WO2014023254A1

WO2014023254A1 - Switch or bearer separation judging and measurement report method and device

Info

Publication number: WO2014023254A1
Application number: PCT/CN2013/081112
Authority: WO
Inventors: 赵亚利
Original assignee: 电信科学技术研究院
Priority date: 2012-08-09
Filing date: 2013-08-08
Publication date: 2014-02-13
Also published as: CN103581998B; CN103581998A

Abstract

The present invention relates to the wireless communication field. Disclosed are a switch or bearer separation judging and a measurement report method and device, so as to solve the problem how a source base station correctly judges whether to initiate a switch process or a bearer separation process to a target base station in a heterogeneous network deployment scenario. In this application, After receiving a switch-related measurement event reported by a terminal, a source base station determines a target cell according to the measurement event; determines the target cell or a type of a target base station to which the target cell belongs, judges, according to the type, whether to initiate a switch process or a bearer separation process to the target base station, and initiates the switch process or the bearer separation process to the target base station according to a judging result, thereby solving the problem how the source base station correctly judges whether to initiate a switch process or a bearer separation process to the target base station in a heterogeneous network deployment scenario.

Description

Method and apparatus for decision and measurement reporting of handover or bearer separation This application claims to be submitted to the Chinese Patent Office on August 9, 2012, application number 201210282807.X, and the invention name is "handover and bearer separation decision and measurement reporting method and equipment" The priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference. TECHNICAL FIELD The present invention relates to the field of wireless communications, and in particular, to a decision and measurement reporting method and apparatus for handover or bearer separation. BACKGROUND The network architecture of a Long Term Evolution (LTE) system is shown in Figure 1, and the mobility management entity

(Mobility Management Entity, ΜΜΕ) is connected to the base station (e B) by using an S 1 -MME interface; the eNB completes the access network function and communicates with the user terminal (UE) through the air interface. For each UE attached to the network, there is an MME serving it, and the MME is called the serving MME of the UE.

The evolved Universal Mobile Telecommunication System (UMTS) Evolved UMTS Terrestrial Radio Access Network (EUTRAN) system defines the same/inter-frequency measurement event (Event) as follows:

Event A1: the serving cell channel shield is greater than a threshold (the serving cell may be a primary cell (PCell) or a secondary cell (SCell));

This event is mainly used to terminate the inter-frequency/differential system measurement.

Event A2: The serving cell channel shield is less than a threshold (the serving cell may be a PCell or a SCell);

This event is mainly used to enable inter-frequency/different system measurements.

Event A3: The neighboring cell channel shield is better than the serving cell channel shield (the serving cell is a PCell, and the neighboring cell may be a SCell or a non-serving cell);

This event is mainly used to initiate a switch.

Event A4: The neighboring cell channel shield is greater than the threshold.

This event is mainly used as a reference for system load balancing.

Event A5: The channel Shield of the serving cell is less than the threshold 1 , and the channel Shield of the neighboring cell is greater than the threshold 2 (the serving cell is a PCell, and the neighboring cell may be a SCell or a non-serving cell);

This event is mainly used as a reference for wireless conditions when switching.

Event A6: The channel shield of the neighboring cell is better than the channel shield of the serving cell (the serving cell in the measurement event is Scell, the neighboring cell is a neighboring cell with the same frequency as the SCell);

This event is mainly applied only to cell management in the case of carrier aggregation.

Statistics show that the traditional macro base station (Macro eNB) single-layer overlay network can not meet the growing demand for data service speed and capacity. Therefore, the 3rd Generation Partnership Project (3GPP) introduced a layered networking approach to solve this problem by deploying some low-power in small coverage environments such as hotspots, home indoor environments, and office environments. The base station is a local base station (Local eNB), including a home base station (Femto) / a micro base station (Pico) / a relay device (Relay), etc., to obtain a cell splitting effect, so that the operator can provide a higher data rate for the user. , lower cost business.

The heterogeneous network deployment scenario including the Local eNB and the Macro eNB is shown in Figure 2. The Macro eNB provides macro coverage, and the Local eNB provides hotspot coverage within the macro coverage.

For the network architecture shown in Figure 2, if the UE moves within the coverage of the Macro cell according to the existing mechanism, the switching between the Macro cell and the Local cell may be continuously performed. In order to avoid the interruption of data transmission caused by frequent handover, one way is to enable the UE to simultaneously aggregate the resources of the Local eNB and the Macro eNB, but the radio resource control (RRC) connection of the UE is maintained under the Marco eNB, and the Local eNB resources are only Used for data transmission, ie bearer separation.

If the UE moves within the coverage of the Marco eNB, no handover is required, but once the UE moves out of the Marco cell coverage range, the handover of the Marco eNB needs to be triggered in time to avoid interruption of data transmission. The main basis for the Marco eNB to switch decisions is to measure events, such as A3 events or A5 events.

The current new cell type contains at least two types: NCT (New Carrier Type) (standalone NCT) and Non-standalone NCT (NCT), and subsequent protocols may introduce new cell types. For example, the idle state UE (IDLE UE) is prohibited from camping, but the connected state UE is allowed to switch in the incoming cell.

For a non-standalone NCT cell, it does not allow the IDLE UE to camp and does not allow the connected UE to work alone, but for the standalone cell, it supports the IDLE UE camping and the connected UE to work alone. Therefore, if the target cell is a standalone NCT, the source base station can directly switch the UE to the target cell, but if it is Non-standalone, the UE cannot be directly switched to the cell.

In summary, for a UE that supports bearer separation, if a UE moving within the coverage of the macro base station enters the coverage of the Local eNB, it may be considered to enable bearer separation to transfer the bearer of the UE to the local node as soon as possible to achieve Power saving / reducing the purpose of interference. However, once the UE moves out of the coverage of the macro base station, in order to ensure the continuity of the UE data transmission, the handover between the Marco eNBs should be performed in time. However, in the existing mechanism, the Marco eNB receives the measurement report of the UE, and cannot accurately determine whether the bearer separation or handover should be initiated. SUMMARY OF THE INVENTION The embodiments of the present invention provide a handover and bearer separation decision and measurement reporting method and device, which are used to solve the problem of how a source base station can accurately determine a handover procedure or a bearer separation procedure to a target base station in a heterogeneous network deployment scenario.

A method for determining handover or bearer separation, the method comprising:

After receiving the handover-related measurement event reported by the terminal, the source base station determines the target cell according to the measurement event; the source base station determines the type of the target base station to which the target cell or the target cell belongs, and determines according to the type The target base station initiates a handover procedure or a bearer separation procedure, and initiates a handover procedure or a bearer separation procedure to the target base station according to the determination result.

A method of measuring the method, the method comprising:

The terminal obtains the type information of the neighboring cell or the base station to which the neighboring cell belongs from the broadcast message sent by the neighboring cell; the terminal sends a measurement result to the base station, where the measurement carries the type information. .

A base station, the base station comprising:

a determining unit, configured to determine a target cell according to the measurement event after receiving a measurement event related to the handover on the terminal;

a determining unit, determining a type of the target base station to which the target cell or the target cell belongs, and determining, according to the type, a handover procedure or a bearer separation procedure to the target base station;

The initiating unit is configured to initiate a handover procedure or a bearer separation procedure to the target base station according to the determination result.

A base station includes a processor and a data transceiving interface, wherein:

The processor is configured to: after receiving a handover related measurement event reported by the terminal, determine a target cell according to the measurement event; determine a type of the target base station to which the target cell or the target cell belongs Determining, according to the type, a handover procedure or a bearer separation procedure to the target base station; and initiating a handover procedure or a bearer separation procedure to the target base station according to the determination result;

The data transceiver interface is configured to implement data communication between the base station and the terminal and the target base station.

A terminal, the terminal comprising:

An acquiring unit, configured to acquire, from a broadcast message sent by a neighboring cell, type information of the neighboring cell or a base station to which the neighboring cell belongs;

The reporting unit is configured to send a measurement report result to the base station, where the measurement report result carries the type information. A terminal comprising a processor and a data transceiving interface, wherein:

The processor is configured to: obtain the type information of the neighboring cell or the base station to which the neighboring cell belongs from the broadcast message sent by the neighboring cell; send a measurement report result to the base station, where the measurement report result carries the Type information; the data transceiver interface is configured to implement data communication between the terminal and the serving base station and the neighboring cell base station.

In the solution provided by the embodiment of the present invention, after receiving the measurement event related to the handover reported by the terminal, the source base station Determining a target cell according to the measurement event; determining a type of the target base station to which the target cell or the target cell belongs, determining, according to the type, a handover procedure or a bearer separation procedure to the target base station, and according to the determination result, to the target base station Initiate a handover process or a bearer separation process. It can be seen that, in the solution, the source base station may determine, according to the target cell or the type of the target base station to which the target cell belongs, whether to initiate a handover procedure or a bearer separation procedure to the target base station, thereby solving the source base station in the heterogeneous network deployment scenario. How to accurately determine the problem is to initiate a handover procedure or a bearer separation procedure to the target base station. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic diagram of an E-UTRAN network architecture in the prior art;

2 is a schematic diagram of a heterogeneous network deployment scenario in the prior art;

FIG. 3 is a schematic flowchart of a method according to an embodiment of the present disclosure;

4 is a schematic flowchart of another method according to an embodiment of the present invention;

FIG. 5a is a schematic diagram of a bearer separation process according to an embodiment of the present invention; FIG.

FIG. 5b is a schematic diagram of a process of establishing an X2 interface according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention. The embodiments of the present invention provide a method for determining handover or bearer separation, in order to solve the problem that the source base station can accurately determine the handover procedure or the bearer separation procedure to the target base station in the scenario of the heterogeneous network deployment.

Referring to FIG. 3, a method for determining handover or bearer separation according to an embodiment of the present invention includes the following steps: Step 30: After receiving a handover-related measurement event reported by a terminal, the source base station determines a target cell according to the measurement event; The handover related measurement event may be an A3 event or an A5 event in the prior art; of course, the handover related measurement event is not limited to the A3 event or the A5 event, and any other defined handover related measurement event is in the present invention. Within the scope of protection.

Step 31: The source base station determines the type of the target base station to which the target cell or the target cell belongs, and determines, according to the type, a handover procedure or a bearer separation procedure to the target base station, and initiates a handover procedure according to the determination result to the target base station. Or carry the separation process.

In step 31, the source base station determines the type of the target base station to which the target cell or the target cell belongs, and may specifically use one of the following methods:

In the first method, before the source base station receives the handover related measurement event reported by the terminal, the source base station uses the Automatic Neighbour Relation (ANR) function to obtain the neighbor list, and the neighbors in the neighbor list The base station to which the cell belongs establishes an inter-base station interface (such as an X2 interface), and obtains type information of the base station to which each neighboring cell or each neighboring cell belongs in the process of establishing an inter-base station interface or a base station configuration update; where the source base station utilizes the ANR function. Obtaining the neighboring cell list means that the source base station determines the neighboring cell of the source base station by using the measurement reporting result of the terminal served by the source base station, and further obtains a neighboring cell list including each neighboring cell.

Correspondingly, in step 31, the source base station reads the type information of the target cell or the target base station to which the target cell belongs from the obtained type information, and determines, according to the read type information, the target cell or the target cell belongs to The type of target base station.

In the second method, before the source base station receives the handover-related measurement event reported by the terminal, the source base station uses the ANR function to obtain the neighbor list, and queries the maintenance and management (OAM) entity to query each neighbor cell or neighboring cell in the neighbor list. Type information of the base station to which it belongs;

Correspondingly, in step 31, the source base station reads the type information of the target cell or the target base station to which the target cell belongs from the type information obtained by the query, and determines, according to the read type information, the target cell or the target cell belongs to The type of target base station.

In the third method, before the source base station receives the handover-related measurement event reported by the terminal, the source base station receives the measurement report result of the terminal, where the measurement report result carries the type information of the base station to which the neighboring cell or the neighboring cell belongs, and the type information is Obtaining, by the terminal, a broadcast message sent by the base station to which the neighboring cell belongs;

Correspondingly, in step 31, the source base station reads the type information of the target cell or the target base station to which the target cell belongs from the measurement report result of the terminal, and determines, according to the read type information, the target cell or the target cell belongs to The type of target base station.

Preferably, the cell broadcast message sent by the source base station carries the type information of the source base station or the type information of the cell, so that the terminal can read the type information of the source base station or the type information of the cell from the cell broadcast message. The type information of the source base station or the type information of the cell is carried in the measurement report result and then reported to the neighboring base station, so that the neighbor base station can use the type information of the source base station or the type information of the cell when the source base station is used as the target base station. The determination is to initiate a handover procedure or a bearer separation procedure to the source base station.

Certainly, each base station in the system needs to carry the type information of the base station or the type information of the base station in the sent cell broadcast message, so that the terminal can read the type information of the base station or the cell from the cell broadcast message. Type information, and the type information of the base station or the type information of the cell is carried in the measurement report result and reported to the neighboring base station, so that the neighbor base station can use the base station as the target base station according to the type information of the base station or the cell. The type information is determined to initiate a handover procedure or a bearer separation procedure to the base station.

In the method, the type of the target base station to which the target cell or the target cell belongs may include: whether the target cell to which the target cell or the target cell belongs supports the bearer separation capability, whether the target cell is an NCT, and whether the target cell is another new One or any combination of the cell types.

Here, the ability to support bearer separation may include: Whether to support the ability to initiate bearer separation and/or whether to support The ability to accept bearer separation; whether it is an NCT can include: Whether it is an independent working NCT (standalone NCT) and/or whether it is a non-standalone NCT (Non Standalone NCT).

In step 31, according to the type, the handover process or the bearer separation process is initiated to the target base station, and the specific implementation may be as follows:

If it is determined that the target cell to which the target cell belongs or the target base station to which the target cell belongs is capable of accepting the bearer separation, and the capability indication information reported by the terminal indicates that the terminal supports the bearer separation capability, determining to initiate a bearer separation process to the target base station Otherwise, it is determined that a handover procedure is initiated to the target base station.

Preferably, before determining that the handover procedure is initiated to the target base station, it is required to further determine whether the target cell is a cell that can work independently; when determining that the target cell is a cell capable of working independently, determining to initiate a handover procedure to the target base station. .

Here, the cells that can work independently may be: Long Term Evolution (LTE) Release 11 compatible cells or standalone NCT cells.

In step 31, the process of bearer separation can be as shown in Figure 5a:

Step 1: After the Macro eNB configures the UE to perform measurement on the Local eNB (the Local eNB sends a signal similar to the cell-specific pilot signal (CRS) for measurement, including cell discovery), the UE calculates the configuration information and Report the measurement event related to the switch to Macro e B.

Step 2: The macro eNB determines the target cell according to the measurement event, and the base station to which the target cell belongs is the Local eNB. The Macro eNB determines the ability of the local eNB to support the bearer separation according to the type information of the Local eNB, and the capability indication information reported by the UE indicates the terminal. Support the ability to carry off separation,

Then, it is determined that the bearer separation process is initiated to the Local eNB.

Step 3: The Macro eNB sends a bearer separation request to the Local eNB.

Step 4: The Local eNB makes an admission decision.

Step 5: If the local eNB can accept the bearer separation request, the bearer separation response message returned to the Macro eNB carries the received radio bearer (RB) indication and the corresponding public and private configuration; if the bearer separation request cannot be accepted, The reason for the rejection is indicated in the returned bearer separation response message.

Step 6: After receiving the bearer separation response message, the macro eNB sends the RRC connection reconfiguration signaling (including the public and private configuration of the Local) to the UE to notify the UE if the local eNB accepts the bearer separation request according to the bearer separation response message. Perform carrier separation and transfer all or part of the data radio bearer (DRB) from the Macro eNB to the Local eNB.

Step 7: After receiving the RRC connection reconfiguration signaling indicating that the bearer is separated, the UE establishes a media access control (MAC) entity corresponding to the Local eNB, and changes a Packet Data Aggregation Protocol (PDCP)/Radio Link Control (RLC) entity. The mapping relationship with the MAC entity.

Step 8: The UE completes uplink/downlink synchronization between the UE and the Local eNB. Step 9: The UE sends an RRC reconfiguration complete message to the Macro e B, and the Macro e B performs an entity release operation such as PDCP/RLC.

Step 10: The Macro eNB sends a bearer separation success indication to the Local eNB, and normal data transmission can be started between the Local eNB and the UE.

Referring to FIG. 4, an embodiment of the present invention provides a method for measuring, including the following steps:

Step 40: The terminal acquires type information of the neighboring cell or the base station to which the neighboring cell belongs from the broadcast message sent by the neighboring cell.

Step 41: The terminal sends a measurement report result to the base station, where the measurement report result carries the acquired type information. Specifically, the type information of the neighboring cell or the base station to which the neighboring cell belongs may include: whether the neighboring cell or the base station to which the neighboring cell belongs supports the capability of the bearer separation, whether the neighboring cell is an NCT, and whether the neighboring cell is One or any combination of other new cell types.

Here, the ability to support bearer separation may include: whether the ability to initiate bearer separation and/or the ability to accept bearer separation is supported; whether or not the NCT can include: whether it is a standalone NCT and/or a non standalone NCT.

Preferably, before the terminal sends the measurement report result to the base station, the terminal reports the capability indication information to the source base station, where the capability indication information includes whether the terminal supports the bearer separation information, so that the source base station can determine whether to The target base station initiates a handover procedure.

The present invention will be described below in conjunction with specific embodiments:

Embodiment 1: An embodiment in which a bearer separation support capability is exchanged through an inter-base station interface;

According to the existing protocol, after the base station is powered on, the base station can use the ANR function to obtain the neighbor list, that is, the neighboring cell of the base station is determined by the measurement report result of the UE served by the base station, and then the base station can be established with the base station to which the neighboring cell belongs. An inter-interface, such as an X2 interface, can exchange bearer separation capabilities between neighboring base stations during X2 interface setup or base station configuration update. Take the X2 interface establishment process as an example:

It is assumed that e Bl and e B2 are adjacent to each other through the measurement reporting result of the serving UE in the eNB 1 after the e b is turned on, and the eNB1 can initiate the X2 interface establishment process to the e B2. Let eNB1 be a base station that can accept bearer separation but does not support initiating bearer separation. e B2 is a base station that only supports the separation of the bearer but does not accept the bearer separation. Then, the X2 establishment process is as shown in FIG. 5b.

The SETUP REQUEST message initiated by the eNB1 in Figure 5b may be added with a 2-bit indication based on the existing X2 SETUP REQUEST message. The lbit is used to indicate whether the eNB1 supports the initiation of bearer separation, and the lbit is used to indicate whether the eNB1 accepts the bearer separation. . Similarly, the SETUP RESPONSE message of the e B2 replies can add a 2-bit indication to the existing X2 SETUP RESPONSE message. The lbit is used to indicate whether e B2 supports the initiation of bearer separation, and the lbit is used to indicate whether eNB2 is Accept the separation of the bearers.

After the X2 interface is established, when the eNB1 receives the A3 or A5 event reported by the UE, it can return according to the target cell. The capability decision of the target base station is whether the bearer separation should be initiated or the handover should be performed. For example, if the target base station does not accept bearer separation, then only the handover can be initiated.

Embodiment 2: Obtaining an embodiment of bearer separation support capability by 0 AM;

According to the existing protocol, after the base station is powered on, the base station can use the ANR function to obtain the neighbor list, that is, the neighboring cell of the base station is determined by the measurement report result of the UE served by the base station. Once the neighboring cell is determined, then the neighboring base station is determined, and then the OAM can be queried whether the neighboring base station supports bearer separation. Examples are as follows:

It is assumed that the eNB1 determines that the eNB1 and the eB2 are adjacent to each other after the eNB1 is powered on, and the eNB1 can initiate a request to the OAM to query the bearer separation support capability of the eNB2, including whether to support the initiation of bearer separation and/or whether to support or not. Carrying separation. OAM notifies e B 1 of the result of the query. e B2 can obtain the bearer separation support capability information of the eNB1 in the same manner.

When the eNB1 receives the A3 or A5 event reported by the UE, if the target cell belongs to the eNB2, it can determine whether the bearer separation should be enabled or the handover procedure should be enabled according to the bearer separation support capability of the eB2.

Embodiment 3: Embodiment of acquiring bearer separation support capability by reporting by a UE;

According to the existing protocol, after the base station is powered on, the base station can use the ANR function to obtain the neighbor list, that is, the neighboring cell of the base station is determined by the measurement report result of the UE served by the base station. Once the neighboring cell is determined, the neighboring base station is also determined. In addition, the UE can report whether the neighboring cell supports the bearer separation capability information while reporting the neighbor cell measurement result. Examples are as follows:

The broadcast message sent by the e B2 may carry two-bit indication information, respectively indicating whether the eNB supports the initiation of bearer separation and whether to accept bearer separation. After the eNB1 is powered on, the UE is determined to be adjacent to the e B2 by using the measurement report of the serving UE in the eNB1, and the UE may also report the bearer separation capability of each cell to the eNB 1 when reporting the measurement result to the eNB1. The eNB 1 can determine the capability of e B2 to support bearer separation according to the reported result of the UE.

NOTE: Whether the above-mentioned embodiment supports the bearer separation capability is described by taking 2 bits as an example. If a base station can only have one of the initiator bearer separation or the bearer separation, then the lbit indication can be considered, for example, 0 means support for accepting bearer separation, and 1 means support for initiating bearer separation.

Embodiment 4: Embodiment of whether an NCT is supported by an interface interaction between base stations;

If the UE reports an A3, A4, or A5 event to the source eNB, the source base station needs to know the type of the target cell to determine whether the handover can be initiated to the target cell. For example, if the target cell is a standalone NCT cell, the target base station can be on the X2 interface. The type of the target cell of the source base station is explicitly or implicitly notified during establishment or eNB configuration update, so that the source base station performs handover decision processing. The explicit notification mode may be to directly notify the target cell whether it is a standalone NCT cell, and the implicit notification mode may notify the specific configuration of the target cell, such as a CRS configuration, so that the source base station determines whether the target cell is a standalone NCT cell according to a special configuration. Each special configuration can correspond to A type of cell.

Referring to FIG. 6, an embodiment of the present invention provides a base station, where the base station includes:

The determining unit 60 is configured to determine, after receiving the measurement event related to the handover on the terminal, the target cell according to the measurement event;

The determining unit 61 is configured to determine a type of the target base station to which the target cell or the target cell belongs, and determine, according to the type, a handover process or a bearer separation process to the target base station;

The initiating unit 62 is configured to initiate a handover procedure or a bearer separation procedure to the target base station according to the determination result.

In a specific implementation, the base station includes a processor and a data transceiver interface on the hardware, where:

The processor is configured to: after receiving a handover related measurement event reported by the terminal, determine a target cell according to the measurement event; determine a type of the target base station to which the target cell or the target cell belongs, according to The type determining is to initiate a handover procedure or a bearer separation procedure to the target base station; and initiate a handover procedure or a bearer separation procedure to the target base station according to the determination result;

Further, the base station further includes:

The first obtaining unit 63 is configured to acquire a neighboring cell list by using an ANR function, and establish an inter-base station interface with a base station to which each neighboring cell in the neighboring cell list belongs, before receiving the handover-related measurement event reported by the terminal, where the base station establishes an inter-base station interface. During the inter-interface establishment or the base station configuration update process, obtaining type information of the base station to which each neighboring cell or each neighboring cell belongs;

The determining unit 61 is configured to:

Reading the type information of the target cell or the target base station to which the target cell belongs from the type information obtained by the first acquiring unit, and determining, according to the read type information, the target to which the target cell or the target cell belongs The type of base station.

In a specific implementation, the processor in the base station is further configured to: before receiving the handover related measurement event reported by the terminal, use the ANR function to acquire the neighbor list, and the base station to which each neighboring cell in the neighbor list belongs Establishing an inter-base station interface, and obtaining type information of a base station to which each neighboring cell or each neighboring cell belongs in the process of establishing an inter-base station interface or a base station configuration update, where the processor is specifically configured to be used for obtaining type information The type information of the target base station to which the target cell or the target cell belongs is read, and the type of the target base station to which the target cell or the target cell belongs is determined according to the read type information.

Further, the base station further includes:

The second obtaining unit 64 is configured to acquire a neighboring cell list by using the ANR function, and query the maintenance and management OAM entity for each neighboring cell or neighboring cell in the neighboring cell list, before receiving the handover related measurement event reported by the terminal. Type information of the base station to which it belongs;

The determining unit 61 is configured to:

Reading, from the type information obtained by the second obtaining unit, the target cell or the target cell The type information of the target base station determines the type of the target base station to which the target cell or the target cell belongs according to the read type information.

In a specific implementation, the processor in the base station is further configured to: before receiving the handover related measurement event reported by the terminal, use the ANR function to obtain the neighbor list, and query the maintenance and management OAM entity for each of the neighbor list The type information of the base station to which the neighboring cell or the neighboring cell belongs, the processor is specifically configured to read, by using the type information obtained by the query, the target cell or the target base station to which the target cell belongs Type information, determining, according to the type information read, a type of the target base station to which the target cell or the target cell belongs.

Further, the base station further includes:

The third obtaining unit 65 is configured to: before receiving the measurement event related to the handover reported by the terminal, receive a measurement report result of the terminal, where the measurement report result carries type information of the base station to which the neighboring cell or the neighboring cell belongs, the type information The terminal obtains the broadcast message sent by the base station to which the neighboring cell belongs;

The determining unit 61 is configured to:

Reading the type information of the target base station to which the target cell or the target cell belongs from the measurement report result of the terminal, and determining the type of the target base station to which the target cell or the target cell belongs according to the read type information. .

In a specific implementation, the processor in the base station is further configured to: before receiving the handover-related measurement event reported by the terminal, receive a measurement report result of the terminal, where the measurement report result carries the base station to which the neighboring cell or the neighboring cell belongs The type information is obtained by the terminal from the broadcast message sent by the base station to which the neighboring cell belongs, and the processor is specifically configured to read the result from the measurement report result of the terminal. The type information of the target base station to which the target cell or the target cell belongs, and determining the type of the target base station to which the target cell or the target cell belongs according to the read type information.

Further, the cell broadcast message sent by the base station carries the base station type information or type information of the cell.

Further, the type of the target base station to which the target cell or the target cell belongs includes:

Whether the target cell or the target base station to which the target cell belongs supports the capability of bearer separation, whether the target cell is an NCT, and whether the target cell is one or any combination of other new cell types.

Further, the capability of supporting bearer separation includes: whether the capability of initiating bearer separation is supported and/or whether the capability of accepting bearer separation is supported;

Whether the NCT is included includes: whether it is a standalone NCT and/or whether it is a Non standalone NCT.

Further, the determining unit 61 is configured to:

And determining, according to the type, that the target cell to which the target cell or the target cell belongs is capable of accepting bearer separation, and the capability indication information reported by the terminal indicates that the terminal supports the bearer separation capability, determining to initiate a bearer to the target base station. The separation process, otherwise, determines to initiate a handover procedure to the target base station. In a specific implementation, the processor in the base station is configured to: determine, according to the type, that the target cell or the target base station to which the target cell belongs to support the bearer separation capability, and the capability indication information reported by the terminal indicates the The terminal supports the bearer separation capability, and then determines to initiate a bearer separation procedure to the target base station. Otherwise, it determines to initiate a handover procedure to the target base station.

Further, the determining unit 61 is further configured to:

Before determining that the handover procedure is initiated to the target base station, determining whether the target cell is a small area capable of working independently; determining that the target cell is a cell capable of working independently, determining to initiate a handover procedure to the target base station.

In a specific implementation, the processor in the base station is specifically configured to: determine, before starting the handover procedure to the target base station, whether the target cell is a cell capable of working independently; determining that the target cell is capable of working independently In the case of a cell, it is determined that a handover procedure is initiated to the target base station.

Further, the cells that can work independently are: a long term evolution LTE version 11 compatible cell or a standalone NCT cell.

Referring to FIG. 7, an embodiment of the present invention provides a terminal, where the terminal includes:

The obtaining unit 70 is configured to obtain, by using a broadcast message sent by the neighboring cell, type information of the neighboring cell or a base station to which the neighboring cell belongs;

The reporting unit 71 is configured to send a measurement report result to the base station, where the measurement report carries the type information. In a specific implementation, the terminal in this embodiment includes a processor and a data transceiver interface on the hardware, where:

Further, the type information of the neighboring cell or the base station to which the neighboring cell belongs includes:

Whether the neighboring cell or the base station to which the neighboring cell belongs supports the capability of the bearer separation, whether the neighboring cell is an NCT, and whether the neighboring cell is one or any combination of other new cell types.

Further, the upper unit 71 is further configured to:

Before transmitting the measurement report result to the base station, the capability indication information is reported to the source base station, where the capability indication information includes whether the terminal supports the bearer separation information.

In a specific implementation, the processor of the terminal in this embodiment is further configured to report the capability indication information to the source base station before the measurement report is sent to the base station, where the capability indication information includes information about whether the terminal supports the bearer separation.

In summary, the beneficial effects of the present invention include:

In the solution provided by the embodiment of the present invention, after receiving the measurement event related to the handover reported by the terminal, the source base station Determining a target cell according to the measurement event; determining a type of the target base station to which the target cell or the target cell belongs, determining, according to the type, a handover procedure or a bearer separation procedure to the target base station, and according to the determination result, to the target base station Initiate a handover process or a bearer separation process. It can be seen that, in the solution, the source base station may determine, according to the target cell or the type of the target base station to which the target cell belongs, whether to initiate a handover procedure or a bearer separation procedure to the target base station, thereby solving the source base station in the heterogeneous network deployment scenario. How to accurately determine the problem of initiating a handover procedure or a bearer separation procedure to a target base station.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each process and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although the preferred embodiment of the invention has been described, it will be apparent to those of ordinary skill in the art that <RTIgt; Therefore, the appended claims are intended to be construed as including the preferred embodiments and the modifications

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

1. A decision method for handover or bearer separation, characterized in that the method includes:

After receiving the handover-related measurement event reported by the terminal, the source base station determines the target cell according to the measurement event; the source base station determines the type of the target cell or the target base station to which the target cell belongs, and determines whether to send the target cell to the target cell based on the type. The target base station initiates a handover process or a bearer separation process, and initiates a handover process or a bearer separation process to the target base station based on the determination result.

2. The method according to claim 1, characterized in that, before the source base station receives the handover-related measurement events reported by the terminal, further comprising:

The source base station uses the ANR function to obtain the neighbor cell list, and establishes an inter-base station interface with the base station to which each neighboring cell in the neighbor cell list belongs. During the establishment of the inter-base station interface or the base station configuration update process, it obtains the information of each neighboring cell or each neighboring cell. Type information of the home base station;

The source base station determines the type of the target cell or the target base station to which the target cell belongs, specifically including: the source base station reads the target cell or the target base station to which the target cell belongs from the obtained type information. Type information: determine the type of the target cell or the target base station to which the target cell belongs based on the read type information.

3. The method according to claim 1, characterized in that, before the source base station receives the handover-related measurement events reported by the terminal, further comprising:

The source base station uses the ANR function to obtain the neighbor cell list, and queries the maintenance and management OAM entity for the type information of each neighboring cell in the neighbor cell list or the base station to which each neighboring cell belongs;

The source base station determines the type of the target cell or the target base station to which the target cell belongs, which specifically includes: The source base station reads the target cell or the target base station to which the target cell belongs from the type information obtained from the query. type information, and determine the type of the target cell or the target base station to which the target cell belongs based on the read type information.

4. The method according to claim 1, characterized in that, before the source base station receives the handover-related measurement events reported by the terminal, further comprising:

The source base station receives the measurement report result from the terminal. The measurement report result carries the type information of the neighboring cell or the base station to which the neighboring cell belongs. The type information is obtained by the terminal from the broadcast message issued by the base station to which the neighboring cell belongs. ; The source base station determines the type of the target cell or the target base station to which the target cell belongs, specifically including: The source base station reads the target cell or the target to which the target cell belongs from the measurement reporting result of the terminal. The type information of the base station determines the type of the target cell or the target base station to which the target cell belongs based on the read type information.

5. The method of claim 4, further comprising: The cell broadcast message sent by the source base station carries source base station type information or type information of the cell.

6. The method of claim 1, wherein the type of the target cell or the target base station to which the target cell belongs includes:

Whether the target cell or the target base station to which the target cell belongs supports the capability of bearer separation, whether the target cell is a new carrier type NCT, whether the target cell is one of other new cell types or any combination.

7. The method of claim 6, wherein the ability to support bearer separation includes: whether to support the ability to initiate bearer separation and/or to support the ability to accept bearer separation;

Whether it is an NCT includes: whether it is an NCT that works independently and/or whether it is an NCT that works independently.

8. The method according to any one of claims 1 to 7, wherein the determination based on the type is to initiate a handover process or a bearer separation process to the target base station, specifically including:

If it is determined according to this type that the target cell or the target base station to which the target cell belongs supports the ability to accept bearer separation, and the capability indication information reported by the terminal indicates that the terminal supports the capability of bearer separation, then it is determined to initiate a bearer to the target base station separation process, otherwise, it is determined to initiate a handover process to the target base station.

9. The method according to claim 8, characterized in that, before determining to initiate a handover process to the target base station, further comprising:

Determine whether the target cell is a cell capable of working independently;

The determination is to initiate a handover process to the target base station, which specifically includes:

When it is determined that the target cell is a cell that can work independently, it is determined to initiate a handover process to the target base station.

10. The method of claim 9, wherein the cell capable of working independently is: a Long Term Evolution LTE Release 11 compatible cell or an independently working NCT cell.

11. A measurement method, characterized in that the method includes:

The terminal obtains the type information of the neighboring cell or the base station to which the neighboring cell belongs from the broadcast message sent by the neighboring cell; the terminal sends the measurement result to the base station, and the measurement result carries the type information .

12. The method according to claim 11, characterized in that the type information of the neighboring cell or the base station to which the neighboring cell belongs includes:

Whether the neighboring cell or the base station to which the neighboring cell belongs supports the capability of bearer separation, whether the neighboring cell is a new carrier type NCT, whether the neighboring cell is one of other new cell types or any combination.

13. The method of claim 12, wherein the ability to support bearer separation includes: whether to support the ability to initiate bearer separation and/or to support the ability to accept bearer separation;

14. The method according to any one of claims 11 to 13, characterized in that, before the terminal sends the measurement report result to the base station, it further includes: The terminal reports capability indication information to the source base station. The capability indication information includes information on whether the terminal supports bearer separation.

15. A base station, characterized in that the base station includes:

The determining unit is configured to determine the target cell based on the measurement event after receiving the handover-related measurement event on the terminal;

A determination unit, configured to determine the type of the target cell or the target base station to which the target cell belongs, and determine whether to initiate a handover process or a bearer separation process to the target base station based on the type;

The initiating unit is configured to initiate a handover process or a bearer separation process to the target base station according to the determination result.

16. The base station according to claim 15, characterized in that, the base station further includes:

The first acquisition unit is configured to use the ANR function to obtain the neighbor cell list before receiving the handover-related measurement event reported by the terminal, and establish an inter-base station interface with the base station to which each adjacent cell in the neighbor cell list belongs. During the interface establishment or base station configuration update process, the type information of each neighboring cell or the base station to which each neighboring cell belongs is obtained;

The determination unit is used for:

Read the type information of the target cell or the target base station to which the target cell belongs from the type information obtained by the first acquisition unit, and determine the target cell or the target to which the target cell belongs based on the read type information. Type of base station.

17. The base station according to claim 15, characterized in that, the base station further includes:

The second acquisition unit is configured to use the ANR function to obtain the neighbor cell list before receiving the handover-related measurement event reported by the terminal, and query the maintenance and management OAM entity for each neighbor cell in the neighbor cell list or where each neighbor cell belongs. Type information of the base station;

The determination unit is used for:

Read the type information of the target cell or the target base station to which the target cell belongs from the type information obtained by querying the second acquisition unit, and determine the target cell or the target base station to which the target cell belongs based on the read type information. The type of target base station.

18. The base station according to claim 15, characterized in that, the base station further includes:

The third acquisition unit is configured to receive the measurement report result of the terminal before receiving the handover-related measurement event reported by the terminal. The measurement report result carries type information of the neighboring cell or the base station to which the neighboring cell belongs. The type information is The terminal obtains it from the broadcast message sent by the base station to which the neighboring cell belongs;

The determination unit is used for:

Read the type information of the target cell or the target base station to which the target cell belongs from the measurement reporting result of the terminal, and determine the type of the target cell or the target base station to which the target cell belongs based on the read type information. .

19. The base station according to claim 18, characterized in that the cell broadcast message sent by the base station carries the base station Station type information or type information of the cell.

20. The base station according to claim 15, wherein the type of the target cell or the target base station to which the target cell belongs includes:

21. The base station according to claim 20, wherein the ability to support bearer separation includes: whether to support the ability to initiate bearer separation and/or to support the ability to accept bearer separation;

22. The base station according to any one of claims 15 to 21, characterized in that the determination unit is configured to: if it is determined according to the type that the target cell or the target base station to which the target cell belongs supports accepting bearer separation. capability, and the capability indication information reported by the terminal indicates that the terminal supports bearer separation capability, then it is determined to initiate a bearer separation process to the target base station; otherwise, it is determined to initiate a handover process to the target base station.

23. The base station according to claim 22, characterized in that the determination unit is also used to:

Before determining to initiate a handover process to the target base station, it is determined whether the target cell is a cell that can work independently; when it is determined that the target cell is a cell that can work independently, it is determined to initiate a handover process to the target base station.

24. The base station according to claim 23, wherein the cell capable of working independently is: a Long Term Evolution LTE Release 11 compatible cell or an independently working NCT cell.

25. A terminal, characterized in that the terminal includes:

The acquisition unit is used to obtain the type information of the neighboring cell or the base station to which the neighboring cell belongs from the broadcast message sent by the neighboring cell;

The reporting unit is configured to send measurement reporting results to the base station, where the measurement reporting results carry the type information.

26. The terminal according to claim 25, wherein the type information of the neighboring cell or the base station to which the neighboring cell belongs includes:

27. The terminal according to claim 26, wherein the ability to support bearer separation includes: whether to support the ability to initiate bearer separation and/or whether to support the ability to accept bearer separation;

28. The terminal according to any one of claims 25 to 27, characterized in that the upgrading unit is further configured to: before sending the measurement reporting result to the base station, report capability indication information to the source base station, the capability The indication information includes information on whether the terminal supports bearer separation.