
步骤S701，向用户设备接入的多个分布单元实体DU发送指示消息，指示消息用于指示多个DU向集中单元实体CU并行发送信息。
在本实施例中，集中单元实体指的是CU的实体设备，分布单元实体则指的是DU的实体设备。
UE会选择多个DU进行接入。在一示例中，UE会基于自身所需的传输带宽、数据传输速率等参数来选择接入DU的数量。若UE要求传输带宽大、数据传输速率高，则UE选择较多数量的DU进行接入。若UE要求传输带宽小、数据传输速率低，UE选择较少数量的DU进行接入。
UE接入多个DU后，多个DU与CU存在交互场景。在一示例中，UE与CU之间需要通过DU进行数据交互，则多个DU需要与CU进行数据交互。在另一示例中，UE需要更改接入的DU，则UE当前接入的DU需要与CU进行数据交互，且UE待接入的多个DU也需要与CU进行交互。此外，在gNB-DU内切换，以及各个DU之间的交互，也需要多个DU与CU进行数据交互。
在多个DU与CU进行数据交互的场景中，UE通过向各个DU发送指示信息，使得多个DU与CU的交互过程中，多个DU并行向CU发送消息，CU再并行向多个CU反馈对应的消息。多个DU与CU之间的交互流程以及涉及的并行发送的消息参照图4-图8所示的实施例，在此不再进行赘述。
在本实施例中，UE向接入的多个DU发送指示消息，使得多个DU并行向CU发送信息，且CU并行向多个DU发送消息。在多个DU与CU的交互场景中，CU是并行的与多个DU进行交互，节省了多个DU与CU进行交互的时间，缩短了多个DU与CU的交互场景的总交互时间，进而提高了多个DU与CU的交互场景达成目的的效率。
本公开实施例提供了一种集中单元实体，如图11所示，定位管理实体可以包括收发机1101、处理器1102和存储器1103。
收发机1101，用于在处理器1102的控制下接收和发送数据。
其中，在图11中，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1102代表的一个或多个处理器和存储器1103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***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。收发机1101可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器1102负责管理总线架构和通常的处理，存储器1103可以存储处理器1102在执行操作时所使用的数据。
处理器1102可以是中央处理器(central processing unit，CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
处理器1102通过调用存储器1103存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的有关集中单元实体的任一方法。处理器与存储器也可以物理上分开布置。
具体的，处理器1102在执行存储器1103存储的计算机程序时实现如下操作：
接收用户设备UE接入的多个第一分布单元实体DU并行发送的第一信息；
并行向各个第一DU发送第一DU对应的第二信息。
作为一种可选的实施方式，处理器1102还用于执行以下操作：
确定待发送至第一DU的多个第一信息；
根据待发送至第一DU的多个第一信息确定第一DU的第二信息。
作为一种可选的实施方式，处理器1102还用于执行以下操作：
接收各个第一DU并行发送的响应消息。
作为一种可选的实施方式，处理器1102还用于执行以下操作：
接收各个第一DU并行发送的RRC重配置完成消息。
作为一种可选的实施方式，处理器1102还用于执行以下操作：
接收各个第一DU并行发送的UE的上下文修改响应消息；
向多个第二DU并行发送UE的上下文建立请求，第二DU是UE待接入的DU；
接收各个第二DU并行发送UE的上下文建立响应消息；
并行向各个第一DU发送无线资源控制RRC重配置消息。
作为一种可选的实施方式，处理器1102还用于执行以下操作：
接收各个第二DU并行发送的RRC重配置完成消息；
并行向各个第一DU发送上下文释放消息；
接收各个第一DU并行发送的上下文释放完成消息。
作为一种可选的实施方式，处理器1102还用于执行以下操作：
接收多个第二DU并行发送的交互消息；
向各个第二DU并行发送第二DU对应的多个交互消息；
接收各个第二DU并行发送的响应消息。
作为一种可选的实施方式，处理器1102还用于执行以下操作：
若UE从第一小区移动至第二小区，对各个第一DU分配对应的第一参数；
向各个第一DU并行发送第一DU对应的第一参数；
接收各个第一DU并行发送的第二参数，并与各个第一DU重新建立连接；
其中，第一参数用于第一DU向重新建立连接后的集中单元实体发送数据，第二参数用于集中单元实体向重新建立连接后的第一DU发送数据。
作为一种可选的实施方式，处理器1102还用于执行以下操作：
若UE从接入的多个第一DU切换至多个第三DU，对各个第三DU分配第三参数，其中，各个第三DU与各个第一DU位于同一小区；
向各个第三DU并行发送第三DU对应的第三参数；
接收各个第三DU并行发送的第四参数，并与各个第一DU重新建立连接；
其中，第三参数用于第一DU向重新建立连接后的集中单元实体发送数据，第四参数用于集中单元实体向重新建立连接后的第一DU发送数据。
在此需要说明的是，本公开提供的上述集中单元实体，能够实现上述交互方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
本公开实施例提供了一种集中单元实体，如图12所示，集中单元实体包括：
第一接收单元1201，用于用户设备UE接入的多个第一分布单元实体 DU并行发送的第一信息；
第一发送单元1202，用于并行向各个第一DU发送第一DU对应的第二信息。
作为一种可选的实施方式，集中单元实体还包括：
确定单元，用于确定待发送至第一DU的多个第一信息；
确定单元，用于根据待发送至第一DU的多个第一信息确定第一DU的第二信息。
作为一种可选的实施方式，集中单元实体还包括：
第一接收单元1201，用于接收各个第一DU并行发送的响应消息。
作为一种可选的实施方式，集中单元实体还包括：
第一接收单元1201，用于接收各个第一DU并行发送的RRC重配置完成消息。
作为一种可选的实施方式，集中单元实体还包括：
第一接收单元1201，用于接收各个第一DU并行发送的UE的上下文修改响应消息；
第一发送单元1202，用于向多个第二DU并行发送UE的上下文建立请求，第二DU是UE待接入的DU；
第一接收单元1201，用于接收各个第二DU并行发送UE的上下文建立响应消息；
第一发送单元1202，用于并行向各个第一DU发送无线资源控制RRC重配置消息。
作为一种可选的实施方式，集中单元实体还包括：
第一接收单元1201，用于接收各个第二DU，并行发送的RRC重配置完成消息。
第一发送单元1202，用于并行向各个第一DU发送上下文释放消息；
第一接收单元1201，用于接收各个第一DU并行发送的上下文释放完成消息。
作为一种可选的实施方式，集中单元实体还包括：
第一接收单元1201，用于接收多个第二DU并行发送的交互消息；
第一发送单元1202，用于向各个第二DU并行发送第二DU对应的多个交互消息；
第一接收单元1201，用于接收各个第二DU并行发送的响应消息。
作为一种可选的实施方式，集中单元实体还包括：
分配单元，用于若UE从第一小区移动至第二小区，对各个第一DU分配对应的第一参数；
第一发送单元1202，用于向各个第一DU并行发送第一DU对应的第一参数；
第一接收单元1201，用于接收各个第一DU并行发送的第二参数，并与各个第一DU重新建立连接，其中，第一参数用于第一DU向重新建立连接后的集中单元实体发送数据，第二参数用于集中单元实体向重新建立连接后的第一DU发送数据。
作为一种可选的实施方式，集中单元实体还包括：
分配单元，用于若UE从接入的多个第一DU切换至多个第三DU，对各个第三DU分配第三参数；
第一发送单元1202，用于向各个第三DU并行发送第三DU对应的第三参数；
第一接收单元1201，用于接收各个第三DU并行发送的第四参数，并与各个第一DU重新建立连接，其中，第三参数用于第一DU向重新建立连接后的集中单元实体发送数据，第四参数用于集中单元实体向重新建立连接后的第一DU发送数据。
在此需要说明的是，本公开提供的上集中单元实体，能够实现上述交互方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述
本公开实施例提供了一种分布单元实体，如图13所示，分布单元实体可以包括收发机1301、处理器1302和存储器1303。
收发机1301，用于在处理器1302的控制下接收和发送数据。
其中，在图13中，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1302代表的一个或多个处理器和存储器1303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***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。收发机1301可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他 装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器1302负责管理总线架构和通常的处理，存储器1303可以存储处理器1302在执行操作时所使用的数据。
处理器1302可以是中央处理器(central processing unit，CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
处理器1302通过调用存储器1303存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的有关定位参***的任一方法。处理器与存储器也可以物理上分开布置。
具体的，处理器1302在执行存储器1303存储的计算机程序时实现如下操作：
接收用户设备UE发送的指示消息用于指示UE接入的多个分布单元实体并行向集中单元实体CU发送信息；
根据指示消息，向CU发送第一信息；
接收CU发送的第二信息。
在此需要说明的是，本公开提供的上述分布单元实体，能够实现上述交互方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
本公开实施例提供了一种分布单元实体，如图14所示，分布单元实体包括：
第二接收单元1401，用于接收用户设备UE发送的指示消息，指示消息用于指示UE接入的多个分布单元实体并行向集中单元实体CU发送信息；
第二发送单元1402，用于根据指示消息向CU发送第一信息。
第二接收单元1401，还用于接收CU发送的第二信息。
在此需要说明的是，本公开提供的分布单元实体，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
本公开实施例提供了一种用户设备，如图15所示，用户设备可以包括 收发机1501、处理器1502和存储器1503。
收发机1501，用于在处理器1502的控制下接收和发送数据。
其中，在图15中，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1502代表的一个或多个处理器和存储器1503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***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。收发机1501可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器1502负责管理总线架构和通常的处理，存储器1503可以存储处理器1502在执行操作时所使用的数据。
处理器1502可以是中央处理器(central processing unit，CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
处理器1502通过调用存储器1503存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的有关用户设备的任一方法。处理器与存储器也可以物理上分开布置。
具体的，处理器1502在执行存储器1503存储的计算机程序时实现如下操作：
向用户设备接入的多个分布单元实体DU发送指示消息，指示消息用于指示多个DU向集中单元实体CU并行发送信息。
在此需要说明的是，本公开提供的上述用户设备，能够实现上述交互方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
本公开实施例提供了一种用户设备，如图16所示，用户设备包括：
第三发送单元1601，用于向用户设备接入的多个分布单元实体DU发送指示消息，指示消息用于指示多个DU向集中单元实体CU并行发送信息。
在此需要说明的是，本公开提供的用户设备，能够实现上述方法实施 例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
需要说明的是，本公开实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本公开各个实施例方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本公开实施例提供了一种处理器可读存储介质，处理器可读存储介质存储有计算机程序，计算机程序用于使处理器执行本公开实施例提供的有关集中单元实体、分布单元实体或用户设备的任一方法。使处理器能够实现上述方法实施例中集中单元实体、分布单元实体或用户设备所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
处理器可读存储介质可以是处理器能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
本公开实施例提供了一种包含指令的计算机程序产品，当指令在计算机上运行时，使得计算机执行如上述方法实施例中集中单元实体、分布单元实体或用户设备所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
本领域内的技术人员应明白，本公开的实施例可提供为方法、定位管理实体、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、定位管理实体、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中，使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (18)

  1. 一种交互方法，应用于集中单元实体，所述交互方法包括：
    接收用户设备UE接入的多个第一分布单元实体DU并行发送的第一信息；
    并行向各个所述第一DU发送所述第一DU对应的第二信息。
  2. 根据权利要求1所述的方法，其中，所述并行向各个第一DU发送所述第一DU对应的第二信息之前，还包括：
    确定待发送至所述第一DU的多个第一信息；
    根据待发送至所述第一DU的多个第一信息确定所述第一DU的第二信息。
  3. 根据权利要求2所述的方法，其中，所述并行向各个所述第一DU发送所述第一DU对应的第二信息，还包括：
    接收各个所述第一DU并行发送的响应消息。
  4. 根据权利要求1所述的方法，其中，所述第二信息是RRC重配置消息，所述并行向各个所述第一DU发送所述第一DU对应的第二信息之后，还包括：
    接收各个所述第一DU并行发送的RRC重配置完成消息。
  5. 根据权利要求1所述的方法，其中，所述多个第一DU是所述UE当前接入的DU，所述并行向各个第一DU发送所述第一DU对应的第二信息，还包括：
    接收各个所述第一DU并行发送的所述UE的上下文修改响应消息；
    向多个第二DU并行发送所述UE的上下文建立请求，所述第二DU是所述UE待接入的DU；
    接收各个所述第二DU并行发送所述UE的上下文建立响应消息；
    并行向各个所述第一DU发送无线资源控制RRC重配置消息。
  6. 根据权利要求5所述的方法，其中，所述并行向各个所述第一DU发送无线资源控制RRC重配置消息之后，还包括：
    接收各个所述第二DU并行发送的RRC重配置完成消息；
    并行向各个所述第一DU发送上下文释放消息；
    接收各个所述第一DU并行发送的上下文释放完成消息。
  7. 根据权利要求6所述的方法，其中，所述接收各个所述第二DU并行发送的RRC重配置完成消息之后，还包括：
    接收多个所述第二DU并行发送的交互消息；
    向各个所述第二DU并行发送所述第二DU对应的所述多个交互消息；
    接收各个所述第二DU并行发送的响应消息。
  8. 根据权利要求1所述的方法，其中，还包括：
    若所述UE从第一小区移动至第二小区，对各个所述第一DU分配对应的第一参数；
    向各个第一DU并行发送所述第一DU对应的第一参数；
    接收各个所述第一DU并行发送的第二参数，并与各个所述第一DU重新建立连接；
    其中，所述第一参数用于所述第一DU向重新建立连接后的所述集中单元实体发送数据，所述第二参数用于所述集中单元实体向重新建立连接后的所述第一DU发送数据。
  9. 根据权利要求1所述的方法，其中，还包括：
    若所述UE从接入的多个第一DU切换至多个第三DU，对各个所述第三DU分配第三参数，其中，各个所述第三DU与各个所述第一DU位于同一小区；
    向各个所述第三DU并行发送所述第三DU对应的第三参数；
    接收各个所述第三DU并行发送的第四参数，并与各个所述第一DU重新建立连接；
    其中，所述第三参数用于所述第一DU向重新建立连接后的所述集中单元实体发送数据，所述第四参数用于所述集中单元实体向重新建立连接 后的所述第一DU发送数据。
  10. 一种交互方法，应用于分布单元实体，所述交互方法包括：
    接收用户设备UE发送的指示消息，所述指示消息用于指示所述UE接入的多个分布单元实体并行向集中单元实体CU发送信息；
    根据所述指示消息向所述CU发送第一信息；
    接收所述CU发送的第二信息。
  11. 一种交互方法，应用于用户设备，所述交互方法包括：
    向所述用户设备接入的多个分布单元实体DU发送指示消息，所述指示消息用于指示所述多个DU向集中单元实体CU并行发送信息。
  12. 一种集中单元实体，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    接收用户设备UE接入的多个第一分布单元实体DU并行发送的第一信息；
    并行向各个所述第一DU发送所述第一DU对应的第二信息。
  13. 一种集中单元实体，包括：
    第一接收单元，用于接收用户设备UE接入的多个第一分布单元实体DU并行发送的第一信息；
    第一发送单元，用于并行向各个所述第一DU发送所述第一DU对应的第二信息。
  14. 一种分布单元实体，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    接收用户设备UE发送的指示消息，所述指示消息用于指示所述UE接入的多个分布单元实体并行向集中单元实体CU发送信息；
    根据所述指示消息向所述CU发送第一信息；
    接收所述CU发送的第二信息。
  15. 一种分布单元实体，包括：
    第二接收单元，用于接收用户设备UE发送的指示消息，所述指示消息用于指示所述UE接入的多个分布单元实体并行向集中单元实体CU发送信息；
    第二发送单元，用于根据所述指示消息向所述CU发送第一信息；
    所述第二接收单元，还用于接收所述CU发送的第二信息。
  16. 一种用户设备，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    向所述用户设备接入的多个分布单元实体DU发送指示消息，所述指示消息用于指示所述多个DU向集中单元实体CU并行发送信息。
  17. 一种用户设备，包括：
    第三发送单元，用于向所述用户设备接入的多个分布单元实体DU发送指示消息，所述指示消息用于指示所述多个DU向集中单元实体CU并行发送信息。
  18. 一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行权利要求1至11任一项所述的方法。
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