WO2009143769A1

WO2009143769A1 - Method, apparatus and system for sending neighboring cell list

Info

Publication number: WO2009143769A1
Application number: PCT/CN2009/072003
Authority: WO
Inventors: 黄英; 张宏卓
Original assignee: 华为技术有限公司
Priority date: 2008-05-29
Filing date: 2009-05-26
Publication date: 2009-12-03
Also published as: CN101594651A; CN101594651B

Abstract

A method for sending a neighboring cell list is provided. The method includes steps as following: there is an adjacency relation between a first cell of a first access control entity and a second cell of a second control entity, a retransmitting entity retransmits content of a first message sent by the first access control entity to the second control entity, the content of the first message includes the neighboring cell list of the first cell; wherein, the retransmitting entity retransmitting the content of the first message sent by the first access control entity to the second access control entity includes that the retransmitting entity retransmits the content of the first message to the second access control entity based on the indication information of the first message. The corresponding apparatus and system are further provided.

Description

Method, device and system for transmitting a neighbor cell list

[1] This application claims priority to Chinese Patent Application No. 200810067603.8, entitled "Method, Apparatus and System for Sending a List of Neighboring Cells", filed on May 29, 2008, the entire contents of which are incorporated by reference. The bow I is used in conjunction with this application.

[2] Technical field

[3] The present invention relates to the field of communications, and in particular, to a method, device, and system for transmitting a neighbor cell list

[4] Background of the invention

[5] The neighbor cell list contains information such as the neighbor cell identifier and the neighbor cell bandwidth. This information is used for switching.

, management, etc., with long-term evolution (Long Term

Evolution, LTE) system as an example, an evolved base station in the system (evolved

The NodeB and the eNB are the X2 interfaces. For the planned neighboring cell, when the X2 interface is established, the eNB establishes a message through the X2 interface to transmit the neighbor cell list. When the networks of different systems coexist, in order to improve the user terminal (User

Equipment, UE) The success rate of handover between different systems. The neighboring cell list needs to be configured between cells of different systems.

[6] In the process of implementing the present invention, the inventors found that the prior art has the following problems:

[7] If there is no interface between the access control entities to which the neighboring cell belongs in the same system, how to configure the neighbor cell list, there is no relevant discussion at present; between different systems, if there are neighbors between cells of different access control entities Relationship, how to configure the list of neighboring cells, there is no relevant discussion at present.

[8] Summary of the invention

[9] An object of the embodiments of the present invention is to provide a method, an apparatus, and a system for transmitting a neighbor cell list, so that an access control entity having no interface can transmit a neighbor cell list, thereby improving the efficiency of configuring a neighbor cell list.

[10] The embodiment of the present invention provides a method for sending a neighbor cell list, where the first cell of the first access control entity and the second cell of the second access control entity have an adjacency relationship, and the method includes: The content of the first message sent by the first access control entity is forwarded to the second access control entity, where the content of the first message includes a list of neighboring cells of the first cell, where the forwarding entity Forwarding the content of the first message sent by the first access control entity to the second access control entity includes: the forwarding entity, according to the indication information in the first message, the content of the first message Forwarding to the second access control entity.

An embodiment of the present invention provides another method for sending a neighboring cell list, where a first cell of a first access control entity and a second cell of a second access control entity have an adjacency relationship, and the first access There is no interface between the control entity and the second access control entity, the method includes: adding a new interface between the first access control entity and the second access control entity; The ingress control entity sends the neighbor cell list of the first cell to the second access control entity by using the new interface.

The embodiment of the present invention provides a forwarding entity, where the forwarding entity includes: a receiving unit, an obtaining unit, and a sending unit, where the receiving unit is configured to receive a first message from the first access control entity, The content of the first message includes a neighbor list of the first cell where the first access control entity is located, and indication information indicating the second access control entity, where the first cell and the second access control entity The second cell has an adjacency relationship; the acquiring unit is configured to obtain the indication information from the first message, and the sending unit is configured to send, according to the indication information acquired by the acquiring unit, a second access control entity Send the content of the above first message.

[13] The embodiment of the present invention provides a system, where the system includes: a first access control entity, a first forwarding entity, a second forwarding entity, and a second access control entity, where the first access control entity The first cell and the second cell of the second access control entity have an adjacency relationship, and the first access control entity is configured to send a first message to the first forwarding entity, where the content of the first message includes the first a neighboring cell list of the cell, and indication information indicating the second access control entity; the first forwarding entity, configured to receive the first message from the first access control entity, obtain the indication information, and further And sending, according to the indication information, the first message to the second forwarding entity; the second forwarding entity, configured to receive the first message, obtain the indication information, and further used to send the second access according to the indication information The control entity forwards the content of the first message; the second access control entity is configured to receive the neighbor cell list.

[14] The technical solution implemented by the embodiment of the present invention can enable the access control entity without the interface to transmit the neighbor cell list, thereby avoiding manually configuring the neighbor cell list and improving the configuration of the neighbor cell list. Table efficiency.

[15] BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic structural diagram of an LTE system according to an embodiment of the present invention;

FIG. 2 is a schematic flowchart of a method for sending a neighbor cell list according to an embodiment of the present invention; FIG.

FIG. 3 is a schematic flowchart diagram of another method for sending a neighbor cell list according to an embodiment of the present invention; FIG.

FIG. 4 is a schematic flowchart diagram of another method for sending a neighbor cell list according to an embodiment of the present invention; FIG.

FIG. 5 is a schematic structural diagram of another LTE system according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic flowchart diagram of another method for sending a neighbor cell list according to an embodiment of the present invention; FIG.

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

FIG. 8 is a schematic structural diagram of another LTE system according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic structural diagram of another LTE system according to an embodiment of the present invention; FIG.

FIG. 10 is a schematic structural diagram of a forwarding entity according to an embodiment of the present invention; FIG.

Figure 11 is a block diagram showing the structure of a system in accordance with an embodiment of the present invention.

[27] Mode for carrying out the invention

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

In the embodiment of the present invention, the parameter of the neighboring cell list includes the cell identifier, and may include but is not limited to: any combination of type, bandwidth, and frequency point, where the type may indicate a supported network type: for example, supporting a circuit domain or a grouping The domain may also be a supporting circuit domain and a packet domain, and the type may also indicate a type of a cell: a home base station cell or a macro cell.

[30] The embodiment of the present invention provides a method for transmitting a neighbor cell list. As shown in FIG. 1 , there is no X2 interface between eNB 1 and eNB 2 in LTE, and cells in cell 1 and eNB 2 in eNB 1

2 is an adjacency relationship, as shown in FIG. 2, which is a schematic flowchart of an embodiment of the present invention, including:

[31] Step 201, eNB 1 to Mobile Management Entity 1 (Mobility Management

Entity, MME1) sends a first message, where the first message carries a cell

A list of neighboring cells, and information indicating the eNB2, the information may include but is not limited to: an identifier ID of the eNB2.

[32] In this step, if the S1 interface is not established between the eNB1 and the MME1, the first message is the S1 interface. The first message is an S1 interface update message, or another S1 interface message, if the SI interface between eNB1 and MME1 has been established.

[202] Step 202: The MME1 receives the first message, and finds the MME2 to which the eNB2 belongs according to the information indicating the eNB2.

Sending an S10 interface message to the MME2, where the S10 message is used to forward the first message.

[34] In this embodiment, the S10 message may be a currently existing message, and the first message is used as a signal (information).

Element, IE) is carried in the message, or it can be added as an S10 message.

[35] Step 203: The MME2 receives the first message, and sends a second message carrying the neighbor cell list to the eNB2.

[36] In this step, if the S1 interface is not established between the MME2 and the eNB2, the MME sends the neighboring cell list to the eNB2 in the S1 interface setup request message, or the MME2 caches the first message, and the eNB2 requests to establish the S1 interface. The MME2 sends the neighboring cell list to the eNB2 in the S1 interface setup response. If the S1 interface between the MME2 and the eNB2 has been established, the second message is an S1 interface update message, or another S1 interface message.

In the embodiment of the present invention, the MME1 and the MME2 may be the same MME, and therefore, the message forwarding step between the MMEs is not required.

In the LTE system, if an eNB does not have an X2 interface, if the cell has an adjacency relationship, the neighboring cell list can be sent through the interface between the eNB and the MME and the interface between the MMEs, thereby avoiding manual configuration. Adjacent cell list improves the efficiency of neighbor cell list configuration.

[39] The embodiment of the present invention provides another method for sending a neighbor cell list, specifically, an LTE system and a global mobile communication system (Universal Mobile Telecommunications)

For example, the method for transmitting the neighboring cell list between the system and the UMTS is as follows. The eNB in the LTE triggers the process as an example. FIG. 3 is a schematic flowchart of the embodiment of the present invention, including:

[40] Step 301 is similar to step 201. In the embodiment of the present invention, the indication information carried in the first message is information indicating a radio network controller (RNC).

[41] Step 302: The MME receives the first message, obtains a neighbor cell list, and finds the foregoing R according to the indication information.

The core network entity corresponding to the NC: Serving General Packet Radio Service Support Node (Serving General Packet)

Radio Service Supporting Node, SGSN), and sends an S3 interface message to the SGSN for forwarding the first message.

[42] Step 303: The SGSN receives the first message, obtains a neighbor cell list, and sends a second message to the RNC, where the second message carries the neighbor cell list.

[43] In this step, the second message is an Iu interface message, which may be a new Iu interface message, or an existing Iu interface message, for example, an information transmission indication (INFORMATION TRANSFER)

INDICATION) A message or other message that is sent in the message as a cell IE.

In the embodiment of the present invention, the process may also be triggered by the RNC, and the specific implementation is similar to the method in this embodiment.

, no longer praise here.

In the embodiment of the present invention, the neighboring cell list is transmitted through the message between the eNB of the LTE and the RNC of the UMTS, which avoids manually configuring the neighbor cell list, and improves the efficiency of configuring the neighbor cell list.

[46] The embodiment of the present invention provides another method for sending a neighbor cell list, specifically, an LTE system and a global mobile communication system (Global System for Mobile).

A method for transmitting a neighboring cell list between the communications and the GSM, and the eNB in the LTE triggers the process as an example. FIG. 4 is a schematic flowchart of the embodiment of the present invention, including:

[47] Step 401 is similar to step 201. In the embodiment of the present invention, the indication information carried in the first message is information indicating a base station subsystem (BSS).

[48] Step 402 is the same as step 302.

[49] Step 403: The SGSN sends a second message to the BSS, where the second message carries the neighbor cell list included in the first message.

[50] In this step, the second message is a Gb/A interface message, which may be a new Gb/A interface message, or an existing Gb/A message, for example, a resource request (RESOURCE)

REQUEST) message, or resource indication (RESOURCE

INDICATION) message, or no connection information (CONNECTIONLESS

INFORMATION) A message, or other message, carries the list of neighboring cells as an IE in the message.

[51] In this step, the process may also be triggered by the BSS, and the specific method is similar to the method in this embodiment, and is not mentioned here. [52] The method implemented by the present invention is also applicable to the transmission of a neighbor cell list between the RNC and the BSS.

The Iu interface between the RNC and the SGSN, and the Gb/A interface between the BSS and the SGSN, are sent to the neighboring cell list. The specific method is similar to the above embodiment, and is not mentioned here.

In the embodiment of the present invention, the neighboring cell list is transmitted through the message between the eNB of the inter-system LTE and the BSS of the GSM, thereby avoiding manual configuration and improving the efficiency of configuring the neighbor cell list.

An embodiment of the present invention provides another method for transmitting a neighboring cell list, and FIG. 5 is a system structural diagram of an embodiment of the present invention. In the LTE system, there is no X2 interface between the eNB1 and the eNB2, and the cell in the eNB1. Ce

11 1 and cell in eNB2

Network, SON) manages the eNB. FIG. 6 is a schematic flowchart of the embodiment of the present invention, including:

[55] Step 601: The eNB1 sends a first message to the SON, where the first message carries the cell.

a list of neighboring cells, and information indicating the eNB2, the indication information may include but is not limited to: an ID of the eNB 2.

[56] Step 602: The SON receives the first message, obtains a neighbor cell list, and sends the neighbor cell list to the eNB2 according to the indication information.

In the embodiment of the present invention, the neighboring cell list may be actively sent by the SON. Then, the SON sends the neighbor cell list to the eNB1 and the eNB2, respectively.

[58] In the system structure diagram of the embodiment of the present invention, a background network management system may also be added between the eNB and the SON:

System, EMS), as shown in Figure 7, the information exchange between the eNB and the SON needs to be forwarded by the EMS. Alternatively, an interface is added between the EMSs, as shown in FIG. 8, the eNB's neighbor cell list is directly transmitted between the EMSs.

The method of the embodiment of the present invention is also applicable to the transmission of the neighboring cell list between different systems, and the information exchange with the SON is the eNB and the RNC, or the eNB and the BSS, respectively.

In the embodiment of the present invention, the neighboring cell list is sent by the eNB between the eNBs without the interface, or between the eNB and the RNC, or between the eNB and the BSS, thereby avoiding manual configuration and improving the efficiency of configuring the neighbor cell list. An embodiment of the present invention provides another method for sending a neighbor cell list, adding a new interface between different access control entities, using an Xy interface, and sending a neighbor cell list on the interface, as shown in FIG. The system structure diagram of the embodiment of the present invention is shown by using LTE and UMTS as an example, the cell in the eNB

1 and cell in RNC

2 If there is an adjacency relationship, an Xy interface is added between the eNB and the RNC, and a neighbor cell list is sent through the message of the interface.

[62] In the embodiment of the present invention, a new interface is added between the access network control entities that do not have an interface, and the neighbor cell list is sent on the interface, which avoids manually configuring the neighbor cell list, and improves the efficiency of the neighbor cell list configuration. .

An embodiment of the present invention provides a forwarding entity, where the forwarding entity includes: a receiving unit 1001, an obtaining unit 1002, and a sending unit 1003, where

[64] The receiving unit 1001 is configured to receive, by the first access control entity, a first message, where the first message carries a neighbor list of the first cell in the first access control entity, and an indication indicating the second access control entity Information

[65] The obtaining unit 1002 is configured to obtain indication information from the first message.

[66] The sending unit 1003 is configured to send, according to the indication information acquired by the obtaining unit 1002, the foregoing neighbor cell list to the second access control entity.

[67] If the first access control entity and the second access control entity do not correspond to the same core network entity, the sending unit 1003 is further configured to use the indication information acquired by the obtaining unit 1002 to the second access control entity. The corresponding forwarding entity sends the foregoing first message, and then the forwarding entity sends the foregoing neighbor cell list to the second access control entity.

[68] If the SON manages the forwarding entity, the sending unit 1003 is further configured to send the first message to the SON according to the indication information, and then send, by the SON, the foregoing neighbor cell list to the second access control entity.

The forwarding entity provided by the embodiment of the present invention enables the access control entity that has no interface to transmit the neighbor cell list through the message, which avoids manually configuring the neighbor cell list, and improves the efficiency of the neighbor cell list configuration.

An embodiment of the present invention further provides a system, where the system includes: a first access control entity 1101, a first The forwarding entity 1102, the second forwarding entity 1103, the second access control entity 1104, the first cell of the first access control entity 1101 and the second cell of the second access control entity 1103 have an adjacency relationship, wherein [71] The first access control entity _{1101 is} configured to send a first message to the first forwarding entity ₁₁₀₂ , where the first message includes a neighbor cell list of the first cell, and indication information indicating the second access control entity 1103; [72] The first forwarding entity _{1102 is} configured to receive the first message, obtain the indication information, and forward the first message to the second forwarding entity 1103 according to the indication information;

[73] The second forwarding entity 1103 is configured to receive the first message, and is further configured to obtain the indication information, and send the foregoing neighbor cell list to the second access control entity 1104 according to the indication information.

[74] The second access control entity _{1104 is} configured to receive the foregoing neighbor cell list.

[75] The system may further include SON, and the first forwarding entity 1102 is further configured to send the first message to the SON.

[76] SON, configured to receive the first message, obtain the indication information, and send the first message to the second forwarding entity 11 03 according to the indication information;

[77] The second forwarding entity _{1103 is} further configured to receive the first message from the SON, obtain the indication information, and send the foregoing neighbor cell list to the second access control entity 1104 according to the indication information.

In the embodiment of the present invention, the first forwarding entity and the second forwarding entity may be the same entity. The first forwarding entity is any one of the MME, the SGSN, and the SON.

[79] The first forwarding entity and the second forwarding entity may also be the MME and the SGSN, or the SGSN and the MME, respectively, and may also be the MME or the EMS.

The system provided by the embodiment of the present invention enables the access control entity without the interface to transmit the neighbor cell list through the message, which avoids manually configuring the neighbor cell list and improves the efficiency of the neighbor cell list configuration.

[81] The above is a detailed description of a method for transmitting a neighbor cell list provided by the present invention. The principle and implementation manner of the present invention are described in the following. The description of the above embodiment is only for helping to understand The method of the present invention and its core idea; at the same time, those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and the scope of application, in summary, the contents of this specification are not It should be understood that the invention is limited.

Claims

Claim

[1] A method for transmitting a neighbor cell list, wherein the first cell of the first access control entity and the second cell of the second access control entity have an adjacency relationship, the method includes: forwarding the entity The content of the first message sent by the first access control entity is forwarded to the second access control entity, where the content of the first message includes a neighbor cell list of the first cell, where the forwarding entity Forwarding, by the forwarding entity, the content of the first message to the second access control entity: the forwarding entity forwards the content of the first message according to the indication information in the first message Giving the second access control entity.

[2] The method according to claim 1, wherein the forwarding entity comprises a first forwarding entity and a second forwarding entity, and the forwarding entity sends the first message sent by the first access control entity Forwarding the content to the second access control entity includes:

The first forwarding entity forwards the content of the first message to the second forwarding entity; the second forwarding entity forwards the content of the first message to the second access control entity, where the first The content of the message includes a list of neighboring cells of the first cell;

The forwarding, by the first forwarding entity, the content of the first message to the second forwarding entity includes: forwarding, by the first forwarding entity, the first message to the second forwarding entity according to the indication information Content

Forwarding, by the second forwarding entity, the content of the first message to the second access control entity, that the second forwarding entity forwards the first message to the second access control entity according to the indication information Content.

[3] The method according to claim 2, wherein the first access control entity is an evolved base station eNB, a radio network controller RNC or a base station subsystem BSS; and the second access control entity is e NB, RNC or BSS;

The first forwarding entity is a serving general packet radio service support node SGSN, a mobility management entity MME or an ad hoc network SON;

The second forwarding entity is an SGSN or an MME.

[4] The method according to any one of claims 1 to 2, wherein A message is: SI interface message or Iu interface message.

[5] The method according to claim 2, wherein the forwarding, by the first forwarding entity, the content of the first message to the second forwarding entity comprises:

The first forwarding entity forwards the content of the first message to the second forwarding entity according to the indication information and by using an S10 or S3 interface message.

[6] The method according to any one of claims 1 to 2, wherein the parameter of the neighboring cell list comprises: at least one of a type, a bandwidth, and a frequency point.

[7] The method according to claim 6, wherein the type indicates that the supported network type is a circuit domain and/or a packet domain;

Or, the type indicates that the cell type is a macro cell or a home base station cell.

[8] A method for transmitting a neighboring cell list, where the first cell of the first access control entity and the second cell of the second access control entity have an adjacency relationship, the first access control entity and There is no interface between the second access control entities, and the method includes:

Adding a new interface between the first access control entity and the second access control entity; the first access control entity sends the first access control entity to the second access control entity by using the new interface A list of neighboring cells of a cell.

[9] The method according to claim 8, wherein the first access control entity and the second access control entity are an evolved base station eNB and an eNB, or an eNB and a base station subsystem BSS, or It is an eNB and a radio network controller RNC, or a BSS and an eNB, or an RNC and an eNB, or an RNC and a BSS, or a BSS and an RNC.

[10] The method according to claim 8 or 9, wherein the parameter of the neighboring cell list includes

: At least one of type, bandwidth, and frequency.

[11] The method according to claim 10, wherein the type indicates that the supported network type is a circuit domain and/or a packet domain;

[12] A forwarding entity, where the forwarding entity includes:

a receiving unit, configured to receive a first message from the first access control entity, where the content of the first message includes a neighbor list of the first cell where the first access control entity is located, and a second access control The indication information of the entity, the first cell and the second cell of the second access control entity have an adjacency relationship;

An obtaining unit, configured to obtain the indication information from the first message;

And a sending unit, configured to send, according to the indication information, content of the first message to the second access control entity.

[13] The method according to claim 12, wherein the first message is an S1 interface message or an Iu interface message.

[14] A system, the system includes: a first access control entity, a first forwarding entity, and a second access control entity, where the first cell of the first access control entity The second cell of the second access control entity has an adjacency relationship,

The first access control entity is configured to send a first message to the first forwarding entity, where the content of the first message includes a neighbor cell list of the first cell and a second access control entity Indication information;

The first forwarding entity is configured to receive the first message from the first access control entity, obtain the indication information, and further use, and forward, according to the indication information, to the second access control entity. The content of the first message;

The second access control entity is configured to obtain the neighbor cell list.

[15] The system according to claim 14, wherein the system further includes the first forwarding entity of the ad hoc network SON, and is further configured to send the first message to the ad hoc network SON; The self-organizing network SON is configured to receive the first message, obtain the indication information, and send the content of the first message to the second access control entity according to the indication information.

[16] The system according to claim 14 or 15, wherein the first message is an S1 interface message or an Iu interface message.