WO2016107196A1

WO2016107196A1 - Method and apparatus for determining handover under same anchor

Info

Publication number: WO2016107196A1
Application number: PCT/CN2015/087939
Authority: WO
Inventors: 吴蕴璐; 和峰; 高音
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-12-31
Filing date: 2015-08-24
Publication date: 2016-07-07
Also published as: CN105813145A

Abstract

Disclosed are a method and apparatus for determining a handover under a same anchor. In the method, a source base station acquires mobility anchor (MA) information of an MA connected to the source base station and MA information of an MA connected to a target base station; and the source base station determines whether a handover is an X2 handover under a same MA according to the MA information of the MA connected to the source base station and the MA information of the MA connected to the target base station. According to the technical scheme provided in the present invention, an X2 handover under a same mobility anchor is determined on a base station side, thereby providing feasibility and flexibility for subsequent processing.

Description

Method and device for judging switching with anchor point

Technical field

The present invention relates to the field of communications, and in particular to a method and apparatus for determining the same anchor point handover.

Background technique

With the continuous evolution of wireless communication technologies and standards, mobile packet services have been greatly developed, and the data throughput capability of single terminals is constantly improving. The Long Term Evolution (LTE) system is used as an example to support data transmission with a maximum downlink rate of 100 Mbps in a 20 M bandwidth. In subsequent enhanced LTE (LTE) networks, the data transmission rate will be further improved. It can even reach 1Gbps.

In order to meet the growing demand for data traffic and the geographically uneven nature of services, operators are also adding low-power nodes (Low Power Nodes, LPN for short) in the process of deploying next-generation communication networks (eg, LTE). Or a small cell (Small Cell) or a micro base station (Pico eNB) for hotspot enhancement. As the number of LPN cells increases, the network deployment environment becomes more complicated and brings some problems. First, because the number of LPN cells is relatively large, when a user equipment (User Equipment, UE for short) or a terminal moves within the network, frequent inter-cell handover (Handover) is caused, resulting in frequent data service terminals or even Problems such as dropped calls, which can also lead to a decline in user data throughput and user experience. At the same time, such frequent handovers may also cause the terminal and the network, especially the core network, to be subjected to a large number of signaling attacks, which may cause system resources to be congested or even paralyzed. In addition, the LPN base stations are all connected to the core network (that is, the S1 interface), and the number of interfaces that the core network needs to process is also increasing. In a specific scenario, such as paging or other broadcast service scenarios, the core network needs to send data on all relevant interfaces, which also puts tremendous pressure on the processing power of the core network. This situation will become more serious as the number of operators and individual LPN cells deployed in the future continues to increase. Therefore, there is a need to provide a solution to alleviate or solve the above problems. A mobile anchor architecture solution provided in the related art can solve the above problem. FIG. 1 is a schematic diagram of a control plane protocol stack when a Mobility Anchor (MA) is deployed according to the related art. On the control plane, the mobility anchor acts as an interface proxy between the base station and the core network, and shields the core network from the existence of the eNB. That is, from the perspective of the base station, the access gateway is equivalent to the mobility management entity (MME); and the MME From the perspective, the access gateway is equivalent to a normal base station. 2 is a schematic diagram of a user plane protocol stack when a mobile anchor is deployed according to the related art. On the user side, the MA acts as the gateway of the access network, and carries data transmission between the serving gateway (S-GW) and the base station. From the perspective of the base station, the MA is equivalent to the S-GW; and from the perspective of the S-GW , MA is equivalent to a normal base station.

If the MA is not introduced, according to the prior art, when the UE needs X2 to switch from the source base station to the target base station, the source base station sends an X2 HANDOVER REQUEST message to the target base station, and the X2 handover request The message may include the service bearer information that needs to be established at the target base station, and includes the GTP TEID information of the service bearer, including the (TEID 1) corresponding to the S-GW. After the UE is handed over to the target base station, the target base station sends a path switch request (PATH SWITCH REQUEST) message to the MME to notify the path switch. The path switch request message may include the service bearer information of the path switch success, including the DL address of the service bearer. And GTP TEID information. Then, the MME sends a PATH SWITCH REQUEST ACKNOWLEDGE message to the target base station, where the MME may optionally include: a changed service bearer UL address and GTP TEID information.

If the UE needs to switch from the source base station to the target base station under the same MA after the mobility anchor is introduced, the source base station needs to send an X2 handover request message to the target base station. If the source base station determines that this is an X2 handover under the same mobility anchor, the network side can optimize the X2 handover procedure. For example, filling in the GTP TEID carried in the confirmation message of the X2 handover request message or the path conversion request message may cause the TEID to be anchored on the MA. For example, the path switching request procedure may be terminated at the MA. Alternatively, the current handover type is indicated to the target base station for subsequent processing. For example, if the target base station determines that this is an X2 handover under the same mobility anchor, the security context information in the path conversion request acknowledgement message is ignored. It can be seen that how the base station side determines the X2 handover under the same mobility anchor point is crucial.

In summary, the related art lacks a problem of how to determine the solution of X2 handover under the same mobility anchor point on the base station side.

Summary of the invention

The embodiment of the invention provides a method and a device for determining the same anchor point handover, so as to at least solve the problem that the related art lacks a solution for determining the X2 handover under the same mobility anchor point.

According to an aspect of the present invention, a method of determining the same anchor point switching is provided.

The method for determining the same anchor point handover according to the embodiment of the present invention includes: the source base station acquires the MA information of the mobile anchor MA connected by itself and the MA information of the MA connected to the target base station; the source base station according to the MA information of the MA connected by itself The MA information of the MA connected to the target base station determines whether it is an X2 switch under the same MA.

Preferably, after the source base station determines whether it is the X2 handover in the same MA, the method further includes: the source base station notifying, by X2 signaling, whether the result of the X2 handover under the same MA is notified to the MA connected to the source base station. And/or, the source base station notifies the target base station whether the result of the X2 handover under the same MA is determined by X2 signaling.

Preferably, the MA information of the MA that the source base station acquires is the following: the source base station acquires the MA information of the MA connected to the MA in the common signaling of the S1 interface that is exchanged between the MAs connected to the source; Acquiring the MA information of the MA connected by itself in the S1 interface dedicated signaling that is exchanged between the MAs connected to the MA; the source base station acquires the MA of the MA connected to the target base station in the X2 interface dedicated signaling that is exchanged with the target base station. The source base station acquires the MA information of the MA connected to the target base station in the X2 interface common signaling that is exchanged with the target base station.

Preferably, the S1 interface common signaling includes one of the following: an S1 SETUP RESPONSE message; a MME CONFIGURATION UPDATE message.

Preferably, the S1 interface UE dedicated signaling includes one of: an initial context request (INITIAL CONTEXT SETUP REQUEST) message; a downlink DOWNLINK NAS TRANSPORT message; a handover request (HANDOVER REQUEST) message.

Preferably, the X2 interface dedicated signaling includes one of: a handover request (HANDOVER REQUEST) message; a handover request acknowledgement (HANDOVER REQUEST ACKNOWLEDGE) message.

Preferably, the X2 interface common signaling includes one of: an X2 SETUP REQUEST message, an X2 SETUP RESPONSE message, an eNB configuration update (eNB CONFIGURATION UPDATE) message, and an eNB configuration update acknowledgement (eNB CONFIGURATION) UPDATE ACKNOWLEDGE) message.

Preferably, the MA information of the MA connected to the MA or the MA information of the MA connected to the target base station includes at least one of the following: a global unique identifier of the MA, a character string of the name, and an identifier of the extended unique identifier MA.

According to another aspect of the present invention, another method of determining the same anchor point switching is provided.

The method for determining the same anchor point handover according to the embodiment of the present invention includes: the target base station acquires the MA information of the MA connected to the MA and the MA information of the MA connected to the source base station; the target base station according to the MA information of the MA connected to the source and the source base station The MA information of the connected MA determines whether it is the X2 switch under the same MA.

Preferably, after the target base station determines whether it is the X2 handover in the same MA, the method further includes: the target base station notifying, by X2 signaling, whether the result of the X2 handover under the same MA is notified to the MA connected to the target base station. And/or, the target base station notifies, by S1 signaling, whether the result of the X2 handover under the same MA is notified to the MA connected to the target base station; and/or, whether the target base station determines whether it is determined by X2 signaling. Notifying the source base station of the result of the X2 handover under the same MA.

Preferably, the target base station acquires the MA information of the MA connected to the MA by the target base station: the target base station acquires the MA information of the MA connected by itself in the public signaling of the S1 interface that is exchanged between the MAs connected to the target base station; The MA information of the MA connected to the MA is obtained by the S1 interface dedicated signaling that is exchanged between the connected MAs; the target base station acquires the MA information of the MA connected to the source base station in the X2 interface dedicated signaling that is exchanged with the source base station; The base station acquires the connection with the source base station in the X2 interface common signaling that interacts with the source base station. MA MA information.

According to still another aspect of the present invention, a judging device for switching with an anchor point is provided.

The determining device for the same anchor point switching according to the embodiment of the present invention includes: an acquiring module, configured to acquire MA information of the MA connected to the MA and MA information of the MA connected to the target base station; and the determining module is set to be based on the MA connected by itself The MA information and the MA information of the MA connected to the target base station determine whether it is an X2 handover under the same MA.

Preferably, the apparatus further includes: a notification module, configured to notify, by X2 signaling, whether the result of the X2 handover under the same MA is notified to the MA connected to the source base station; and/or, the source base station passes the X2 letter Let the determined base station notify the target base station of the result of the X2 handover under the same MA.

Preferably, the acquiring module is configured to acquire the MA information of the MA that is connected to the MA, and the source base station obtains the MA information of the MA connected to the MA in the common signaling of the S1 interface that is exchanged between the MAs connected to the MA; Acquiring the MA information of the MA connected by itself in the S1 interface dedicated signaling that is exchanged between the MAs connected to the MA; the source base station acquires the MA of the MA connected to the target base station in the X2 interface dedicated signaling that is exchanged with the target base station. The source base station acquires the MA information of the MA connected to the target base station in the X2 interface common signaling that is exchanged with the target base station.

According to still another aspect of the present invention, another means for judging the same anchor point switching is provided.

The determining device for the same anchor point switching according to the embodiment of the present invention includes: an obtaining module, configured to acquire the MA information of the MA connected to the MA and the MA information of the MA connected to the source base station; and the determining module is set to be based on the MA connected by itself The MA information and the MA information of the MA connected to the source base station determine whether it is an X2 switch under the same MA.

Preferably, the apparatus further includes: a notification module, configured to notify, by X2 signaling, whether the result of the X2 handover under the same MA is notified to the MA connected to the target base station; and/or, by S1 signaling Determining whether the result of the X2 handover under the same MA is notified to the MA connected to the target base station; and/or, whether the determined result of the X2 handover under the same MA is notified to the source base station by X2 signaling .

Preferably, the acquiring module is configured to obtain the MA information of the MA that is connected to the UE, and the MA information of the MA that is connected to the MA is obtained by the target base station in the S1 interface common signaling that is exchanged between the MAs connected to the MA; Acquiring the MA information of the MA connected to the MA in the S1 interface dedicated signaling that is exchanged between the MAs connected to the MA; the target base station acquires the MA of the MA connected to the source base station in the X2 interface dedicated signaling that interacts with the source base station. Information: The target base station acquires the MA information of the MA connected to the source base station in the X2 interface common signaling that is exchanged with the source base station.

According to the embodiment of the present invention, the source base station obtains the MA information of the mobile anchor MA connected to the MA and the MA information of the MA connected to the target base station; the source base station according to the MA information of the MA connected to the MA and the MA of the MA connected to the target base station. The information is judged to be the X2 handover under the same MA, which solves the problem that the related art lacks a solution for the base station side to determine the X2 handover under the same mobility anchor point, thereby implementing the same mobile from the base station side. The X2 switching under the anchor point is judged, which provides feasibility and flexibility for subsequent processing.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of a control plane protocol stack when a mobile anchor is deployed according to the related art;

2 is a schematic diagram of a user plane protocol stack when a mobile anchor is deployed according to the related art;

3 is a flowchart of a method for determining a switchover of an anchor point according to an embodiment of the present invention;

4 is a flowchart of another method for determining the same anchor point switching according to an embodiment of the present invention;

5 is a flowchart of acquiring MA information of an MA by using a S1 setup response message when a base station establishes an S1 connection with an MA according to a preferred embodiment of the present invention;

6 is a flowchart of a base station acquiring MA information of an MA by using an initial context request message according to a preferred embodiment of the present invention;

7 is a flowchart of MA information of an MA that is mutually connected in an X2 setup request message and/or an X2 setup response message when an X2 connection is established between base stations according to a preferred embodiment of the present invention;

FIG. 8 is a diagram of an X2 handover request message or a handover request acknowledgement message according to a preferred embodiment of the present invention. Flowchart of MA information of MAs connected to each other;

9 is a flowchart of an X2 handover between a UE under a same mobility anchor point according to a preferred embodiment of the present invention;

10 is a flowchart of an X2 handover between a UE under the same mobility anchor point according to a preferred embodiment of the present invention;

11 is a flowchart of an X2 handover between a UE under the same mobility anchor point according to a preferred embodiment of the present invention;

FIG. 12 is a structural block diagram of a judging device for anchor point switching according to an embodiment of the present invention; FIG.

FIG. 13 is a structural block diagram of a judging device for anchor point switching according to a preferred embodiment of the present invention; FIG.

FIG. 14 is a structural block diagram of another apparatus for determining the same anchor point switching according to an embodiment of the present invention; FIG.

Figure 15 is a block diagram showing the structure of another means for determining the same anchor point switching according to a preferred embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

FIG. 3 is a flowchart of a method for determining the same anchor point handover according to an embodiment of the present invention. As shown in FIG. 3, the method may include the following processing steps:

Step S302: The source base station acquires the MA information of the mobile anchor MA connected by itself and the MA information of the MA connected to the target base station;

Step S304: The source base station determines whether it is an X2 handover under the same MA according to the MA information of the MA connected to the MA and the MA information of the MA to which the target base station is connected.

The related art lacks a solution for how the base station side can determine the X2 handover under the same mobility anchor point. The method shown in FIG. 3 is used to obtain the MA information of the MA connected to the base station and the MA information of the MA connected to the peer base station to determine whether it is the X2 handover under the same MA, thereby solving the related technology. There is a lack of a solution on the base station side to determine the X2 handover solution under the same mobility anchor point, and thus the X2 handover under the same mobility anchor point is judged from the base station side, which provides feasibility for subsequent processing. With flexibility.

In a preferred implementation, the MA information of the MA that is connected to the MA or the MA information of the MA that is connected to the target base station may include, but is not limited to, at least one of the following:

(1) The globally unique identifier of the MA;

(2) a string of names;

(3) The extended unique identifier of the MA.

Preferably, after the source base station determines whether it is the X2 handover under the same MA, the source base station may further include at least one of the following operations:

Operation 1. The source base station notifies, by X2 signaling, whether the result of the X2 handover in the same MA is notified to the MA connected to the source base station; for example, the source base station determines in the X2 handover request message sent by the source base station. Whether to notify the MA of the information of the X2 switch under the same MA;

Operation 2: The source base station notifies the target base station whether the result of the X2 handover under the same MA is determined by X2 signaling. For example, the source base station notifies the target base station whether the X2 handover information under the same MA is determined in the X2 handover request message sent by the source base station.

Preferably, in step S304, the source base station acquires the MA information of the MA connected by itself, and may include one of the following manners:

The method is as follows: The source base station obtains the MA information of the MA connected to the MA in the public signaling of the S1 interface that is exchanged between the MAs connected to the MA; for example, the source base station sends the S1 connection to the MA, and the MA sends the MA information to the source base station. Notifying the base station of the MA information of the MA connected to the source base station in the S1 setup response message;

Manner 2: The source base station acquires the MA information of the MA connected to the source station in the S1 interface-specific signaling that is exchanged between the MAs connected to the MA; for example, the source base station acquires the MA information of the MA connected to the source base station by using the initial context request message.

In the third embodiment, the source base station acquires the MA information of the MA connected to the target base station in the X2 interface dedicated signaling that is exchanged with the target base station; for example, the target base station may obtain the connection with the source base station in the X2 handover request message sent by the source base station. The MA information of the MA, and the source base station may also obtain the MA information of the MA connected to the target base station in the X2 handover request acknowledgement message sent by the target base station;

In the fourth embodiment, the source base station acquires the MA information of the MA connected to the target base station in the X2 interface common signaling that is exchanged with the target base station; for example, when the X2 interface is established between the source base station and the target base station, the request message is established in X2. And or X2 establishes the MA information of the MAs that are mutually connected in the response message, or the MA information of the MAs that are mutually connected in the eNB configuration update message and/or the eNB configuration update confirmation message between the source base station and the target base station.

In a preferred implementation process, the foregoing S1 interface common signaling may include, but is not limited to, one of the following:

(1) S1 SETUP RESPONSE message;

(2) Mobile Management Entity Configuration Update (MME CONFIGURATION UPDATE) message.

In the preferred implementation process, the foregoing S1 interface UE dedicated signaling may include, but is not limited to, one of the following:

(1) Initial context request (INITIAL CONTEXT SETUP REQUEST) message;

(2) Downlink non-access layer transmission (DOWNLINK NAS TRANSPORT) message;

(3) S1 HANDOVER REQUEST message.

In a preferred implementation process, the foregoing X2 interface dedicated signaling may include, but is not limited to, one of the following:

(1) X2 HANDOVER REQUEST message;

(2) X2 HANDOVER REQUEST ACKNOWLEDGE message.

In a preferred implementation process, the above X2 interface common signaling includes one of the following:

(1) X2 SETUP REQUEST message;

(2) X2 SETUP RESPONSE message;

(3) eNB configuration update (eNB CONFIGURATION UPDATE) message;

(4) eNB Configuration Update Confirmation (eNB CONFIGURATION UPDATE ACKNOWLED GE) message.

FIG. 4 is a flowchart of another method for determining the same anchor point switching according to an embodiment of the present invention. As shown in FIG. 4, the method may include the following processing steps:

Step S402: The target base station acquires the MA information of the MA connected to the MA and the MA information of the MA to which the source base station is connected.

Step S404: The target base station determines whether it is an X2 handover under the same MA according to the MA information of the MA connected to the MA and the MA information of the MA connected to the source base station.

(1) The globally unique identifier of the MA;

(2) a string of names;

(3) The extended unique identifier of the MA.

Preferably, in step S404, after the target base station determines whether it is the X2 switch under the same MA, To include at least one of the following:

Operation 1. The target base station notifies, by X2 signaling, whether the result of the X2 handover under the same MA is notified to the MA connected to the target base station; for example, whether the target base station determines whether it is in the X2 handover request acknowledgement message. The information of the X2 switch under the same MA is notified to the MA;

Operation 2: The target base station notifies, by S1 signaling, whether the result of the X2 handover under the same MA is notified to the MA connected to the target base station; for example, whether the target base station determines whether it is in the S1 path conversion request message. The information of the X2 switch under the same MA is notified to the MA;

Operation 3: The target base station notifies the source base station whether the result of the X2 handover under the same MA is determined by X2 signaling; for example, whether the target base station determines whether it is the same in the X2 handover request message sent by the target base station. The information of the X2 handover under the MA is notified to the source base station.

Preferably, in step S404, the target base station acquires the MA information of the MA connected by itself, and may include one of the following manners:

Manner 1: The target base station acquires the MA information of the MA connected to itself by using the common signaling of the S1 interface that is exchanged between the MAs connected to the MA.

Manner 2: The target base station acquires the MA information of the MA connected to itself by using the S1 interface dedicated signaling that is exchanged between the MAs connected to the MA.

Manner 3: The target base station acquires the MA information of the MA connected to the source base station in the X2 interface dedicated signaling that is exchanged with the source base station;

In the fourth method, the target base station acquires the MA information of the MA connected to the source base station in the public signaling of the X2 interface that is exchanged with the source base station.

(1) S1 SETUP RESPONSE message;

(1) Initial context request (INITIAL CONTEXT SETUP REQUEST) message;

(2) Downlink non-access layer transmission (DOWNLINK NAS TRANSPORT) message;

(3) S1 HANDOVER REQUEST message.

(1) X2 HANDOVER REQUEST message;

(2) X2 HANDOVER REQUEST ACKNOWLEDGE message.

(1) X2 SETUP REQUEST message;

(2) X2 SETUP RESPONSE message;

(3) eNB configuration update (eNB CONFIGURATION UPDATE) message;

The above preferred implementation process will be further described below in conjunction with the following preferred embodiments.

Preferred embodiment 1

The base station can obtain the MA information in the public signaling of the S1 interface that interacts with the MA.

The above S1 interface common signaling may include but is not limited to one of the following:

(1) S1 SETUP RESPONSE message;

(2) MME configuration update (MME CONFIGURATION UPDATE) message.

In the preferred embodiment, the base station acquires the MA information of the MA through the S1 establishment response message when establishing the S1 connection with the MA.

FIG. 5 is a flowchart of obtaining MA information of an MA through a S1 setup response message when a base station establishes an S1 connection with an MA according to a preferred embodiment of the present invention. As shown in FIG. 5, the process may include the following processing steps:

Step S502: During the process of establishing an S1 connection with the MA, the MA notifies the base station of its own MA information.

After the SCTP connection for the S1 connection between the base station and the MA is established, the base station sends an S1 SETUP REQUEST message to the MA. The MA returns an S1 SETUP RESPONSE message to the base station. The MA carries the MA information in the S1 setup response message sent to the base station.

In a preferred implementation process, the MA information of the self-connected MA may include, but is not limited to, at least one of the following:

(1) The globally unique identifier of the MA;

(2) a string of names;

(3) The extended unique identifier of the MA.

Preferred embodiment two

The base station can obtain the MA information in the S1 interface dedicated signaling that interacts with the MA.

The S1 interface dedicated signaling may include but is not limited to one of the following:

(1) Initial context request (INITIAL CONTEXT SETUP REQUEST) message;

(2) Downlink NAS Transport (DOWNLINK NAS TRANSPORT) message;

(3) S1 HANDOVER REQUEST message.

In the preferred embodiment, the base station obtains the MA information of the MA mainly through the initial context request message.

6 is a flow chart of a base station acquiring MA information of an MA through an initial context request message according to a preferred embodiment of the present invention. As shown in FIG. 6, the process may include the following processing steps:

Step S602: After the SCTP connection for the S1 connection between the base station and the MA is established, the base station sends an S1 setup request message to the MA, and the MA forwards the S1 setup request message to the MME. The MME replies to the MA with an S1 setup response message, and then the MA forwards the S1 setup response message to the base station, thereby establishing an S1 connection between the base station and the MA and between the MA and the MME.

Step S604: The base station sends an initial UE message (INITIAL UE MESSAGE) message to the MA, and the MA forwards the initial UE message to the MME.

Step S606: The MME sends an initial context setup request (INITIAL CONTEXT SETUP REQUEST) message to the MA, and the MA parses the initial context setup request message, and carries the MA information of the MA in the initial context setup request message sent to the base station.

(1) The globally unique identifier of the MA;

(2) a string of names;

(3) The extended unique identifier of the MA.

Preferred embodiment three

The base station can obtain the MA information of the MA connected to the peer base station in the common signaling of the X2 interface that is exchanged with the base station.

The above X2 interface common signaling may include but is not limited to one of the following:

(1) X2 SETUP REQUEST message;

(2) X2 SETUP RESPONSE message;

(3) eNB configuration update (eNB CONFIGURATION UPDATE) message;

(4) eNB Configuration Update Confirmation (eNB CONFIGURATION UPDATE ACKNOWLEDGE) message.

In the preferred embodiment, when the X2 connection between the base stations is established, the MA information of the MAs connected to each other may be exchanged in the X2 setup request message and/or the X2 setup response message.

FIG. 7 is a flowchart of MA information of an MA that is mutually connected in an X2 setup request message and/or an X2 setup response message when an X2 connection is established between base stations according to a preferred embodiment of the present invention. As shown in FIG. 7, the process may include the following processing steps:

Step S702: After the establishment of the SCTP connection for the X2 connection between the base stations, the base station sends an X2 SETUP REQUEST message to the candidate base station, where the X2 setup request message carries the MA of the MA connected by the base station. information.

In a preferred implementation process, the MA information of the MA connected by the foregoing base station may include, but is not limited to, at least one of the following:

(1) The globally unique identifier of the MA;

(2) a string of names;

(3) The extended unique identifier of the MA.

Step S704: The candidate base station returns an X2 SETUP RESPONSE message to the base station, where the X2 setup response message carries the MA information of the MA connected by the candidate base station.

In the preferred implementation, the MA information of the MA connected by the candidate base station may include, but is not limited to, at least one of the following:

(1) The globally unique identifier of the MA;

(2) a string of names;

(3) The extended unique identifier of the MA.

Of course, the base station may also carry the MA information of the MA connected by the base station in the eNB CONFIGURATION UPDATE message sent to the opposite base station. The peer base station may also carry the MA information of the MA connected to the peer base station in the eNB Configuring CONFIGURATION UPDATE ACKNOWLEDGE message.

Preferred embodiment four

The base station can obtain the MA information of the MA connected to the peer base station in the X2 interface dedicated signaling that is exchanged between the base stations.

The above X2 interface common signaling may include, but is not limited to, an X2OVER REQUEST message.

In the preferred embodiment, the MA information of the MAs connected to each other can be exchanged through an X2 handover request message or a handover request acknowledgement (HANDOVER REQUEST ACKNOWLEDGE) message.

FIG. 8 is a flowchart of MA information of an MA that is mutually connected by an X2 handover request message or a handover request acknowledgement message according to a preferred embodiment of the present invention. As shown in FIG. 8, the process may include the following processing steps:

Step S802: After the SCTP connection for the X2 connection between the base stations is established, the source base station sends an X2 setup request message to the target base station. The target base station replies to the source base station with an X2 setup response message, thereby establishing an X2 interface between the base stations.

Step S804: The source base station sends an X2 handover request message to the target base station, where the MA information of the MA connected by the active base station is carried in the X2 handover request message.

In a preferred implementation, the MA information of the MA connected to the source base station may include, but is not limited to, at least one of the following:

(1) The globally unique identifier of the MA;

(2) a string of names;

(3) The extended unique identifier of the MA.

Step S806: The target base station completes the handover preparation, and sends an X2 handover request acknowledgement message to the source base station, where the X2 handover request acknowledgement message carries the MA information of the MA connected by the target base station.

In a preferred implementation, the MA information of the MA connected by the target base station may include, but is not limited to, at least one of the following:

(1) The globally unique identifier of the MA;

(2) a string of names;

(3) The extended unique identifier of the MA.

Preferred embodiment five

In the preferred embodiment, it may be determined by the source base station whether it is an X2 handover under the same MA.

The source base station may obtain the MA information of the MA connected to itself according to the specific operation steps mentioned in the foregoing preferred embodiment 1 and/or the foregoing preferred embodiment 2.

The source base station may obtain the MA information of the MA connected to the target base station according to the specific operation steps mentioned in the foregoing preferred embodiment 3 and/or the foregoing preferred embodiment 4.

Then, the source base station determines whether it is the X2 handover under the same MA according to the MA information of the MA connected to the MA and the MA information of the MA to which the target base station is connected.

Preferred embodiment six

In the preferred embodiment, after the source base station determines whether it is the X2 handover in the same MA, the source base station notifies the MA of the X2 handover information under the same MA through X2 signaling, and further can pass the X2 signaling. The information about whether the X2 handover under the same MA is notified to the target base station.

It should be noted that the above MA has an X2 interface proxy function.

FIG. 9 is a flowchart of an X2 handover between a UE under a same mobility anchor point according to a preferred embodiment of the present invention. As shown in FIG. 9, the process may include the following processing steps:

Step S902: After the source base station and the MA and the SCTP connection for the X2 connection between the MA and the target base station are established, an X2 connection is established between the source base station and the MA and between the MA and the target base station.

Step S904: The source base station sends an X2 handover request message to the MA, and the MA forwards the X2 handover request message to the target base station, where the X2 handover request message carries information about whether it is an X2 handover under the same MA.

Step S906: The target base station returns a handover request acknowledgement message to the MA, and then the MA forwards the handover request acknowledgement message to the source base station.

Preferred embodiment seven

In a preferred embodiment, it is determined by the target base station whether it is an X2 handover under the same MA.

The target base station may obtain the MA information of the MA connected to itself according to the specific operation steps mentioned in the foregoing preferred embodiment 1 and/or the foregoing preferred embodiment 2.

The target base station may obtain the MA information of the MA connected to the source base station according to the specific operation steps mentioned in the foregoing preferred embodiment 3 and/or the foregoing preferred embodiment 4.

Then, the target base station determines whether it is the X2 handover under the same MA according to the MA information of the MA connected to the MA and the MA information of the MA to which the source base station is connected.

Preferred embodiment eight

In the preferred embodiment, after the target base station determines whether it is the X2 handover in the same MA, the target base station notifies the MA of the information of the X2 handover under the same MA through X2 signaling, and thus can be in the X2 signaling. Whether the lieutenant will notify the source base station of the information of the X2 handover under the same MA.

It should be noted that the above MA has an X2 interface proxy function.

10 is a flow chart of an X2 handover between a UE under the same mobility anchor point according to a preferred embodiment of the present invention. As shown in FIG. 10, the process may include the following processing steps:

Step S1002: After the source base station and the MA and the SCTP connection for the X2 connection between the MA and the target base station are established, an X2 connection is established between the source base station and the MA and between the MA and the target base station.

Step S1004: The source base station sends an X2 handover request message to the MA, and then the MA forwards the X2 handover request message to the target base station.

Step S1006: The target base station returns a handover request acknowledgement message to the MA, and the MA forwards the handover request acknowledgement message to the source base station, where the X2 handover request acknowledgement message carries information of whether it is an X2 handover under the same MA.

Preferred embodiment nine

In the preferred embodiment, after the target base station determines whether it is the X2 handover in the same MA, the target base station notifies the MA of whether the information of the X2 handover in the same MA is in the S1 signaling.

It should be noted that the above MA has an X2 interface proxy function.

11 is a flow chart of X2 handover between UEs under the same mobility anchor point according to a preferred embodiment of the present invention. As shown in FIG. 11, the process may include the following processing steps:

Step S1102: After the source base station and the MA and the SCTP connection for the X2 connection between the MA and the target base station are established, an X2 connection is established between the source base station and the MA and between the MA and the target base station.

Step S1104: The source base station sends an X2 handover request message to the MA, and then the MA forwards the X2 handover request message to the target base station.

Step S1106: The target base station returns a handover request acknowledgement message to the MA, and the MA forwards the handover request acknowledgement message to the source base station.

Step S1108: The target base station sends a path switching request message to the MA, where the path switching request message carries information about whether the target base station determines X2 handover under the same MA.

Step S1110: The MA replies to the target base station with a path switch request acknowledgement message.

FIG. 12 is a structural block diagram of a judging device for anchor point switching according to an embodiment of the present invention. The apparatus may be located in the source base station. As shown in FIG. 12, the apparatus for determining the anchor point handover may include: an obtaining module 10 configured to acquire MA information of the MA connected to the MA and MA information of the MA connected to the target base station; The determining module 20 is configured to determine whether it is an X2 switch under the same MA according to the MA information of the MA connected to the MA and the MA information of the MA connected to the target base station.

The device shown in FIG. 12 solves the problem that the lack of a solution on the base station side to determine the X2 handover under the same mobility anchor point is solved in the related art, thereby implementing the same mobile anchor point from the base station side. The X2 switch is judged to provide feasibility and flexibility for subsequent processing.

(1) The globally unique identifier of the MA;

(2) a string of names;

(3) The extended unique identifier of the MA.

Preferably, as shown in FIG. 13, the apparatus may further include: a notification module 30 configured to notify, by X2 signaling, whether the result of the X2 handover under the same MA is notified to the MA connected to the source base station; and / /, the source base station informs the target base station whether the result of the X2 handover under the same MA is determined by X2 signaling.

Preferably, the obtaining module 10, configured to obtain the MA information of the MA connected to itself, may include one of the following modes:

(1) S1 SETUP RESPONSE message;

(1) Initial context request (INITIAL CONTEXT SETUP REQUEST) message;

(2) Downlink non-access layer transmission (DOWNLINK NAS TRANSPORT) message;

(3) S1 HANDOVER REQUEST message.

(1) X2 HANDOVER REQUEST message;

(2) X2 HANDOVER REQUEST ACKNOWLEDGE message.

(1) X2 SETUP REQUEST message;

(2) X2 SETUP RESPONSE message;

(3) eNB configuration update (eNB CONFIGURATION UPDATE) message;

FIG. 14 is a structural block diagram of another apparatus for determining the same anchor point switching according to an embodiment of the present invention. The device may be located at the target base station. As shown in FIG. 14 , the device for determining the same anchor point may include: an obtaining module 40, configured to acquire the MA information of the MA connected to the MA and the MA information of the MA connected to the source base station; The module 50 is configured to determine whether it is an X2 switch under the same MA according to the MA information of the MA connected to the MA and the MA information of the MA connected to the source base station.

(1) The globally unique identifier of the MA;

(2) a string of names;

(3) The extended unique identifier of the MA.

Preferably, as shown in FIG. 15, the apparatus may further include: a notification module 60 configured to notify, by X2 signaling, whether the result of the X2 handover under the same MA is notified to the MA connected to the target base station; and Or, by S1 signaling, it is determined whether the result of the X2 handover under the same MA is notified to the MA connected to the target base station; and/or, whether it is determined by X2 signaling to be the same MA. The result of the X2 handover is notified to the source base station.

Preferably, the acquiring module 40, configured to obtain the MA information of the MA connected to itself, may include one of the following modes:

(1) S1 SETUP RESPONSE message;

(1) Initial context request (INITIAL CONTEXT SETUP REQUEST) message;

(2) Downlink non-access layer transmission (DOWNLINK NAS TRANSPORT) message;

(3) S1 HANDOVER REQUEST message.

(1) X2 HANDOVER REQUEST message;

(2) X2 HANDOVER REQUEST ACKNOWLEDGE message.

(1) X2 SETUP REQUEST message;

(2) X2 SETUP RESPONSE message;

(3) eNB configuration update (eNB CONFIGURATION UPDATE) message;

From the above description, it can be seen that the above embodiments achieve the following technical effects (it is required that the effects are achievable by some preferred embodiments): the technical solution provided by the embodiment of the present invention is solved. In the related art, there is a problem of how to determine the solution of the X2 handover under the same mobility anchor point on the base station side, thereby realizing the judgment of the X2 handover under the same mobility anchor point from the base station side, which provides a solution for subsequent processing. Feasibility and flexibility.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The present invention is susceptible to various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

As described above, the method and apparatus for determining the same anchor point handover provided by the embodiment of the present invention have the following beneficial effects: the X2 handover under the same mobility anchor point is judged from the base station side, which provides feasible for subsequent processing. Sex and flexibility.

Claims

A method for judging the same anchor point switching includes:

The source base station acquires the MA information of the mobile anchor MA connected by itself and the MA information of the MA connected to the target base station;

The source base station determines whether it is an X2 handover under the same MA according to the MA information of the MA connected to the MA and the MA information of the MA to which the target base station is connected.
The method according to claim 1, wherein after the source base station determines whether it is the X2 handover in the same MA, the method further includes:

The source base station notifies, by X2 signaling, whether the result of the X2 handover in the same MA is notified to the MA connected to the source base station; and/or,

The source base station notifies, by X2 signaling, whether the result of the X2 handover under the same MA is notified to the target base station.
The method according to claim 1, wherein the acquiring, by the source base station, the MA information of the MA connected to the self includes one of the following:

Obtaining, by the source base station, the MA information of the MA connected to the MA in the S1 interface common signaling that is exchanged with the MA that is connected to the source;

Obtaining, by the source base station, the MA information of the MA connected to the MA in the S1 interface dedicated signaling that is exchanged with the MA that is connected to the source;

Obtaining MA information of the MA connected to the target base station in the X2 interface dedicated signaling that is exchanged with the target base station;

The source base station acquires MA information of the MA connected to the target base station in the X2 interface common signaling that is exchanged with the target base station.
The method of claim 3, wherein the S1 interface common signaling comprises one of the following:

S1 establishes a response S1 SETUP RESPONSE message;

The mobility management entity configuration updates the MME CONFIGURATION UPDATE message.
The method of claim 3, wherein the S1 interface UE dedicated signaling comprises one of the following:

Initial context request INITIAL CONTEXT SETUP REQUEST message;

The downlink non-access stratum transmits a DOWNLINK NAS TRANSPORT message;

Switch request HANDOVER REQUEST message.
The method of claim 3 wherein said X2 interface dedicated signaling comprises one of:

Switching request HANDOVER REQUEST message;

The handover request acknowledges the HANDOVER REQUEST ACKNOWLEDGE message.
The method of claim 3 wherein said X2 interface common signaling comprises one of:

X2 establishes a request X2 SETUP REQUEST message;

X2 establishes a response X2 SETUP RESPONSE message;

The eNB configures an update eNB CONFIGURATION UPDATE message;

The eNB configuration update acknowledges the eNB CONFIGURATION UPDATE ACKNOWLEDGE message.
The method according to any one of claims 1 to 7, wherein the MA information of the self-connected MA or the MA information of the MA connected to the target base station includes at least one of the following: a global unique identifier of the MA , the name of the string, the extended unique identifier of the identity of the MA.
A method for judging the same anchor point switching includes:

The target base station acquires the MA information of the mobile anchor MA connected to itself and the MA information of the MA connected to the source base station;

The target base station determines whether it is an X2 handover under the same MA according to the MA information of the MA connected to the MA and the MA information of the MA to which the source base station is connected.
The method according to claim 9, wherein after the target base station determines whether it is the X2 handover in the same MA, the method further includes:

Determining, by the X2 signaling, whether the result of the X2 handover in the same MA is notified to the MA connected to the target base station by using X2 signaling; and/or,

Determining, by the S1 signaling, whether the result of the X2 handover in the same MA is notified to the MA connected to the target base station by using S1 signaling; and/or,

And the target base station notifies, by using X2 signaling, whether the result of the X2 handover in the same MA is notified to the source base station.
The method according to claim 9, wherein the acquiring, by the target base station, the MA information of the MA connected to the self includes one of the following:

Obtaining, by the target base station, the MA information of the MA connected to the MA in the public signaling of the S1 interface that is exchanged between the MAs that are connected to the MA;

Obtaining, by the target base station, the MA information of the MA connected to the MA in the S1 interface dedicated signaling that is exchanged between the MAs that are connected to the MA;

Obtaining, by the target base station, the MA information of the MA connected to the source base station in the X2 interface dedicated signaling that is exchanged with the source base station;

The target base station acquires MA information of the MA connected to the source base station in the X2 interface common signaling that is exchanged with the source base station.
The method of claim 11 wherein said S1 interface common signaling comprises one of:

S1 establishes a response S1 SETUP RESPONSE message;

The mobility management entity configuration updates the MME CONFIGURATION UPDATE message.
The method of claim 11, wherein the S1 interface UE dedicated signaling comprises one of the following:

Initial context request INITIAL CONTEXT SETUP REQUEST message;

The downlink non-access stratum transmits a DOWNLINK NAS TRANSPORT message;

Switch request HANDOVER REQUEST message.
The method of claim 11 wherein said X2 interface dedicated signaling comprises one of:

Switching request HANDOVER REQUEST message;

The handover request acknowledges the HANDOVER REQUEST ACKNOWLEDGE message.
The method of claim 11 wherein said X2 interface common signaling comprises one of:

X2 establishes a request X2 SETUP REQUEST message;

X2 establishes a response X2 SETUP RESPONSE message;

The eNB configures an update eNB CONFIGURATION UPDATE message;

The eNB configuration update acknowledges the eNB CONFIGURATION UPDATE ACKNOWLEDGE message.
The method according to any one of claims 9 to 15, wherein the MA information of the self-connected MA or the MA information of the MA connected to the target base station includes at least one of the following: a globally unique identifier of the MA , the name of the string, the extended unique identifier of the identity of the MA.
A judging device for switching with an anchor point, comprising:

The acquiring module is configured to obtain the MA information of the mobile anchor MA connected to the MA and the MA information of the MA connected to the target base station;

The determining module is configured to determine whether the X2 switching in the same MA is based on the MA information of the MA connected to the MA and the MA information of the MA connected to the target base station.
The apparatus of claim 17 wherein said apparatus further comprises:

a notification module, configured to notify, by X2 signaling, whether the result of the X2 handover under the same MA is notified to the MA connected to the source base station; and/or, the source base station passes X2 signaling Determining whether the result of the X2 handover under the same MA is notified to the target base station.
The apparatus according to claim 17, wherein the obtaining module, configured to acquire MA information of the self-connected MA, comprises one of the following:

Obtaining, by the source base station, the MA information of the MA connected to the MA in the S1 interface common signaling that is exchanged with the MA that is connected to the source;

Obtaining, by the source base station, the MA information of the MA connected to the MA in the S1 interface dedicated signaling that is exchanged with the MA that is connected to the source;

Obtaining MA information of the MA connected to the target base station in the X2 interface dedicated signaling that is exchanged with the target base station;

The source base station acquires MA information of the MA connected to the target base station in the X2 interface common signaling that is exchanged with the target base station.
The apparatus of claim 19, wherein the S1 interface common signaling comprises one of the following:

S1 establishes a response S1 SETUP RESPONSE message;

The mobility management entity configuration updates the MME CONFIGURATION UPDATE message.
The apparatus of claim 19, wherein the S1 interface UE dedicated signaling comprises one of the following:

Initial context request INITIAL CONTEXT SETUP REQUEST message;

The downlink non-access stratum transmits a DOWNLINK NAS TRANSPORT message;

Switch request HANDOVER REQUEST message.
The apparatus of claim 19, wherein the X2 interface dedicated signaling comprises one of:

Switching request HANDOVER REQUEST message;

The handover request acknowledges the HANDOVER REQUEST ACKNOWLEDGE message.
The apparatus of claim 19, wherein the X2 interface common signaling comprises one of the following:

X2 establishes a request X2 SETUP REQUEST message;

X2 establishes a response X2 SETUP RESPONSE message;

The eNB configures an update eNB CONFIGURATION UPDATE message;

The eNB configuration update acknowledges the eNB CONFIGURATION UPDATE ACKNOWLEDGE message.
The apparatus according to any one of claims 17 to 23, wherein the MA information of the self-connected MA or the MA information of the MA connected to the target base station includes at least one of: a global unique identifier of the MA , the name of the string, the extended unique identifier of the identity of the MA.
A judging device for switching with an anchor point, comprising:

The acquiring module is configured to obtain the MA information of the mobile anchor MA connected to the MA and the MA information of the MA connected to the source base station;

The determining module is configured to determine whether the X2 switching in the same MA is based on the MA information of the MA connected to the MA and the MA information of the MA connected to the source base station.
The device of claim 25, wherein the device further comprises:

The notification module is configured to notify, by X2 signaling, whether the result of the X2 handover under the same MA is notified to the MA connected to the target base station; and/or whether the determined by S1 signaling is Notifying the MA connected to the target base station as a result of the X2 handover in the same MA; and/or notifying whether the determined result of the X2 handover in the same MA is determined by X2 signaling The source base station.
The apparatus according to claim 25, wherein the obtaining module, configured to acquire MA information of the self-connected MA, comprises one of the following:

Obtaining, by the target base station, the MA information of the MA connected to the MA in the public signaling of the S1 interface that is exchanged between the MAs that are connected to the MA;

Obtaining, by the target base station, the MA information of the MA connected to the MA in the S1 interface dedicated signaling that is exchanged between the MAs that are connected to the MA;

Obtaining the source base station in the X2 interface dedicated signaling that interacts with the source base station MA information of the MA connected by the base station;

The target base station acquires MA information of the MA connected to the source base station in the X2 interface common signaling that is exchanged with the source base station.
The apparatus of claim 27, wherein the S1 interface common signaling comprises one of the following:

S1 establishes a response S1 SETUP RESPONSE message;

The mobility management entity configuration updates the MME CONFIGURATION UPDATE message.
The apparatus of claim 27, wherein the S1 interface UE dedicated signaling comprises one of the following:

Initial context request INITIAL CONTEXT SETUP REQUEST message;

The downlink non-access stratum transmits a DOWNLINK NAS TRANSPORT message;

Switch request HANDOVER REQUEST message.
The apparatus of claim 27, wherein the X2 interface dedicated signaling comprises one of the following:

Switching request HANDOVER REQUEST message;

The handover request acknowledges the HANDOVER REQUEST ACKNOWLEDGE message.
The apparatus of claim 27, wherein the X2 interface common signaling comprises one of:

X2 establishes a request X2 SETUP REQUEST message;

X2 establishes a response X2 SETUP RESPONSE message;

The eNB configures an update eNB CONFIGURATION UPDATE message;

The eNB configuration update acknowledges the eNB CONFIGURATION UPDATE ACKNOWLEDGE message.
The apparatus according to any one of claims 25 to 31, wherein the MA information of the self-connected MA or the MA information of the MA connected to the target base station includes at least one of the following: a global unique identifier of the MA , the name of the string, the extended unique identifier of the identity of the MA.