WO2012097597A1

WO2012097597A1 - Method of processing neighboring cell information, method of instructing handover, user equipment and base station

Info

Publication number: WO2012097597A1
Application number: PCT/CN2011/079243
Authority: WO
Inventors: 曲薇嘉; 赵欣
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-01-18
Filing date: 2011-09-01
Publication date: 2012-07-26
Also published as: CN102076012A; CN102076012B

Abstract

A method of processing neighboring cell information comprising: a user equipment (UE) receiving a measurement request comprising a measurement configuration transmitted from a base station; and the UE obtaining and reporting neighboring cell information supporting the service of the UE via measuring the added field information in the configuration. A method of instructing handover comprising: a base station transmitting a measurement request comprising a measurement configuration to a UE, the measurement configuration contains newly added field information; after the base station receives the neighboring cell information supporting the service of the UE obtained according to the field information and reported by the UE, initiating handover process with the UE. Also disclosed are the corresponding UE and base station. The present invention increase handover success rate, avoids handover failure and dropped calls due to cell capacity.

Description

Neighbor information processing method, handover indication method, terminal, and base station

Technical field

The present invention relates to communication technologies, and in particular, to a neighboring area information processing method, a handover indication method, a terminal, and a base station. Background technique

In a mobile communication system, when a terminal performs a business operation, it may move. For example, a user who is making a call in a vehicle may move quickly in a road, a house, etc.; at this time, the user's movement may cause the mobile communication network to perform the mobile communication network. Switching operations, and changing the cell of the service user in time, enables users to obtain continuous, quality-assured services.

During the call, the terminal continuously reports the radio environment parameters of the cell and the neighboring cell base station to the base station of the cell in the cell; the base station determines whether the handover should be performed according to the received mobile user radio environment parameter, when the handover condition is met. The base station sends a handover request to the mobile station. The radio environment parameters reported by the mobile station are measured according to the relevant configuration in the communication information broadcast of the cell in which the cell is located.

In the Long Term Evolution (LTE) / System Architecture Evolution (SAE) system specification, TS 36.331 defines a radio signaling interface between a base station (eNB) and a UE in an LTE network. The following measurement methods and reporting event triggering modes are defined in the neighboring area measurement and measurement event reporting of the UE in the connected state: (UTRA is taken as an example)

MeasObjectUTRA:: = SEQUENCE {

carrierFreq ARFCN-ValueUTRA,

offsetFreq Q-OffsetRangelnterRAT DEFAULT 0,

cellsToRemoveList CelllndexList OPTIONAL, -- Need ON

cellsToAddModList CHOICE {

cellsToAddModListUTRA-FDD CellsToAddModListUTRA-FDD, cellsToAddModListUTRA-TDD CellsToAddModListUTRA-TDD } OPTIONAL, -- Need ON

cellForWhichToReportCGI CHOICE {

utra-FDD PhysCellldUTRA-FDD,

utra-TDD PhysCellldUTRA-TDD

} OPTIONAL, -- Need ON

[[csg-allowedReportingCells-v930 CSG-AllowedReportingCells-r9

OPTIONAL -- Need ON

]]

}

CellsToAddModListUTRA-FDD:: = SEQUENCE (SIZE (L.maxCellMeas)) OF CellsToAddModUTRA-FDD

CellsToAddModUTRA-FDD: := SEQUENCE {

Celllndex INTEGER (1..maxCellMeas),

physCellld PhysCellldUTRA-FDD

CellsToAddModListUTRA-TDD:: = SEQUENCE (SIZE (L.maxCellMeas))

OF CellsToAddModUTRA-TDD

CellsToAddModUTRA-TDD ::= SEQUENCE {

Celllndex INTEGER (1..maxCellMeas),

physCellld PhysCellldUTRA-TDD CSG-AllowedReportingCells-r9 ::= SEQUENCE {

physCellIdRangeUTRA-FDDList-r9 PhysCellIdRangeUTRA-FDDList-r9 OPTIONAL- Need OR

The terminal (UE) periodically measures related neighboring areas and service areas according to the information configured in the system information, and reports the measurement report when the measurement threshold is reached or the periodic measurement timer expires. The contents of the measurement report are as follows (take UTRAN as an example)

MeasResultListUTRA:: = SEQUENCE (SIZE (L.maxCellReport)) OF MeasResultUTRA

MeasResultUTRA ::= SEQUENCE {

physCellld CHOICE {

Fdd PhysCellldUTRA-FDD,

Tdd PhysCellldUTRA-TDD

cgi-Info SEQUENCE {

cellGloballd CellGloballdUTRA,

locationAreaCode BIT STRING (SIZE (16)) OPTIONAL,

routingAreaCode BIT STRING (SIZE (8)) OPTIONAL,

plmn-IdentityList PLMN-IdentityList2 OPTIONAL

} OPTIONAL,

measResult SEQUENCE {

utra-RSCP INTEGER (-5..91) OPTIONAL,

utra-EcNO INTEGER (0..49) OPTIONAL, [[additionalSI-Info-r9 AdditionalSI-Info-r9 OPTIONAL ]]

The eNB will decide whether to trigger the handover procedure according to the measurement report. During the handover process, if the target cell resources are insufficient, a handover failure will occur. The handover fails. In the scenario where the original serving cell cannot recover the radio resources or the radio link status of the original serving cell continues to deteriorate (for example, the user has been moving over the coverage of the original cell), the user generally does not get the second handover opportunity. Therefore, the user service interruption or dropped calls will affect the network's key evaluation indicators (KPIs) and user perceptions. Summary of the invention

In order to solve the above technical problem, the present invention provides a neighboring area information processing method, a handover indication method, a terminal, and a base station, so as to improve handover success rate and avoid handover failure and dropped calls caused by cell capability problems.

The present invention provides a neighboring area information processing method, the method comprising:

The terminal (UE) receives a measurement request sent by the base station and includes a measurement configuration;

The UE obtains and reports the neighbor information supporting the service by adding the field information added in the configuration.

Preferably, the foregoing neighboring area information processing method may have the following features:

The field information indicates at least the service type and bandwidth information supported by the neighboring cell where the UE is located. Preferably, the foregoing neighboring area information processing method may further have the following features:

The UE obtains the neighboring area information supporting the service by using the newly added field information in the configuration, including:

The UE obtains the service type and bandwidth information supported by the neighboring cell of the UE by using the field information; the UE learns the service supported by the UE;

The service type and bandwidth information supported by the UE according to the service supported by the UE and the neighboring area where the UE is located Information, determine the neighborhood information that supports its own business.

The invention also provides a terminal, the terminal comprising:

The receiving module is configured to: receive a measurement request that is sent by the base station and includes a measurement configuration; and the processing module is configured to: obtain and report the neighboring area information that supports the service by using the newly added field information in the measurement configuration.

Preferably, the terminal may have the following characteristics:

The field information indicates at least the service type and bandwidth information supported by the neighboring cell where the UE is located. Preferably, the above terminal may also have the following features:

The processing module includes an obtaining unit, a learning unit, and a determining unit:

The obtaining unit is configured to: obtain, by using the field information, a service type and bandwidth information supported by a neighboring area where the UE is located;

The learning unit is set to: learn the business that it supports;

The determining unit is configured to: determine the neighboring area information supporting the service according to the service supported by the service and the service type and bandwidth information supported by the neighboring area of the UE.

The neighboring area information processing method and the terminal can determine the neighboring area that can be used by the current service by measuring the field information added in the configuration, so that only the neighboring area information capable of carrying the current service is reported when reporting, thereby improving the success of the handover. Rate, avoiding handover failures and dropped calls due to cell capacity issues.

The invention also provides a handover indication method, the method comprising:

The base station sends a measurement request including a measurement configuration to the terminal (UE), where the measurement configuration adds field information; the base station receives the neighboring area information that the UE acquires and reports according to the field information, and supports the UE service. Afterwards, a handover procedure is initiated to the UE.

Preferably, the above switching indication method may have the following characteristics:

The field information indicates at least the service type and bandwidth information supported by the neighboring cell where the UE is located. The invention also provides a base station, the base station comprising:

a sending module, configured to: send a measurement request including a measurement configuration to a terminal (UE), where field information is newly added; And a handover module, configured to: after receiving the neighboring cell information that is acquired and reported by the UE according to the field information and supporting the UE service, initiate a handover procedure to the UE.

Preferably, the foregoing base station has the following features:

The field information indicates at least the service type and bandwidth information supported by the neighboring cell where the UE is located. The foregoing handover indication method and the base station perform handover according to the obtained neighboring cell information supporting the terminal service, thereby improving the success rate of the handover, and avoiding handover failure and dropped call due to the cell capability problem. BRIEF abstract

1 is a flowchart of an embodiment of a neighboring area information processing method according to the present invention;

2 is a flowchart of an embodiment of a handover indication method according to the present invention;

3 is a schematic structural diagram of a terminal according to the present invention;

4 is a schematic structural diagram of a base station according to the present invention. Preferred embodiment of the invention

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

FIG. 1 is a flowchart of an embodiment of a neighboring area information processing method according to the present invention, where the method includes:

Step 101: The UE receives a measurement request that is sent by the base station and includes a measurement configuration.

Step 102: The UE obtains and reports the neighboring area information supporting the service by using the newly added field information in the measurement configuration.

The added field information is used to indicate the service type and bandwidth information supported by the neighboring area of the UE. The added field information may be used to indicate the service type and bandwidth information supported by the neighboring area of the UE. , you can also add other indicators based on this.

The step 102 may include: the foregoing UE obtains the service type and bandwidth information supported by the neighboring area of the UE by using the field information; the UE learns the service supported by the UE; and the service supported by the UE according to the service supported by the UE and the neighboring area where the UE is located. Type and bandwidth information, determine the neighbor information that supports its own business. The neighboring area information processing method, by adding the field information in the measurement configuration, enables the UE to autonomously determine the neighboring area that can be used by the current service, so that only the neighboring area information capable of carrying the current service is reported when reporting, and the handover is further improved. The success rate avoids handover failures and dropped calls due to cell capacity issues.

As shown in FIG. 2, it is a flowchart of an embodiment of a handover indication method according to the present invention. The method includes: Step 201: A base station sends a measurement request including a measurement configuration to a UE, where field information is newly added in the measurement configuration.

The field information indicates at least the service type and bandwidth information supported by the neighboring area of the UE. The purpose of adding the field information is: to enable the UE to obtain and report the neighboring area information of the service according to the field information, thereby improving the success of the handover. Rate

Step 202: After receiving the neighboring area information that is supported by the UE and supporting the UE service, the foregoing base station initiates a handover procedure to the UE.

The process of the base station initiating a handover to the UE is the same as that in the prior art, and is not described in detail herein. The foregoing handover indication method performs handover according to the obtained neighboring cell information of the supported terminal service, improves the success rate of the handover, and avoids handover failure and dropped call due to the cell capability problem.

Application example:

In the MeasObject of each access network, an indication field of a QoS Class Identifier (QCI) capability and a maximum bandwidth supported by the cell is added, where the QCI indicates a service type supported by the cell;

SupportService:: = SEQUENCE {

supportQCI ENUMERATED {

QCI1, QCI2, QCI3, QCI4, QCI5, QCI6, QCI7, QCI8,

QCI9}

maxBandwidthINTEGER(0..1000000)

}

Among them, the masBandWidth unit is kbps.

In this example, the eNB delivers a measurement request including a measurement configuration of three cells, where: Area A supports QCI2 and 50 kbps services; Cell B supports QCI6 and 3000 kbps services; Cell C supports QCI9 and 20000 kbps services.

The UE performs the service (such as voice or online game). If the service corresponds to QCI4 and the required bandwidth is 1000 kbps, the UE only reports the neighboring cell that can support the required service, that is, only the cell B and the cell C. Measurement report.

After receiving the measurement result of the cell B and the cell C, the eNB applies for the radio resource to the cell B or the cell C if the handover threshold is reached, and the required service QoS is (QCI4 1000 kbps); and after successfully obtaining the radio resource configuration, Initiating a handover indication to the terminal.

In this example, the UE only reports the neighboring cell information that can support the service required by the UE, thereby improving the success rate of the handover and avoiding handover failure and dropped calls caused by the cell capability problem.

As shown in FIG. 3, it is a schematic structural diagram of a terminal according to the present invention. The terminal includes a receiving module 31 and a processing module 32. The receiving module is configured to receive a measurement request that is sent by a base station and includes a measurement configuration. The newly added field information in the configuration obtains and reports the neighboring area information that supports its own service.

The foregoing field information indicates at least the service type and bandwidth information supported by the neighboring cell in the UE.

Further, the processing module may include an obtaining unit, a learning unit, and a determining unit, where: the obtaining unit is configured to obtain the service type and bandwidth information supported by the neighboring cell where the UE is located by using the foregoing field information; and the learning unit is configured to learn the service supported by the UE; The determining unit is configured to determine the neighboring area information supporting the service according to the service type and bandwidth information supported by the service supported by the UE and the neighboring area where the UE is located.

The terminal only reports the neighboring area information that can support the services required by the terminal. The implementation process can be seen in Figure 1 and will not be described here.

The terminal, by adding the field information in the measurement configuration, enables the user to determine the neighboring area that can be used by the current service, so that only the neighboring area information capable of carrying the current service is reported when reporting, thereby improving the success rate of the handover and avoiding Switching failures and dropped calls due to cell capacity issues.

As shown in FIG. 4, it is a schematic structural diagram of a base station according to the present invention. The base station includes a sending module 41 and a switching module 42. The sending module is configured to send a measurement request including a measurement configuration to a terminal (UE). The field measurement information is added to the measurement configuration. The handover module is configured to receive the neighboring cell information that is obtained by the UE according to the field information and that supports the foregoing UE service, and then initiate a handover process to the UE.

The process of the base station performing the handover according to the neighboring area information that can be supported by the terminal to support the terminal service can be seen in FIG. 2, and details are not described herein again.

The base station performs handover according to the obtained neighboring cell information supporting the terminal service, improves the handover success rate, and avoids handover failure and dropped calls due to the cell capability problem.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be accomplished by a program that instructs the associated hardware to be stored in a computer readable storage medium, such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.

The above embodiments are only intended to illustrate the technical solutions of the present invention and are not to be construed as limiting the invention. It should be understood by those skilled in the art that the present invention may be modified or equivalently substituted without departing from the spirit and scope of the invention.

Industrial applicability

The neighboring area information processing method and the terminal in the embodiment of the present invention can determine the neighboring area that can be used by the current service by measuring the field information added in the configuration, so that only the neighboring area information capable of carrying the current service is reported when the report is reported; The success rate of the handover avoids handover failures and dropped calls due to cell capability problems. The handover indication method and the base station of the embodiment of the present invention perform handover according to the obtained neighboring cell information of the supported terminal service, which improves the success rate of the handover, and avoids handover failure and dropped call due to the cell capability problem.

Claims

Claim

A neighboring area information processing method, the method comprising:

2. The neighboring area information processing method according to claim 1, wherein

The field information indicates at least the service type and bandwidth information supported by the neighboring cell where the UE is located.

The neighboring area information processing method according to claim 1 or 2, wherein

The UE obtains the service type and bandwidth information supported by the neighboring cell where the UE is located by using the field information;

The UE is informed of the services it supports;

The UE determines the neighboring area information supporting the service according to the service supported by the UE and the service type and bandwidth information supported by the neighboring area of the UE.

4. A handover indication method, the method comprising:

The base station sends a measurement request including a measurement configuration to the terminal (UE), and field information is added to the measurement configuration;

The base station, after receiving the neighboring cell information that the UE obtains and reports according to the field information and supports the UE service, initiates a handover procedure to the UE.

5. The handover indication method according to claim 4, wherein

6. A terminal, the terminal comprising:

a receiving module, configured to: receive a measurement request sent by the base station and include a measurement configuration; The processing module is configured to: obtain and report the neighboring area information supporting the service by using the newly added field information in the measurement configuration.

7. The terminal according to claim 6, wherein

8. The terminal according to claim 6 or 7, wherein

The obtaining unit is configured to: obtain, by using the field information, a service type and bandwidth information supported by a neighboring cell where the UE is located;

The learning unit is configured to: learn the services that it supports;

The determining unit is configured to: determine the neighboring area information supporting the service according to the service supported by the UE and the service type and bandwidth information supported by the neighboring cell of the UE.

9. A base station, the base station comprising:

a sending module, configured to: send a measurement request including a measurement configuration to a terminal (UE), where field information is added in the measurement configuration;

And a switching module, configured to: after receiving the neighboring area information of the UE service that is acquired and reported by the UE according to the field information, initiate a handover procedure to the UE.

10. The base station according to claim 9, wherein