WO2019076182A1 - 连接处理方法和设备 - Google Patents

连接处理方法和设备 Download PDF

Info

Publication number
WO2019076182A1
WO2019076182A1 PCT/CN2018/107213 CN2018107213W WO2019076182A1 WO 2019076182 A1 WO2019076182 A1 WO 2019076182A1 CN 2018107213 W CN2018107213 W CN 2018107213W WO 2019076182 A1 WO2019076182 A1 WO 2019076182A1
Authority
WO
WIPO (PCT)
Prior art keywords
tnl
signaling
connection
binding relationship
processor
Prior art date
Application number
PCT/CN2018/107213
Other languages
English (en)
French (fr)
Inventor
刘亮
李刚
杨光
刘洋
Original Assignee
中国移动通信有限公司研究院
中国移动通信集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国移动通信有限公司研究院, 中国移动通信集团有限公司 filed Critical 中国移动通信有限公司研究院
Priority to EP18867985.6A priority Critical patent/EP3700291A4/en
Priority to US16/757,594 priority patent/US11497071B2/en
Publication of WO2019076182A1 publication Critical patent/WO2019076182A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a connection processing method and device in a Central Unit (CU)-Distributed Unit (DU) architecture.
  • CU Central Unit
  • DU Distributed Unit
  • the access network logical node is composed of a base station (NodeB, NB) and a radio network controller (RNC), and the fourth generation mobile communication (4rd generation, 4G) logic
  • the architecture design is flatter and only includes the Evolved Node B (eNB).
  • the 3rd Generation Partnership Project (3GPP) Radio Access Network (RAN) plenary session launched the fifth-generation mobile communication (5rd Generation, 5G) scenario and needs research project.
  • the 5G scenario and requirements research report passed by the 71 RAN Plenary clearly pointed out the requirements for the 5G access network architecture.
  • the most typical requirement different from the 4G access network is that the access network supports distributed remote units (Remote Units). RU) and the logical function division of the central unit, and support the protocol stack function to migrate between the CU and the DU.
  • Remote Units distributed remote units
  • the CU-DU two-level architecture of the access network has the advantages of achieving inter-cell cooperation gain and centralized load management; efficiently implementing centralized control under dense networking, such as multiple connections and dense switching;
  • the Network Function Virtualization (NFV)/Software Defined Network (SDN) is used to meet the deployment requirements of certain 5G scenarios of operators.
  • the CU is a centralized node that can control and coordinate multiple cells, including protocol stack high-level control and data functions, and may also include some baseband processing functions.
  • the DU is a distributed unit that implements the Remote Radio Head (RRH) function and the remaining baseband processing functions.
  • the CU and the DU are connected through a front-end interface.
  • the function division between CU-DUs has multiple splitting schemes. The applicable scenarios and performance gains of different splitting schemes are different. At the same time, the parameters such as bandwidth, transmission delay, and synchronization of the preamble interface are also very different.
  • a standardized Packet Data Convergence Protocol (PDCP)-Radio Link Control (RLC) splitting scheme is adopted, and an interface between CU-DUs is defined as an F1 interface.
  • the F1 interface protocol stack is divided into the Transport Network Layer (TNL) and the Radio Network Layer (RNL).
  • the F1-C uses the Stream Control Transmission Protocol (SCTP).
  • SCTP Stream Control Transmission Protocol
  • F1-U uses GTP-U (refers to the User Packet General Packet Radio Service (GPRS) tunneling protocol) to ensure data transmission, and a pair of CU-DUs of the F1 interface Only one TNL connection is established between them, as shown in Figures 2a and 2b.
  • GPRS User Packet General Packet Radio Service
  • the future CU will adopt centralized deployment, such as the location of the core aggregation machine room, and the CU will adopt the cloud platform and virtualization architecture.
  • the function of the CU will be presented in the virtual data machine in the edge data center, according to the actual resource requirements.
  • Capacity scaling such as instantiation, generates a new CU instance (CU Instance) on the cloud platform according to the number of users and services, and migrates part of the load from one CU to another, or releases with the number of users and services.
  • these CU instances may have different IP addresses, see Figure 3.
  • centralized CU may bring greater risk of network downtime. If a single TNL connection is established between CU-DUs, if the CU or transmission network fails, it will affect a large range. Network reachability. Therefore, establishing a TNL connection between CU-DUs cannot meet the actual deployment requirements.
  • the 5G CU-DU architecture needs to meet multiple service requirements at the same time. These service requirements have different requirements for end-to-end delay. For example, enhanced mobile broadband (eMBB) has higher requirements for air interface throughput, but delay requirements. It is not too high, but the low-latency and high-reliability services have high delay requirements. Therefore, different services or different UEs of the same user equipment (UE) may need to access CUs deployed in different locations, as shown in FIG. A TNL connection between CU-DUs cannot meet this requirement.
  • eMBB enhanced mobile broadband
  • the embodiments of the present disclosure provide a connection processing method and device, which solves the problem that a TNL connection between CU-DUs cannot meet actual deployment requirements.
  • connection processing method for applying to a distribution unit DU, including:
  • the establishing, according to the one TNL address, multiple TNL connections between the DU and the CU including:
  • the receiving, according to the first TNL connection, receiving the second TNL address includes:
  • the method further includes:
  • the update request message that updates the TNL connection of the DU includes:
  • the CU configuration upgrade includes an update request message indicating that the TNL connection of the DU is updated.
  • the second aspect also provides a connection processing method applied to the CU, including:
  • a plurality of TNL connections between the CU and the DU are established based on one or more TNL addresses.
  • the establishing, according to one or more TNL addresses, multiple TNL connections between the CU and the DU including:
  • the sending, according to the first TNL connection, the second TNL address to the DU includes:
  • the method further includes:
  • An update request message for updating the TNL connection of the DU is sent to the DU.
  • the sending by the DU, an update request message that updates the TNL connection of the DU, including:
  • connection processing method is also provided, which is applied to the distribution unit DU, including:
  • the signaling that the CU sends the CU to update the F1 AP signaling and the TNL binding relationship includes:
  • the first signaling sent by the CU is received, where the first signaling includes an identifier for updating the F1 AP signaling and the TNL binding relationship.
  • the signaling that the CU sends the CU to update the F1 AP signaling and the TNL binding relationship includes:
  • the second signaling that is sent by the CU and used to update the F1 AP signaling and the TNL binding relationship is received.
  • the signaling that the CU sends the CU to update the F1 AP signaling and the TNL binding relationship includes:
  • the signaling that the CU sends the CU to release the F1 AP signaling and the TNL binding relationship includes:
  • the fifth signaling includes a message that releases the binding relationship between the F1 AP signaling and the fifth TNL connection.
  • the UE indicates that the F1 AP signaling bound on the fifth TNL connection is released.
  • the DU If the DU is notified by the UE related signaling, it indicates that the F1 AP signaling bound by the UE on the fifth TNL connection is released.
  • the receiving, by the CU, the signaling that the CU sends the F1 application layer AP signaling and the TNL binding relationship including:
  • a connection processing method is also provided, which is applied to a CU connected to the DU TNL, including:
  • the notifying the CU of the DU to update the F1 AP signaling and the TNL binding relationship including:
  • the DU Sending, to the DU, the first signaling, where the first signaling includes an identifier for updating the F1 AP signaling and the TNL binding relationship;
  • the notifying the CU of the DU to update the F1 AP signaling and the TNL binding relationship including:
  • the notifying the CU of the DU to release the F1 AP signaling and the TNL binding relationship including:
  • the CU is notified by the signaling that the CU binds the F1 AP signaling and the TNL binding relationship.
  • the notifying the CU of the DU to release the F1 AP signaling and the TNL binding relationship including:
  • a distribution unit DU including a first processor and a first transceiver;
  • the first processor is configured to: determine one or more TNL addresses of the CU; and establish a plurality of TNL connections between the DU and the CU according to the one or more TNL addresses.
  • a DU including: a second processor and a second transceiver;
  • the second transceiver is configured to: receive, by the CU, signaling that the CU updates or releases the F1 application layer AP signaling and the TNL binding relationship.
  • a CU including: a third processor and a third transceiver;
  • the third transceiver is configured to: notify the DU that the CU updates or releases the F1 AP signaling and the TNL binding relationship.
  • a CU including: a fourth processor and a fourth transceiver;
  • the fourth processor is configured to: establish multiple TNL connections between the CU and the DU according to one or more TNL addresses.
  • a DU comprising: a processor, a memory, and a computer program stored on the memory and operable on the processor, the computer program being implemented by the processor.
  • a CU comprising: a processor, a memory, and a computer program stored on the memory and operable on the processor, the computer program being implemented by the processor.
  • a computer readable storage medium on which the computer program is stored, the computer program being implemented by the processor to implement the first aspect or the second aspect or The steps of the connection processing method of the third aspect or the fourth aspect.
  • multiple TNL connections are established between the CU-DUs to meet the deployment requirements of the future 5G CUs in the cloud platform virtualization environment, and the CU devices that the users select different TNL addresses according to service requirements.
  • Figure 1 is a schematic diagram of a CU-DU architecture and interface
  • FIGS. 2a and 2b are schematic diagrams of an F1 interface protocol stack
  • Figure 3 is a schematic diagram of a centralized deployment of a CU
  • FIG. 4 is a schematic diagram of a CU adopting a distributed deployment
  • FIG. 5 is a flowchart of a connection processing method according to an embodiment of the present disclosure.
  • FIG. 6 is a second flowchart of a connection processing method according to an embodiment of the present disclosure.
  • FIG. 7 is a flowchart of establishing and managing a TNL connection according to an embodiment of the present disclosure
  • FIG. 8 is a third flowchart of a connection processing method according to an embodiment of the present disclosure.
  • FIG. 9 is a second flowchart of establishing and managing a TNL connection according to an embodiment of the present disclosure.
  • FIG. 10 is a fourth flowchart of a connection processing method according to an embodiment of the present disclosure.
  • FIG. 11 is a fifth flowchart of a connection processing method according to an embodiment of the present disclosure.
  • FIG. 12 is a sixth flowchart of a connection processing method according to an embodiment of the present disclosure.
  • FIG. 13 is a seventh flowchart of a connection processing method according to an embodiment of the present disclosure.
  • FIG. 14 is a flowchart of a connection processing method according to an embodiment of the present disclosure.
  • connection processing method 15 is a flowchart of a connection processing method according to an embodiment of the present disclosure.
  • connection processing method 16 is a flowchart of a connection processing method according to an embodiment of the present disclosure.
  • Figure 17 is a structural diagram of a DU of an embodiment of the present disclosure.
  • Figure 18 is a structural diagram of a DU of an embodiment of the present disclosure.
  • FIG. 19 is a structural diagram of a CU according to an embodiment of the present disclosure.
  • FIG. 20 is a second structural diagram of a DU according to an embodiment of the present disclosure.
  • 21 is a second structural diagram of a CU according to an embodiment of the present disclosure.
  • FIG. 22 is a flowchart of a connection processing method according to an embodiment of the present disclosure.
  • FIG. 23 is a third structural diagram of a CU according to an embodiment of the present disclosure.
  • connection processing method of an embodiment is shown.
  • the execution body of the method is a DU.
  • the specific steps include:
  • Step 501 Determine one or more TNL addresses of the CU.
  • the above CU may be a CU logical unit, which may include multiple CU entities.
  • one or more TNL addresses of a CU are configured by an Operation, Administration, and Maintenance (OAM) entity.
  • OAM Operation, Administration, and Maintenance
  • Step 502 Establish multiple TNL connections between the DU and the CU according to one or more TNL addresses.
  • connection processing method of another embodiment is shown.
  • the execution body of the method is a DU.
  • the specific steps include:
  • Step 601 Determine a TNL address of the CU.
  • the above CU may be a CU instance (or referred to as a CU entity).
  • a TNL address of the CU is configured by the OAM.
  • Step 602 Establish a DU first TNL connection according to a TNL address.
  • Step 603 Receive a second TNL address according to the first TNL connection.
  • the second TNL address may include a TNL address of the second CU instance and the third CU instance.
  • F1 interface setup response message F1 SETUP RESPONSE message
  • the F1 interface setup response message includes a second TNL address
  • receiving a CU configuration upgrade message CU CONFIGURATION UPDATE message
  • the CU configuration upgrade message includes Two TNL addresses.
  • Step 604 Establish a second TNL connection according to the second TNL address.
  • the second TNL address includes the TNL address of the second CU instance and the third CU instance
  • a TNL connection with the second CU instance and the third CU instance is established according to the second TNL address.
  • Step 701 The OAM configures a TNL address of the CU instance 1 (CU Instance 1) for the DU;
  • Step 702 The DU establishes a TNL connection with the CU Instance 1.
  • Step 703 The DU initiates an F1 SETUP REQUEST message on the TNL connection.
  • Step 704 CU Instance 1 sends a TNL connection list to the DU, where the TNL connection list includes TNL addresses of CU Instance 2 and CU Instance 3;
  • the TNL connection list may also be sent to the DU through a CU CONFIGURATION UPDATE message;
  • Step 705 The DU establishes a TNL connection with CU Instance 2 and CU Instance 3.
  • connection processing method a connection processing method according to still another embodiment.
  • the execution body of the method is a DU.
  • the specific steps include:
  • Step 801 Determine multiple TNL addresses of the CU.
  • the above CU may be a logical CU including a plurality of CU instances, each CU instance corresponding to one TNL address.
  • Step 802 Establish multiple TNL connections between the DU and the CU according to multiple TNL addresses.
  • Step 803 Receive an update request message that updates a TNL connection of the DU.
  • receiving an F1 interface setup response message where the F1 interface setup response message includes an update request message indicating that the TNL connection of the DU is updated; or receiving a CU configuration upgrade message, where the CU configuration upgrade includes a TNL connection indicating the DU Update request message for update.
  • Step 804 Update the TNL connection of the DU according to the update request message.
  • Step 901 The OAM configures a TNL address of the CU Instance 1, the CU Instance 2, and the CU Instance 3 for the DU.
  • Step 902 The DU establishes a TNL connection with the CU Instance 1, the CU Instance 2, and the CU Instance 3.
  • the TNL connection establishment can be rejected directly at the SCTP layer.
  • Step 903 The DU selects a TNL connection of the CU Instance 1 to initiate an F1SETUP REQUEST message on the established TNL connection.
  • Step 904 CU Instance 1 notifies the DU to update the TNL connection list
  • the DU can be notified by the F1 SETUP RESPONSE message or by the CU CONFIGURATION UPDATE message to update the TNL connection list;
  • Step 905 The DU updates the TNL connection.
  • TNL connections are established between CU-DUs to meet the deployment requirements of the future 5G CUs in the cloud platform virtualization environment, and the CU devices that users select different TNL addresses according to service requirements.
  • connection processing method a connection processing method according to still another embodiment.
  • the execution body of the method is a DU.
  • the specific steps are as follows:
  • Step 1001 Receive signaling that the CU sends or updates the F1 AP signaling and the TNL binding relationship sent by the CU.
  • the F1 AP signaling refers to signaling that is transmitted by the CU-DU through the F1-AP.
  • the F1 AP signaling includes: UE-related signaling and UE-unrelated signaling, and the CU may change or update the F1.
  • the UE related signaling and the UE unrelated signaling may be transmitted using different TNL connections.
  • the DU can learn that the CU changes or updates the F1 AP and TNL binding relationship.
  • connection processing method a connection processing method according to still another embodiment.
  • the execution body of the method is a CU connected to the DU TNL.
  • the specific steps are as follows:
  • Step 1101 Inform the DU that the CU updates or releases the F1 AP signaling and the TNL binding relationship.
  • the F1 AP signaling refers to signaling that is transmitted by the CU-DU through the F1-AP.
  • the F1 AP signaling includes: UE-related signaling and UE-unrelated signaling, and the CU may change or update the F1.
  • the UE related signaling and the UE unrelated signaling may be transmitted using different TNL connections.
  • connection processing method according to still another embodiment is shown. The specific steps are as follows:
  • Step 1201 The CU sends a first signaling to the DU, where the first signaling includes an identifier for updating or changing the binding relationship between the F1 AP signaling and the TNL;
  • the first signaling may be an F1 AP signaling in the related art, that is, an identifier for updating the F1 AP signaling and the TNL binding relationship is added to the F1 AP signaling in the related art.
  • Step 1202 The DU receives the first signaling sent by the CU.
  • the DU can learn that the CU updates the F1 AP signaling and the TNL binding relationship by using the first signaling.
  • the manner of updating the F1 AP signaling and the TNL binding relationship in the embodiment of the present disclosure may be applicable to all F1 AP signaling, or only to UE unrelated signaling or UE related signaling.
  • connection processing method according to still another embodiment is shown. The specific steps are as follows:
  • Step 1301 The CU sends, to the DU, a second signaling specifically used to update the binding relationship between the F1 AP signaling and the TNL.
  • the second signaling is a special F1 AP and TNL binding relationship update signaling, for example, AP-TNL BUNDLING UPDATE signaling (AP-TNL binding update signaling).
  • Step 1302 Receive second signaling sent by the CU.
  • the DU can learn that the CU updates the F1 AP signaling and the TNL binding relationship by using the second signaling.
  • the manner of updating the F1 AP signaling and the TNL binding relationship in the embodiment of the present disclosure may be applicable to all F1 AP signaling, or only to UE unrelated signaling or UE related signaling.
  • connection processing method according to still another embodiment is shown. The specific steps are as follows:
  • Step 1401 The DU sends a third signaling to the CU by using a third TNL connection.
  • Step 1402 The CU receives a third signaling that updates the F1 AP signaling and the TNL binding relationship by using the request sent by the third TNL.
  • Step 1403 The CU sends a fourth signaling that responds to the third signaling to the DU by using the fourth TNL connection.
  • Step 1404 The DU receives the fourth signaling sent by the CU through the fourth TNL connection.
  • the DU can learn that the CU updates the F1 AP signaling and the TNL binding relationship, and updates the binding relationship between the F1 AP signaling and the fourth TNL connection.
  • the DU first sends the request signaling on the TNL1, and the CU decides to change or update the F1 AP signaling and the TNL binding relationship, the CU sends the feedback signaling on the TNL2, and the DU receives the feedback signaling in the TNL2. It is understood that the CU updates the F1 AP signaling and TNL binding relationship.
  • connection processing method according to still another embodiment is shown. The specific steps are as follows:
  • Step 1501 The CU sends the message released by the F1 AP signaling and the TNL binding relationship to the DU through the fifth signaling.
  • Step 1502 The DU receives the fifth signaling sent by the CU.
  • the signaling (for example, all signaling) bound to the fifth TNL connection is released; if the UE is related
  • the signaling of the DU for example, the existing UE context-related signaling addition indication or the use of the new dedicated release signaling, will release the binding relationship of the UE on the fifth TNL connection.
  • connection processing method Referring to FIG. 16, a flow of a connection processing method according to still another embodiment is shown. The specific steps are as follows:
  • Step 1601 The CU sends a sixth signaling to the DU, where the sixth TNL connection is set to NULL.
  • setting the sixth TNL connection to null indicates that the CU releases the F1 AP signaling bound on the sixth TNL connection.
  • Step 1602 Receive sixth signaling sent by the CU.
  • a DU is also provided in the embodiment of the present disclosure.
  • the principle of the DU solution is similar to the connection processing method in the embodiment of the present disclosure. Therefore, the implementation of the DU can refer to the implementation of the method, and the repeated description is not repeated.
  • the DU includes: a first processor 1701 and a first transceiver 1702;
  • the first processor 1701 is configured to: determine one or more TNL addresses of the CU; and establish a plurality of TNL connections between the DU and the CU according to the one or more TNL addresses.
  • the first processor 1701 is further configured to: establish a first TNL connection according to a TNL address;
  • the first transceiver 1702 is configured to: receive, according to the first TNL connection, a second TNL address;
  • the first processor 1701 is further configured to: establish a second TNL connection according to the second TNL address.
  • the first transceiver 1702 is further configured to: receive an F1 interface setup response message according to the first TNL connection, where the F1 interface setup response message includes a second TNL address; or, receive The CU configuration upgrade message includes a second TNL address in the CU configuration upgrade message.
  • the first transceiver 1702 is further configured to: receive an update request message that updates the TNL connection of the DU;
  • the first processor 1701 is further configured to: instruct to update the TNL connection of the DU according to the update request message.
  • the first transceiver 1702 is further configured to: receive an F1 interface setup response message, where the F1 interface setup response message includes an update request message indicating that the TNL connection of the DU is updated; or, receive The CU configures an upgrade message, and the CU configuration upgrade includes an update request message indicating that the TNL connection of the DU is updated.
  • the first processor 1701 is further configured to: determine one or more TNL addresses of the CU configured by the OAM.
  • the DUs in this embodiment can be used to implement the foregoing method embodiments, and the implementation principles and technical effects are similar.
  • a DU is also provided in the embodiment of the present disclosure.
  • the principle of the DU solution is similar to the connection processing method in the embodiment of the present disclosure. Therefore, the implementation of the DU can refer to the implementation of the method, and the repeated description is not repeated.
  • the DU includes: a second processor 1801 and a second transceiver 1802; the second transceiver 1802 is configured to: receive, by the CU, the CU to F1 application layer AP signaling and TNL The signaling of the binding relationship being updated or released.
  • the second transceiver 1802 is further configured to: receive the first signaling, where the first signaling includes an identifier that updates the F1 AP signaling and the TNL binding relationship.
  • the second transceiver 1802 is further configured to: receive the second signaling specifically used to update the F1 AP signaling and the TNL binding relationship.
  • the second transceiver 1802 is further configured to: send the third signaling to the CU by using the third TNL connection;
  • the second transceiver 1802 is further configured to: receive fourth signaling that is sent by the CU by using the fourth TNL connection and that is responsive to the third signaling.
  • the second transceiver 1802 is further configured to: receive the fifth signaling sent by the CU, where the fifth signaling includes binding the F1 AP signaling to the fifth TNL connection. Released message.
  • the second transceiver 1802 is further configured to: receive the sixth signaling sent by the CU, where the sixth TNL connection is set to be empty, and the sixth TNL connection is Setting to null indicates that the CU releases the F1 AP signaling bound on the sixth TNL connection.
  • the DUs in this embodiment can be used to implement the foregoing method embodiments, and the implementation principles and technical effects are similar.
  • a CU is also provided in the embodiment of the present disclosure.
  • the principle of the CU is similar to the connection processing method in the embodiment of the present disclosure. Therefore, the implementation of the CU can refer to the implementation of the method, and the repeated description is not repeated.
  • the CU includes: a third processor 1901 and a third transceiver 1902;
  • the third transceiver 1901 is configured to: notify the DU that the CU updates or releases the F1 AP signaling and the TNL binding relationship.
  • the third transceiver 1901 is further configured to: send the first signaling to the DU, where the first signaling includes an identifier that updates the F1 AP signaling and the TNL binding relationship. Or sending a second signaling specifically for updating the F1 AP signaling and the TNL binding relationship to the DU.
  • the third transceiver 1901 is further configured to: receive the third signaling that is sent by the DU through the third TNL connection;
  • the third transceiver 1901 is further configured to: send, by using a fourth TNL connection, fourth signaling that responds to the third signaling to the DU, where the fourth signaling is used to indicate that the DU is according to the The fourth signaling updates the F1 AP signaling and TNL binding relationship.
  • the third transceiver 1901 is further configured to:
  • the CU is notified by the signaling that the CU binds the F1 AP signaling and the TNL binding relationship.
  • the second transceiver 1901 is further configured to: send a sixth signaling to the DU, where the sixth TNL connection is set to be empty, the sixth Setting the TNL connection to null indicates that the CU releases the F1 AP signaling bound on the sixth TNL connection.
  • the CU provided in this embodiment can perform the foregoing method embodiments, and the implementation principles and technical effects are similar, and details are not described herein again.
  • FIG. 20 is a structural diagram of a DU applied to an embodiment of the present disclosure.
  • the DU2000 includes: a processor 2001, a transceiver 2002, a memory 2003, and a bus interface, where:
  • the DU2000 further includes: a computer program stored on the memory 2003 and operable on the processor 2001, the computer program being executed by the processor 2001, implementing the following steps: determining one or more TNL addresses of the CU Establishing a plurality of TNL connections between the DU and the CU according to the one or more TNL addresses.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 2001 and various circuits of memory represented by memory 2003.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver 2002 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 2001 is responsible for managing the bus architecture and the usual processing, and the memory 2003 can store data used by the processor 2001 in performing operations.
  • the following steps may be further implemented: establishing a first TNL connection according to the one TNL address; receiving a second TNL address according to the first TNL connection; and according to the second TNL address , establish a second TNL connection.
  • the method further includes: receiving, according to the first TNL connection, an F1 interface setup response message, where the F1 interface setup response message includes a second TNL address; or, according to The first TNL connection receives a CU configuration upgrade message, where the CU configuration upgrade message includes a second TNL address.
  • the following steps may be implemented: receiving an update request message for updating the TNL connection of the DU; and updating the TNL connection of the DU according to the update request message.
  • the following steps may be implemented: receiving an F1 interface setup response message, where the F1 interface setup response message includes an update request message indicating that the TNL connection of the DU is updated; or And receiving a CU configuration upgrade message, where the CU configuration upgrade includes an update request message indicating that the TNL connection of the DU is updated.
  • the following steps may be implemented: receiving the first signaling, where the first signaling includes an identifier for updating the F1 AP signaling and the TNL binding relationship.
  • the following steps may be implemented: receiving the second signaling specifically for updating the F1 AP signaling and the TNL binding relationship.
  • the following steps may be further implemented: the third signaling sent to the CU by using the third TNL connection; and the receiving the third signaling by the CU through the fourth TNL connection.
  • the following steps may be further implemented: the third signaling sent to the CU by using the third TNL connection; and the receiving the third signaling by the CU through the fourth TNL connection.
  • the following steps may be further implemented: receiving, by using the fifth TNL connection, the fifth signaling sent by the CU, where the fifth signaling includes releasing the F1 AP signaling and the TNL. Message.
  • the following steps may be implemented: receiving the sixth signaling sent by the CU, where the sixth TNL connection in the sixth signaling is set to be empty.
  • FIG. 21 is a structural diagram of a CU to which an embodiment of the present disclosure is applied.
  • the CU 2100 includes a processor 2101, a transceiver 2102, a memory 2103, and a bus interface, where:
  • the CU 2100 further includes: a computer program stored on the memory 2103 and executable on the processor 2101.
  • the computer program is executed by the processor 2101, the following steps are implemented: notifying the CU of the DU to the F1
  • the AP signaling and TNL binding relationship are updated or released.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 2101 and various circuits of memory represented by memory 2103.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver 2102 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 2101 is responsible for managing the bus architecture and general processing, and the memory 2103 can store data used by the processor 2101 in performing operations.
  • the method further includes: sending, to the DU, the first signaling, where the first signaling includes an identifier for updating the F1 AP signaling and the TNL binding relationship; or And sending, to the DU, second signaling specifically used to update the F1 AP signaling and the TNL binding relationship.
  • the following steps may be implemented: receiving the third signaling sent by the DU through the third TNL connection; and sending, by the fourth TNL connection, the third signaling to the DU
  • the fourth signaling is used to indicate that the DU updates the F1 AP signaling and the TNL binding relationship according to the fourth signaling.
  • the following steps may be implemented: signaling, by the CU, that the CU releases the F1 AP signaling and the TNL binding relationship.
  • the following steps may be further implemented: sending a sixth signaling to the DU, where the sixth TNL connection is set to be empty, and the sixth TNL connection is set.
  • the null indicates that the CU releases the F1 AP signaling bound on the sixth TNL connection.
  • connection processing method is applied to a CU, and the specific steps are as follows:
  • Step 2201 Establish multiple TNL connections between the CU and the DU according to one or more TNL addresses.
  • a first TNL connection is established with the DU according to a TNL address; according to the first TNL connection, the second TNL address is sent to the DU; according to the second TNL address, Establish a second TNL connection.
  • the second TNL address may be sent to the DU in the following manner:
  • the method further includes: sending, to the DU, an update request message that updates the TNL connection of the DU.
  • the F1 interface setup response message is sent to the DU, where the F1 interface setup response message includes an update request message indicating that the TNL connection of the DU is updated; or, the CU configuration upgrade message is sent to the DU,
  • the CU configuration upgrade includes an update request message indicating an update of the TNL connection of the DU.
  • the CU2300 includes a fourth processor 2301 and a fourth transceiver 2302;
  • the fourth processor 2301 is configured to establish multiple TNL connections between the CU and the DU according to one or more TNL addresses.
  • the fourth processor 2301 is further configured to establish a first TNL connection with the DU according to the one TNL address; the fourth transceiver 2302 is further configured to use, according to the first TNL Connecting, sending a second TNL address to the DU; the fourth processor 2301 is further configured to establish a second TNL connection with the DU according to the second TNL address.
  • the fourth transceiver 2302 is further configured to send an F1 interface setup response message to the DU according to the first TNL connection, where the F1 interface setup response message includes a second TNL.
  • the CU configuration upgrade message is sent to the DU according to the first TNL connection, where the CU configuration upgrade message includes a second TNL address.
  • the fourth transceiver 2302 is further configured to send, to the DU, an update request message that updates a TNL connection of the DU.
  • the fourth transceiver 2302 is further configured to send an F1 interface setup response message to the DU, where the F1 interface setup response message includes an indication that the TNL connection of the DU is updated. Updating the request message; or sending a CU configuration upgrade message to the DU, the CU configuration upgrade including an update request message indicating an update of the TNL connection of the DU.
  • the embodiment of the present disclosure further provides a computer readable storage medium, where the computer program is stored on a computer program, and the computer program is executed by the processor to implement various processes of the method embodiment of the terminal power control, and can achieve the same The technical effect, in order to avoid duplication, will not be repeated here.
  • the computer readable storage medium such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • system and “network” are used interchangeably herein.
  • B corresponding to A means that B is associated with A, and B can be determined from A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network side device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

Landscapes

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

Abstract

本公开实施例提供了一种连接处理方法和设备，该方法包括：确定CU的一个或多个TNL地址；根据所述一个或多个TNL地址，建立DU与CU之间的多个TNL连接。

Description

连接处理方法和设备
相关申请的交叉引用
本申请主张在2017年10月19日在中国提交的中国专利申请号No.201710980574.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种集中单元(Central Unit，CU)-分布单元(Distributed Unit，DU)架构下连接处理方法和设备。
背景技术
第三代移动通信(3rdGeneration，3G)系统中接入网逻辑节点由基站(NodeB，NB)和无线网络控制器(Radio Network Controller，RNC)组成，第四代移动通信(4rd Generation，4G)逻辑架构设计更加扁平化，仅包含基站(Evolved Node B，eNB)。2015年12月份第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)无线接入网(Radio Access Network，RAN)全会启动了第五代移动通信(5rd Generation，5G)场景和需求研究项目，第71次RAN全会通过的5G场景和需求研究报告明确指出了对5G接入网架构的需求，其中区别于4G接入网的最为典型的需求是接入网支持分布式远端单元(Remote Unit，RU)和集中单元的逻辑功能划分，且支持协议栈功能在CU和DU之间迁移。
相比4G扁平化架构，接入网CU-DU两级架构的好处在于能够获得小区间协作增益，实现集中负载管理；高效实现密集组网下的集中控制，比如多连接，密集切换；获得池化增益，使能网络功能虚拟化(Network Function Virtualization，NFV)/软件定义网络(Software Defined Network，SDN)，满足运营商某些5G场景的部署需求。
CU是一个集中式节点，能够控制和协调多个小区，包含协议栈高层控制和数据功能，也可能包含一部分基带处理功能。DU是分布式单元实现射频拉远头(Remote Radio Head，RRH)功能和其余基带处理功能，CU和DU之 间通过前传接口连接。CU-DU之间的功能划分具有多种切分方案，不同切分方案的适用场景和性能增益均不同，同时对前传接口的带宽、传输时延、同步等参数要求也有很大差异。根据3GPP RAN3结论，将标准化分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)-无线链路层控制协议(Radio Link Control，RLC)切分方案，且CU-DU之间的接口定义为F1接口，如图1所示。F1接口的协议栈沿用传统接口定义方式，分为传输网络层(Transport Network Layer，TNL)和无线网络层(Radio Network Layer，RNL)，F1-C采用流控制传输协议(Stream Control Transmission Protocol，SCTP)保证信令可靠性，F1-U使用GTP-U(指的是用户层面的通用分组无线服务(General Packet Radio Service，GPRS)隧道协议)保证数据传输，且F1接口的一对CU-DU之间仅建立1个TNL连接，如图2a和图2b所示。
相关技术中结论是CU-DU之间建立一个TNL连接，面向未来5G CU-DU部署和实际使用存在以下几个问题：
1)未来CU将采用集中化部署方式，比如放在核心汇聚机房位置，且CU将采用云平台和虚拟化架构，CU的功能将在边缘数据中心以虚拟机形式呈现，按照实际的资源需求进行容量伸缩，比如进行实例化，根据用户数和业务的增加在云平台上产生新的CU实例(CU Instance)，将一部分负荷从一个CU迁移到另外一个CU，或者随着用户数和业务减少释放部分CU实例，这些CU实例可能具有不同的IP地址，参见图3。另外从保证可靠性的角度出发，集中的CU可能带来更大的网络宕机风险，如果CU-DU之间建立单一的TNL连接，如果CU或者传输网络发生故障，则会影响较大范围的网络可达性。因此，CU-DU之间建立一个TNL连接不能满足实际部署需求。
2)5G CU-DU架构需要同时满足多种业务需求，这些业务需求对端到端时延有着不同的需求，比如增强移动宽带(eMBB)对空口吞吐量有较高要求，但对时延要求不太高，但低时延高可靠业务对时延要求很高，因此同一个用户设备(User Equipment，UE)不同的业务或者不同UE可能需要接入部署在不同位置的CU，参见图4。CU-DU之间一个TNL连接无法满足该需求。
发明内容
鉴于上述技术问题，本公开实施例提供一种连接处理方法和设备，解决CU-DU之间一个TNL连接无法满足实际部署需求的问题。
第一方面，提供了一种连接处理方法，应用于分布单元DU，包括：
确定集中单元CU的一个或多个传输网络层TNL地址；
根据所述一个或多个TNL地址，建立DU与CU之间的多个TNL连接。
可选地，所述根据所述一个TNL地址，建立DU与CU之间的多个TNL连接，包括：
根据所述一个TNL地址，建立第一TNL连接；
根据所述第一TNL连接，接收第二TNL地址；
根据所述第二TNL地址，建立第二TNL连接。
可选地，所述根据所述第一TNL连接，接收第二TNL地址，包括：
根据所述第一TNL连接，接收F1接口建立响应消息，所述F1接口建立响应消息中包含第二TNL地址；
或者，
根据所述第一TNL连接，接收CU配置升级消息，所述CU配置升级消息中包含第二TNL地址。
可选地，所述方法还包括：
接收对所述DU的TNL连接进行更新的更新请求消息；
根据所述更新请求消息对所述DU的TNL连接进行更新。
可选地，所述对所述DU的TNL连接进行更新的更新请求消息，包括：
接收F1接口建立响应消息，所述F1接口建立响应消息中包含指示对所述DU的TNL连接进行更新的更新请求消息；
或者，
接收CU配置升级消息，所述CU配置升级中包含指示对所述DU的TNL连接进行更新的更新请求消息。
第二方面，还提供了一种连接处理方法，应用于CU，包括：
根据一个或多个TNL地址，建立CU与DU之间的多个TNL连接。
可选地，所述根据一个或多个TNL地址，建立CU与DU之间的多个TNL连接，包括：
根据所述一个TNL地址，与所述DU建立第一TNL连接；
根据所述第一TNL连接，向所述DU发送第二TNL地址；
根据所述第二TNL地址，与所述DU建立第二TNL连接。
可选地，所述根据所述第一TNL连接，向所述DU发送第二TNL地址，包括：
根据所述第一TNL连接，向所述DU发送F1接口建立响应消息，所述F1接口建立响应消息中包含第二TNL地址；
或者，
根据所述第一TNL连接，向所述DU发送CU配置升级消息，所述CU配置升级消息中包含第二TNL地址。
可选地，所述方法还包括：
向所述DU发送对所述DU的TNL连接进行更新的更新请求消息。
可选地，所述向所述DU发送对所述DU的TNL连接进行更新的更新请求消息，包括：
向所述DU发送F1接口建立响应消息，所述F1接口建立响应消息中包含指示对所述DU的TNL连接进行更新的更新请求消息；
或者，
向所述DU发送CU配置升级消息，所述CU配置升级中包含指示对所述DU的TNL连接进行更新的更新请求消息。
第三方面，还提供了一种连接处理方法，应用于分布单元DU，包括：
接收CU发送的所述CU对F1应用层AP信令与TNL绑定关系进行更新或释放的信令。
可选地，所述接收CU发送的所述CU对F1 AP信令与TNL绑定关系进行更新的信令，包括：
接收CU发送的第一信令，所述第一信令中包含更新F1 AP信令和TNL绑定关系的标识。
可选地，所述接收CU发送的所述CU对F1 AP信令与TNL绑定关系进行更新的信令，包括：
接收CU发送的专门用于更新F1 AP信令与TNL绑定关系的第二信令。
可选地，所述接收CU发送的所述CU对F1 AP信令与TNL绑定关系进行更新的信令，包括：
通过第三TNL连接向CU发送第三信令；
接收所述CU通过第四TNL连接发送的响应所述第三信令的第四信令。
可选地，所述接收CU发送的所述CU对F1 AP信令与TNL绑定关系进行释放的信令，包括：
接收第五信令，所述第五信令包含将F1 AP信令与第五TNL连接绑定关系释放的消息。
可选地，如果通过UE不相关信令通知所述DU，表示释放所述第五TNL连接上绑定的F1 AP信令；
如果通过UE相关信令通知DU，表示释放UE在所述第五TNL连接上绑定的F1 AP信令。
可选地，所述接收CU发送的所述CU对F1应用层AP信令与TNL绑定关系进行释放的信令，包括：
接收第六信令，所述第六信令中第六TNL连接设置为空，所述第六TNL连接设置为空表示所述CU释放第六TNL连接上绑定的F1AP信令。
第四方面，还提供了一种连接处理方法，应用于与DU TNL连接的CU，包括：
通知所述DU所述CU对F1 AP信令与TNL绑定关系进行更新或释放。
可选地，所述通知所述DU所述CU对F1 AP信令与TNL绑定关系进行更新，包括：
向所述DU发送第一信令，所述第一信令中包含更新F1 AP信令和TNL绑定关系的标识；
或者，
向所述DU发送专门用于更新F1 AP信令与TNL绑定关系的第二信令。
可选地，所述通知所述DU所述CU对F1 AP信令与TNL绑定关系进行更新，包括：
接收所述DU通过第三TNL发送的第三信令；
通过第四TNL向所述DU发送响应所述第三信令的第四信令，所述第四 信令用于指示所述DU根据所述第四信令对F1 AP信令与TNL绑定关系进行更新。
可选地，所述通知所述DU所述CU对F1 AP信令与TNL绑定关系进行释放，包括：
通过信令通知所述DU所述CU对F1 AP信令与TNL绑定关系进行释放。
可选地，所述通知所述DU所述CU对F1 AP信令与TNL绑定关系进行释放，包括：
向所述DU发送第六信令，所述第六信令中所述TNL连接设置为空，所述第六TNL连接设置为空表示所述CU释放第六TNL连接上绑定的F1 AP信令。
第五方面，还提供了一种分布单元DU，包括第一处理器和第一收发机；
所述第一处理器用于：确定CU的一个或多个TNL地址；以及根据所述一个或多个TNL地址，建立DU与CU之间的多个TNL连接。
第六方面，还提供了一种DU，包括：第二处理器和第二收发机；
所述第二收发机用于：接收CU发送的所述CU对F1应用层AP信令与TNL绑定关系进行更新或释放的信令。
第七方面，还提供了一种CU，包括：第三处理器和第三收发机；
所述第三收发机用于：通知DU所述CU对F1 AP信令与TNL绑定关系进行更新或释放。
第八方面，还提供了一种CU，包括：第四处理器和第四收发机；
所述第四处理器用于：根据一个或多个TNL地址，建立CU与DU之间的多个TNL连接。
第九方面，还提供了一种DU，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如第一方面所述的连接处理方法的步骤；或者，实现如第三方面所述的连接处理方法的步骤。
第十方面，还提供了一种CU，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如第二方面所述的连接处理方法的步骤；或者，实现如第四方面 所述的连接处理方法的步骤。
第十一方面，还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被所述处理器执行时实现如第一方面或者第二方面或者第三方面或者第四方面所述的连接处理方法的步骤。
这样，在本公开实施例中，通过CU-DU之间建立多个TNL连接可以满足未来5G CU在云平台虚拟化环境部署需求，以及用户根据业务需求选择不同TNL地址的CU设备。
附图说明
图1为CU-DU架构和接口的示意图；
图2a和图2b为F1接口协议栈的示意图；
图3为CU采用集中化部署的示意图；
图4为CU采用分布式部署的示意图；
图5为本公开实施例的连接处理方法的流程图之一；
图6为本公开实施例的连接处理方法的流程图之二；
图7为本公开实施例的TNL连接建立与管理的流程图之一；
图8为本公开实施例的连接处理方法的流程图之三；
图9为本公开实施例的TNL连接建立与管理的流程图之二；
图10为本公开实施例的连接处理方法的流程图之四；
图11为本公开实施例的连接处理方法的流程图之五；
图12为本公开实施例的连接处理方法的流程图之六；
图13为本公开实施例的连接处理方法的流程图之七；
图14为本公开实施例的连接处理方法的流程图之八；
图15为本公开实施例的连接处理方法的流程图之九；
图16为本公开实施例的连接处理方法的流程图之十；
图17为本公开实施例的DU的结构图之一；
图18为本公开实施例的DU的结构图之一；
图19为本公开实施例的CU的结构图之一；
图20为本公开实施例的DU的结构图之二；
图21为本公开实施例的CU的结构图之二；
图22为本公开实施例的连接处理方法的流程图之十一；
图23为本公开实施例的CU的结构图之三。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚，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，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作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。
参见图5，图中示出了一个实施例的连接处理方法的流程，该方法的执行主体为DU，具体步骤包括：
步骤501、确定CU的一个或多个TNL地址；
上述CU可以是一个CU逻辑单元，该CU逻辑单元可以包括多个CU实体。
例如，确定由操作、管理和维护(Operation，Administration and Maintenance，OAM)实体配置CU的一个或多个TNL地址。
步骤502、根据一个或多个TNL地址，建立DU与CU之间的多个TNL连接。
这样，通过CU-DU之间建立多个TNL连接可以满足未来5G CU在云平台虚拟化环境部署需求，以及用户根据业务需求选择不同TNL地址的CU设备。
参见图6，图中示出了另一个实施例的连接处理方法的流程，该方法的执行主体为DU，具体步骤包括：
步骤601、确定CU的一个TNL地址；
上述CU可以是一个CU实例(或者称为CU实体)。
例如，确定由OAM配置CU的一个TNL地址。
步骤602、根据一个TNL地址，建立DU第一TNL连接；
步骤603、根据第一TNL连接，接收第二TNL地址；
上述第二TNL地址可以包括第二CU实例和第三CU实例的TNL地址。
例如：接收F1接口建立响应消息(F1 SETUP RESPONSE消息)，该F1接口建立响应消息中包含第二TNL地址；或者，接收CU配置升级消息(CU CONFIGURATION UPDATE消息)，该CU配置升级消息中包含第二TNL地址。
步骤604、根据第二TNL地址，建立第二TNL连接。
例如，如果第二TNL地址包括第二CU实例和第三CU实例的TNL地址，则根据第二TNL地址，建立与第二CU实例和第三CU实例的TNL连接。
这样，通过CU-DU之间建立多个TNL连接可以满足未来5G CU在云平台虚拟化环境部署需求，以及用户根据业务需求选择不同TNL地址的CU设备。
参见图7，图中示出了又一个实施例中TNL连接建立与管理的流程，具体步骤如下：
步骤701、OAM为DU配置一个CU实例1(CU Instance 1)的TNL地址；
步骤702、DU与CU Instance 1建立TNL连接；
步骤703、DU在该TNL连接上发起F1 SETUP REQUEST(F1接口建立请求)消息；
步骤704、CU Instance 1将TNL连接列表发给DU，该TNL连接列表中包含CU Instance 2和CU Instance 3的TNL地址；
例如，通过F1 SETUP RESPONSE(F1接口建立响应)消息，也可以通过CU CONFIGURATION UPDATE(CU配置升级)消息将TNL连接列表发给DU；
步骤705、DU与CU Instance 2和CU Instance 3建立TNL连接。
这样，通过CU-DU之间建立多个TNL连接可以满足未来5G CU在云平台虚拟化环境部署需求，以及用户根据业务需求选择不同TNL地址的CU设备。
参见图8，图中示出了又一个实施例的连接处理方法的流程，该方法的执行主体为DU，具体步骤包括：
步骤801、确定CU的多个TNL地址；
上述CU可以是一个逻辑CU，该逻辑CU包括多个CU实例，每个CU实例对应一个TNL地址。
例如，确定由OAM配置CU的多个TNL地址。
步骤802、根据多个TNL地址，建立DU与CU之间的多个TNL连接；
步骤803、接收对DU的TNL连接进行更新的更新请求消息；
例如：接收F1接口建立响应消息，该F1接口建立响应消息中包含指示对DU的TNL连接进行更新的更新请求消息；或者，接收CU配置升级消息，该CU配置升级中包含指示对DU的TNL连接进行更新的更新请求消息。
步骤804、根据更新请求消息对DU的TNL连接进行更新。
这样，通过CU-DU之间建立多个TNL连接可以满足未来5G CU在云平台虚拟化环境部署需求，以及用户根据业务需求选择不同TNL地址的CU设备。
参见图9，图中示出了另一个实施例的TNL连接建立与管理的流程，具体步骤如下：
步骤901、OAM为DU配置CU Instance 1、CU Instance 2和CU Instance 3的TNL地址；
步骤902、DU与CU Instance 1、CU Instance 2和CU Instance 3建立TNL连接；
需要说明的是，如果CU发现某些TNL连接已不再支持，那么可以直接在SCTP层拒绝TNL连接建立。
步骤903、DU在已经建立的TNL连接上选择CU Instance 1的TNL连接发起F1SETUP REQUEST消息；
步骤904、CU Instance 1通知DU对TNL连接列表进行更新；
例如：添加或者删除部分TNL连接；进一步地，可以通过F1 SETUP RESPONSE消息，也可以通过CU CONFIGURATION UPDATE消息告知DU对TNL连接列表进行更新；
步骤905、DU对TNL连接进行更新。
这样，通过CU-DU之间建立多个TNL连接可以满足未来5G CU在云平 台虚拟化环境部署需求，以及用户根据业务需求选择不同TNL地址的CU设备。
参见图10，图中示出了又一个实施例的连接处理方法的流程，该方法的执行主体为DU，具体步骤如下：
步骤1001、接收CU发送的所述CU对F1 AP信令与TNL绑定关系进行更新或释放的信令。
需要说明的是，上述F1 AP信令是指CU-DU之间通过F1-AP传递的信令，该F1 AP信令包括：UE相关信令和UE不相关信令，CU可以改变或更新F1 AP信令在哪个TNL上传输，且UE相关信令和UE不相关信令可以采用不同TNL连接传输。
这样，在本公开实施例中，DU能够获知CU改变或更新F1 AP与TNL绑定关系。
参见图11，图中示出了又一个实施例的连接处理方法的流程，该方法的执行主体为与DU TNL连接的CU，具体步骤如下：
步骤1101、通知DU该CU对F1 AP信令与TNL绑定关系进行更新或释放。
需要说明的是，上述F1 AP信令是指CU-DU之间通过F1-AP传递的信令，该F1 AP信令包括：UE相关信令和UE不相关信令，CU可以改变或更新F1 AP信令在哪个TNL上传输，且UE相关信令和UE不相关信令可以采用不同TNL连接传输。
参见图12，图中示出了又一个实施例的连接处理方法的流程，具体步骤如下：
步骤1201、CU向DU发送第一信令，该第一信令中包含更新或改变F1 AP信令和TNL绑定关系的标识；
可选地，上述第一信令可以是相关技术中的F1 AP信令，即在相关技术中的F1 AP信令中增加更新F1 AP信令和TNL绑定关系的标识。
步骤1202、DU接收CU发送的第一信令。
即，DU通过第一信令能够获知CU对F1 AP信令和TNL绑定关系进行了更新。
需要说明的是，本公开实施例的更新F1 AP信令和TNL绑定关系的方式既可以针对所有F1 AP信令，也可以只针对UE不相关信令或者UE相关信令。
参见图13，图中示出了又一个实施例的连接处理方法的流程，具体步骤如下：
步骤1301、CU向DU发送专门用于更新F1 AP信令与TNL绑定关系的第二信令；
可选地，第二信令是专门的F1 AP与TNL绑定关系更新信令，例如：AP-TNL BUNDLING UPDATE信令(AP-TNL绑定更新信令)。
步骤1302、接收CU发送的第二信令。
即，DU通过第二信令能够获知CU对F1 AP信令和TNL绑定关系进行了更新。
需要说明的是，本公开实施例的更新F1 AP信令和TNL绑定关系的方式既可以针对所有F1 AP信令，也可以只针对UE不相关信令或者UE相关信令。
参见图14，图中示出了又一个实施例的连接处理方法的流程，具体步骤如下：
步骤1401、DU通过第三TNL连接向CU发送第三信令；
步骤1402、CU接收DU通过第三TNL发送的请求对F1 AP信令与TNL绑定关系进行更新的第三信令；
步骤1403、CU通过第四TNL连接向DU发送响应第三信令的第四信令；
步骤1404、DU接收CU通过第四TNL连接发送的第四信令。
这样，DU能够获知CU对F1 AP信令与TNL绑定关系进行了更新，更新为F1 AP信令与第四TNL连接的绑定关系。
在本公开实施例中，DU首先在TNL1上发送请求信令，CU决定改变或更新F1 AP信令与TNL绑定关系，该CU在TNL2上发送反馈信令，DU在TNL2收到反馈信令便了解CU对F1 AP信令与TNL绑定关系进行了更新。
需要说明的是，本公开实施例的更新F1 AP信令和TNL绑定关系的方式能够适用于class1 F1 AP信令以及REQ-RES消息。
参见图15，图中示出了又一个实施例的连接处理方法的流程，具体步骤如下：
步骤1501、CU将F1 AP信令与TNL绑定关系释放的消息通过第五信令发送给DU；
步骤1502、DU接收CU发送的第五信令。
如果通过UE不相关信令通知DU，例如：CU CONFIGURATION UPDATE信令(CU配置升级信令)，将该第五TNL连接上绑定的信令(例如所有信令)进行释放；如果通过UE相关信令通知DU，例如在已有UE context相关的信令添加指示或者使用新的专门释放的信令，将释放UE在该第五TNL连接上的绑定关系。
参见图16，图中示出了又一个实施例的连接处理方法的流程，具体步骤如下：
步骤1601、CU向DU发送第六信令，该第六信令中第六TNL连接设置为空(NULL)。
其中，第六TNL连接设置为空表示CU释放第六TNL连接上绑定的F1 AP信令。
步骤1602、接收CU发送的第六信令。
本公开实施例中还提供了一种DU，由于DU解决问题的原理与本公开实施例中连接处理方法相似，因此该DU的实施可以参见方法的实施，重复之处不再敷述。
参见图17，在本公开实施例中DU包括：第一处理器1701和第一收发机1702；
第一处理器1701用于：确定CU的一个或多个TNL地址；以及根据一个或多个TNL地址，建立DU与CU之间的多个TNL连接。
在本公开实施例中，可选地，第一处理器1701还用于：根据一个TNL地址，建立第一TNL连接；
所述第一收发机1702用于：根据所述第一TNL连接，接收第二TNL地址；
所述第一处理器1701还用于：根据所述第二TNL地址，建立第二TNL连接。
在本公开实施例中，可选地，第一收发机1702进一步用于：根据所述第 一TNL连接，接收F1接口建立响应消息，F1接口建立响应消息中包含第二TNL地址；或者，接收CU配置升级消息，CU配置升级消息中包含第二TNL地址。
在本公开实施例中，可选地，第一收发机1702还用于：接收对DU的TNL连接进行更新的更新请求消息；
所述第一处理器1701还用于：根据更新请求消息指示对DU的TNL连接进行更新。
在本公开实施例中，可选地，第一收发机1702进一步用于：接收F1接口建立响应消息，F1接口建立响应消息中包含指示对DU的TNL连接进行更新的更新请求消息；或者，接收CU配置升级消息，CU配置升级中包含指示对DU的TNL连接进行更新的更新请求消息。
在本公开实施例中，可选地，第一处理器1701进一步用于：确定由OAM配置的CU的一个或多个TNL地址。
本实施例提供的DU，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
本公开实施例中还提供了一种DU，由于DU解决问题的原理与本公开实施例中连接处理方法相似，因此该DU的实施可以参见方法的实施，重复之处不再敷述。
参见图18，在本公开实施例中DU包括：第二处理器1801和第二收发机1802；该第二收发机1802用于：接收CU发送的所述CU对F1应用层AP信令与TNL绑定关系进行更新或释放的信令。
在本公开实施例中，可选地，第二收发机1802还用于：接收第一信令，所述第一信令中包含更新F1 AP信令和TNL绑定关系的标识。
在本公开实施例中，可选地，第二收发机1802还用于：接收专门用于更新F1 AP信令与TNL绑定关系的第二信令。
在本公开实施例中，可选地，第二收发机1802还用于：通过第三TNL连接向CU发送第三信令；
第二收发机1802还用于：接收所述CU通过第四TNL连接发送的响应所述第三信令的第四信令。
在本公开实施例中，可选地，所述第二收发机1802还用于：接收CU发送的第五信令，所述第五信令包含将F1 AP信令与第五TNL连接绑定释放的消息。
在本公开实施例中，可选地，如果通过UE不相关信令通知所述DU，表示释放所述第五TNL连接上绑定的F1 AP信令；如果通过UE相关信令通知DU，表示释放所述UE在所述第五TNL连接上绑定的F1 AP信令。在本公开实施例中，可选地，第二收发机1802还用于：接收CU发送的第六信令，所述第六信令中第六TNL连接设置为空，所述第六TNL连接设置为空表示所述CU释放第六TNL连接上绑定的F1 AP信令。
本实施例提供的DU，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
本公开实施例中还提供了一种CU，由于CU解决问题的原理与本公开实施例中连接处理方法相似，因此该CU的实施可以参见方法的实施，重复之处不再敷述。
参见图19，在本公开实施例中CU包括：第三处理器1901和第三收发机1902；
第三收发机1901用于：通知DU该CU对F1 AP信令与TNL绑定关系进行更新或释放。
在本公开实施例中，可选地，第三收发机1901进一步用于：向所述DU发送第一信令，所述第一信令中包含更新F1 AP信令和TNL绑定关系的标识；或者，向所述DU发送专门用于更新F1 AP信令与TNL绑定关系的第二信令。
在本公开实施例中，可选地，所述第三收发机1901进一步用于：接收所述DU通过第三TNL连接发送的第三信令；
所述第三收发机1901进一步用于：通过第四TNL连接向所述DU发送响应所述第三信令的第四信令，所述第四信令用于指示所述DU根据所述第四信令对F1 AP信令与TNL绑定关系进行更新。
在本公开实施例中，可选地，所述第三收发机1901进一步用于：
通过信令通知所述DU所述CU对F1 AP信令与TNL绑定关系进行释放。
在本公开实施例中，可选地，述第二收发机1901进一步用于：向所述DU 发送第六信令，所述第六信令中第六TNL连接设置为空，所述第六TNL连接设置为空表示所述CU释放第六TNL连接上绑定的F1 AP信令。
本实施例提供的CU，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
请参阅图20，图20是本公开实施例应用的DU的结构图，如图20所示，DU2000包括：处理器2001、收发机2002、存储器2003和总线接口，其中：
在本公开实施例中，DU2000还包括：存储在存储器上2003并可在处理器2001上运行的计算机程序，计算机程序被处理器2001、执行时实现如下步骤：确定CU的一个或多个TNL地址；根据所述一个或多个TNL地址，建立DU与CU之间的多个TNL连接。
在图20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2001代表的一个或多个处理器和存储器2003代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机2002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。
处理器2001负责管理总线架构和通常的处理，存储器2003可以存储处理器2001在执行操作时所使用的数据。
可选的，计算机程序被处理器2003执行时还可实现如下步骤：根据所述一个TNL地址，建立第一TNL连接；根据第一TNL连接，接收第二TNL地址；根据所述第二TNL地址，建立第二TNL连接。
可选的，计算机程序被处理器2003执行时还可实现如下步骤：根据所述第一TNL连接，接收F1接口建立响应消息，所述F1接口建立响应消息中包含第二TNL地址；或者，根据所述第一TNL连接，接收CU配置升级消息，所述CU配置升级消息中包含第二TNL地址。
可选的，计算机程序被处理器2003执行时还可实现如下步骤：接收对所述DU的TNL连接进行更新的更新请求消息；根据所述更新请求消息对所述DU的TNL连接进行更新。
可选的，计算机程序被处理器2003执行时还可实现如下步骤：接收F1 接口建立响应消息，所述F1接口建立响应消息中包含指示对所述DU的TNL连接进行更新的更新请求消息；或者，接收CU配置升级消息，所述CU配置升级中包含指示对所述DU的TNL连接进行更新的更新请求消息。
可选的，计算机程序被处理器2003执行时还可实现如下步骤：接收第一信令，所述第一信令中包含更新F1 AP信令和TNL绑定关系的标识。
可选的，计算机程序被处理器2003执行时还可实现如下步骤：接收专门用于更新F1 AP信令与TNL绑定关系的第二信令。
可选的，计算机程序被处理器2003执行时还可实现如下步骤：通过第三TNL连接向CU发送的第三信令；接收CU通过第四TNL连接发送的响应所述第三信令的第四信令。
可选的，计算机程序被处理器2003执行时还可实现如下步骤：通过第五TNL连接接收CU发送的第五信令，所述第五信令包含将F1 AP信令与TNL绑定释放的消息。
可选的，计算机程序被处理器2003执行时还可实现如下步骤：接收CU发送的第六信令，所述第六信令中第六TNL连接设置为空。
请参阅图21，图21是本公开实施例应用的CU的结构图，如图21所示，CU2100包括：处理器2101、收发机2102、存储器2103和总线接口，其中：
在本公开实施例中，CU2100还包括：存储在存储器上2103并可在处理器2101上运行的计算机程序，计算机程序被处理器2101、执行时实现如下步骤：通知所述DU所述CU对F1 AP信令与TNL绑定关系进行更新或释放。
在图21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2101代表的一个或多个处理器和存储器2103代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机2102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。
处理器2101负责管理总线架构和通常的处理，存储器2103可以存储处理器2101在执行操作时所使用的数据。
可选的，计算机程序被处理器2103执行时还可实现如下步骤：向所述DU 发送第一信令，所述第一信令中包含更新F1 AP信令和TNL绑定关系的标识；或者，向所述DU发送专门用于更新F1 AP信令与TNL绑定关系的第二信令。
可选的，计算机程序被处理器2103执行时还可实现如下步骤：接收所述DU通过第三TNL连接发送的第三信令；通过第四TNL连接向所述DU发送响应所述第三信令的第四信令，所述第四信令用于指示所述DU根据所述第四信令对F1 AP信令与TNL绑定关系进行更新。
可选的，计算机程序被处理器2103执行时还可实现如下步骤：通过信令通知所述DU所述CU对F1 AP信令与TNL绑定关系进行释放。
可选的，计算机程序被处理器2103执行时还可实现如下步骤：向所述DU发送第六信令，所述第六信令中第六TNL连接设置为空，所述第六TNL连接设置为空表示所述CU释放第六TNL连接上绑定的F1 AP信令。
参见图22，图中示出了一种连接处理方法的流程，应用于CU，具体步骤如下：
步骤2201、根据一个或多个TNL地址，建立CU与DU之间的多个TNL连接。
可选地，在本公开实施例中，在步骤2201中根据一个TNL地址，与DU建立第一TNL连接；根据第一TNL连接，向DU发送第二TNL地址；根据第二TNL地址，与所述建立第二TNL连接。
可选地，在本公开实施例中，可通过以下方式向DU发送第二TNL地址：
根据所述第一TNL连接，向所述DU发送F1接口建立响应消息，所述F1接口建立响应消息中包含第二TNL地址；
或者，
根据所述第一TNL连接，向所述DU发送CU配置升级消息，所述CU配置升级消息中包含第二TNL地址。
可选地，在本公开实施例中，在步骤2201之后，方法还包括：向所述DU发送对所述DU的TNL连接进行更新的更新请求消息。
具体地，向所述DU发送F1接口建立响应消息，所述F1接口建立响应消息中包含指示对所述DU的TNL连接进行更新的更新请求消息；或者，向所述DU发送CU配置升级消息，所述CU配置升级中包含指示对所述DU的 TNL连接进行更新的更新请求消息。
这样，通过CU-DU之间建立多个TNL连接可以满足未来5G CU在云平台虚拟化环境部署需求，以及用户根据业务需求选择不同TNL地址的CU设备。
参见图23，图中示出了一种CU的结构，CU2300包括第四处理器2301和第四收发机2302；
所述第四处理器2301用于：根据一个或多个TNL地址，建立CU与DU之间的多个TNL连接。
在本公开实施例中，可选地，第四处理器2301进一步用于根据所述一个TNL地址，与所述DU建立第一TNL连接；第四收发机2302进一步用于根据所述第一TNL连接，向所述DU发送第二TNL地址；第四处理器2301进一步用于根据所述第二TNL地址，与所述DU建立第二TNL连接。
在本公开实施例中，可选地，第四收发机2302进一步用于根据所述第一TNL连接，向所述DU发送F1接口建立响应消息，所述F1接口建立响应消息中包含第二TNL地址；或者，根据所述第一TNL连接，向所述DU发送CU配置升级消息，所述CU配置升级消息中包含第二TNL地址。
在本公开实施例中，可选地，第四收发机2302还用于向所述DU发送对所述DU的TNL连接进行更新的更新请求消息。
在本公开实施例中，可选地，第四收发机2302进一步用于向所述DU发送F1接口建立响应消息，所述F1接口建立响应消息中包含指示对所述DU的TNL连接进行更新的更新请求消息；或者，向所述DU发送CU配置升级消息，所述CU配置升级中包含指示对所述DU的TNL连接进行更新的更新请求消息。
这样，通过CU-DU之间建立多个TNL连接可以满足未来5G CU在云平台虚拟化环境部署需求，以及用户根据业务需求选择不同TNL地址的CU设备。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述终端功率控制的方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再 赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本公开的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本公开的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本公开实施例的实施过程构成任何限定。
另外，本文中术语“系统”和“网络”在本文中常可互换使用。
应理解，本文中术语“和/或”，仅仅是一种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。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请所提供的实施例中，应理解，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
在本申请所提供的几个实施例中，应该理解到，所揭露方法和设备，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
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包括，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，也可以采用硬件加软件 功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元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，或者网络侧设备等)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述的是本公开的优选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以做出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。

Claims (29)

  1. 一种连接处理方法，应用于分布单元DU，包括：
    确定集中单元CU的一个或多个传输网络层TNL地址；
    根据所述一个或多个TNL地址，建立DU与CU之间的多个TNL连接。
  2. 根据权利要求1所述的方法，其中，所述根据所述一个TNL地址，建立DU与CU之间的多个TNL连接，包括：
    根据所述一个TNL地址，建立第一TNL连接；
    根据所述第一TNL连接，接收第二TNL地址；
    根据所述第二TNL地址，建立第二TNL连接。
  3. 根据权利要求2所述的方法，其中，所述根据所述第一TNL连接，接收第二TNL地址，包括：
    根据所述第一TNL连接，接收F1接口建立响应消息，所述F1接口建立响应消息中包含第二TNL地址；
    或者，
    根据所述第一TNL连接，接收CU配置升级消息，所述CU配置升级消息中包含第二TNL地址。
  4. 根据权利要求1所述的方法，所述方法还包括：
    接收对所述DU的TNL连接进行更新的更新请求消息；
    根据所述更新请求消息对所述DU的TNL连接进行更新。
  5. 根据权利要求4所述的方法，其中，所述对所述DU的TNL连接进行更新的更新请求消息，包括：
    接收F1接口建立响应消息，所述F1接口建立响应消息中包含指示对所述DU的TNL连接进行更新的更新请求消息；
    或者，
    接收CU配置升级消息，所述CU配置升级中包含指示对所述DU的TNL连接进行更新的更新请求消息。
  6. 一种连接处理方法，应用于CU，包括：
    根据一个或多个TNL地址，建立CU与DU之间的多个TNL连接。
  7. 根据权利要求6所述的方法，其中，所述根据一个或多个TNL地址，建立CU与DU之间的多个TNL连接，包括：
    根据所述一个TNL地址，与所述DU建立第一TNL连接；
    根据所述第一TNL连接，向所述DU发送第二TNL地址；
    根据所述第二TNL地址，与所述DU建立第二TNL连接。
  8. 根据权利要求6所述的方法，其中，所述根据所述第一TNL连接，向所述DU发送第二TNL地址，包括：
    根据所述第一TNL连接，向所述DU发送F1接口建立响应消息，所述F1接口建立响应消息中包含第二TNL地址；
    或者，
    根据所述第一TNL连接，向所述DU发送CU配置升级消息，所述CU配置升级消息中包含第二TNL地址。
  9. 根据权利要求6所述的方法，所述方法还包括：
    向所述DU发送对所述DU的TNL连接进行更新的更新请求消息。
  10. 根据权利要求9所述的方法，其中，所述向所述DU发送对所述DU的TNL连接进行更新的更新请求消息，包括：
    向所述DU发送F1接口建立响应消息，所述F1接口建立响应消息中包含指示对所述DU的TNL连接进行更新的更新请求消息；
    或者，
    向所述DU发送CU配置升级消息，所述CU配置升级中包含指示对所述DU的TNL连接进行更新的更新请求消息。
  11. 一种连接处理方法，应用于分布单元DU，包括：
    接收CU发送的所述CU对F1应用层AP信令与TNL绑定关系进行更新或释放的信令。
  12. 根据权利要求11所述的方法，其中，所述接收CU发送的所述CU对F1AP信令与TNL绑定关系进行更新的信令，包括：
    接收CU发送的第一信令，所述第一信令中包含更新F1AP信令和TNL绑定关系的标识。
  13. 根据权利要求11所述的方法，其中，所述接收CU发送的所述CU 对F1AP信令与TNL绑定关系进行更新的信令，包括：
    接收CU发送的专门用于更新F1AP信令与TNL绑定关系的第二信令。
  14. 根据权利要求11所述的方法，其中，所述接收CU发送的所述CU对F1AP信令与TNL绑定关系进行更新的信令，包括：
    通过第三TNL连接向CU发送第三信令；
    接收所述CU通过第四TNL连接发送的响应所述第三信令的第四信令。
  15. 根据权利要求6所述的方法，其中，所述接收CU发送的所述CU对F1AP信令与TNL绑定关系进行释放的信令，包括：
    接收第五信令，所述第五信令包含将F1AP信令与第五TNL连接绑定关系释放的消息。
  16. 根据权利要求15所述的方法，其中，如果通过UE不相关信令通知所述DU，表示释放所述第五TNL连接上绑定的F1AP信令；
    如果通过UE相关信令通知DU，表示释放UE在所述第五TNL连接上绑定的F1AP信令。
  17. 根据权利要求11所述的方法，其中，所述接收CU发送的所述CU对F1应用层AP信令与TNL绑定关系进行释放的信令，包括：
    接收第六信令，所述第六信令中第六TNL连接设置为空，所述第六TNL连接设置为空表示所述CU释放第六TNL连接上绑定的F1AP信令。
  18. 一种连接处理方法，应用于与DU TNL连接的CU，包括：
    通知所述DU所述CU对F1AP信令与TNL绑定关系进行更新或释放。
  19. 根据权利要求18所述的方法，其中，所述通知所述DU所述CU对F1AP信令与TNL绑定关系进行更新，包括：
    向所述DU发送第一信令，所述第一信令中包含更新F1AP信令和TNL绑定关系的标识；
    或者，
    向所述DU发送专门用于更新F1AP信令与TNL绑定关系的第二信令。
  20. 根据权利要求18所述的方法，其中，所述通知所述DU所述CU对F1AP信令与TNL绑定关系进行更新，包括：
    接收所述DU通过第三TNL发送的第三信令；
    通过第四TNL向所述DU发送响应所述第三信令的第四信令，所述第四信令用于指示所述DU根据所述第四信令对F1AP信令与TNL绑定关系进行更新。
  21. 根据权利要求18所述的方法，其中，所述通知所述DU所述CU对F1AP信令与TNL绑定关系进行释放，包括：
    通过信令通知所述DU所述CU对F1AP信令与TNL绑定关系进行释放。
  22. 根据权利要求18所述的方法，其中，所述通知所述DU所述CU对F1AP信令与TNL绑定关系进行释放，包括：
    向所述DU发送第六信令，所述第六信令中所述TNL连接设置为空，所述第六TNL连接设置为空表示所述CU释放第六TNL连接上绑定的F1AP信令。
  23. 一种分布单元DU，包括第一处理器和第一收发机；
    所述第一处理器用于：确定CU的一个或多个TNL地址；以及根据所述一个或多个TNL地址，建立DU与CU之间的多个TNL连接。
  24. 一种DU，包括：第二处理器和第二收发机；
    所述第二收发机用于：接收CU发送的所述CU对F1应用层AP信令与TNL绑定关系进行更新或释放的信令。
  25. 一种CU，包括：第三处理器和第三收发机；
    所述第三收发机用于：通知DU所述CU对F1AP信令与TNL绑定关系进行更新或释放。
  26. 一种CU，包括：第四处理器和第四收发机；
    所述第四处理器用于：根据一个或多个TNL地址，建立CU与DU之间的多个TNL连接。
  27. 一种DU，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至6任一项所述的连接处理方法的步骤；或者，实现如权利要求11至17中任一项所述的连接处理方法的步骤。
  28. 一种CU，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权 利要求7至10中任一项所述的连接处理方法的步骤；或者，实现如权利要求18至23中任一项所述的连接处理方法的步骤。
  29. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至6中任一项所述的连接处理方法的步骤，或者，实现如权利要求7至10中任一项所述的连接处理方法的步骤，或者，实现如权利要求11至17中任一项所述的连接处理方法的步骤，或者，实现如权利要求18至23中任一项所述的连接处理方法的步骤。
PCT/CN2018/107213 2017-10-19 2018-09-25 连接处理方法和设备 WO2019076182A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18867985.6A EP3700291A4 (en) 2017-10-19 2018-09-25 METHOD AND DEVICE FOR CONNECTION PROCESSING
US16/757,594 US11497071B2 (en) 2017-10-19 2018-09-25 Association handling method and device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710980574.3 2017-10-19
CN201710980574.3A CN109688631B (zh) 2017-10-19 2017-10-19 一种连接处理方法和设备

Publications (1)

Publication Number Publication Date
WO2019076182A1 true WO2019076182A1 (zh) 2019-04-25

Family

ID=66173977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/107213 WO2019076182A1 (zh) 2017-10-19 2018-09-25 连接处理方法和设备

Country Status (4)

Country Link
US (1) US11497071B2 (zh)
EP (1) EP3700291A4 (zh)
CN (1) CN109688631B (zh)
WO (1) WO2019076182A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3945709A1 (en) * 2020-07-27 2022-02-02 Mavenir Systems, Inc. Method for selecting the transport network layer association (tnla) within 5g ran systems

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110536482B (zh) * 2018-09-28 2023-04-07 中兴通讯股份有限公司 一种节点之间链路连接管理的方法及相关设备
US11297669B2 (en) * 2018-11-02 2022-04-05 Samsung Electronics Co., Ltd. Method for transmitting control signaling in relay network, configuration method and device
EP4047987A4 (en) * 2019-11-08 2022-11-16 Huawei Technologies Co., Ltd. METHOD OF BUILDING AN IAB NODE WITH DUAL CONNECTIVITY AND COMMUNICATION DEVICE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106162730A (zh) * 2016-07-12 2016-11-23 上海华为技术有限公司 一种通信的方法、设备及系统
CN106538037A (zh) * 2016-09-26 2017-03-22 北京小米移动软件有限公司 无线承载的配置方法、装置及系统
CN106550490A (zh) * 2016-10-31 2017-03-29 北京小米移动软件有限公司 一种无线链路失败的处理方法和装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1953406B (zh) * 2005-10-19 2011-06-01 株式会社Ntt都科摩 接入混合网的方法和网关设备、无线终端以及通信系统
CN101242348A (zh) * 2007-02-08 2008-08-13 华为技术有限公司 传输分组数据的方法、通讯系统及通讯装置
EP2276316A4 (en) * 2008-05-02 2013-12-18 Fujitsu Ltd CONTROLLER, COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND CONTROL METHOD
CN102857376B (zh) * 2008-07-03 2016-08-31 南京中兴新软件有限责任公司 分层无线接入系统的网络管理方法
CN102404378B (zh) * 2010-09-07 2014-11-05 成都索贝数码科技股份有限公司 一种流媒体分发传输网络系统
CN103404227B (zh) * 2011-04-28 2017-02-15 Lg电子株式会社 在无线通信系统中启动x2接口设置的方法和设备
CN103813478A (zh) * 2012-11-13 2014-05-21 无锡华御信息技术有限公司 单兵侦察数据通信保障系统
US10708145B2 (en) * 2012-12-13 2020-07-07 Level 3 Communications, Llc Devices and methods supporting content delivery with adaptation services with feedback from health service
US9094899B2 (en) * 2013-05-28 2015-07-28 Rivada Networks, Llc Cell selection in dynamic spectrum arbitrage system
CN105264956A (zh) * 2013-10-16 2016-01-20 华为技术有限公司 通信方法、通信装置及通信系统
WO2015113283A1 (zh) * 2014-01-29 2015-08-06 华为技术有限公司 节点间通信处理方法及路由确定节点
CN104902580B (zh) * 2014-03-05 2021-06-01 北京三星通信技术研究有限公司 一种小小区系统中支持数据转发的方法
WO2016021822A1 (en) * 2014-08-07 2016-02-11 Lg Electronics Inc. Method for processing a packet data convergence protocol packet data unit at a user equipment in a dual connectivity systme and device therefor
BR112017012744A2 (pt) * 2014-12-17 2018-03-13 Ericsson Telefon Ab L M atribuição flexível de funções de rede para acesso via rádio
CN109548174B (zh) * 2017-08-11 2021-09-17 华为技术有限公司 一种偶联管理的方法和网络节点

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106162730A (zh) * 2016-07-12 2016-11-23 上海华为技术有限公司 一种通信的方法、设备及系统
CN106538037A (zh) * 2016-09-26 2017-03-22 北京小米移动软件有限公司 无线承载的配置方法、装置及系统
CN106550490A (zh) * 2016-10-31 2017-03-29 北京小米移动软件有限公司 一种无线链路失败的处理方法和装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "TNL Solution for F1-C", 3GPP TSG RAN WG3 MEETING #97B, R3-173959, 29 September 2017 (2017-09-29), XP051356453 *
See also references of EP3700291A4 *
ZTE ET AL.: "Left ID Issues over F1 Interface", 3GPP TSG RAN WG3 NR#97BIS, R3-173656, 29 September 2017 (2017-09-29), XP051356310 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3945709A1 (en) * 2020-07-27 2022-02-02 Mavenir Systems, Inc. Method for selecting the transport network layer association (tnla) within 5g ran systems

Also Published As

Publication number Publication date
EP3700291A1 (en) 2020-08-26
CN109688631A (zh) 2019-04-26
US11497071B2 (en) 2022-11-08
US20210204341A1 (en) 2021-07-01
EP3700291A4 (en) 2022-01-05
CN109688631B (zh) 2021-11-19

Similar Documents

Publication Publication Date Title
CN108668381B (zh) 通信方法及装置
US20220174759A1 (en) Method and apparatus for operating wireless communication system having separated mobility management and session management
JP7135100B2 (ja) パケット伝送方法、装置、およびシステム
JP7440562B2 (ja) 情報伝送方法及び装置
US20190335365A1 (en) Network Handover Method and Related Device
WO2018171398A1 (zh) QoS处理方法和设备
WO2019076182A1 (zh) 连接处理方法和设备
WO2019129197A1 (zh) 一种通信方法，设备及其系统
WO2019196811A1 (zh) 通信方法和相关装置
WO2019185062A1 (zh) 一种通信方法及装置
WO2019029520A1 (zh) 一种寻呼消息的发送方法及相关设备
US10447603B2 (en) Control signaling transmission method and device
WO2020042848A1 (zh) 一种网络切片管理方法及装置
WO2020088675A1 (zh) 一种通信方法及装置
WO2021026706A1 (zh) 一种f1接口管理方法及装置
WO2021047443A1 (zh) 一种业务数据包转发的方法及装置
US11323394B2 (en) Buffer control method, network element, and controller
WO2016101617A1 (zh) 一种切换流程中安全信息的处理方法、接入网关及基站
WO2019192306A1 (zh) 报文传输方法、装置和系统
WO2023246746A1 (zh) 一种通信方法及相关设备
WO2023273824A1 (zh) 切换方法、装置、网络设备及中继终端
WO2022218020A1 (zh) 一种报文传输方法及装置
US20230262827A1 (en) Communication method applied to integrated access and backhaul iab system and related device
US20230225008A1 (en) Change of multicast and broadcast services radio bearer identifiers during multicast and broadcast service mobility
WO2023221821A1 (zh) 多cu连接管理方法、装置及相关设备

Legal Events

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

Ref document number: 18867985

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2018867985

Country of ref document: EP

Effective date: 20200519