CN109587825A

CN109587825A - Establish the method for connection, the method for request supplementary cell group configuration and corresponding base station

Info

Publication number: CN109587825A
Application number: CN201810029453.5A
Authority: CN
Inventors: 王弘; 许丽香; 柯小婉
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2017-09-28
Filing date: 2018-01-11
Publication date: 2019-04-05
Anticipated expiration: 2038-01-11
Also published as: CN109587825B

Abstract

The present invention provides the methods for establishing connection and corresponding master base station and assistant base station, the method comprise the steps that sending assistant base station to assistant base station establishes request message；And receive assistant base station and establish response message, the assistant base station establishes the map information that response message includes QoS Flow to the DRB that assistant base station determines.Additionally provide the method and corresponding master base station and assistant base station that request SCG is configured, the method comprise the steps that sending for requesting the assistant base station of SCG configuration information to modify request message, the assistant base station modification request message carries instruction information, is used to indicate master base station and needs to obtain SCG configuration information；And receive the assistant base station that assistant base station is sent and modify response message, the assistant base station modification response message carries the SCG configuration information.Additionally provide corresponding computer-readable medium.

Description

Establish the method for connection, the method for request supplementary cell group configuration and corresponding base station

Technical field

The present invention relates to wireless communication techniques, in particular to establish the method for connection, for requesting supplementary cell group (SCG) Method, master base station, assistant base station and the computer-readable medium of configuration.

Background technique

5G refers to the 5th third-generation mobile communication technology.It is not a single wireless technology with preceding four Dai Butong, 5G, and It is a fusion of existing wireless communication technique.Currently, LTE peak rate can achieve 100Mbps, the peak rate of 5G will Reach 10Gbps, improves 100 times than 4G.Existing 4G network processes locomotor is limited, can not support section HD video, The business such as high-quality speech, augmented reality, virtual reality.5G will introduce more advanced technology, be imitated by the frequency spectrum more increased Rate, cell of more frequency spectrum resources and more crypto set etc. meet the needs of mobile service flow growth jointly, solve 4G net Network problems faced, construct the transmission rate of a high speed, high capacity, low time delay, high reliability, outstanding user experience net Network community.As shown in Figure 1, containing the access net of 5G in 5G framework, the core net of 5G, user equipment (UE) passes through access net, Core net is communicated with data network.

In e-learning quality, the first stage will continue to the base station using LTE, while can support the terminal of 5G and use 5G Feature.Therefore the base station of some 5G can be disposed, these base stations can be used as assistant base station and LTE base station and provide together to UE Data transmission.There is no signaling connection between the base station 5G and core network control node (mobility management entity (MME)), only with core Net gateway (gateway (SGW)) has the connection of user plane.LTE base station and LTE core network can be reused under this framework, it is right Operator is attractive and is desired by operator.Specifically, LTE base station configures the base station 5G, using fixed in LTE system The doubly-linked connection technology of justice gives UE transmission technology.Wherein LTE base station is as master base station, and the base station 5G is as assistant base station.

The type of dual link can be there are many bearer types, as shown in Fig. 2, the carrying of transmission data can be divided into segmentation and hold It carries (split carrying), auxiliary carrying (supplementary cell group (SCG) carrying), auxiliary partition carries (SCG split carrying).Segmentation Carrying refers to that master base station receives data from core net, is then divided into two-way, is sent to UE from master base station all the way, all the way from auxiliary base Station is sent to UE.SCG carrying is assistant base station from core net reception data, is then sent to UE by assistant base station.Auxiliary partition Carrying, which is assistant base station, receives data from core net, and then data are split, and a part is sent to UE by assistant base station, and one Part is sent to master base station, is sent to UE by master base station.Auxiliary partition carries the bearer types being newly introduced, its user plane As shown in Figure 3.

In 5G technology, using some technologies different with 4G technology, for example, on service quality (QoS) framework, 5G Define new mode.When protocol Data Unit session (PDU Session) is established, core net is default QoS plan The qos policy for omiting or authenticating issues wireless access network (RAN) and UE.Data connection is UE to the biography between core net Defeated path.Contain the radio bearer between the transmission path and base station and UE between core net and base station.PDU Session is Connection between UE and packet data network, this connection are used to transmission data units, usually establish a PDU to a business Session.Data unit type includes IP data, Ethernet data and non-IP data.When establishing PDU Session, Qos policy is sent to RAN by NG interface by core net, and qos policy is sent to UE by NAS interface.Qos policy contains Instruction information/description information of QoS Flow further comprises specific QoS information, such as data postpone target, error in data Rate, the priority of data guarantee data rate, and the information such as maximum data rate can also include other information, such as comprising The information of application layer.RAN establishes default Data Radio Bearer (DRB), in addition to default DRB, RAN can according to the requirement of QoS To establish other DRB simultaneously.In user plane, core net data packet group at QoS Flow, in the data head of QoS Flow In addition QoS indicates information, information is indicated according to QoS, RAN can find corresponding design parameter, root according to the qos policy received It according to the parameter inside qos policy, is performed corresponding processing with the data of user plane, to meet quality requirement.Core net is band The data packet of QoS instruction information is sent to RAN, and RAN is mapped to QoS Flow the resource and radio bearer of access net, such as RAN determines that the QoS Flow is mapped on some Deta bearer DRB, or establishes new Deta bearer for the QoS Flow DRB.When establish new DRB to be determined by RAN, can be established after the signaling for receiving core net, or receives the QoS The data of Flow user, the QoS that the packet header according to QoS Flow includes indicate information, indicate information by QoS, save in conjunction with RAN Default qos policy and/or pre-authentication qos policy, RAN can learn that the corresponding specific QoS of the QoS Flow is wanted It asks, according to qos requirement, if the current DRB having built up is suitble to carry the data of the qos requirement, the QoS Flow It is transmitted by this DRB.If it is not, RAN can determine to establish new DRB, the QoS Flow is carried with new DRB.

Under dual link, master base station and assistant base station are all RAN nodes, QoS Flow can by the way of dual link by Master base station is diverted to assistant base station, or opposite.If master base station and assistant base station are all responsible for the mapping of QoS Flow to DRB, When the mapping relations difference that the two determines, current doubly-linked termination process needs are modified accordingly.

Summary of the invention

For this purpose, the present invention proposes how to build when the mapping of master base station and assistant base station decision QoS Flow to DRB are different The technical solution of vertical dual link.The technical solution proposed through the invention can correctly configure the resource of dual link, reduce signaling Interaction, improve the transmission reliability of user data.

According to the first aspect of the invention, it provides a kind of for connecting the method established, comprising:

Assistant base station, which is sent, to assistant base station establishes request message；And

It receives assistant base station and establishes response message, it includes service quality stream QoS that the assistant base station, which establishes response message, The map information of Flow to DRB.

In one exemplary embodiment, it includes one or more in following information that the assistant base station, which establishes request message, It is a:

The type of dual link carrying；

The identification information of QoS Flow；

The mark for the Packet Data Unit session PDU Session that QoS Flow belongs to；

Quality requirement parameter corresponding with the QoS Flow；

Upstream data receives address；

Radio resource control RRC transparent vessel.In one exemplary embodiment, the assistant base station establishes request message also It include: master base station distribution for receiving the downlink data reception address of downlink data from assistant base station.

In one exemplary embodiment, the assistant base station establishes response message further include: downlink of the DRB on Xn interface Data receiver address.

In one exemplary embodiment, the assistant base station establishes request message further include: is assisting base with that can establish The mark of the corresponding DRB of QoS Flow on standing.

In one exemplary embodiment, the method also includes:

Response message is established according to the assistant base station received, sends at least one of following information to assistant base station:

The mark for the DRB that assistant base station determines；

Master base station is the tunnel information of DRB distribution.

In one exemplary embodiment, the information is in reconfiguring completion message to the assistant base station that assistant base station is sent It carries.

According to the second aspect of the invention, it provides a kind of for connecting the method established, comprising:

Assistant base station, which is received, from master base station establishes request message；And

Assistant base station is sent to master base station and establishes response message, and it includes service quality that the assistant base station, which establishes response message, Flow the map information of QoS Flow to DRB.

The type of dual link carrying；

The identification information of QoS Flow；

Quality requirement parameter corresponding with the QoS Flow；

Upstream data receives address；

Radio resource control RRC transparent vessel.

In one exemplary embodiment, the assistant base station establishes request message further include: master base station distribution for from The downlink data that assistant base station receives downlink data receives address.

In one exemplary embodiment, the method also includes: receive master base station according to the assistant base station establish respond At least one of the following information that message is sent:

The mark for the DRB that assistant base station determines；

Master base station is the tunnel information of DRB distribution.

In one exemplary embodiment, the information reconfigures completion to the assistant base station that assistant base station is sent in master base station It is carried in message.

According to the third aspect of the invention we, a kind of method for requesting supplementary cell group (SCG) to configure, packet are provided It includes:

It sends to assistant base station for requesting the assistant base station of SCG configuration information to modify request message, the assistant base station It modifies request message and carries instruction information, be used to indicate master base station and need to obtain SCG configuration information；And

It receives the assistant base station that assistant base station is sent and modifies response message, the assistant base station modification response message carries institute State SCG configuration information.

According to the fourth aspect of the invention, a kind of method for requesting supplementary cell group (SCG) to configure, packet are provided It includes:

It receives from master base station for requesting the assistant base station of SCG configuration information to modify request message, the assistant base station is repaired Change request message and carry instruction information, is used to indicate master base station and needs to obtain SCG configuration information；And

Assistant base station is sent to master base station and modifies response message, and the assistant base station modification response message carries the SCG Configuration information.

In one exemplary embodiment, the assistant base station ignores the auxiliary after receiving the instruction information The RRC transparent vessel carried in base station modification request message.

According to the fifth aspect of the invention, a kind of master base station is provided, comprising:

Communication interface is configured to communicate；

Processor；And

Memory is stored with computer executable instructions, and described instruction holds the master base station when being executed by processor The aforementioned method executed at master base station of row.

According to the sixth aspect of the invention, a kind of assistant base station is provided, comprising:

Communication interface is configured to communicate；

Processor；And

Memory is stored with computer executable instructions, and described instruction makes the assistant base station when being executed by processor Execute the aforementioned method executed at assistant base station.

According to the seventh aspect of the invention, a kind of computer-readable medium is provided, is stored with instruction, the finger on it It enables when executed by the processor, the processor is made to execute preceding method.

Detailed description of the invention

Fig. 1 schematically shows 5G system architecture；

Fig. 2 schematically shows dual link frameworks；

Fig. 3 schematically shows the user plane framework of SCG split carrying；

Fig. 4 schematically shows according to an exemplary embodiment of the present invention at master base station execute for establishing doubly-linked The flow chart of the method connect；

Fig. 5 schematically shows the double for establishing of the execution according to an exemplary embodiment of the present invention at assistant base station The flow chart of the method for connection；

Fig. 6 schematically shows the according to an exemplary embodiment of the present 1 signaling flow graph for being used to establish dual link；

Fig. 7 schematically shows the according to an exemplary embodiment of the present 2 signaling flow graph for being used to establish dual link；

Fig. 8 schematically shows the according to an exemplary embodiment of the present 3 signaling flow graph for being used to establish dual link；

Fig. 9 schematically show it is according to an exemplary embodiment of the present invention executed at master base station for requesting SCG The flow chart of the method for configuration；

Figure 10 schematically show it is according to an exemplary embodiment of the present invention executed at assistant base station for requesting The flow chart of the method for SCG configuration；

Figure 11 schematically shows the signaling flow graph according to an exemplary embodiment of the present invention for requesting SCG to configure；

Figure 12 schematically shows the structural block diagram of master base station according to an exemplary embodiment of the present invention；And

Figure 13 schematically shows the structural block diagram of assistant base station according to an exemplary embodiment of the present invention.

Specific embodiment

In order to which the purposes, technical schemes and advantages of the application are more clearly understood, the application is done below in conjunction with attached drawing It is further described.It is served only for it should be noted that being described below for example, being not limited to the disclosure.In the following description, In order to provide the thorough understanding to the disclosure, a large amount of specific details are elaborated.However, it is aobvious for those of ordinary skill in the art and It is clear to: the disclosure need not be carried out using these specific details.In other instances, in order to avoid obscuring the disclosure, not Specifically describe well known circuit, material or method.

Throughout the specification, meaning is referred to " one embodiment ", " embodiment ", " example " or " example " : a particular feature, structure, or characteristic described in conjunction with this embodiment or example is comprised at least one embodiment of the disclosure. Therefore, the phrase " in one embodiment ", " in embodiment ", " example " occurred in each place of the whole instruction Or " example " is not necessarily all referring to the same embodiment or example.Furthermore, it is possible in any suitable combination and/or sub-portfolio will be specific Feature, structure or characteristic combine in one or more embodiment or examples.In addition, those of ordinary skill in the art should manage Solution, attached drawing is provided to the purpose of explanation provided herein, and attached drawing is not necessarily drawn to scale.Art used herein Language "and/or" includes any and all combinations for the project that one or more correlations are listed.

Basic principle of the invention is, master base station decision will establish dual link on assistant base station, and master base station is to auxiliary The type of base station notice dual link and the QoS Flow mark to be shunted.SCG split is carried, optionally, master base station can With the DRB mark (the QoS Flow to be shunted corresponding DRB mark on master base station) and master base station for notifying master base station to determine For the downlink reception tunnel information on the corresponding Xn interface of the DRB.

Assistant base station determines the mapping of QoS Flow to DRB, if what mapping and master base station that assistant base station determines determined Map identical, assistant base station is using using master base station for the downlink reception tunnel on the corresponding Xn interface of old DRB, shunting Data are sent to the tunnel, are then sent to UE by master base station.If what mapping and master base station that assistant base station determines determined reflects Difference is penetrated, assistant base station is new DRB identification notification to master base station.Optionally, assistant base station can indicate that new DRB is corresponding Downlink reception tunnel information on Xn interface.

Master base station distributes the downlink reception tunnel on corresponding Xn interface according to the mark of new DRB for new DRB, and And the downlink reception Tunnel Notify on Xn interface to assistant base station.

Hereinafter with reference to Fig. 4, it is described to according to the method for establishing dual link of disclosure exemplary embodiment, The method can execute at master base station.

Fig. 4 schematically shows according to disclosure exemplary embodiment can be executed at master base station for establishing The flow chart of the method 400 of dual link.As shown in figure 4, method 400 may include step S401 and S402.

In step S401, master base station can send assistant base station to assistant base station and establish request message, will for request DRB is established on assistant base station.

It may include one or more of following information (for example, will be later that the assistant base station, which establishes request message, Referring to the exemplary embodiment 3 of Fig. 8 description):

The type of dual link carrying；

The identification information of QoS Flow；

The mark for the PDU Session that QoS Flow belongs to；

Quality requirement parameter corresponding with the QoS Flow；

Upstream data receives address；

RRC transparent vessel.

In the exemplary embodiment, the assistant base station, which establishes request message, to include:

The downlink data for receiving downlink data from assistant base station of master base station distribution receives address, establishes in auxiliary base The mark (for example, by later referring to exemplary embodiment 1 of Fig. 6 description) of the corresponding DRB of QoS Flow on standing；Or

The downlink data for receiving downlink data from assistant base station of master base station distribution receives address (for example, will be at it Afterwards referring to the exemplary embodiment 2 of Fig. 7 description).

The mark for the Data Radio Bearer (DRB) that assistant base station can configure.The mark of DRB by master base station unified management and Distribution, is established in request message in assistant base station, and master base station notifies assistant base station, is currently available that the mark of DRB, if auxiliary Base station will determine to establish new DRB, need to select one inside the mark for being currently available that DRB, as newly-established DRB's Mark.Perhaps the usable range master base station or assistant base station for being pre-configured with the DRB mark of assistant base station and master base station can only Come to select DRB mark for Data Radio Bearer out of usable range.

In step S402, master base station can receive assistant base station from assistant base station and establish response message, the auxiliary base The map information that response message includes QoS Flow to DRB is established at station.

By in the exemplary embodiment 2 later referring to Fig. 7 description, the assistant base station establishes response message can be with It include: that downlink data of the DRB on Xn interface receives address, it is downlink corresponding with the QoS Flow of the DRB is mapped to One of data receiver address.

By in the exemplary embodiment 1 and 3 for respectively referring to Fig. 6 and Fig. 8 description later, method 400 can also include: Master base station can establish response message according to the assistant base station received, and at least one in following information is sent to assistant base station It is a:

The mark for the DRB that assistant base station determines；

Master base station is the tunnel information of DRB distribution.

These information can carry in the individual message (for example, by the signaling 603 and 803 described later) with to auxiliary It helps base station to send, can also be reconfigured in the assistant base station that is sent to assistant base station and complete message (for example, by describing later Signaling 606 and 806) middle carrying.

Correspondingly, it will be retouched referring to Fig. 5 to according to the method for establishing dual link of disclosure exemplary embodiment It states, the method can execute at assistant base station.

Fig. 5 schematically show according to disclosure exemplary embodiment can be executed at assistant base station for building The flow chart of the method 500 of vertical dual link.As shown in figure 5, method 500 may include step S501 and S502.

In step S501, assistant base station can receive assistant base station from master base station and establish request message, will for request DRB is established on assistant base station.

The type of dual link carrying；

The identification information of QoS Flow；

The mark for the PDU Session that QoS Flow belongs to；

Quality requirement parameter corresponding with the QoS Flow；

Upstream data receives address；

RRC transparent vessel.

Master base station distribution for from assistant base station receive downlink data downlink data receive address except and with energy Enough marks for establishing the corresponding DRB of QoS Flow on assistant base station are (for example, by later referring to the exemplary of Fig. 6 description Embodiment 1)；Or

In step S502, assistant base station can send assistant base station to master base station and establish response message, the auxiliary base The map information that response message includes QoS Flow to DRB is established at station.

By in the exemplary embodiment 1 and 3 for respectively referring to Fig. 6 and Fig. 8 description later, method 500 can also include: Assistant base station can receive at least one of the following information that master base station establishes response message transmission according to the assistant base station:

The mark for the DRB that assistant base station determines；

Master base station is the tunnel information of DRB distribution.

These information can be in the individual message that master base station is sent to assistant base station (for example, by the letter described later Enable 603 and 803) in carry, can also master base station to the assistant base station that assistant base station is sent reconfigure completion message (for example, In the signaling 606 described later and 806) it will carry in.

It below will be respectively in connection with Fig. 6, Fig. 7 and Fig. 8, to the double for establishing of according to an exemplary embodiment of the present 1,2 and 3 The signaling process of connection is described in detail respectively.

Exemplary embodiment 1 describes information, these QoS that master base station notifies the QoS flow to be shunted to assistant base station The downlink receipt in DRB mark (referred to as old DRB mark) and the corresponding Xn interface of the DRB that Flow is mapped to receives tunnel letter Breath.Assistant base station determines the mapping of QoS Flow to DRB, and new DRB identification notification to master base station, if new DRB Mark is different with old DRB mark, and master base station is the downlink receipt reception tunnel on new DRB mark distribution Xn interface, and The tunnel information is sent to assistant base station.Tunnel information contains IP address and tunnel TEID.

Referring to Fig. 6, the signaling process of exemplary embodiment 1 may include:

Signaling 601, master base station send assistant base station and establish request, which has been sent to assistant base station.

Master base station/assistant base station can be LTE base station or the base station 5G gNB.Assuming that master base station and assistant base station all connect It has been connected to the core net of 5G.The equipment that LTE base station and the base station 5G belong to 5G access net.

Master base station determines certain QoS Flow to establish on assistant base station.These QoS Flow may be established in source before It on assistant base station, or establishes on master base station, or the new Deta bearer configured by core net.Assistant base station foundation is asked Seeking message includes the mark of QoS Flow, biography of the PDU Session where QoS Flow in the reception upstream data of core net Defeated layer address and tunnel TEID, message also carry the ability information of UE.Message also carries the class of the connection of master base station decision Type, the type for the dual link established on assistant base station can divide carrying, SCG carrying or auxiliary segmentation carrying, MCG segmentation Signaling.

Specifically, assistant base station establishes request message and carries one or more following information:

The type of ■ dual link carrying, can be arranged to bearer types split bearer types, SCG bearer types, or SCG split bearer types.

The identification information of ■ QoS Flow, such as the mark of the QoS Flow on assistant base station can be established.Main base Standing will indicate under the type of above-mentioned carrying, can have which QoS Flow to be based upon on assistant base station.The mark of QoS Flow Knowledge is that core net is sent to master base station, and core net modifies process by initial context establishment process or initial context, Or the mark quality requirement corresponding with the mark of QoS Flow of QoS Flow is sent to master base station by data connection process.

The mark (PDU Session ID) for the PDU Session that ■ QoS Flow belongs to.

The quality requirement parameter of ■ QoS Flow.The information is the corresponding quality requirement of QoS Flow, may include mark Quasi- 5G quality requirement indicates 5QI, priority ARP, the uplink/downlink maximum rate of GBR traffic, the uplink/downlink of GBR traffic Guaranteed rate.The design parameter of quality requirement, such as resource type, priority level are either contained, data postpone target, wrong The accidentally information such as rate.The mark of QoS Flow and corresponding quality requirement parameter, are from core network to master base station, master base station The value that core net can be transmitted is transmitted directly to assistant base station, or the value transmitted according to core net, determines a new value It is sent to assistant base station.

The mark of ■ DRB.DRB mark is QoS Flow corresponding Data Radio Bearer of the above-mentioned foundation on assistant base station Mark, identified by QoS Flow mark and DRB, assistant base station is it is recognised that on master base station, which QoS Flow mapping The same DRB is arrived.

■ upstream data receives address, carries if it is split, and upstream data receives the uplink that address is master base station distribution Data receiver transport Layer address and Tunnel Identifier (i.e. GTP TEID).If it is SCG carrying and SCG split carrying, upper line number Transport Layer address and Tunnel Identifier are received according to the upstream data that address is core net distribution is received.

■ downlink data receives address, carries if it is SCG split, and message also carries downlink data with receiving transport layer Location and Tunnel Identifier.Downlink data receives the address that address is master base station distribution, for receiving downlink data from assistant base station.It is main Base station receives address to each DRB downlink data for distributing an Xn interface.

■ RRC transparent vessel may include the measurement report of UE in RRC transparent vessel.It can also be MCG split The configuration information of the mark of SRB and/or the layers such as corresponding RLC, MAC is included in the RRC transparent vessel.

The mark for the Data Radio Bearer (DRB) that ■ assistant base station can configure.The mark of DRB is managed collectively by master base station And distribution, it is established in request message in assistant base station, master base station notifies assistant base station, the mark of DRB is currently available that, if auxiliary It helps base station to determine to establish new DRB, the selection one inside the mark for being currently available that DRB is needed, as newly-established DRB Mark.Perhaps the usable range master base station or assistant base station for being pre-configured with the DRB mark of assistant base station and master base station are only It can come to select DRB mark for Data Radio Bearer out of usable range.The information also may be embodied in RRC transparent vessel.

Following table is described when the carrying of foundation is SCG split carrying, and assistant base station establishes request message and includes Content.

Signaling 602, assistant base station send assistant base station to master base station and establish response message.

It includes one or more following information that assistant base station, which establishes response message:

The mark for the QoS Flow that ■ assistant base station receives.The Service Quality that be diverted to assistant base station is determined for master base station Amount stream QoS Flow, assistant base station can determine to receive certain QoS Flow, and refuse certain QoS Flow.It is built in assistant base station In vertical response message, assistant base station notifies master base station, which QoS received, which QoS Flow is had rejected.

The radio bearer DRB mark that ■ assistant base station is established.Assistant base station establishes response message and also needs to carry QoS The corresponding DRB mark of Flow.If established in request message in assistant base station, master base station determines that the dual link type to be established is SCG split carrying, master base station determine which QoS Flow needs to be diverted on assistant base station, and determine the carrying established Type, assistant base station can determine the mapping of QoS Flow to DRB.If being built upon main base before the QoS Flow shunted On standing, master base station receives QoS Flow data from core net, sends data to UE by the DRB on master base station, master base station is determined Determine the mapping of QoS Flow to DRB, later master base station decision will be diverted to these QoS Flow on assistant base station, for SCG split carrying, assistant base station can determine the mapping of QoS Flow to DRB, and assistant base station receives QoS from core net Data are mapped to DRB, data are then divided into two-way by Flow data, wherein a circuit-switched data is sent to UE by assistant base station, separately Outer routing assistant base station is sent to master base station, and master base station is being sent to UE.Assistant base station determine mapping can and master base station The mapping of decision is different.On Xn interface, SCG split is carried, it is therein that UE is sent to by master base station all the way, therefore Master base station needs to distribute an Xn downlink data for the data and receives tunnel number, which is to assist base for a DRB It stands and the mapping of self-determining QoSFlow to DRB is needed to notify master base station, established in response message and carried by assistant base station DRB mark and QoS Flow mark, assistant base station notifies mapping relations to master base station.

■ RRC transparent vessel may include assistant base station to the configuration information of UE in RRC transparent vessel.Master base station handle RRC transparent vessel is transmitted to UE in signaling 604.

Signaling 603, master base station send modification message to assistant base station.

Modifying message includes one or more following information:

■ radio bearer DRB mark.The mark is the DRB mark that assistant base station determines, has been sent to main base in signaling 602 It stands.

■ tunnel information.Master base station is the tunnel information of DRB distribution, and tunnel information contains IP address and tunnel number TEID.On Xn interface, SCG split is carried, master base station, which needs to distribute an Xn downlink data for the data, receives tunnel Taoist monastic name, the tunnel number are for a DRB.

Or above-mentioned two information is reconfigured by 606 assistant base stations and completes message carrying, it is sent to by master base station auxiliary Help base station.In this way, there is no need to the message in signaling 603.Define signaling 603 message the advantages of be can as early as possible data from Assistant base station is sent to master base station, to be sent to UE.

Signaling 604, master base station send RRC configuration request message to UE.

Master base station does not parse the RRC container that assistant base station is sent, and RRC container is transmitted to UE.Master base station can add Its own configuration information to UE, and the configuration information of itself and assistant base station is sent jointly into UE.

Signaling 605, UE send RRC configuration to master base station and complete message.

After UE configuration successful, response message is sent to master base station.The response message can be contained and be configured to master base station The response of information also contains the response to assistant base station configuration information.If necessary, UE also need with new assistant base station into Row random access procedure, and synchronized with new assistant base station.After synchronization, assistant base station can start to send to UE Data.

Signaling 606, master base station reconfigure to assistant base station transmission assistant base station and complete message.

By the configuration at the end UE, successful information notifies assistant base station to master base station.Because UE is confirmation message to master base station It sends, so master base station needs confirmation message to be transmitted to assistant base station.If master base station cannot parse UE to assistant base station The response of configuration information, master base station can also turn UE to the response of the configuration information of assistant base station by way of RRC container Issue assistant base station.

If assistant base station, which reconfigures and completes message, to include following information without the message in signaling 603:

Exemplary embodiment 2 describes the information of the master base station notice QoS flow to be shunted, the corresponding Xn of QoS flow Downlink receipt on interface receives tunnel information to assistant base station.Assistant base station determines the mapping of QoS Flow to DRB, and handle New DRB mark and the DRB identify the reception tunnel information of the downlink receipt on corresponding Xn interface and are sent to master base station.Tunnel letter Breath contains IP address and tunnel TEID.

Referring to Fig. 7, the signaling process of exemplary embodiment 2 may include:

Signaling 701, master base station send assistant base station and establish request, which has been sent to assistant base station.

Master base station determines certain QoS Flow to establish in assistant base station.These QoS Flow may establish auxiliary in source before It helps on base station, or establishes on master base station, or the new Deta bearer configured by core net.Assistant base station establishes request Message includes the mark of QoS Flow, transmission of the PDU Session where QoS Flow in the reception upstream data of core net Layer address and tunnel TEID, message also carry the ability information of UE.Message also carries the type of the connection of master base station decision, The type for the dual link established on assistant base station can divide carrying, SCG carrying or auxiliary segmentation carrying, MCG segmentation letter It enables.

The identification information of ■ QoS Flow, such as the mark of the QoS Flow on assistant base station can be established.Main base Which stand on the assistant base station that indicate to have under the type of above-mentioned carrying QoS Flow to be based upon.The mark of QoS Flow It is that core net is sent to master base station, core net modifies process by initial context establishment process or initial context, or The mark quality requirement corresponding with the mark of QoS Flow of QoS Flow is sent to master base station by person's data connection process.

The mark (PDU Session ID) for the PDU Session that ■ QoS Flow belongs to.

■ downlink data receives address, carries if it is SCG split, and message also carries downlink data with receiving transport layer Location and Tunnel Identifier.Downlink data receives the address that address is master base station distribution, for receiving downlink data from assistant base station.It is main Base station receives address to each QoS Flow downlink data for distributing an Xn interface.Or master base station distributes multiple downlink datas Address is received, downlink data reception address list is carried in the message and is sent to assistant base station, if assistant base station determines to use Different mappings, establishes new DRB, and assistant base station selects a downlink data to receive address as SCG from the list The downlink data of the Xn interface of split receives address, and downlink data is sent to the address.

The mark for the Data Radio Bearer (DRB) that ■ assistant base station can configure.The mark of DRB is managed collectively by master base station And distribution, it is established in request message in assistant base station, master base station notifies assistant base station, the mark of DRB is currently available that, if auxiliary It helps base station to determine to establish new DRB, the selection one inside the mark for being currently available that DRB is needed, as newly-established DRB Mark.The information also may be embodied in RRC transparent vessel.

Signaling 702, assistant base station send assistant base station and establish response message to master base station.

The mark for the QoS Flow that ■ assistant base station receives.The quality stream that be diverted to assistant base station is determined for master base station QoS Flow, assistant base station can determine to receive certain QoS Flow, and refuse certain QoS Flow.It establishes and rings in assistant base station It answers in message, assistant base station notifies master base station, which QoS received, which QoS Flow is had rejected.

The radio bearer DRB mark that ■ assistant base station is established.Assistant base station establishes response message and also needs to carry QoS The corresponding DRB mark of Flow.If established in request message in assistant base station, master base station determines that the dual link type to be established is SCG split carrying, master base station determine which QoS Flow needs to be diverted on assistant base station, and determine the carrying established Type, assistant base station can determine the mapping of QoS Flow to DRB.If being built upon main base before the QoS Flow shunted On standing, master base station receives QoS Flow data from core net, sends data to UE by the DRB on master base station, master base station is determined Determine the mapping of QoS Flow to DRB, later master base station decision will be diverted to these QoS Flow on assistant base station, for SCG split carrying, assistant base station can determine the mapping of QoS Flow to DRB, and assistant base station receives QoS from core net Data are mapped to DRB, data are then divided into two-way by Flow data, wherein a circuit-switched data is sent to UE by assistant base station, separately Outer routing assistant base station is sent to master base station, and master base station is being sent to UE.Assistant base station determine mapping can and master base station The mapping of decision is different.On Xn interface, SCG split is carried, it is therein that UE is sent to by master base station all the way, therefore Master base station needs to distribute an Xn downlink data for the data and receives tunnel number, which is to assist base for a DRB It stands and the mapping of self-determining QoS Flow to DRB is needed to notify master base station, established in response message and taken by assistant base station The mark of the DRB mark and QoS Flow of band, assistant base station notify mapping relations to master base station.

■ Xn downlink data receives address, and multiple QoS Flow may map on a DRB, which is auxiliary What base station determined.For each DRB, a downlink data is corresponded on Xn and receives address, which is the address on master base station, Assistant base station is sent data on the address.In the message of 501 steps, the QoS that master base station is each shunting is contained The downlink data of Flow distribution receives address, and assistant base station determines the mapping of QoS Flow to DRB, and corresponding from QoS Flow Downlink data receive address choice one, receive address as downlink data of the DRB on Xn.

■ RRC transparent vessel may include assistant base station to the configuration information of UE in RRC transparent vessel.Master base station handle RRC transparent vessel is transmitted to UE in step 404.

Signaling 703, master base station send RRC configuration request message to UE.

Signaling 704, UE send RRC configuration and complete message to master base station.

Signaling 705, master base station send assistant base station and reconfigure completion message to assistant base station.

Exemplary embodiment 3 describes the information of the master base station notice QoS Flow to be shunted, and assistant base station determines QoS The mapping of Flow to DRB, and new DRB mark and the DRB are identified the downlink receipt on corresponding Xn interface and receive tunnel Information is sent to master base station.Tunnel information contains IP address and tunnel TEID.

Referring to Fig. 8, the signaling process of exemplary embodiment 3 may include:

Signaling 801, master base station send assistant base station and establish request, which has been sent to assistant base station.

Master base station determines certain QoS Flow to establish in assistant base station.These QoS Flow may establish auxiliary in source before It helps on base station, or establishes on master base station, or the new Deta bearer configured by core net.Assistant base station establishes request Message includes the mark of QoS Flow, the transport layer of the reception upstream data of the PDU Session core net where QoS Flow Address and tunnel TEID, message also carry the ability information of UE.Message also carries the type of the connection of master base station decision, builds The type for founding the dual link on assistant base station can divide carrying, and SCG carrying or auxiliary segmentation carrying, MCG divide signaling.

The mark (PDU Session ID) for the PDU Session that ■ QoS Flow belongs to.

Signaling 802, assistant base station send assistant base station to master base station and establish response message.

■ RRC transparent vessel may include assistant base station to the configuration information of UE in RRC transparent vessel.Master base station handle RRC transparent vessel is transmitted to UE in signaling 804.

Signaling 803, master base station send modification message to assistant base station.

Modifying message includes one or more following information:

■ radio bearer DRB mark.The mark is the DRB mark that assistant base station determines, has been sent to main base in step 402 It stands.

Or above-mentioned two information is reconfigured by 806 assistant base stations and completes message carrying, it is sent to by master base station auxiliary Help base station.In this way, there is no need to the message in signaling 803.The advantages of defining the message of 803 steps be can as early as possible data from Assistant base station is sent to master base station, to be sent to UE.

Signaling 804, master base station send RRC configuration request message to UE.

Signaling 805, UE send RRC configuration and complete message to master base station.

Signaling 806, master base station send assistant base station and reconfigure completion message to assistant base station.

If assistant base station, which reconfigures and completes message, to include following information without the message in signaling 803:

■ radio bearer DRB mark.The mark is the DRB mark that assistant base station determines, has been sent to main base in signaling 802 It stands.

Hereinafter with reference to Fig. 9, retouched to according to the method for requesting SCG to configure of disclosure exemplary embodiment It states, the method can execute at master base station.

Fig. 9 schematically show according to disclosure exemplary embodiment can be executed at master base station for requesting The flow chart of the method 900 of SCG configuration.As shown in figure 9, method 900 may include step S901 and S902.

In step S901, master base station can be sent to assistant base station for requesting the assistant base station of SCG configuration information to be repaired Change request message, the assistant base station modification request message carries instruction information, is used to indicate master base station and needs to obtain SCG configuration Information.

In step S902, master base station can receive the assistant base station modification response message of assistant base station transmission, described auxiliary Base station modification response message is helped to carry the SCG configuration information.

Hereinafter with reference to Figure 10, retouched to according to the method for requesting SCG to configure of disclosure exemplary embodiment It states, the method can execute at assistant base station.

Figure 10 schematically show according to disclosure exemplary embodiment can be executed at assistant base station be used for Request the flow chart of the method 1000 of SCG configuration.As shown in Figure 10, method 1000 may include step S1001 and S1002.

In step S1001, assistant base station can be received from master base station for requesting the assistant base station of SCG configuration information to be repaired Change request message, the assistant base station modification request message carries instruction information, is used to indicate master base station and needs to obtain SCG configuration Information；And

In step S1002, assistant base station can send assistant base station to master base station and modify response message, the auxiliary base Modification response message of standing carries the SCG configuration information.

After receiving the instruction information, assistant base station can be ignored to be taken in the assistant base station modification request message The RRC transparent vessel of band.

It below will be respectively in connection with Figure 11, to the signaling flow according to an exemplary embodiment of the present invention for requesting SCG to configure Journey is described in detail respectively.

The exemplary embodiment describes a kind of method of master base station request SCG configuration.Master base station decision will switch auxiliary UE is switched to purpose assistant base station from source assistant base station by base station.Before the handover, master base station needs obtain newest from assistant base station Supplementary cell group configuration information.The step of message, describes in Figure 11.

Signaling 1101: master base station sends assistant base station modification request message to assistant base station.

Message carries the mark XnAP ID on the Xn interface that master base station is UE distribution.

Assistant base station is the mark XnAP ID on the Xn interface of UE distribution.

Message carries RRC transparent vessel.The transparent vessel contains the configuration information of MCG and the ability configuration information of UE. Normal situation, if containing RRC transparent vessel, assistant base station needs to parse the RRC transparent vessel, and assistant base station can The configuration information of SCG can be modified according to the content that RRC transparent vessel includes.

Assistant base station modification request message also carries instruction information, and instruction information instruction master base station needs to obtain newest The configuration information of SCG on assistant base station.If assistant base station modification request message contains RRC transparent vessel, instruction letter Breath has also indicated that assistant base station needs to ignore the RRC transparent vessel carried in assistant base station modification request message.The instruction information It can be by carrying an individual information element, such as definition " needing to obtain the instruction of SCG configuration information " or " dynamic in message Indicate ", movement instruction is used to show that MeNB initiates the purpose of assistant base station modification request message, under this embodiment, movement Instruction, which can be set, becomes to obtain SCG configuration information.Or the existing information element in assistant base station modification request message Indicate that specific reason is because to obtain SCG configuration information in " reason ".Assistant base station receives the instruction information, needs handle The newest configuration information of SCG on assistant base station is sent to master base station, optionally, if assistant base station modifies request message packet RRC transparent vessel is contained, assistant base station needs to ignore the RRC transparent vessel that assistant base station modification request message includes.

Signaling 1102: assistant base station sends assistant base station modification response message to master base station.

If the message in signaling 1101 carry master base station need to obtain SCG on newest assistant base station with confidence The instruction information of breath, then the message in signaling 1102 carries RRC transparent vessel.It is newest SCG in RRC transparent vessel with confidence Breath.SCG configuration information can be the configuration information to the complete SCG of UE.If it is saturating that the message in signaling 1101 carries RRC Bright container and master base station need to obtain the instruction information of the configuration information of the SCG on newest assistant base station, then assistant base station is neglected Slightly the RRC transparent vessel that request message includes is modified in base station.

Signaling 1103: master base station transmission assistant base station establishes request message and gives purpose assistant base station.1102 are carried in message The configuration information for the SCG that step is obtained from source assistant base station.

Signaling 1104: purpose assistant base station sends assistant base station and establishes response message to master base station.Message carries purpose base The configuration information stood to the SCG of UE.Configuration of the source base station that the configuration information is carried with reference to step 1103 message to the SCG of UE Information, purpose base station produces newest SCG configuration information, and the information is sent and is sent to UE by master base station.

Signaling 1105: master base station sends assistant base station release request and gives source assistant base station.Source assistant base station deletes the upper of UE Hereafter.

Signaling 1106: master base station sends assistant base station and reconfigures completion message to assistant base station.Assistant base station can start Send data.

Hereinafter with reference to Figure 12, the structure of master base station according to an exemplary embodiment of the present invention is described.Figure 12 shows Show the structural frames according to an exemplary embodiment of the present invention executed for establishing the master base station of the method for dual link to meaning property Figure.Master base station 1200 can be used for executing with reference to the method 900 Fig. 4 the method 400 described or described with reference to Fig. 9.For simplicity, Only the schematic structure of the master base station according to disclosure exemplary embodiment is described herein, and is omitted as preceding with reference to figure The details being described in detail in the method 400 of 4 descriptions or the method 900 with reference to Fig. 9 description.

As shown in figure 12, master base station 1200 includes the communication interface 1201 for PERCOM peripheral communication；Processing unit or processor 1202, which can be the combination of individual unit or multiple units, for executing the different step of method；Storage Device 1203, wherein being stored with computer executable instructions, described instruction holds master base station 1200 when being executed by processor 902 Row method 400 or method 900.

In described instruction when being executed by processor 1202, make the exemplary embodiment of 1200 execution method 400 of master base station In, described instruction makes the master base station 1200 execute following operation:

Assistant base station is sent to assistant base station and establishes request message, establishes DRB in assistant base station for requesting；And

It receives assistant base station and establishes response message, it includes QoS Flow to DRB that the assistant base station, which establishes response message, Map information.

In the exemplary embodiment, it may include one or more in following information that the assistant base station, which establishes request message, A (for example, referring to the exemplary embodiment 3 of Fig. 8 description):

The type of dual link carrying；

The identification information of QoS Flow；

The mark for the PDU Session that QoS Flow belongs to；

Quality requirement parameter corresponding with the QoS Flow；

Upstream data receives address；

RRC transparent vessel.

The downlink data for receiving downlink data from assistant base station of master base station distribution receives except address and main base Stand determine DRB corresponding with the QoS Flow that can be established on assistant base station mark (for example, referring to Fig. 6 description show Example property embodiment 1)；Or

The downlink data for receiving downlink data from assistant base station of master base station distribution receives address (for example, referring to Fig. 7 The exemplary embodiment 2 of description)

As previously mentioned, in the exemplary embodiment 2 referring to Fig. 7 description, the assistant base station establishes response message and may be used also To include: that downlink data of the DRB on Xn interface receives address, under it is corresponding with the QoS Flow of the DRB is mapped to One of row data receiver address

As previously mentioned, described instruction is processed in the exemplary embodiment 1 and 3 for respectively referring to Fig. 6 and Fig. 8 description When device 1202 executes, so that master base station 1200 is executed following procedure: response message being established according to the assistant base station received, to auxiliary Base station sends at least one of following information:

The mark for the DRB that assistant base station determines；

Master base station is the tunnel information of DRB distribution.

These information can be carried in individual message (for example, signaling 603 and 803) to send to assistant base station, It can complete to carry in message (for example, signaling 606 and 806) reconfiguring to the assistant base station that assistant base station is sent.

Optionally, make the exemplary of 1200 execution method 900 of master base station when being executed by processor 1202 in described instruction In embodiment, described instruction makes the master base station 1200 execute following operation:

Hereinafter with reference to Figure 13, the structure of assistant base station according to an exemplary embodiment of the present invention is described.Figure 13 Schematically show the knot according to an exemplary embodiment of the present invention executed for establishing the assistant base station of the method for dual link Structure block diagram.Assistant base station 1300 can be used for executing with reference to the method 1000 Fig. 5 the method 500 described or described with reference to Figure 10. For simplicity, only the schematic structure of the master base station according to disclosure exemplary embodiment is described herein, and it is omitted As it is preceding with reference to Fig. 5 described in method 500 or the method 1000 that describes with reference to Figure 10 in the details that had been described in detail.

As shown in figure 13, assistant base station 1300 includes the communication interface 1301 for PERCOM peripheral communication；Processing unit or processing Device 1302, the processor 1302 can be the combination of individual unit or multiple units, for executing the different step of method；It deposits Reservoir 1303, wherein being stored with computer executable instructions, described instruction makes assistant base station when being executed by processor 1302 1300 execute method 500 or method 1000.

In described instruction when being executed by processor 1302, make the exemplary implementation of 1300 execution method 500 of assistant base station In example, described instruction makes the assistant base station 1300 execute following operation:

Assistant base station is received from master base station and establishes request message, establishes DRB in assistant base station for requesting；And

Assistant base station is sent to master base station and establishes response message, and it includes QoS Flow that the assistant base station, which establishes response message, To the map information of DRB.

The type of dual link carrying；

The identification information of QoS Flow；

The mark for the PDU Session that QoS Flow belongs to；

Quality requirement parameter corresponding with the QoS Flow；

Upstream data receives address；

RRC transparent vessel.

As previously mentioned, in the exemplary embodiment 2 referring to Fig. 7 description, the assistant base station establishes response message and may be used also To include: that downlink data of the DRB on Xn interface receives address, under it is corresponding with the QoS Flow of the DRB is mapped to One of row data receiver address.

As previously mentioned, described instruction is processed in the exemplary embodiment 1 and 3 for respectively referring to Fig. 6 and Fig. 8 description When device 1302 executes, assistant base station 1300 is made to execute following procedure: being received from master base station and response is established according to the assistant base station At least one of the following information that message is sent to assistant base station:

The mark for the DRB that assistant base station determines；

Master base station is the tunnel information of DRB distribution.

These information can be taken in master base station into the individual message (for example, signaling 603 and 803) that assistant base station is sent Band can also be reconfigured to the assistant base station that assistant base station is sent in master base station and be completed in message (for example, signaling 606 and 806) It carries.

Optionally, make showing for 1300 execution method 1000 of assistant base station when being executed by processor 1302 in described instruction In example property embodiment, described instruction makes the assistant base station 1300 execute following operation:

After receiving the instruction information, the assistant base station can ignore the assistant base station modification request message The RRC transparent vessel of middle carrying.

The program operated in equipment according to the present invention, which can be through control central processing unit (CPU), to be made to calculate Machine realizes the program of the embodiment of the present invention function.The program or the information handled by the program can be temporarily stored in volatibility Memory (such as random access memory ram), hard disk drive (HDD), nonvolatile memory (such as flash memory) or its In his storage system.

Program for realizing various embodiments of the present invention function can recorde on a computer readable recording medium.It can lead to Crossing makes computer system read the program being recorded in the recording medium and executes these programs to realize corresponding function.This So-called " computer system " at place can be built-in the computer system in the equipment, may include operating system or hardware (such as peripheral equipment)." computer readable recording medium " can be semiconductor recording medium, optical record medium, magnetic recording and be situated between Matter, the in short-term recording medium of dynamic memory program or any other computer-readable recording medium.

It can be by circuit (for example, monolithic or more with the various feature or function modules of equipment in the above-described embodiments Piece integrated circuit) Lai Shixian or execution.The circuit for being designed to carry out this specification described function may include general place Reason device, digital signal processor (DSP), specific integrated circuit (ASIC), field programmable gate array (FPGA) or other can compile Any combination of journey logical device, discrete door or transistor logic, discrete hardware component or above-mentioned device.General procedure Device can be microprocessor, be also possible to any existing processor, controller, microcontroller or state machine.Foregoing circuit can To be digital circuit, it is also possible to analog circuit.There is the new of the existing integrated circuit of substitution because of the progress of semiconductor technology Integrated circuit technique in the case where, these new integrated circuit techniques also can be used in one or more embodiments of the invention To realize.

As above, the embodiment of the present invention is described in detail by reference to attached drawing.But specific structure not office It is limited to above-described embodiment, the present invention also includes any design change without departing from present subject matter.Furthermore it is possible in claim In the range of the present invention is variously changed, it is obtained by being appropriately combined technological means disclosed in different embodiments Embodiment is also included in the technical scope of the present invention.In addition, with the component of same effect described in above-described embodiment It can be substituted for each other.

Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein Can technical characteristic replaced mutually and the technical solution that is formed.

Claims

1. a kind of for connecting the method established, comprising:

It receives assistant base station and establishes response message, it includes that service quality stream QoS Flow is arrived that the assistant base station, which establishes response message, The map information of DRB.

2. according to the method described in claim 1, it includes one in following information that wherein the assistant base station, which establishes request message, It is a or multiple:

The type of dual link carrying；

The identification information of QoS Flow；

Quality requirement parameter corresponding with the QoS Flow；

Downlink data receives address list；

The mark of the available radio bearer of assistant base station.

3. according to the method described in claim 1, the map information of QoS Flow to the DRB contains the mark and QoS of DRB Flow mark.

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

The mark of DRB；

Master base station is that the downlink data of DRB distribution receives address.

5. according to the method described in claim 4, wherein, the information has been reconfigured in the assistant base station sent to assistant base station At being carried in message.

6. according to the method described in claim 1, further include: it further includes in following information that the assistant base station, which establishes response message, At least one:

The mark of DRB；

The corresponding downlink data of DRB receives address.

7. according to the method described in claim 6, the mark of the DRB is that assistant base station determines that the new data established wirelessly are held Carry corresponding mark.

8. according to the method described in claim 3, wherein, the DRB mark is that assistant base station is available from the assistant base station It is elected in the mark of radio bearer.

9. according to the method described in claim 6, wherein, DRB corresponding downlink data reception address is from the downlink It is selected in data receiver address list.

10. a kind of method for requesting supplementary cell group SCG to configure, comprising:

It sends to assistant base station for requesting the assistant base station of SCG configuration information to modify request message, the assistant base station modification Request message carries instruction information, is used to indicate master base station and needs to obtain SCG configuration information；And

It receives the assistant base station that assistant base station is sent and modifies response message, the assistant base station is modified described in response message carrying SCG configuration information.

11. according to the method described in claim 10, wherein the generation of request supplementary cell group SCG configuration process is cut in assistant base station It changes before process.

12. method described in 0 or 11 according to claim 1, wherein master base station is in the assistant base station for being sent to purpose assistant base station It establishes in request message and carries the SCG configuration information.

13. a kind of master base station, comprising:

Communication interface is configured to communicate；

Processor；And

Memory is stored with computer executable instructions, and described instruction makes the master base station execute root when being executed by processor According to method described in any one of claims 1 to 12.