WO2018192356A1

WO2018192356A1 - Method and apparatus for configuring cell switching, and base station

Info

Publication number: WO2018192356A1
Application number: PCT/CN2018/081565
Authority: WO
Inventors: 路杨; 周明宇
Original assignee: 北京佰才邦技术有限公司
Priority date: 2017-04-21
Filing date: 2018-04-02
Publication date: 2018-10-25
Also published as: CN108738081B; CN108738081A

Abstract

Provided are a method and apparatus for configuring cell switching, and a base station. The method for configuring cell switching at a source base station side comprises: a source base station sending a piece of instruction information to a candidate base station, wherein the instruction information is used to instruct the candidate base station to perform, in candidate cells, radio link control RRC configuration on a UE or instruct the candidate base station not to perform RRC configuration on the UE, and the candidate cells are: all cells having a UE context or some of the cells having a UE context in cells of the candidate base station; and sending switching information to the UE according to an operation executed by the candidate base station according to the instruction information, wherein the switching information is used to enable the UE to perform cell switching according to the switching information.

Description

Cell switching configuration method, device and base station

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201710267740.5, filed on Jan. 21,,,,,,,

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, and a base station for configuring cell handover.

Background technique

MulteFire is a wireless access technology that extends LTE to unlicensed bands, where unlicensed band carriers can be serviced independently without the aid of licensed band carriers. In order to interfere with other unlicensed band devices (such as WiFi devices) in an unlicensed band channel and to avoid interference between unlicensed band devices, the MF physical layer introduces a Listening Before Talk (WiFi)-based carrier sensing technology. LBT) mechanism. When the base station or terminal monitors that the unlicensed band channel is occupied, that is, when the LBT fails, the signal is stopped, and when the channel is idle, that is, the LBT is successful, the signal is sent.

In order to improve the downlink common control signal transmission efficiency of the base station under the LBT mechanism, MulteFire introduces a Discovery Reference Signal (DRS), which contains the main downlink common control signals, including system broadcast and primary synchronization signal (Primary Sync Signal, PSS), Secondary Synchronization Signal (SSS), Enhanced Primary Sync Signal (ePSS), Enhanced Secondary Sync Signal (eSSS), Cell Reference Signal (CRS) , Master Information Block (MIB) and Enhanced System Information Block (MB-MF). The DRS occupies 12 or 14 symbols (Symbols) in one downlink subframe. The terminal may receive the DRS in the Discovery Signals Measurement Timing Configuration (DMTC) window for downlink synchronization, receiving the MIB, and the SIB-MF. The MulteFire cell transmits the CRS only in a DRS subframe or other subframes that are transmitted by a Physical Downlink Shared Channel (PDSCH). Therefore, the terminal can perform channel measurement on the MulteFire serving cell or the MulteFire neighboring cell only in the DMTC window for cell selection, cell reselection or handover.

In addition, when the channel measurement result of the terminal located in the Multefire cell satisfies the handover condition, if the channel is occupied according to the LBT mechanism, the measurement report cannot be sent. Similarly, after receiving the measurement report of the terminal, the Multefire cell receives the measurement report according to the LBT mechanism. When the channel is occupied, it will not be able to send a switching command, resulting in excessive switching delay. Therefore, in the Multefire system, a terminal automatic handover is supported. When the terminal detects that the channel quality of the current access cell and the neighboring cell meets the handover condition, the terminal does not need to wait for the handover command of the current access cell to automatically initiate a random access connection to the target cell. When the terminal detects that the channel quality of the current access cell and the neighboring cell meets the handover condition, the terminal does not send a measurement report to the current cell and waits for the handover command of the current cell to reduce the handover delay.

However, although the above automatic handover method reduces the waiting time, in the handover process of the terminal, since the terminal still needs to perform some handover preparation work to perform cell handover, the handover time domain is still long.

In addition, in order to further reduce the handover delay, the Multefire system also supports another type of automatic handover of the terminal, that is, when the terminal detects that the signal quality of the automatically switched measurement object satisfies the measurement report condition of the automatic handover, the measurement report is sent to the base station and the automatic startup is started. After the handover timer is received, the base station initiates a traditional handover preparation to the target cell and sends a handover command to the terminal. If the terminal receives the handover command sent by the base station before the automatic handover timer expires, the terminal switches to the target cell indicated in the handover command according to the handover command; otherwise, if the handover command is not received after the handover timer expires, the terminal starts to automatically Switch.

It can be seen from the above that, according to the automatic handover scheme in the related art, the access base station of the terminal can initiate the automatic handover preparation before the terminal performs the cell handover. However, in the automatic handover preparation in the related art, the source base station indicates that the candidate base station performs the RRC configuration. The configuration mode is not flexible enough, so that the system resource utilization is not low, and the cell handover delay is still long.

Summary of the invention

An embodiment of the present disclosure provides a method, an apparatus, and a base station for configuring a cell handover, to solve the problem that the RRC configuration mode is inflexible during the cell handover preparation process in the related art, so that the system resource utilization is low, and the cell handover delay is still long. The problem.

An embodiment of the present disclosure provides a method for configuring cell handover, including:

The source base station sends an indication information to the candidate base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or indicates that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

And performing, according to the operation performed by the candidate base station according to the indication information, handover information, where the handover information is used to enable the UE to perform cell handover according to the handover information.

An embodiment of the present disclosure further provides a configuration method for cell handover, including:

The candidate base station receives an indication information sent by the source base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or indicates that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

Performing a corresponding operation according to the indication information, so that the source base station sends handover information to the UE according to the corresponding operation performed by the candidate base station, where the handover information is used to enable the UE to perform cell handover according to the handover information.

An embodiment of the present disclosure further provides a configuration apparatus for cell handover, including:

The indication sending module is configured to control the source base station to send an indication information to the candidate base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or indicates that the candidate base station does not perform RRC configuration on the UE. The candidate cell is: all cells in the cell of the candidate base station having a UE context or a cell having a UE context;

The feedback module is configured to send, according to the operation performed by the candidate base station according to the indication information, handover information, where the handover information is used to enable the UE to perform cell handover according to the handover information.

The indication receiving module is configured to control, by the candidate base station, an indication information sent by the source base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE. The candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

a configuration module, configured to perform a corresponding operation according to the indication information, so that the source base station sends handover information to the UE according to the corresponding operation performed by the candidate base station, where the handover information is used to enable the UE to perform a cell according to the handover information. Switch.

An embodiment of the present disclosure further provides a base station, including:

The transmitter is configured to: send an indication information to the candidate base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE. The candidate cell is: all cells in the cell of the candidate base station having a UE context or a cell having a UE context;

And the processor is configured to send, to the UE, handover information according to the operation performed by the candidate base station according to the indication information, where the handover information is used to enable the UE to perform cell handover according to the handover information.

The receiver is configured to: receive an indication information sent by the source base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, The candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

The processor is connected to the receiver, and is configured to perform a corresponding operation according to the indication information, so that the source base station sends handover information to the UE according to a corresponding operation performed by the candidate base station, where the handover information is used to enable the UE Performing cell handover according to the handover information.

The beneficial effects of the embodiments of the present disclosure are:

In an embodiment of the present disclosure, the source base station may indicate that the candidate base station performs RRC configuration for all cells having a UE context or a part of the UE having a UE context in its cell, or does not perform RRC configuration on the UE, and according to the foregoing operations performed by the candidate base station, The handover information is fed back to the UE, so that the UE can perform cell handover according to the handover information, so that the UE has a handover basis when the cell handover needs to be performed, thereby improving the handover speed. The source base station may perform RRC configuration on the UE or not to perform RRC configuration on the UE, or the candidate base station may perform different RRC on the UE according to the resource condition of each cell. The RRC configuration implements a flexible configuration mode, which can fully utilize system resources and reserve resources for the UE to perform cell handover, thereby reducing handover delay.

DRAWINGS

1 is a flowchart showing a method of configuring a cell handover according to a first embodiment of the present disclosure;

2 is a flowchart showing a method of configuring cell handover according to a second embodiment of the present disclosure;

FIG. 3 is a flowchart showing a method of configuring cell handover according to a third embodiment of the present disclosure;

4 is a flowchart showing a method of configuring cell handover according to a fourth embodiment of the present disclosure;

FIG. 5 is a flowchart showing a method of configuring cell handover according to a fifth embodiment of the present disclosure;

6 is a flowchart showing a method of configuring cell handover according to a sixth embodiment of the present disclosure;

FIG. 7 is a flowchart showing a method of configuring cell handover according to a seventh embodiment of the present disclosure;

8 is a flowchart showing a method of configuring cell handover according to an eighth embodiment of the present disclosure;

FIG. 9 is a flowchart showing a method of configuring cell handover according to a ninth embodiment of the present disclosure;

FIG. 10 is a flowchart showing a method of configuring cell handover according to a tenth embodiment of the present disclosure;

11 is a flowchart showing a method of configuring cell handover according to an eleventh embodiment of the present disclosure;

FIG. 12 is a flowchart showing a method of configuring cell handover according to a twelfth embodiment of the present disclosure;

FIG. 13 is a block diagram showing the configuration of a cell handover configuration apparatus according to a thirteenth embodiment of the present disclosure;

FIG. 14 is a block diagram showing the configuration of a cell handover configuration apparatus according to a fourteenth embodiment of the present disclosure;

Figure 15 is a block diagram showing the structure of a base station according to a fifteenth embodiment of the present disclosure;

Figure 16 is a block diagram showing the structure of a base station according to a sixteenth embodiment of the present disclosure;

FIG. 17 is a flowchart showing a specific real-time manner of a method for configuring a cell handover by a UE, a source base station, and a candidate base station in the present disclosure;

FIG. 18 is a second flowchart of a specific real-time mode when the UE, the source base station, and the candidate base station perform the cell handover configuration method in the present disclosure;

FIG. 19 is a third flowchart of a specific real-time mode when the UE, the source base station, and the candidate base station perform the cell handover configuration method in the present disclosure;

20 is a fourth flowchart of a specific real-time mode when the UE, the source base station, and the candidate base station perform the cell handover configuration method in the present disclosure;

FIG. 21 is a fifth flowchart of a specific real-time mode when the UE, the source base station, and the candidate base station perform the cell handover configuration method in the present disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present disclosure. It is obvious that the described embodiments are a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.

The present disclosure provides a method for configuring cell handover in the following embodiments, in which the RRC configuration mode is inflexible, the system resource utilization is low, and the cell handover delay is still long. And the device and the base station, by the source base station, instructing the candidate base station to perform RRC configuration on all cells having a UE context or a cell having a UE context in its cell, or not performing RRC configuration on the UE, and according to the foregoing operations performed by the candidate base station, to the UE The handover information is fed back, so that the UE can perform cell handover according to the handover information, so that the UE has a handover basis when the cell handover needs to be performed, thereby improving the handover speed. The source base station can control the candidate base station to perform RRC configuration on the UE according to the resource condition of each cell in the candidate base station, thereby implementing a flexible configuration manner, thereby fully utilizing system resources, and reserving resources for the UE to perform cell handover, thereby reducing Switch delay.

First embodiment

As shown in FIG. 1 , an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 11: The source base station sends an indication information to the candidate base station.

The indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: all UEs in the cell of the candidate base station The cell of the context or part of the cell with the UE context. Preferably, the RRC configuration includes a common RRC resource configuration, a dedicated RRC resource configuration, a security parameter configuration of the UE, a Cell Radio Network Temporary Identity (CRNTI) configuration of the UE, and a dedicated random access channel resource (RACH) configuration of the UE. One or more.

The method for configuring the cell handover in the embodiment of the present disclosure is performed before the UE performs the cell handover, that is, the configuration method of the cell handover in the embodiment of the present disclosure is the preparation work before the cell handover. Specifically, for example, when the UE detects that the signal quality of the neighboring cell of the cell in which the cell is located reaches a preset threshold, the configuration method of the cell handover performed by the source base station in the embodiment of the present disclosure may be triggered. That is, when the UE detects that the signal quality of the neighboring cell of the cell in which the cell is located reaches the preset threshold, the UE reports the signal measurement report to the source base station, so that the source base station selects the candidate base station according to the signal measurement report, and then sends the indication information to the candidate base station. The control candidate base station performs RRC configuration on the UE in the candidate cell or does not perform RRC configuration on the UE. The selection of the candidate base station is not limited to the signal measurement report reported by the UE, and other base stations in the preset area where the source base station is located may also be used as the candidate base station.

Step 12: Send handover information to the UE according to the operation performed by the candidate base station according to the indication information.

The handover information is used to enable the UE to perform cell handover according to the handover information. The candidate base station performs RRC configuration on the UE in the cell with the UE context in the cell of the candidate base station or in the cell with the UE context in the cell of the candidate base station according to the operation performed by the indication information, or does not perform RRC configuration on the UE.

In addition, the candidate base station performs RRC configuration on the UE in the candidate cell, so that the candidate base station reserves resources for the UE in the candidate cell; the candidate base station does not perform RRC configuration on the UE, and the candidate base station is not in the cell of the candidate base station. Keep resources.

In the embodiment of the present disclosure, the source base station indicates, according to the resource condition of each cell in the candidate base station, that the candidate base station performs RRC configuration on all cells with a UE context or a cell with a UE context in its cell, or does not perform RRC configuration on the UE. A flexible configuration mode is implemented, and the system resources can be fully utilized to reserve resources for the UE to perform cell handover, thereby reducing the handover delay.

Second embodiment

As shown in FIG. 2, an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 21: The source base station sends an automatic handover preparation request message to the candidate base station.

The automatic handover preparation request message carries the indication information and cell information of all cells in the cell of the candidate base station that have a UE context. The indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: all UEs in the cell of the candidate base station have a UE context. A cell or part of a cell with a UE context. Preferably, the RRC configuration includes one or more of a common RRC resource configuration, a dedicated RRC resource configuration, a security parameter configuration of the UE, a cell radio network temporary identity configuration of the UE, and a dedicated random access channel resource configuration of the UE.

In addition, the source base station may be used to indicate that the candidate base station performs RRC configuration on the UE in the candidate cell or indicates that the candidate base station does not perform RRC configuration on the UE, and encapsulates cell information of all cells in the cell of the candidate base station with the UE context. An automatic handover preparation request message is formed to be transmitted to the candidate base station. However, the manner of transmitting the above information is not limited thereto.

Step 22: Send handover information to the UE according to the operation performed by the candidate base station according to the indication information.

The handover information is used to enable the UE to perform cell handover according to the handover information.

In this embodiment, the source base station indicates that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or indicates that the candidate base station does not perform RRC configuration on the UE, and sends the information as the automatic handover preparation request message to the candidate base station. And in the automatic handover preparation request message, all the cell information with the UE context in the cell of the candidate base station is also carried, so that the candidate base station can know which cells in the cell have the UE context and which cells do not have the UE context, thereby It is convenient for the candidate base station to perform related operations.

Third embodiment

As shown in FIG. 3, an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 31: The source base station sends an indication information to the candidate base station.

The indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: all UEs in the cell of the candidate base station The cell of the context or part of the cell with the UE context. In this embodiment, the indication information indicates that the candidate base station performs RRC configuration in the candidate cell, and the candidate cell is all cells in the cell of the candidate base station that have a UE context.

Preferably, the RRC configuration includes one or more of a common RRC resource configuration, a dedicated RRC resource configuration, a security parameter configuration of the UE, a cell radio network temporary identity configuration of the UE, and a dedicated random access channel resource configuration of the UE.

Step 32: Receive an RRC configuration result performed by the candidate base station on the UE in the candidate cell from an automatic handover preparation response message.

The RRC configuration result includes cell information of the candidate cell.

That is, when the source base station indicates that the candidate base station performs RRC configuration on the UE in all the cells with the UE context in the cell of the candidate base station, the candidate base station may decide to perform RRC configuration on the UE in one candidate cell, or may not perform RRC configuration on the UE, and When the RRC configuration is performed, the RRC configuration result includes the cell information of the candidate cell and the RRC configuration of the UE. When the RRC configuration is not performed, the RRC configuration result includes the cell information of the candidate cell.

In addition, the candidate base station may send the RRC configuration result to the source base station by using an automatic handover response message. The candidate base station may perform RRC configuration on the UE in the cell with the UE context in the cell of the candidate base station according to the indication information, that is, the candidate base station may reserve the UE in any cell having the UE context in the cell. The resource, and thus the configuration result includes cell information of all cells having the UE context in the cell of the candidate base station.

Preferably, the cell information includes a physical cell identifier of the cell and carrier frequency information.

Step 33: Send handover information to the UE.

The handover information includes the RRC configuration result.

In addition, after receiving the automatic handover preparation response message carrying the RRC configuration result, the source base station needs to send the handover information to the UE, where the handover information includes the RRC configuration result, and therefore, all the UEs in the cell including the candidate base station are included in the handover information. Cell information of the contextual cell. That is, the handover information includes a physical cell identifier of the cell, carrier frequency information, and an RRC configuration.

In this embodiment, when the source base station indicates that the candidate base station performs RRC configuration on the UE in all the cells with the UE context in the cell of the candidate base station, the candidate base station may follow the indication in all the cells with the UE context in the cell of the candidate base station. The resource is reserved for the UE, so that the UE can preferentially switch to the cell in which the resource is reserved when the cell handover is performed subsequently, thereby reducing the handover delay.

Fourth embodiment

As shown in FIG. 4, an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 41: The source base station sends an indication information to the candidate base station.

The indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: all UEs in the cell of the candidate base station The cell of the context or part of the cell with the UE context. In this embodiment, the indication information indicates that the candidate base station performs RRC configuration in the candidate cell, and the candidate cell is a cell in the cell of the candidate base station that has a UE context.

Step 42: Receive an RRC configuration result of the candidate base station for the UE in the candidate cell and cell information of a non-candidate cell with a UE context, from the automatic handover preparation response message.

The RRC configuration result includes cell information of the candidate cell.

In addition, the candidate cell is a cell that has a UE context and is instructed to perform RRC configuration in the cell of the candidate base station, so the non-candidate cell is a cell other than the candidate cell in the cell of the candidate base station, that is, the non-candidate cell includes no UE. The cell of the context and the cell with the UE context but not indicated for RRC configuration. In the embodiment of the present disclosure, the cell information of the non-candidate cell with the UE context needs to be acquired. That is, it is necessary to acquire cell information of a cell that has a UE context but is not instructed to perform RRC configuration in the cell of the candidate base station.

Step 43: Send handover information to the UE.

The handover information includes the RRC configuration result and cell information of a non-candidate cell with a UE context.

When the source base station indicates that the candidate base station performs RRC configuration on the UE in a cell having a UE context in a cell of the candidate base station, the candidate base station may send the RRC configuration result to the source base station by using an automatic handover response message. The candidate base station may perform RRC configuration on the UE in the cell with the UE context in the cell of the candidate base station according to the indication of the source base station, that is, in the cell of the candidate base station, the UE has a resource reserved for the UE in the UE context cell. Therefore, the configuration result includes cell information of a cell having a UE context and being instructed to perform RRC configuration.

In addition, in the cell with the UE context of the candidate base station, a part is instructed to perform RRC configuration, and the remaining part is not instructed to perform RRC configuration, and the remaining part of the cell (ie, the non-candidate cell with the UE context) has the UE. The context is such that the UE does not need to request related information from the source base station again when performing the cell handover. Therefore, the remaining candidate cells that use the partial cell as the UE for cell handover can also reduce the handover delay.

Therefore, after the RRC configuration is performed according to the indication information, the candidate base station needs to obtain the cell information of the non-candidate cell with the UE context in one step, and send the RRC configuration result together with the acquired cell information of the non-candidate cell with the UE context to the source. The base station is forwarded to the UE by the source base station. Wherein, since the cell information of the non-candidate cell with the UE context is acquired by the candidate base station, the information processing amount of the source base station is reduced.

In this embodiment, the RRC configuration result includes the cell information of the candidate cell, and the handover information includes the RRC configuration result and the cell information of the non-candidate cell with the UE context, so the handover information includes the candidate cell and the UE context. Cell information of a non-candidate cell. Therefore, the cell included in the handover information that is fed back to the UE by the source base station is a cell that is instructed to perform RRC configuration in the cell having the UE context of the candidate base station, and a cell that is not instructed to perform RRC configuration. Therefore, the implementation of the present disclosure In the example, the handover information that is fed back to the UE by the source base station does not have duplicate cell information, so that the handover information can be more effectively fed back to the UE, thereby saving resources occupied by the information transmission.

Fifth embodiment

As shown in FIG. 5, an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 51: The source base station sends an indication information to the candidate base station.

The indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: all UEs in the cell of the candidate base station The cell of the context or part of the cell with the UE context. In the real-time example, the indication information indicates that the candidate base station performs RRC configuration in the candidate cell, and the candidate cell is a cell in the cell of the candidate base station that has a UE context.

Step 52: Receive an RRC configuration result performed by the candidate base station on the UE in the candidate cell from an automatic handover preparation response message.

The RRC configuration result includes cell information of the candidate cell.

Step 53: Acquire cell information of a non-candidate cell with a UE context.

Step 54: Send handover information to the UE.

When the source base station indicates that the candidate base station performs RRC configuration on the UE in a cell with a UE context in the cell of the candidate base station, the cell information of the non-candidate cell with the UE context may be directly encapsulated by the source base station and then sent to the UE. The UE, thereby eliminating the cumbersome encapsulation by the candidate base station and then forwarding by the source base station, reduces the transmission of signaling.

In addition, in this embodiment, since the RRC configuration result includes the cell information of the candidate cell, the handover information includes the RRC configuration result and the cell information of the non-candidate cell with the UE context, so the handover information includes the candidate cell and the UE context. Cell information of a non-candidate cell. Therefore, the cell included in the handover information that is fed back to the UE by the source base station is a cell that is instructed to perform RRC configuration in the cell having the UE context of the candidate base station, and a cell that is not instructed to perform RRC configuration. Therefore, the implementation of the present disclosure In the example, the handover information that is fed back to the UE by the source base station does not have duplicate cell information, so that the handover information can be more effectively fed back to the UE, thereby saving resources occupied by the information transmission.

Sixth embodiment

As shown in FIG. 6, an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 61: The source base station sends an indication information to the candidate base station.

The indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: all UEs in the cell of the candidate base station The cell of the context or part of the cell with the UE context. In this embodiment, the indication information indicates that the candidate base station does not perform RRC configuration on the UE.

Step 62: Receive, from an automatic handover preparation response message, cell information of all cells in the cell of the candidate base station that have a UE context.

Step 63: Send handover information to the UE.

The handover information includes cell information of all cells in the cell of the candidate base station that have a UE context.

When the source base station indicates that the candidate base station does not perform RRC configuration on the UE, the candidate base station does not reserve resources for the UE, but for all cells with the UE context in the candidate base station, since the UE context is provided, the UE does not need to perform cell handover. The related information is requested again from the source base station, and thus the cell having the UE context as the candidate cell for the UE to perform cell handover can also reduce the handover delay.

Therefore, the candidate base station does not configure the RRC according to the indication information, but can acquire the cell information of all the cells having the UE context in the cell of the candidate base station, and send the information to the source base station, and the source base station forwards the information to the UE. In the embodiment of the present disclosure, since the cell information of all the cells having the UE context in the cell of the candidate base station is acquired by the candidate base station, the information processing amount of the source base station is reduced.

Seventh embodiment

As shown in FIG. 7, an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 71: The source base station sends an indication information to the candidate base station.

Step 72: After receiving the automatic handover preparation response message sent by the candidate base station, acquire cell information of all cells in the cell of the candidate base station that have a UE context.

Step 73: Send handover information to the UE.

When the source base station indicates that the candidate base station does not perform RRC configuration on the UE, the cell information of all the cells with the UE context in the cell of the candidate base station may be directly encapsulated by the active base station and then sent to the UE, thereby eliminating the candidate base station. The tediousness of encapsulation and then forwarding by the source base station reduces the transmission of signaling.

In summary, the embodiment of the present disclosure can indicate that the candidate base station performs RRC configuration on all cells with UE context or cells with UE context in its cell according to resource conditions of each cell in the candidate base station, or does not perform RRC configuration on the UE. The RRC configuration implements a flexible configuration mode, which can fully utilize system resources and reserve resources for the UE to perform cell handover, thereby reducing handover delay.

Eighth embodiment

As shown in FIG. 8, an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 81: The candidate base station receives an indication information sent by the source base station.

The indication information is used to indicate that the candidate base station performs RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: all cells in the cell of the candidate base station that have a UE context or Part of a cell with a UE context. Preferably, the RRC configuration includes one or more of a common RRC resource configuration, a dedicated RRC resource configuration, a security parameter configuration of the UE, a CRNTI configuration of the UE, and a dedicated RACH resource configuration of the UE.

The method for configuring the cell handover in the embodiment of the present disclosure is performed before the UE performs the cell handover, that is, the configuration method of the cell handover in the embodiment of the present disclosure is the preparation work before the cell handover. Specifically, for example, when the UE detects that the signal quality of the neighboring cell of the cell in which the cell is located reaches a preset threshold, the configuration method of the cell handover of the embodiment of the present disclosure may be triggered by the candidate base station.

Step 82: Perform a corresponding operation according to the indication information, so that the source base station sends the handover information to the UE according to the corresponding operation performed by the candidate base station.

The handover information is used to enable the UE to perform cell handover according to the handover information. The operation performed by the candidate base station according to the indication information is that the candidate base station performs RRC configuration on the UE in the cell with the UE context in the cell of the candidate base station or in the cell with the UE context, or does not perform RRC configuration on the UE.

In the embodiment of the present disclosure, the candidate base station may perform RRC configuration in all cells in the cell or in a cell having a UE context in the cell according to the indication of the source base station, or perform RRC configuration on the UE, thereby implementing flexible The configuration mode can further utilize system resources and reserve resources for the UE to perform cell handover, thereby reducing handover delay.

Ninth embodiment

As shown in FIG. 9, an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 91: The candidate base station receives an automatic handover preparation request message sent by the source base station.

The automatic handover preparation request message carries the indication information and cell information of all cells in the cell of the candidate base station that have a UE context. The indication information is used to indicate that the candidate base station performs RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: all the cells or parts in the cell of the candidate base station that have the UE context have The cell of the UE context. Preferably, the RRC configuration includes one or more of a common RRC resource configuration, a dedicated RRC resource configuration, a security parameter configuration of the UE, a CRNTI configuration of the UE, and a dedicated RACH resource configuration of the UE.

In addition, the candidate base station may obtain, from the automatic handover preparation request message sent by the source base station, indication information indicating that the candidate base station performs RRC configuration on the UE in the candidate cell or indicates that the candidate base station does not perform RRC configuration on the UE, and all of the candidate base stations have Cell information of a cell of a UE context. The specific manner of receiving the above information is not limited thereto.

Step 92: Perform a corresponding operation according to the indication information, so that the source base station sends the handover information to the UE according to the corresponding operation performed by the candidate base station.

In this embodiment, the indication information indicating that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or indicates that the candidate base station does not perform RRC configuration on the UE is sent to the candidate base station as the bearer information of the automatic handover preparation request message. The candidate base station is caused to perform related operations according to the indication information. In addition, in the automatic handover preparation request message, all the cell information with the UE context in the cell of the candidate base station is also carried, so that the candidate base station can know which cells in the cell have the UE context and which cells do not have the UE context. Thereby, the candidate base station is facilitated to perform related operations.

Tenth embodiment

As shown in FIG. 10, an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 101: The candidate base station receives an indication information sent by the source base station.

The indication information is used to indicate that the candidate base station performs RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: all cells in the cell of the candidate base station that have a UE context or Part of a cell with a UE context. In this embodiment, the indication information indicates that the candidate base station performs RRC configuration on the UE in the candidate cell.

Preferably, the RRC configuration includes one or more of a common RRC resource configuration, a dedicated RRC resource configuration, a security parameter configuration of the UE, a CRNTI configuration of the UE, and a dedicated RACH resource configuration of the UE.

Step 102: The RRC configuration result of the candidate base station in the candidate cell for the UE is fed back to the source base station by using an automatic handover preparation response message, so that the source base station sends the handover information to the UE.

The RRC configuration result includes the cell information of the candidate cell. Specifically, when the source base station indicates that the candidate base station performs RRC configuration on the UE in the candidate cell, the candidate base station may decide to perform RRC configuration on the UE in one candidate cell. The RRC configuration may not be performed on the UE, and the RRC configuration may be selected when the RRC configuration is performed. When the RRC configuration is performed on the UE, the RRC configuration result includes the cell information of the candidate cell and the RRC configuration of the UE, and the RRC configuration is not performed when the RRC configuration is not performed. The result contains cell information of the candidate cell.

In addition, when the candidate cell is a cell with a UE context in a cell of the candidate base station, the handover information includes the RRC configuration result; when the candidate cell is a part of a cell of the candidate base station, When the cell of the UE context is used, the handover information includes the RRC configuration result and cell information of a non-candidate cell having a UE context.

That is, when the indication information indicates that the candidate base station performs RRC configuration on the UE in the candidate cell, it is divided into the following two cases:

In the first case, the candidate cell is a cell with a UE context in the cell of the candidate base station, and the candidate base station may perform RRC configuration in all cells with the UE context according to the indication information, that is, the candidate base station may have the UE context in its cell. All the cells are reserved for the UE, and the RRC configuration result of the cell information of all the UE context cells in the cell including the candidate base station is sent to the source base station, so that the source base station forwards to the UE, so that the UE can perform the Switching to these cells preferentially during cell handover reduces the handover delay.

In the second case, the candidate cell is a cell with a UE context in the cell of the candidate base station, and the candidate base station may perform RRC configuration in the cell with the UE context in part, that is, the candidate base station may be part of the UE context in the cell. The resource is reserved for the UE in the cell. Wherein, in a cell with a UE context of the candidate base station, part of which is instructed to perform RRC configuration, the remaining part is not instructed to perform RRC configuration, and the remaining part of the cell (ie, the non-candidate cell with the UE context) has the UE The context is such that the UE does not need to request related information from the source base station again when performing the cell handover. Therefore, the remaining candidate cells that use the partial cell as the UE for cell handover can also reduce the handover delay. Therefore, the handover information received by the UE includes the RRC configuration result and the cell information of the non-candidate cell with the UE context, and the RRC configuration result includes the cell information of the candidate cell, so the handover information received by the UE includes Cell information of the candidate cell and cell information of the non-candidate cell having the UE context.

Eleventh embodiment

As shown in FIG. 11 , an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 111: The candidate base station receives an indication information sent by the source base station.

The indication information is used to indicate that the candidate base station performs RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: all cells in the cell of the candidate base station that have a UE context or Part of a cell with a UE context. In this embodiment, the indication information indicates that the candidate base station performs RRC configuration in the candidate cell, and the candidate cell is a cell in the cell of the candidate base station that has a UE context.

Step 112: The RRC configuration result of the candidate base station in the candidate cell and the cell information of the non-candidate cell with the UE context are fed back to the source base station by using an automatic handover preparation response message, so that the source base station The UE sends the handover information.

The RRC configuration result includes cell information of the candidate cell, and the handover information includes the RRC configuration result and the cell information of the non-candidate cell with the UE context.

That is, in the embodiment of the present disclosure, when the source base station indicates that the candidate base station performs RRC configuration on the UE in a cell that has a UE context in a cell of the candidate base station, the cell information of the non-candidate cell with the UE context may also be directly The candidate base station performs encapsulation, and then sends the signal to the source base station, which is forwarded to the UE by the source base station, thereby reducing the information processing capacity of the source base station.

Twelfth embodiment

As shown in FIG. 12, an embodiment of the present disclosure provides a method for configuring cell handover, which specifically includes the following steps:

Step 121: The candidate base station receives an indication information sent by the source base station.

The indication information is used to indicate that the candidate base station performs RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: all cells in the cell of the candidate base station that have a UE context or Part of a cell with a UE context. In this embodiment, the indication information indicates that the candidate base station does not perform RRC configuration on the UE.

Step 122: The cell information of all the UE context cells in the cell of the candidate base station is fed back to the source base station by the automatic handover preparation response message, so that the source base station sends the handover information to the UE.

The handover information includes all cell information in the cell of the candidate base station that has a UE context cell.

That is, in the embodiment of the present disclosure, when the source base station indicates that the candidate base station does not perform RRC configuration on the UE, the candidate base station may not reserve resources for the UE, but for all cells in the candidate base station with the UE context, due to the UE context Therefore, the UE does not need to request related information from the source base station again when performing cell handover. Therefore, the cell having the UE context as the candidate cell for the UE to perform cell handover can also reduce the handover delay. Therefore, the candidate base station does not configure the RRC according to the indication information, but can acquire the cell information of all the cells having the UE context in the cell of the candidate base station, and send the information to the source base station, and the source base station forwards the information to the UE. The cell information of the cell with the UE context in the cell of the candidate base station is obtained by the candidate base station, so the information processing amount of the source base station is reduced.

In addition, when the indication information indicates that the candidate base station does not perform RRC configuration on the UE, the candidate base station may directly send an empty message of the automatic handover preparation request response to the source base station, thereby triggering the source base station to acquire all the cells in the candidate base station. Cell information with the UE context cell is then forwarded to the UE.

In addition, when the candidate base station performs RRC configuration on the UE in the candidate cell according to the indication information of the source base station, the cell may reject the UE regardless of whether the candidate cell is a cell with a UE context or a cell with a UE context in a cell of the candidate base station. Perform RRC configuration or RRC information configuration of different levels and levels for the UE, and then configure different levels of RRC for the UE according to the current resource and the priority of the UE or refuse to perform RRC configuration on the UE, which are specifically classified into the following types:

The first level: the RRC configuration is not performed on the UE, and the RRC configuration result includes only the physical cell identifier and the carrier frequency information.

The second level: the public RRC resource configuration is performed on the UE, and the RRC configuration result includes the physical cell identifier, the carrier frequency information, and the public RRC resource configuration.

The third level is: performing common RRC resource configuration, security parameter configuration, and cell radio network temporary identifier (C-RNTI) configuration on the UE, and the RRC information configuration result includes physical cell identifier, carrier frequency information, public RRC resource configuration, and security parameter configuration. , C-RNTI configuration. The dedicated RACH resource configuration may also be performed on the UE, and the RRC information configuration result further includes a dedicated RACH resource configuration.

The fourth level: the public RRC resource configuration, the security parameter configuration, the C-RNTI configuration, and the dedicated RRC resource configuration are performed on the UE, and the RRC information configuration result includes the physical cell identifier, the carrier frequency information, the public RRC resource configuration, and the security parameter configuration, and C. -RNTI configuration. The UE may also be configured with dedicated RACH resources and/or other dedicated configurations (e.g., measurement configuration), and the RRC information configuration results also include dedicated RACH resource configurations and/or other dedicated configurations.

As can be seen from the above, the source base station can indicate that the candidate base station performs RRC configuration on all cells with UE context or cells with UE context in its cell, or does not perform RRC configuration on the UE, according to the resource condition of each cell in the candidate base station. For the candidate base station, the RRC configuration may be performed according to the current resource of each cell and the UE level. The system resources may be further utilized to reserve resources for the UE to perform cell handover, thereby reducing the handover delay.

Thirteenth real-time example

An embodiment of the present disclosure provides a configuration apparatus for cell handover. As shown in FIG. 13, the configuration apparatus 130 for the cell handover includes:

The indication sending module 131 is configured to control the source base station to send an indication information to the candidate base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE. The candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

The feedback module 132 is configured to send, according to the operation performed by the candidate base station according to the indication information, handover information, where the handover information is used to enable the UE to perform cell handover according to the handover information.

Preferably, the indication sending module 131 is specifically configured to: control the source base station to send an automatic handover preparation request message to the candidate base station, where the automatic handover preparation request message carries the indication information and all the cells in the candidate base station have Cell information of a cell of a UE context.

Preferably, when the indication information indicates that the candidate base station performs RRC configuration in the candidate cell, and the candidate cell is a cell with a UE context in the cell of the candidate base station, the feedback module 132 includes:

a first receiving unit, configured to receive, by an automatic handover preparation response message, an RRC configuration result that is performed by the candidate base station on the UE in the candidate cell, where the RRC configuration result includes cell information of the candidate cell;

And a first sending unit, configured to send, to the UE, handover information, where the handover information includes the RRC configuration result.

Preferably, when the indication information indicates that the candidate base station performs RRC configuration in the candidate cell, and the candidate cell is a cell that has a UE context in a cell of the candidate base station, the feedback module 132 includes:

a second receiving unit, configured to receive, from an automatic handover preparation response message, an RRC configuration result of the candidate base station in the candidate cell, and cell information of a non-candidate cell having a UE context, where the RRC configuration The result includes the cell information of the candidate cell;

And a second sending unit, configured to send, to the UE, handover information, where the handover information includes the RRC configuration result and cell information of a non-candidate cell with a UE context.

a third receiving unit, configured to receive, by the automatic handover preparation response message, an RRC configuration result that is performed by the candidate base station on the UE in the candidate cell, where the RRC configuration result includes cell information of the candidate cell;

a first acquiring unit, configured to acquire cell information of a non-candidate cell having a UE context;

And a third sending unit, configured to send, to the UE, handover information, where the handover information includes the RRC configuration result and cell information of a non-candidate cell with a UE context.

Preferably, when the indication information indicates that the candidate base station does not perform RRC configuration on the UE, the feedback module 132 includes:

a fourth receiving unit, configured to receive, from an automatic handover preparation response message, cell information of all cells in the cell of the candidate base station that have a UE context;

And a fourth sending unit, configured to send, to the UE, handover information, where the handover information includes cell information of all cells in the cell of the candidate base station that have a UE context.

a fifth receiving unit, configured to acquire, after receiving the automatic handover preparation response message sent by the candidate base station, cell information of all cells in the cell of the candidate base station that have a UE context;

And a fifth sending unit, configured to send, to the UE, handover information, where the handover information includes cell information of all cells in the cell of the candidate base station that have a UE context.

Fourteenth embodiment

The embodiment of the present disclosure further provides a configuration device for cell handover. As shown in FIG. 14, the configuration device 140 for the cell handover includes:

The indication receiving module 141 is configured to control the candidate base station to receive an indication information sent by the source base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE. The candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

The configuration module 142 is configured to perform a corresponding operation according to the indication information, so that the source base station sends the handover information to the UE according to the corresponding operation performed by the candidate base station, where the handover information is used to enable the UE to perform the handover information according to the handover information. Cell handover.

Preferably, the indication receiving module 141 is specifically configured to:

The candidate base station receives the automatic handover preparation request message sent by the source base station, where the automatic handover preparation request message carries the indication information and cell information of all cells in the cell of the candidate base station that have a UE context.

Preferably, when the indication information indicates that the candidate base station performs RRC configuration on the UE in the candidate cell, the configuration module 142 includes:

a first message sending unit, configured to feed back, by the automatic handover preparation response message, the RRC configuration result of the candidate base station to the UE in the candidate cell, so that the source base station sends the handover information to the UE, where The RRC configuration result includes cell information of the candidate cell;

The handover information includes the RRC configuration result when the candidate cell is a cell with a UE context in a cell of the candidate base station;

When the candidate cell is a cell that has a UE context in a cell of the candidate base station, the handover information includes the RRC configuration result and cell information of a non-candidate cell with a UE context.

Preferably, when the indication information indicates that the candidate base station performs RRC configuration in the candidate cell, and the candidate cell is a cell that has a UE context in a cell of the candidate base station, the configuration module 142 includes:

a second message sending unit, configured to feed back, by the automatic handover preparation response message, the RRC configuration result of the candidate base station to the UE in the candidate cell and the cell information of the non-candidate cell with the UE context, so that The source base station sends handover information to the UE;

The RRC configuration result includes cell information of the candidate cell.

The handover information includes the RRC configuration result and cell information of a non-candidate cell having a UE context.

Preferably, when the indication information indicates that the candidate base station does not perform RRC configuration on the UE, the configuration module 142 includes:

a third message sending unit, configured to: by using an automatic handover preparation response message, feed back, to the source base station, all the cell information of the cell in the cell of the candidate base station, so that the source base station sends the handover information to the UE;

Fifteenth embodiment

Corresponding to the foregoing configuration method of the cell handover applied to the source base station side, the embodiment provides a corresponding base station, as shown in FIG.

The transmitter 151 is configured to: send an indication information to the candidate base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, The candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

The processor 152 is connected to the transmitter 151, and is configured to send, according to the operation performed by the candidate base station according to the indication information, handover information, where the handover information is used to enable the UE to perform cell handover according to the handover information. .

The device embodiment of the present disclosure is a device corresponding to the embodiment of the above method, and all the implementation means in the above method embodiment are applicable to the embodiment of the device, and the same technical effect can be achieved.

Sixteenth embodiment

Corresponding to the foregoing configuration method of the cell handover applied to the candidate base station side, the embodiment provides a corresponding base station, as shown in FIG.

The receiver 161 is configured to: receive an indication information sent by the source base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE The candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

The processor 162 is connected to the receiver 161, and configured to perform a corresponding operation according to the indication information, so that the source base station sends handover information to the UE according to a corresponding operation performed by the candidate base station, where the handover information is used. The UE is caused to perform cell handover according to the handover information.

The device embodiment of the present disclosure is a device corresponding to the embodiment of the foregoing method, and all the implementation means in the foregoing method embodiments are applicable to the embodiment of the device, and the same technical effects can be achieved.

In summary, for the UE, the source base station, and the candidate base station, when performing the cell handover configuration method, the specific implementation manners can be classified into the following five types:

The first method is shown in Figure 17:

Step 171: The source base station requests the candidate base station to perform RRC configuration on the UE in the cell with the UE context in the cell of the candidate base station by using the automatic handover preparation request message. The automatic handover request message carries all the UEs in the cell with the candidate base station. Cell information of the cell of the context, where the source base station is a base station accessed by the UE;

Step 172: The candidate base station performs RRC configuration on the UE with the UE context in the cell of the candidate base station according to the automatic handover request message. The RRC configuration includes: a common RRC resource configuration, a dedicated RRC resource configuration, and a security parameter of the UE. One or more of the CRNTI of the UE and the dedicated RACH resource configuration of the UE.

Step 173: The candidate base station sends the RRC configuration result to the source base station by using an automatic handover preparation response message, where the RRC configuration result includes cell information of all cells in the cell of the candidate base station having the UE context.

Step 174: The source base station sends handover information to the UE, where the handover information includes an RRC configuration result.

That is, in the present embodiment, in the automatic handover preparation process, the source base station instructs the candidate base station to perform RRC configuration on all cells in the cell of the candidate base station that have the UE context. If the source base station requests the candidate base station to perform RRC configuration on the UE with the UE context in the cell of the candidate base station, all the cells with the UE context in the cell of the candidate base station feed back the RRC configuration result to the source base station, and the RRC configuration result is The information of the cell having the UE context in the cell of the candidate base station is already included, and the source base station forwards the RRC information result sent by the candidate base station to the UE. Therefore, the source base station does not need to additionally generate information about all cells in the candidate base station that have the UE context and send the information to the UE. .

The second way is shown in Figure 18:

Step 181: The source base station requests the candidate base station to perform RRC configuration on the UE in the cell with the UE context in the cell of the candidate base station by using the automatic handover preparation request message. The source base station is the base station accessed by the UE, and the automatic handover request message is used. Cell information of all cells having a UE context in a cell carrying a candidate base station;

Step 182: The candidate base station performs RRC information configuration on the UE that has a UE context in a cell of the candidate base station according to the automatic handover request message.

Step 183: The candidate base station generates cell information of a non-candidate cell with a UE context.

Step 184: The candidate base station sends the RRC configuration result and the cell information of the non-candidate cell with the UE context to the source base station by using an automatic handover preparation response message. The RRC information configuration includes: a common RRC resource configuration, a dedicated RRC resource configuration, and a UE. One or more of a security parameter configuration, a CRNTI configuration of the UE, and a dedicated RACH resource configuration of the UE; the information of the cell includes: a physical layer cell identifier of the cell and carrier frequency information;

Step 185: The source base station sends the RRC configuration result and the cell information of the non-candidate cell with the UE context to the UE.

Mode 3, as shown in Figure 19:

Step 191: The source base station requests the candidate base station to perform RRC configuration on the UE in the cell with the UE context in the cell of the candidate base station by using the automatic handover preparation request message. The source base station is the base station accessed by the UE, and the automatic handover request message is used. Cell information of all cells having a UE context in a cell carrying a candidate base station;

Step 192: The candidate base station performs RRC information configuration on the UE in the cell with the UE context in the cell of the candidate base station according to the automatic handover request message.

Step 193: The candidate base station sends the RRC information result to the source base station by using an automatic handover preparation response message. The RRC information configuration includes: a common RRC resource configuration, a dedicated RRC resource configuration, a security parameter configuration of the UE, a CRNTI configuration of the UE, and a UE. One or more of the dedicated RACH resource configurations; the information of the cell includes: a physical layer cell identifier of the cell and carrier frequency information;

Step 194: The source base station generates cell information of a non-candidate cell with a UE context.

Step 195: The source base station sends the RRC information result and the cell information of the non-candidate cell with the UE context to the UE.

Mode 4, as shown in Figure 20:

Step 201: The source base station indicates that the candidate base station does not perform RRC configuration on the UE by using the automatic handover preparation request message. The source base station is the base station that the UE accesses, and the automatic handover request message carries all the cells with the UE context in the cell of the candidate base station. Cell information;

Step 202: The candidate base station does not perform RRC information configuration on the UE according to the automatic handover request message.

Step 203: Generate information of all cells in the cell with the candidate base station that have the UE context.

Step 204: The candidate base station sends the information of all the cells with the UE context in the cell of the candidate base station to the source base station by using an automatic handover preparation response message; the information of the cell includes: a physical layer cell identifier of the cell and carrier frequency information;

Step 205: The source base station sends all the cell information with the UE context in the cell of the candidate base station to the UE.

Method 5, as shown in Figure 21:

Step 211: The source base station indicates that the candidate base station does not perform RRC configuration on the UE by using the automatic handover preparation request message. The source base station is the base station that the UE accesses, and the automatic handover request message carries all the cells with the UE context in the cell of the candidate base station. Cell information;

Step 212: The candidate base station does not perform RRC information configuration on the UE according to the automatic handover request message.

Step 213: Send an automatic handover preparation response to the source base station.

Step 214: The source base station generates all the cell information with the UE context in the cell with the candidate base station; the information of the cell includes: the physical layer cell identifier of the cell and the carrier frequency information;

Step 215: The source base station sends all the cell information with the UE context in the cell of the candidate base station to the UE.

In summary, the method for configuring cell handover in the embodiment of the present disclosure enables the source base station to indicate to the UE that the candidate base station performs dedicated resource reservation and successfully reserves the resource in the handover preparation for automatic handover, so that the UE preferentially selects the pre-selection. The cell that retains the resource serves as the target cell for automatic handover, which reduces the handover delay.

Moreover, it should be noted that in the apparatus and method of the present disclosure, it is apparent that the various components or steps may be decomposed and/or recombined. These decompositions and/or recombinations should be considered as equivalents to the present disclosure. Also, the steps of performing the series of processes described above may naturally be performed in chronological order in the order illustrated, but need not necessarily be performed in chronological order. Certain steps may be performed in parallel or independently of one another.

A1. A method for configuring cell handover, including:

A2. The method for configuring cell handover according to claim A1, wherein the step of the source base station transmitting an indication information to the candidate base station comprises:

The source base station sends an automatic handover preparation request message to the candidate base station, where the automatic handover preparation request message carries the indication information and cell information of all cells in the cell of the candidate base station that have a UE context.

A3. The method for configuring cell handover according to claim A1, wherein when the indication information indicates that the candidate base station performs RRC configuration in a candidate cell, and the candidate cell is all of the cells of the candidate base station The step of transmitting the handover information to the UE according to the operation performed by the candidate base station according to the indication information, including:

Receiving, by the automatic handover preparation response message, an RRC configuration result that is performed by the candidate base station on the UE in the candidate cell, where the RRC configuration result includes cell information of the candidate cell;

And transmitting, to the UE, handover information, where the handover information includes the RRC configuration result.

A4. The method for configuring a cell handover according to claim A1, wherein when the indication information indicates that the candidate base station performs RRC configuration in a candidate cell, and the candidate cell is a part of a cell of the candidate base station, The step of transmitting the handover information to the UE according to the operation performed by the candidate base station according to the indication information, including:

Receiving, by the automatic handover preparation response message, an RRC configuration result of the candidate base station for the UE in the candidate cell, and cell information of a non-candidate cell having a UE context, where the candidate cell includes the candidate cell Cell information;

And transmitting, to the UE, handover information, where the handover information includes the RRC configuration result and cell information of a non-candidate cell with a UE context.

A5. The method for configuring cell handover according to claim A1, wherein when the indication information indicates that the candidate base station performs RRC configuration in a candidate cell, and the candidate cell is a part of a cell of the candidate base station, The step of transmitting the handover information to the UE according to the operation performed by the candidate base station according to the indication information, including:

Obtaining cell information of a non-candidate cell having a UE context;

A6. The method for configuring cell handover according to claim A1, wherein, when the indication information indicates that the candidate base station does not perform RRC configuration on the UE, according to an operation performed by the candidate base station according to the indication information, to the UE Steps to send switching information, including:

Receiving, from an automatic handover preparation response message, cell information of all cells in the cell of the candidate base station that have a UE context;

The handover information is sent to the UE, where the handover information includes cell information of all cells in the cell of the candidate base station that have a UE context.

A. The method for configuring cell handover according to claim A1, wherein, when the indication information indicates that the candidate base station does not perform RRC configuration on the UE, the operation performed according to the indication information by the candidate base station, The step of sending handover information to the UE includes:

After receiving the automatic handover preparation response message sent by the candidate base station, acquiring cell information of all cells in the cell of the candidate base station that have a UE context;

And transmitting, to the UE, handover information, where the handover information includes cell information of all cells in the cell of the candidate base station that have a UE context.

A. The method for configuring a cell handover according to any one of claims A1 to A7, wherein the RRC configuration comprises a common RRC resource configuration, a dedicated RRC resource configuration, a security parameter configuration of the UE, and a cell wireless network temporary identifier of the UE. One or more of configuration, UE dedicated random access channel resource configuration.

B9. A method for configuring cell handover, comprising:

The method for configuring a cell handover according to claim B9, wherein the step of receiving, by the candidate base station, an indication information sent by the source base station, includes:

The configuration method of the cell handover according to claim B9, wherein, when the indication information indicates that the candidate base station performs RRC configuration on the UE in the candidate cell, the performing the corresponding operation according to the indication information, so that The step of the source base station transmitting the handover information to the UE according to the corresponding operation performed by the candidate base station, including:

And transmitting, by the source base station, an RRC configuration result of the candidate base station to the UE in the candidate cell, by using an automatic handover preparation response message, so that the source base station sends handover information to the UE, where the RRC configuration result includes the Cell information of the candidate cell;

The method for configuring cell handover according to claim B9, wherein, when the indication information indicates that the candidate base station performs RRC configuration in a candidate cell, and the candidate cell is a part of a cell of the candidate base station, The step of performing the corresponding operation according to the indication information, so that the source base station sends the handover information to the UE according to the corresponding operation performed by the candidate base station, includes:

And transmitting, by the automatic base handover preparation response message, the RRC configuration result of the candidate base station to the UE in the candidate cell and the cell information of the non-candidate cell with the UE context, so that the source base station sends the handover to the UE information;

The RRC configuration result includes cell information of the candidate cell.

The method for configuring a cell handover according to claim B9, wherein, when the indication information indicates that the candidate base station does not perform RRC configuration on the UE, the performing the corresponding operation according to the indication information, so that the source base station And the step of sending the handover information to the UE according to the corresponding operation performed by the candidate base station, including:

All the cell information of the cell of the candidate base station in the cell of the candidate base station is fed back to the source base station by the automatic handover preparation response message, so that the source base station sends the handover information to the UE;

The method for configuring cell handover according to any one of claims B9 to B13, wherein the RRC configuration comprises a common RRC resource configuration, a dedicated RRC resource configuration, a security parameter configuration of the UE, and a cell radio network temporary identifier of the UE. One or more of configuration, UE dedicated random access channel resource configuration.

C15. A device for configuring cell handover, comprising:

D16. A device for configuring cell handover, comprising:

E17. A base station comprising:

F18. A base station comprising:

The above is an alternative embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and refinements without departing from the principles of the present disclosure. Within the scope of protection of the present disclosure.

Claims

A method for configuring cell handover includes:

The source base station sends an indication information to the candidate base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or indicates that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

And performing, according to the operation performed by the candidate base station according to the indication information, handover information, where the handover information is used to enable the UE to perform cell handover according to the handover information.
The method for configuring cell handover according to claim 1, wherein the step of the source base station transmitting an indication information to the candidate base station comprises:

The source base station sends an automatic handover preparation request message to the candidate base station, where the automatic handover preparation request message carries the indication information and cell information of all cells in the cell of the candidate base station that have a UE context.
The method for configuring a cell handover according to claim 1, wherein the indication information indicates that the candidate base station performs RRC configuration in a candidate cell, and the candidate cell is a UE context in all cells of the candidate base station And the step of sending the handover information to the UE according to the operation performed by the candidate base station according to the indication information, including:

Receiving, by the automatic handover preparation response message, an RRC configuration result that is performed by the candidate base station on the UE in the candidate cell, where the RRC configuration result includes cell information of the candidate cell;

And transmitting, to the UE, handover information, where the handover information includes the RRC configuration result.
The method for configuring cell handover according to claim 1, wherein the indication information indicates that the candidate base station performs RRC configuration in a candidate cell, and the candidate cell is a UE context of a part of the candidate base station And the step of sending the handover information to the UE according to the operation performed by the candidate base station according to the indication information, including:

Receiving, by the automatic handover preparation response message, an RRC configuration result of the candidate base station for the UE in the candidate cell, and cell information of a non-candidate cell having a UE context, where the candidate cell includes the candidate cell Cell information;

And transmitting, to the UE, handover information, where the handover information includes the RRC configuration result and cell information of a non-candidate cell having a UE context.
The method for configuring cell handover according to claim 1, wherein the indication information indicates that the candidate base station performs RRC configuration in a candidate cell, and the candidate cell is a UE context of a part of the candidate base station And the step of sending the handover information to the UE according to the operation performed by the candidate base station according to the indication information, including:

Receiving, by the automatic handover preparation response message, an RRC configuration result that is performed by the candidate base station on the UE in the candidate cell, where the RRC configuration result includes cell information of the candidate cell;

Obtaining cell information of a non-candidate cell having a UE context;

And transmitting, to the UE, handover information, where the handover information includes the RRC configuration result and cell information of a non-candidate cell with a UE context.
The method for configuring cell handover according to claim 1, wherein, when the indication information indicates that the candidate base station does not perform RRC configuration on the UE, according to an operation performed by the candidate base station according to the indication information, sending a handover to the UE The steps of the information, including:

Receiving, from an automatic handover preparation response message, cell information of all cells in the cell of the candidate base station that have a UE context;

The handover information is sent to the UE, where the handover information includes cell information of all cells in the cell of the candidate base station that have a UE context.
The method for configuring cell handover according to claim 1, wherein, when the indication information indicates that the candidate base station does not perform RRC configuration on the UE, the performing, according to the operation performed by the candidate base station according to the indication information, to the UE Steps to send switching information, including:

After receiving the automatic handover preparation response message sent by the candidate base station, acquiring cell information of all cells in the cell of the candidate base station that have a UE context;

And transmitting, to the UE, handover information, where the handover information includes cell information of all cells in the cell of the candidate base station that have a UE context.
The method for configuring a cell handover according to any one of claims 1 to 7, wherein the RRC configuration includes a common RRC resource configuration, a dedicated RRC resource configuration, a security parameter configuration of the UE, a cell wireless network temporary identifier configuration of the UE, One or more of the UE's dedicated random access channel resource configurations.
A method for configuring cell handover includes:

The candidate base station receives an indication information sent by the source base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or indicates that the candidate base station does not perform RRC configuration on the UE, where the candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

Performing a corresponding operation according to the indication information, so that the source base station sends handover information to the UE according to the corresponding operation performed by the candidate base station, where the handover information is used to enable the UE to perform cell handover according to the handover information.
The method for configuring cell handover according to claim 9, wherein the step of receiving, by the candidate base station, an indication information sent by the source base station comprises:

The candidate base station receives the automatic handover preparation request message sent by the source base station, where the automatic handover preparation request message carries the indication information and cell information of all cells in the cell of the candidate base station that have a UE context.
The method for configuring a cell handover according to claim 9, wherein when the indication information indicates that the candidate base station performs RRC configuration on a UE in a candidate cell, the performing a corresponding operation according to the indication information, so that the The step of the source base station transmitting the handover information to the UE according to the corresponding operation performed by the candidate base station, including:

And transmitting, by the source base station, an RRC configuration result of the candidate base station to the UE in the candidate cell, by using an automatic handover preparation response message, so that the source base station sends handover information to the UE, where the RRC configuration result includes the Cell information of the candidate cell;

The handover information includes the RRC configuration result when the candidate cell is a cell with a UE context in a cell of the candidate base station;

When the candidate cell is a cell that has a UE context in a cell of the candidate base station, the handover information includes the RRC configuration result and cell information of a non-candidate cell with a UE context.
The method for configuring cell handover according to claim 9, wherein the indication information indicates that the candidate base station performs RRC configuration in a candidate cell, and the candidate cell is a UE context of a part of the candidate base station. And the step of performing the corresponding operation according to the indication information, so that the source base station sends the handover information to the UE according to the corresponding operation performed by the candidate base station, including:

And transmitting, by the automatic base handover preparation response message, the RRC configuration result of the candidate base station to the UE in the candidate cell and the cell information of the non-candidate cell with the UE context, so that the source base station sends the handover to the UE information;

The RRC configuration result includes cell information of the candidate cell.

The handover information includes the RRC configuration result and cell information of a non-candidate cell having a UE context.
The method for configuring cell handover according to claim 9, wherein, when the indication information indicates that the candidate base station does not perform RRC configuration on the UE, the performing the corresponding operation according to the indication information, so that the source base station according to the And the step of sending, by the candidate base station, the handover information to the UE, including:

All the cell information of the cell of the candidate base station in the cell of the candidate base station is fed back to the source base station by the automatic handover preparation response message, so that the source base station sends the handover information to the UE;

The handover information includes all cell information in the cell of the candidate base station that has a UE context cell.
The method for configuring cell handover according to any one of claims 9 to 13, wherein the RRC configuration includes a common RRC resource configuration, a dedicated RRC resource configuration, a security parameter configuration of the UE, a cell wireless network temporary identifier configuration of the UE, One or more of the UE's dedicated random access channel resource configurations.
A device for configuring cell handover includes:

The indication sending module is configured to control the source base station to send an indication information to the candidate base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or indicates that the candidate base station does not perform RRC configuration on the UE. The candidate cell is: all cells in the cell of the candidate base station having a UE context or a cell having a UE context;

The feedback module is configured to send, according to the operation performed by the candidate base station according to the indication information, handover information, where the handover information is used to enable the UE to perform cell handover according to the handover information.
A device for configuring cell handover includes:

The indication receiving module is configured to control, by the candidate base station, an indication information sent by the source base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE. The candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

a configuration module, configured to perform a corresponding operation according to the indication information, so that the source base station sends handover information to the UE according to the corresponding operation performed by the candidate base station, where the handover information is used to enable the UE to perform a cell according to the handover information. Switch.
A base station comprising:

The transmitter is configured to: send an indication information to the candidate base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE. The candidate cell is: all cells in the cell of the candidate base station having a UE context or a cell having a UE context;

And the processor is configured to send, to the UE, handover information according to the operation performed by the candidate base station according to the indication information, where the handover information is used to enable the UE to perform cell handover according to the handover information.
A base station comprising:

The receiver is configured to: receive an indication information sent by the source base station, where the indication information is used to indicate that the candidate base station performs radio link control RRC configuration on the UE in the candidate cell or that the candidate base station does not perform RRC configuration on the UE, The candidate cell is: a cell having a UE context or a cell having a UE context in a cell of the candidate base station;

The processor is connected to the receiver, and is configured to perform a corresponding operation according to the indication information, so that the source base station sends handover information to the UE according to a corresponding operation performed by the candidate base station, where the handover information is used to enable the UE Performing cell handover according to the handover information.