CN110536477A

CN110536477A - Connection method, device, the network equipment and storage medium

Info

Publication number: CN110536477A
Application number: CN201910267440.6A
Authority: CN
Inventors: 杨立; 马子江; 方建民; 黄河
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2019-12-03
Anticipated expiration: 2039-04-03
Also published as: CN110536477B; WO2020200261A1

Abstract

The application proposes connection method, device, the network equipment and storage medium.Wherein, the connection method includes: to send the first instruction message to target prothetic group station, it include the first instruction information that specified operation is executed to the auxiliary connection between target prothetic group station and target terminal in first instruction message, the specified operation includes being directed to the auxiliary establishment of connection, addition, modification, deletion or release；The first response message from target prothetic group station is received, includes the first result information corresponding with the first instruction information in first response message.The embodiment of the present application can directly indicate that target prothetic group station executes specified operation to the auxiliary connection between target prothetic group station and target terminal, be conducive to the flexibility for improving multi-connection operation.

Description

Connection method, device, the network equipment and storage medium

Technical field

This application involves the communications fields, and in particular to connection method, device, the network equipment and storage medium.

Background technique

3GPP forth generation continental rise (4Generation, 4G) or LTE (Long Term Evolution, E long term evolution) It include: 4G core net EPC (Evolved Packet Core, evolution block core net) and RAN in cellular mobile telecommunications system (Radio Access Network, Radio Access Network).Wherein 4G EPC includes: MME (Mobility Management Entity, mobile management entity node), SGW (Serving Gateway, service gateway nodes), PGW (PDN Gateway, PDN Gateway node) etc. basic network element node.4G RAN includes: eNB (evolved Node B, Long-Term Evolution base station) and crowd Interface connection between more base stations.

In the 5th generation continental rise 5G cellular mobile telecommunications system after 4G, including 5GC (5Generation Core, the 5th For core net) and NG-RAN (Next Generation Radio Access Network, Next-Generation enter network).Its Middle 5GC includes: AMF (Access Mobility Function accesses locomotive function) node, SMF (Session Management Function, conversation management functional) node and UPF (User Plane Function, user plane functions) section The network elements nodes such as point.It is included at least in NG-RAN: two different RAT (Radio Access Technology, wireless access Technology) system types base station, it may be assumed that based on 4G eNB continue enhance evolution ng-eNB and completely new physical layer eat dishes without rice or wine design The base station gNB.It further include the interface between base station and related network elements entity in NG-RAN.Wherein, ng-eNB eats dishes without rice or wine still to support E- UTRA (evolved Universal Terrestrial Radio Access, Evolved Universal Terrestrial wireless access) RAT system Formula, gNB eat dishes without rice or wine to support NR (New Radio, new wireless) RAT standard.

UE with access net multiple base stations connect simultaneously carry out data transmission in the case where, need to rely on master base station and core Xn interface between the interface of heart net and major-minor base station carries out the interaction of various double multi-connection operation relevant informations.But have In a little situations, the connection of Xn interface is not fixed and robustness is not relatively high, be easy to cause multi-connection unstable or can not be configured to grasp Situations such as making.

Summary of the invention

In order to solve at least one above-mentioned technical problem, the embodiment of the present application provides following scheme.

The embodiment of the present application provides a kind of connection method, comprising:

Send the first instruction message to target prothetic group station, include in first instruction message to target prothetic group station with Auxiliary connection between target terminal executes the first instruction information of specified operation, and the specified operation includes being directed to the auxiliary connection Foundation, addition, modification, deletion or release；

The first response message from target prothetic group station is received, includes and described first in first response message Indicate corresponding first result information of information.

Receive the first instruction message from core network element, include in first instruction message to target prothetic group station with Auxiliary connection between target terminal executes the first instruction information of specified operation, and the specified operation includes being directed to the auxiliary connection Foundation, addition, modification, deletion or release；

The specified operation is executed to the auxiliary connection between target prothetic group station and the target terminal；

The first response message is sent to the core network element, includes in first response message and first instruction Corresponding first result information of message.

The embodiment of the present application provides a kind of attachment device, comprising:

First sending module is used to send the first instruction message to target prothetic group station, includes in first instruction message The first instruction information of specified operation, the specified operation are executed to the auxiliary connection between target prothetic group station and target terminal Including foundation, addition, modification or deletion；

First receiving module, for receiving the first response message from target prothetic group station, first response disappears It include the first result information corresponding with the first instruction information in breath.

5th receiving module, for receiving the first instruction message from core network element, in first instruction message The first instruction information including executing specified operation to the auxiliary connection between target prothetic group station and target terminal, the specified operation Including foundation, addition, modification or deletion；

Execution module, for executing the specified behaviour to the auxiliary connection between target prothetic group station and the target terminal Make；

5th sending module, for sending the first response message to the core network element, in first response message Including the first result information corresponding with first instruction message.

The embodiment of the present application provides a kind of network equipment, and the network equipment includes: processor and memory；

The memory is for storing instruction；

The processor is configured to reading described instruction to execute the described in any item methods of the embodiment of the present application.

The embodiment of the present application provides a kind of storage medium, and the storage medium is stored with computer program, the computer The embodiment of the present application described in any item methods are realized when program is executed by processor.

The embodiment of the present application can directly indicate target prothetic group station to auxiliary between target prothetic group station and target terminal Connection executes specified operation, is conducive to the flexibility for improving multi-connection operation.

About the above embodiments of the application and other in terms of and its implementation, in Detailed description of the invention, specific embodiment party More explanations are provided in formula and claim.

Detailed description of the invention

Fig. 1 is the architecture diagram of the base station gathering NG-RAN.

Fig. 2 is the schematic diagram of the heterogeneous network of the macro picocell deployment of different RAT standards.

Fig. 3 is the schematic diagram of MN master control UE dual link operation.

Fig. 4 a and Fig. 4 b are the schematic diagram that UE is in dual link mode.

Fig. 5 a and Fig. 5 b are the schematic diagram of satellite base station serving cell covering variation.

Fig. 6 is that satellite base station feeding link establishes the schematic diagram maintained.

Fig. 7 is the flow diagram for the connection method that one embodiment of the application provides.

Fig. 8 is the flow diagram for the connection method that another embodiment of the application provides.

Fig. 9 is the flow diagram for the connection method that another embodiment of the application provides.

Figure 10 is the flow diagram for the connection method that another embodiment of the application provides.

Figure 11 is the flow diagram for the connection method that another embodiment of the application provides.

Figure 12 is the flow diagram for the connection method that another embodiment of the application provides.

Figure 13 is the architecture diagram that 5GC master control UE carries out dual link data transfer operation.

Figure 14 a is UE and satellite base station and earth station's dual link using exemplary schematic diagram.

Figure 14 b is the schematic diagram that MN initiates addition process.

Figure 15 a is UE and satellite base station and earth station's dual link using exemplary schematic diagram.

Figure 15 b is the schematic diagram that MN initiates modification process.

Figure 16 a is UE and satellite base station and earth station's dual link using exemplary schematic diagram.

Figure 16 b is that MN initiates to delete the schematic diagram of process.

Figure 17 a is UE and satellite base station and earth station's dual link using exemplary schematic diagram.

Figure 17 b is the schematic diagram that 5GC initiates addition process.

Figure 18 a is UE and satellite base station and earth station's dual link using exemplary schematic diagram.

Figure 18 b is the schematic diagram that SN initiates modification process.

Figure 19 is the structural schematic diagram for the attachment device that one embodiment of the application provides.

Figure 20 is the structural schematic diagram for the attachment device that another embodiment of the application provides.

Figure 21 is the structural schematic diagram for the attachment device that another embodiment of the application provides.

Figure 22 is the structural schematic diagram for the attachment device that another embodiment of the application provides.

Figure 23 is the structural schematic diagram of the network equipment provided by the embodiments of the present application.

Figure 24 is the structural schematic diagram of the network equipment provided by the embodiments of the present application.

Figure 25 is communication system architecture schematic diagram provided by the embodiments of the present application.

Specific embodiment

For the purposes, technical schemes and advantages of the application are more clearly understood, below in conjunction with attached drawing to the application Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application Feature can mutual any combination.

Fig. 1 is the architecture diagram of the base station gathering (Aggregated) NG-RAN.As shown in Figure 1, numerous base stations NG-RAN (example Such as gNB or ng-eNB) it is connected with each other by standardized NG interface and 5GC.E.g., including NG-C control plane (signaling) connection It is connected with NG-U user face (user data).Between the base station NG-RAN (gNB or ng-eNB) by Xn interface be connected with each other (including The connection of Xn-C control plane is connected with Xn-U user face).The control plane connection of above-mentioned interface is used for transmission the control between network element node Signaling message processed, as NGAP (Next Generation Application Protocol, next-generation application protocol), XnAP are assisted Discuss process messages.The connection of user face is used for transmission user service data (packet/frame/block) etc..NGAP, XnAP are respectively NG-C, Xn- C control plane logical network application layer protocol carries transmission (SCTP connection) based on lower layer to transmit the letter of the control on corresponding interface Enable process messages.NG-U, Xn-U interface in the user plane user service data, based on lower layer carry transmission (such as the tunnel GTP-U) come Transmit the user service data on corresponding interface.It the base station NG-RAN and is eated dishes without rice or wine between service terminal UE by Uu (i.e. wireless empty Middle interface) it is connected with each other.Uu eats dishes without rice or wine to include a plurality of control plane Signaling Radio Bearer SRB (the Signaling Radio that eats dishes without rice or wine ) and a plurality of user face data radio bearer DRB that eats dishes without rice or wine (Data Radio Bearer) Bearer.

In traditional continental rise ground cellular mobile system, once the deployment site of various base stations determines, relative to ground The physical location of specific longitude and latitude is all opposing stationary and fixed.Therefore it eats dishes without rice or wine provided by each base station NG-RAN The configuration and supply of wireless coverage/capacity (Coverage and Capacity) of Uu serving cell (Serving Cell), with And NG, Xn interface instance for connecting these NG-RAN adjacent base stations etc., it is also all that relative physical location is changeless.Such as: The carrying transmission of the interfaces such as NG, Xn connection is all largely that realization, therefore net are removed by the fixed networks transmission mode such as broadband optical fiber Robustness, time delay, signaling and the data transmission efficiency etc. of network side interface connection are all relatively good.It is this relatively quiet Only fixed continental rise ground cellular mobile network, convenient for the planning deployment of operator and RRM (Radio Resource Management, wireless resource management).As shown in Fig. 2, in the big network of isomery of macro micro services cell mixed deployment, it may There is different RAT standards, different carrier frequency points and bandwidth of operation, the various types base station of different radio covering power, such as: 4G Legacy eNB, 5G gNB, ng-eNB, WLAN AP (Wireless Local Area Networks Access Point, nothing Line LAP LAN Access Point) etc. network elements node, they are able to carry out interactive operation each other.

5G system supports terminal UE to be in SC (Single Connectivity, single connection) and DC/MC (Dual/ Multiple Connectivity, double/multi-connection) operating mode.Wherein, multi-connection is that the logical dimension of dual link is expanded, under Based on face will be described with dual link DC.Under SC single connection operating mode, UE eat dishes without rice or wine Uu and network side only have a signaling or Data transmission channel, referred to as Radio Link RL (Radio Link).DC/MC it is bis-/multi-connection operating mode under, UE eating dishes without rice or wine and Network side has the signaling or data transmission channel of two or the above number, i.e., a plurality of relatively independent RL.In NG-RAN master control Under RRC (Radio Resource Control, the wireless heterogeneous networks) control of anchor point master base station, a plurality of space interface signaling is wirelessly held Carrying SRB and Data Radio Bearer DRB can be configured and use on above-mentioned double/a plurality of RL.As shown in figure 3, in some specific object It manages in region, MN (Master Node, master base station) generally provides for wireless macro covering.In hot localised points or the area of weak covering Domain, numerous SN (Secondary Node, prothetic group station) are used to provide wireless micro- covering of enhancing, to promote honeycomb heterogeneous network Overall wireless capacity and performance.

MR-DC (Multi-Radio Dual Connectivity, the how wireless dual link) work supported with 5G related protocol For operation mode, towards particular terminal UE object, when the overlapping that UE is in MN main serving cell and SN auxiliary serving cell simultaneously is covered When in cover area, NG-C with NG-U interface is had under the master control of master base station MN, between MN and 5GC and is connected, MN and SN it Between have Xn-C with Xn-U interface and connect, but can only have NG-U connection between SN and 5GC.Therefore UE enters, exits and in doubly-linked All basic operations within operating mode are connect, are all completed by master base station MN master control.Master base station MN is directed to based on UE and is eated dishes without rice or wine not The RRM measurement of disconnected variation radio condition reports and the RRM algorithm condition etc. of master base station local itself, master control and decision MN Resource coordinatings such as dual connection configuration, working condition, wireless transmission between 5GC, SN, UE etc..It is big between SN and 5GC, UE Control plane operation in part is all connected by Xn-C interface, is forwarded by MN node to complete.In figs. 4 a and 4b, it is represented by dashed line Control plane connection between network element node indicates that the user face between network element node connects with chain-dotted line.Fig. 4 a is SN termination (Terminated) bearer types focus between network element node M N/SN and UPF node (can abbreviation UPF), there is the following two kinds NG-U interface data transmission channel.The first channel is the data transmission channel between UPF and MN that NG-U (MN) is provided, is used for Transmit the side MN PDU (Protocol Data Unit, protocol Data Unit) Session (session)/QoS (Quality of Service, service quality) the uplink and downlink data packet that carries on Flows (stream).The foundation in this channel needs UPF to provide the " side MN Transmitting uplink data channel address " and MN provide " side MN downlink data transmission channel address ".Similarly, second of channel is The data transmission channel between UPF and SN that NG-U (SN) is provided, is used for transmission on the PDU Session/QoS Flows of the side SN and holds The uplink and downlink data packet of load.The foundation in this channel needs UPF to provide " side SN transmitting uplink data channel address " and SN offer " side SN downlink data transmission channel address ".For SN Terminated bearer types, without establishing and safeguarding between MN and SN Xn-U interface bearing, because all user service data stream is independent occur between UPF and each major-minor base station.Fig. 4 b It for MN Terminated bearer types, focuses between MN and UPF, there is a kind of following NG-U interface data transmission channel: NG-U (MN) data transmission channel between UPF and MN is provided.But there is no NG-U interface data transmission channel between SN and UPF.With Fig. 4 a is compared, and Fig. 4 b does not have the channel any NG-U (SN).For MN Terminated bearer types, in order to use the side SN without Line resource auxiliary transmission needs to establish and safeguard Xn-U carrying between MN and SN, because all user service data stream needs to occur Between MN and SN.In short, double/multi-connection the operation supported, it is necessary to rely on the Xn-C interface between MN and SN, participate in Multiple major-minor base stations of double/multi-connection operation are dependent on it, carry out resource distribution and the collaboration of working condition and update to each other.

With the appearance of all kinds of packaged type base stations or network element node, such as: ground on-vehicle mobile base station, it is aerial nobody Machine base station, satellite base station etc., the wireless coverage/capacity supply for serving cell of eating dishes without rice or wine provided by these mobile base stations, lead to Often can constantly it change as the physical location of mobile base station is mobile.These variations or period are regular or without any rule Rule.The NG of these mobile base stations is connected, the carrying transmission of the interfaces such as Xn can not be the fixed fixed network transmission mode of tradition again. Therefore, it is impossible to go carrying to transmit by the fixed networks mode such as broadband optical fiber, radio bearer mode is generally relied on, such as: microwave, laser Relaying technique means.This cellular mobile network being built by numerous mobile base stations, although more clever in terms of deployment (without fixed site resource) living, but the carrying transmission between Internet resources and network element node can only be by way of relative dynamic Go planning and management update.Otherwise with the movement of each base station or network element node, network topology or environmental condition can be constantly It changes, the connection of old network element interface and configuration originally may fail, and new network element interface connects and configured with wait establish And maintenance.As shown in figure 5 a and 5b: having the satellite base station Moving node1/2/3/4 ... of several space-baseds, each From particular coverage to the ground in the air, a satellite service wave beam Beam is provided, ground service cell 1/2/3/4 is respectively formed It is " small elliptical " covering.But as these satellite base stations are collectively moved to the left along track, the ground of each offer The covering of serving cell 1/2/3/4 ... also with satellite base station together to the left, continuously or great-jump-forward it is mobile.Hypothetically There are also a master base station MN to provide " big elliptical " wireless coverage simultaneously in face, then the main difference with Fig. 3 is: satellite base The relative positional relationship stood between " small ellipse " covering provided and " big oval " covering of the ground base station MN offer can be dynamically Variation.In addition, more stable Xn interface connection may also can not be established between satellite base station and ground base station, otherwise need not stop Xn interface establishment of connection, deletion, foundation, deletion ... are carried out, to need to be continuously updated and safeguard.

The Radio Link of this section of terminal UE and satellite base station is commonly referred to as Service link (service link), it towards The UE serviced, directly carry 5G NR Uu eat dishes without rice or wine on user service data and RRC signaling.From single user's terminal UE Angle sees that original place position is motionless even if UE is in, but with the continuous movement of satellite base station, the Service link of UE can also be sent out Raw corresponding change.As shown in fig. 6, satellite base station and the Radio Link of service earth station are commonly referred to as Feeder link (feed Link), it is for further connecting the E2E between Service link and ground core network (End to End, end-to-end) even It connects, to realize the control signaling and user data transmission between UE and ground network.Wherein, services terrestrial station may include defending The collection such as star gateway station NTN-GW (Non-Terrestrial Networks Gateway, non-ground network gateway), core net Middle control network element node etc..Feeder link at least needs to provide the transmission function between satellite base station and ground core network 5GC Energy.If satellite base station is a complete gNB, Feeder link need to provide stable transmission service for NG interface, i.e., Reliably transmit NGAP control signaling process messages and NG-U user service data.Although satellite base station is moved at high speed always It is dynamic, but usually default their Feeder link between gateway station NTN-GW and can accomplish enough robusts.Therefore it can build Metastable NG interface connection example is found to be not necessarily to by way of ground, multiple NTN-GW transport layers route multi-hop and relaying The frequent updating maintenance for carrying out NG interface instance.In Fig. 6, when satellite base station Moving Node1 is from the administration of earth station 2 Region when being gradually moved to the left in the compass of competency of earth station 3, passes through the terrestrial transmission between earth station 2 and earth station 3 Relaying, can be remained unchanged with the NG interface instance between default satellite base station and ground core network anchor point network element.Therefore, it is not required to delete New NG interface connection is rebuild again except old NG interface connection, so in cycles.

The characteristics of above-mentioned terminal UE pair/multi-connection operation includes that major-minor base station physical position is fixed, Xn interface is connected and fixed And opposite good, MN master control of robust etc..Satellite base station is that the characteristics of mobile base station of representative maps out the work includes that satellite base station has Rule is moved along track periodically, the connection of Xn interface is not fixed and robustness is not relatively high.Comprehensive UE is bis-/and multi-connection operates The characteristics of and mobile base station the characteristics of mapping out the work, if UE need to be done between ground fixed base stations and mobile satellite base station Double/multi-connection operation (referred to as: air-ground double/multi-connection), due to that cannot rely on the Xn interface between major-minor base station, may rely on The NG interface of more stable state carries out relatively.

The application provides a kind of method for carrying out double/multi-connection data transfer operation by core net 5GC controlling terminal UE, It is not required to establish and safeguard the Xn interface connection (no Xn-C or Xn-U interface connection) between major-minor base station.Wherein, 5GC and major-minor base Station has NG interface independent to connect, while being connected by NG-C with NG-U interface.The relevant user plane bearer of the application with Unlike the SN Terminated bearer types of Fig. 4 a: also by independent NG-C interface between prothetic group station SN and AMF/SMF Connection, to realize 5GC to the direct resources configuration management of SN and work collaboration etc..

Fig. 7 is the flow diagram for the connection method that one embodiment of the application provides.This method can be applied to core net Side.As shown in fig. 7, this method may include:

Step S11, the first instruction message is sent to target prothetic group station, includes to the target in first instruction message Auxiliary connection between prothetic group station and target terminal executes the first instruction information of specified operation.The specified operation includes being directed to institute State auxiliary establishment of connection, addition, modification, deletion or release.

Step S12, receive the first response message from target prothetic group station, include in first response message with Described first indicates corresponding first result information of information.

In one embodiment, the specified operation to auxiliary connection can be initiated by core network element.Wherein, core net net Member such as 5GC can perceive target terminal and whether the wireless connection conditions of multiple access network elements such as base station become Change.The changed example of wireless connection of target terminal and multiple base stations may include: target terminal from single connection become with The connection of multiple base stations perhaps target terminal from connect the base station number for becoming single connection or target terminal connection with multiple base stations Mesh changes or the base station of target terminal connection changes and for example becomes to connect with base station A, C from connecting with base station A, B Deng.

It, can be to target prothetic group if 5GC perceives target terminal and the wireless connection conditions of multiple base stations change Stand send the first instruction message, thus to the auxiliary connection between target prothetic group station and target terminal execute foundation, addition, modification, The operation such as deletion or release.

After target prothetic group station receives the first instruction message, the auxiliary connection execution between target prothetic group station and target terminal is referred to Fixed operation.After target prothetic group station executes specified operation, the first response message can be sent to core network element, to notify core Whether the execution of the specified operation of network element succeeds.

The type and content of corresponding first instruction message of different operation scene and the first instruction information are introduced individually below.

Scene one: establishing or addition scene.

In this scenario, first instruction message can request message be established in base station supplemented by or the addition request of prothetic group station disappears Breath, the first instruction information includes that auxiliary concatenation ability and resource information can be used in the target terminal, and need to shunt To the user performance characteristic information at target prothetic group station.

Scene two: modification scene.

In this scenario, first instruction message can modify request message, the first instruction packet with prothetic group station The user performance characteristic information for needing to flow back into master base station from target prothetic group station is included, or is diverted to the use at target prothetic group station again Family service feature information.

Scene three: scene is deleted in release.

In this scenario, first instruction message can discharge (release) command messages with prothetic group station or prothetic group station is deleted Except (delete) command messages, the first instruction information includes remaining customer service spy on the target prothetic group station for needing to delete Reference breath.

In the embodiment of the present application, the whole Radio Link ability of UE can be divided into relatively independent multiple portions.The A part is main concatenation ability, and second part is one or more auxiliary concatenation abilities.For example, with the main connection energy of P-UE mark UE Power identifies auxiliary concatenation ability with S-UE.Specifically, can in UE it is various can shared attribute capability-object by spy Fixed ratio segmentation.Such as: RF (Radio Frequency, radio frequency) sharable to the inside UE and Anneta module group, power amplifier, The hardware classes resources such as Buffer (caching) resource, baseband processor are split.For another example, the frequency range that UE is supported combines (Band Combination) information, the software class resource such as load identification (RB id) are split.For another example, protocol class resource, coding are provided Source space etc. is split.

In the embodiment of the present application, the resource information of target terminal may include establishing auxiliary connection needs with target terminal to make Resource.For example, it is desired to which the customer service for shunting, flowing back or deleting is PDU session 1, then the resource information of target terminal can It can also include the control of S-NG interface connection relevant to prothetic group station to include radio resource relevant to the PDU session 1 Face, user face and transfer resource etc..

In the embodiment of the present application, indicate that the user performance characteristic information in information may include the mark letter of customer service Cease (such as: PDU Session id), carrying configuration information (such as: QoS Flow Level QoS Parameters), data forwarding Transmission channel address (such as: UP Data Forwarding TNL Info).For example, if necessary to shunt, flow back or delete Customer service be PDU session 1, then the identification information of customer service can be PDU Session1, and the carrying of customer service matches Confidence breath may include the relevant QoS configuration parameter of QoS Flows all in PDU Session1, and the transmission of data forwarding is logical Track address can do the PDU SessionTunnel tunnel address information of data forwarding for PDU Session1.

In one embodiment, after step s 12, this method can also include:

In the case where first result information indicates the specified successful situation of operation, Xiang Suoshu master base station sends the second instruction and disappears It ceases, includes first result information and main bind command corresponding with first result information in second instruction message Information.

Corresponding with above-mentioned scene, type and content the difference example of the second instruction message and the second instruction message are as follows:

Scene one: establishing or addition scene.

In this scenario, second instruction message can command messages be established in base station supplemented by or the addition order of prothetic group station disappears Breath, second instruction message may include that main concatenation ability and resource information can be used in the target terminal, and divided Flow to the user performance characteristic information at target prothetic group station.

For example, the first result information in the second instruction message may include target prothetic group establishing or adding in scene It stands and establishes auxiliary connection using the S-UE ability of UE and UE, be diverted to the users such as the PDU session at the target prothetic group station The characteristic information etc. of business.Main bind command information corresponding with the first result information may include UE it is current main connection can be used Ability and resource information.Second instruction message can indicate that master base station will be diverted to users' industry such as the PDU session at target prothetic group station The characteristic information of business is deleted from master base station, also can indicate that master base station establishes main company from using complete UE ability and resource and UE It connects, is updated to establish main connection using the P-UE ability and resource and UE of UE.

Scene two: modification scene.

In this scenario, second instruction message can modify command messages, second instruction message in base station supplemented by It may include that main concatenation ability and resource information can be used in the target terminal, the customer service for needing to flow back into master base station is special Reference breath, or it has been diverted to the user performance characteristic information at target prothetic group station.

For example, the first result information in the second instruction message may include needing to flow back into main base in modification scene Stand or be diverted to the characteristic information of the customer services such as the PDU session at the target prothetic group station.It is corresponding with the first result information Main bind command information may include UE it is current main concatenation ability and resource information can be used.Second instruction message can indicate to lead The characteristic information that base station will be diverted to the customer services such as the PDU session at target prothetic group station is deleted from master base station, and is added in master base station The characteristic information for the customer service for adding needs to flow back also can indicate that master base station utilizes the currently available P-UE ability and money of UE Source updates the main connection between UE.

Scene three: scene is deleted in release.

In this scenario, second instruction message base station release command message or prothetic group station delete command can disappear supplemented by Breath, second instruction message may include that main concatenation ability and resource information can be used in the target terminal, and need Flow back into remaining user performance characteristic information on the target prothetic group station of master base station.

For example, the first result information in the second instruction message may include needing to flow back discharging or deleting in scene The characteristic information of the customer services such as remaining PDU session on to the target prothetic group station of master base station.It is corresponding with the first result information Main bind command information may include UE it is current main concatenation ability and resource information can be used.Second instruction message can indicate The characteristic information of the customer services such as the PDU session deleted from the target prothetic group station flows back into master base station.If by all prothetic groups It stands release, the case where from multi-connection to single connection, the second instruction message can indicate that master base station re-uses complete UE ability Main connection is established with resource and UE.

In the embodiment of the present application, user performance characteristic information may include the identification information of customer service, carrying configuration Information, transmission channel address of data forwarding etc..For example, the user performance characteristic information in the first demand information includes user's industry The identification information of business.User performance characteristic information in first instruction information and second indication information includes the carrying of customer service Configuration information, transmission channel address of data forwarding etc..

The present embodiment can directly be indicated by core network element target prothetic group station to target prothetic group station and target terminal it Between auxiliary connection execute specified operation, without relying on interaction between base station, indicate that major-minor base station updates the main connection with target terminal, Be conducive to improve the flexibility of multi-connection operation.

Fig. 8 is the flow diagram for the connection method that another embodiment of the application provides.This method can be applied to core Net side.As shown in figure 8, this method may include:

Step S21, the first requirement message from master base station is received, first requirement message is that the master base station is being examined Measure the target terminal and multiple base stations wireless connection conditions change in the case where send, first demand disappears It include the first demand information that the specified operation is executed to the auxiliary connection in breath.Wherein, first demand information includes For the auxiliary establishment of connection, the demand information of addition, modification, deletion or release.

Step S22, the first instruction message is sent to target prothetic group station, includes to the target in first instruction message Auxiliary connection between prothetic group station and target terminal executes the first instruction information of specified operation.The specified operation includes being directed to institute State auxiliary establishment of connection, addition, modification, deletion or release.

Step S23, receive the first response message from target prothetic group station, include in first response message with Described first indicates corresponding first result information of information.

In one embodiment, the specified operation to auxiliary connection can be initiated by master base station.Master base station can perceive Whether target terminal and the wireless connection conditions of multiple access network elements such as base station change.Target terminal and multiple base stations The changed example of wireless connection may refer to the associated description of above-described embodiment.If master base station perceives target terminal It changes with the wireless connection conditions of multiple base stations, the first requirement message can be sent to core network element.By core net net Member sends the first instruction message to target prothetic group station.After target prothetic group station receives the first instruction message, to target prothetic group station and mesh Auxiliary connection between mark terminal executes the specified operations such as foundation, addition, modification, deletion or release.Target prothetic group station executes specified After operation, the first response message can be returned to core network element, whether to notify the specified execution operated of core network element Success.

The type and content of corresponding first requirement message of different operation scene are introduced individually below.

Scene one: establishing or addition scene.

In this scenario, requirement message or prothetic group station addition requirement message are established in base station supplemented by first requirement message, First requirement message includes needing to be diverted to the user performance characteristic information at target prothetic group station.

Scene two: modification scene.

In this scenario, requirement message is modified in base station supplemented by first requirement message, and first requirement message includes It needs to flow back into the user performance characteristic information of master base station, or is diverted to the user performance characteristic letter at target prothetic group station again Breath.

Scene three: scene is deleted in release.

In this scenario, requirement message is deleted at base station release requirement message or prothetic group station supplemented by first requirement message, First requirement message includes remaining user performance characteristic information on the target prothetic group station for needing to delete.

Correspondingly, the first instruction message in above-mentioned scene and the type and content of the first response message may refer to The associated description of embodiment is stated, this will not be repeated here.

In one embodiment, after step S23, this method can also include:

In the case where first result information indicates the specified successful situation of operation, Xiang Suoshu master base station sends the second instruction and disappears It ceases, includes first result information and main bind command corresponding with first result information in second instruction message Information.For example, executing foundations, addition, modification, deletion to auxiliary connection or discharging etc. in the successful situation of operations, 5GC can be to Master base station sends second indication information.The type and content of second instruction message may refer to the associated description of above-described embodiment, This will not be repeated here.

In the embodiment of the present application, user performance characteristic information may include the identification information of customer service, carrying configuration Information, transmission channel address of data forwarding etc..For example, the user performance characteristic information in the second demand information includes user's industry The identification information of business.User performance characteristic information in first instruction information and second indication information includes the carrying of customer service Configuration information, transmission channel address of data forwarding etc..

The present embodiment can directly indicate target prothetic group station after receiving the demand information of master base station by core network element Specified operation is executed to the auxiliary connection between target prothetic group station and target terminal, indicates that major-minor base station updates the master with target terminal Connection is conducive to the flexibility for improving multi-connection operation without relying on interaction between base station.

Fig. 9 is the flow diagram for the connection method that another embodiment of the application provides.This method can be applied to core Net side.As shown in figure 9, this method may include:

Step S31, the second requirement message from target prothetic group station is received, second requirement message is that the target is auxiliary What base station was sent in the case where the wireless connection conditions for detecting the target terminal and multiple base stations change, described the It include the second demand information that the specified operation is executed to the auxiliary connection, the second demand information packet in two requirement messages Include the demand information of modification, deletion or the release for auxiliary connection.

Step S32, third instruction message is sent to master base station, includes and second demand in the third instruction message The corresponding main bind command information of information.

Step S33, receive the second response message from the master base station, include in second response message with it is described Corresponding second result information of main bind command information.

Step S34, the first instruction message is sent to target prothetic group station, includes to the target in first instruction message Auxiliary connection between prothetic group station and target terminal executes the first instruction information of specified operation.The specified operation includes being directed to institute State the modification, deletion or release of auxiliary connection.

Step S35, receive the first response message from target prothetic group station, include in first response message with Described first indicates corresponding first result information of information.

In the present embodiment, the specified operation to auxiliary connection can be initiated by prothetic group station.Prothetic group station can perceive target Whether terminal and the wireless connection conditions of multiple access network elements such as base station change.The nothing of target terminal and multiple base stations Line, which connects changed example, may refer to the associated description of above-described embodiment.If target prothetic group station perceives target terminal It changes with the wireless connection conditions of multiple base stations, the second demand information can be sent to core network element.Core network element After receiving the second demand information, third instruction message can be sent to master base station.Master base station is according to third instruction message to itself Customer service and it is main connection be updated after, to core network element return the second response message.Core network element receives second After response message, the first instruction message can be sent to target prothetic group station.It, can be with after target prothetic group station receives the first instruction message The specified operations such as modification, deletion or release are executed to the auxiliary connection between target prothetic group station and target terminal.It holds at target prothetic group station After the specified operation of row, the first response message can be returned to core network element, to notify holding for the specified operation of core network element Whether row succeeds.

The type and content of corresponding second requirement message of different operation scene are introduced individually below.

Scene one: modification scene.

In this scenario, second requirement message can modify requirement message, second demand information in base station supplemented by User performance characteristic information including needing to flow back into master base station.

Request message is modified in base station supplemented by the third instruction message, and the third instruction message includes the target terminal In main concatenation ability and resource information can be used, need to flow back into the user performance characteristic information of master base station.

Command messages are modified in base station supplemented by the first instruction information, include that the target is whole in first instruction message Auxiliary concatenation ability and resource information can be used in end, and flowed back into the user performance characteristic information of master base station.

In this scenario, if target prothetic group station, which sends prothetic group station to core network element, modifies requirement message.Core net net After member receives prothetic group station modification requirement message, prothetic group station can be sent to master base station and modify request message.Master base station is according to prothetic group After modification request message of standing is updated the customer service of itself and main connection, the second response is returned to core network element and is disappeared Breath.After core network element receives the second response message, prothetic group station can be sent to target prothetic group station and modify command messages.Target is auxiliary Base station receives prothetic group station modification command messages, the auxiliary connection between modification and target terminal, and can return to core network element First response message.

Scene two: scene is deleted in release.

In this scenario, requirement message is deleted at base station release requirement message or prothetic group station supplemented by second requirement message, Second demand information includes remaining user performance characteristic information on the target prothetic group station for needing to delete.The third instruction Base station release command message or prothetic group station delete command message, the third instruction message include the target terminal supplemented by message In main concatenation ability and resource information can be used, need to flow back into remaining user performance characteristic on the target prothetic group station of master base station Information.Base station release command message or prothetic group station delete command message supplemented by the first instruction information, first instruction disappear Remaining user performance characteristic information on the target prothetic group station for needing to delete in breath.

In this scenario, if target prothetic group station sends prothetic group station release requirement message to core network element or prothetic group station is deleted Except requirement message.It, can be to main base after core network element receives prothetic group station release requirement message or prothetic group station deletion requirement message It stands and sends prothetic group station release command message or prothetic group station delete command message.Master base station is according to prothetic group station release command message or auxiliary After base station delete command message is updated the customer service of itself and main connection, the second response is returned to core network element and is disappeared Breath.After core network element receives the second response message, prothetic group station release command message or prothetic group can be sent to target prothetic group station It stands delete command message.After target prothetic group station receives prothetic group station release command message or prothetic group station delete command message, deleting should Auxiliary connection between target prothetic group station and target terminal returns to the first response message to core network element, and can discharge or delete Except target prothetic group station.

The present embodiment can directly indicate that target is auxiliary by core network element after the demand information for receiving target prothetic group station Base station executes specified operation to the auxiliary connection between target prothetic group station and target terminal, indicates major-minor base station update and target terminal Main connection be conducive to the flexibility for improving multi-connection operation without relying on interaction between base station.

Figure 10 is the flow diagram for the connection method that another embodiment of the application provides.This method can be applied to access Net side.As shown in Figure 10, this method may include:

Step S41, the first instruction message from core network element is received, includes to target in first instruction message Auxiliary connection between prothetic group station and target terminal executes the first instruction information of specified operation.The specified operation includes being directed to institute State auxiliary establishment of connection, addition, modification, deletion or release.

Step S42, the specified operation is executed to the auxiliary connection between target prothetic group station and the target terminal.

Step S43, Xiang Suoshu core network element sends the first response message, include in first response message with it is described Corresponding first result information of first instruction message.

In one embodiment, the specified operation to auxiliary connection can be initiated by core network element.Wherein, core net net Member such as 5GC can perceive target terminal and whether the wireless connection conditions of multiple access network elements such as base station become Change.The changed example of the wireless connection of target terminal and multiple base stations may refer to the associated description of above-described embodiment.Such as Fruit 5GC perceives target terminal and the wireless connection conditions of multiple base stations change, and can send first to target prothetic group station Instruction message.After target prothetic group station receives the first instruction message, to the auxiliary connection between target prothetic group station and target terminal Execute the specified operations such as foundation, addition, modification, deletion or release.It, can be to core after target prothetic group station executes specified operation Network element sends the first response message, to notify whether the execution of the specified operation of core network element succeeds.

Scene one: establishing or addition scene.

In this scenario, first instruction message can request message be established in base station supplemented by or the addition request of prothetic group station disappears Breath, the first instruction information may include that auxiliary concatenation ability and resource information can be used in the target terminal, and need It is diverted to the user performance characteristic information at target prothetic group station.

Scene two: modification scene.

In this scenario, first instruction message can modify request message, the first instruction information in base station supplemented by It may include the user performance characteristic information for needing to flow back into master base station from target prothetic group station, or be diverted to target prothetic group again The user performance characteristic information stood.

Scene three: scene is deleted in release.

In this scenario, first instruction message base station release command message or prothetic group station delete command can disappear supplemented by Breath, the first instruction information may include remaining user performance characteristic information on the target prothetic group station for needing to delete.

Scene one: establishing or addition scene.

Scene two: modification scene.

Scene three: scene is deleted in release.

In one embodiment, after step S43, this method can also include: to receive from the core net net Second instruction message of member, second instruction message are to indicate specified in first result information in the core network element Operate and sent in successful situation, include in second instruction message first result information and with first result The corresponding main bind command information of information.

Specifically, it is operated successfully if the first result information indicates specified, core network element can be sent out to master base station Send the second instruction message.After master base station receives the second instruction message, the main connection between master base station and target terminal can be updated.

First instruction message of the embodiment of the present embodiment and Fig. 7, the first instruction information, the first response message, second refer to Show that the type of message etc. is identical with content, may refer to the associated description of the embodiment, this will not be repeated here.

Figure 11 is the flow diagram for the connection method that another embodiment of the application provides.This method can be applied to access Net side.As shown in figure 11, this method may include:

Step S51, in the case where detecting that the wireless connection conditions of the target terminal and multiple base stations change, The first requirement message is sent to the core network element, includes that the finger is executed to the auxiliary connection in first requirement message Surely the first demand information operated, first requirement message include being directed to the auxiliary establishment of connection, addition, modification, deletion Or the demand of release.

Step S52, the first instruction message from core network element is received, includes to target in first instruction message Auxiliary connection between prothetic group station and target terminal executes the first instruction information of specified operation, and the specified operation includes being directed to institute State auxiliary establishment of connection, addition, modification, deletion or release.

Step S53, the specified operation is executed to the auxiliary connection between target prothetic group station and the target terminal.

Step S54, Xiang Suoshu core network element sends the first response message, include in first response message with it is described Corresponding first result information of first instruction message.

Scene one: establishing or addition scene.

Scene two: modification scene.

Scene three: scene is deleted in release.

In one embodiment, after step S54, this method can also include: to receive from the core net net Second instruction message of member, second instruction message are to indicate specified in first result information in the core network element Operate and sent in successful situation, include in second instruction message first result information and with first result The corresponding main bind command information of information.

First requirement message of the embodiment of the present embodiment and Fig. 8, the first demand information, the first instruction message, the first finger Show that the type of information, the first response message, second instruction message etc. is identical with content, the correlation that may refer to the embodiment is retouched It states, this will not be repeated here.

Figure 12 is the flow diagram for the connection method that another embodiment of the application provides.This method can be applied to access Net side.As shown in figure 12, this method may include:

Step S61, in the case where detecting that the wireless connection conditions of the target terminal and multiple base stations change, The second requirement message is sent to the core network element, includes that the finger is executed to the auxiliary connection in second requirement message Surely the second demand information operated.Second demand information includes the need for modification, deletion or the release of the auxiliary connection It asks.

Step S62, receive the third instruction message from the core network element, include in the third instruction message with The corresponding main bind command information of second demand information.

Step S63, Xiang Suoshu core network element sends the second response message, include in second response message with it is described Corresponding second result information of main bind command information.

Step S64, the first instruction message from core network element is received, includes to target in first instruction message Auxiliary connection between prothetic group station and target terminal executes the first instruction information of specified operation.The specified operation includes being directed to institute State the modification, deletion or release of auxiliary connection.

Step S65, the specified operation is executed to the auxiliary connection between target prothetic group station and the target terminal.

Step S66, Xiang Suoshu core network element sends the first response message, include in first response message with it is described Corresponding first result information of first instruction message.

In the present embodiment, the specified operation to auxiliary connection can be initiated by prothetic group station.Prothetic group station can perceive target Whether terminal and the wireless connection conditions of multiple access network elements such as base station change.The nothing of target terminal and multiple base stations Line, which connects changed example, may refer to the associated description of above-described embodiment.If target prothetic group station perceives target terminal It changes with the wireless connection conditions of multiple base stations, the second demand information can be sent to core network element.Core network element After receiving the second demand information, third instruction message can be sent to master base station.It, can be with after master base station receives third instruction message After being updated according to third instruction message to the customer service of itself and main connection, the second response is returned to core network element and is disappeared Breath.After core network element receives the second response message, the first instruction message can be sent to target prothetic group station.It receives at target prothetic group station To after the first instruction message, modification can be executed to the auxiliary connection between target prothetic group station and target terminal, deletes or discharges etc. Specified operation.After target prothetic group station executes specified operation, the first response message can be returned to core network element, to notify core Whether the execution of the specified operation of heart network element succeeds.

Scene one: modification scene.

In this scenario, requirement message is modified in base station supplemented by second requirement message, and second demand information includes Need to flow back into the user performance characteristic information of master base station.Request message is modified in base station supplemented by the third instruction message, described Third instruction message includes that main concatenation ability and resource information can be used in the target terminal, needs to flow back into the use of master base station Family service feature information.Command messages are modified in base station supplemented by the first instruction information, include institute in first instruction message Stating in target terminal can be used auxiliary concatenation ability and resource information, and flow back into the user performance characteristic information of master base station.

Scene two: scene is deleted in release.

Second requirement message of the embodiment of the present embodiment and Fig. 9, the second demand information, third instruction message, the second sound Answer the type of information, the first instruction message, the first instruction information, the first response message, second instruction message etc. identical with content, It may refer to the associated description of the embodiment, this will not be repeated here.

In the corresponding embodiment of Figure 10, Figure 11 and Figure 12, newly-built or add in scene, to target prothetic group station with Auxiliary connection between the target terminal executes the specified operation, comprising: auxiliary connection can be used according in the target terminal Ability and resource information, and need to be diverted to the user performance characteristic information at target prothetic group station, it establishes and the target terminal Auxiliary connection, the customer service is diverted to target prothetic group station so that target prothetic group station continue carrying transmission.

In modification scene, the specified behaviour is executed to the auxiliary connection between target prothetic group station and the target terminal Make, comprising: the customer service for needing to flow back is carried into transfer resource and is deleted from target prothetic group station, or user's industry to shunt again Business distribution new bearer transfer resource.

In deleting scene, the specified behaviour is executed to the auxiliary connection between target prothetic group station and the target terminal Make, comprising: remaining customer service is carried into transfer resource and is deleted from target prothetic group station, and discharges or delete the target prothetic group It stands.

It is application example of the application in dual link mode below, the principle of multi-connection mode is similar with dual link mode, The associated description of dual link mode can be referred to.

As shown in figure 13, the movement of target SN has predictable regularity.It is connect between target SN and MN without establishing Xn Mouth connection, but target SN can establish S-NG interface with 5GC and connect.5GC and MN can be speculated pre- by positioning and temporal information Know: which target SN when can be added as shunting prothetic group station.By the whole radio chains of certain terminal UE serviced by 5GS network Road ability (or wireless access capability UE Radio Access Capability) is divided into relatively independent two parts.Example Such as, it is indicated or is identified with P-UE and S-UE respectively.Wherein, the sum of each ability on the both sides P-UE and S-UE and Resource Properties etc. In the UE total capacity and resource.If UE connecting main base station and multiple prothetic group stations, Radio Link ability can divide simultaneously For P-UE and multiple S-UE.

Further, the segmentation of UE ability can be carried out according to predefined static mode (relatively-stationary segmentation)；It can also press Semi-statically divided according to the command mode of network side, the ability content specifically divided and major-minor side can be altered as desired Ratio.P-UE and S-UE ability may include for can shared attribute capability-object segmentation according to a specific ratio.Such as: inside UE Sharable RF (Radio Frequency, radio frequency) and Anneta module group, Buffer (caching) resource, baseband processor etc. are hard Part class resource, or the frequency range supported combine (Band Combination) information, the software class resource such as load identification (RB id). The ability of P-UE and S-UE segmentation also may include the segmentation for unshared attribute ability.As: for supporting multimode ability UE, certain corresponding resource of RAT standard all give P-UE, and the corresponding resource of other RAT standards all gives S-UE, they it Between be not the above-mentioned relationship divided in proportion.

Further, UE " is divided " by ability and in certain observation or operating time window, two is showed to external enwergy Relatively independent " virtual subnet UE ".Their own wireless capability set can be felt by major-minor base station MN/SN and core net 5GC Know and utilizes.Wherein, the state and mobility of P-UE indicates the RRC state and mobility of UE entirety；S-UE mainly provides use The auxiliary diverter function of family face data transmission, does not influence the whole control plane attribute and RRC state of the UE.

Before UE enters dual link operating mode, master base station (MN), and can using whole Radio Link abilities of UE It is reported to 5GC in advance by NGAP process messages.The information of the P-UE and S-UE ability partitioning scheme of later, example is such as Under:

Option 1:P-UE x+S-UE y；

Option 2:P-UE m+S-UE n

……；

Option x:P-UE k+S-UE h

5GC receives and saves the information of above-mentioned P-UE and S-UE ability partitioning scheme, and subsequent progress dual link operation is spare.

The initiation mode of several auxiliary connection relevant operations is introduced individually below.

First way: MN is initiated.

Master base station MN can speculate precognition by positioning and temporal information: it is auxiliary as shunting which target SN when can be added Base station SN, i.e. target SN have the condition that dual link operation is done with MN.Therefore network side SN can be established, be added, Operation, the RRM measurements without relying on UE such as modification, deletion or release report, and MN can be triggered to 5GC on demand in real time.

Further, master base station MN can request 5GC to carry out the foundation or addition of specific objective SN by NGAP process messages Operation.Such as: MN sends NGAP:SN Addition Required message to 5GC, holds including: target SN information and to SN It carries and shunts the current side the MN user service data information of falling, such as PDU Session/QoS Flows id (mark).

If 5GC agrees to enter dual link operating mode, 5GC can enter dual link work based on NGAP process messages instruction MN Operation mode.The Radio Link ability for the side P-UE that MN only utilizes 5GC to indicate later, does not recycle the Radio Link energy of the side S-UE Power.Such as: MN receives the NGAP process messages from 5GC: SN Addition Command message, wherein indicating that certain 5GC is selected P-UE x+S-UE y ability segmentation combination or relative index mark, and the customer service successfully shunted is received by target SN Data information, such as PDU Session/QoS Flows id mark.

After entering dual link operating mode, master base station MN and UE are established and are safeguarded P-RL (main Radio Link), simultaneously With 5GC there is the main control face P-NG-C to connect and connect example with P-NG-U primary user face, they are used to transmit the control letter of the side MN It enables and user service data, specific various operations is similar with the operation of UE single connection.

Further, master base station MN can also by NGAP process messages, request 5GC carry out for current goal SN modification, The operation such as deletion or release.Such as: MN sends NGAP:SN Modification Required message or SN Release to 5GC Required message, including target SN that is to be modified or deleting and relevant subscriber service data information.Similarly, if 5GC agrees to modification or exits dual link operating mode, and MN receives the NGAP process messages from 5GC: SN Modification Command or SN Release Command message, the target SN for having modified or having deleted and related use including 5GC confirmation Family service data information.

The second way: 5GC is initiated.

5GC is by positioning and temporal information, and can also speculate precognition: which target SN when administrative target MN can add As prothetic group station SN is shunted, i.e. target MN and SN has the condition for doing dual link operation in which section time window.Therefore 5GC can be led Dynamic triggering simultaneously determines that network side SN is established, addition, modification, deleted or discharge operation, may not need rely on master base station MN's at this time The request of NGAP upstream message.

Further, it established from master base station MN about target SN if 5GC is received, addition, modification, delete or discharge After operation requests, it can decide whether to enter, modify or exit dual link operating mode.

If 5GC determines to enter dual link operating mode, SN addition is sent to target SN by NGAP process messages and is asked It asks operation, and attempts to establish the auxiliary control plane connection of S-NG-C, the auxiliary user face connection example of S-NG-U and the auxiliary base station side of SN relevant Air-link resources.This, which depends on MN or 5GC, need to shunt how many UE user service datas to the side SN.Such as: 5GC is sent out to target SN NGAP process messages: SN Addition Request message are sent, originally belong to the side MN including what is established to SN shunting carrying User service data information, as PDU Session/QoS Flows id identify.Similarly, 5GC can also be sent to target SN NGAP process messages: SN Modification Request or SN Release Command message is modified including to SN Or the user service data information for the current side SN deleted, as PDU Session/QoS Flows id is identified.

The third mode: SN is initiated.

For target prothetic group station SN based on the NGAP process messages from 5GC, the auxiliary control plane connection of S-NG-C, S- are established in trial The auxiliary user face connection example of NG-U and the relevant air-link resources of the auxiliary base station side of SN, and replied to by NGAP process messages The result that the above-mentioned SN of 5GC is established.Such as: SN sends NGAP process messages: SN Addition Request to 5GC Acknowledge message, including the user service data information that success and failure are established, such as PDU Session/QoS Flows id mark and data forwarding Data Forwarding transmission channel address etc..Similarly, target prothetic group station SN is based on coming It from the NGAP process messages of 5GC, attempts to execute SN modification or deletes relevant operation, and reply to the above-mentioned modification of 5GC or deletion As a result.Such as: SN sends NGAP process messages: SN Modification Request Acknowledge or SN to 5GC Release Complete message.

After UE enters dual link operating mode, prothetic group station SN and UE are established and are safeguarded the auxiliary Radio Link of S-RL, simultaneously There is the auxiliary control plane of S-NG-C to connect with 5GC and connect example with the auxiliary user face S-NG-U, they are used to transmit the control letter of the side SN It enables and user service data, specific various operations is similar with the operation of current UE single connection.

Further, prothetic group station SN can carry out the modification and deletion of current SN by NGAP process messages, activly request 5GC Operation, such as: to 5GC, actively triggering sends NGAP process messages: SN Modification Required message or SN to SN Release Required message, including the user service data information for the current side SN modified or deleted to SN, such as PDU Session/QoS Flows id mark.

5GC can be realized according to inside, and without the SN Release Required message request of MN or SN, and oneself is actively Triggering decides whether to exit current dual link operating mode.If dual link operating mode is exited in 5GC decision, pass through NGAP Process messages are restored to single connection operating mode to target MN and SN order.MN can restore to utilize all wireless of entire UE later Link capability, such as: 5GC sends NGAP process messages: SN Release Command message to target MN and SN respectively.

After UE exits dual link operating mode, the auxiliary control plane connection of S-NG-C, the auxiliary user face S-NG-U connect example, Air-link resources relevant with the auxiliary base station side of SN can be all released, or temporarily retained but deactivated by SN prothetic group station and do not work.P- The connection of the main control face NG-C, P-NG-U primary user face connection example and the relevant air-link resources in MN master base station side all can quilts Reconfigure update.

The application provides a kind of method for carrying out double/multi-connection data transfer operation by core net (5GC) master control UE.It should Method is not required to establish or safeguard that the Xn interface between major-minor base station connects (such as can connect without any Xn-C or Xn-U interface), 5GC and major-minor base station need to establish and safeguard that NG interface independent connects (while establishing NG-C with NG-U interface and connecting). Network side manage UE it is bis-/multi-connection operating mode, without rely on UE be directed to target SN RRM measurement report, utilize the base of itself The prior informations such as position and time of standing firm (ephemeris information of such as satellite base station), can predict speculate done between target MN and SN it is double/more The conditional relationship of attended operation, thus go for greater flexibility management UE it is bis-/multi-connection operating mode.The application can support MN and SN The basic operation for respectively triggering certain double/multi-connections does final determination decisions and user service data by 5GC and shunts reflux Management.

The process of foundation or addition SN is initiated using example 1:MN.

As shown in figures 14a: in certain LEO low orbit satellite communication system, several LEO low orbit satellites are in specific near-earth ball rail On road.These satellites can be run around earth great circle periodically by scheduled ephemeris information.They carry complete gNB Base station functions (referred to as gNB type satellite), provide satellite radio access service for terrestrial user UEs.It is deployed on ground several A ground satellite station gateway (NTN-GW) entity, they are integrated in 5GC core network entity.Every LEO satellite relies on itself Stationkeeping ability can in time divide with ground one or more NTN-GW/5GC according to currently running physics longitude and latitude position Jian Li and one or more Feeder link not maintained to carry transmissions links, for carrying transmission NG interface connection example.Every LEO satellite can cover that (big oval in Figure 14 a, usual covering radius is far longer than ground to ground presumptive area project beams The covering of the serving cell of base station).With the movement of LEO satellite, the covering of these satellite beams is also in ground sliding and continental rise Terrestrial cellular covers (small ellipse in Figure 14 a) and forms alien frequencies overlapping covering.

As shown in fig. 14b, the process that MN initiates addition SN may comprise steps of:

S100:T1 moment, satellite base station A-gNB1 anchor point are connected on NTN-GW/5GC1, while ground base station MN also anchor Point is connected on identical NTN-GW/5GC1.MN and 5GC1 possesses the LEO LEO Satellite according to network management configuration information Ephemeris information.For example, which orbital position when which LEO satellite will run to, the corresponding wave beam ground of the satellite is covered Lid is probably in which region etc..Therefore, MN and 5GC1 can speculate and learn: within one section of observing time before and after T1, satellite base It stands the covered ground of A-gNB1 wave beam and the wireless coverage of master base station MN has certain overlapping, so as to carry out air-ground dual link Operation.Certain UE for being in connected state is serviced by master base station MN cell (small ellipse in Figure 14 a), and PDU session 1 has had been established (PDU Session1) is connected with the relevant radio resource of (PDU Session2) user service data of PDU session 2 with NG interface Transmission channel etc..The UE supports P-UE the and S-UE ability of the application to divide, and supported ability segmentation information is reported To MN and 5GC1.The local policy (such as: roaming safety or charging factor) of integrated cellular system, PDU are merged according to the world Session1 user service data can be carried by LEO satellite Radio Link and be transmitted.In the step s 100, MN can by terminal without Line capability report (UE RADIO CAPABILITY REPORT) message or terminal ability information indicate (UE CAPABILITY INFO INDICATION) message, the information of the P-UE and S-UE ability and division of resources that report and cooperate with UE to support.

S101:MN is according to the ephemeris information of LEO LEO Satellite, and the RRM measurement independent of UE reports, suitable Moment sends prothetic group station to 5GC1 and adds demand (SN ADDITION REQUIRED) message.It include request in the message current All QoS Flows are diverted to target prothetic group station SN-gNB1 just in the PDU Session1 of carrying service for the side MN.MN is simultaneously It can also suggest doing data forwarding (Data Forwarding) operation, to reduce the data packetloss in triage operator.Wherein, number It may include that the customer service that will need to shunt continues to be sent in the data packet that source node side residue is sent not successfully according to forward pass 5GC1。

S102:5GC1 receives the requirement message of MN, according to the ephemeris information of LEO LEO Satellite and system local plan Slightly, QoS Flows all in PDU Session1 can be diverted to target SN-gNB1 by judgement.5GC1 is sent to SN-gNB1 Prothetic group station addition request (SN ADDITION REQUEST) message.It include the notice available S- of target SN-gNB1 in the message UE ability requests to establish control plane, the use that PDU Session1 associated radio resource is connected with S-NG interface in the side SN-gNB1 Family face and transfer resource etc..

S103:SN-gNB1 receives the request message of 5GC1, carries out local resource admission control.If SN-gNB1 determines All related resources can be successfully established for PDU Session1, prothetic group station can be sent to 5GC1 and add response message such as prothetic group Addition of standing confirms (SN ADDITION REQUEST ACKNOWLEDGE) message.It include that notice 5GC1 is successfully built in the message Control plane, user face and the biography that the associated radio resource of the vertical side PDU Session1 and SN-gNB1 is connected with S-NG interface Defeated resource etc..SN-gNB1 can also provide the transport addresses information for being data forwarding (Data Forwarding) simultaneously, with reality The data forwarding operation now come from the side MN.

S104:5GC1 receives the confirmation message of SN-gNB1, learns that the side SN-gNB1 successfully shunts and establishes PDU Session1 can send prothetic group station addition order (SN ADDITION COMMAND) message to MN.It include notice in the message MN enters available P-UE ability and resource after dual link operation, and successfully shunts the side PDU Session1 to SN-gNB1 Result.Then MN can delete the control that the associated radio resource of original service PDU Session1 is connected with P-NG interface Face, user face and transfer resource etc..

After S104: by RRC reconfiguration message between MN and P-UE, establishing and safeguard P-RL Radio Link, hereafter Only transmit PDU Session2 user service data.By RRC reconfiguration message between SN-gNB1 and S-UE, establishes and safeguard Hereafter S-RL Radio Link only transmits PDU Session1 user service data.

Addition (ADDITION) in this application example otherwise referred to as establishes (CREATE).Correspondingly, related to addition Message, message relevant to establishing can also be revised as.Disappear for example, demand (SN CREATE REQUIRED) is established at prothetic group station Breath, prothetic group station establish request (SN CREATE REQUEST) message, confirmation (SN CREATE REQUEST is established at prothetic group station ACKNOWLEDGE) order (SN CREATE COMMAND) message etc. is established at message, prothetic group station.In following other application example It is similar situation, repeats no more.

The process of modification SN is initiated using example 2:MN.

As shown in fig. 15 a: in certain LEO low orbit satellite communication system, several LEO low orbit satellites are in specific near-earth ball rail On road.These satellites can be run around earth great circle periodically by scheduled ephemeris information.They carry complete gNB Base station functions (referred to as gNB type satellite), provide satellite radio access service for terrestrial user UEs.It is deployed on ground several A ground satellite station gateway NTN-GW entity, they are integrated in 5GC core network entity.Every LEO satellite relies on determining for itself Capability can in time be distinguished with ground one or more NTN-GW/5GC according to currently running physics longitude and latitude position It establishes and one or more Feeder link is maintained to carry transmissions links, for carrying transmission NG interface connection example.Every LEO satellite can cover that (big oval in Figure 15 a, usual covering radius is far longer than ground to ground presumptive area project beams The covering of the serving cell of base station).With the movement of LEO satellite, the covering of these satellite beams is also in ground sliding and continental rise Terrestrial cellular covers (small ellipse in Figure 15 a) and forms alien frequencies overlapping covering.

As illustrated in fig. 15b, the process that MN initiates modification SN may comprise steps of:

T2 moment after S200:T1, the satellite base station A-gNB1 still anchor point constantly moved are connected to NTN-GW/5GC1 On, while also anchor point is connected on identical NTN-GW/5GC1 ground base station MN.MN and 5GC1 is gathered around according to network management configuration information There is the ephemeris information of the LEO LEO Satellite.For example, which orbital position when which LEO satellite will run to, it should The corresponding wave beam covered ground of satellite is probably in which region.Therefore, MN and 5GC1 can speculate and learn: one section before and after T2 In observing time, the covered ground of satellite base station A-gNB1 wave beam and the wireless coverage of master base station MN have certain overlapping, thus It can continue to air-ground dual link operation.Certain has been in the UE of air-ground dual link operation just at the same time by master base station MN cell (small ellipse in Figure 15 a) and prothetic group station SN-gNB1 (big oval in Figure 15 a) are serviced, and respectively establish PDU Session2 Radio resource relevant with PDU Session1 user service data connects transmission channel etc. with NG interface.The UE supports the application The segmentation of P-UE and S-UE ability, and updated ability segmentation information is reported to MN and 5GC1.According to system local plan Slightly (such as: roaming safety or charging factor), the part QoS Flows user service data in PDU Session1 need to flow back into MN carrying transmission.In step s 200, MN can pass through terminal wireless capability report (UE RADIO CAPABILITY REPORT) message or terminal ability information indicate (UE CAPABILITY INFO INDICATION) message, report updated The information for the P-UE and S-UE ability segmentation that UE is supported.

S201:MN is according to the ephemeris information of LEO LEO Satellite, and the RRM measurement independent of UE reports, suitable Moment sends prothetic group station to 5GC1 and modifies demand (SN MODIFICATION REQUIRED) message.It include: request in the message Part QoS Flows of the current side SN-gNB1 just in the PDU Session1 of carrying service, which is flowed back into MN, goes carrying to transmit. MN can also suggest that doing data forwarding (Data Forwarding) operates, and can provide corresponding number in above-mentioned message simultaneously According to forward pass transport addresses information, to reduce the data packetloss in reflux operation.

S202:5GC1 receives the requirement message of MN, according to the ephemeris information of LEO LEO Satellite and system local plan Slightly, the part QoS Flows in PDU Session1 can be flowed back into MN by judgement.5GC1 sends prothetic group to target SN-gNB1 (SN MODIFICATION REQUEST) message is requested in modification of standing.Including in the message can benefit after notice target SN-gNB1 updates S-UE ability, request stresses to configure remaining part PDU Session1 associated radio resource in SN-gNB1 and S-NG connects Control plane, user face and the transfer resource etc. of mouth connection.

S203:SN-gNB1 receives the request message of 5GC1, deletes the part in PDU Session1 to be flowed back QoS Flows and related resource reconfigure remaining part PDU Session1.Then, SN-gNB1 sends prothetic group station to 5GC1 Modify response message such as prothetic group station modification confirmation (SN MODIFICATION REQUEST ACKNOWLEDGE) message.This disappears Include the part QoS Flows and related resource for notifying 5GC1 successfully to be deleted in PDU Session1 in breath, and successfully weighs Control plane, user face and the transfer resource etc. that the associated radio resource of the configuration side SN-gNB1 is connected with S-NG interface.SN-gNB1 Data forwarding (Data Forwarding) operation can also be carried out for the part QoS Flows of reflux.

S204:5GC1 receives the confirmation message of SN-gNB1, learns that PDU Session1 is successfully deleted in the side SN-gNB1 In part QoS Flows and related resource, can to MN send SN MODIFICATION COMMAND message.In the message Available P-UE ability and resource after maintaining dual link operation to update including notice MN, and the PDU Session1 that successfully flows back In the part side QoS Flows to MN demand.Then MN re-establishes the part QoS in the PDU Session1 of reflux Control plane, user face and transfer resource that Flows and associated radio resource are connected with P-NG interface etc..

After S204: by RRC reconfiguration message between MN and P-UE, continuing to safeguard P-RL Radio Link, this is subsequent Resume the PDU Session1 user service data of defeated PDU Session2 user service data and partial reflux.SN-gNB1 and By RRC reconfiguration message between S-UE, continues to safeguard S-RL Radio Link, hereafter continue the remaining PDU of hop Session1 user service data.

Release is initiated using example 3:MN or deletes the process of SN.

As illustrated in fig 16 a: in certain LEO low orbit satellite communication system, several LEO low orbit satellites are in specific near-earth ball rail On road.These satellites can be run around earth great circle periodically by scheduled ephemeris information.They carry complete gNB Base station functions (referred to as gNB type satellite), provide satellite radio access service for terrestrial user UEs.It is deployed on ground several A ground satellite station gateway (NTN-GW) entity, they are integrated in 5GC core network entity.Every LEO satellite relies on itself Stationkeeping ability can in time divide with ground one or more NTN-GW/5GC according to currently running physics longitude and latitude position Jian Li and one or more Feeder link not maintained to carry transmissions links, for carrying transmission NG interface connection example.Every LEO satellite can cover that (big oval in Figure 16 a, usual covering radius is far longer than ground to ground presumptive area project beams The covering of the serving cell of base station).With the movement of LEO satellite, the covering of these satellite beams is also in ground sliding and continental rise Terrestrial cellular covers (small ellipse in Figure 16 a) and forms alien frequencies overlapping covering.

As shown in fig 16b, the process that MN initiates release SN may comprise steps of:

T3 moment after S300:T2, the satellite base station A-gNB1 still anchor point constantly moved are connected to NTN-GW/5GC1 On, while also anchor point is connected on identical NTN-GW/5GC1 ground base station MN.MN and 5GC1 is according to network management configuration information, all Possess the ephemeris information of the LEO LEO Satellite.For example, which track position when which i.e. LEO satellite will run to It sets, the corresponding wave beam covered ground of the satellite is probably in which region etc..Therefore, MN and 5GC1 can speculate and learn: before T3 In one section of observing time afterwards, the overlapping of the wireless coverage of the covered ground and master base station MN of satellite base station A-gNB1 wave beam will be by Fade mistake, operates so that UE need to be exited with the air-ground dual link of satellite base station A-gNB1.MN can be continued to attempt to and subsequent satellite Base station B-gNB2, which is established, enters new air-ground dual link operation.Certain UE for being in air-ground dual link operation is just led at the same time Base station MN cell (small ellipse in Figure 16 a) and prothetic group station SN-gNB1 (big oval in Figure 16 a) are serviced, and respectively establish PDU The relevant radio resource of Session2 with PDU Session1 user service data connects transmission channel etc. with NG interface.The UE branch P-UE the and S-UE ability segmentation of the application is held, and updated ability segmentation information is reported to MN and 5GC1.Due to The wave cover of satellite base station A-gNB1 will disappear, and the remaining QoS Flows user service data in PDU Session1 needs It all flows back into MN to go to continue carrying transmission, satellite base station A-gNB1 will be also deleted as prothetic group station.In step S300, MN can be indicated by terminal wireless capability report (UE RADIO CAPABILITY REPORT) message or terminal ability information (UE CAPABILITY INFO INDICATION) message, P-UE the and S-UE ability and resource for reporting updated UE to support The information of segmentation.

S301:MN is according to the ephemeris information of LEO LEO Satellite, and the RRM measurement independent of UE reports, suitable Moment sends prothetic group station to 5GC1 and discharges demand (SN RELEASE REQUIRED) message.It include request in the message current Remaining QoS Flows of the side SN-gNB1 just in the PDU Session1 of carrying service all flows back into MN carrying transmission, thus The SN-gNB1 as UE prothetic group station can be deleted, air-ground dual link operation is exited.MN can also suggest doing data forwarding simultaneously Data Forwarding operation, provides corresponding data forwarding transport addresses information, in above-mentioned message to reduce reflux operation In data packetloss.

S302:5GC1 receives the requirement message of MN, according to the ephemeris information of LEO LEO Satellite and system local plan Slightly, the remaining QoS Flows in PDU Session1 can all be flowed back into MN by judgement.5GC1 is sent to target SN-gNB1 The release command of prothetic group station (SN RELEASE COMMAND) message.It include notice target SN-gNB1 release in the message, request is deleted Remove the control that the remaining QoS Flows associated radio resource in the side SN-gNB1 service PDU Session1 is connected with S-NG interface Face, user face and transfer resource processed etc..

S303:SN-gNB1 receives the request message of 5GC1, can delete surplus in PDU Session1 to be flowed back Remaining QoS Flows and whole related resources, send prothetic group station release response message for example to 5GC1 after completion: prothetic group station releases At (SN RELEASE COMPLETE) message.It include that notice 5GC1 oneself is successfully deleted in PDU Session1 in the message Remaining QoS Flows and whole related resources, deleted the SN-gNB1 as UE prothetic group station.SN-gNB1 can be also directed to back The remaining QoS Flows of stream carries out data forwarding (Data Forwarding) operation.

S304:5GC1 receives the Release complete of SN-gNB1, learns that SN-gNB1 successfully deletes PDU Remaining QoS Flows and whole related resources in Session1, to send prothetic group station release command (SN RELEASE to MN COMMAND) message.It include that notice MN exits available entire UE ability after dual link operation, and successfully returns in the message Flow the demand of the side remaining QoS Flows to MN in PDU Session1.Then MN re-establishes the PDU Session1 of reflux In remaining QoS Flows and associated radio resource control plane, user face and the transfer resource etc. that are connected with P-NG interface.

After S304: by RRC reconfiguration message between MN and UE, continuing to safeguard P-RL Radio Link, hereafter continue Transmission PDU Session2 user service data and the PDU Session1 user service data all to flow back.SN-gNB1 and By RRC release message between S-UE, original S-RL Radio Link is deleted, hereafter SN-gNB1 no longer service transmission is any PDU Session user service data.

Release (RELEASE) in this application example otherwise referred to as deletes (DELETE).Correspondingly, relevant to release Message can also be revised as message relevant to deleting.Disappear for example, demand (SN DELETE REQUIRED) is deleted at prothetic group station Breath, prothetic group station delete command (SN DELETE COMMAND) message, prothetic group station delete and successfully (SN DELETE COMPLETE) disappear Breath etc..It is also similar situation in following other application example, repeats no more.

The process of foundation or addition SN is initiated using example 4:5GC.

As illustrated in fig 17 a: in certain LEO low orbit satellite communication system, several LEO low orbit satellites are in specific near-earth ball rail On road.These satellites can be run around earth great circle periodically by scheduled ephemeris information.They carry complete gNB Base station functions (referred to as gNB type satellite), provide satellite radio access service for terrestrial user UEs.It is deployed on ground several A ground satellite station gateway (NTN-GW) entity, they are integrated in 5GC core network entity.Every LEO satellite relies on itself Stationkeeping ability can in time divide with ground one or more NTN-GW/5GC according to currently running physics longitude and latitude position Jian Li and one or more Feeder link not maintained to carry transmissions links, for carrying transmission NG interface connection example.Every LEO satellite can cover that (big oval in Figure 17 a, usual covering radius is far longer than ground to ground presumptive area project beams The covering of the serving cell of base station).With the movement of LEO satellite, the covering of these satellite beams is also in ground sliding and continental rise Terrestrial cellular covers (small ellipse in Figure 17 a) and forms alien frequencies overlapping covering.In step S400, MN can pass through terminal wireless energy Power reports that (UE RADIO CAPABILITY REPORT) message or terminal ability information indicate (UE CAPABILITY INFO INDICATION) message, the information for the P-UE and S-UE ability segmentation for reporting and cooperateing with UE to support.

As illustrated in fig. 17b, the process that 5GC initiates addition SN may comprise steps of:

S400:T1 moment, satellite base station A-gNB1 anchor point are connected on NTN-GW/5GC1, while ground base station MN also anchor Point is connected on identical NTN-GW/5GC1.MN and 5GC1 possesses the LEO LEO Satellite according to network management configuration information Ephemeris information.For example, which orbital position when which i.e. LEO satellite will run to, the corresponding wave beam ground of the satellite Covering is probably in which region.Deng.Therefore, MN and 5GC1 can speculate and learn: within one section of observing time before and after T1, satellite The covered ground of base station A-gNB1 wave beam and the wireless coverage of master base station MN have certain overlapping, so as to carry out air-ground doubly-linked Connect operation.Certain UE for being in connected state is serviced by master base station MN cell (small ellipse in Figure 17 a), and PDU has had been established The relevant radio resource of Session1 with PDU Session2 user service data connects transmission channel etc. with NG interface.The UE branch P-UE the and S-UE ability segmentation of the application is held, and supported ability segmentation information is reported to MN and 5GC1.According to being System local policy (such as: roaming safety or charging factor), PDU Session2 user service data can be by LEO satellite radio chains Road carrying transmission.

For S401:5GC1 according to the ephemeris information and system local policy of LEO LEO Satellite, judgement can be by PDU All QoS Flows are diverted to target SN-gNB1 in Session2, so that 5GC1 is directly to target SN- at the time of suitable GNB1 sends prothetic group station addition request (SN ADDITION REQUEST) message.In the message including notice target SN-gNB1 can The S-UE ability utilized, request establish the control that PDU Session1 associated radio resource is connected with S-NG interface in the side SN-gNB1 Face, user face and transfer resource processed etc..

S402:SN-gNB1 receives the request message of 5GC1, carries out local resource admission control.If SN-gNB1 determines All related resources can be successfully established for PDU Session2, prothetic group station can be sent to 5GC1 and add response message such as prothetic group Addition of standing confirms (SN ADDITION REQUEST ACKNOWLEDGE) message.It include that notice 5GC1 is successfully built in the message Control plane, user face and the biography that the associated radio resource of the vertical side PDU Session2 and SN-gNB1 is connected with S-NG interface Defeated resource etc..SN-gNB1 can also provide the transport addresses information for being data forwarding (Data Forwarding) simultaneously, with reality The data forwarding operation now come from the side MN.

S403:5GC1 receives the confirmation message of SN-gNB1, learns that the side SN-gNB1 successfully shunts and establishes PDU Session2 can send prothetic group station addition order (SN ADDITION COMMAND) message to MN.It include notice in the message MN enters available P-UE ability and resource after dual link operation, and successfully shunts the side PDU Session2 to SN-gNB1 Result.Then MN can delete the control that the associated radio resource of original service PDU Session2 is connected with P-NG interface Face, user face and transfer resource etc..

After S403: by RRC reconfiguration message between MN and P-UE, establishing and safeguard P-RL Radio Link, hereafter Only transmit PDU Session1 user service data.By RRC reconfiguration message between SN-gNB1 and S-UE, establishes and safeguard Hereafter S-RL Radio Link only transmits PDU Session2 user service data.

The process of modification SN is initiated using example 5:SN.

As shown in figure 18 a: in certain LEO low orbit satellite communication system, several LEO low orbit satellites are in specific near-earth ball rail On road.These satellites can be run around earth great circle periodically by scheduled ephemeris information.They carry complete gNB Base station functions (referred to as gNB type satellite), provide satellite radio access service for terrestrial user UEs.It is deployed on ground several A ground satellite station gateway (NTN-GW) entity, they are integrated in 5GC core network entity.Every LEO satellite relies on itself Stationkeeping ability can in time divide with ground one or more NTN-GW/5GC according to currently running physics longitude and latitude position Jian Li and one or more Feeder link not maintained to carry transmissions links, for carrying transmission NG interface connection example.Every LEO satellite can cover that (big oval in Figure 18 a, usual covering radius is far longer than ground to ground presumptive area project beams The covering of the serving cell of base station).With the movement of LEO satellite, the covering of these satellite beams is also in ground sliding and continental rise Terrestrial cellular covers (small ellipse in Figure 18 a) and forms alien frequencies overlapping covering.

As shown in fig. 18b, the process that SN initiates modification SN may comprise steps of:

T2 moment after S500:T1, the satellite base station A-gNB1 still anchor point constantly moved are connected to NTN-GW/5GC1 On, while also anchor point is connected on identical NTN-GW/5GC1 ground base station MN.MN and 5GC1 is gathered around according to network management configuration information There is the ephemeris information of the LEO LEO Satellite.For example, which orbital position when which LEO satellite will run to, Corresponding wave beam covered ground is probably in which region etc..Therefore, MN and 5GC1 can speculate and learn: one section of sight before and after T2 It examines in the time, the covered ground of satellite base station A-gNB1 wave beam and the wireless coverage of master base station MN still have certain overlapping, from And air-ground dual link operation can be continued to.The UE that certain has been in air-ground dual link operation is just small by master base station MN at the same time Area's (small ellipse in Figure 18 a) and prothetic group station SN-gNB1 (big oval in Figure 18 a) are serviced, and respectively establish PDU The relevant radio resource of Session1 with PDU Session2 user service data connects transmission channel etc. with NG interface.The UE branch P-UE the and S-UE ability segmentation of the application is held, and updated ability segmentation information is reported to MN and 5GC1.Due to SN- The factor of gNB1 satellite local overload, SN-gNB1 wish the part QoS Flows customer service in PDU Session2 Data backflow goes to continue carrying transmission to MN.In step S500, MN can pass through terminal wireless capability report (UE RADIO CAPABILITY REPORT) message or terminal ability information indicate (UE CAPABILITY INFO INDICATION) message, The information for the P-UE and S-UE ability segmentation for reporting updated UE to support.

S501:SN-gNB1 is according to the ephemeris information of LEO LEO Satellite, and the RRM measurement independent of UE reports, In Demand (SN MODIFICATION REQUIRED) message is modified to the active transmission prothetic group station 5GC1 at the time of suitable.In the message Including requesting part QoS Flows of the current side SN-gNB1 just in the PDU Session2 of carrying service to flow back into MN Carrying transmission.SN-gNB1 can also suggest doing data forwarding (Data Forwarding) operation simultaneously, to reduce reflux operation In data packetloss.

S502:5GC1 receives the request message of SN-gNB1, according to the ephemeris information and system of LEO LEO Satellite Part QoS Flows in PDU Session2 can be flowed back into MN by local policy, judgement.5GC1 sends prothetic group station to MN and repairs Change request (SN MODIFICATION REQUEST) message.It include available P-UE ability after notice MN updates in the message And resource, the control for requesting the part PDU Session2 associated radio resource for stressing configuration reflux in MN to connect with P-NG interface Face, user face and transfer resource processed etc..

S503:MN receives the request message of 5GC1.If the part QoS being successfully established in the PDU Session2 of reflux Flows and related resource can send prothetic group station modification response message such as prothetic group station modification confirmation (SN to 5GC1 MODIFICATION REQUEST ACKNOWLEDGE) message.It include that notice 5GC1 is successfully established PDU in the message Part QoS Flows and related resource in Session2, and successfully reconfigure the associated radio resource of the side MN and P-NG connects Control plane, user face and the transfer resource etc. of mouth connection.MN can also be mentioned in above-mentioned message for the part QoS Flows of reflux For data forwarding (Data Forwarding) transport addresses information.

S504:5GC1 receives the confirmation message of MN, learns the part QoS that the side MN is successfully established in PDU Session2 Flows and related resource send prothetic group station modification order (SN MODIFICATION COMMAND) message to SN-gNB1.This disappears It include that notice SN-gNB1 continues to available S-UE ability after dual link operation updates, and the PDU that successfully flows back in breath The result of the part side QoS Flows to MN in Session2.Then SN-gNB1 is deleted in the PDU Session2 of reflux Control plane, user face and transfer resource that part QoS Flows and associated radio resource are connected with S-NG interface etc..

After S504: by RRC reconfiguration message between MN and P-UE, continuing to safeguard P-RL Radio Link, this is subsequent Resume the PDU Session2 user service data of defeated PDU Session1 user service data and partial reflux.SN-gNB1 and By RRC reconfiguration message between S-UE, continues to safeguard S-RL Radio Link, hereafter continue the remaining PDU of hop Session2 user service data.

Figure 19 is the structural schematic diagram for the attachment device that one embodiment of the application provides.The device can be set in core net In network element.As shown in figure 19, the apparatus may include:

First sending module 71 wraps in first instruction message for sending the first instruction message to target prothetic group station Include the first instruction information that specified operation is executed to the auxiliary connection between target prothetic group station and target terminal, the specified behaviour Make to include establishing, addition, modifying or delete；

First receiving module 72, for receiving the first response message from target prothetic group station, first response It include the first result information corresponding with the first instruction information in message.

In one embodiment, as shown in figure 20, the device further include:

Second receiving module 73, for receiving the first requirement message from master base station, first requirement message is institute State what master base station was sent in the case where the wireless connection conditions for detecting the target terminal and multiple base stations change, institute Stating includes the first demand information that the specified operation is executed to the auxiliary connection in the first requirement message, the first demand letter Breath includes the demand information for the auxiliary establishment of connection, addition, modification, deletion or release.

In one embodiment, the device further include:

Second sending module 74 is used in the case where first result information indicates the specified successful situation of operation, Xiang Suoshu Master base station sends the second instruction message, include in second instruction message first result information and with first result The corresponding main bind command information of information.

In one embodiment, the device further include:

Third receiving module 75, for receiving the second requirement message from target prothetic group station, second requirement message It is target prothetic group station in the case where the wireless connection conditions for detecting the target terminal and multiple base stations change It sends, includes the second demand information for executing the specified operation to the auxiliary connection in second requirement message, it is described Second demand information includes the demand information for modification, deletion or the release of auxiliary connection；

Third sending module 76, for sending third instruction message to master base station, include in the third instruction message with The corresponding main bind command information of second demand information；

4th receiving module 77, for receiving the second response message from the master base station, second response message In include the second result information corresponding with the main bind command information.

In one embodiment, request message or the addition request of prothetic group station are established in base station supplemented by first instruction message Message, the first instruction information include that auxiliary concatenation ability and resource information can be used in the target terminal, and need to divide Flow to the user performance characteristic information at target prothetic group station.

In one embodiment, request message, the first instruction letter are modified in base station supplemented by first instruction message Breath includes the user performance characteristic information for needing to flow back into master base station from target prothetic group station, or is diverted to target prothetic group station again User performance characteristic information.

In one embodiment, base station release command message or prothetic group station delete command supplemented by first instruction message Message, the first instruction information includes remaining user performance characteristic information on the target prothetic group station for needing to delete.

In one embodiment, requirement message or prothetic group station addition demand are established in base station supplemented by first requirement message Message, first requirement message include needing to be diverted to the user performance characteristic information at target prothetic group station.

Requirement message, first requirement message are modified in base station supplemented by first requirement message in one embodiment Including needing to flow back into the user performance characteristic information of master base station, or it is diverted to the user performance characteristic at target prothetic group station again Information.

In one embodiment, demand is deleted at base station release requirement message or prothetic group station supplemented by first requirement message Message, first requirement message include remaining user performance characteristic information on the target prothetic group station for needing to delete.

In one embodiment, command messages or the addition order of prothetic group station are established in base station supplemented by second instruction message Message, second instruction message include that main concatenation ability and resource information can be used in the target terminal, and shunted To the user performance characteristic information at target prothetic group station.

In one embodiment, command messages are modified in base station supplemented by second instruction message, and second instruction disappears Breath includes that main concatenation ability and resource information can be used in the target terminal, needs to flow back into the user performance characteristic of master base station Information, or it has been diverted to the user performance characteristic information at target prothetic group station.

In one embodiment, base station release command message or prothetic group station delete command supplemented by second instruction message Message, second instruction message include that main concatenation ability and resource information can be used in the target terminal, and need back Flow to remaining user performance characteristic information on the target prothetic group station of master base station.

In one embodiment, requirement message, the second demand letter are modified in base station supplemented by second requirement message Breath includes the user performance characteristic information for needing to flow back into master base station；

Request message is modified in base station supplemented by the third instruction message, and the third instruction message includes the target terminal In main concatenation ability and resource information can be used, need to flow back into the user performance characteristic information of master base station；

In one embodiment, demand is deleted at base station release requirement message or prothetic group station supplemented by second requirement message Message, second demand information include remaining user performance characteristic information on the target prothetic group station for needing to delete；

Base station release command message or prothetic group station delete command message supplemented by the third instruction message, the third instruction Message includes that main concatenation ability and resource information can be used in the target terminal, needs to flow back into the target prothetic group station of master base station Upper remaining user performance characteristic information；

Base station release command message or prothetic group station delete command message supplemented by the first instruction information, first instruction Remaining user performance characteristic information on the target prothetic group station for needing to delete in message.

Figure 21 is the structural schematic diagram for the attachment device that another embodiment of the application provides.The device, which can be set, to be accessed In network element.As shown in figure 21, the apparatus may include:

5th receiving module 81, for receiving the first instruction message from core network element, first instruction message In include the first instruction information that specified operation is executed to the auxiliary connection between target prothetic group station and target terminal, the specified behaviour Make to include establishing, addition, modifying or delete；

Execution module 82, it is described specified for being executed to the auxiliary connection between target prothetic group station and the target terminal Operation；

5th sending module 83, for sending the first response message, first response message to the core network element In include the first result information corresponding with first instruction message.

In one embodiment, as shown in figure 22, the device further include:

6th sending module 84, for detecting that the target terminal and the wireless connection conditions of multiple base stations become In the case where change, it includes to the auxiliary company in first requirement message that Xiang Suoshu core network element, which sends the first requirement message, The first demand information for executing the specified operation is connect, first requirement message includes for the auxiliary establishment of connection, adds The demand for adding, modify, deleting or discharging.

In one embodiment, the device further include:

6th receiving module 85, for receiving the second instruction message from the core network element, second instruction Message is to indicate to send in the specified successful situation of operation in first result information in the core network element, described the It include first result information and main bind command information corresponding with first result information in two instruction messages.

In one embodiment, the device further include:

7th sending module 86, for detecting that the target terminal and the wireless connection conditions of multiple base stations become In the case where change, it includes to the auxiliary company in second requirement message that Xiang Suoshu core network element, which sends the second requirement message, The second demand information for executing the specified operation is connect, second demand information includes the modification for being directed to the auxiliary connection, deletes The demand removed or discharged.

In one embodiment, the device further include:

7th receiving module 87, for receiving the third instruction message from the core network element, the third instruction It include main bind command information corresponding with second demand information in message；

8th sending module 88, for sending the second response message, second response message to the core network element In include the second result information corresponding with the main bind command information.

In one embodiment, requirement message is modified in base station supplemented by first requirement message, and first demand disappears Breath includes the customer service spy for needing to flow back into the user performance characteristic information of master base station, or being diverted to target prothetic group station again Reference breath.

In one embodiment, execution module is also used to that auxiliary concatenation ability and money can be used according in the target terminal Source information, and need to be diverted to the user performance characteristic information at target prothetic group station, the auxiliary connection with the target terminal is established, The customer service is diverted to target prothetic group station, so that carrying transmission is continued at target prothetic group station.

In one embodiment, the customer service that execution module is also used to need to flow back carries transfer resource from target Prothetic group station is deleted, or distributes new bearer transfer resource for the customer service shunted again.

In one embodiment, execution module is also used to remaining customer service carrying transfer resource from target prothetic group It stands deletion, and discharges or delete target prothetic group station.

The function of each module in each device of the embodiment of the present application may refer to the corresponding description in above method embodiment, Details are not described herein.

Figure 23 is the structural schematic diagram of the network equipment provided by the embodiments of the present application, as shown in figure 23, the embodiment of the present application The network equipment 130 of offer includes: memory 1303 and processor 1304.The network equipment 130 can also include interface 1301 and bus 1302.The interface 1301, memory 1303 are connected with processor 1304 by bus 1302.The storage Device 1303 is for storing instruction.It is above-mentioned applied to access net net to execute that the processor 1304 is configured as reading described instruction The technical solution of the embodiment of the method for member, it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Figure 24 is the structural schematic diagram of the network equipment provided by the embodiments of the present application, as shown in figure 24, the embodiment of the present application The network equipment 140 of offer includes: memory 1403 and processor 1404.The network equipment can also include 1401 He of interface Bus 1402.The interface 1401, memory 1403 are connected with processor 1404 by bus 1402.The memory 1403 For storing instruction.The processor 1404 is configured as reading described instruction to execute the above-mentioned side applied to core network element The technical solution of method embodiment, it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Figure 25 is communication system architecture schematic diagram provided by the embodiments of the present application, and as shown in figure 25, which includes: as above State the network equipment 130 of embodiment and the network equipment 140 of above-described embodiment.

The application provides a kind of storage medium, and the storage medium is stored with computer program, the computer program quilt Processor realizes the method in above-described embodiment when executing.

The above, the only preferred embodiment of the application, are not intended to limit the protection scope of the application.

In general, the various embodiments of the application can be in hardware or special circuit, software, logic or any combination thereof Middle realization.For example, some aspects can be implemented within hardware, and can be implemented in can be by controller, micro- for other aspects In the firmware or software that processor or other computing devices execute, although the application is without being limited thereto.

Embodiments herein can execute computer program instructions by the data processor of mobile device and realize, example Such as in processor entity, perhaps pass through hardware or the combination by software and hardware.Computer program instructions can be remittance Compile instruction, instruction set architecture (ISA) instruction, machine instruction, machine-dependent instructions, microcode, firmware instructions, state setting number According to or with one or more programming languages any combination source code or object code write.

The block diagram of any logic flow in illustrations can be with representation program step, or can indicate to be connected with each other Logic circuit, module and function, or can be with the combination of representation program step and logic circuit, module and function.Computer Program can store on a memory.Memory can have any type for being suitable for local technical environment and can be used Any suitable data storage technology is realized.Memory in the embodiment of the present application can be volatile memory or non-volatile Memory, or may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (Read-Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), erasable programmable are only Read memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, ) or flash memory etc. EEPROM.Volatile memory can be random access memory (Random Access Memory, RAM), As External Cache.RAM may include diversified forms, such as static random access memory (Static RAM, SRAM), Dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate SDRAM, DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links dynamic random access memory Device (Synchlink DRAM, SLDRAM) and direct rambus random access memory (Direct Rambus RAM, DR RAM).The memory of system and method described herein includes but is not limited to the storage of these and any other suitable type Device.

The processor of the embodiment of the present application can be any type for being suitable for local technical environment, such as, but not limited to logical With computer, special purpose computer, microprocessor, digital signal processor (Digital Signal Processor, DSP), specially With integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable logic device (Field-Programmable Gate Array, FGPA) either other programmable logic device, discrete gate or transistor Logical device, discrete hardware components or the processor based on multi-core processor framework.General processor can be microprocessor Or it is also possible to any conventional processor etc..Above-mentioned processor may be implemented or execute the public affairs in the embodiment of the present application The step of each method opened.Software module can be located at random access memory, flash memory, read-only memory, programmable read only memory Or in the storage medium of this fields such as electrically erasable programmable memory, register maturation.The storage medium is located at memory, The step of processor reads the information in memory, completes the above method in conjunction with its hardware.

By exemplary and unrestricted example, retouching in detail to the example embodiment of the application has had been provided above It states.But consider in conjunction with drawings and claims, a variety of modifications and adjustment to above embodiments carry out those skilled in the art Say it is it will be apparent that but without departing from the scope of the present invention.Therefore, appropriate range of the invention will be determined according to claim.

Claims

1. a kind of connection method characterized by comprising

The first instruction message is sent to target prothetic group station, includes to target prothetic group station and target in first instruction message Auxiliary connection between terminal executes the first instruction information of specified operation, and the specified operation includes building for the auxiliary connection Vertical, addition, is deleted or is discharged at modification；

The first response message from target prothetic group station is received, includes in first response message and first instruction Corresponding first result information of information.

2. the method according to claim 1, wherein further include:

The first requirement message from master base station is received, first requirement message is that the master base station is detecting the target What the wireless connection conditions of terminal and multiple base stations were sent in the case where changing, include to institute in first requirement message The first demand information that auxiliary connection executes the specified operation is stated, first demand information includes building for the auxiliary connection Vertical, addition, modification, the demand information deleted or discharged.

3. method according to claim 1 or 2, which is characterized in that further include:

In the case where first result information indicates the specified successful situation of operation, the second instruction message is sent to master base station, it is described It include first result information and main bind command information corresponding with first result information in second instruction message.

4. the method according to claim 1, wherein further include:

The second requirement message from target prothetic group station is received, second requirement message is that target prothetic group station is detecting What the target terminal and the wireless connection conditions of multiple base stations were sent in the case where changing, in second requirement message The second demand information including executing the specified operation to the auxiliary connection, second demand information includes being directed to auxiliary connection Modification, deletion or release demand information；

Third instruction message is sent to master base station, includes master corresponding with second demand information in the third instruction message Bind command information；

The second response message from the master base station is received, includes believing in second response message with the main bind command Cease corresponding second result information.

5. the method according to claim 1, wherein request message is established in base station supplemented by first instruction message Or request message is added at prothetic group station, the first instruction information includes that auxiliary concatenation ability and resource can be used in the target terminal Information, and need to be diverted to the user performance characteristic information at target prothetic group station.

6. the method according to claim 1, wherein base station modification request disappears supplemented by first instruction message Breath, the first instruction information includes the user performance characteristic information for needing to flow back into master base station from target prothetic group station, Huo Zhechong Newly it is diverted to the user performance characteristic information at target prothetic group station.

7. the method according to claim 1, wherein base station release command message supplemented by first instruction message Or prothetic group station delete command message, the first instruction information includes remaining customer service on the target prothetic group station for needing to delete Characteristic information.

8. according to the method described in claim 2, it is characterized in that,

Requirement message or prothetic group station addition requirement message, first requirement message are established in base station supplemented by first requirement message User performance characteristic information including needing to be diverted to target prothetic group station.

9. according to the method described in claim 2, it is characterized in that,

Requirement message is modified in base station supplemented by first requirement message, and first requirement message includes needing to flow back into master base station User performance characteristic information, or be diverted to the user performance characteristic information at target prothetic group station again.

10. according to the method described in claim 2, it is characterized in that,

Requirement message, first requirement message are deleted in base station release requirement message or prothetic group station supplemented by first requirement message Remaining user performance characteristic information on the target prothetic group station deleted including needs.

11. according to the method described in claim 3, it is characterized in that, supplemented by second instruction message base station establish order disappear Command messages are added at breath or prothetic group station, and second instruction message includes that main concatenation ability and money can be used in the target terminal Source information, and it has been diverted to the user performance characteristic information at target prothetic group station.

12. according to the method described in claim 3, it is characterized in that, supplemented by second instruction message base station modification order disappear Breath, second instruction message includes that main concatenation ability and resource information can be used in the target terminal, needs to flow back into master The user performance characteristic information of base station, or it has been diverted to the user performance characteristic information at target prothetic group station.

13. according to the method described in claim 3, it is characterized in that, supplemented by second instruction message base station release command disappear Breath or prothetic group station delete command message, second instruction message include that main concatenation ability and money can be used in the target terminal Source information, and need to flow back into remaining user performance characteristic information on the target prothetic group station of master base station.

14. according to the method described in claim 4, it is characterized in that,

Requirement message is modified in base station supplemented by second requirement message, and second demand information includes needing to flow back into master base station User performance characteristic information；

Request message is modified in base station supplemented by the third instruction message, and the third instruction message includes in the target terminal Main concatenation ability and resource information can be used, needs to flow back into the user performance characteristic information of master base station；

Command messages are modified in base station supplemented by the first instruction information, include in the target terminal in first instruction message Auxiliary concatenation ability and resource information can be used, and flowed back into the user performance characteristic information of master base station.

15. according to the method described in claim 4, it is characterized in that,

Requirement message, second demand information are deleted in base station release requirement message or prothetic group station supplemented by second requirement message Remaining user performance characteristic information on the target prothetic group station deleted including needs；

Base station release command message or prothetic group station delete command message, the third instruction message supplemented by the third instruction message Including main concatenation ability and resource information can be used in the target terminal, needs to flow back on the target prothetic group station of master base station and remain Remaining user performance characteristic information；

Base station release command message or prothetic group station delete command message supplemented by the first instruction information, first instruction message Remaining user performance characteristic information on the middle target prothetic group station for needing to delete.

16. a kind of connection method characterized by comprising

The first instruction message from core network element is received, includes to target prothetic group station and target in first instruction message Auxiliary connection between terminal executes the first instruction information of specified operation, and the specified operation includes building for the auxiliary connection Vertical, addition, is deleted or is discharged at modification；

The first response message is sent to the core network element, includes and first instruction message in first response message Corresponding first result information.

17. according to the method for claim 16, which is characterized in that further include:

In the case where detecting that the wireless connection conditions of the target terminal and multiple base stations change, Xiang Suoshu core net Network element sends the first requirement message, includes executing the first of the specified operation to the auxiliary connection in first requirement message Demand information, first requirement message include the demand for the auxiliary establishment of connection, addition, modification, deletion or release.

18. according to the method for claim 16, which is characterized in that further include:

The second instruction message from the core network element is received, second instruction message is existed in the core network element It is sent in the specified successful situation of operation of first result information expression, includes described first in second instruction message Result information and main bind command information corresponding with first result information.

19. according to the method for claim 16, which is characterized in that further include:

In the case where detecting that the wireless connection conditions of the target terminal and multiple base stations change, Xiang Suoshu core net Network element sends the second requirement message, includes executing the second of the specified operation to the auxiliary connection in second requirement message Demand information, second demand information include the demand for modification, deletion or the release of the auxiliary connection.

20. according to the method for claim 19, which is characterized in that further include:

The third instruction message from the core network element is received, includes and second demand in the third instruction message The corresponding main bind command information of information；

The second response message is sent to the core network element, includes believing in second response message with the main bind command Cease corresponding second result information.

21. according to the method for claim 16, which is characterized in that base station establishes request and disappears supplemented by first instruction message Request message is added at breath or prothetic group station, and the first instruction information includes that auxiliary concatenation ability and money can be used in the target terminal Source information, and need to be diverted to the user performance characteristic information at target prothetic group station.

22. according to the method for claim 16, which is characterized in that base station modification request disappears supplemented by first instruction message Breath, the first instruction information includes the user performance characteristic information for needing to flow back into master base station from target prothetic group station, Huo Zhechong Newly it is diverted to the user performance characteristic information at target prothetic group station.

23. according to the method for claim 16, which is characterized in that base station release command disappears supplemented by first instruction message Breath or prothetic group station delete command message, the first instruction information includes remaining user's industry on the target prothetic group station for needing to delete Business characteristic information.

24. according to the method for claim 17, which is characterized in that

25. according to the method for claim 17, which is characterized in that

26. according to the method for claim 17, which is characterized in that

27. according to the method for claim 18, which is characterized in that base station establishes order and disappears supplemented by second instruction message Command messages are added at breath or prothetic group station, and second instruction message includes that main concatenation ability and money can be used in the target terminal Source information, and it has been diverted to the user performance characteristic information at target prothetic group station.

28. according to the method for claim 18, which is characterized in that base station modification order disappears supplemented by second instruction message Breath, second instruction message includes that main concatenation ability and resource information can be used in the target terminal, needs to flow back into master The user performance characteristic information of base station, or it has been diverted to the user performance characteristic information at target prothetic group station.

29. according to the method for claim 18, which is characterized in that base station release command disappears supplemented by second instruction message Breath or prothetic group station delete command message, second instruction message include that main concatenation ability and money can be used in the target terminal Source information, and need to flow back into remaining user performance characteristic information on the target prothetic group station of master base station.

30. according to the method for claim 20, which is characterized in that

31. according to the method for claim 20, which is characterized in that

32. according to method described in claim 21,24 or 27, which is characterized in that target prothetic group station and the target Auxiliary connection between terminal executes the specified operation, comprising:

Auxiliary concatenation ability and resource information can be used according in the target terminal, and need to be diverted to the use at target prothetic group station Family service feature information establishes the auxiliary connection with the target terminal, the customer service is diverted to target prothetic group station, with Target prothetic group station is set to continue carrying transmission.

33. according to method described in claim 22,25,28 or 30, which is characterized in that target prothetic group station and the mesh The auxiliary connection marked between terminal executes the specified operation, comprising:

The customer service for needing to flow back is carried transfer resource to delete from target prothetic group station, or the customer service point to shunt again With new bearer transfer resource.

34. according to method described in claim 23,26,29 or 31, which is characterized in that target prothetic group station and the mesh The auxiliary connection marked between terminal executes the specified operation, comprising:

Remaining customer service is carried transfer resource to delete from target prothetic group station, and discharges or delete target prothetic group station.

35. a kind of attachment device characterized by comprising

First sending module includes to institute in first instruction message for sending the first instruction message to target prothetic group station The first instruction information that the auxiliary connection between target prothetic group station and target terminal executes specified operation is stated, the specified operation includes It establishes, addition, modify or delete；

First receiving module, for receiving the first response message from target prothetic group station, in first response message Including the first result information corresponding with the first instruction information.

36. a kind of attachment device characterized by comprising

5th receiving module includes in first instruction message for receiving the first instruction message from core network element The first instruction information of specified operation is executed to the auxiliary connection between target prothetic group station and target terminal, the specified operation includes It establishes, addition, modify or delete；

Execution module, for executing the specified operation to the auxiliary connection between target prothetic group station and the target terminal；

5th sending module is used to send the first response message to the core network element, includes in first response message The first result information corresponding with first instruction message.

37. a kind of network equipment, which is characterized in that the network equipment includes: processor and memory；

The memory is for storing instruction；

The processor is configured to reading described instruction to execute the method as described in any one of claims 1 to 34.

38. a kind of storage medium, which is characterized in that the storage medium is stored with computer program, the computer program quilt The described in any item methods of claims 1 to 34 are realized when processor executes.