WO2014023254A1 - 切换或承载分离的判决及测量上报方法和设备 - Google Patents
切换或承载分离的判决及测量上报方法和设备 Download PDFInfo
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- WO2014023254A1 WO2014023254A1 PCT/CN2013/081112 CN2013081112W WO2014023254A1 WO 2014023254 A1 WO2014023254 A1 WO 2014023254A1 CN 2013081112 W CN2013081112 W CN 2013081112W WO 2014023254 A1 WO2014023254 A1 WO 2014023254A1
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- 238000000926 separation method Methods 0.000 title claims abstract description 148
- 238000000034 method Methods 0.000 title claims abstract description 122
- 238000005259 measurement Methods 0.000 title claims abstract description 101
- 230000008569 process Effects 0.000 claims abstract description 31
- 230000000977 initiatory effect Effects 0.000 claims description 13
- 230000007774 longterm Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000000691 measurement method Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 6
- 230000006870 function Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Definitions
- MME Mobility Management Entity
- 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:
- 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.
- 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.
- 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.
- 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.
- Local eNB local base station
- Femto home base station
- Pico micro base station
- Relay relay device
- the heterogeneous network deployment scenario including the Local eNB and the Macro eNB is shown in Figure 2.
- the Macro eNB provides macro coverage
- the Local eNB provides hotspot coverage within the macro coverage.
- the switching between the Macro cell and the Local cell may be continuously performed.
- 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.
- RRC radio resource control
- 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.
- NCT New Carrier Type
- SCT Non-standalone NCT
- subsequent protocols may introduce new cell types.
- the idle state UE IDLE UE
- the connected state UE is allowed to switch in the incoming cell.
- 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.
- 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.
- the handover between the Marco eNBs should be performed in time.
- the Marco eNB receives the measurement report of the UE, and cannot accurately determine whether the bearer separation or handover should be initiated.
- 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 comprising:
- the source base station 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 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 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 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.
- the source base station 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.
- 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.
- FIG. 1 is a schematic diagram of an E-UTRAN network architecture in the prior art
- FIG. 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.
- FIG. 5a is a schematic diagram of a bearer separation process according to an embodiment of the present invention.
- 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.
- a method for determining handover or bearer separation 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.
- 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.
- 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:
- the source base station uses the Automatic Neighbour Relation (ANR) function to obtain the neighbor list, and the neighbors in the neighbor list
- ANR Automatic Neighbour Relation
- 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.
- 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.
- the source base station 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.
- OAM maintenance and management
- 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.
- the source base station 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;
- 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.
- 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.
- 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.
- 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.
- 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).
- 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:
- 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.
- the target base station 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. .
- the cells that can work independently may be: Long Term Evolution (LTE) Release 11 compatible cells or standalone NCT cells.
- LTE Long Term Evolution
- 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.
- the Local eNB sends a signal similar to the cell-specific pilot signal (CRS) for measurement, including cell discovery
- CRS cell-specific pilot signal
- 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,
- 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.
- RB radio bearer
- 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.
- RRC connection reconfiguration signaling including the public and private configuration of the Local
- 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.
- MAC media access control
- PDCP Packet Data Aggregation Protocol
- RLC Radio Link Control
- 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.
- 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.
- 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.
- 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.
- 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.
- Embodiment 1 An embodiment in which a bearer separation support capability is exchanged through an inter-base station interface
- 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:
- 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.
- 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.
- 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.
- the eNB1 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;
- 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:
- 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.
- the eNB1 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
- 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.
- 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.
- the eNB1 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 4 Embodiment of whether an NCT is supported by an interface interaction between base stations
- 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.
- 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.
- 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;
- the data transceiver interface is configured to implement data communication between the base station and the terminal and the target base station.
- 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.
- 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:
- 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.
- 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.
- the determining unit 61 is configured to:
- 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.
- 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.
- 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:
- 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 cell broadcast message sent by the base station carries the base station type information or type information of the cell.
- the type of the target base station to which the target cell or the target cell belongs includes:
- 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.
- 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.
- the determining unit 61 is configured to:
- 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.
- the determining unit 61 is further configured to:
- determining whether the target cell is a small area capable of working independently determining whether the target cell is a cell capable of working independently, determining to initiate a handover procedure to the target base station.
- 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.
- the cells that can work independently are: a long term evolution LTE version 11 compatible cell or a standalone NCT cell.
- 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.
- the terminal in this embodiment includes a processor and a data transceiver interface on the hardware, where:
- 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.
- the type information of the neighboring cell or the base station to which the neighboring cell belongs includes:
- 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.
- 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.
- the upper unit 71 is further configured to:
- 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.
- 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.
- the beneficial effects of the present invention include:
- the source base station 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.
- 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 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.
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Abstract
本申请实施例公开了一种切换或承载分离的判决及测量上报方法和设备，涉及无线通信领域，用于解决在异构网络部署场景下源基站如何准确判决向目标基站发起切换流程或承载分离流程的问题。本申请中，源基站在接收到终端上报的切换相关的测量事件后，根据该测量事件确定目标小区；确定该目标小区或该目标小区所归属的目标基站的类型，根据该类型判定是向该目标基站发起切换流程或是承载分离流程，并根据判定结果向该目标基站发起切换流程或承载分离流程。采用本申请解决了在异构网络部署场景下源基站如何准确判决是向目标基站发起切换流程或承载分离流程的问题。
Description
切换或承载分离的判决及测量上报方法和设备 本申请要求在 2012年 8月 9日提交中国专利局、 申请号为 201210282807.X、发明名称为"切换 或承载分离的判决及测量上报方法和设备"的中国专利申请的优先权， 其全部内容通过 I用结 合在本申请中。 技术领域 本发明涉及无线通信领域， 尤其涉及一种切换或承载分离的判决及测量上报方法和设 备。 背景技术 长期演进（Long Term Evolution, LTE ) 系统的网络架构如图 1所示， 移动性管理实体
( Mobility Management Entity , ΜΜΕ ) 与基站 （ e B )之间釆用 S 1 -MME接口相连； eNB 完成接入网功能， 与用户终端 （UE )通过空口通信。 对于每一个附着到网络的 UE, 有一 个 MME为其提供服务， 该 MME称为 UE的服务 MME。
演进的通用移动通信系统 ( Universal Mobile TelecommunicationSystem, UMTS ) 陆地 无线接入网 （ Evolved UMTS Terrestrial Radio Access Network, EUTRAN ) 系统定义的同 / 异频测量事件（Event )如下：
Event A1 : 服务小区信道盾量大于门限（所述服务小区可以是主小区 （ PCell )或者辅 小区 （SCell ) );
该事件主要用于终止异频 /异系统测量。
Event A2: 服务小区信道盾量小于门限（所述服务小区可以是 PCell或者 SCell );
该事件主要用于开启异频 /异系统测量。
Event A3: 邻小区信道盾量优于服务小区信道盾量（服务小区为 PCell, 邻小区可以是 SCell, 还可以是非服务小区 ( non-serving cell ) );
该事件主要用于启动切换。
Event A4: 邻小区信道盾量大于门限。
该事件主要用于系统进行负载均衡的参考。
Event A5: 服务小区信道盾量小于门限 1 , 同时邻小区信道盾量大于门限 2 (服务小区 为 PCell, 邻小区可以是 SCell, 还可以是 non-serving cell );
该事件主要用于切换时无线条件的参考。
Event A6: 邻小区的信道盾量优于服务小区的信道盾量（该测量事件中的服务小区是
Scell, 邻小区是与 SCell同频的邻小区）；
该事件主要只应用于载波聚合情况下的小区管理。
统计表明， 传统的宏基站（Macro eNB )单层覆盖网络已经不能满足人们对数据业务 速率和容量不断增长的需求。 因此，第三代移动通信标准化组织（ 3rd Generation Partnership Project, 3GPP )引入了分层组网的方式来解决该问题， 即通过在热点区域、 家庭室内环境、 办公环境等小覆盖环境布设一些低功率的基站即本地基站 （Local eNB ), 包括家庭基站 ( Femto ) /微基站（Pico ) /中继设备（Relay )等形式， 以获得小区分裂的效果， 使得运营 商能够为用户提供更高数据速率、 更低成本的业务。
包含 Local eNB和 Macro eNB的异构网络部署场景如图 2所示。其中 Macro eNB提供宏覆 盖， Local eNB在宏覆盖范围内提供热点覆盖。
对于图 2所示的网络架构， 如果按照现有机制， UE在 Macro cell覆盖范围内移动时， 可 能不断执行 Macro cell 与 Local cell之间的切换操作。为了避免频繁切换导致数据传输中断， 一种方式就是让 UE可以同时聚合 Local eNB和 Macro eNB的资源， 但 UE的无线资源控制 ( Radio Resource Control, RRC )连接维持在 Marco eNB下， Local eNB资源仅用于数据传 输， 即承载分离。
如果 UE在 Marco eNB覆盖范围内移动， 那么无需切换， 但是一旦 UE移出 Marco cell覆 盖范围， 则需要及时触发 Marco eNB的切换，以避免数据传输产生中断。 Marco eNB进行切 换判决的主要依据是测量事件， 比如 A3事件或者 A5事件。
目前的新小区类型至少包含两种类型： 独立工作的 NCT ( New Carrier Type, 新载波类 型）（standalone NCT )和非独立工作的 NCT ( Non- standalone NCT ), 后续协议还可能引 入新的小区类型， 比如禁止空闲态 UE ( IDLE UE )驻留， 但是允许连接态 UE切换进来的 小区。
对于 Non-standalone NCT的小区， 其既不允许 IDLE UE驻留， 又不允许连接态 UE单独 工作， 但是对于 standalone cell, 其是支持 IDLE UE驻留和连接态 UE单独工作的。 因此切换 时， 如果目标小区是 standalone NCT, 那么源基站可以将 UE直接切换到该目标小区， 但是 如果是 Non-standalone, 则不能直接将 UE切换到该小区。
综上， 对于支持承载分离的 UE而言， 如果在宏基站覆盖范围内移动的 UE进入 Local eNB的覆盖范围， 那么可以考虑启用承载分离， 以尽快将 UE的承载转移到本地节点传输， 以达到节电 /降低千扰的目的。 但是一旦 UE移出宏基站的覆盖范围， 为了保证 UE数据传输 的连续性， 应该及时执行 Marco eNB之间的切换。 但是现有机制中， Marco eNB接收到 UE 的测量上报， 无法准确的判断是应该发起承载分离还是切换。
发明内容 本发明实施例提供一种切换或承载分离的判决及测量上报方法和设备， 用于解决在异 构网络部署场景下源基站如何准确判决向目标基站发起切换流程或承载分离流程的问题。
一种切换或承载分离的判决方法， 该方法包括：
源基站在接收到终端上报的切换相关的测量事件后， 根据该测量事件确定目标小区； 源基站确定所述目标小区或所述目标小区所归属的目标基站的类型， 根据该类型判定 是向该目标基站发起切换流程或是承载分离流程 , 并根据判定结果向该目标基站发起切换 流程或承载分离流程。
一种测量上 ·ί艮方法， 该方法包括：
终端从邻小区下发的广播消息中获取该邻小区或该邻小区所归属的基站的类型信息； 终端向基站发送测量上 ·ί艮结果， 该测量上 ·ί艮结果中携带所述类型信息。
一种基站， 该基站包括：
确定单元， 用于在接收到终端上 4艮的切换相关的测量事件后， 根据该测量事件确定目 标小区；
判定单元， 确定所述目标小区或所述目标小区所归属的目标基站的类型， 根据该类型 判定是向该目标基站发起切换流程或是承载分离流程；
发起单元， 用于根据判定结果向该目标基站发起切换流程或承载分离流程。
一种基站， 该基站包括处理器和数据收发接口， 其中：
所述处理器被配置为用于： 用于在接收到终端上报的切换相关的测量事件后， 根据该 测量事件确定目标小区； 确定所述目标小区或所述目标小区所归属的目标基站的类型， 根 据该类型判定是向该目标基站发起切换流程或是承载分离流程； 根据判定结果向该目标基 站发起切换流程或承载分离流程；
所述数据收发接口， 用于实现基站与终端及目标基站间的数据通信。
一种终端， 该终端包括：
获取单元， 用于从邻小区下发的广播消息中获取该邻小区或该邻小区所归属的基站的 类型信息；
上报单元， 用于向基站发送测量上报结果， 该测量上报结果中携带所述类型信息。 一种终端， 该基站包括处理器和数据收发接口， 其中：
所述处理器被配置为用于： 从邻小区下发的广播消息中获取该邻小区或该邻小区所归 属的基站的类型信息； 向基站发送测量上报结果， 该测量上报结果中携带所述类型信息； 所述数据收发接口， 用于实现终端与服务基站及邻小区基站间的数据通信。
本发明实施例提供的方案中， 源基站在接收到终端上报的切换相关的测量事件后， 根
据该测量事件确定目标小区； 确定该目标小区或该目标小区所归属的目标基站的类型， 根 据该类型判定是向该目标基站发起切换流程或是承载分离流程， 并根据判定结果向该目标 基站发起切换流程或承载分离流程。 可见， 本方案中， 源基站可以根据目标小区或该目标 小区所归属的目标基站的类型判定是向该目标基站发起切换流程或是承载分离流程， 从而 解决了在异构网络部署场景下源基站如何准确判决是向目标基站发起切换流程或承载分 离流程的问题。 附图说明 图 1为现有技术中的 E-UTRAN网络架构示意图；
图 2为现有技术中的异构网络部署场景示意图；
图 3为本发明实施例提供的方法流程示意图；
图 4为本发明实施例提供的另一方法流程示意图；
图 5a为本发明实施例中的承载分离流程示意图；
图 5b为本发明实施例中的 X2接口建立过程示意图；
图 6为本发明实施例提供的基站结构示意图；
图 7为本发明实施例提供的终端结构示意图。 具体实施方式 为了解决在异构网络部署场景下源基站如何准确判决向目标基站发起切换流程或承 载分离流程的问题， 本发明实施例提供一种切换或承载分离的判决方法。
参见图 3 , 本发明实施例提供的切换或承载分离的判决方法， 包括以下步骤： 步骤 30: 源基站在接收到终端上报的切换相关的测量事件后， 根据该测量事件确定目 标小区； 这里， 切换相关的测量事件可以是现有技术中的 A3事件或 A5事件； 当然， 切换相 关的测量事件并不局限于该 A3事件或 A5事件，任何其他定义的与切换相关的测量事件均在 本发明的保护范围内。
步骤 31 : 源基站确定该目标小区或该目标小区所归属的目标基站的类型， 根据该类型 判定是向该目标基站发起切换流程或是承载分离流程， 并根据判定结果向该目标基站发起 切换流程或承载分离流程。
步骤 31中， 源基站确定该目标小区或该目标小区所归属的目标基站的类型， 具体可以 釆用如下方法之一：
方法一， 在源基站接收到终端上报的切换相关的测量事件之前， 源基站利用自动邻区 关系 （ Automatic Neighbour Relation , ANR ) 功能获取邻区列表， 与该邻区列表中的各邻
小区所归属的基站建立基站间接口 （比如 X2接口）， 在基站间接口建立或基站配置更新过 程中， 获得各邻小区或各邻小区所归属的基站的类型信息； 这里， 源基站利用 ANR功能获 取邻区列表， 是指源基站通过其服务的终端的测量上报结果确定该源基站的邻小区， 进而 得到包含各邻小区的邻区列表。
相应的， 步骤 31中， 源基站从获得的类型信息中读取该目标小区或该目标小区所归属 的目标基站的类型信息， 根据读取的类型信息确定该目标小区或该目标小区所归属的目标 基站的类型。
方法二， 在源基站接收到终端上报的切换相关的测量事件之前， 源基站利用 ANR功能 获取邻区列表， 向维护与管理（OAM )实体查询该邻区列表中的各邻小区或各邻小区所归 属的基站的类型信息；
相应的， 步骤 31中， 源基站从查询得到的类型信息中读取该目标小区或该目标小区所 归属的目标基站的类型信息， 根据读取的类型信息确定该目标小区或该目标小区所归属的 目标基站的类型。
方法三， 在源基站接收到终端上报的切换相关的测量事件之前， 源基站接收终端的测 量上报结果， 该测量上报结果中携带邻小区或邻小区所归属的基站的类型信息， 该类型信 息是终端从该邻小区所归属的基站下发的广播消息中获取到的；
相应的， 步骤 31中， 源基站从终端的测量上报结果中读取该目标小区或该目标小区所 归属的目标基站的类型信息， 根据读取的类型信息确定该目标小区或该目标小区所归属的 目标基站的类型。
较佳的， 源基站下发的小区广播消息中携带源基站的类型信息或者该小区的类型信 息， 以使终端能够从小区广播消息中读取到源基站的类型信息或者该小区的类型信息， 并 将源基站的类型信息或者该小区的类型信息携带在测量上报结果中后上报给邻基站， 使得 邻基站在以源基站作为目标基站时， 能够根据源基站的类型信息或者该小区的类型信息判 定是向源基站发起切换流程或是承载分离流程。
当然， 系统中的各基站都需要在下发的小区广播消息中携带该基站的类型信息或者该 小区的类型信息， 以使终端能够从小区广播消息中读取到该基站的类型信息或者该小区的 类型信息， 并将该基站的类型信息或者该小区的类型信息携带在测量上报结果中后上报给 邻基站， 使得邻基站在以该基站作为目标基站时， 能够根据该基站的类型信息或者该小区 的类型信息判定是向该基站发起切换流程或是承载分离流程。
本方法中， 目标小区或目标小区所归属的目标基站的类型可以包括： 目标小区或目标 小区所归属的目标基站是否支持承载分离的能力、 该目标小区是否为 NCT、 该目标小区是 否为其它新的小区类型中的一个或任意组合。
这里， 是否支持承载分离的能力可以包括： 是否支持发起承载分离的能力和 /或是否支
持接受承载分离的能力； 是否为 NCT可以包括： 是否为独立工作的 NCT ( standalone NCT ) 和 /或是否为非独立工作的 NCT ( Non standalone NCT )。
步骤 31中， 根据该类型判定是向该目标基站发起切换流程或是承载分离流程， 具体实 现可以如下：
若根据该类型确定该目标小区或该目标小区所归属的目标基站支持接受承载分离的 能力， 且终端上报的能力指示信息指示该终端支持承载分离的能力， 则判定向该目标基站 发起承载分离流程， 否则， 判定向该目标基站发起切换流程。
较佳的， 在判定向该目标基站发起切换流程之前， 需要进一步确定该目标小区是否是 能够独立工作的小区； 在确定该目标小区是能够独立工作的小区时， 判定向该目标基站发 起切换流程。
这里，能够独立工作的小区可以为：长期演进（LTE )版本 11兼容的小区或者 standalone NCT小区。
步骤 31中， 承载分离的流程可以如图 5a所示：
步骤 1： 在 Macro eNB配置 UE向 Local eNB进行测量上 4艮 ( Local eNB会发送类似小区专 属导频信号（ CRS )的信号用于测量， 包含小区发现）后， UE^ 居配置信息进行测量并将 切换相关的测量事件上报给 Macro e B。
步骤 2: Macro eNB根据测量事件确定目标小区， 该目标小区所属的基站为 Local eNB , Macro eNB根据 Local eNB的类型信息确定 Local eNB支持接受承载分离的能力， 且 UE上报 的能力指示信息指示该终端支持承载分离的能力，
则判定向 Local eNB发起承载分离流程。
步骤 3： Macro eNB向 Local eNB发送承载分离请求。
步骤 4： Local eNB进行接纳判决。
步骤 5: 如果 Local eNB可以接纳承载分离请求， 那么向 Macro eNB返回的承载分离响 应消息中携带接纳的无线承载（ RB )指示以及对应的公共和专用配置； 如果不能接纳承载 分离请求， 则可以在返回的承载分离响应消息中指示拒绝原因。
步骤 6: Macro eNB接收到承载分离响应消息后， 如果根据该承载分离响应消息确定 Local eNB接受承载分离请求， 则向 UE发送 RRC连接重配信令（包含 Local的公共和专用配 置）， 以通知 UE进行 载分离， 并将全部或部分数据无线 7 载 （DRB )从 Macro eNB转移 到 Local eNB。
步骤 7: UE接收到指示承载分离的 RRC连接重配信令后， 建立和 Local eNB对应的媒体 接入控制 （MAC ) 实体， 并更改分组数据聚合协议（PDCP ) /无线链路控制 （RLC ) 实体 和 MAC实体的映射关系。
步骤 8: UE完成 UE和 Local eNB的上 /下行同步。
步骤 9: UE向 Macro e B发送 RRC重配完成消息， Macro e B进行相关 PDCP/RLC等实 体释放操作。
步骤 10: Macro eNB向 Local eNB发送承载分离成功指示， Local eNB和 UE之间可以开 始进行正常数据传输。
参见图 4, 本发明实施例提供一种测量上 ·ί艮方法， 包括以下步骤：
步骤 40: 终端从邻小区下发的广播消息中获取该邻小区或该邻小区所归属的基站的类 型信息；
步骤 41 : 终端向基站发送测量上报结果， 该测量上报结果中携带获取的类型信息。 具体的， 该邻小区或该邻小区所归属的基站的类型信息可以包括： 该邻小区或该邻小 区所归属的基站是否支持承载分离的能力、 该邻小区是否为 NCT、 该邻小区是否为其它新 的小区类型中的一个或任意组合。
这里， 是否支持承载分离的能力可以包括： 是否支持发起承载分离的能力和 /或是否支 持接受承载分离的能力； 是否为 NCT可以包括： 是否为 standalone NCT和 /或是否为 Non standalone NCT。
较佳的， 在终端向基站发送测量上报结果之前， 终端向源基站上报能力指示信息， 该 能力指示信息中包括该终端是否支持承载分离的信息， 以使源基站能够根据能力指示信息 判定是否向该目标基站发起切换流程。
下面结合具体实施例对本发明进行说明：
实施例 1： 通过基站间接口交互承载分离支持能力的实施例；
按照现有协议， 当基站开机后， 该基站可以利用 ANR功能获取邻区列表， 即通过该基 站服务的 UE的测量上报结果确定该基站的邻小区，然后可以和这些邻小区归属的基站建立 基站间接口， 比如 X2接口， 在 X2接口建立或者基站配置更新过程中， 相邻基站之间可以交 互是否支持承载分离的能力。 以 X2接口建立过程为例说明如下：
假设 e Bl开机后， 通过 eNB 1下服务 UE的测量上报结果， 确定 e Bl和 e B2相邻， 那 么 eNBl可以向 e B2发起 X2接口建立过程。设 eNBl是可以接受承载分离但是不支持发起承 载分离的基站， e B2是仅支持发起承载分离但是不接受承载分离的基站， 那么 X2建立过 程如图 5b所示；
图 5b中 eNBl发起的 X2建立请求 （ SETUP REQUEST ) 消息可以在现有的 X2 SETUP REQUEST消息的基础上增加 2bit指示， lbit用于指示 eNBl是否支持发起承载分离， lbit用 于指示 eNBl是否接受承载分离。 同样， e B2回复的 X2建立响应 （ SETUP RESPONSE ) 消息则可以在现有的 X2 SETUP RESPONSE消息的基础之上增加 2bit指示， lbit用于指示 e B2是否支持发起承载分离， lbit用于指示 eNB2是否接受承载分离。
建立 X2接口后， 当 eNBl收到其下 UE上报的 A3或者 A5事件时， 就可以根据目标 cell归
属的目标基站的能力判决是应该发起承载分离还是应该执行切换， 比如如果目标基站不接 受承载分离， 那么只能发起切换。
实施例 2： 通过 0 AM获取承载分离支持能力的实施例；
按照现有协议， 当基站开机后， 该基站可以利用 ANR功能获取邻区列表， 即通过该基 站服务的 UE的测量上报结果确定该基站的邻小区。 一旦确定了邻小区， 那么也就确定了邻 基站， 那么可以向 OAM查询该邻基站是否支持承载分离。 举例如下：
假设 eNBl开机后， 通过 eNBl下服务 UE的测量上报结果， 确定 eNBl和 e B2相邻， 那 么 eNBl可以向 OAM发起请求查询 eNB2的承载分离支持能力， 包括是否支持发起承载分离 和 /或是否支持接受承载分离。 OAM将查询结果通知 e B 1。 e B2可以按照相同方式获取 eNBl的承载分离支持能力信息。
当 eNBl收到 UE上报的 A3或者 A5事件时， 如果目标 cell归属于 eNB2, 那么就可以根据 e B2的承载分离支持能力确定是应该启用承载分离还是应该启用切换流程。
实施例 3： 通过 UE上报获取承载分离支持能力的实施例；
按照现有协议， 当基站开机后， 该基站可以利用 ANR功能获取邻区列表， 即通过该基 站服务的 UE的测量上报结果确定该基站的邻邻小区。 一旦确定了邻小区， 那么也就确定了 邻基站。此外， UE在上报邻小区测量结果的同时还可以上报邻小区是否支持承载分离的能 力信息。 举例如下：
e B2下发的广播消息中可以携带两比特指示信息，分别指示该 eNB是否支持发起承载 分离和是否接受承载分离。 当 eNBl开机后， 通过 eNBl下服务 UE的测量上报结果， 确定其 和 e B2相邻，那么 UE在向 eNBl上报测量结果时，还可以将每个 cell对应的承载分离能力一 起上报给 eNB 1。 eNB 1根据 UE的上报结果可以确定 e B2支持承载分离的能力。
当 eNBl收到 UE上报的 A3或者 A5事件时， 如果目标 cell归属于 eNB2, 那么就可以根据 e B2的承载分离支持能力确定是应该启用承载分离还是应该启用切换流程。
说明： 上述实施例是否支持承载分离能力都是以 2bit为例进行说明的， 如果一个基站 仅能具备发起承载分离或者接受承载分离两者之中的一种， 那么可以考虑用 lbit指示， 比 如取 0 , 则表示支持接受承载分离， 取 1则表示支持发起承载分离。
实施例 4： 通过基站间接口交互是否支持 NCT的实施例；
如果 UE向源 eNB上报 A3、 A4或者 A5事件， 那么源基站需要获知目标小区的类型， 以 确定是否可以向目标小区发起切换， 比如， 如果目标小区是 standalone NCT小区， 那么目 标基站可以在 X2接口建立或者 eNB配置更新过程中显式或者隐式通知源基站该目标小区 的类型， 以便源基站进行切换判决处理。 其中显式通知方式可以是直接通知目标小区是否 是 standalone NCT小区， 隐式通知方式可以通知目标小区的特殊配置， 比如 CRS等配置， 以 使源基站根据特殊配置确定目标小区是否是 standalone NCT小区， 每种特殊配置可以对应
一种小区类型。
参见图 6, 本发明实施例提供一种基站， 该基站包括：
确定单元 60, 用于在接收到终端上 4艮的切换相关的测量事件后， 根据该测量事件确定 目标小区；
判定单元 61 , 用于确定所述目标小区或所述目标小区所归属的目标基站的类型， 根据 该类型判定是向该目标基站发起切换流程或是承载分离流程；
发起单元 62, 用于根据判定结果向该目标基站发起切换流程或承载分离流程。
具体实施时， 基站在硬件上包括处理器和数据收发接口， 其中：
所述处理器被配置为用于： 在接收到终端上报的切换相关的测量事件后， 根据该测量 事件确定目标小区； 确定所述目标小区或所述目标小区所归属的目标基站的类型， 根据该 类型判定是向该目标基站发起切换流程或是承载分离流程； 根据判定结果向该目标基站发 起切换流程或承载分离流程；
所述数据收发接口， 用于实现基站与终端及目标基站间的数据通信。
进一步的， 该基站还包括：
第一获取单元 63 , 用于在接收到终端上报的切换相关的测量事件之前， 利用 ANR功能 获取邻区列表， 与该邻区列表中的各邻小区所归属的基站建立基站间接口， 在基站间接口 建立或基站配置更新过程中， 获得各邻小区或各邻小区所归属的基站的类型信息；
所述判定单元 61用于：
从第一获取单元获得的类型信息中读取所述目标小区或所述目标小区所归属的目标 基站的类型信息， 根据读取的类型信息确定所述目标小区或所述目标小区所归属的目标基 站的类型。
具体实施时， 基站中处理器还被配置为用于： 在接收到终端上报的切换相关的测量事 件之前， 利用 ANR功能获取邻区列表， 与该邻区列表中的各邻小区所归属的基站建立基站 间接口， 在基站间接口建立或基站配置更新过程中， 获得各邻小区或各邻小区所归属的基 站的类型信息， 所述处理器具体用于被配置为用于从获得的类型信息中读取所述目标小区 或所述目标小区所归属的目标基站的类型信息， 根据读取的类型信息确定所述目标小区或 所述目标小区所归属的目标基站的类型。
进一步的， 该基站还包括：
第二获取单元 64, 用于在接收到终端上报的切换相关的测量事件之前， 利用 ANR功能 获取邻区列表，向维护与管理 OAM实体查询该邻区列表中的各邻小区或各邻小区所归属的 基站的类型信息；
所述判定单元 61用于：
从第二获取单元查询得到的类型信息中读取所述目标小区或所述目标小区所归属的
目标基站的类型信息， 根据读取的类型信息确定所述目标小区或所述目标小区所归属的目 标基站的类型。
具体实施时， 基站中处理器还被配置为用于： 在接收到终端上报的切换相关的测量事 件之前，利用 ANR功能获取邻区列表， 向维护与管理 OAM实体查询该邻区列表中的各邻小 区或各邻小区所归属的基站的类型信息， 所述处理器具体用于被配置为用于从查询得到的 类型信息中读取所述目标小区或所述目标小区所归属的目标基站的类型信息， 根据读取的 类型信息确定所述目标小区或所述目标小区所归属的目标基站的类型。
进一步的， 该基站还包括：
第三获取单元 65 , 用于在接收到终端上报的切换相关的测量事件之前， 接收终端的测 量上报结果， 该测量上报结果中携带邻小区或邻小区所归属的基站的类型信息， 该类型信 息是终端从该邻小区所归属的基站下发的广播消息中获取到的；
所述判定单元 61用于：
从终端的测量上报结果中读取所述目标小区或所述目标小区所归属的目标基站的类 型信息， 根据读取的类型信息确定所述目标小区或所述目标小区所归属的目标基站的类 型。
具体实施时， 基站中处理器还被配置为用于： 在接收到终端上报的切换相关的测量事 件之前， 接收终端的测量上报结果， 该测量上报结果中携带邻小区或邻小区所归属的基站 的类型信息， 该类型信息是终端从该邻小区所归属的基站下发的广播消息中获取到的， 所 述处理器具体用于被配置为用于从终端的测量上报结果中读取所述目标小区或所述目标 小区所归属的目标基站的类型信息， 根据读取的类型信息确定所述目标小区或所述目标小 区所归属的目标基站的类型。
进一步的， 该基站下发的小区广播消息中携带该基站类型信息或者该小区的类型信 息。
进一步的， 所述目标小区或所述目标小区所归属的目标基站的类型包括：
所述目标小区或所述目标小区所归属的目标基站是否支持承载分离的能力、 所述目标 小区是否为 NCT、 所述目标小区是否为其它新的小区类型中的一个或任意组合。
进一步的， 所述是否支持承载分离的能力包括： 是否支持发起承载分离的能力和 /或是 否支持接受承载分离的能力；
所述是否为 NCT包括： 是否为 standalone NCT和 /或是否为 Non standalone NCT。
进一步的， 所述判定单元 61用于：
若根据该类型确定所述目标小区或所述目标小区所归属的目标基站支持接受承载分 离的能力， 且终端上报的能力指示信息指示该终端支持承载分离的能力， 则判定向该目标 基站发起承载分离流程 , 否则， 判定向该目标基站发起切换流程。
具体实施时， 基站中处理器具体被配置为用于： 若根据该类型确定所述目标小区或所 述目标小区所归属的目标基站支持接受承载分离的能力， 且终端上报的能力指示信息指示 该终端支持承载分离的能力， 则判定向该目标基站发起承载分离流程， 否则， 判定向该目 标基站发起切换流程。
进一步的， 所述判定单元 61还用于：
在判定向该目标基站发起切换流程之前， 确定所述目标小区是否是能够独立工作的小 区； 在确定所述目标小区是能够独立工作的小区时， 判定向该目标基站发起切换流程。
具体实施时， 基站中处理器具体被配置为用于： 在判定向该目标基站发起切换流程之 前， 确定所述目标小区是否是能够独立工作的小区； 在确定所述目标小区是能够独立工作 的小区时， 判定向该目标基站发起切换流程。
进一步的， 所述能够独立工作的小区为： 长期演进 LTE版本 11兼容的小区或者 standalone NCT小区。
参见图 7 , 本发明实施例提供一种终端， 该终端包括：
获取单元 70 , 用于从邻小区下发的广播消息中获取该邻小区或该邻小区所归属的基站 的类型信息；
上报单元 71 , 用于向基站发送测量上报结果， 该测量上报结果中携带所述类型信息。 具体实施时， 本实施例终端在硬件上包括处理器和数据收发接口， 其中：
所述处理器被配置为用于： 从邻小区下发的广播消息中获取该邻小区或该邻小区所归 属的基站的类型信息； 向基站发送测量上报结果， 该测量上报结果中携带所述类型信息； 所述数据收发接口， 用于实现终端与服务基站及邻小区基站间的数据通信。
进一步的， 该邻小区或该邻小区所归属的基站的类型信息包括：
该邻小区或该邻小区所归属的基站是否支持承载分离的能力、 该邻小区是否为 NCT、 该邻小区是否为其它新的小区类型中的一个或任意组合。
进一步的， 所述是否支持承载分离的能力包括： 是否支持发起承载分离的能力和 /或是 否支持接受承载分离的能力；
所述是否为 NCT包括： 是否为 standalone NCT和 /或是否为 Non standalone NCT。
进一步的， 所述上 ·ί艮单元 71还用于：
在向基站发送测量上报结果之前， 向源基站上报能力指示信息， 该能力指示信息中包 括该终端是否支持承载分离的信息。
具体实施时， 本实施例终端的处理器还被配置为用于在向基站发送测量上报结果之 前，向源基站上报能力指示信息，该能力指示信息中包括该终端是否支持承载分离的信息。
综上， 本发明的有益效果包括：
本发明实施例提供的方案中， 源基站在接收到终端上报的切换相关的测量事件后， 根
据该测量事件确定目标小区； 确定该目标小区或该目标小区所归属的目标基站的类型， 根 据该类型判定是向该目标基站发起切换流程或是承载分离流程， 并根据判定结果向该目标 基站发起切换流程或承载分离流程。 可见， 本方案中， 源基站可以根据目标小区或该目标 小区所归属的目标基站的类型判定是向该目标基站发起切换流程或是承载分离流程， 从而 解决了在异构网络部署场景下源基站如何准确判决向目标基站发起切换流程或承载分离 流程的问题。
本发明是参照根据本发明实施例的方法、 设备（系统）、 和计算机程序产品的流程图 和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 /或方框图中的每一流 程和 /或方框、 以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机 程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器 以产生一个机器， 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用 于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方 式工作的计算机可读存储器中， 使得存储在该计算机可读存储器中的指令产生包括指令装 置的制造品， 该指令装置实现在流程图一个流程或多个流程和 /或方框图一个方框或多个 方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上， 使得在计算机 或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理， 从而在计算机或其他 可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个 方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例， 但本领域内的技术人员一旦得知了基本创造性概 念， 则可对这些实施例作出另外的变更和修改。 所以， 所附权利要求意欲解释为包括优选 实施例以及落入本发明范围的所有变更和修改。
显然， 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和 范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内， 则本发明也意图包含这些改动和变型在内。
Claims
1、 一种切换或承载分离的判决方法， 其特征在于， 该方法包括：
源基站在接收到终端上报的切换相关的测量事件后， 根据该测量事件确定目标小区； 源基站确定所述目标小区或所述目标小区所归属的目标基站的类型， 根据该类型判定 是向该目标基站发起切换流程或是承载分离流程 , 并根据判定结果向该目标基站发起切换 流程或承载分离流程。
2、 如权利要求 1所述的方法， 其特征在于， 在源基站接收到终端上报的切换相关的测 量事件之前， 进一步包括：
源基站利用 ANR功能获取邻区列表， 与该邻区列表中的各邻小区所归属的基站建立基 站间接口， 在基站间接口建立或基站配置更新过程中， 获得各邻小区或各邻小区所归属的 基站的类型信息；
所述源基站确定所述目标小区或所述目标小区所归属的目标基站的类型， 具体包括： 源基站从获得的类型信息中读取所述目标小区或所述目标小区所归属的目标基站的 类型信息， 根据读取的类型信息确定所述目标小区或所述目标小区所归属的目标基站的类 型。
3、 如权利要求 1所述的方法， 其特征在于， 在源基站接收到终端上报的切换相关的测 量事件之前， 进一步包括：
源基站利用 ANR功能获取邻区列表，向维护与管理 OAM实体查询该邻区列表中的各邻 小区或各邻小区所归属的基站的类型信息；
所述源基站确定所述目标小区或所述目标小区所归属的目标基站的类型， 具体包括： 源基站从查询得到的类型信息中读取所述目标小区或所述目标小区所归属的目标基 站的类型信息， 根据读取的类型信息确定所述目标小区或所述目标小区所归属的目标基站 的类型。
4、 如权利要求 1所述的方法， 其特征在于， 在源基站接收到终端上报的切换相关的测 量事件之前， 进一步包括：
源基站接收终端的测量上报结果， 该测量上报结果中携带邻小区或邻小区所归属的基 站的类型信息， 该类型信息是终端从该邻小区所归属的基站下发的广播消息中获取到的； 所述源基站确定所述目标小区或所述目标小区所归属的目标基站的类型， 具体包括： 源基站从终端的测量上报结果中读取所述目标小区或所述目标小区所归属的目标基 站的类型信息， 根据读取的类型信息确定所述目标小区或所述目标小区所归属的目标基站 的类型。
5、 如权利要求 4所述的方法， 其特征在于， 进一步包括：
源基站下发的小区广播消息中携带源基站类型信息或者该小区的类型信息。
6、 如权利要求 1所述的方法， 其特征在于， 所述目标小区或所述目标小区所归属的目 标基站的类型包括：
所述目标小区或所述目标小区所归属的目标基站是否支持承载分离的能力、 所述目标 小区是否为新载波类型 NCT、 所述目标小区是否为其它新的小区类型中的一个或任意组 合。
7、 如权利要求 6所述的方法， 其特征在于， 所述是否支持承载分离的能力包括： 是否 支持发起承载分离的能力和 /或是否支持接受承载分离的能力；
所述是否为 NCT包括： 是否为独立工作的 NCT和 /或是否为非独立工作的 NCT。
8、 如权利要求 1-7中任一所述的方法， 其特征在于， 所述根据该类型判定是向该目标 基站发起切换流程或是承载分离流程 , 具体包括：
若根据该类型确定所述目标小区或所述目标小区所归属的目标基站支持接受承载分 离的能力， 且终端上报的能力指示信息指示该终端支持承载分离的能力， 则判定向该目标 基站发起承载分离流程 , 否则， 判定向该目标基站发起切换流程。
9、 如权利要求 8所述的方法， 其特征在于， 在判定向该目标基站发起切换流程之前， 进一步包括：
确定所述目标小区是否是能够独立工作的小区；
所述判定向该目标基站发起切换流程 , 具体包括：
在确定所述目标小区是能够独立工作的小区时， 判定向该目标基站发起切换流程 。
10、 如权利要求 9所述所述的方法， 其特征在于， 所述能够独立工作的小区为： 长期 演进 LTE版本 11兼容的小区或者独立工作的 NCT小区。
11、 一种测量上 ·ί艮方法， 其特征在于， 该方法包括：
终端从邻小区下发的广播消息中获取该邻小区或该邻小区所归属的基站的类型信息； 终端向基站发送测量上 ·ί艮结果， 该测量上 ·ί艮结果中携带所述类型信息。
12、 如权利要求 11所述的方法， 其特征在于， 该邻小区或该邻小区所归属的基站的类 型信息包括：
该邻小区或该邻小区所归属的基站是否支持承载分离的能力、 该邻小区是否为新载波 类型 NCT、 该邻小区是否为其它新的小区类型中的一个或任意组合。
13、 如权利要求 12所述的方法， 其特征在于， 所述是否支持承载分离的能力包括： 是 否支持发起承载分离的能力和 /或是否支持接受承载分离的能力；
所述是否为 NCT包括： 是否为独立工作的 NCT和 /或是否为非独立工作的 NCT。
14、 如权利要求 11-13中任一所述的方法， 其特征在于， 在终端向基站发送测量上报结 果之前， 进一步包括：
终端向源基站上报能力指示信息， 该能力指示信息中包括该终端是否支持承载分离的 信息。
15、 一种基站， 其特征在于， 该基站包括：
确定单元， 用于在接收到终端上 4艮的切换相关的测量事件后， 根据该测量事件确定目 标小区；
判定单元， 用于确定所述目标小区或所述目标小区所归属的目标基站的类型， 根据该 类型判定是向该目标基站发起切换流程或是承载分离流程；
发起单元， 用于根据判定结果向该目标基站发起切换流程或承载分离流程。
16、 如权利要求 15所述的基站， 其特征在于， 该基站还包括：
第一获取单元， 用于在接收到终端上报的切换相关的测量事件之前， 利用 ANR功能获 取邻区列表， 与该邻区列表中的各邻小区所归属的基站建立基站间接口， 在基站间接口建 立或基站配置更新过程中， 获得各邻小区或各邻小区所归属的基站的类型信息；
所述确定单元用于：
从第一获取单元获得的类型信息中读取所述目标小区或所述目标小区所归属的目标 基站的类型信息， 根据读取的类型信息确定所述目标小区或所述目标小区所归属的目标基 站的类型。
17、 如权利要求 15所述的基站， 其特征在于， 该基站还包括：
第二获取单元， 用于在接收到终端上报的切换相关的测量事件之前， 利用 ANR功能获 取邻区列表，向维护与管理 OAM实体查询该邻区列表中的各邻小区或各邻小区所归属的基 站的类型信息；
所述确定单元用于：
从第二获取单元查询得到的类型信息中读取所述目标小区或所述目标小区所归属的 目标基站的类型信息， 根据读取的类型信息确定所述目标小区或所述目标小区所归属的目 标基站的类型。
18、 如权利要求 15所述的基站， 其特征在于， 该基站还包括：
第三获取单元， 用于在接收到终端上报的切换相关的测量事件之前， 接收终端的测量 上报结果， 该测量上报结果中携带邻小区或邻小区所归属的基站的类型信息， 该类型信息 是终端从该邻小区所归属的基站下发的广播消息中获取到的；
所述确定单元用于：
从终端的测量上报结果中读取所述目标小区或所述目标小区所归属的目标基站的类 型信息， 根据读取的类型信息确定所述目标小区或所述目标小区所归属的目标基站的类 型。
19、 如权利要求 18所述的基站， 其特征在于， 该基站下发的小区广播消息中携带该基
站类型信息或者该小区的类型信息。
20、 如权利要求 15所述的基站， 其特征在于， 所述目标小区或所述目标小区所归属的 目标基站的类型包括：
所述目标小区或所述目标小区所归属的目标基站是否支持承载分离的能力、 所述目标 小区是否为新载波类型 NCT、 所述目标小区是否为其它新的小区类型中的一个或任意组 合。
21、 如权利要求 20所述的基站， 其特征在于， 所述是否支持承载分离的能力包括： 是 否支持发起承载分离的能力和 /或是否支持接受承载分离的能力；
所述是否为 NCT包括： 是否为独立工作的 NCT和 /或是否为非独立工作的 NCT。
22、 如权利要求 15-21中任一所述的基站， 其特征在于， 所述判定单元用于： 若根据该类型确定所述目标小区或所述目标小区所归属的目标基站支持接受承载分 离的能力， 且终端上报的能力指示信息指示该终端支持承载分离的能力， 则判定向该目标 基站发起承载分离流程 , 否则， 判定向该目标基站发起切换流程。
23、 如权利要求 22所述的基站， 其特征在于， 所述判定单元还用于：
在判定向该目标基站发起切换流程之前， 确定所述目标小区是否是能够独立工作的小 区； 在确定所述目标小区是能够独立工作的小区时， 判定向该目标基站发起切换流程 。
24、 如权利要求 23所述所述的基站， 其特征在于， 所述能够独立工作的小区为： 长期 演进 LTE版本 11兼容的小区或者独立工作的 NCT小区。
25、 一种终端， 其特征在于， 该终端包括：
获取单元， 用于从邻小区下发的广播消息中获取该邻小区或该邻小区所归属的基站的 类型信息；
上报单元， 用于向基站发送测量上报结果， 该测量上报结果中携带所述类型信息。
26、 如权利要求 25所述的终端， 其特征在于， 该邻小区或该邻小区所归属的基站的类 型信息包括：
该邻小区或该邻小区所归属的基站是否支持承载分离的能力、 该邻小区是否为新载波 类型 NCT、 该邻小区是否为其它新的小区类型中的一个或任意组合。
27、 如权利要求 26所述的终端， 其特征在于， 所述是否支持承载分离的能力包括： 是 否支持发起承载分离的能力和 /或是否支持接受承载分离的能力；
所述是否为 NCT包括： 是否为独立工作的 NCT和 /或是否为非独立工作的 NCT。
28、 如权利要求 25-27中任一所述的终端， 其特征在于， 所述上 ·ί艮单元还用于： 在向基站发送测量上报结果之前， 向源基站上报能力指示信息， 该能力指示信息中包 括该终端是否支持承载分离的信息。
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| US11252641B2 (en) | 2017-02-02 | 2022-02-15 | Acer Incorporated | Method of system information transmission and acquisition |
| CN107094309B (zh) * | 2017-03-29 | 2020-02-07 | 安科讯(福建)科技有限公司 | 一种配置邻区的方法及系统 |
| EP3731558B1 (en) * | 2018-01-19 | 2022-03-30 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for configuring neighbouring cell, network device and user equipment |
| CN114449682B (zh) * | 2018-09-30 | 2024-10-29 | 中国电信股份有限公司 | 基站间通信方法、基站和通信系统 |
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| US20120069818A1 (en) * | 2009-06-12 | 2012-03-22 | Zte Corporation | Method and Device for Handing Off Between Base Stations |
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| US20120069818A1 (en) * | 2009-06-12 | 2012-03-22 | Zte Corporation | Method and Device for Handing Off Between Base Stations |
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