CN105025465B

CN105025465B - User terminal location report method, base station, mobile management entity and system

Info

Publication number: CN105025465B
Application number: CN201410173038.9A
Authority: CN
Inventors: 黄莹; 谢峰; 高音
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2014-04-25
Filing date: 2014-04-25
Publication date: 2019-09-24
Anticipated expiration: 2034-04-25
Also published as: CN105025465A; WO2015161575A1

Abstract

The embodiment of the invention discloses a kind of UE reporting position method, base station, MME and systems, which comprises the location information of UE is sent to MME by the first base station；Wherein, the location information of the UE carries location information of the UE under the first base station and/or the second base station；The first base station, second base station are that the UE provides radio resource, the master base station that a base station in the first base station and second base station is the UE, the prothetic group station that another base station in the first base station and second base station is the UE.

Description

User terminal position reporting method, base station, mobile management entity and system

Technical Field

The present invention relates to wireless communication technologies, and in particular, to a method for reporting a location of a User Equipment (UE), a base station, a Mobility Management Entity (MME), and a Mobility Management Entity (MME) and a system.

Background

With the development of wireless multimedia services, the demand of users for high data rate and user experience is increasing, which puts higher demands on the system capacity and coverage of the conventional cellular network. In a conventional Long Term Evolution (LTE) cellular network, a macro base station serves as a unique access side network element to provide an access service for a User Equipment (UE), and in order to meet a User's requirement for a higher data rate and improve the spectral efficiency of the cellular network, a Low Power Node (LPN) is introduced as a supplement to the macro base station in the third Generation Partnership Project (3 GPP) to provide an access service for the UE. The LPN has the characteristics of low cost, low power, convenience in deployment and the like, and the LPN generally has two deployment scenes of hot spot deployment and enhanced coverage, so that the data rate of high-rate data services in indoor or outdoor hot spot areas can be effectively improved, and the edge coverage condition of remote areas or cells is improved. The LPN may also be generally referred to as a small base station, and includes a home base station (HeNB), a pico base station (pico), a Radio remote unit/Head (RRU/RRH, Radio RemoteUnit/Radio Head), a relay Node (RN, Routing Node), and the like. In a hot spot deployment scenario, in order to achieve higher data rate and spectral efficiency, a large number of small base stations need to be densely deployed in an area.

However, since the coverage area of a small cell (small cell) under a small base station is small, the probability of handover failure when a medium-high speed mobile UE passes through the small base station is increased, which affects the service continuity of the UE. In order to improve the UE mobility after introducing a small cell, the related art proposes that a certain base station (e.g., a macro base station) guarantees basic coverage, the UE always keeps a Radio Resource Control (RRC) connection with the base station, and the small cell is only used as a transmission node (TP) to provide a higher data rate and meet the power saving requirement of the UE; under the system architecture, at least two base stations provide radio resources for the UE, and cross-node radio resource aggregation can be achieved, such architecture is generally called a dual-connection architecture, as shown in fig. 1, of the two base stations performing user Plane Data (U-Plane Data) transmission with the UE through bearer 1(Carrier1) and bearer 2(Carrier2), the base station with management control capability is a master base station (MeNB, master enb) whose coverage is a macro cell (macro cell), and the other base station is called a secondary base station (SeNB, secondary cell nb) whose coverage is a small cell. MeNB and SeNB are connected by a Non-ideal (Non-ideal) loop (backhaul). The MeNB and SeNB interact with each other via an X2 interface. After the UE accesses the MeNB, the dual connectivity may be implemented through the SeNB addition procedure, and after the SeNB addition is successful, a series of management may be performed on the SeNB, such as SeNB modification, SeNB release, SeNB change, and the like.

As shown in fig. 2, there are three possible architectures for a dual connectivity User Plane (User Plane); in the architecture 1, an S1 user plane interface, that is, an S1-U interface, is terminated at the MeNB and the SeNB, a solid line is a downlink data transmission path in the EPS bearer 1, and a dotted line is a downlink data transmission path in the EPS bearer 2;

in the architecture 2, an S1-U interface is terminated in an MeNB, bearer separation is performed on a Radio Access Network (RAN) side non-Evolved Packet System (EPS), a solid line is a downlink data transmission path in an EPS bearer 1, and a dotted line is a downlink data transmission path in an EPS bearer 2;

in the architecture 3, the S1-U interface is terminated in the MeNB, the RAN side has EPS bearer separation, for example, after downlink data in the EPS bearer reaches the MeNB, partial data in one bearer, for example, EPS bearer 2) can be separated and sent to the UE via the SeNB, the solid line is a downlink data transmission path in the EPS bearer 1, and the dotted line is a downlink data transmission path in the EPS bearer 2

According to the structure of the protocol stack of the dual-connection user plane, the three structures can be further subdivided, and at present, the 1A structure in the structure 1 or the 3C structure in the structure 3 can be adopted for dual connection; wherein,

the architecture 1A is as shown in fig. 3a, that is, on the basis of adopting the architecture 1, an S1 user plane Protocol stack on the SeNB has an independent Packet Data Convergence Protocol (PDCP) and Radio Link Control (RLC) Protocol layer and a Media Access Control (MAC) Protocol layer, and the RAN side has no bearer separation;

architecture 3C is shown in fig. 3b, i.e. based on the architecture 3 adopted, the S1 user plane protocol stack on the SeNB has an independent RLC protocol layer and MAC protocol layer.

An MME in an LTE system can request a base station to report the current position of the UE by using a UE related signaling by using a position reporting control process, and information reported by the base station comprises an evolved universal terrestrial radio access network (ECGI) Cell Global Identifier (Global Identifier) and a Tracking Area Identifier (TAI) of the current service Cell of the UE. The MME may set the base station to perform UE location reporting based on the requested type, e.g., direct reporting, reporting when serving cell changes. In a conventional LTE network, a UE has only one serving cell, and in a dual connectivity architecture or a scenario using Carrier Aggregation (CA), the UE has a plurality of serving cells, and at this time, the location reporting of the UE cannot be achieved by using a scheme of a related art.

Disclosure of Invention

The embodiment of the invention provides a UE position reporting method, a base station, an MME and a system, which can realize the position reporting of UE under a dual-connection or CA architecture.

The technical scheme of the embodiment of the invention is realized as follows:

the embodiment of the invention provides a method for reporting a UE position; the method comprises the following steps:

the first base station sends the position information of the UE to an MME; wherein,

the position information of the UE carries the position information of the UE under the first base station and/or the second base station;

the first base station and the second base station provide wireless resources for the UE, one of the first base station and the second base station is a master base station (MeNB) of the UE, and the other of the first base station and the second base station is a secondary base station (SeNB) of the UE.

The embodiment of the invention also provides a method for reporting the position of the UE, which comprises the following steps:

the MME receives the position information of the UE sent by the first base station; wherein,

the first base station and the second base station provide wireless resources for the UE, one of the first base station and the second base station is a main base station of the UE, and the other of the first base station and the second base station is an auxiliary base station of the UE.

An embodiment of the present invention further provides a first base station, where the first base station includes:

a first communication unit, configured to send location information of the UE to the MME; wherein,

the position information of the UE carries the position information of the UE under the first base station and/or the second base station; the first base station and the second base station provide wireless resources for the UE, one of the first base station and the second base station is a main base station of the UE, and the other of the first base station and the second base station is an auxiliary base station of the UE.

An embodiment of the present invention further provides an MME, where the MME includes:

the second communication unit is used for receiving the position information of the UE sent by the first base station; wherein,

The embodiment of the invention also provides a UE position reporting system, which comprises a first base station, a second base station and an MME; wherein,

the first base station is used for sending the position information of the UE to the MME;

the MME is used for receiving the position information of the UE sent by the first base station;

the location information of the UE carries the location information of the UE under the first base station and/or the second base station;

In the embodiment of the present invention, the first base station sends the location information of the UE sent by the first base station connected to the UE, and because the first base station is a base station (which may be a main base station or an auxiliary base station) to which the UE is connected under dual connectivity, and the first base station supports obtaining of the location information of the UE under the first base station and the second base station, the location reporting of the UE under a dual connectivity framework can be realized by the first base station, and the location reporting management of the UE can be more refined.

Drawings

FIG. 1 is a schematic diagram of a dual connectivity scenario;

FIG. 2 is a schematic diagram of a dual connectivity S1 user plane architecture;

FIG. 3a is a schematic diagram of a dual connectivity user plane architecture 1A;

FIG. 3b is a diagram of a dual connectivity user plane architecture 3C;

fig. 4 is a first schematic diagram illustrating a UE location reporting method according to an embodiment of the present invention;

fig. 5 is a second schematic diagram illustrating a UE location reporting method according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first base station according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an MME according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a UE location reporting system according to an embodiment of the present invention;

fig. 9 is a first flowchart of an implementation of UE location reporting according to an embodiment of the present invention;

fig. 10 is a flowchart of a second implementation of UE location reporting according to an embodiment of the present invention;

fig. 11 is a third flow chart for implementing UE location reporting according to the embodiment of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, and it should be noted that features of the embodiments and examples of the present invention may be combined with each other without conflict.

An embodiment of the present invention describes a method for reporting a UE location, and as shown in fig. 4, the method includes:

the first base station and the second base station provide wireless resources for the UE, one of the first base station and the second base station is a master base station (MeNB) of the UE, and the other of the first base station and the second base station is an auxiliary base station (SeNB) of the UE;

that is, the first base station may be a master base station or an auxiliary base station, and when the first base station is the master base station, the second base station is the auxiliary base station; and when the first base station is an auxiliary base station, the second base station is a main base station.

As an embodiment, the sending, by the first base station, the location information of the UE to an MME includes:

the first base station sends the location information of the UE to the MME through an S1 interface message, wherein the S1 interface message comprises at least one of the following messages:

reporting a message by the position; s1 interface UE context release complete message; s1 interface UE context release request message; an Evolved Radio Access Bearer (E-RAB) release response message; an evolved radio access bearer release indication message; a path transfer request message; an initial UE message; an uplink Non-access stratum (NAS) transmission message; a handover notification message.

As an embodiment, the location information includes at least one of the following information:

a cell identity; TAI; cell partition (cell port).

As an embodiment, before the base station sends the location information of the UE to the MME, the method further includes:

the first base station acquires the position information of the UE under the second base station; wherein the first base station may receive an X2 interface message from the second base station, and acquire location information of the UE under the second base station from the X2 interface message.

As an embodiment, the method further comprises:

the first base station receives the UE updated position information sent by the second base station and sends the UE updated position information to the MME; wherein,

the location information updated by the UE comprises new location information of the UE under the second base station after the location information of the UE under the second base station is changed; therefore, when the position of the UE is updated, the updated position information of the UE can be reported.

As an embodiment, the location information of the UE under the first base station includes at least one of the following information:

location information of the UE in a serving cell under the first base station;

location information of the UE in a primary cell (Pcell) under the first base station;

location information of the UE in a secondary cell (Scell) under the first base station;

the UE carries the position information in the Pcell and the Scell under the first base station;

correspondingly, the location information of the UE under the second base station includes at least one of the following information:

location information of the UE in a serving cell under the second base station;

location information of the UE in the Pcell under the second base station;

location information of the UE in the Scell under the second base station;

and the UE carries the position information in the Pcell and the Scell under the second base station.

As an embodiment, before the first base station sends the location information of the UE to the MME, the method further includes:

receiving position reporting control information sent by the MME; the location reporting control information includes at least one of the following information:

request type information;

instructing the first base station to report the position information of the UE under the first base station;

instructing the first base station to report the position information of the UE under the second base station;

instructing the first base station to report the position information of the UE under the first base station and the second base station; the number of cells under the first base station including the Scell and the number of cells under the second base station including the Scell may both be multiple.

As an embodiment, the request type information includes at least one of the following information:

directly reporting (namely directly reporting the position information of the UE); reporting after the serving cell of the UE is changed; stopping reporting after the serving cell is changed (i.e., not reporting the location information of the UE after the serving cell of the UE is changed); reporting the position information of the UE under the first base station; reporting the position information of the UE under the second base station; reporting after the first base station is changed (namely reporting the position information of the UE when the first base station of the UE is changed); stopping reporting after the first base station is changed (namely, when the first base station is changed, the UE position information is not reported); reporting the second base station after the second base station is changed (namely reporting the position information of the UE when the second base station is changed); stopping reporting after the second base station is changed (namely, when the second base station is changed, the UE position information is not reported); reporting after the cell change of the first base station (namely reporting the position information of the UE after the cell of the UE under the second base station is changed); stopping reporting after the cell change under the first base station (namely, after the cell where the UE is located under the second base station is changed, not reporting the position information of the UE); reporting after the cell change under the second base station; stopping reporting after the cell change under the second base station; reporting after the Pcell changes (namely reporting the position information of the UE after the Pcell where the UE is located changes); stopping reporting after the Pcell is changed (namely, after the Pcell where the UE is located is changed, not reporting the position information of the UE); reporting after the Scell is changed; stopping reporting after the Scell is changed; reporting after the Pcell of the first base station is changed (namely reporting the position information of the UE after the Pcell of the UE under the first base station is changed); stopping reporting after the Pcell changes under the first base station (namely, after the Pcell where the UE is located under the first base station changes, not reporting the position information of the UE); reporting after the Scell of the first base station is changed (namely reporting the position information of the UE after the Scell of the UE under the first base station is changed); stopping reporting after the Scell under the first base station is changed (namely, after the Scell of the UE under the first base station is changed, not reporting the position information of the UE); reporting after the Pcell of the second base station is changed (namely reporting the position information of the UE after the Pcell of the UE under the second base station is changed); stopping reporting after the Pcell changes under the second base station (namely, after the Pcell where the UE is located under the second base station changes, not reporting the position information of the UE); reporting after the Scell of the second base station is changed (namely reporting the position information of the UE after the Scell of the UE under the second base station is changed); and stopping reporting after the Scell under the second base station is changed (namely, after the Scell of the UE under the first base station is changed, not reporting the position information of the UE).

As an embodiment, the method further comprises:

and when the serving cell of the UE is switched, the first base station sends the position reporting control information to a target base station for switching the serving cell of the UE.

An embodiment of the present invention describes a method for reporting a UE location, and as shown in fig. 5, the method includes:

As an embodiment, before the MME receives the location information of the UE to be sent by the first base station, the method further includes:

and the MME sends position reporting control information to the first base station.

The location reporting control information includes at least one of the following information:

request type information;

and instructing the first base station to report the position information of the UE under the first base station and the second base station.

As an embodiment, before the MME sends the location reporting control information to the first base station, the method further includes:

the MME determines whether the UE uses dual connectivity;

determining the position reporting control information according to the judgment result; wherein, the MME judging whether the UE uses dual connectivity may be implemented by:

the MME judges whether the UE uses dual connectivity or not according to locally stored information;

or, the MME determines whether the UE uses dual connectivity according to location reporting assistance information sent by the first base station or the second base station; the location reporting auxiliary information is information for identifying whether the UE uses dual connectivity; the location reporting assistance information includes at least one of the following information:

a double connection indication; identification information of a cell to which the UE is accessed; identification information of a base station to which the UE is accessed.

As shown in fig. 6, a first base station according to an embodiment of the present invention includes:

a first communication unit 61 configured to transmit location information of the UE to the MME; wherein,

As an embodiment, the first communication unit 61 is further configured to send the location information of the UE to the MME through an S1 interface message, where the S1 interface message includes at least one of the following messages:

reporting a message by the position; s1 interface UE context release complete message; s1 interface UE context release request message; E-RAB release response message; E-RAB release indication message; a path transfer request message; an initial UE message; transmitting the message by an uplink non-access stratum (NAS); a handover notification message.

a cell identity; TAI; and (4) cell porting.

As an embodiment, the first base station further includes:

an obtaining unit 62, configured to obtain location information of the UE under the second base station before the first communication unit 61 sends the location information of the UE to the MME.

As an embodiment, the obtaining unit 62 is further configured to receive an X2 interface message from the second base station through the first communication unit 61, and obtain the location information of the UE under the second base station from the X2 interface message.

As an embodiment, the first communication unit 61 is further configured to receive location information updated by the UE and sent by the second base station, and send the location information updated by the UE to the MME; wherein,

the location information updated by the UE includes new location information of the UE under the second base station after the location information of the UE under the second base station is changed.

location information of the UE in a serving cell under the first base station;

the UE carries out position information in the Pcell under the first base station;

location information of the UE in the Scell under the first base station;

location information of the UE in a serving cell under the second base station;

location information of the UE in the Pcell under the second base station;

location information of the UE in the Scell under the second base station;

As an embodiment, the location reporting control information includes at least one of the following information:

request type information;

directly reporting; reporting after the service cell is changed; stopping reporting after the serving cell is changed; reporting the position information under the first base station; reporting the position information of the second base station; reporting after the first base station is changed; stopping reporting after the first base station is changed; the second base station reports the change; stopping reporting after the second base station is changed; reporting after the cell change under the first base station; stopping reporting after the cell changes under the first base station; reporting after the cell change under the second base station; stopping reporting after the cell change under the second base station; reporting after the Pcell is changed; stopping reporting after the Pcell is changed; reporting after the Scell is changed; stopping reporting after the Scell is changed; reporting after the Pcell is changed by the first base station; stopping reporting after the Pcell is changed under the first base station; reporting after the Scell under the first base station is changed; stopping reporting after the Scell under the first base station is changed; the second base station reports the changed Pcell; stopping reporting after the Pcell is changed under the second base station; reporting after the Scell under the second base station is changed; and stopping reporting after the Scell under the second base station is changed.

As an embodiment, the first communication unit 61 is further configured to send the location reporting control information to a target base station for performing serving cell handover to the UE when a serving cell of the UE is handed over.

In practical applications, the first communication unit 61 may be implemented by a receiver and a transmitter in a first base station; the obtaining Unit 62 may be implemented by a Central Processing Unit (CPU) in the first base station, a Digital Signal Processor (DSP), or a Field Programmable Gate Array (FPGA).

An embodiment of the present invention further describes an MME, and as shown in fig. 7, the MME includes:

a second communication unit 71, configured to receive location information of the UE sent by the first base station; wherein,

As an embodiment, the second communication unit 71 is further configured to send location reporting control information to the first base station before receiving location information of the UE to be sent by the first base station.

As an embodiment, the MME further comprises: a judgment unit 72 and a determination unit 73; wherein

The determining unit 72 is configured to determine whether the UE uses dual connectivity before the second communication unit 71 sends the location reporting control information to the first base station;

the determining unit 73 is configured to determine the position reporting control information according to the judgment result of the judging unit 72.

As an embodiment, the second communication unit is further configured to receive location reporting assistance information sent by the first base station or the second base station;

the determining unit 72 is further configured to determine whether the UE uses dual connectivity according to the stored information;

or, according to the location reporting assistance information received by the second communication unit 71, it is determined whether the UE uses dual connectivity.

As an embodiment, the location reporting assistance information is information for identifying whether the UE uses dual connectivity; the location reporting assistance information includes at least one of the following information:

In practical applications, the second communication unit 72 may be implemented by a receiver and a transmitter in the MME; the judging unit 72 and the determining unit 73 may be implemented by a CPU, a DSP, or an FPGA in the MME.

The embodiment of the present invention further describes a UE location reporting system, as shown in fig. 8, which includes a first base station 81, a second base station 82, and an MME 83; wherein,

the first base station 81 is configured to send location information of the UE to the MME 83;

the MME83 is configured to receive location information of the UE sent by the first base station 81; wherein,

the location information of the UE carries location information of the UE under the first base station 81 and/or the second base station 82;

the first base station 81 and the second base station 82 both provide wireless resources for the UE, one of the first base station 81 and the second base station 82 is a main base station of the UE, and the other of the first base station 81 and the second base station 82 is an auxiliary base station of the UE.

As an embodiment, the first base station 81 is further configured to send the location information of the UE to the MME83 through an S1 interface message, where the S1 interface message includes at least one of the following messages:

As an embodiment, the first base station 81 is further configured to acquire the location information of the UE under the second base station 82 before sending the location information of the UE to the MME 83.

As an embodiment, the first base station 81 is further configured to receive an X2 interface message from the second base station 82, and obtain the location information of the UE under the second base station 82 from the X2 interface message.

As an embodiment, the first base station 81 is further configured to receive the UE updated location information sent by the second base station 82, and send the UE updated location information to the MME 83; wherein,

the location information updated by the UE includes new location information of the UE under the second base station 82 after the location information of the UE under the second base station 82 is changed.

As an embodiment, the location information of the UE under the first base station 81 includes at least one of the following information:

location information of the UE in a serving cell under the first base station 81;

location information of the UE in the Pcell under the first base station 81;

location information of the UE in the Scell under the first base station 81;

location information of the UE in Pcell and Scell under the first base station 81;

accordingly, the location information of the UE under the second base station 82 includes at least one of the following information:

location information of the UE in a serving cell under the second base station 82;

location information of the UE in the Pcell under the second base station 82;

location information of the UE in the Scell under the second base station 82;

location information of the UE in Pcell and Scell under the second base station 82.

As an embodiment, the first base station 81 is further configured to receive the location reporting control information sent by the MME83 before sending the location information of the UE to the MME 83.

As an embodiment, the first base station 81 is further configured to send the location reporting control information to a target base station for performing cell handover on the UE when a serving cell of the UE is handed over.

In an embodiment, the MME83 is further configured to send location reporting control information to the first base station 81 before receiving location information of the UE to be sent by the first base station 81.

As an embodiment, before sending the location reporting control information to the first base station 81, the MME83 is further configured to determine whether the UE uses dual connectivity; and determining the position reporting control information according to the judgment result.

As an embodiment, the MME83 is further configured to determine whether the UE uses dual connectivity according to locally stored information;

or, the MME83 determines whether the UE uses dual connectivity according to the location reporting assistance information sent by the first base station 81 or the second base station 82.

The embodiment of the present invention further describes a computer storage medium, where a computer-executable instruction is stored in the computer storage medium, and the computer-executable instruction is used to execute the UE location reporting method shown in fig. 4 or fig. 5.

The following describes a technical solution according to an embodiment of the present invention with a first base station as a primary base station and a second base station as a secondary base station.

It is noted that the following method embodiments are applicable to the dual connectivity user plane architecture 1A or the dual connectivity user plane architecture 3C. The HeNB as the MeNB or the SeNB can be connected with the MME through a HeNB GW, and S1 messages interacted between the MME and the MeNB/SeNB can be forwarded through a HeNB GateWay (GW, GateWay). The HeNB as the MeNB or the SeNB can be connected with other base stations through X2GW, then the interactive X2 messages between the MeNB/SeNB and other base stations can be forwarded through X2GW when the interactive X2 messages between the MeNB and the SeNB are received.

The following describes the technical solution described in the embodiment of the present invention by taking an example in which a location reporting control message of an MME triggers an MeNB to report a location of a UE, and fig. 9 is a first flowchart of an implementation of UE location reporting described in the embodiment of the present invention, as shown in fig. 9, the method includes the following steps:

in step 901, the MeNB sends the location reporting assistance information to the MME using the UE-related S1 signaling.

The location reporting assistance information is information for indicating whether the UE uses dual connectivity, and may include at least one of the following information: dual connectivity indication (i.e., UE uses dual connectivity); identification information of a cell to which the UE is accessed; identification information of a base station to which the UE has access. According to the identification information of the cell accessed by the UE or the identification information of the base station accessed by the UE, whether the UE uses dual connection can be judged; the UE-related S1 signaling includes: an initial UE message, an initial context setup response message, and a path transfer request message.

In step 902, the MME determines whether the UE uses dual connectivity.

The MME may determine from locally stored information, for example, if the UE has multiple S1-U downlink endpoints, the UE is considered to use dual connectivity. If the MME receives the auxiliary information for reporting the position from the base station, whether the UE uses the dual connectivity can be judged according to the auxiliary information for reporting the position.

Step 903, the MME sends a location reporting control message to the MeNB according to the determination result to request the base station to report the location information of the UE.

The location reporting control message includes location reporting control information, where the MME may determine the location reporting control information according to a determination result of whether the UE uses the dual connectivity, and when it is determined that the UE uses the dual connectivity, the location reporting control information may include at least one of the following information:

1) request type information;

2) the information used for indicating the base station to report the position of the UE under the MeNB;

3) the information used for indicating the base station to report the position of the UE under the SeNB;

4) the information used for indicating the base station to report the position of the UE under the MeNB and the SeNB;

the location reporting control information may include request type information when it is determined that the UE does not use dual connectivity.

Wherein the request type information includes at least one of the following information:

directly reporting; reporting after the service cell is changed; stopping reporting after the serving cell is changed; reporting position information under the MeNB; reporting position information under the SeNB; reporting after the MeNB is changed; stopping reporting after the MeNB is changed; reporting after the change of the SeNB; stopping reporting after the change of the SeNB; reporting after the change of the cell under the MeNB; stopping reporting after the cell change under the MeNB; reporting after the change of the cell under the SeNB; stopping reporting after the cell change under the SeNB; a Primary Cell (Pcell, Primary Cell), namely a Cell establishing RRC connection with the UE, is changed and reported; stopping reporting after the Pcell is changed; reporting after the change of a Secondary Cell (Scell); stopping reporting after the Scell is changed; reporting after the Pcell is changed by the MeNB; stopping reporting after the Pcell changes under the MeNB; reporting after the Scell under the MeNB is changed; stopping reporting after the Scell under the MeNB is changed; reporting after the change of the Pcell under the SeNB; reporting after the Pcell is changed under the SeNB is stopped; reporting after the Scell under the SeNB is changed; stopping reporting after the Scell under the SeNB is changed; the cell under the MeNB or the cell under the SeNB may be a Pcell or a Scell.

It should be noted that the location reporting control information sent by the MME may not include location information for instructing the base station to report the UE under the MeNB and/or the SeNB.

Step 904, the MeNB sends a location reporting message to the MME according to the location reporting control message sent by the MME, the reported UE location information, the UE location information including the location information of the UE under the MeNB and/or the SeNB.

Wherein the location information of the UE comprises at least one of the following information: ECGI; TAI; cell partition (cell) information.

For example, when the MeNB receives that the request type in the location reporting control information sent by the MME is direct reporting, and the location reporting control information includes information for instructing the base station to report the location of the UE under the MeNB, the MeNB reports location information, including an ect i and a TAI, of the UE in a serving cell (which may be a Pcell and/or a Scell) under the current MeNB where the UE is located.

For another example, when the MeNB receives that the request type in the location reporting control information sent by the MME is that the SeNB changes to report, and the location reporting control information includes information for instructing the base station to report the location of the UE under the SeNB, the MeNB is triggered to report the current location information of the UE after the SeNB of the UE changes, where the current location information of the UE at least includes location information of the UE in a serving cell (which may be a Pcell and/or a Scell) under the SeNB.

For another example, the location reporting control information sent by the MME does not include information for instructing the base station to report the location of the UE in the MeNB and/or the SeNB, and the MeNB determines by itself whether to report the location information of the UE in the MeNB and/or the SeNB.

It should be noted that the SeNB may send the serving cell information of the UE under the SeNB to the MeNB through an X2 interface, so that the MeNB performs location reporting according to the obtained location information of the serving cell (including the Pcell and/or Scell) of the UE under the SeNB; after the location of the UE in the serving cell under the SeNB changes, for example, after the location of the UE in the Pcell or Scell under the SeNB changes, the SeNB may notify the MeNB through an X2 interface message.

The following describes the technical solution described in the embodiment of the present invention by taking an example that an MeNB reports location information of a UE in an E-RAB release process of the UE, and fig. 10 is a schematic diagram of an implementation flow of UE reporting described in the embodiment of the present invention, and as shown in fig. 10, the method includes the following steps:

step 1001, the MeNB sends the location reporting assistance information to the MME using the UE-related S1 signaling.

The location reporting assistance information is information for identifying whether the UE uses dual connectivity, and may include at least one of the following information: a double connection indication; identification information of a cell to which the UE is accessed; identification information of a base station to which the UE has access. The UE-related S1 signaling may include: an initial UE message, an initial context setup response message, and a path transfer request message.

In step 1002, the MME determines whether the UE uses dual connectivity.

The MME may determine whether the UE uses dual connectivity according to locally stored information, for example, if the UE has multiple S1-U downlink transmission endpoints, the UE determines to use dual connectivity; if the MME receives the auxiliary information for reporting the position from the base station, whether the UE uses the dual connectivity can be judged according to the auxiliary information for reporting the position.

Step 1003, the MeNB sends an E-RAB release indication message to the MME to trigger the MME to initiate an E-RAB release procedure.

Before step 1003, the MME may carry the location reporting control information in an initial context setup request message, an E-RAB setup request message, or a UE context modification request message, and send it to the MeNB; to trigger the MeNB to perform the location reporting processing of the UE according to the received location reporting control information,

when the MeNB determines that the received position reporting control information contains information for indicating the position of the reporting UE under the MeNB and/or the SeNB, the MeNB carries the current position information of the UE in an E-RAB release indication message and sends the information to the MME; e, the current position information comprises the position information of the UE under the MeNB and/or the SeNB; the location information of the UE includes at least one of: ECGI; TAI; and (4) cell porting.

And when the MeNB determines that the position reporting control information sent by the MME does not contain information for indicating the base station to report the position of the MeNB and/or the SeNB where the UE is located, the MeNB automatically determines whether to report the position information of the MeNB and/or the SeNB of the UE.

In step 1004, the MME sends an E-RAB release order message to the MeNB to perform E-RAB release.

The E-RAB release command message may include location reporting control information, where the location reporting control information includes information for instructing the base station to report the location of the MeNB and/or the SeNB where the UE is located.

In step 1005, the MeNB sends an E-RAB release response message to the MME.

The MeNB can carry the current position information of the UE in the E-RAB release response message; the UE current location information includes information of a location of the UE under the MeNB and/or the SeNB. For example, the location information of the UE includes at least one of the following information: ECGI; TAI; cell reporting information.

The MeNB can perform the location reporting processing of the UE according to the received location reporting control information; if the position reporting control information sent by the MME does not include information for instructing the base station to report the position of the MeNB and/or the SeNB where the UE is located, the MeNB may determine whether to report the position information of the MeNB and/or the SeNB of the UE by itself.

The method comprises the steps that the SeNB can send the position information of a service cell of the UE under the SeNB to the MeNB through an X2 interface, so that the MeNB obtains the information of the service cell (including the Pcell and/or the Scell) of the UE under the SeNB and performs position reporting; for example, after the UE changes in Pcell or Scell under the SeNB, the SeNB may notify the MeNB through an X2 interface message.

Taking the example that the MeNB reports the location of the UE in the UE context release process as an example, fig. 11 is a schematic diagram of a third implementation flow of UE location reporting according to an embodiment of the present invention, and as shown in fig. 11, the method includes the following steps:

in step 1101, the MeNB sends the location reporting assistance information to the MME using UE-related S1 signaling.

The location reporting assistance information is used to identify whether the UE uses dual connectivity, and may include at least one of the following information: dual connection indication, identification information of a cell to which the UE is accessed; identification information of the base station to which the UE is accessed. The UE-related S1 signaling includes: an initial UE message, an initial context setup response message, and a path transfer request message.

In step 1102, the MME determines whether the UE uses dual connectivity.

The MME may determine that the UE uses dual connectivity if the UE has multiple S1-U downlink transmission endpoints, for example, according to locally stored information; if the MME receives the auxiliary information for reporting the position from the base station, whether the UE uses the dual connectivity can be judged according to the auxiliary information for reporting the position.

In step 1103, the MeNB sends a UE context release request message to the MME to trigger the MME to initiate a UE context release procedure.

The MeNB can carry the current position information of the UE in the context release request message, wherein the current position information of the UE comprises the position information of the UE under the MeNB and/or the SeNB; for example, the location information of the UE includes at least one of the following information: ECGI; TAI; and (4) cell reporting.

Before step 1103, the MME may carry reporting control information in an initial context setup request message, an E-RAB setup request message, or a UE context modification request message, and send the information to the MeNB, so as to trigger the MeNB to perform location reporting processing of the UE; the position reporting control information comprises information used for indicating the base station to report the position of the UE under the MeNB and/or the SeNB;

if the MeNB determines that the position reporting control information sent by the MME does not contain information for instructing the base station to report the position information of the MeNB and/or the SeNB where the UE is located, the MeNB can determine whether to report the position information of the MeNB and/or the SeNB of the UE by itself.

In step 1104, the MME sends a UE context release command message to the MeNB to perform UE context release.

Wherein, the context release command message may include the position reporting control information; the position reporting control information comprises information used for indicating the base station to report the position of the MeNB and/or the SeNB where the UE is located.

In step 1105, the MeNB sends a UE context release complete message to the MME.

The MeNB may carry the UE current location information in the context release complete message, where the UE current location information includes location information of the UE under the MeNB and/or the SeNB. For example, the location information includes at least one of the following information: ECGI; TAI; and (4) cell reporting.

The MeNB may report the location of the UE according to the received location reporting control information, and if the location reporting control information sent by the MME does not include information for instructing the base station to report the location information of the MeNB and/or the SeNB where the UE is located, the MeNB may determine whether to report the location information of the MeNB and/or the SeNB of the UE by itself.

The SeNB can send the service cell information of the UE under the SeNB to the MeNB through an X2 interface, so that the MeNB obtains the service cell (including the Pcell and/or Scell) information of the UE under the SeNB and performs position reporting; for example, the UE changes in Pcell or Scell under the SeNB, which may notify the MeNB through an X2 interface message.

It should be noted that, in the embodiment of the present invention, the reporting of the UE is performed in the E-RAB release process and the UE context release process as an example; the MeNB may also report the location information of the UE through a path transfer request message, an initial UE message, an uplink NAS transport message, and a handover notification message.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A method for reporting UE position of user terminal; characterized in that the method comprises:

the first base station receives position reporting control information sent by a Mobile Management Entity (MME), and sends the position information of the UE to the MME according to the position reporting control information; wherein,

the position information of the UE carries the position information of the UE under a second base station, or carries the position information of the UE under the first base station and the second base station;

2. The method of claim 1, wherein the first base station sends the location information of the UE to an MME, and wherein the sending comprises:

reporting a message by the position; s1 interface UE context release complete message; s1 interface UE context release request message; E-RAB release response message is carried in the evolution wireless access; E-RAB release indication message; a path transfer request message; an initial UE message; transmitting the message by an uplink non-access stratum (NAS); a handover notification message.

3. The method of claim 1, wherein the location information comprises at least one of:

a cell identity; tracking area identity, TAI; a cell partition.

4. The method of claim 1, wherein before the first base station sends the location information of the UE to the MME, the method further comprises:

and the first base station acquires the position information of the UE under the second base station.

5. The method of claim 4, wherein the obtaining, by the first base station, the location information of the UE under the second base station comprises:

the first base station receives an X2 interface message from the second base station, and acquires the position information of the UE under the second base station from the X2 interface message.

6. The method of claim 1, further comprising:

7. The method of claim 1, wherein the location information of the UE under the first base station comprises at least one of the following information:

location information of the UE in a serving cell under the first base station;

the UE is located in a primary cell Pcell under the first base station;

location information of the UE in a secondary cell Scell under the first base station;

location information of the UE in a serving cell under the second base station;

the UE is located in a primary cell Pcell under the second base station;

the location information of the UE in the secondary cell Scell under the second base station;

8. The method according to any of claims 1 to 7, wherein before the first base station sends the location information of the UE to the MME, the method further comprises:

and receiving the position reporting control information sent by the MME.

9. The method of claim 8, wherein the location reporting control information comprises at least one of the following information:

request type information;

10. The method of claim 9, wherein the request type information comprises at least one of:

11. The method of claim 8, further comprising:

12. A method for reporting a User Equipment (UE) position is characterized in that the method comprises the following steps:

a Mobile Management Entity (MME) sends position reporting control information to a first base station, and the first base station sends the position information of UE to the MME according to the position reporting control information; wherein,

13. The method of claim 12, wherein before the MME sends the location reporting control information to the first base station, the method further comprises:

the MME determines whether the UE uses dual connectivity;

and determining the position reporting control information according to the judgment result.

14. The method of claim 12, wherein the MME determining whether the UE uses dual connectivity comprises:

or, the MME determines whether the UE uses dual connectivity according to the location reporting assistance information sent by the first base station or the second base station.

15. The method of claim 14, wherein the location reporting assistance information comprises at least one of:

16. A first base station, the first base station comprising:

a first storage unit for storing location information of the UE;

the first communication unit is used for receiving position reporting control information sent by a Mobile Management Entity (MME) and sending the position information of the UE to the MME according to the position reporting control information; wherein,

the position information of the UE carries the position information of the UE under a second base station, or carries the position information of the UE under the first base station and the second base station; the first base station and the second base station provide wireless resources for the UE, one of the first base station and the second base station is a master base station (MeNB) of the UE, and the other of the first base station and the second base station is a secondary base station (SeNB) of the UE.

17. The first base station of claim 16,

the first communication unit is further configured to send location information of the UE to the MME via an S1 interface message, where the S1 interface message includes at least one of:

18. The first base station of claim 16, wherein the location information comprises at least one of:

a cell identity; tracking an area identifier; a cell partition.

19. The first base station of claim 16, wherein the first base station further comprises:

an obtaining unit, configured to obtain location information of the UE in the second base station before the first communication unit sends the location information of the UE to the MME.

20. The first base station of claim 19,

the obtaining unit is further configured to receive an X2 interface message from the second base station through the first communication unit, and obtain location information of the UE under the second base station from the X2 interface message.

21. The first base station of claim 16,

the first communication unit is further configured to receive location information updated by the UE and sent by the second base station, and send the location information updated by the UE to the MME; wherein,

22. The first base station of claim 16, wherein the location information of the UE under the first base station includes at least one of the following information:

location information of the UE in a serving cell under the first base station;

the UE is located in a primary cell Pcell under the first base station;

location information of the UE in a serving cell under the second base station;

the UE is located in a primary cell Pcell under the second base station;

23. The first base station according to any of the claims 16 to 22,

the first communication unit is further configured to receive location reporting control information sent by the MME before sending the location information of the UE to the MME.

24. The first base station of claim 23, wherein the location reporting control information comprises at least one of the following information:

request type information;

25. The first base station of claim 24, wherein the request type information comprises at least one of the following information:

26. The first base station of claim 23,

and the first communication unit sends the position reporting control information to a target base station for switching the service cells of the UE when the service cells of the UE are switched.

27. A Mobility Management Entity (MME), wherein the MME comprises:

the second communication unit is used for sending position reporting control information to the first base station, and the first base station sends the position information of the UE to the MME according to the position reporting control information;

a second storage unit for storing location information of the UE; wherein,

28. The MME of claim 27, wherein the MME further comprises: a judging unit and a determining unit; wherein,

the determining unit is configured to determine whether the UE uses dual connectivity before the second communication unit sends the location reporting control information to the first base station;

and the determining unit is used for determining the position reporting control information according to the judgment result of the judging unit.

29. The MME of claim 27,

the second communication unit is further configured to receive location reporting assistance information sent by the first base station or the second base station;

the judging unit is further configured to judge whether the UE uses dual connectivity according to the stored information;

or, according to the location reporting auxiliary information received by the second communication unit, determining whether the UE uses dual connectivity.

30. The MME of claim 29, wherein the location reporting assistance information comprises at least one of:

31. A UE position reporting system is characterized in that the system comprises a first base station, a second base station and a mobile management entity MME; wherein,

the MME is used for sending position reporting control information to the first base station;

the first base station is configured to send the location information of the UE to the MME according to the location reporting control information;

the location information of the UE carries the location information of the UE under a second base station, or carries the location information of the UE under the first base station and the second base station;