WO2018082435A1

WO2018082435A1 - Terminal device mobility processing method, terminal device and base station

Info

Publication number: WO2018082435A1
Application number: PCT/CN2017/105859
Authority: WO
Inventors: 张健
Original assignee: 华为技术有限公司
Priority date: 2016-11-04
Filing date: 2017-10-12
Publication date: 2018-05-11
Also published as: CN108023628B; CN108023628A

Abstract

Provided are a terminal device mobility processing method, a terminal device and a base station. The method comprises: a terminal device receiving a downlink signal sent by a base station using first beam information; the terminal device sending first instruction information to the base station according to the downlink signal sent using the first beam information, wherein the first instruction information is used for instructing the base station to send the downlink signal to the terminal device by using second beam information; and the terminal device receiving the downlink signal sent by the base station using the second beam information. By means of the terminal device mobility processing method, the terminal device and the base station provided in the embodiments of the present application, a base station can selectively send a downlink signal suitable for a terminal device to the terminal device according to the requirement of the terminal device, thereby increasing the modes of the base station sending the downlink signal to the terminal device, and satisfying the requirements of different terminal devices.

Description

Terminal device mobility processing method, terminal device and base station

The present application claims priority to Chinese Patent Application No. 201610965728.7, filed on November 4, 2016, filed on PCT Application Serial No. Combined in this application.

Technical field

The embodiments of the present invention relate to communication technologies, and in particular, to a terminal device mobility processing method, a terminal device, and a base station.

Background technique

With the continuous development of communication technologies, existing wireless spectrum resources have been unable to meet the needs of users in actual use. Therefore, base stations and terminal devices using high frequency signals for communication have appeared in cellular communication systems. However, since the attenuation of the high-frequency signal during transmission is relatively large, when the high-frequency signal is transmitted between the base station and the terminal device, beamforming can be used to transmit a high-frequency signal to the terminal device to improve the high-frequency signal. The power to expand the coverage of the cell.

At present, when the base station transmits the downlink signal for mobility management to the terminal device by using the beamforming, the terminal device may perform mobility management actions such as cell camping, cell reselection, and cell handover based on the measurement decision of the downlink signal. . However, since the above beamforming includes different beam types and/or different beam scanning modes, how the base station in the cell using the high frequency signal transmits the downlink signal to the terminal device is an urgent problem to be solved.

Summary of the invention

The embodiment of the present invention provides a method for processing mobility of a terminal device, a terminal device, and a base station, which are used to solve the technical problem of how a base station in a cell using a high frequency signal transmits a downlink signal to a terminal device in the prior art.

A first aspect of the present application provides a method for processing mobility of a terminal device, including: receiving, by the terminal device, a downlink signal that is sent by the base station by using the first beam information; and the terminal device according to the downlink signal that is sent by using the first beam information, The base station sends the first indication information, where the first indication information is used to indicate that the base station sends the downlink signal to the terminal device by using the second beam information, and the terminal device receives the second base station by using the second The downlink signal transmitted by the beam information.

The method for processing the mobility of the terminal device provided by the first aspect, when the base station sends the downlink signal for the mobility management of the terminal device to the terminal device by using the first beam information, the terminal device may send the first indication information to the base station, The base station can use the second beam information to retransmit the downlink signal to the terminal device. That is, the base station can transmit the downlink signal applicable to the terminal device to the terminal device in a targeted manner according to the requirements of the terminal device, and increase the manner in which the base station sends the downlink signal to the terminal device, which satisfies the requirements of different terminal devices.

Optionally, the beam type and the beam scanning mode included in the foregoing first beam information and the second beam information are The information of the beam included in the first beam information is a first beam type or a second beam type; and the beam type included in the second beam information is a first beam type or a second beam type, where The beam angle of the beam corresponding to the second beam type is smaller than the beam angle of the beam corresponding to the first beam type, and the beam scanning mode of the first beam information is a single beam scanning mode or a multiple beam parallel scanning mode. The beam scanning mode included in the second beam information is a single beam scanning mode or a multiple beam parallel scanning mode.

Optionally, before the receiving, by the terminal device, the downlink signal sent by the base station by using the first beam information, the method further includes: the terminal device receiving the capability information of the serving cell that is sent by the base station by using the first beam information, and the capability of the neighboring cell The capability information of the serving cell includes at least one of the following: a mapping relationship between a beam type and a delay level supported by the serving cell, and a mapping between a beam scanning mode and a delay level supported by the serving cell. The relationship information of the neighboring cell includes at least one of the following: a mapping relationship between a beam type and a delay level supported by the neighboring cell, and a beam scanning mode and a delay supported by the neighboring cell. The mapping relationship of levels.

Illustratively, when the base station is the base station to which the serving cell belongs, the terminal device sends the first indication information to the base station, including: the terminal device according to a delay level of the current service, and the serving cell. The second indicator information is determined by the capability information, and the terminal device sends the first indication information to the base station according to the second beam information; the first indication information includes: the second beam information or The identifier of the second beam information; when the base station is the base station to which the neighboring cell belongs, the terminal device sends the first indication information to the base station, including: the delay level of the terminal device according to the current service And determining, by the capability information of the neighboring cell, the second beam information; the terminal device sending the first indication information to the base station according to the second beam information; the first indication information includes: Identification of the second beam information or the second beam information.

The method for processing the mobility of the terminal device provided by the possible implementation, the base station may send the serving cell to the terminal device before transmitting the downlink signal for the terminal device to perform mobility management to the terminal device by using the first beam information. The capability information, and the capability information of the neighboring cell, so that the terminal device can determine the second beam information to be used by the base station according to the delay level of the current service and the capability information of the cell corresponding to the base station, and The second beam information is carried in the first indication information and sent to the base station, so that the base station can use the second beam information to retransmit the downlink signal to the terminal device, so that the delay of the terminal device when receiving the downlink signal can satisfy the terminal device. Current business needs.

Optionally, the downlink signal includes at least one of the following: a synchronization channel and a beam reference signal BRS.

Optionally, the terminal device sends the first indication information to the base station, where the terminal device sends a first indication to the base station when the measurement result of the downlink signal is less than or equal to a first preset threshold. information.

The method for processing the mobility of the terminal device provided by the possible embodiment, when the base station sends the downlink signal for the mobility management of the terminal device to the terminal device by using the first beam information, the terminal device may be in the downlink signal When the measurement result is less than or equal to the first preset threshold, that is, when the cell camping condition or the cell handover condition is not met, the first indication information is sent to the base station, so that the base station can resend the downlink to the terminal device by using the second beam information. The signal is used to enable the terminal device with different radio conditions to successfully complete the cell camping, improve the success rate of the terminal device cell camping, or enable the terminal device that is close to the cell switching condition to obtain the downlink signal measurement result more quickly. Accelerate the process of cell handover decision to meet the delay requirements of the terminal equipment.

Optionally, the terminal device is a terminal device that is performing cell camping, and after the terminal device receives the downlink signal that is sent by the base station by using the second beam information, the terminal device further includes: the terminal device is When the measurement result of the downlink signal is greater than the first preset threshold, the base station performs a random access procedure, and sends the random access procedure to the base station. Sending the second indication information, the second indication information is used to indicate that the base station stops using the second beam information to send the downlink signal, and the second indication information includes: the first beam information or the first beam information The terminal device continues to receive the downlink signal that is sent by the base station by using the first beam information; and when the measurement result of the downlink signal is less than a second preset threshold, the terminal device sends the downlink signal to the base station again. Sending the first indication information.

The method for processing the mobility of the terminal device provided by the possible implementation manner, when the base station is transmitting the downlink signal for the mobility management of the terminal device to the terminal device by using the first beam information for the terminal device that is camping on the cell The terminal device may send the first indication information to the base station when the measurement result of the downlink signal does not meet the cell camping condition, so that the base station can re-route the second beam information that is narrower than the beam corresponding to the first beam information to the terminal. The device sends the downlink signal, so that the terminal device can perform a cell camping process with the base station according to the measurement result of the downlink signal. In this way, the terminal device can trigger the base station to use different beam information to transmit the downlink signal based on the radio condition in which the terminal device is located, instead of the base station always transmitting the downlink signal in the coverage of the serving cell by using the narrower beam, thereby reducing the base station signal. The cost and the cost enable the terminal equipment with different wireless conditions to successfully complete the cell camping, thereby improving the success rate of the terminal equipment cell camping.

Optionally, the terminal device is a terminal device that performs cell handover, and the base station is a base station where the serving cell is located, and the terminal device receives the downlink signal sent by the base station by using the second beam information, and further The terminal device reports the measurement result of the downlink signal to the base station; when the measurement result satisfies the cell handover condition, the terminal device receives a handover command sent by the base station; the handover command is used to indicate The terminal device accesses a target cell.

According to the method for processing the mobility of the terminal device provided by the possible implementation, when the base station transmits the downlink signal for the mobility management of the terminal device to the terminal device by using the first beam information for the terminal device that is performing the cell handover, The terminal device may determine, according to the measurement result of the downlink signal, the condition that the terminal device is close to the cell handover, and send the first indication information to the base station, so that the base station can adopt a narrower beam corresponding to the first beam information and a second faster scanning mode. The beam information is re-transmitted to the terminal device, so that the cell switch can be determined according to the measurement result of the downlink signal by the terminal device. In this way, the base station can use the first beam information to send a downlink signal to the terminal device to reduce the base station beam scanning overhead before the terminal device meets the handover condition. When the terminal device is close to the cell handover condition, the triggering base station sends the downlink signal according to the second beam information, so that the terminal device can obtain the measurement result of the downlink signal more quickly, so as to accelerate the process of the handover decision to meet the delay of the terminal device. Claim.

Optionally, the terminal device is a terminal device that performs cell handover, where the base station is a base station where the target cell is located; and when the measurement result of the downlink signal is less than a first preset threshold, the terminal device The sending, by the base station, the first indication information, includes: when the measurement result of the downlink signal is less than a first preset threshold, the terminal device sends the first indication information to the base station where the target cell is located.

According to the method for processing the mobility of the terminal device provided by the possible implementation, the base station to which the target cell belongs is transmitting the terminal device for mobility management to the terminal device by using the first beam information for the terminal device that is performing the cell handover. When the downlink signal is used, the terminal device may determine the condition that the terminal device is close to the cell handover in the measurement result of the downlink signal, and send the first indication information to the base station to which the target cell belongs, so that the base station to which the target cell belongs may adopt the first beam information. The corresponding second beam information with a narrow beam and a fast scanning mode is retransmitted to the terminal device, so that the terminal device can decide whether to perform cell handover according to the measurement result of the downlink signal. In this way, the base station to which the target cell belongs can be adopted before the terminal device meets the handover condition. The first beam information sends a downlink signal to the terminal device to reduce the base station beam scanning overhead to which the target cell belongs. When the terminal device is close to the cell handover condition, the base station to which the target cell belongs is triggered to send the downlink signal according to the second beam information, thereby facilitating the terminal device to obtain the measurement result of the downlink signal more quickly, so as to accelerate the process of the handover decision to meet the terminal device. The requirement for delay.

A second aspect of the embodiments of the present disclosure provides a method for processing mobility of a terminal device, where the base station sends a downlink signal to the terminal device by using the first beam information, and the base station receives the first indication information sent by the terminal device, where the first The indication information is used to indicate that the base station sends the downlink signal to the terminal device by using the second beam information, and the base station sends the downlink signal to the terminal device by using the second beam information.

Optionally, at least one of a beam type and a beam scanning mode included in the first beam information and the second beam information is different; the beam type included in the first beam information is a first beam type or a second a beam type; the beam type included in the second beam information is a first beam type or a second beam type, where a transmission angle of a beam corresponding to the second beam type is smaller than a beam corresponding to a beam corresponding to the first beam type The beam scanning mode included in the first beam information is a single beam scanning mode or a multiple beam parallel scanning mode; and the beam scanning mode included in the second beam information is a single beam scanning mode or a multiple beam parallel scanning mode.

Optionally, before the sending, by the base station, the downlink information to the terminal device by using the first beam information, the method further includes: sending, by the base station, the capability information of the serving cell and the capability information of the neighboring cell to the terminal device by using the first beam information; The capability information of the serving cell includes at least one of the following: a mapping relationship between a beam type and a delay level supported by the serving cell, and a mapping relationship between a beam scanning mode and a delay level supported by the serving cell, The capability information of the neighboring cell includes at least one of the following: a mapping relationship between a beam type and a delay level supported by the neighboring cell, and a mapping relationship between a beam scanning mode and a delay level supported by the neighboring cell. .

Illustratively, when the base station is a base station to which the serving cell belongs, the first indication information includes: the terminal device determining, according to a delay level of a current service and capability information of the serving cell, The second beam information or the identifier of the second beam information; the base station sends the downlink signal to the terminal device by using the second beam information, where the base station uses the terminal device according to the current service. The second beam information determined by the delay level and the capability information of the serving cell, and the downlink signal is sent to the terminal device; when the base station is a base station to which the neighboring cell belongs, the The indication information includes: the second beam information or the identifier of the second beam information determined by the terminal device according to a delay level of the current service and capability information of the neighboring cell; Transmitting, by the second beam information, the downlink signal to the terminal device, including: the base station adopting, by the terminal device, a delay level according to a current service, and the neighboring The second beam information determined capability information area, and transmits to the terminal device of the downlink signal.

Optionally, the base station sends the downlink signal to the terminal device by using the second beam information, where the base station sends the downlink to the terminal device by using the preset second beam information. signal.

Optionally, the downlink signal includes at least one of the following: a synchronization channel and/or a beam reference signal BRS.

Optionally, the sending, by the base station, the downlink signal to the terminal device by using the second beam information, including: determining, by the base station, a coverage area corresponding to the second beam information according to location information of the terminal device The base station sends the downlink signal to the terminal device by using the second beam information in a coverage area corresponding to the second beam information. Optionally, the first indication information includes: a coverage area corresponding to the first beam information, and the base station sends the downlink signal to the terminal device by using the second beam information, where: the base station The coverage corresponding to the first beam information is used as a coverage area corresponding to the second beam information; the base station is in the second The downlink information is sent to the terminal device by using the second beam information in a coverage area corresponding to the beam information. Optionally, the sending, by the base station, the downlink signal to the terminal device by using the second beam information, the determining, by the base station, determining, by using the measurement of the first indication information, the first beam information a coverage area, and the coverage area corresponding to the first beam information is used as a coverage area corresponding to the second beam information; and the base station uses the second beam information in a coverage area corresponding to the second beam information. Sending the downlink signal to the terminal device.

The method for processing the mobility of the terminal device provided by the possible implementation manner, the base station may determine the coverage area corresponding to the second beam information, and further, may use the second beam information to the terminal device within the coverage area corresponding to the second beam information. The downlink signal is sent, and in the other coverage of the cell, the downlink information is still sent by using the first beam information to reduce the signaling overhead of the base station.

Optionally, the receiving, by the base station, the first indication information that is sent by the terminal device, where the base station receives, by the base station, the first sent by the terminal device when the measurement result of the downlink signal is less than or equal to a first preset threshold. Instructions.

Optionally, the terminal device is a terminal device that is performing cell camping, and after the base station sends the downlink signal to the terminal device by using the second beam information, the base station further includes: the base station and the terminal The device performs a random access procedure, and receives the second indication information sent by the terminal device, where the second indication information is used to indicate that the base station stops using the second beam information to send the downlink signal; the second indication information The identifier of the first beam information or the first beam information is included.

Optionally, the terminal device is a terminal device that performs cell handover, and the base station is a base station where the serving cell is located, and after the base station sends the downlink signal to the terminal device by using the second beam information, The base station further includes: receiving, by the base station, a measurement result of the downlink signal reported by the terminal device; when the measurement result meets a cell handover condition, the base station sends a handover command to the terminal device; Instructing the terminal device to initiate a random access procedure to a base station where the target cell is located. After the receiving, by the base station, the first indication information sent by the terminal device, the base station further includes: sending, by the base station, first indication information to a base station where the target cell is located.

For the beneficial effects of the processing method of the terminal device mobility provided by the foregoing second aspect and the possible implementation manners of the second aspect, refer to the first aspect and the beneficial effects of the possible implementation manners of the first aspect. , will not repeat them here.

A third aspect of the present application provides a terminal device, including: a receiving module, configured to receive a downlink signal that is sent by a base station by using a first beam information, and a sending module, configured to send, according to a downlink signal that is sent by using the first beam information, The base station sends the first indication information, where the first indication information is used to indicate that the base station sends the downlink signal to the terminal device by using the second beam information, and the receiving module is further configured to receive the base station adopting The downlink signal sent by the second beam information.

Optionally, the first beam information and the second beam information comprise different beam types and beam scanning modes, and the first beam information includes a first beam type or a second beam type. a beam type; the beam type included in the second beam information is a first beam type or a second beam type, where a transmission angle of a beam corresponding to the second beam type is smaller than a beam corresponding to a beam corresponding to the first beam type The beam scanning mode included in the first beam information is a single beam scanning mode or a multiple beam parallel scanning mode; and the beam scanning mode included in the second beam information is a single beam scanning mode or a multiple beam parallel scanning mode.

Optionally, the receiving module is further configured to: before receiving the downlink signal that is sent by the base station by using the first beam information, receive capability information of the serving cell that is sent by the base station by using the first beam information, and capability information of the neighboring cell; Said The capability information of the serving cell includes at least one of the following: a mapping relationship between a beam type and a delay level supported by the serving cell, and a mapping relationship between a beam scanning mode and a delay level supported by the serving cell, The capability information of the neighboring cell includes at least one of the following: a mapping relationship between a beam type and a delay level supported by the neighboring cell, and a mapping relationship between a beam scanning mode and a delay level supported by the neighboring cell. .

Exemplarily, the terminal device further includes a processing module, where the processing module is specifically configured to: according to a delay level of the current service and capability information of the serving cell, when the base station is a base station to which the serving cell belongs Determining, by the second beam information, the first indicator information is sent to the base station according to the second beam information; the first indication information includes: the second beam information or the second beam information And the processing module is configured to determine the second beam information according to a delay level of the current service and capability information of the neighboring cell, where the base station is a base station to which the serving cell belongs; The sending module is configured to send the first indication information to the base station according to the second beam information, where the first indication information includes: an identifier of the second beam information or the second beam information.

Optionally, the processing module is configured to: when the measurement result of the downlink signal is less than or equal to the first preset threshold, instruct the sending module to send the first indication information to the base station.

Optionally, the terminal device is a terminal device that is performing cell camping; the terminal device further includes a processing module, where the processing module is further configured to receive, by the receiving module, the second beam by the base station After the downlink signal is sent by the information, when the measurement result of the downlink signal is greater than the first preset threshold, the random access procedure is performed with the base station; and the sending module is configured to send the second to the base station Instructing information, the second indication information is used to indicate that the base station stops using the second beam information to send the downlink signal, and the second indication information includes: the identifier of the first beam information or the first beam information; The receiving module is further configured to continue to receive the downlink signal that is sent by the base station by using the first beam information, and the sending module is further configured to: when the measurement result of the downlink signal is less than a second preset threshold, Sending the first indication information to the base station again.

Optionally, the terminal device is a terminal device that performs cell handover, and the base station is a base station where the serving cell is located; the sending module is further configured to receive, by the receiving module, the second beam by using the second antenna After the downlink signal is sent by the information, the measurement result of the downlink signal is reported to the base station; the receiving module is further configured to: when the measurement result meets a cell handover condition, receive a handover command sent by the base station; The handover command is used to indicate that the terminal device accesses a target cell.

Optionally, the terminal device is a terminal device that performs cell handover, where the base station is a base station where the target cell is located, and the sending module is configured to: when the measurement result of the downlink signal is less than a first preset threshold, The base station where the target cell is located sends the first indication information.

For the beneficial effects of the terminal device provided by the foregoing third aspect and the possible implementation manners of the third aspect, reference may be made to the beneficial effects brought by the first aspect and the possible implementation manners of the first aspect, and no longer Narration.

A fourth aspect of the present application provides a base station, including: a sending module, configured to send, by using a first beam information, a downlink signal to a terminal device, and a receiving module, configured to receive first indication information sent by the terminal device, where the An indication information is used to indicate that the base station sends the downlink signal to the terminal device by using the second beam information, and the sending module is further configured to send the downlink signal to the terminal device by using the second beam information.

Optionally, the first beam information and the second beam information are different in at least one of a beam type and a beam scanning manner; the first beam information includes a beam type that is a first beam type or a first beam type a second beam type; the second beam information includes a beam type of a first beam type or a second beam type, wherein the second beam The transmission angle of the beam corresponding to the type is smaller than the transmission angle of the beam corresponding to the first beam type; the beam scanning mode included in the first beam information is a single beam scanning mode or a multiple beam parallel scanning mode; the second beam The beam scanning mode included in the information is a single beam scanning method or a multi beam parallel scanning method.

Optionally, the sending module is further configured to: before using the first beam information to send the downlink signal to the terminal device, use the first beam information to send the capability information of the serving cell and the capability information of the neighboring cell to the terminal device; the service The capability information of the cell includes at least one of the following: a mapping relationship between a beam type and a delay level supported by the serving cell, a mapping relationship between a beam scanning mode and a delay level supported by the serving cell, and the phase The capability information of the neighboring cell includes at least one of the following: a mapping relationship between a beam type and a delay level supported by the neighboring cell, and a mapping relationship between a beam scanning mode and a delay level supported by the neighboring cell.

Illustratively, when the base station is a base station to which the serving cell belongs, the first indication information includes: the terminal device determining, according to a delay level of a current service and capability information of the serving cell, The second beam information or the identifier of the second beam information; the sending module is specifically configured to use the second device determined by the terminal device according to a delay level of the current service and capability information of the serving cell And transmitting, by the beam information, the downlink signal to the terminal device; when the base station is a base station to which the neighboring cell belongs, the first indication information includes: a delay level and a location of the terminal device according to the current service The identifier of the second beam information or the second beam information determined by the capability information of the neighboring cell; the sending module is specifically configured to adopt, according to the delay level of the current service, the terminal device The second beam information determined by the capability information of the neighboring cell sends the downlink signal to the terminal device.

Optionally, the sending module is configured to send the downlink signal to the terminal device by using the preset second beam information.

Optionally, the terminal device further includes: a processing module, where the processing module is configured to determine, according to location information of the terminal device, a coverage range corresponding to the second beam information; And transmitting, by the second beam information, the downlink signal to the terminal device in a coverage area corresponding to the second beam information. Optionally, the first indication information includes: a coverage area corresponding to the first beam information; and the processing module is specifically configured to use a coverage range corresponding to the first beam information as the second beam information. Corresponding coverage; the sending module is configured to send the downlink signal to the terminal device by using the second beam information in a coverage area corresponding to the second beam information. Optionally, the processing module is configured to determine, by using the measurement of the first indication information, a coverage area corresponding to the first beam information, and use the coverage area corresponding to the first beam information as the a coverage area corresponding to the second beam information, where the sending module is configured to send the downlink signal to the terminal device by using the second beam information in a coverage area corresponding to the second beam information.

Optionally, the receiving module is configured to receive first indication information that is sent by the terminal device when the measurement result of the downlink signal is less than or equal to a first preset threshold.

Optionally, the terminal device is a terminal device that is performing cell camping; the processing module is further configured to: after the sending module sends the downlink signal to the terminal device by using the second beam information, Performing a random access procedure with the terminal device; the receiving module is configured to receive second indication information that is sent by the terminal device, where the second indication information is used to indicate that the base station stops using the second beam information to send the And the second indication information includes: the identifier of the first beam information or the first beam information.

Optionally, the terminal device is a terminal device that performs cell handover, where the base station is a serving cell. Base station

The receiving module is further configured to: after the transmitting module sends the downlink signal to the terminal device by using the second beam information, receive a measurement result of the downlink signal reported by the terminal device; The module is further configured to: when the measurement result meets a cell handover condition, send a handover command to the terminal device; the handover command is used to instruct the terminal device to initiate a random access procedure to a base station where the target cell is located. In this implementation, the sending module is further configured to: after the receiving module receives the first indication information sent by the terminal device, send the first indication information to the base station where the target cell is located.

For the beneficial effects of the base station provided by the foregoing fourth aspect and the possible implementation manners of the fourth aspect, reference may be made to the beneficial effects brought by the foregoing first aspect and the possible implementation manners of the first aspect, and details are not described herein again. .

A fifth aspect of the embodiments of the present application provides a terminal device, where the terminal device includes a processor and a memory, where the processor and the memory are connected by a bus; wherein the memory is used to store computer executable program code, where The program code includes instructions that, when executed by the processor, cause the terminal device to perform the method provided by the first aspect of the present application.

A sixth aspect of the embodiments of the present application provides a base station, where the base station includes a processor and a memory, where the processor and the memory are connected by a bus; wherein the memory is used to store computer executable program code, the program The code includes instructions that, when executed by the processor, cause the base station to perform the method provided by the second aspect of the present application.

A seventh aspect of the embodiments of the present application provides a terminal device, including at least one processing element (or chip) for performing the method of the above first aspect.

An eighth aspect of the embodiments of the present application provides a base station, comprising at least one processing element (or chip) for performing the method of the above second aspect.

A ninth aspect of the embodiments of the present application provides a program for performing the method of the above first aspect when executed by a processor.

A tenth aspect of the embodiments of the present application provides a program product, such as a computer readable storage medium, comprising the program of the ninth aspect.

An eleventh aspect of the embodiments of the present application provides a program for performing the method of the above second aspect when executed by a processor.

A twelfth aspect of the embodiments of the present application provides a program product, such as a computer readable storage medium, including the program of the eleventh aspect.

The terminal device mobility processing method, the terminal device, and the base station provided by the embodiment of the present application, when the base station sends the downlink signal for the terminal device to perform mobility management to the terminal device by using the first beam information, the terminal device may send the An indication information, so that the base station can retransmit the downlink signal to the terminal device by using the second beam information. That is, the base station can transmit the downlink signal applicable to the terminal device to the terminal device in a targeted manner according to the requirements of the terminal device, and increase the manner in which the base station sends the downlink signal to the terminal device, which satisfies the requirements of different terminal devices.

DRAWINGS

FIG. 1 is an application scenario diagram provided by an embodiment of the present application;

2 is a schematic diagram 1 of a beam scanning method according to an embodiment of the present application;

FIG. 3 is a second schematic diagram of a beam scanning manner according to an embodiment of the present disclosure;

FIG. 4 is a signaling flowchart of a method for processing mobility of a terminal device according to an embodiment of the present disclosure;

FIG. 5 is a signaling flowchart of another method for processing mobility of a terminal device according to an embodiment of the present disclosure;

FIG. 6 is a signaling flowchart of still another method for processing mobility of a terminal device according to an embodiment of the present disclosure;

FIG. 7 is a signaling flowchart of still another method for processing mobility of a terminal device according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of a base station according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of another base station according to an embodiment of the present application;

FIG. 12 is a block diagram showing a partial structure of a terminal device when the terminal device is a mobile phone according to an embodiment of the present disclosure.

detailed description

In the embodiment of the present application, "a plurality" means two or more. "and/or", describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately. The character "/" generally indicates that the contextual object is an "or" relationship.

The terminal device involved in the embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem. The wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal. For example, it may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA), etc. . A wireless terminal may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, or an access point. Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.

The base station involved in the embodiment of the present application may be configured to convert a received air frame and an IP packet into a router between the wireless terminal and the rest of the access network, where the rest of the access network may include an internet protocol. (IP) network. The base station can also coordinate attribute management of the air interface. For example, the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE. This application is not limited.

With the continuous development of communication technologies, the existing wireless spectrum resources can no longer meet the needs of users in actual use. Therefore, in future 5G communication systems, base stations and terminal devices can communicate using high-frequency signals, that is, base stations The downlink signal sent by the terminal device and the uplink signal sent by the terminal device to the base station are all high frequency signals.

FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application. As shown in FIG. 1 , since the attenuation of the high-frequency signal in the transmission process is relatively large, in order to improve the coverage of the cell, in the future 5G communication system, the base station and the terminal device may be sent by beamforming. High frequency signal. The beamforming described here is an antenna array-based signal pre-processing technique, that is, beamforming can generate a directional beam by adjusting the weighting coefficients of each array element in the antenna array, thereby obtaining a distinct array. Gain. Therefore, the base station and the terminal device adopt the beam forming side. When the high frequency signal is transmitted, the coverage of the cell can be expanded, and the throughput of the cell edge can be improved.

FIG. 2 is a schematic diagram 1 of a beam scanning manner according to an embodiment of the present application. FIG. 3 is a schematic diagram 2 of a beam scanning manner according to an embodiment of the present application. As shown in FIG. 2 and FIG. 3, when the base station broadcasts a downlink signal for terminal device mobility management in a beamforming manner, the base station can use the single ticket shown in FIG. 2 on the scanning subframe of the radio frame. The downlink signal is broadcasted by the beam scanning method, and the downlink signal can also be broadcasted by the multi-beam parallel scanning method shown in FIG. The scanning subframe is a wireless subframe for transmitting a downlink signal for terminal device mobility management, and the scanning subframe may be one wireless subframe or multiple wireless subframes.

As shown in FIG. 2, when the base station uses the single-beam scanning mode to transmit the downlink signal on the scanning subframe, the base station may use one beam to send the downlink signal to one direction of the serving cell on each symbol of the scanning subframe. Then, the base station continues to transmit the downlink signal to the other direction of the serving cell by using one beam on the next symbol after the symbol, until the downlink signal sent by the base station can cover the entire serving cell. Since the width of one beam is in one-to-one correspondence with the coverage of the beam on the serving cell, the width of one beam used by the base station may be specifically determined according to the coverage of the serving cell and/or the number of symbols of the scanned subframe.

As shown in FIG. 3, when the base station transmits the downlink signal on the scanning subframe by using the multi-beam parallel scanning mode, the base station may use multiple beams to send the downlink to multiple directions of the serving cell on each symbol of the scanning subframe. signal. Then, the base station continues to use the multiple beams to transmit the downlink signal to other multiple directions of the serving cell on the next symbol after the symbol, until the downlink signal sent by the base station can cover the entire serving cell or a part of the serving cell. The multiple beams used by the base station at one time may be multiple adjacent beams, or may be multiple non-adjacent beams (ie, any two beams are not adjacent, or only partial beams are adjacent, and other parts are Beams are not adjacent, etc.). 3 is a schematic diagram of a base station transmitting downlink signals to four adjacent directions of a serving cell using four adjacent beams on each symbol of a scanned subframe.

According to the above description, the base station adopts the multi-beam parallel scanning mode to transmit the downlink signal and the single-beam scanning mode to transmit the downlink signal, and the multi-beam parallel scanning mode to transmit the downlink signal improves the efficiency of the base station broadcasting the downlink signal on the entire serving cell. , reducing the delay of broadcasting the downlink signal. However, since the base station transmits the downlink signal by using the multi-beam parallel scanning method, multiple signals are used to transmit the downlink signal on each symbol, so that the power consumption of the base station is large.

At the same time, the base station may use the multi-beam parallel scanning mode to transmit the downlink signal, or when the single-beam scanning mode is used to transmit the downlink signal, the base station may also use different width beams (ie, different beam types). When the base station uses a wider beam to transmit the downlink signal, the base station can cover the coverage of the entire serving cell by using a smaller number of beams, thereby reducing the signaling overhead of the base station. However, when a base station transmits a signal with a wider beam, the coverage of the beam (ie, the length of the cell antenna) is smaller than the coverage of the narrower beam, so that the signal received by the terminal device located at the edge of the cell coverage is received. The strength of the terminal device is reduced, which in turn reduces the probability that the terminal device successfully receives the downlink signal.

In view of the above, the method for processing mobility of a terminal device provided by the embodiment of the present application is to solve the technical problem of how a base station in a cell using a high frequency signal sends a downlink signal to a terminal device.

The technical solutions of the present application are described in detail below with specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.

FIG. 4 is a signaling flowchart of a method for processing mobility of a terminal device according to an embodiment of the present disclosure. The embodiment relates to how the base station sends the downlink signal to the terminal device when the first beam information is used by the base station. The specific process of sending the downlink signal to the terminal device by using the second indicator information. As shown in FIG. 4, the method includes:

S101. The base station sends the downlink signal to the terminal device by using the first beam information.

Specifically, the base station and the terminal device are base stations and terminal devices that communicate by means of high-frequency signals and adopt beamforming. In this embodiment, the base station currently uses the first beam information to send a downlink signal to the terminal device. The downlink signal may be a downlink signal used for mobility management of the terminal device, that is, based on the measurement of the downlink signal by the terminal device, the mobile behavior such as cell camping, cell reselection, and cell handover may be determined. The downlink signal may be, for example, any one of the following: a synchronization channel, a Beamforming Reference Signal (BRS), a channel state information reference signal, and the like.

The first beam information may include beam-related information, such as beam type and/or beam scanning mode, beam index or beam identification, and the like. The beam type mentioned herein may include, for example, any one of a first beam type and a second beam type, wherein a beam angle corresponding to a beam size of the second beam type is smaller than a beam angle of a beam corresponding to the first beam type, that is, a The beam corresponding to the two beam types is narrower than the beam corresponding to the first beam type. The beam scanning method referred to herein may include, for example, any one of a single beam scanning method and a multi beam parallel scanning method. It should be noted that, when the first beam information includes only the beam type, the beam scanning mode of the first beam information may be a preset beam scanning mode, when the first beam information only includes the beam scanning mode. The beam type involved in the foregoing first beam information may be a preset beam type.

Optionally, in another implementation manner of the embodiment of the present application, the first beam information may include: downlink signal transmission power and/or downlink signal transmission period, and the like. The beam type is related to the downlink signal transmission power, that is, the transmission powers of the beams of different widths are different, and thus the transmission power of the downlink signals transmitted by the beams of different widths is different. The beam scanning mode is related to the downlink signal transmission period. That is, in different scanning modes, the interval lengths at which the base station sends the downlink signals in the same direction are different. Therefore, the transmission periods of the downlink signals transmitted by using different scanning modes are different. It should be noted that, when the first beam information includes only the downlink signal transmission power, the downlink signal transmission period involved in the first beam information may be a preset downlink signal transmission period, when the first beam information only includes During the downlink signal transmission period, the downlink signal transmission power involved in the first beam information may be a preset downlink signal transmission power.

S102. The terminal device receives the downlink signal.

S103. The terminal device sends the first indication information to the base station according to the downlink signal that is sent by using the first beam information.

Specifically, after receiving the downlink signal sent by the base station by using the first beam information, the terminal device may send the first indication information to the base station according to the downlink signal sent by using the first beam information, to indicate that the base station uses the second beam information. The downlink signal is sent to the terminal device. The second beam information may be beam information different from the first beam information.

Optionally, when the first beam information includes a beam type and/or a beam scanning mode, the second beam information may be different from a beam type and/or a beam scanning mode included in the first beam information. That is, the second beam information may be different from the beam type carried in the first beam information. Alternatively, the second beam information is different from the beam scanning mode carried in the first beam information. Alternatively, the second beam information may be different from the beam type and the beam scanning mode carried in the first beam information. The embodiment does not limit how the terminal device instructs the base station to use the second indicator information to send the downlink signal to the terminal device by using the first indication information. For example, the foregoing terminal device may carry the beam type and/or the beam scanning manner included in the second beam information in the first A manner of indicating information to instruct the base station to use the second beam information to send the downlink signal to the terminal device. The terminal device may further include the index information of the beam type and/or the index information of the beam scanning mode included in the second beam information in the first indication information, to indicate that the base station sends the downlink to the terminal device by using the second beam information. signal. The terminal device may further carry the index information of the second beam information in the first indication information, to indicate that the base station sends the downlink signal or the like to the terminal device by using the second beam information.

Optionally, when the first beam information includes a downlink signal transmission power and/or a downlink signal transmission period, the second beam information may be sent with the downlink signal transmission power and/or the downlink signal included in the first beam information. The cycle is different. That is, the second beam information is different from the downlink signal transmission power carried in the first beam information. Alternatively, the second beam information is different from the downlink signal transmission period carried in the first beam information. Alternatively, the second beam information and the downlink signal transmission power and the downlink signal transmission period carried in the first beam information are different.

S104. The base station receives the first indication information.

S105. The base station sends the downlink signal to the terminal device by using the second beam information.

Specifically, after receiving the first indication information sent by the terminal device, the base station may retransmit the downlink signal to the terminal device by using the second beam information according to the first indication information, so that the terminal device can receive the used by the base station. The downlink signal sent by the second beam information.

Taking the beam type included in the first beam information and the second beam information as an example, the first beam information includes a first beam type, and the second beam information includes a second beam type. The transmit angle of the beam corresponding to the second beam type is smaller than the transmit angle of the beam corresponding to the first beam type. That is, the beam corresponding to the second beam type is narrower than the beam corresponding to the first beam type. At this time, since the strength of the signal transmitted by the base station using the narrower beam is higher, even if the base station uses the same transmission power, the signal received by the terminal at a certain position is higher than the wider beam due to the beam directivity gain. Therefore, the signal strength of the base station when transmitting the downlink signal by using the second beam type is higher than that when the downlink signal is transmitted by using the first beam type, thereby improving the probability that the terminal device successfully receives the downlink signal. Correspondingly, if the first beam information includes the second beam type, and the first beam information includes the first beam type, in this case, since the base station transmits the downlink signal by using the first beam type, a smaller number may be used. The beam transmits a downlink signal to the entire serving cell. Therefore, the signaling overhead when the base station transmits the downlink signal by using the first beam type is lower than the signaling overhead when the downlink signal is sent by using the second beam type, and the base station's signaling is reduced. Make the cost.

For example, the first beam information is different from the beam scanning mode included in the second beam information, and the first beam information includes a single beam scanning mode, and the second beam information includes a multi-beam parallel scanning mode. At this time, when the base station transmits the downlink signal by using the multi-beam parallel scanning mode, the base station can send the downlink signal to the serving cell in multiple directions at a time, so that the time for the terminal device to receive the downlink signal sent by the base station is shortened, and the time is improved. The efficiency of receiving the downlink signal by the terminal device reduces the delay of the terminal device receiving the downlink signal. Correspondingly, if the first beam information includes the multi-beam parallel scanning mode, and the second beam information includes the single beam scanning mode, in this case, since the base station can send the downlink signal to one direction of the serving cell by using only one beam at a time, Therefore, the power consumption of the base station can be reduced.

Taking the beam type and the beam scanning mode included in the first beam information and the second beam information as an example, assuming that the first beam information includes a first beam type and a single beam scanning mode, and the second beam information includes a second beam type. And multi-beam parallel scanning. In this case, when the base station transmits the downlink signal by using the second beam type, the signal strength is higher than when the downlink signal is transmitted by using the first beam type, and the base station transmits the downlink signal by using the multi-beam parallel scanning mode. The time for the terminal device to receive the downlink signal sent by the base station is shortened, so that not only can The probability of the terminal device successfully receiving the downlink signal is improved, and the efficiency of the terminal device receiving the downlink signal is also improved, and the delay of the terminal device receiving the downlink signal is reduced.

For the case where the downlink signal transmission power and/or the downlink signal transmission period included in the first beam information and the second beam information are different, since the beam type and the downlink signal transmission power are in one-to-one correspondence, the beam scanning mode and the downlink signal transmission period are one. A correspondence. Therefore, the base station uses the second beam information to send the downlink signal to the terminal device. For details, refer to the beam type and/or beam scanning mode included in the foregoing first beam information and second beam information. At the same time, the beneficial effects of the downlink signal sent by the base station are not described herein.

In this way, the base station can send the downlink signal to the terminal device by using different beam information according to the first indication information sent by the terminal device. That is, the base station can transmit the downlink signal applicable to the terminal device to the terminal device in a targeted manner according to the requirements of the terminal device, so as to prevent the terminal device from using a beam information to transmit the downlink signal to all the terminal devices of the serving cell, causing some terminal devices to be generated. There is a case where the signal cannot be correctly received or the signal received by the terminal device cannot satisfy the delay, or the overhead of the base station and the hardware cost increase.

S106. The terminal device receives the downlink signal.

Specifically, after receiving the downlink signal sent by the base station by using the second beam information, the terminal device may perform a mobile behavior decision such as cell camping, cell reselection, and cell handover based on the measurement of the downlink signal.

It can be understood that the embodiment of the present application is described by taking two different beam information as an example, and also supports more beam information.

The method for processing the mobility of the terminal device provided by the embodiment of the present application, when the base station sends the downlink signal for the mobility management of the terminal device to the terminal device by using the first beam information, the terminal device may send the first indication information to the base station, The base station can use the second beam information to retransmit the downlink signal to the terminal device. That is, the base station can transmit the downlink signal applicable to the terminal device to the terminal device in a targeted manner according to the requirements of the terminal device, and increase the manner in which the base station sends the downlink signal to the terminal device, which satisfies the requirements of different terminal devices.

FIG. 5 is a signaling flowchart of another method for processing mobility of a terminal device according to an embodiment of the present disclosure. The embodiment relates to a specific process in which the base station sends the capability information of the serving cell and the capability information of the neighboring cell to the terminal device before the base station sends the downlink signal to the terminal device by using the first beam information. As shown in FIG. 5, on the basis of the foregoing embodiment, before the foregoing S101, the method includes:

S201. The base station sends the capability information of the serving cell and the capability information of the neighboring cell to the terminal device by using the first beam information.

The capability information of the serving cell may include at least one of the following types: a beam type and a delay supported by the serving cell, when the first beam information and the second beam information include a beam type and/or a beam scanning mode. The mapping relationship between the level of the mapping, the beam scanning mode supported by the serving cell, and the delay level, or only the mapping between the beam scanning mode and the delay level supported by the serving cell, may be determined according to the system configuration. The capability information of the foregoing neighboring cell may include at least one of the following: a mapping relationship between a beam type and a delay level supported by the neighboring cell, and a mapping relationship between a beam scanning mode and a delay level supported by the neighboring cell, Can be determined according to the system configuration.

When the first beam information and the second beam information include: a downlink signal transmission power and/or a downlink signal transmission period, the capability information of the serving cell may include at least one of the following information: a downlink signal transmission power supported by the serving cell. The mapping relationship with the delay level, the mapping relationship between the downlink signal transmission period and the delay level supported by the serving cell, or only the mapping relationship between the downlink signal transmission period and the delay level supported by the serving cell, specifically Determined according to system configuration. The capability information of the foregoing neighboring cell may include at least one of the following: a mapping relationship between a downlink signal transmission power and a delay level supported by the neighboring cell, and a mapping of a downlink signal transmission period and a delay level supported by the neighboring cell. Relationships can be determined based on system configuration.

Specifically, in this embodiment, before the base station sends the downlink signal to the terminal device by using the first beam information, the base station may first send the capability information of the serving cell and the capability information of the neighboring cell to the terminal device by using the first beam information. Optionally, the base station may use the first beam information to send the capability information of the serving cell and the capability information of the neighboring cell to the terminal device by using Radio Resource Control (RRC) signaling. The base station may also use the first beam information to send the capability information of the serving cell and the capability information of the neighboring cell to the terminal device by using a broadcast message. The base station may also use the first beam information to send one of the foregoing capability information to the terminal device through RRC signaling, and send another capability information to the terminal device or the like through the broadcast message. The present embodiment does not limit how the base station acquires the capability information of the neighboring cell. For example, the base station may interact with the base station to which the other cell belongs by using the interface between the base stations to obtain capability information of other cells.

S202. The terminal device receives capability information of the serving cell and capability information of the neighboring cell.

Specifically, after receiving the capability information of the serving cell and the capability information of the neighboring cell sent by the base station, the terminal device may be based on the delay level of the current service, and the capability information of the serving cell or the capability information of the neighboring cell. And determining, by the terminal device, which downlink information is sent by using the beam information, so that the base station can send the downlink signal by using beam information that is adapted to the terminal device.

When the base station is the base station to which the serving cell belongs, the terminal device may determine the second beam information according to the delay level of the current service of the terminal and the capability information of the serving cell, before the base station sends the first indication information, so that the terminal device can When the first indication information is sent to the base station according to the second beam information, the identifier of the second beam information or the second beam information (for example, index information, a preset number indicating the second beam information, etc.) may be carried in the first The indication information is sent to the base station to instruct the base station to send the downlink signal to the terminal device by using the second beam information. After receiving the first indication information sent by the terminal device, the base station may use the second beam information determined by the terminal device according to the delay level of the current service to send the downlink signal to the terminal device again, so that the terminal device receives the downlink. The delay of the signal can meet the needs of the current service of the terminal device.

When the base station is the base station to which the neighboring cell belongs, that is, the base station to which the cell currently serving the terminal device belongs, the terminal device may, according to the delay level and phase of the current service of the terminal itself, before transmitting the first indication information to the base station. The capability information of the neighboring cell determines the second beam information, so that the terminal device can send the first indication information to the base station according to the second beam information, and the identifier of the second beam information or the second beam information (for example, index information, The preset number indicating the second beam information, etc., is carried in the first indication information and sent to the base station, to instruct the base station to use the second beam information to send the downlink signal to the terminal device. After receiving the first indication information sent by the terminal device, the base station may use the second beam information determined by the terminal device according to the delay level of the current service to send the downlink signal to the terminal device again, so that the terminal device receives the downlink. The delay of the signal can meet the needs of the current service of the terminal device.

Optionally, in another implementation manner of the embodiment of the present application, if the base station and the terminal device have restricted the second beam information, the base station may not send the downlink signal to the terminal device before using the first beam information. The device sends capability information of the serving cell and capability information of the neighboring cell. In this way, after receiving the first indication information sent by the terminal device, the base station can directly retransmit the downlink signal to the terminal device by using the preset second beam information, so that the terminal device receives the second beam information transmission. When the downlink signal is received, the terminal device receives the downlink signal The delay can still meet the requirements of the current service of the terminal device. While satisfying the delay requirement of the terminal device, the signaling interaction between the terminal device and the base station can be reduced, and the communication efficiency is improved.

Optionally, in another implementation manner of the embodiment of the present application, the terminal device may further send the capability information of the terminal device to the base station. The capability indication information of the terminal device is used to indicate to the base station beam information supported by the terminal device, such as a beam type, a beam scanning mode, a downlink signal sending power, a downlink signal scanning period, and the like. In this way, after receiving the capability information sent by the terminal device, the base station can select the beam information that is adapted to the terminal device according to the capability information of the terminal device and the current wireless condition of the terminal device, and send the downlink signal to the terminal device, so that The terminal device can correctly receive the downlink signal, which improves the success rate of the terminal device receiving the downlink signal.

The method for processing the mobility of the terminal device provided by the embodiment of the present application, before the base station sends the downlink signal for the mobility management of the terminal device to the terminal device by using the first beam information, the base station may send the capability information of the serving cell to the terminal device, And the capability information of the neighboring cell, so that the terminal device can determine the second beam information to be used by the base station according to the delay level of the current service and the capability information of the cell corresponding to the base station, and the second beam information is used. The information is sent to the base station in the first indication information, so that the base station can retransmit the downlink signal to the terminal device by using the second beam information, so that the delay of the terminal device when receiving the downlink signal can meet the current service of the terminal device. demand.

The method for processing the mobility of the terminal device provided by the embodiment of the present application will be described below with reference to a few specific examples.

Example 1. A terminal device is a terminal device (ie, a terminal device in an Idle state) in which a cell resides. FIG. 6 is a signaling flowchart of still another method for processing mobility of a terminal device according to an embodiment of the present disclosure. In this example, the first beam information includes a first beam type and the second beam information includes a second beam type. That is, the transmission angle of the beam corresponding to the second beam type is smaller than the transmission angle of the beam corresponding to the first beam type. That is to say, the beam corresponding to the second beam type is narrower than the beam corresponding to the first beam type. The downlink signal is BRS. The embodiment relates to a specific process of how the base station sends the downlink signal to the terminal device by using the second beam information according to the first indication information sent by the terminal device. As shown in FIG. 6, the method includes:

S301. The base station sends the BRS to the terminal device by using the first beam information.

Specifically, in this example, the base station currently uses the first beam information to send the BRS to the terminal device. The first beam type included in the first beam information corresponds to a wider beam. The wider the beam, the larger the coverage of the beam. Therefore, when the base station transmits the BRS by using the first beam type, the base station can cover the coverage of the entire serving cell by using a smaller number of beams, thereby reducing the signaling overhead of the base station.

S302. The terminal device receives the BRS.

S303. The terminal device sends the first indication information to the base station according to the BRS that is sent by using the first beam information.

Specifically, in this embodiment, the terminal device may send the first indication information to the base station when the measurement result of the BRS is less than or equal to the first preset threshold. The first preset threshold is used to determine whether the current cell meets the camping condition. Therefore, the first preset threshold may be specifically determined according to a threshold value of any measurement parameter of the cell reference signal. For example, the first preset threshold may be a threshold value of a reference signal receiving power (RSRP), and the first preset threshold may also be a reference signal receiving quality (Reference Signal Receiving Quality, Abbreviation: RSRQ) threshold value, etc.

In this way, after the terminal device in the Idle state receives the BRS transmitted by the base station using the first beam information, the terminal device can measure the BRS by using an existing measurement manner. If the measurement result of the BRS is greater than the first preset threshold, It indicates that the BRS signal currently received by the terminal device is relatively high or the quality is good, that is, the current cell satisfies the camping condition. At this time, the terminal device may select the cell to camp, that is, the terminal device may directly initiate a cell resident procedure to the base station. If the measurement result of the BRS is less than or equal to the first preset threshold, it indicates that the BRS signal currently received by the terminal device is weak or the quality is relatively poor, and the condition of the cell camp cannot be met. At this time, the terminal device may send the first indication information to the base station to instruct the base station to use the second beam information to retransmit the BRS to the terminal device, that is, to transmit the BRS again by using a beam narrower than the beam corresponding to the current beam type. The narrower the beam, the higher the transmit power of the beam. Therefore, in this manner, when the base station transmits the BRS by using a wider beam, the strength of the BRS is weak due to the wider beam, so that the measurement result of the BRS by the terminal device cannot meet the condition of the cell camping, resulting in the terminal. The condition that the device cannot reside.

It should be noted that, the embodiment does not limit when the terminal device sends the first indication information to the base station, for example, the terminal device may send the base station to the base station immediately after determining that the measurement result of the BRS is less than or equal to the first preset threshold. First indication information. The terminal device may continue to measure the BRS sent by the base station for a preset duration. If the BRS measurement result is still less than the first preset threshold when the preset duration is reached, the first indication information is sent to the base station. The terminal device may further send the first indication information and the like to the base station before the random access procedure needs to be performed.

Optionally, if the terminal device can receive the BRS signal sent by the base station, the terminal device can receive the BRS signal sent by the base station to which the other cell belongs. However, the terminal device currently measures the BRS signal sent by the base station to which the multiple cells belong, and determines that the multiple cells do not satisfy the camping condition. At this time, the terminal device may send the first indication information by means of a broadcast, so that the current base station and the base station to which the other cell belongs can receive the first indication information, so that the base station can adopt the second beam information. The BRS of the cell under its jurisdiction is transmitted to the terminal device. At this time, the second beam information may be a preset beam information on all base stations.

Optionally, the terminal device may further send the first indication information only to the foregoing base station. At this time, if the terminal device receives the capability information of the serving cell and the capability information of the neighboring cell sent by the base station before receiving the BRS sent by the base station by using the first beam information, the terminal device may further determine the delay level of the current service according to the delay level of the current service. And the capability information of the current cell, the second beam information is determined, and the index information of the second beam information or the second beam information is carried in the first indication information and sent to the base station. If the terminal device does not receive the capability information of the serving cell and the capability information of the neighboring cell sent by the base station before receiving the BRS sent by the base station by using the first beam information, the first indication information sent by the terminal device to the base station may be used for indicating The second beam information used by the base station sends the BRS to the terminal device.

S304. The base station receives the first indication information.

S305. The base station sends the BRS to the terminal device by using the second beam information.

Specifically, after receiving the first indication information, if the first indication information carries the second beam information or the index information of the second beam information determined by the terminal according to the delay level of the current service, the base station may The BRS is sent to the terminal device by using the second beam information corresponding to the determined second beam information or the index information of the second beam information. If the first indicator information does not carry the index information of the second beam information or the second beam information, the base station may send the BRS to the terminal device by using the preset second wave speed information.

Optionally, the foregoing base station may use the beam type in the second beam information and the original beam scanning mode to send the BRS within the coverage of the serving cell. Optionally, the foregoing base station may further send the BRS in the coverage of the serving cell by using the first beam information while transmitting the BRS in the coverage of the serving cell by using the second beam information. The time and/or the transmission period for transmitting the BRS by using the first beam information and the second beam information may be different.

Optionally, the foregoing base station may determine the location information of the terminal device in an existing manner, so that the base station may determine, according to the location information of the terminal device, a coverage range corresponding to the second beam information (ie, an area where the terminal device is located). After determining the coverage corresponding to the second beam information, the base station may directly send the BRS (ie, the downlink signal) to the terminal device in the coverage corresponding to the second beam information, and perform other coverage in the cell. In the range, the BRS is still sent by using the first beam information to reduce the signaling overhead of the base station.

Optionally, the base station may further determine, by using the measurement of the first indication information, a coverage area corresponding to the first beam information, and use a coverage area corresponding to the first beam information as a coverage area corresponding to the second beam information. After determining the coverage corresponding to the second beam information, the base station may directly send the BRS (ie, the downlink signal) to the terminal device in the coverage corresponding to the second beam information, and perform other coverage in the cell. Within the scope, the BRS is still transmitted using the first beam information. The above-mentioned base station determines the coverage of the first beam information by using the measurement of the first indication information. For details, refer to the prior art.

Optionally, if the foregoing first indication information includes a coverage area corresponding to the first beam information, the base station may use the coverage area corresponding to the first beam information as the coverage corresponding to the second beam information after receiving the first indication information. The range, and further, the second beam information is used to send the BRS to the terminal device in the coverage area corresponding to the second beam information, and the BRS is still sent by using the first beam information in other coverage areas of the cell.

S306. The terminal device receives the BRS.

S307. The terminal device performs a random access procedure with the base station when the measurement result of the BRS is greater than the first preset threshold.

Specifically, after the terminal device receives the BRS sent by the base station by using the second beam information, if the terminal device determines that the measurement result of the BRS is greater than the first preset threshold by using the BRS measurement, the terminal device currently receives the BRS. The signal strength is relatively high or the quality is better, that is, the current cell satisfies the camping condition. At this time, the terminal device may select the cell to camp, that is, the terminal device may perform a cell camping process with the base station according to the system information of the cell (the cell resident process is a prior art, and details are not described herein again). The system information may be system information that is sent by the base station while transmitting the BRS by using the first beam information, and may also be system information that is sent by the base station while transmitting the BRS by using the second beam information. The system information may include information required for performing cell camping, for example, physical random access channel (Physical Random Access Channel, PRACH) resource configuration information, random preamble configuration information, and the like.

Optionally, in an implementation manner of the embodiment of the present application, the foregoing system information may further include: a beam type in the first beam information, a beam scanning mode, a beam sending period, a switching time of different beam types, and the like. one or more. In this way, when the terminal device needs to receive the BRS sent by the base station multiple times, the terminal device can estimate, according to the information, when the base station sends the BRS to the area where the terminal device is located, so that the terminal device can only The area sends the BRS to monitor the BRS, which improves the efficiency of the terminal device to obtain the BRS and reduces the power consumption of the terminal device. In another implementation manner of the embodiment of the present application, the base station may further indicate the beam type by using different BRSs, for example, by using one or more of different BRS sequences, time-frequency domain resources, beam identifiers, and the like. The beam type of the beam.

Optionally, the terminal device may send the second indication information to the base station, and the second indication information may include the identifier of the first beam information or the first beam information (for example, index information) The preset number indicating the first beam information is used to indicate that the base station stops transmitting the BRS (ie, the downlink signal) by using the second beam information. In this way, after receiving the second indication information, the base station may stop using the second beam information to send the BRS, and continue to use the first beam information to send the BRS in the coverage of the cell. Due to the first beam information The beam size corresponding to the first beam type is wider, and the beam is wider, and the coverage of the beam is larger. Therefore, when the base station transmits the BRS by using the first beam type, the base station can cover the whole by using a small number of beams. The coverage of the serving cell reduces the signaling overhead of the base station. In this way, after the cell is camped on, the terminal device can continue to receive the BRS (ie, the downlink signal) sent by the base station by using the first beam information in real time or periodically. When the measurement result of the BRS of the cell is smaller than the second preset threshold, the first indication information may be sent to the base station where the current cell is located and/or the base station where the neighboring cell is located, that is, the foregoing S303-S307 is re-executed. So that the terminal device can re-select the appropriate cell to camp based on the new measurement result.

The above example is a processing method of terminal device mobility as an example in which the first beam information and the second beam information include different beam types. However, it can be understood by those skilled in the art that when the first beam information and the second beam information include the beam type and the beam scanning mode, or only the beam scanning mode is included, the terminal device may also use the first beam information at the base station. When the BRS is sent, when the terminal device determines that the received BRS cannot meet the delay level of the current service, the terminal device may also trigger the base station to meet the current terminal device according to the current service delay level and the current cell capability information. The second beam information of the delay class of the service sends the BRS to the terminal device, so that the delay of the terminal device when receiving the downlink signal can meet the requirement of the current service of the terminal device.

It can be understood that the foregoing first indication information and the second indication information may also be the same message, where the message is used to indicate that the terminal device performs the switching of the beam information. For example, when the base station receives the indication information when using the first beam information, Switching to transmitting the downlink signal using the second beam information. When receiving the indication information when the second beam information is used, the base station switches to transmit the downlink signal by using the first beam information. The first indication information and the second indication information may also directly indicate the beam information used by the base station, for example, the first indication information includes first beam information, and the second indication information includes second beam information, so that the base station according to the first indication information Or the downlink information indicated by the second indication information is sent by the downlink information. For different terminal devices, the base station can transmit downlink signals using the same beam information or different beam information. For example, the terminal device 1 and the terminal device 2 both transmit the downlink signal using the first beam information, or transmit the downlink signal for the terminal device 1 using the first beam information, and transmit the downlink signal for the terminal device 2 using the second beam information.

It should be noted that the foregoing example shows a case where the base station triggers the base station to retransmit the BRS to the terminal device by using the second beam information according to the first indication information sent by the terminal device. It can be understood by those skilled in the art that the base station can directly decide whether to use the second beam information to send the BRS to the terminal device based on the measurement result of the uplink beam reference signal sent by the terminal device. When the base station determines that the second beam information needs to be used to send the BRS to the terminal device, the base station may directly send the BRS to the terminal device by using the second beam information, and may also send the indication information to the terminal device to instruct the terminal device to send the first indication information to the base station. In order to instruct the base station to use the second beam information to send the BRS to the terminal device, the implementation principle and the technical effect are similar to those in the foregoing embodiment, and details are not described herein again.

The terminal device mobility processing method provided by the embodiment of the present application, when the base station uses the first beam information to send the downlink signal for the terminal device to perform mobility management to the terminal device, the terminal device The first indication information may be sent to the base station when the measurement result of the downlink signal does not meet the cell camping condition, so that the base station may retransmit the second beam information that is narrower than the first beam information to the terminal device. The downlink signal is such that the terminal device can perform a cell camping process with the base station according to the measurement result of the downlink signal. In this way, the terminal device can trigger the base station to use different beam information to transmit the downlink signal based on the radio condition in which the terminal device is located, instead of the base station always transmitting the downlink signal in the coverage of the serving cell by using the narrower beam, thereby reducing the base station signal. The cost and the cost enable the terminal equipment with different wireless conditions to successfully complete the cell camping, thereby improving the success rate of the terminal equipment cell camping.

Example 2: A terminal device is a terminal device that is performing cell handover. FIG. 7 is a signaling flowchart of still another method for processing mobility of a terminal device according to an embodiment of the present disclosure. In this example, the first beam information includes a first beam type and a single beam scanning mode, and the second beam information includes a second beam type and a multi-beam scanning mode. The downlink signal is BRS. The embodiment relates to a specific process of how the base station sends the downlink signal to the terminal device by using the second beam information according to the first indication information sent by the terminal device. As shown in FIG. 7, the method includes:

S401. The base station sends the BRS to the terminal device by using the first beam information.

Specifically, in this example, the base station currently uses the first beam information to send the BRS to the terminal device. The beam corresponding to the first beam type included in the first beam information is wider, and the beam scanning mode included in the first beam information is a single beam scanning mode. The wider the beam, the larger the coverage of the beam. Therefore, when the base station transmits the BRS by using the first beam type, the base station can cover the coverage of the entire serving cell by using a smaller number of beams, thereby reducing the signaling overhead of the base station. At the same time, the beam scanning mode corresponding to the first beam information is a single beam scanning mode, that is, the base station transmits only one beam on one symbol of the scanning subframe, so that the power consumption of the base station is low.

S402. The terminal device receives the BRS.

S403. The terminal device sends the first indication information to the base station according to the BRS sent by using the first beam information.

Optionally, after the terminal device receives the BRS that is sent by the base station by using the first beam information, the terminal device may send the first indication information to the base station when the measurement result of the BRS is less than or equal to the first preset threshold. The first preset threshold is used to determine whether the terminal device needs to perform cell handover. Therefore, the foregoing first preset threshold may be specifically determined according to a threshold value of any measurement parameter of the cell reference signal. For example, the first preset threshold may be a threshold of a cell RSRP, and the first preset threshold may also be a threshold of a cell RSRQ. It should be noted that the size of the first preset threshold may be the same as the size of the first preset threshold in the first example, or may be different, and may be determined according to the cell handover condition and the cell camping condition.

In this way, after the terminal device receives the BRS sent by the base station by using the first beam information, the terminal device can measure the BRS by using an existing measurement manner. If the measurement result of the BRS is greater than the first preset threshold, the strength of the BRS signal currently received by the terminal device is relatively high or the quality is good, that is, the terminal device can still maintain the current cell without switching. That is to say, the terminal device does not currently satisfy the handover condition, and the terminal device can continue to monitor the BRS sent by the base station by using the first beam information. If the measurement result of the BRS is less than or equal to the first preset threshold, the strength of the BRS signal currently received by the terminal device is weak or the quality is relatively poor, indicating that the terminal device may have moved to the edge of the current cell, that is, the terminal device is close to proceeding. The condition of cell handover. At this time, the terminal device may determine, according to the delay level of the current service, and the capability information of the base station to which the current serving cell belongs, the BRS that needs to be received by the base station to use the second beam information. In this example, the second beam information includes: a second beam type and a multi-beam parallel scanning mode. In this way, the terminal device may send the first indication information that carries the second beam information to the base station, to indicate that the base station uses the second beam information to retransmit the BRS to the terminal device, and the terminal may further carry the beam index information to indicate that the base station uses the second beam. The information transmits the BRS to the terminal device in the specified one or more beams. That is, the BRS is transmitted again using a beam that is narrower than the beam corresponding to the current beam type, and a faster beam scanning mode (ie, a multi-beam parallel scanning mode). The narrower the beam, the higher the transmit power of the beam, and the multi-beam parallel scanning method to transmit the BRS, so that the terminal device can receive the BRS more quickly. Therefore, in this manner, the base station can use the first beam information to send the BRS to the terminal device before the terminal device satisfies the handover condition, so as to reduce the base station beam scanning overhead. When the terminal device approaches the cell handover condition, the triggering base station sends the BRS according to the second beam information, thereby facilitating the terminal device to obtain the BRS measurement result faster, so as to accelerate the process of the handover decision.

S404. The base station receives the first indication information.

S405. The base station sends the first indication information to a base station to which the target cell belongs.

Specifically, after receiving the first indication information, the base station determines that the second beam information needs to be used to send the BRS to the terminal device, and the base station may further send the first indication information to the base station where the one or more target cells are located, thereby The base station where the one or more target cells are located may use the second beam information to send the BRS of the one or more target cells to the terminal device. The base station may also carry beam index information to indicate that the base station where the target cell is located uses the second beam information to send the BRS to the terminal device in the specified one or more beams. In this way, the terminal device not only can quickly obtain the BRS of the current serving cell, but also can quickly obtain the BRS of the target cell, so that the terminal device can quickly obtain the BRS of the current serving cell and the BRS of the target cell. Speed up the cell switching of the terminal device.

S406. The base station sends the BRS to the terminal device by using the second beam information.

The base station sends the BRS to the terminal device by using the second beam information. For details, refer to the description of S305 above, and details are not described herein again.

S407. The terminal device receives the BRS sent by the base station.

S408. The base station to which the target cell belongs sends the BRS to the terminal device by using the second beam information.

The base station to which the target cell belongs sends the BRS to the terminal device by using the second beam information. For details, refer to the description of S305 above, and details are not described herein.

S409. The terminal device receives the BRS sent by the base station to which the target cell belongs.

However, the execution order of the above S408-S409 and S406-S407 is not limited.

S410. The terminal device reports the measurement result of the BRS to the base station.

Specifically, after receiving the BRS sent by the base station to which the current serving cell belongs by using the second beam information, and the BRS sent by the base station to which the target cell belongs, using the second beam information, the terminal device may perform measurement based on the BRS. The measurement result of the BRS is reported by the base station to which the current serving cell belongs. The measurement result includes a measurement result of the BRS of the current serving cell, and a measurement result of the BRS of the target cell. In this way, the base station to which the current serving cell belongs can determine whether the terminal device needs to be switched based on the measurement result sent by the terminal device.

S411. The base station sends a handover request message to the base station to which the target cell belongs.

Specifically, the base station to which the current serving cell belongs may determine, according to the measurement result sent by the terminal device, that the terminal device needs to perform handover, the base station may send a handover request message to the base station to which the target cell belongs, to indicate that the base station to which the target cell belongs is prepared for the terminal device. Wireless resource configuration information.

Optionally, in another implementation manner of the embodiment of the present application, the base station to which the current serving cell belongs may also carry the handover delay requirement information of the terminal device when the handover request message is sent to the base station to which the target cell belongs, so as to achieve the target. The base station to which the cell belongs may determine the beam information used by the base station to send information to the terminal device when the terminal device accesses the target cell according to the handover delay requirement information. The foregoing handover delay requirement information may be specifically determined according to the second beam information carried in the first indication information sent by the terminal device.

S412. The base station to which the target cell belongs sends a handover response message to the base station.

Specifically, after receiving the handover request message sent by the base station to which the current serving cell belongs, the base station to which the target cell belongs may send a handover response message to the base station to which the current serving cell belongs. The handover response message may carry radio resource configuration information prepared by the base station to which the target cell belongs for the terminal device.

Optionally, if the handover request message carries the handover delay requirement information of the terminal device, the handover response is cancelled. The information may also include: downlink measurement beam configuration information of the target cell (eg, beam type, beam direction, number of simultaneously transmitted beams, beam scanning mode, measurement subframe, measurement subframe (or measurement symbol) and beam identification mapping) Relationship, etc.). The information may be used by the terminal device to measure the target cell, and/or the beam training of the terminal device in the process of accessing the target cell. For example, in the random access procedure, the terminal device sends a random access preamble message to the base station, and which beam type and which beam scanning mode is used when the base station sends the random access response message to the terminal device.

S413. The base station sends a handover command to the terminal device.

Specifically, after receiving the handover response message sent by the base station to which the target cell belongs, the base station may send a handover command to the terminal device to instruct the terminal device to initiate a random access procedure to the base station where the target cell is located according to the information in the handover response message. . In this way, the base station to which the target cell belongs can use different beam information to perform a random access procedure with each terminal device according to the handover delay of each terminal device, so that the base station can satisfy the delay of each terminal device. Requirements. Optionally, if multiple terminal devices in the target cell are in the same beam coverage range, the base station may determine the required beam information based on the terminal device with the highest latency requirement.

Optionally, in another implementation manner of the embodiment of the present application, the foregoing step S405 may be further replaced by: the terminal device sending the first indication information to the base station to which the target cell belongs.

Specifically, the terminal device may also send the first indication information to the base station to which the one or more target cells belong to indicate that the base station to which the current serving cell belongs and the base station to which the one or more target cells belong are sent by using the second beam information. The BRS and so on. In this implementation manner, after the terminal device receives the BRS that is sent by the base station to which the current serving cell belongs, and the BRS that is sent by the base station to which the one or more target cells belong to the second beam information, the terminal device The self-determination of whether the handover is needed may be determined based on the measurement result of the BRS of the current serving cell and the measurement result of the BRS of the one or more target cells. When the terminal device determines that the handover is required, the terminal device may select a target cell with the best radio condition among the one or more target cells, and initiate a random access procedure to the target cell to use the random access procedure to the target cell. A radio link re-establishment request message is sent to complete access of the target cell.

The terminal device mobility processing method provided by the embodiment of the present application, when the base station uses the first beam information to send the downlink signal for the terminal device to perform mobility management to the terminal device, the terminal device may And determining, by the measurement result of the downlink signal, a condition that the terminal device is close to the cell handover, and sending the first indication information to the base station, so that the base station can use the second beam information that is narrower than the first beam information and has a fast scanning mode, The downlink signal is retransmitted to the terminal device, so that whether the cell handover can be performed according to the measurement result of the downlink signal by the terminal device. In this way, the base station can use the first beam information to send a downlink signal to the terminal device to reduce the base station beam scanning overhead before the terminal device meets the handover condition. When the terminal device approaches the cell handover condition, the triggering base station sends the downlink signal according to the second beam information, thereby facilitating the terminal device to be faster. The measurement result of the downlink signal is obtained to accelerate the process of the handover decision to meet the delay requirement of the terminal device.

One of ordinary skill in the art will appreciate that all or part of the steps to implement the various method embodiments described above may be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure. As shown in FIG. 8, the terminal device may include: a receiving module 11 and a sending module 13; optionally, the terminal device may further include: a processing module 12;

The receiving module 11 is configured to receive a downlink signal that is sent by the base station by using the first beam information. Optionally, the downlink signal includes at least one of the following: a synchronization channel and a beam reference signal BRS;

The sending module 13 is configured to send the first indication information to the base station, where the first indication information is used to indicate that the base station sends the downlink signal to the terminal device by using the second beam information.

The receiving module 11 is further configured to receive a downlink signal that is sent by the base station by using the second beam information.

In a specific implementation, the receiving module 11, the processing module 12, and the sending module 13 may be implemented by software, may be implemented by hardware, or may be implemented by a combination of software and hardware. The above-mentioned receiving module 11 , the processing module 12 , and the sending module 13 are implemented by hardware. The sending module 13 may be a transmitter, and the processing module 12 may be a processing component (for example, a processor). The receiving module 11 may be Receiver, etc.

The foregoing terminal device may be used to perform the steps on the terminal device side in the foregoing method embodiment, and the specific implementation manners and technical effects are similar, and details are not described herein again.

Optionally, at least one of the beam type and the beam scanning mode included in the first beam information and the second beam information is different; the beam type included in the first beam information is a first beam type or a second beam. The type of the beam included in the second beam information is a first beam type or a second beam type, where a transmission angle of a beam corresponding to the second beam type is smaller than a transmission angle of a beam corresponding to the first beam type The beam scanning mode included in the first beam information is a single beam scanning mode or a multiple beam parallel scanning mode; and the beam scanning mode included in the second beam information is a single beam scanning mode or a multiple beam parallel scanning mode.

Optionally, the receiving module 11 is further configured to: before receiving the downlink signal sent by the base station by using the first beam information, receive capability information of the serving cell that is sent by the base station by using the first beam information, and capability information of the neighboring cell; The capability information includes at least one of the following: a mapping relationship between a beam type and a delay level supported by the serving cell, and a mapping relationship between a beam scanning mode and a delay level supported by the serving cell, and the capability information of the neighboring cell includes the following information. The at least one type of information is: a mapping relationship between a beam type and a delay level supported by a neighboring cell, and a mapping relationship between a beam scanning mode and a delay level supported by the neighboring cell.

In this implementation, when the base station is the base station to which the serving cell belongs, the processing module 12 may be configured to determine the second beam information according to the delay level of the current service and the capability information of the serving cell, and according to the second Beam information. The sending module 13 is configured to send first indication information to the base station, where the first indication information includes: identifier of the second beam information or the second beam information. When the base station is the base station to which the serving cell belongs, the processing module 12 may be configured to determine the second beam information according to the delay level of the current service and the capability information of the neighboring cell; the sending module 13 is further configured according to the second beam. The information is sent to the base station, where the first indication information includes: the identifier of the second beam information or the second beam information.

Optionally, the sending module 13 is configured to send the first indication information to the base station when the measurement result of the downlink signal is less than or equal to the first preset threshold.

In this implementation manner, when the terminal device is a terminal device that is performing cell camping, the processing module 12 may be further configured to: after the receiving module 11 receives the downlink signal sent by the base station by using the second beam information, in the downlink signal. When the measurement result is greater than the first preset threshold, the base station performs a random access procedure; the sending module 13 sends the second indication information to the base station. The second indication information is used to indicate that the base station stops using the second beam information to send the downlink signal; the second indication information includes: the identifier of the first beam information or the first beam information, and the receiving module 11 is further configured to continue to receive the base station. a downlink signal sent by the beam information; the sending module 13 is further configured to: when the measurement result of the downlink signal is less than the second preset threshold, send the first indication information to the base station again.

In this implementation manner, when the terminal device is a terminal device that is performing cell handover, the base station is a base station where the serving cell is located, and the sending module 13 is further configured to: after the receiving module 11 receives the downlink signal that is sent by the base station by using the second beam information, And receiving, by the base station, a measurement result of the downlink signal; the receiving module 11 is further configured to: when the measurement result meets the cell handover condition, receive a handover command sent by the base station; and the handover command is used to indicate that the terminal device accesses the target cell.

In this implementation, when the terminal device is a terminal device that is performing cell handover, the base station is the base station where the target cell is located, and the sending module 13 is configured to: when the measurement result of the downlink signal is less than the first preset threshold, to the target cell. The base station where the base station is located sends the first indication information.

FIG. 9 is a schematic structural diagram of a base station according to an embodiment of the present disclosure. As shown in FIG. 9, the base station may include: a sending module 22, a receiving module 23; optionally, the base station may further include: a processing module 21;

The sending module 22 is configured to send the downlink signal to the terminal device by using the first beam information. Optionally, the downlink signal may include at least one of the following: a synchronization channel and/or a beam reference signal BRS;

The receiving module 23 is configured to receive first indication information that is sent by the terminal device, where the first indication information is used to indicate that the base station sends the downlink signal to the terminal device by using the second beam information.

The sending module 22 is further configured to send the downlink signal to the terminal device by using the second beam information.

In a specific implementation, the receiving module 23, the processing module 21, and the sending module 22 may be implemented by software, may be implemented by hardware, or may be implemented by combining software and hardware. The receiving module 23, the processing module 21, and the sending module 22 are implemented by hardware. The sending module 22 may be a transmitter, and the processing module 21 may be a processing component (for example, a processor). The receiving module 23 may be Receiver, etc.

The foregoing base station may be used to perform the steps of the terminal base station side in the foregoing method embodiment, and the specific implementation manners and technical effects are similar, and details are not described herein again.

Optionally, at least one of the beam type and the beam scanning mode included in the first beam information and the second beam information is different; the beam type includes any one of the following: a first beam type and a second beam type, where The beam angle of the beam corresponding to the second beam type is smaller than the beam angle of the beam corresponding to the first beam type. The beam scanning mode includes any one of the following: a single beam scanning mode and a multiple beam parallel scanning mode.

Optionally, the sending module 22 is further configured to: before using the first beam information to send the downlink signal to the terminal device, use the first beam information to send the capability information of the serving cell and the capability information of the neighboring cell to the terminal device; The capability information includes at least one of the following: a mapping relationship between a beam type and a delay level supported by the serving cell, and a mapping relationship between a beam scanning mode and a delay level supported by the serving cell, and the capability information of the neighboring cell includes the following information. The at least one type of information is: a mapping relationship between a beam type and a delay level supported by a neighboring cell, and a mapping relationship between a beam scanning mode and a delay level supported by the neighboring cell.

In this implementation, when the base station is the base station to which the serving cell belongs, the first indication information includes: second beam information or second beam information determined by the terminal device according to the delay level of the current service and the capability information of the serving cell. The sending module 22 is configured to send, by the terminal device, the downlink signal to the terminal device according to the second beam information determined by the delay class of the current service and the capability information of the serving cell. When the base station is the base station to which the neighboring cell belongs, the first indication information includes: the identifier of the second beam information or the second beam information determined by the terminal device according to the delay level of the current service and the capability information of the neighboring cell; The module 22 is configured to send, by using the terminal device, the downlink signal to the terminal device according to the second beam information determined by the delay level of the current service and the capability information of the neighboring cell.

Optionally, if the sending module 22 does not use the first beam information to send the capability information of the serving cell and the capability information of the neighboring cell to the terminal device, after the receiving module receives the first indication information sent by the terminal device, the sending module 22 may The downlink signal is sent to the terminal device by using the preset second beam information.

When the second beam information is used to send the downlink signal to the terminal device, the processing module 21 may determine the coverage range corresponding to the second beam information according to the location information of the terminal device, and the sending module 22 uses the coverage area corresponding to the second beam information. The second beam information transmits a downlink signal to the terminal device. Optionally, when the first indication information includes the coverage area corresponding to the first beam information, the coverage area corresponding to the first beam information may be used as the coverage area corresponding to the second beam information, and the sending module 22 corresponds to the second beam information. Within the coverage, the second beam information is used to send a downlink signal to the terminal device. Optionally, the processing module 21 may further determine, by using the measurement of the first indication information, a coverage area corresponding to the first beam information, and use a coverage range corresponding to the first beam information as a coverage area corresponding to the second beam information. The sending module 22 is configured to send the downlink signal to the terminal device by using the second beam information within the coverage area corresponding to the second beam information.

Optionally, the receiving module 23 is specifically configured to receive first indication information that is sent by the terminal device when the measurement result of the downlink signal is less than or equal to the first preset threshold.

In this implementation manner, when the terminal device is a terminal device that is camped on the cell, the processing module 21 may be further configured to: after the sending module 22 sends the downlink signal to the terminal device by using the second beam information, and the terminal device The receiving module 23 is configured to receive the second indication information that is sent by the terminal device, where the second indication information is used to indicate that the base station stops using the second beam information to send the downlink signal, where the second indication information includes: the first beam information or Identification of the first beam information.

In this implementation manner, when the terminal device is a terminal device that is performing cell handover, and the base station is the base station where the serving cell is located, the receiving module 23 is further configured to send, by the sending module 22, the second beam information to the terminal device. After the signal, the measurement result of the downlink signal reported by the terminal device is received; the sending module 22 is further configured to: when the measurement result meets the cell handover condition, send a handover command to the terminal device; the handover command is used to indicate that the terminal device is located at the target cell The base station initiates a random access procedure. At this time, the sending module 22 may be further configured to: after the receiving module 23 receives the first indication information sent by the terminal device, send the first indication information to the base station where the target cell is located.

It should be noted that the division of each module of the foregoing terminal device and/or the base station is only a division of a logical function, and may be integrated into one physical entity or physically separated in whole or in part. And these modules can all be implemented by software in the form of processing component calls; or all of them can be implemented in hardware form; some modules can be realized by processing component calling software, and some modules are realized by hardware. For example, the processing module may be a separate processing component, or may be integrated in one of the above devices, and It may also be stored in the memory of the above device in the form of program code, and the function of the above processing module is called and executed by one of the processing elements of the terminal device and/or the base station. The implementation of other modules is similar. In addition, all or part of these modules can be integrated or implemented independently. The processing elements described herein can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (digital) Singnal processor (DSP), or one or more Field Programmable Gate Array (FPGA). For another example, when one of the above modules is implemented in the form of a processing component scheduler code, the processing component may be a general purpose processor, such as a central processing unit (CPU) or other processor that can call the program code. As another example, these modules can be integrated and implemented in the form of a system-on-a-chip (SOC).

FIG. 10 is a schematic structural diagram of another terminal device according to an embodiment of the present application. As shown in FIG. 10, the terminal device may include: a processor 31 and a memory 34. Optionally, the terminal device may further include a transmitter 32, a receiver 33, an antenna 35, and the like.

The memory 34, the transmitter 32 and the receiver 33 and the processor 31 can be connected via a bus. Of course, in the actual application, the memory 34, the transmitter 32, and the receiver 33 and the processor 31 may not be a bus structure, but may be other structures, such as a star structure, which is not specifically limited in the present application.

Optionally, the processor 31 may be a general-purpose central processing unit or an ASIC, and may be one or more integrated circuits for controlling program execution, may be hardware circuits developed using an FPGA, and may be a baseband processor.

Alternatively, processor 31 may include at least one processing core.

Alternatively, memory 34 may include one or more of ROM, RAM, and disk storage. Memory 34 is used to store data and/or instructions needed by processor 31 to operate. The number of memories 34 can be one or more.

The processor 31 is configured to execute the instruction of the memory 34. When the processor 31 executes the instruction stored in the memory 34, the processor 31 is configured to execute the processing method of the terminal device mobility performed by the terminal device, and details are not described herein.

FIG. 11 is a schematic structural diagram of another base station according to an embodiment of the present application. The base station includes a processor 41 and a memory 44. Optionally, the base station may further include: a transmitter 42, a receiver 43, an antenna 45, and the like.

The memory 44, the transmitter 42 and the receiver 43 and the processor 41 can be connected via a bus. Of course, in the actual application, the memory 44, the transmitter 42 and the receiver 43 and the processor 41 may not be a bus structure, but may be other structures, such as a star structure, which is not specifically limited in the present application.

Optionally, the processor 41 may be a general-purpose central processing unit or an ASIC, and may be one or more integrated circuits for controlling program execution, may be hardware circuits developed using an FPGA, and may be a baseband processor.

Alternatively, processor 41 may include at least one processing core.

Alternatively, memory 44 may include one or more of ROM, RAM, and disk storage. Memory 44 is used to store data and/or instructions needed by processor 41 to operate. The number of memories 44 can be one or more.

The processor 41 is configured to execute the instruction of the memory 44. When the processor 41 executes the instruction stored in the memory 44, the processor 41 is caused to execute the processing method of the terminal device mobility performed by the base station, and details are not described herein.

As described in the above embodiments, the terminal device involved in the embodiment of the present application may be a wireless terminal such as a mobile phone or a tablet computer. For example, a terminal device is used as a mobile phone as an example: FIG. 12 is a block diagram showing a partial structure of a terminal device provided by the embodiment of the present disclosure. Referring to FIG. 12, the mobile phone may include: a radio frequency (RF) circuit 1110, a memory 1120, an input unit 1130, a display unit 1140, a sensor 1150, an audio circuit 1160, a wireless fidelity (WiFi) module 1170, and processing. Device 1180, and power supply 1190 and other components. It will be understood by those skilled in the art that the structure of the handset shown in FIG. 12 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different component arrangements.

The following describes the components of the mobile phone in detail with reference to FIG. 12:

The RF circuit 1110 can be used for receiving and transmitting signals during the transmission or reception of information or during a call. Specifically, after receiving the downlink information of the base station, the processing is performed by the processor 1180. In addition, the uplink data is sent to the base station. Generally, RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuitry 1110 can also communicate with the network and other devices via wireless communication. The above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), e-mail, Short Messaging Service (SMS), and the like.

The memory 1120 can be used to store software programs and modules, and the processor 1180 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 1120. The memory 1120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the mobile phone (such as audio data, phone book, etc.). Moreover, memory 1120 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 1130 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the handset. Specifically, the input unit 1130 may include a touch panel 1131 and other input devices 1132. The touch panel 1131, also referred to as a touch screen, can collect touch operations on or near the user (such as the user using a finger, a stylus, or the like on the touch panel 1131 or near the touch panel 1131. Operation), and drive the corresponding connecting device according to a preset program. Optionally, the touch panel 1131 may include two parts: a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. The processor 1180 is provided and can receive commands from the processor 1180 and execute them. In addition, the touch panel 1131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 1131, the input unit 1130 may also include other input devices 1132. Specifically, other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.

The display unit 1140 can be used to display information input by the user or information provided to the user as well as various menus of the mobile phone. The display unit 1140 may include a display panel 1141. Alternatively, the display panel 1141 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Further, the touch panel 1131 can be overlaid on the display panel 1141 when the touch panel 1131 Upon detecting a touch operation on or near it, the processor 1180 is transmitted to determine the type of touch event, and then the processor 1180 provides a corresponding visual output on the display panel 1141 based on the type of touch event. Although the touch panel 1131 and the display panel 1141 are used as two independent components to implement the input and input functions of the mobile phone in FIG. 12, in some embodiments, the touch panel 1131 and the display panel 1141 may be integrated. Realize the input and output functions of the phone.

The handset may also include at least one type of sensor 1150, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1141 according to the brightness of the ambient light, and the light sensor may close the display panel 1141 and/or when the mobile phone moves to the ear. Or backlight. As a kind of motion sensor, the acceleration sensor can detect the acceleration of each direction (usually three axes). When it is still, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related games). , magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as the mobile phone can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer repeat .

Audio circuitry 1160, speaker 1161, and microphone 1162 can provide an audio interface between the user and the handset. The audio circuit 1160 can transmit the converted electrical data of the received audio data to the speaker 1161, and convert it into a sound signal output by the speaker 1161; on the other hand, the microphone 1162 converts the collected sound signal into an electrical signal, and the audio circuit 1160 After receiving, it is converted into audio data, and then processed by the audio data output processor 1180, transmitted to the other mobile phone via the RF circuit 1110, or outputted to the memory 1120 for further processing.

WiFi is a short-range wireless transmission technology. The mobile phone can help users to send and receive emails, browse web pages and access streaming media through the WiFi module 1170, which provides users with wireless broadband Internet access. Although FIG. 12 shows the WiFi module 1170, it can be understood that it does not belong to the essential configuration of the mobile phone, and can be omitted as needed within the scope of not changing the essence of the application.

The processor 1180 is a control center for the handset, which connects various portions of the entire handset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 1120, and invoking data stored in the memory 1120, The phone's various functions and processing data, so that the overall monitoring of the phone. Optionally, the processor 1180 may include one or more processing units; for example, the processor 1180 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like. The modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 1180.

The handset also includes a power source 1190 (such as a battery) that powers the various components. For example, the power source can be logically coupled to the processor 1180 via a power management system to manage functions such as charging, discharging, and power management through the power management system.

The mobile phone can also include a camera 1200, which can be a front camera or a rear camera. Although not shown, the mobile phone may further include a Bluetooth module, a GPS module, and the like, and details are not described herein again.

In the embodiment of the present application, the processor 1180 included in the mobile phone may be used to perform the method for processing the terminal device mobility, and the implementation principle and technical effects are similar, and details are not described herein.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, Or other programmable devices. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, computer instructions can be wired from a website site, computer, server or data center (eg Coax, fiber, digital subscriber line (DSL) or wireless (eg, infrared, wireless, microwave, etc.) is transmitted to another website, computer, server, or data center. The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. Useful media can be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)).

Claims

A method for processing mobility of a terminal device, comprising:

Receiving, by the terminal device, a downlink signal that is sent by the base station by using the first beam information;

The terminal device sends the first indication information to the base station according to the downlink signal that is sent by using the first beam information, where the first indication information is used to indicate that the base station sends the downlink signal to the terminal device by using the second beam information. ;

The terminal device receives the downlink signal that is sent by the base station by using the second beam information.
The method according to claim 1, wherein at least one of a beam type and a beam scanning mode included in the first beam information and the second beam information is different;

The beam type included in the first beam information is a first beam type or a second beam type; the beam type included in the second beam information is a first beam type or a second beam type, where the second beam The transmission angle of the beam corresponding to the type is smaller than the transmission angle of the beam corresponding to the first beam type;

The beam scanning mode included in the first beam information is a single beam scanning mode or a multiple beam parallel scanning mode; the beam scanning mode included in the second beam information is a single beam scanning mode or a multiple beam parallel scanning mode.
The method according to claim 2, wherein before the receiving, by the terminal device, the downlink signal sent by the base station by using the first beam information, the method further includes:

The terminal device receives the capability information of the serving cell that is sent by the base station by using the first beam information, and the capability information of the neighboring cell; the capability information of the serving cell includes at least one of the following information: supported by the serving cell a mapping relationship between a beam type and a delay level, a beam scanning manner supported by the serving cell, and a delay level, where the capability information of the neighboring cell includes at least one of the following information: the neighboring cell The mapping relationship between the supported beam type and the delay level, and the mapping relationship between the beam scanning mode and the delay level supported by the neighboring cell.
The method according to claim 3, wherein when the base station is a base station to which the serving cell belongs, the terminal device sends the first indication information to the base station, including:

Determining, by the terminal device, the second beam information according to a delay level of the current service and capability information of the serving cell;

The terminal device sends first indication information to the base station according to the second beam information; the first indication information includes: an identifier of the second beam information or the second beam information;

When the base station is the base station to which the neighboring cell belongs, the terminal device sends the first indication information to the base station, including:

Determining, by the terminal device, the second beam information according to a delay level of the current service and capability information of the neighboring cell;

The terminal device sends first indication information to the base station according to the second beam information; the first indication information includes: an identifier of the second beam information or the second beam information.
The method according to claim 1 or 2, wherein the transmitting, by the terminal device, the first indication information to the base station according to the downlink signal sent by using the first beam information comprises:

When the measurement result of the downlink signal that is sent by using the first beam information is less than or equal to a first preset threshold, the terminal device sends the first indication information to the base station.
The method according to claim 5, wherein the terminal device is a terminal device that is performing cell camping, and the terminal device receives the downlink signal sent by the base station by using the second beam information. , Also includes:

When the measurement result of the downlink signal that is sent by using the first beam information is greater than the first preset threshold, the terminal device performs a random access procedure with the base station, and sends the second indication information to the base station, The second indication information is used to indicate that the base station stops using the second beam information to send the downlink signal;

The second indication information includes: an identifier of the first beam information or first beam information;

The terminal device continues to receive the downlink signal that is sent by the base station by using the first beam information;

And when the measurement result of the downlink signal sent by using the first beam information is less than a second preset threshold, the terminal device sends the first indication information to the base station again.
The method according to claim 5, wherein the terminal device is a terminal device that is performing cell handover, the base station is a base station where a serving cell is located, and the terminal device receives the second beam information of the base station by using the base station. After the downlink signal is sent, the method further includes:

The terminal device reports, to the base station, a measurement result of the downlink signal that is sent by using the second beam information;

When the measurement result meets the cell handover condition, the terminal device receives a handover command sent by the base station; and the handover command is used to indicate that the terminal device accesses the target cell.
The method according to claim 5, wherein the terminal device is a terminal device that is performing cell handover, and the base station is a base station where the target cell is located; and the terminal device is configured to send by using the first beam information. When the measurement result of the downlink signal is less than the first preset threshold, the first indication information is sent to the base station, including:

When the measurement result of the downlink signal is less than the first preset threshold, the terminal device sends the first indication information to the base station where the target cell is located.
A method for processing mobility of a terminal device, comprising:

The base station sends the downlink signal to the terminal device by using the first beam information;

Receiving, by the base station, first indication information that is sent by the terminal device, where the first indication information is used to indicate that the base station sends the downlink signal to the terminal device by using second beam information;

The base station sends the downlink signal to the terminal device by using the second beam information.
The method according to claim 9, wherein at least one of a beam type and a beam scanning mode included in the first beam information and the second beam information is different;

The beam type included in the first beam information is a first beam type or a second beam type; the beam type included in the second beam information is a first beam type or a second beam type, where the second beam The transmission angle of the beam corresponding to the type is smaller than the transmission angle of the beam corresponding to the first beam type;

The beam scanning mode included in the first beam information is a single beam scanning mode or a multiple beam parallel scanning mode; the beam scanning mode included in the second beam information is a single beam scanning mode or a multiple beam parallel scanning mode.
The method according to claim 10, wherein before the base station sends the downlink signal to the terminal device by using the first beam information, the method further includes:

The base station sends the capability information of the serving cell and the capability information of the neighboring cell to the terminal device by using the first beam information; the capability information of the serving cell includes at least one of the following types: a beam type supported by the serving cell a mapping relationship between a delay level, a beam scanning mode supported by the serving cell, and a delay level, where the capability information of the neighboring cell includes at least one of the following: a beam supported by the neighboring cell The mapping relationship between the type and the delay level, and the mapping relationship between the beam scanning mode supported by the neighboring cell and the delay level.
The method according to claim 11, wherein said base station is associated with said serving cell In the case of the base station, the first indication information includes: an identifier of the second beam information or the second beam information determined by the terminal device according to a delay level of the current service and capability information of the serving cell;

And sending, by the base station, the downlink signal to the terminal device by using the second beam information, including:

The base station sends the downlink signal to the terminal device by using the second beam information determined by the terminal device according to the delay class of the current service and the capability information of the serving cell;

When the base station is the base station to which the neighboring cell belongs, the first indication information includes: the second determined by the terminal device according to a delay level of the current service and capability information of the neighboring cell. The identifier of the beam information or the second beam information;

And sending, by the base station, the downlink signal to the terminal device by using the second beam information, including:

The base station sends the downlink signal to the terminal device by using the second beam information determined by the terminal device according to the delay class of the current service and the capability information of the neighboring cell.
The method according to claim 9 or 10, wherein the transmitting, by the base station, the downlink signal to the terminal device by using the second beam information comprises:

The base station sends the downlink signal to the terminal device by using the preset second beam information.
The method according to any one of claims 9 to 13, wherein the terminal device is a terminal device that is camping on a cell, and the base station sends the After the downlink signal, it also includes:

The base station and the terminal device perform a random access procedure, and receive second indication information that is sent by the terminal device, where the second indication information is used to indicate that the base station stops using the second beam information to send the downlink signal. The second indication information includes: the identifier of the first beam information or the first beam information.
The method according to any one of claims 9 to 13, wherein the terminal device is a terminal device that is performing cell handover, the base station is a base station where a serving cell is located, and the base station adopts the second After the beam information is sent to the terminal device, the downlink signal further includes:

Receiving, by the base station, a measurement result of the downlink signal reported by the terminal device;

The base station sends a handover command to the terminal device when the measurement result satisfies the cell handover condition; the handover command is used to instruct the terminal device to initiate a random access procedure to the base station where the target cell is located.
A terminal device, comprising:

a receiving module, configured to receive a downlink signal that is sent by the base station by using the first beam information;

a sending module, configured to send the first indication information to the base station according to the downlink signal that is sent by using the first beam information, where the first indication information is used to indicate that the base station sends the Downlink signal

The receiving module is further configured to receive the downlink signal that is sent by the base station by using the second beam information.
The terminal device according to claim 16, wherein at least one of a beam type and a beam scanning mode included in the first beam information and the second beam information is different;

The beam type included in the first beam information is a first beam type or a second beam type; the beam type included in the second beam information is a first beam type or a second beam type, where the second beam The transmission angle of the beam corresponding to the type is smaller than the transmission angle of the beam corresponding to the first beam type;

The beam scanning mode included in the first beam information is a single beam scanning mode or a multiple beam parallel scanning mode; the beam scanning mode included in the second beam information is a single beam scanning mode or a multiple beam parallel scanning mode.
The terminal device according to claim 17, wherein

The receiving module is further configured to receive capability information of the serving cell that is sent by the base station by using the first beam information, and capability information of the neighboring cell; the capability information of the serving cell includes at least one of the following information: the service The mapping relationship between the beam type and the delay level supported by the cell, the beam scanning mode and the delay level supported by the serving cell, and the capability information of the neighboring cell includes at least one of the following information: The mapping relationship between the beam type and the delay level supported by the neighboring cell, and the mapping relationship between the beam scanning mode and the delay level supported by the neighboring cell.
The terminal device according to claim 18, further comprising: a processing module;

When the base station is the base station to which the serving cell belongs, the processing module is configured to determine the second beam information according to a delay level of the current service and capability information of the serving cell; the sending module, The first indication information is sent to the base station according to the second beam information, where the first indication information includes: an identifier of the second beam information or the second beam information;

When the base station is the base station to which the serving cell belongs, the processing module is specifically configured to determine the second beam information according to a delay level of the current service and capability information of the neighboring cell; The module is configured to send the first indication information to the base station according to the second beam information, where the first indication information includes: an identifier of the second beam information or the second beam information.
The terminal device according to claim 16 or 17, wherein the sending module is configured to send a first indication to the base station when a measurement result of the downlink signal is less than or equal to a first preset threshold information.
The terminal device according to claim 20, wherein the terminal device is a terminal device that is performing cell camping; the terminal device further includes: a processing module;

The processing module is further configured to: after the receiving module receives the downlink signal sent by the base station by using the second beam information, when the measurement result of the downlink signal is greater than the first preset threshold, Performing a random access procedure with the base station; the sending module is configured to send second indication information to the base station, where the second indication information is used to indicate that the base station stops using the second beam information to send the downlink signal; The second indication information includes: an identifier of the first beam information or first beam information;

The receiving module is further configured to continue to receive the downlink signal that is sent by the base station by using the first beam information;

The sending module is further configured to send the first indication information to the base station again when the measurement result of the downlink signal is less than a second preset threshold.
The terminal device according to claim 20, wherein the terminal device is a terminal device that performs cell handover, and the base station is a base station where a serving cell is located;

The sending module is further configured to: after receiving, by the receiving module, the downlink signal that is sent by the base station by using the second beam information, report the measurement result of the downlink signal to the base station;

The receiving module is further configured to: when the measurement result meets a cell handover condition, receive a handover command sent by the base station; and the handover command is used to indicate that the terminal device accesses a target cell.
The terminal device according to claim 20, wherein the terminal device is a terminal device that is performing cell handover, and the base station is a base station where the target cell is located;

The sending module is configured to send first indication information to a base station where the target cell is located when the measurement result of the downlink signal is less than a first preset threshold.
A base station, comprising:

a sending module, configured to send, by using the first beam information, a downlink signal to the terminal device;

a receiving module, configured to receive first indication information that is sent by the terminal device, where the first indication information is used to indicate that the base station sends the downlink signal to the terminal device by using second beam information;

The sending module is further configured to send the downlink signal to the terminal device by using the second beam information according to the first indication information.
The base station according to claim 24, wherein the first beam information and the second beam information comprise different beam types and beam scanning modes at least one type of information;

The beam type included in the first beam information is a first beam type or a second beam type; the beam type included in the second beam information is a first beam type or a second beam type, where the second beam The transmission angle of the beam corresponding to the type is smaller than the transmission angle of the beam corresponding to the first beam type;

The beam scanning mode included in the first beam information is a single beam scanning mode or a multiple beam parallel scanning mode; the beam scanning mode included in the second beam information is a single beam scanning mode or a multiple beam parallel scanning mode.
The base station according to claim 25, wherein the sending module is further configured to: use the first beam information to send the capability information of the serving cell and the capability information of the neighboring cell to the terminal device; the capability information of the serving cell includes At least one of the following information: a mapping relationship between a beam type and a delay level supported by the serving cell, a mapping relationship between a beam scanning mode and a delay level supported by the serving cell, and capability information of the neighboring cell The at least one type of information includes: a mapping relationship between a beam type and a delay level supported by the neighboring cell, and a mapping relationship between a beam scanning mode and a delay level supported by the neighboring cell.
The base station according to claim 26, wherein, when the base station is a base station to which the serving cell belongs, the first indication information includes: a delay level of the terminal device according to a current service, and the service The identifier of the second beam information or the second beam information determined by the capability information of the cell;

The sending module is specifically configured to send, by using the terminal device, the downlink signal to the terminal device according to the second beam information determined by the delay class of the current service and the capability information of the serving cell;

When the base station is the base station to which the neighboring cell belongs, the first indication information includes: the second determined by the terminal device according to a delay level of the current service and capability information of the neighboring cell. The identifier of the beam information or the second beam information;

The sending module is specifically configured to send, by using, the downlink signal to the terminal device by using the second beam information determined by the terminal device according to a delay level of a current service and capability information of the neighboring cell. .
The base station according to claim 24 or 25, wherein the sending module is configured to send the downlink signal to the terminal device by using the preset second beam information.
The base station according to any one of claims 24 to 28, wherein the terminal device is a terminal device that is performing cell camping; the terminal device further includes: a processing module;

The processing module is configured to perform a random access procedure with the terminal device after the sending module sends the downlink signal to the terminal device by using the second beam information, where the receiving module receives the terminal a second indication information that is sent by the device, where the second indication information is used to indicate that the base station stops using the second beam information to send the downlink signal; the second indication information includes: the first beam information or the first beam The identification of the information.
The base station according to any one of claims 24 to 28, wherein the terminal device is a terminal device that is performing cell handover, and the base station is a base station where a serving cell is located;

The receiving module is further configured to send, by the sending module, the second beam information to the terminal device After the downlink signal is received, receiving a measurement result of the downlink signal reported by the terminal device;

The sending module is configured to send a handover command to the terminal device when the measurement result meets a cell handover condition, where the handover command is used to instruct the terminal device to initiate a random access procedure to a base station where the target cell is located.