WO2012024962A1

WO2012024962A1 - Method and system for implementing automatic neighbor relation measurement

Info

Publication number: WO2012024962A1
Application number: PCT/CN2011/075679
Authority: WO
Inventors: 贺美芳; 史莉荣
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-08-24
Filing date: 2011-06-13
Publication date: 2012-03-01
Also published as: CN102378247B; CN102378247A

Abstract

A method and system for implementing an Automatic Neighbor Relation (ANR) measurement are provided in the present invention. In the invention, while a User Equipment (UE) is determined to be in a common connection status, the network side transmits a measurement control message of the ANR to the UE, and the UE executes the ANR measurement of dedicated control according to the obtained measurement control message of the ANR, and reports a measurement result to the network side. The method in the invention, by taking use of a UE which is in a common connection status, achieves an ANR measurement of dedicated control and realizes an ANR report, moreover, because the ANR measurement is achieved in the common connection status of the UE, the resources in the air are saved, the using experience for the UE is improved, and the terminal service of the dedicated status can not be affected.

Description

Method and system for realizing automatic neighborhood relationship measurement

The present invention relates to a neighbor relationship management technique, and more particularly to a method and system for realizing automatic neighborhood relationship measurement. Background technique

In order to meet the increasing number of users of cellular mobile communication system operators and the continuous improvement of users' service requirements, the scale of cellular networks will continue to expand, the number of base stations will continue to increase, and various types of cellular mobile communication systems will continue to deepen each other. Cooperative operation. However, the management and maintenance of the neighbor relationship of the cell in the cellular network becomes more and more cumbersome, and the operator expects that the manual neighbor relationship management in the past can be automated by the system.

As shown in FIG. 1 , in a UTRA network, a universal terrestrial radio access network (UTRAN) includes two basic network elements: a radio network controller (RNC) and a base station (NodeB). The neighboring relationship of many small sections under hundreds of NodeBs will change dynamically with the needs of network planning optimization and the changes in the wireless environment.

In UTRA networks, the correct neighborhood relationship in the small interval is very important for network performance. For example: When implementing user terminal (UE) optimal handover, ensuring service continuity, and helping the network achieve load balancing, capacity allocation, energy saving, etc., the neighbor relationship is used. Under the manual neighboring area management, the network side notifies the UE of the pre-configured neighbor relationship through the system broadcast message or the proprietary control message, and the UE further stores and utilizes the received neighbor relationship. However, this kind of neighbor relationship configured from the network side in advance may be outdated and cannot truly reflect the real-time neighbor relationship. For example: Due to the intricacies of the wireless environment, especially in the dense urban environment of high-rise buildings, it is difficult to determine exactly which neighboring areas should be configured in a certain area in the initial stage of network planning; A cell or cell attribute change is added, and the neighbor relationship of the cell is not updated in time; or the change of the environment or the omission of the network planner may cause the neighbor information to be updated in time. In this way, the UE cannot switch to other cells in time, and the load of the cell is too high, the signal quality of the cell is deteriorated, the interference is serious, or the user drops the call.

The cell information is composed of cell physical layer information and cell high layer information. The physical layer information of the cell is the primary scrambling code (PSC) of the cell. In the network planning, the PSC is unique in a certain area. The high-level information of the UTRAN includes a public land mobile network (PLMN) and a cell unique identifier (CID) in the PLMN, or includes a PLMN, a routing area identifier (RAI), and a location area identifier (LAI). The three parts, or, include the PLMN, RAI, LAI and CID four parts. The higher layer information of the evolved UTRAN (E-UTRAN) cell includes Cell Global Information (CGI), Path Domain Code (TAC), and Public Land Mobile Network List (PLMN list). The high-level information of the GSM cell includes CGI and RAC.

In order to be able to configure the neighbor relationship of the cell in time, the industry proposes that the UMTS system uses the Automatic Neighbor Relation (ANR) function to add the neighbor cell list in the dedicated connected state Cell DCH, that is, the dedicated channel connection state. The ANR function is to receive the measurement control message sent by the network side in the dedicated connection state, to assist in measuring the physical layer information of the new cell and to send it to the network side, and the network side can learn the UE in the dedicated connection state. The high-level information of a specific cell, the network side completes the function of adding a neighbor cell list, and the addition does not need to manually add neighbor cells, that is, the system automatically completes.

In the automatic management of the existing neighbor relationship, the UE performs the ANR measurement in the dedicated state, which wastes the air resources and affects the UE usage feeling. Summary of the invention

In view of this, the main object of the present invention is to provide a method and system for realizing automatic neighbor relationship measurement, which can save air resources and improve the experience of using the UE.

In order to achieve the above object, the technical solution of the present invention is achieved as follows: A method for realizing automatic neighborhood relationship measurement, comprising:

The user equipment UE reports to the network side that it has the automatic neighbor relationship ANR capability; the network side determines that the UE is in the public connection state, and sends the ANR measurement control information to the UE; the UE performs the dedicated control ANR measurement according to the obtained ANR measurement control information, and Report the measurement results to the network side.

The UE reports the ANR capability of the automatic neighboring cell relationship through the uplink air interface signaling, where the uplink air interface signaling is a wireless connection establishment request message, or a cell update message, or a radio resource control connection completion message.

The reporting has its own automatic neighbor relationship ANR capability: the terminal ANR capability supporting cell indicates whether the UE has the ANR capability.

The network side determines that the UE is in a public connection state:

Receiving, by the network side, a wireless connection request message, and determining that the terminal enters a public connection state;

Or, the UE switches from the idle state to the public connection state, and sends a radio resource control connection complete message on the forward access channel FACH channel; and the UE switches from the forward access channel state cell_fach of the terminal to the paging channel of the terminal. State cell_pch.

The ANR measurement control information sent by the network side includes:

The network side sends the ANR measurement control information by using the downlink air interface signaling message; the downlink air interface signaling message is a new control measurement message.

The ANR measurement control information is:

For intra-frequency measurement, an indication of the measurement of the intra-frequency detection set and/or an acquisition indication of the high-level information of a specific cell are added to the intra-frequency measurement list;

For the inter-frequency measurement, adding a measurement indication of the inter-frequency detection set and/or an acquisition indication of the high-level information of a specific inter-frequency cell in the inter-frequency measurement list;

For inter-system measurements, an indication of the measurement of the inter-system detection set and/or an indication of the acquisition of high-level information for a particular inter-system cell is added to the inter-system measurement list. The reporting of the measurement result by the UE to the network side includes:

The UE carries the measurement result in a newly added message, or is reported in a radio network control RRC message.

When the UE carries the measurement result in the RRC message, the RRC message is: an initial direct transmission message, or a measurement report, or a radio network control connection request message, or an uplink direct transmission message, or a cell update message.

The measurement report includes at least: detecting physical layer information of the set cell, and/or high layer information of the specific cell.

A system for implementing automatic neighbor relationship measurement includes a UE and a network side, where the network side is configured to determine that the UE is in a public connection state, and send ANR measurement control information to the UE.

The UE is configured to report the ANR capability to the network side; perform ANR measurement of the dedicated control according to the obtained ANR measurement control information, and report the measurement result to the network side.

It is also used to perform neighbor relationship update and/or handover decision according to the received measurement result. The network side includes a radio network controller RNC.

As can be seen from the technical solution provided by the present invention, when determining that the UE is in the public connection state, the network side sends ANR measurement control information to the UE, and the UE performs dedicated control ANR measurement according to the obtained ANR measurement control information, and performs network control on the network. The measurement results are reported on the side. The method of the present invention implements the ANR measurement of the dedicated control by using the UE in the public connection state, and realizes the reporting of the automatic neighbor relationship. Moreover, since the ANR measurement is completed in the public connection state of the UE, the air resource is saved, and the UE is improved. The use of feelings does not cause business impact on terminals in a dedicated state. DRAWINGS

Figure 1 is a schematic diagram showing the structure of an existing UTRA;

2 is a flowchart of a method for implementing automatic neighbor relationship measurement according to the present invention;

3 is a schematic structural diagram of a system for implementing automatic neighbor relationship measurement according to the present invention; 4 is a schematic flowchart of a first embodiment of implementing automatic neighbor relationship measurement according to the present invention; FIG. 5 is a schematic flowchart of a second embodiment of implementing automatic neighbor relationship measurement according to the present invention. detailed description

2 is a flowchart of a method for implementing automatic neighbor relationship measurement according to the present invention. As shown in FIG. 2, the method includes:

Step 200: The UE reports to the network side that it has the ANR capability.

In this step, the UE informs the network side that it has the ANR capability through uplink air interface signaling. The uplink air interface signaling is a wireless connection establishment request message, or a cell update message, or a radio resource control connection completion message.

Step 201: The network side determines that the UE is in a public connection state, and sends ANR measurement control information to the UE.

In this step, the network side instructs the UE to perform dedicated ANR measurement through the downlink air interface signaling message, and sends ANR measurement control information. The downlink air interface signaling message is a new measurement control message (Measure Control Message).

This step emphasizes that the network side sends the ANR measurement control information to the UE after determining that the UE is in the public connection state. In this way, ANR measurements using dedicated connected UEs to perform dedicated control are achieved.

Step 202: The UE performs ANR measurement of the dedicated control according to the obtained ANR measurement control information, and reports the measurement result to the network side.

The reporting method of the measurement result may be: carrying a new message, such as a supplementary measurement report, or carrying an existing RRC message. Existing RRC messages include but are not limited to: Initial Direct Transfer message, or Measurement Report, or RRC Connection Request message, or Uplink Direct Transfer ) Message, or Cell Update message, etc. The method of the present invention further includes: the network side performing a neighbor relationship update and/or handover decision according to the received measurement result. The specific implementation belongs to the prior art, and the implementation method thereof is not related to the present invention, and the scope of protection of the present invention is not limited.

In the method of the present invention, after determining that the UE is in the public connection state, the network side sends the ANR measurement control information to the UE, and the UE performs the dedicated control ANR measurement according to the obtained ANR measurement control information, and reports the measurement result to the network side. The method of the invention completes the ANR measurement of the dedicated control by using the UE in the public connection state, realizes the automatic neighbor relationship, and, since the ANR measurement is completed in the public connection state of the UE, the air resource is saved, and the use of the UE is improved. Feeling, does not cause business impact on the terminal in a dedicated state.

For the method of the present invention, a system for implementing automatic neighbor relationship measurement is also provided. As shown in FIG. 3, at least a UE and a network side are included, where

The network side is configured to determine that the UE is in a public connection state, and send ANR measurement control information to the UE.

The network side is further configured to perform neighbor relationship update and/or handover decision according to the received measurement result.

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

4 is a schematic flowchart of a first embodiment of implementing automatic neighbor relationship measurement according to the present invention. In the first embodiment, ANR measurement is performed in a public connection state in which a UE is in a forward access channel state (cell_fach), as shown in FIG. , including the following steps:

Step 400: The UE carries an ANR capability indication in a RRC Connection Request message through a Common Control Channel (CCCH) channel, and notifies the network side such as the RNC whether or not it has the ANR capability. The ANR capability indication may be indicated by the terminal ANR capability support cell shown in Table 1. ANR f 3⁄4 ^7 ^ (ANR optional boolean if present and takes the value of system version support) cell (OP) ( Boolean ) true ( ture ) , indicating UE 10

Support ANR capability; if ( REL-10 does not exist, it means the UE is not supported)

Table 1

Table 1 is only an example, and is not intended to limit the manner in which the ANR capability is indicated, nor is it intended to limit the scope of the present invention.

Step 401: The RNC receives the wireless connection request message, and learns that the UE has the ANR capability. At the same time, in this step, according to the prior art, the RNC determines that the terminal enters the public connection state according to a certain internal strategy, such as the load on the public channel is not large.

Then, the RNC sends a radio resource control setup (RRC Connection Setup) message to the UE, and carries the indication that the RRC state is a forward access channel (FACH) connection state (RRC state=cell_fach) in the radio resource control setup message. ).

Step 402 to step 403: The UE switches from the idle state to the public connection state, and sends a radio resource control connection complete (RRC Connection Complete) message on the FACH channel.

Step 404: The RNC selects the UE in the public connection state to perform the ANR measurement, and then the RNC sends a measurement control message on the CCCH channel. The message is sent to the UE, and the ANR measurement control information for the ANR measurement is carried in the measurement control message.

In this step, the ANR measurement control information includes three scenarios: intra-frequency measurement, inter-frequency measurement, and inter-system measurement. An indication of the measurement of the intra-frequency detection set and/or an acquisition indication of the high-level information of a particular cell is added to the intra-frequency measurement list. The measurement indication of the inter-frequency detection set and/or the acquisition indication of the high-level information of a specific inter-frequency cell are added to the inter-frequency measurement list. An indication of the measurement of the inter-system detection set and/or an indication of the high-level information of the cell between a particular system is added to the inter-system measurement list.

Step 405 to step 406: The UE performs ANR measurement according to the obtained ANR measurement control information, and reports the ANR measurement result to the RNC through a measurement report. In this step, the reporting method of the measurement result may be: carrying a new message, such as an additional measurement report (Additional Measurement Report), or carrying the report through an existing RRC message. Existing RRC messages include but are not limited to: Initial Direct Transfer (Initial Direct)

Transfer ) Message, Measurement Report, RRC Connection Request message, Uplink Direct Transfer message, Cell Update message, etc. The measurement report includes at least the following: detecting physical layer information of the set cell, and/or high-level information of the specific cell.

The RNC receives the measurement results of the ANR measurements and performs neighbor relationship update and/or handover decisions. FIG. 5 is a schematic flowchart of a second embodiment of implementing automatic neighbor relationship measurement according to the present invention. In the second embodiment, the UE performs ANR measurement in a public connection state of cell_dch, as shown in FIG. 5. Includes the following steps:

Step 500: The UE sends a RRC Connection Request message to the RNC through the CCCH channel.

Step 501: The RNC receives the wireless connection request message, sends an RRC Connection Setup message to the UE, and carries the indication that the RRC state is a dedicated connection state (RRC state=cell_fach) in the RRC control setup message. In this step, according to the prior art, the RNC determines that the terminal enters the public connection state according to a certain internal strategy, such as the load on the common channel is not large.

Step 502 to step 503: The UE switches from the idle state to the public connection state, and sends a radio resource control connection completion message on the FACH channel, and carries an ANR capability indication in the message, and informs the network side such as the RNC whether or not it has the ANR capability. The ANR capability indication can be indicated by the terminal ANR capability support cell shown in Table 1.

Step 504: In this embodiment, it is assumed that the UE switches from the forward access channel state (cell_fach) of the terminal to the paging channel state (cell_pch) of the terminal because there is no service data transmission. This can further save power for the UE.

Step 505: 4: The RNC finds that there may be a possibility of missing the neighboring cell in the vicinity of the UE, and then selects The UE in the dedicated connection state performs the ANR measurement, and then the RNC sends a measurement control message to the UE on the CCCH channel, and carries the ANR measurement control information for the ANR measurement in the measurement control message. .

Step 506 to step 507: The UE performs ANR measurement according to the obtained ANR measurement control information, and reports the ANR measurement result to the RNC through a measurement report.

The RNC receives the measurement results of the ANR measurements and performs neighbor relationship update and/or handover decisions. Industrial applicability

The invention implements the ANR measurement of the dedicated control by using the UE in the public connection state, realizes the automatic neighbor relationship reporting, and, since the ANR measurement is completed in the public connection state of the UE, the air resource is saved, and the use of the UE is improved. Feeling, does not cause business impact on the terminal in a dedicated state.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included. Within the scope of protection of the present invention.

Claims

Claim

A method for realizing automatic neighborhood relationship measurement, comprising:

The method according to claim 1, wherein the UE reports its own automatic neighbor relationship ANR capability through uplink air interface signaling;

The uplink air interface signaling is a wireless connection establishment request message, or a cell update message, or a radio resource control connection completion message.

The method according to claim 2, wherein the reporting has its own automatic neighbor relationship ANR capability: the terminal ANR capability supporting cell indicates whether the UE has an ANR capability.

The method according to any one of claims 1 to 3, wherein the determining, by the network side, that the UE is in a public connection state, the network side receives the wireless connection request message, and determines that the terminal enters the public connection. State; or,

The UE switches from the idle state to the public connection state, and sends a radio resource control connection complete message on the forward access channel FACH channel; and the UE switches from the terminal's forward access channel state cell_fach to the terminal's paging channel state cell_pch .

5. The method according to claim 4, wherein the sending, by the network side, the ANR measurement control information comprises:

6. The method according to claim 5, wherein the ANR measurement control information is: For intra-frequency measurement, adding a measurement indication of the intra-frequency detection set and/or an acquisition indication of high-level information of a specific cell in the intra-frequency measurement list;

For inter-system measurements, an indication of the inter-system detection set and/or an indication of the high-level information of the cell between a particular system is added to the inter-system measurement list.

The method according to claim 4, wherein the reporting the measurement result by the UE to the network side comprises:

The method according to claim 7, wherein when the UE carries the measurement result in the RRC message, the RRC message is:

An initial direct message, or a measurement report, or a wireless network control connection request message, or an uplink direct message, or a cell update message.

The method according to claim 7, wherein the measurement report comprises at least: detecting physical layer information of the set cell, and/or high layer information of the specific cell.

10. A system for implementing automatic neighbor relationship measurement, comprising: a UE and a network side, wherein

The network side is configured to determine that the UE is in a public connection state, and send ANR measurement control information to the UE;

The system according to claim 10, wherein the network side is further configured to perform a neighbor relationship update and/or handover decision according to the received measurement result.

12. System according to claim 10 or 11, characterized in that said network side comprises a radio network controller RNC.