WO2010017731A1

WO2010017731A1 - Method and system for acquiring information

Info

Publication number: WO2010017731A1
Application number: PCT/CN2009/072761
Authority: WO
Inventors: 王学龙; 王君
Original assignee: 深圳华为通信技术有限公司
Priority date: 2008-08-13
Filing date: 2009-07-14
Publication date: 2010-02-18
Also published as: CN101651875A

Abstract

A method, system, base station and CN network element for acquiring information are provided. The method includes that: the first base station acquires attribution corresponding relation information, the attribution corresponding relation information includes the information for building cell attribution relation (101); the first base station transmits the attribution corresponding relation information to the first CN network element in the first CN network element group which the first base station belongs to (102).

Description

Method and system for obtaining information

This application claims the application date of September 28, 2008, the application number is 200810170128.7, the invention name is "method of obtaining information, base station, core network element and system" and submitted on August 13, 2008, the application number is 200810130808.6 The invention is entitled "Application, Apparatus, and System for Acquiring, Establishing Base Station Ownership," which is incorporated herein by reference. Technical field

The present invention relates to the field of communications, and in particular, to a method and system for acquiring information. Background technique

With the development of society and economy, people have put forward higher requirements for the next generation mobile network. The next generation of mobile networks should be highly intelligent, with good refactoring, scalability, and self-organization, and should automatically provide services to users in an optimal manner.

However, many of the current network configurations are manually pre-planned. For example, when the user equipment performs handover between core network elements, it needs to know the address of the target core network element or the target core network element group. The network administrator pre-configures the association table between the base station and the core network element (or the core network element group) in the core network element, and the source core network element searches the association table according to the identifier of the base station to which the target cell belongs, and finds the target core. The address of the network element or the target core network element tuple completes the handover process of the user equipment. In the prior art, there is a problem of waste of resources when manually configuring a cell belonging relationship association table. Summary of the invention

The embodiment of the invention provides a method, a system, a base station and a core network element for acquiring information, which reduces waste of system resources.

In one aspect, the embodiment of the present invention provides a method for acquiring information, including: acquiring, by a first base station, home correspondence information, where the home correspondence information includes a message for establishing a cell belonging relationship The first base station sends the home correspondence information to the first core network element in the first core network element group to which the first base station belongs.

On the other hand, the embodiment of the present invention provides another method for establishing a cell affiliation relationship, including: receiving the home correspondence relationship information sent by the first base station; and establishing a cell affiliation relationship according to the home correspondence relationship information.

In a further aspect, the embodiment of the present invention further provides a base station, including: a relationship acquiring unit, configured to acquire home correspondence information, where the home correspondence information includes information used to establish a cell affiliation, and a sending unit, where Sending the home correspondence information to the first core network element in the core network element group to which the base station belongs.

In another aspect, the embodiment of the present invention further provides a core network element, including: a receiving unit, configured to receive the home correspondence information sent by the base station; and a relationship establishing unit, configured to establish, according to the home correspondence information Community ownership.

In a further aspect, the system of the present invention further includes: a base station, configured to acquire the home correspondence information, and send the home correspondence information to the first core in the core network element group to which the base station belongs a network element, the home correspondence information includes information for establishing a cell affiliation; the core network element is configured to receive the home correspondence information sent by the base station, and establish a cell affiliation relationship according to the home correspondence information .

The beneficial effects of the technical solutions provided by the embodiments of the present invention are:

By obtaining the home correspondence information, the core network element can dynamically establish a cell belonging relationship according to the home correspondence information, thereby avoiding resource waste. DRAWINGS

1 is a schematic diagram of a connection relationship of a base station according to an embodiment of the present invention;

2 is a flowchart of a method for acquiring cell information according to another embodiment of the present invention; FIG. 3 is a flowchart of a method for acquiring cell information based on an LTE system according to another embodiment of the present invention; 4A is a structure of a base station according to another embodiment of the present invention.

4B is another base station provided by another embodiment of the present invention.

FIG. 5A is a structural diagram of a core network element provided by another embodiment of the present invention:

FIG. 5B is another embodiment of a core network element provided by another embodiment of the present invention; FIG.

6 is a schematic diagram of a system structure for acquiring a cell affiliation relationship provided by the embodiment of the present invention;

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

1 is a schematic diagram of a connection relationship between base stations according to an embodiment of the present invention. The source core network element is adjacent to at least one adjacent core network element, for example, two neighbor core network elements, which are respectively a core network element 1 and Core network element 2; at least one base station connected to the core network element 1, for example, three, respectively, the base station 11, the base station 12 and the base station 13; the base network element 2 connected to the base station has at least one, for example three, respectively The base station 21, the base station 22, and the base station 23; wherein, the assumption that the source core network element has a handover relationship is only the base station 11 and the base station 21, that is, the association table of the source core network element only needs to maintain "the base station 11 and the core Network network element 1 ", "base station 21 and core network network element 2" can be the corresponding relationship.

In order to avoid the manual configuration, the correspondence between the six base stations and the core network element needs to be configured in the association table, thereby facilitating the query, reducing the waste of resources, and reducing the cost of the manual configuration. A method for obtaining information is provided. As shown in FIG. 2, a flowchart of a method for acquiring cell information according to another embodiment of the present invention may include the following content.

101: The first base station acquires the home correspondence information, where the home correspondence information includes information used to establish a cell affiliation relationship;

102: The first base station sends the home correspondence information to the first core network element in the first core network element group to which the first base station belongs. The method for obtaining information provided by the embodiment of the invention enables the core network element to automatically obtain the attribution relationship information, thereby reducing manual planning.

Another embodiment of the present invention further provides a method for establishing a cell affiliation, which may include the following content.

301: Receive home correspondence information sent by the first base station.

302: Establish a cell belonging relationship according to the home correspondence information.

In the method of acquiring and establishing a cell affiliation relationship, the content of the affiliation correspondence information is different according to the content of the specific application scenario.

For example, when the connection relationship between the core network elements of the two core network element groups is established, the home relationship information may include:

1) the second base station identification information to which the neighboring cell belongs and the identification information of the second core network element group to which the second base station belongs; or

2) a globally unique identifier of the neighboring cell, such as: GCI (Global Cell Identity) and identification information of the second core network element group to which the second base station to which the neighboring cell belongs; or

3) Tracking Area Indentity (TAI) information of the neighboring cell and identification information of the second core network element group to which the second base station to which the neighboring cell belongs;

For example, when the connection relationship between the two core network element groups is not established, the home correspondence information may include:

1) the second base station identification information to which the neighboring cell belongs, the identification information of the second core network element group to which the second base station belongs, and the identification information and the identifier of the second core network element of the second core network element group Transmitting layer address information of the second core network element; or

2) a globally unique identifier of the neighboring cell, such as: GCI, identification information of the second core network element group to which the second base station to which the neighboring cell belongs, and second core network element of the second core network element group Identification information and transport layer address information of the second core network element; or 3) the TAI to which the neighboring cell belongs, the identification information of the second core network element group to which the second base station to which the neighboring cell belongs, the identification information of the second core network element to which the second base station belongs, and the second core Transport layer address information of the network element; or

4) an identifier of the second core network element group to which the second base station to which the neighboring cell belongs, an identifier of the second core network element, and a transport layer address of the second core network element.

In the embodiment of the present invention, the home corresponding relationship information is obtained, and the cell ownership relationship is dynamically established according to the home correspondence information, thereby reducing manual planning and avoiding resource waste.

The method for obtaining and establishing a cell affiliation relationship provided by the embodiment of the present invention may be specifically applied to multiple communication systems such as LTE (Long Term Evolution) and WCDMA (Wideband Code Division Multiple Access).

The LTE system is used as an example. In the LTE system, the base station is an eNodeB (Evolved NodeB), and the core network element group to which the eNodeB belongs is the MMEG (Mobility Management Entity Group), MMEG. There may be one or more MMEs, for example: One MME Pool (Mobility Management Entity Resource Pool) is an MMEG. The UE (User Equipment) is currently in the cell 1 (cell 1), the cell to which the cell 1 belongs is the eNodeB1 (that is, the first base station), and the core network element group to which the eNodeB 1 belongs is MMEG1 and MMEG1. The MME1 and the MME2 are two entities; the cell adjacent to Cell 1 is Cell 2 (cell 2), the cell to which Cell 2 belongs is eNodeB2 (that is, the second base station), and the core network element group to which eNodeB2 belongs is MMEG2, MMEG2 Contains an entity of MME3.

Referring to FIG. 3, which is a flowchart of a method for acquiring cell information based on an LTE system according to another embodiment of the present invention, an embodiment of the present invention provides a method for acquiring and establishing a cell affiliation relationship, where the method includes the following steps.

201: The eNodeB2 obtains the identifier of the MMEG2 to which the MMEG2 belongs; or, the eNodeB2 obtains the identifier of the MMEG2, the identifier of the MME3, and the transport layer address information of the MME3; For example, the eNodeB2 obtains the identifier of the MMEG2, and when the eNodeB2 starts, it sends an SI Setup Request (SI setup request) message to the MME3, requesting to obtain the identifier of the MMEG2; the MME3 receives the SI Setup Request message, and returns the S1 Setup Response to the eNodeB2. (g卩SI establishes a response) message, the response message carries the identifier of the MMEG2 to which the MME3 belongs, for example, the MMEGI (MME Group ID) is 2. In addition, if one eNodeB belongs to multiple MMEGs, multiple MME group identifier lists are finally obtained, and a corresponding MMEGI list is saved in the eNodeB2.

202: The eNodeB2 sends a broadcast message, where the broadcast message carries the home corresponding relationship information corresponding to the eNodeB2.

For example, the home correspondence information may be carried in a SIB (System Information Block) of a broadcast message.

203: The UE detects the physical identifier of the Cell 2 (eg, Phy-CID), and reports the eNodeB1 to the source cell Cell 1 , and manually configures the physical identifier of the neighbor cell Cell 2 in the eNodeB1.

If eNodeBl can recognize Phy-CID, then eNodeBl and its associated

The MMEG1 stores the association information of the eNodeB2 and does not report the information.

If the eNodeB1 cannot identify the Phy-CID, the e1B eNodeB1 needs to obtain the home correspondence information corresponding to the eNodeB2.

204: The UE reads the home correspondence information corresponding to the eNodeB2 from the broadcast message, and reports the information to the eNodeB 1 to which the source cell Cell 1 belongs;

For example, the ANR (Auto Neighbor Relationship) mechanism may be used, that is, when the UE reports the Global Cell Identification (GCI), the UE reports the attribution corresponding to the base station to which the UE is detected in the broadcast message. The relationship information; the eNodeB1 may also send a new addition message, and notify the UE, for example, an explicit notification, to obtain and report the home correspondence information corresponding to the base station to which the detected cell belongs.

205: The eNodeB1 receives the eNodeB2 to which the Cell 2 belongs and sends the home correspondence information. For example, this process can be implemented by using an X2 message.

In this embodiment, when the eNodeB2 is powered on or the cell ownership relationship of the eNodeB2 changes, the eNodeB2 actively sends the affiliation relationship information to the eNodeB1.

In this embodiment, if the acquisition mode of step 205 is adopted, step 202, step 203, and step 204 may be optional.

206: The eNodeB1 sends the home corresponding relationship information corresponding to the eNodeB2 newly detected by the UE to the MME (eg, MME1) in the MMEG1.

In this embodiment, the eNodeB1 sends a cell affiliation update request message to the MME1, where the request message carries the home correspondence information corresponding to the newly received eNB1, and the request message can be used to add, modify, or delete the content of the cell affiliation association table. ;

The MME1 returns a cell affiliation update response message to the eNodeB1 for indicating the confirmation of the request message.

If the update is unsuccessful, the MME1 returns a cell affiliation update failure message to the eNodeB1, and the failure message may also carry a corresponding Cause (cause value).

Further, the information exchange between the eNodeB and the MME in step 206 can be implemented by using an S1 interface message, or a new message can be implemented.

207: The MME1 dynamically constructs a cell belonging relationship association table according to the received home correspondence information corresponding to the eNodeB2.

208: Communicate between the MMEs in the MMEG to synchronously update the cell belonging relationship association table. There are two entities, MME1 and MME2, in the MMEG1, and the MME1 notifies the MME2 of the updated cell affiliation association table. The specific steps are as follows.

The MME1 sends a cell affiliation update request message to the MME2, where the request message carries the MME1 updated home correspondence information, and the request message can be used to add, modify, or delete the content of the cell affiliation association table.

The MME2 returns a cell affiliation update response message to the MME1 for indicating the acknowledgment of the request message. If the update is unsuccessful, the MME2 returns a cell affiliation update failure message to the MME1, and the failure message may also carry a corresponding Cause (cause value).

Further, the information exchange between the MMEs in step 208 can be implemented by using an S10 interface message, or a new message can be implemented.

Further, in step 206, in the cell attribution relationship, the eNodeB1 may also separately notify

The updated attribution correspondence information of all MMEs in MMEG1.

For the case of the unknown cell, in step 201-208, the cell belonging relationship association table is established in all the network elements of the MMEG to prepare for the handover between the subsequent core network elements.

In the case of the known cell, which is detected when eNodeB2 core network element belongs to the group has changed, eNodeB2 may initiate a configuration update request message to eNodeBl, eNodeBl update the configuration request, the request message carries a home update the _e NodeB2 Corresponding to the relationship information, the eNodeB1 updates the home correspondence information of the eNodeB2 according to the received request message, and returns a configuration update confirmation message to the eNodeB2. This process can be implemented by X2 message.

The above describes the process of obtaining the cell affiliation when the two MMEGs have established a connection relationship. For the case where the connection relationship is not established, the process of acquiring the cell ownership relationship when the connection is established is similar. The difference is that when the connection relationship is established, at least two parameters of the base station identifier (or the globally unique identifier of the cell, or the TAI to which the neighboring cell belongs) and the identifier of the core network element group to which the base station belongs are transmitted. When establishing a connection, at least three parameters of the identity of the core network element group to which the base station belongs, the identity of the core network element in the core network element group, and the transport layer address information are transmitted. For other reasons, reference may be made to the related content when the connection is established as described above, and details are not described herein again. In the case that the connection is not established, since the source core network element has obtained the transport layer address information of the target core network element, the connection establishment process with the target core network element can be initiated actively.

The embodiment of the invention obtains the attribution information of the home, so that the core network element can dynamically establish the cell ownership relationship according to the home correspondence information, thereby reducing manual planning and avoiding resource waste. FIG. 4A is a schematic structural diagram of a base station according to another embodiment of the present invention. This embodiment provides a base station, including: a relationship acquiring unit 401 and a sending unit 402.

The relationship obtaining unit 401 is configured to obtain the home correspondence information, where the home correspondence information includes: identifier information of the second base station to which the neighboring cell belongs or global unique identifier information of the neighboring cell or the neighboring cell belongs to And the identifier information of the second core network element group to which the second base station belongs; wherein, the global unique identifier of the neighboring cell has a corresponding relationship with the second base station to which the neighboring cell belongs and the TAI to which the neighboring cell belongs, Therefore, the global unique identifier of the neighboring cell is equivalent to the second base station identifier to which the neighboring cell belongs and the TAI to which the neighboring cell belongs, and may be interchanged.

The sending unit 402 is configured to send the home correspondence information to the core network element. Further, the attribution correspondence information further includes:

The identification information of the second core network element of the second core network element group and the transport layer address information of the second core network element.

FIG. 4B is another schematic structural diagram of a base station according to another embodiment of the present invention, the base station further includes: a determining unit 403;

The determining unit 403 is configured to receive and identify physical identification information of the neighboring cell. Further, the attribution correspondence information further includes:

The relationship obtaining unit 401 is further configured to: when the physical identifier information of the neighboring cell is not recognized, obtain the home correspondence information from the user equipment; or receive the home correspondence information sent by the second base station.

In addition, when the second base station detects that the core network element group to which the second base station belongs changes, the relationship obtaining unit 401 is further configured to receive the updated home correspondence information reported by the second base station. Further, the sending unit 402 is further configured to send the home correspondence information to the third core network element, where the first core network element and the third core network element belong to the first core network element group .

The base station in this embodiment may be the foregoing eNodeB1, and the specific implementation process thereof is described in the foregoing method embodiment, and details are not described herein again.

The base station provided by the embodiment obtains the home correspondence information, and sends the home correspondence information to the core network element, so that the core network element dynamically establishes the cell attribution relationship according to the home correspondence information, thereby reducing manual planning and avoiding Waste of resources.

FIG. 5A is a schematic structural diagram of a core network element according to another embodiment of the present invention. The core network element may include: a receiving unit 501 and a relationship establishing unit 502, and a connection establishing unit 504.

The receiving unit 501 is configured to receive the home correspondence information sent by the base station.

The relationship establishing unit 502 is configured to establish a cell home relationship connection establishing unit 504 according to the home correspondence information, and configured to actively establish a connection with other core network elements according to the home correspondence information.

Referring to FIG. 5B, the core network element further includes:

The sending unit 503 is configured to send the cell affiliation established by the relationship establishing unit 502 to the third core network element, where the core network element and the third core network element belong to the first core network element group.

The core network element in this embodiment is equivalent to the MME1 in the method embodiment, and the specific implementation process is described in the method embodiment, and details are not described herein again.

The core network element provided in this embodiment dynamically obtains the cell ownership relationship according to the home corresponding relationship information, which reduces the manual planning and avoids resource waste.

FIG. 6 is a schematic structural diagram of a system for acquiring a cell affiliation relationship according to another embodiment of the present invention, where the system may include: a base station and a core network element; The base station is configured to obtain the home correspondence information, and send the home correspondence information to the core network element.

The home correspondence information includes: identifier information of the second base station to which the neighboring cell belongs or globally unique identifier information of the neighboring cell, or a TAI to which the neighboring cell belongs, and a second core network element to which the second base station belongs The identification information of the group; wherein, since the global unique identifier of the neighboring cell has a corresponding relationship with the second base station to which the neighboring cell belongs and the TAI to which the neighboring cell belongs, the global unique identifier of the neighboring cell and the neighboring cell belong to The second base station identifier and the TAI to which the neighboring cell belongs are equivalent in the attribution correspondence information, and are interchangeable.

The core network element is configured to receive the home correspondence information sent by the base station, establish a cell affiliation relationship according to the home correspondence information, and actively establish a connection with other core network elements according to the home correspondence information.

Further, the attribution correspondence information further includes:

The base station may further include:

The relationship obtaining unit 401 is configured to obtain the home correspondence information, where the home correspondence information includes: identifier information of the second base station to which the neighboring cell belongs or global unique identifier information of the neighboring cell or a TAI to which the neighboring cell belongs And the identifier information of the second core network element group to which the second base station belongs; wherein, since the global unique identifier of the neighboring cell has a corresponding relationship with the second base station to which the neighboring cell belongs and the TAI to which the neighboring cell belongs, The global unique identifier of the neighboring cell is equivalent to the second base station identifier of the neighboring cell and the TAI to which the neighboring cell belongs, and may be interchanged.

The sending unit 402 is configured to send the home correspondence information to the core network element.

The core network element may further include:

The receiving unit 501 is configured to receive the home correspondence information sent by the base station;

The relationship establishing unit 502 is configured to establish a cell belonging relationship according to the home correspondence information. The connection establishing unit 504 is configured to actively establish a connection with other core network elements according to the home correspondence information.

Further, the base station further includes: a determining unit 403;

The determining unit 403 is configured to receive and identify the physical identity information of the neighboring cell. The relationship acquiring unit 401 is further configured to: when the physical identity information of the neighboring cell cannot be identified, obtain the home correspondence information from the user equipment. Or receiving the home correspondence information sent by the second base station.

In addition, when the second base station detects that the core network element group to which the second base station belongs changes, the relationship obtaining unit 401 is further configured to receive the updated home correspondence information reported by the second base station.

Further, the sending unit 402 is further configured to send the home correspondence information to the third core network element, where the first core network element and the third core network element belong to the first core network element group .

Further, the core network element further includes:

The base station in this embodiment is equivalent to the eNodeB1 in the method embodiment. The core network element in this embodiment is equivalent to the MME1 in the method embodiment, and the specific implementation process of the base station and the core network element is described in the method embodiment. This will not be repeated here.

The system provided by the embodiment dynamically obtains the cell affiliation relationship according to the affiliation relationship information, reduces the manual planning, and avoids resource waste.

All or part of the technical solutions provided by the above embodiments may be implemented by software programming, and the software program is stored in a readable storage medium such as a hard disk, an optical disk or a floppy disk in a computer. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

Claim

A method for obtaining information, comprising:

The first base station acquires the home correspondence relationship information, where the home correspondence relationship information includes information used to establish a cell affiliation relationship;

The first base station sends the attribution corresponding relationship information to a first core network element in the first core network element group to which the first base station belongs.

The method according to claim 1, wherein the attribution corresponding relationship information comprises one of: an identifier of a second core network element group to which the second base station belongs, and a second core to which the second base station belongs The identifier of the network element and the transport layer address of the second core network element.

The method according to claim 1, wherein the attribution information includes: an identifier of a second core network element group to which the second base station belongs, and any one of the following identifiers: identifier of the second base station a globally unique identifier GCI of the neighboring cell, and a tracking area identifier TAI of the neighboring cell;

The neighboring cell is a cell to which the second base station belongs, and has a neighbor relationship with a cell to which the first base station belongs.

The method according to claim 3, wherein the attribution correspondence information further includes an identifier of a second core network element to which the second base station belongs and a transmission layer of the second core network element Address information.

The method according to any one of claims 1 to 4, wherein the acquiring, by the first base station, the home correspondence information comprises:

The first base station receives the home correspondence relationship information sent by the user equipment or the second base station.

6. The method of any of claims 1-5, wherein the method further comprises:

The first base station sends the attribution corresponding relationship to other core network NEs in the first core network element group.

A method for establishing a affiliation relationship, the method comprising: receiving, by a first base station, attribution corresponding relationship information;

Establishing a cell belonging relationship according to the home correspondence information.

The method according to claim 7, wherein the attribution information includes one of the following: an identifier of a core network element group to which the second base station belongs, and a core network to which the second base station belongs The identity of the element and the transport layer address of the core network element.

The method according to claim 7, wherein the attribution information includes: an identifier of a core network element group to which the second base station belongs, and any one of the following identifiers: identifier of the second base station, phase a globally unique identifier GCI of the neighboring cell, and a tracking area identifier TAI of the neighboring cell;

The method according to claim 9, wherein the attribution correspondence information further includes an identifier of a core network element to which the second base station belongs and a transport layer address information of the core network element.

The method according to claim 8 or 10, wherein the method further comprises: establishing a connection with the core network element according to a transport layer address of a core network element to which the second base station belongs.

The method according to claim 7, wherein the receiving, after receiving the home correspondence information sent by the first base station, the method further includes:

The home correspondence is sent to other core network elements belonging to the same core network element group.

A base station, the base station includes: a relationship acquiring unit and a sending unit;

The relationship obtaining unit is configured to obtain the home correspondence information, where the home correspondence information includes information used to establish a cell affiliation relationship;

The sending unit is configured to send the home correspondence information to a core to which the base station belongs The first core network element in the heartbeat network element group.

14. The base station of claim 13 wherein:

The relationship obtaining unit is specifically configured to receive the attribution corresponding relationship from a user equipment or a second base station.

The base station according to claim 13 or 14, wherein

The sending unit is further configured to send the home correspondence information to other core network elements in the core network element group.

A core network element, wherein the core network element includes:

a receiving unit, configured to receive the home correspondence information sent by the base station;

a relationship establishing unit, configured to establish a cell belonging relationship according to the home correspondence information.

The core network element of claim 16, wherein the core network element further comprises:

And a sending unit, configured to send the home correspondence received by the receiving unit to other core network elements that belong to the same core network element group as the core network element.

18. The core network element of claim 16, wherein the core network element further comprises:

The connection establishing unit is configured to establish a connection with other core network elements according to the home correspondence information.

19. A system, the system comprising:

The base station is configured to obtain the home correspondence information, and send the home correspondence information to the first core network element in the core network element group to which the base station belongs, where the home correspondence information includes used to establish a cell. Information about the affiliation relationship;

The core network element is configured to receive the home correspondence information sent by the base station, and establish a cell belonging relationship according to the home correspondence information.

The system according to claim 19, wherein the attribution information includes one of the following: an identifier of a second core network element group to which the second base station belongs, and a second base station to which the second base station belongs. The identifier of the second core network element and the transport layer address of the second core network element.

The system according to claim 19, wherein the base station is further configured to send the home correspondence information to other core network elements in the core network element group.