CN108023628B

CN108023628B - Terminal equipment mobility processing method, terminal equipment and base station

Info

Publication number: CN108023628B
Application number: CN201610965728.7A
Authority: CN
Inventors: 张健
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-11-04
Filing date: 2016-11-04
Publication date: 2021-08-20
Anticipated expiration: 2036-11-04
Also published as: WO2018082435A1; CN108023628A

Abstract

The embodiment of the invention provides a processing method for mobility of terminal equipment, the terminal equipment and a base station, wherein the method comprises the following steps: the terminal equipment receives a downlink signal sent by the base station by adopting the first beam information; the terminal equipment sends first indication information to the base station according to the downlink signal sent by the first beam information; the first indication information is used for indicating the base station to adopt the second beam information to send downlink signals to the terminal equipment; and the terminal equipment receives the downlink signal sent by the base station by adopting the second beam information. According to the terminal equipment mobility processing method, the terminal equipment and the base station provided by the embodiment of the invention, the base station can pertinently send the downlink signal suitable for the terminal equipment to the terminal equipment according to the requirement of the terminal equipment, so that the mode that the base station sends the downlink signal to the terminal equipment is increased, and the requirements of different terminal equipment are met.

Description

Terminal equipment mobility processing method, terminal equipment and base station

Technical Field

The present invention relates to communications technologies, and in particular, to a method for processing mobility of a terminal device, and a base station.

Background

With the continuous development of communication technology, the existing wireless spectrum resources have been unable to meet the requirements of users in practical use, and therefore, base stations and terminal devices using high frequency signals for communication appear in the cellular communication system. However, since the attenuation of the high frequency signal is relatively large during transmission, when the high frequency signal is transmitted between the base station and the terminal device, beamforming (beamforming) may be used to transmit the high frequency signal to the terminal device, so as to improve the power of the high frequency signal and expand the coverage area of the cell.

Currently, when a base station uses beamforming to send a downlink signal for mobility management to a terminal device, the terminal device may decide whether to perform mobility management behaviors such as cell residence, cell reselection, and cell handover based on measurement of the downlink signal. However, since the beamforming includes different beam types and/or different beam scanning manners, how a base station in a cell using a high-frequency signal transmits a downlink signal to a terminal device is an urgent problem to be solved.

Disclosure of Invention

The embodiment of the invention provides a processing method for mobility of terminal equipment, the terminal equipment and a base station, which are used for solving the technical problem of how to send downlink signals to the terminal equipment by the base station in a cell using high-frequency signals in the prior art.

A first aspect of an embodiment of the present invention provides a method for processing mobility of a terminal device, where the method includes: the terminal equipment receives a downlink signal sent by the base station by adopting the first beam information; the terminal equipment sends first indication information to the base station according to a downlink signal sent by adopting first beam information; the first indication information is used for indicating the base station to transmit the downlink signal to the terminal equipment by adopting second beam information; and the terminal equipment receives the downlink signal sent by the base station by adopting the second beam information.

With the method for processing mobility of the terminal device provided in the first aspect, when the base station sends the downlink signal for 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, so that the base station may send the downlink signal to the terminal device again by using the second beam information. Namely, the base station can specifically send the downlink signal suitable for the terminal device to the terminal device according to the requirement of the terminal device, so that the manner of sending the downlink signal to the terminal device by the base station is increased, and the requirements of different terminal devices are met.

Optionally, at least one of a beam type and a beam scanning manner 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, wherein the emission angle of the beam corresponding to the second beam type is smaller than the emission 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 multi-beam parallel scanning mode; the beam scanning mode included in the second beam information is a single beam scanning mode or a multi-beam parallel scanning mode.

Optionally, before the terminal device receives the downlink signal sent by the base station by using the first beam information, the method further includes: the terminal equipment receives the capability information of the serving cell and the capability information of the adjacent cell which are sent by the base station by adopting the first beam information; the capability information of the serving cell includes at least one of the following information: the mapping relationship between the beam type supported by the serving cell and the delay level, and the mapping relationship between the beam scanning mode supported by the serving cell and the delay level, where the capability information of the neighboring cell includes at least one of the following information: the mapping relation between the beam type supported by the adjacent cell and the delay level, and the mapping relation between the beam scanning mode supported by the adjacent cell and the delay level.

Illustratively, when the base station is a base station to which the serving cell belongs, the sending, by the terminal device, first indication information to the base station includes: the terminal equipment determines the second beam information according to the time delay grade of the current service and the capability information of the service cell; the terminal equipment sends first indication information to the base station according to the second beam information; the first indication information includes: an identification of the second beam information or the second beam information; when the base station is a base station to which the adjacent cell belongs, the terminal device sends first indication information to the base station, including: the terminal equipment determines the second beam information according to the time delay grade of the current service and the capability information of the adjacent cell; the terminal equipment sends first indication information to the base station according to the second beam information; the first indication information includes: an identification of the second beam information or the second beam information.

By the method for processing mobility of the terminal device provided by this possible embodiment, before the base station sends the downlink signal for 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 and the capability information of the neighboring cell to the terminal device, so that the terminal device may determine, according to the delay level of its current service and the capability information of the cell corresponding to the base station, the second beam information to be used by the base station, and send the second beam information to the base station by carrying the second beam information in the first indication information, so that the base station may send the downlink signal to the terminal device again by using the second beam information, and thus the delay when the terminal device receives the downlink signal may satisfy the requirement of the current service of the terminal device.

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

Optionally, the sending, by the terminal device, the first indication information to the base station includes: and the terminal equipment sends first indication information to the base station when the measurement result of the downlink signal is less than or equal to a first preset threshold value.

With the processing method for mobility of the terminal device provided by this possible embodiment, when the base station transmits the downlink signal for mobility management of the terminal device to the terminal device by using the first beam information, the terminal device may determine that when the measurement result of the downlink signal is less than or equal to the first preset threshold, i.e. does not satisfy the cell residence condition or is close to the cell switching condition, first indication information is sent to the base station, so that the base station can use the second beam information to re-transmit the downlink signal to the terminal equipment, so that the terminal equipment with different wireless conditions can successfully complete the cell residence, the success rate of the cell residence of the terminal equipment is improved, or, the measurement result of the downlink signal is obtained more quickly from the terminal equipment close to the cell switching condition, so as to accelerate the process of cell switching judgment and meet the requirement of the terminal equipment on time delay.

Optionally, if the terminal device is a terminal device that is camping in a cell, after the terminal device receives the downlink signal sent by the base station by using the second beam information, the method further includes: when the measurement result of the downlink signal is greater than the first preset threshold, the terminal device executes a random access process with the base station and sends second indication information to the base station, wherein the second indication information is used for indicating the base station to stop sending the downlink signal by adopting second beam information; the second indication information includes: an identification of the first beam information or first beam information; the terminal equipment continues to receive the downlink signal sent by the base station by adopting the first beam information; and the terminal equipment sends the first indication information to the base station again when the measurement result of the downlink signal is smaller than a second preset threshold value.

With the method for processing mobility of a terminal device according to this possible embodiment, for a terminal device that is performing cell residence, when the base station uses the first beam information to send a downlink signal used for mobility management of the terminal device to the terminal device, and when a measurement result of the downlink signal does not satisfy a cell residence condition, the terminal device may send the first indication information to the base station, so that the base station may send the downlink signal to the terminal device again using the second beam information that is narrower than the beam corresponding to the first beam information, so that the terminal device may perform a cell residence procedure with the base station according to the measurement result of the downlink signal. By the method, the terminal equipment can trigger the base station to transmit the downlink signal by adopting different beam information based on the wireless condition of the terminal equipment, and the base station does not need to always adopt a narrower beam to transmit the downlink signal in the coverage area of the service cell, so that the signaling overhead and the cost of the base station are reduced, the terminal equipment with different wireless conditions can successfully finish cell residence, and the success rate of the cell residence of the terminal equipment is improved.

Optionally, if the terminal device is a terminal device that is performing cell switching, and the base station is a base station where a serving cell is located, after the terminal device receives the downlink signal sent by the base station by using the second beam information, the method further includes: the terminal equipment reports the measurement result of the downlink signal to the base station; when the measurement result meets the cell switching condition, the terminal equipment receives a switching command sent by the base station; and the switching command is used for indicating the terminal equipment to access the target cell.

With the processing method for mobility of a terminal device provided in this possible embodiment, for a terminal device that is performing cell handover, when a base station uses first beam information to send a downlink signal used for mobility management of the terminal device to the terminal device, the terminal device may determine, based on a measurement result of the downlink signal, a condition that the terminal device is close to cell handover, and send first indication information to the base station, so that the base station may send the downlink signal to the terminal device again using second beam information that is narrower than a beam corresponding to the first beam information and that is faster in scanning mode, and thus may decide whether to perform cell handover according to a measurement result of the downlink signal by the terminal device. By the method, the base station can adopt the first beam information to send the downlink signal to the terminal equipment before the terminal equipment meets the switching condition, so that the beam scanning overhead of the base station is reduced. When the terminal equipment approaches the cell switching condition, the base station is triggered to send the downlink signal according to the second beam information, so that the terminal equipment can acquire the measurement result of the downlink signal more quickly, the switching judgment process is accelerated, and the requirement of the terminal equipment on time delay is met.

Optionally, the terminal device is a terminal device that is performing cell switching, and the base station is a base station where a target cell is located; then, when the measurement result of the downlink signal is smaller than a first preset threshold, the terminal device sends first indication information to the base station, where the first indication information includes: and the terminal equipment sends first indication information to the base station where the target cell is located when the measurement result of the downlink signal is smaller than a first preset threshold value.

With the terminal device mobility processing method provided by this possible embodiment, for a terminal device that is performing cell handover, when a base station to which a target cell belongs uses first beam information to send a downlink signal for mobility management of the terminal device to the terminal device, the terminal device may determine, based on a measurement result of the downlink signal, a condition that the terminal device is close to cell handover, and send 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 use second beam information that is narrower than a beam corresponding to the first beam information and that is faster in a scanning manner, and resend the downlink signal to the terminal device, so that the terminal device may decide whether to perform cell handover according to the measurement result of the downlink signal. By the method, the base station to which the target cell belongs can adopt the first beam information to send the downlink signal to the terminal equipment before the terminal equipment meets the switching condition, so that the beam scanning overhead of the base station to which the target cell belongs is reduced. When the terminal equipment approaches the cell switching condition, the base station to which the target cell belongs is triggered to send the downlink signal according to the second beam information, so that the terminal equipment can acquire the measurement result of the downlink signal more quickly, the switching judgment process is accelerated, and the requirement of the terminal equipment on time delay is met.

A second aspect of the embodiments of the present invention provides a method for processing mobility of a terminal device, where a base station sends a downlink signal to the terminal device by using first beam information; the base station receives first indication information sent by the terminal equipment, wherein the first indication information is used for indicating the base station to send the downlink signal to the terminal equipment by adopting second beam information; and the base station sends the downlink signal to the terminal equipment by adopting the second beam information.

Optionally, 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 a service cell and the capability information of an adjacent cell to the terminal equipment by adopting the first beam information; the capability information of the serving cell includes at least one of the following information: the mapping relationship between the beam type supported by the serving cell and the delay level, and the mapping relationship between the beam scanning mode supported by the serving cell and the delay level, where the capability information of the neighboring cell includes at least one of the following information: the mapping relation between the beam type supported by the adjacent cell and the delay level, and the mapping relation between the beam scanning mode supported by the adjacent cell and the delay level.

Illustratively, when the base station is a base station to which the serving cell belongs, the first indication information includes: the terminal equipment determines the second beam information or the identifier of the second beam information according to the delay level of the current service and the capability information of the serving cell; the sending, by the base station, the downlink signal to the terminal device by using the second beam information includes: the base station sends the downlink signal to the terminal equipment by adopting the second beam information determined by the terminal equipment according to the time delay grade of the current service and the capability information of the serving cell; when the base station is a base station to which the neighboring cell belongs, the first indication information includes: the terminal equipment determines the second beam information or the identifier of the second beam information according to the delay level of the current service and the capability information of the adjacent cell; the sending, by the base station, the downlink signal to the terminal device by using the second beam information includes: and the base station sends the downlink signal to the terminal equipment by adopting the second beam information determined by the terminal equipment according to the time delay grade of the current service and the capability information of the adjacent cell.

Optionally, the sending, by the base station, the downlink signal to the terminal device by using the second beam information includes: and the base station sends the downlink signal to the terminal equipment by adopting the preset second beam information.

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

Optionally, the sending, by the base station, the downlink signal to the terminal device by using the second beam information includes: the base station determines a coverage range corresponding to the second beam information according to the position information of the terminal equipment; and the base station transmits the downlink signal to the terminal equipment by adopting the second beam information in a coverage range corresponding to the second beam information. Optionally, the first indication information includes: a coverage range corresponding to the first beam information; the base station sends the downlink signal to the terminal device by using the second beam information, including: the base station takes the coverage range corresponding to the first beam information as the coverage range corresponding to the second beam information; and the base station transmits the downlink signal to the terminal equipment by adopting the second beam information in a coverage range corresponding to the second beam information. Optionally, the sending, by the base station, the downlink signal to the terminal device by using the second beam information includes: the base station determines a coverage range corresponding to the first beam information through measurement of the first indication information, and takes the coverage range corresponding to the first beam information as a coverage range corresponding to the second beam information; and the base station transmits the downlink signal to the terminal equipment by adopting the second beam information in a coverage range corresponding to the second beam information.

By the method for processing mobility of the terminal device provided by this possible embodiment, the base station may determine the coverage area corresponding to the second beam information, and then may transmit the downlink signal to the terminal device by using the second beam information in the coverage area corresponding to the second beam information, and still transmit the downlink signal by using the first beam information in other coverage areas of the cell, so as to reduce signaling overhead of the base station.

Optionally, the receiving, by the base station, the first indication information sent by the terminal device includes: and the base station receives first indication information sent by the terminal equipment when the measurement result of the downlink signal is less than or equal to a first preset threshold value.

Optionally, the terminal device is a terminal device that is camping on a cell, and after the base station sends the downlink signal to the terminal device by using the second beam information, the method further includes: the base station and the terminal equipment execute a random access process and receive second indication information sent by the terminal equipment, wherein the second indication information is used for indicating the base station to stop sending the downlink signal by adopting second beam information; the second indication information includes: the first beam information or an identification of the first beam information.

Optionally, if the terminal device is a terminal device that is performing cell switching, and the base station is a base station where a serving cell is located, after the base station sends the downlink signal to the terminal device by using the second beam information, the method further includes: the base station receives the measurement result of the downlink signal reported by the terminal equipment; the base station sends a switching command to the terminal equipment when the measurement result meets the cell switching condition; and the switching command is used for indicating the terminal equipment to initiate a random access process to the base station where the target cell is located. Then, in this implementation, after the base station receives the first indication information sent by the terminal device, the method further includes: and the base station sends first indication information to the base station where the target cell is located.

The beneficial effects of the method for processing mobility of the terminal device provided by the second aspect and each possible implementation manner of the second aspect may refer to the beneficial effects brought by each possible implementation manner of the first aspect and the first aspect, and are not described again here.

A third aspect of the embodiments of the present invention provides a terminal device, including: the receiving module is used for receiving a downlink signal sent by the base station by adopting the first beam information; a sending module, configured to send first indication information to the base station according to a downlink signal sent by using first beam information; the first indication information is used for indicating the base station to transmit the downlink signal to the terminal equipment by adopting second beam information; the receiving module is further configured to receive the downlink signal sent by the base station by using the second beam information.

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

Illustratively, the terminal device further includes a processing module, and when the base station is a 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 a current service and capability information of the serving cell; the sending module sends first indication information to the base station according to the second beam information; the first indication information includes: an identification of the second beam information or second beam information; when the base station is a 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 a current service and capability information of the neighboring cell; the sending module is configured to send first indication information to the base station according to the second beam information; the first indication information includes: an identification of the second beam information or second beam information.

Optionally, the processing module is specifically configured to instruct the sending module to send the first indication information to the base station 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 terminal device further includes a processing module, where 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, execute a random access procedure with the base station when a measurement result of the downlink signal is greater than the first preset threshold; the sending module is configured to send second indication information to the base station, where the second indication information is used to indicate the base station to stop sending the downlink signal by using second beam information; the second indication information includes: an identification of the first beam information or first beam information; the receiving module is further configured to continue receiving the downlink signal 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 smaller than a second preset threshold.

Optionally, the terminal device is a terminal device that is performing cell switching, and the base station is a base station where a serving cell is located; the sending module is further configured to report a measurement result of the downlink signal to the base station after the receiving module receives the downlink signal sent by the base station by using the second beam information; the receiving module is further configured to receive a handover command sent by the base station when the measurement result meets a cell handover condition; and the switching command is used for indicating the terminal equipment to access the target cell.

Optionally, the terminal device is a terminal device that is performing cell switching, and the base station is a base station where a 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 smaller than a first preset threshold.

The beneficial effects of the terminal device provided by the third aspect and each possible implementation manner of the third aspect may refer to the beneficial effects brought by each possible implementation manner of the first aspect and the first aspect, and are not described herein again.

A fourth aspect of the present invention provides a base station, including: the sending module is used for sending downlink signals to the terminal equipment by adopting the first beam information; a receiving module, configured to receive first indication information 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.

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

Illustratively, when the base station is a base station to which the serving cell belongs, the first indication information includes: the terminal equipment determines the second beam information or the identifier of the second beam information according to the delay level of the current service and the capability information of the serving cell; the sending module is specifically configured to send the downlink signal to the terminal device by using the 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; when the base station is a base station to which the neighboring cell belongs, the first indication information includes: the terminal equipment determines the second beam information or the identifier of the second beam information according to the delay level of the current service and the capability information of the adjacent cell; the sending module is specifically configured to send the downlink signal to the terminal device by using 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.

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; the processing module is configured to determine a coverage range corresponding to the second beam information according to the location information of the terminal device; the sending module is specifically 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 first indication information includes: a coverage range corresponding to the first beam information; the processing module is specifically configured to use a coverage area corresponding to the first beam information as a coverage area corresponding to the second beam information; 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 specifically configured to determine a coverage area corresponding to the first beam information through measurement of the first indication information, and use the coverage area corresponding to the first beam information as a coverage area corresponding to the second beam information; 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 specifically configured to receive first indication information 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 execute 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; the receiving module is configured to receive second indication information sent by the terminal device, where the second indication information is used to instruct the base station to stop sending the downlink signal by using second beam information; the second indication information includes: the first beam information or an identification of the first beam information.

Optionally, the terminal device is a terminal device that is performing cell switching, and the base station is a base station where a serving cell is located;

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

The beneficial effects of the base station provided by the fourth aspect and each possible implementation manner of the fourth aspect may refer to the beneficial effects brought by the first aspect and each possible implementation manner of the first aspect, and are not described herein again.

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

A sixth aspect of the present embodiment provides a base station, where the base station includes a processor and a memory, and the processor and the memory are connected by a bus; wherein the memory is to store computer-executable program code, the program code comprising instructions; the instructions, 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 embodiments of the present invention provides a terminal device, including at least one processing element (or chip) configured to perform the method of the first aspect.

An eighth aspect of embodiments of the present invention provides a base station, including at least one processing element (or chip) configured to perform the method of the second aspect.

A ninth aspect of embodiments of the present invention provides a program that, when executed by a processor, is configured to perform the method of the first aspect.

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

An eleventh aspect of embodiments of the present invention provides a program which, when executed by a processor, is configured to perform the method of the second aspect above.

A twelfth aspect of an embodiment of the present invention provides a program product, such as a computer-readable storage medium, including the program of the eleventh aspect.

According to the method for processing mobility of the terminal device, the terminal device and the base station provided by the embodiment of the invention, when the base station sends the downlink signal for mobility management of the terminal device to the terminal device by using the first beam information, the terminal device can send the first indication information to the base station, so that the base station can send the downlink signal to the terminal device again by using the second beam information. Namely, the base station can specifically send the downlink signal suitable for the terminal device to the terminal device according to the requirement of the terminal device, so that the manner of sending the downlink signal to the terminal device by the base station is increased, and the requirements of different terminal devices are met.

Drawings

Fig. 1 is an application scenario diagram provided in an embodiment of the present invention;

fig. 2 is a first schematic view of a beam scanning method according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a beam scanning method according to an embodiment of the present invention;

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

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

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

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

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

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

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

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

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

Detailed Description

In the embodiments of the present invention, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The terminal device according to the embodiments of the present invention may be a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), an Access Point (Access Point), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), a User Device (User Device), or a User Equipment (User Equipment).

The base station according to embodiments of the present invention may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, or an evolved Node B (eNB or e-NodeB) in LTE, and the present application is not limited thereto.

With the continuous development of communication technology, the existing wireless spectrum resources cannot meet the requirements of users in practical use, so in the future 5G communication system, a base station and a terminal device can communicate by using high-frequency signals, that is, a downlink signal sent by the base station to the terminal device and an uplink signal sent by the terminal device to the base station are both high-frequency signals.

Fig. 1 is an application scenario diagram provided in the embodiment of the present invention. As shown in fig. 1, since the attenuation of the high frequency signal is relatively large during transmission, in order to improve the coverage of the cell, in a future 5G communication system, the high frequency signal may be transmitted between the base station and the terminal device by using a beamforming method. The beam forming is a signal preprocessing technology based on an antenna array, that is, the beam forming can generate a beam with directivity by adjusting the weighting coefficient of each array element in the antenna array, so that obvious array gain can be obtained. Therefore, when the base station and the terminal equipment transmit the high-frequency signal by adopting the beam forming method, the coverage area of the large cell can be expanded, the throughput of the cell edge can be improved, and the like.

Fig. 2 is a first schematic view of a beam scanning method according to an embodiment of the present invention. Fig. 3 is a schematic diagram of a beam scanning method according to an embodiment of the present invention. As shown in fig. 2 and fig. 3, currently, when a base station broadcasts a downlink signal for mobility management of a terminal device by using a beamforming method, the base station may broadcast the downlink signal by using the single-beam scanning method shown in fig. 2 on a scanning subframe of a radio frame, and may also broadcast the downlink signal by using the multi-beam parallel scanning method shown in fig. 3. The scanning subframe is a radio subframe used for transmitting a downlink signal for mobility management of the terminal device, and the scanning subframe may be one radio subframe or may include multiple radio subframes.

As shown in fig. 2, when the base station transmits the downlink signal on the scanning subframe by using the single beam scanning method, the base station may transmit the downlink signal in one direction of the serving cell by using one beam on each symbol of the scanning subframe. Then, the base station continues to transmit the downlink signal to another direction of the serving cell by using a beam on a next symbol after the symbol until the downlink signal transmitted by the base station can cover the whole serving cell. Since the width of one beam corresponds to 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 subframes.

As shown in fig. 3, when the base station transmits the downlink signal on the scanning subframe by using the multi-beam parallel scanning method, the base station may transmit the downlink signal in multiple directions of the serving cell by using multiple beams on each symbol of the scanning subframe. Then, the base station continues to transmit the downlink signal to other multiple directions of the serving cell by using multiple beams on the next symbol after the symbol until the downlink signal transmitted by the base station can cover the whole 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 multiple non-adjacent beams (that is, any two beams are not adjacent, or only part of the beams are adjacent, and the other part of the beams are not adjacent). Fig. 3 is a schematic diagram illustrating that the base station transmits downlink signals to 4 adjacent directions of the serving cell by using 4 adjacent beams on each symbol of the scanning subframe.

According to the above description, compared with the method of transmitting the downlink signal by using the single-beam scanning mode, the method of transmitting the downlink signal by using the multi-beam parallel scanning mode improves the efficiency of broadcasting the downlink signal by the base station on the whole serving cell and reduces the time delay of broadcasting the downlink signal. However, when the base station transmits the downlink signal by using the multi-beam parallel scanning method, the base station transmits the downlink signal by using a plurality of beams for each symbol, which results in large power consumption of the base station.

Meanwhile, when the base station transmits the downlink signal by using the multi-beam parallel scanning manner or transmits the downlink signal by using the single-beam scanning manner, the base station may also use beams with different widths (i.e., different beam types). When the base station adopts a wider beam to send downlink signals, the base station can cover the coverage area of the whole service cell through a smaller number of beams, and the signaling overhead of the base station is reduced. However, when the base station transmits a signal by using a wider beam, the coverage of the beam (i.e., the length from the cell antenna) will be smaller than that of the narrower beam, so that the strength of the signal received by the terminal device located at the edge of the coverage of the cell will be reduced, and the probability of successfully receiving the downlink signal by the terminal device will be reduced.

In view of the above situation, the method for processing mobility of a terminal device according to the embodiments of the present invention is used to solve a technical problem of how a base station in a cell using a high frequency signal transmits a downlink signal to the terminal device.

The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated 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 invention. The embodiment relates to a specific process how a base station sends a downlink signal to a terminal device by using second beam information according to first indication information sent by the terminal device when the base station sends the downlink signal to the terminal device by using the first beam information. As shown in fig. 4, the method includes:

s101, the base station sends downlink signals to the terminal equipment by adopting the first beam information.

Specifically, the base station and the terminal device communicate with each other through a high-frequency signal and by using a beamforming method. In this embodiment, the base station currently uses the first beam information to transmit a downlink signal to the terminal device. The downlink signal may be a downlink signal used for the terminal device to perform mobility management, that is, based on the measurement of the downlink signal by the terminal device, the decision of the mobility behaviors such as cell residence, cell reselection, and cell handover may be performed. The downlink signal may be any one of the following: a synchronization channel, a Beam Reference Signal (BRS), a channel state information Reference Signal, and the like.

The first beam information may include information related to a beam, such as: beam type and/or beam scanning pattern, beam index or beam identification, etc. The beam type may include, for example, any one of a first beam type and 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, that is, the beam corresponding to the second beam type is narrower than the beam corresponding to the first beam type. The beam scanning system referred to herein may include, for example, a single beam scanning system or a multi-beam parallel scanning system. In addition, when the first beam information includes only a beam type, the beam scanning method related to the first beam information may be a predetermined beam scanning method, and when the first beam information includes only a beam scanning method, the beam type related to the first beam information may be a predetermined beam type.

Optionally, in another implementation manner of the embodiment of the present invention, the first beam information may include: downlink signal transmission power and/or downlink signal transmission period, etc. The beam type is related to the downlink signal transmission power, that is, the transmission power used by beams with different widths is different, so the transmission power of the downlink signal transmitted by the beams with different widths is also different. The beam scanning mode is related to the downlink signal transmission period, that is, the interval duration of downlink signals transmitted to the same direction by the base station is different in different scanning modes, so that the transmission periods of downlink signals transmitted by different scanning modes are different. In addition, when the first beam information includes only downlink signal transmission power, the downlink signal transmission period related to the first beam information may be a preset downlink signal transmission period, and when the first beam information includes only downlink signal transmission period, the downlink signal transmission power related to the first beam information may be a preset downlink signal transmission power.

And S102, the terminal equipment receives the downlink signal.

S103, the terminal equipment sends first indication information to the base station according to the downlink signal sent by the first beam information.

Specifically, after receiving the downlink signal transmitted by the base station using the first beam information, the terminal device may transmit first indication information to the base station according to the downlink signal transmitted by using the first beam information, so as to indicate the base station to transmit the downlink signal to the terminal device using the second beam information. The second beam information may be different beam information from the first beam information.

Optionally, when the first beam information includes a beam type and/or a beam scanning manner, the second beam information may be different from the beam type and/or the beam scanning manner included in the first beam information. That is, the second beam information may be different from a beam type carried in the first beam information. Alternatively, the second beam information and the first beam information may be different from each other in a beam scanning manner. Alternatively, the second beam information may be different from the first beam information in both of the beam type and the beam scanning manner. The present embodiment does not limit how the terminal device instructs the base station to transmit the downlink signal to the terminal device by using the second beam information through the first indication information. For example: the terminal device may carry the beam type and/or the beam scanning manner included in the second beam information in the first indication information to instruct the base station to transmit the downlink signal to the terminal device by using the second beam information. The terminal device may further carry index information of a beam type and/or index information of a beam scanning manner included in the second beam information in the first indication information, so as to instruct the base station to transmit the downlink signal to the terminal device by using the second beam information. The terminal device may further carry index information of the second beam information in the first indication information to instruct the base station to transmit the downlink signal and the like to the terminal device by using the second beam information.

Optionally, when the first beam information includes downlink signal transmission power and/or a downlink signal transmission period, the second beam information may be different from the downlink signal transmission power and/or the downlink signal transmission period included in the first beam information. That is, the downlink signal transmission power carried in the second beam information is different from the downlink signal transmission power carried in the first beam information. Or, the second beam information and the first beam information may have different downlink signal transmission periods. Or, the downlink signal transmission power and the downlink signal transmission period carried in the second beam information and the first beam information are different, and the like.

S104, the base station receives the first indication information.

And S105, the base station sends downlink signals to the terminal equipment by adopting the second beam information.

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

Taking the example that the first beam information and the second beam information include different beam types, it is assumed that the first beam information includes the first beam type and the second beam information includes the second beam type. And the transmitting angle of the beam corresponding to the second beam type is smaller than the transmitting angle of the beam corresponding to the first beam type. I.e. the beam corresponding to the second beam type is narrower than the beam corresponding to the first beam type. At this time, since the intensity of a signal transmitted by the base station using a narrower beam is higher, even if the base station uses the same transmission power, the intensity of a signal received by the terminal at a certain position is higher than that of a wider beam due to the beam directivity gain; therefore, the signal intensity of the base station when the downlink signal is transmitted by adopting the second beam type is higher than that when the downlink signal is transmitted by adopting the first beam type, and the probability of successfully receiving the downlink signal by the terminal equipment is improved. Accordingly, 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 may use a smaller number of beams to transmit the downlink signal to the entire serving cell when the base station transmits the downlink signal using the first beam type, the signaling overhead of the base station when the base station transmits the downlink signal using the first beam type is lower than the signaling overhead of the base station when the base station transmits the downlink signal using the second beam type, which reduces the signaling overhead of the base station.

Taking the example that the beam scanning modes included in the first beam information and the second beam information are different, it is assumed that 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 in the multi-beam parallel scanning manner, the base station can transmit the downlink signal to multiple directions of the serving cell at one time, so that the time for the terminal device to receive the downlink signal transmitted by the base station is shortened, the efficiency for the terminal device to receive the downlink signal is improved, and the time delay for the terminal device to receive the downlink signal is reduced. Accordingly, if the first beam information includes a multi-beam parallel scanning scheme and the second beam information includes a single-beam scanning scheme, in this case, the base station may transmit the downlink signal to one direction of the serving cell with only one beam at a time, so that power consumption of the base station may be reduced.

Taking as an example that the first beam information and the second beam information include different beam types and beam scanning manners, it is assumed that the first beam information includes the first beam type and a single beam scanning manner, and the second beam information includes the second beam type and a multi-beam parallel scanning manner. At this time, because the signal intensity of the base station when the base station transmits the downlink signal by using the second beam type is higher than the intensity of the base station when the base station transmits the downlink signal by using the first beam type, and when the base station transmits the downlink signal by using the multi-beam parallel scanning manner, the time for the terminal device to receive the downlink signal transmitted by the base station is shortened, therefore, the probability that the terminal device successfully receives the downlink signal can be increased, the efficiency for the terminal device to receive the downlink signal can also be increased, and the time delay for the terminal device to receive the downlink signal is reduced.

For the case that 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, the beam type corresponds to the downlink signal transmission power one to one, and the beam scanning mode corresponds to the downlink signal transmission period one to one. Therefore, the base station sends the downlink signal to the terminal device by using the second beam information, which may specifically refer to the above-mentioned beneficial effect that the base station sends the downlink signal when the beam types and/or beam scanning modes included in the first beam information and the second beam information are different, and is not described herein again.

By the method, the base station can adopt different beam information to send the downlink signal to the terminal equipment according to the first indication information sent by the terminal equipment. That is, the base station can specifically transmit the downlink signal suitable for the terminal device to the terminal device according to the requirement of the terminal device, so as to avoid the situation that when the base station transmits the downlink signal by using one beam information for all the terminal devices of the serving cell, part of the terminal devices cannot correctly receive the signal or the signal received by the terminal device cannot meet the requirement of time delay, or the situation that the overhead and hardware cost of the base station are increased.

And S106, the terminal equipment receives the downlink signal.

Specifically, after receiving the downlink signal sent by the base station using the second beam information, the terminal device may make decisions on mobility behaviors 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 invention is described by taking two different beam information as an example, and the case of more beam information is also supported.

In the method for processing mobility of the terminal device provided in the embodiment of the present invention, when the base station sends the downlink signal for 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, so that the base station may send the downlink signal to the terminal device again by using the second beam information. Namely, the base station can specifically send the downlink signal suitable for the terminal device to the terminal device according to the requirement of the terminal device, so that the manner of sending the downlink signal to the terminal device by the base station is increased, and the requirements of different terminal devices are met.

Fig. 5 is a signaling flowchart of another method for processing mobility of a terminal device according to an embodiment of the present invention. The present embodiment relates to a specific process in which a base station sends capability information of a serving cell and capability information of an adjacent cell to a terminal device before the base station sends a downlink signal to the terminal device by using 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 service cell and the capability information of the adjacent cell to the terminal equipment by adopting the first beam information.

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

When the first beam information and the second beam information include: when the downlink signal transmission power and/or the downlink signal transmission period are/is, the capability information of the serving cell may include at least one of the following information: the mapping relationship between the downlink signal transmission power and the delay level supported by the serving cell, the mapping relationship between the downlink signal transmission period and the delay level supported by the serving cell, or the mapping relationship only including the mapping relationship between the downlink signal transmission period and the delay level supported by the serving cell may be specifically determined according to the system configuration. The capability information of the neighboring cell may include at least one of the following information: the mapping relationship between the downlink signal transmission power and the delay level supported by the neighboring cell, and the mapping relationship between the downlink signal transmission period and the delay level supported by the neighboring cell may be specifically determined according to the system configuration.

Specifically, in this embodiment, before the base station uses the first beam information to send the downlink signal to the terminal device, the base station may first 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. Optionally, the base station may send the capability information of the serving cell and the capability information of the neighboring cell to the terminal device through Radio Resource Control (RRC) signaling by using the first beam information. The base station may further send the capability information of the serving cell and the capability information of the neighboring cell to the terminal device through a broadcast message using the first beam information. The base station may further transmit one of the capability information to the terminal device through RRC signaling, and transmit the other capability information to the terminal device through a broadcast message, using the first beam information. In this embodiment, how the base station acquires the capability information of the neighboring cell is not limited, for example: the base station can interact with the base stations of other cells through interfaces among the base stations so as to acquire the capability information of the other cells.

S202, the terminal equipment receives the capability information of the serving cell and the capability information of the adjacent 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 determine, according to the delay level of its current service and the capability information of the serving cell or the capability information of the neighboring cell, which kind of beam information the terminal device needs to receive the downlink signal sent by using, so that the base station may send the downlink signal by using the beam information adapted to the terminal device.

When the base station is a base station to which the serving cell belongs, the terminal device may determine, before sending the first indication information to the base station, second beam information according to the delay level of the current service of the terminal device and the capability information of the serving cell, so that when the terminal device sends the first indication information to the base station according to the second beam information, the terminal device may send the second beam information or an identifier (for example, index information, a preset number representing the second beam information, or the like) of the second beam information to the base station by carrying the second beam information or the identifier of the second beam information in the first indication information, so as 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 send the downlink signal to the terminal device again by using the second beam information determined by the terminal device according to the delay level of the current service, so that the delay of the terminal device when receiving the downlink signal may meet the requirement of the current service of the terminal device.

When the base station is a base station to which the neighboring cell belongs, that is, when the base station is not a base station to which a cell currently serving the terminal device belongs, the terminal device may determine, before sending the first indication information to the base station, second beam information according to a delay level of a current service of the terminal device and capability information of the neighboring cell, so that when the terminal device sends the first indication information to the base station according to the second beam information, the terminal device may send the first indication information to the base station by carrying the second beam information or an identifier (for example, index information, a preset number representing the second beam information, and the like) of the second beam information in the first indication information, so as 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 send the downlink signal to the terminal device again by using the second beam information determined by the terminal device according to the delay level of the current service, so that the delay of the terminal device when receiving the downlink signal may meet the requirement of the current service of the terminal device.

Optionally, in another implementation manner of the embodiment of the present invention, if the base station and the terminal device already constrain the second beam information, the base station may not send the capability information of the serving cell and the capability information of the neighboring cell to the terminal device before sending the downlink signal to the terminal device by using the first beam information. Therefore, after receiving the first indication information sent by the terminal equipment, the base station can directly adopt the preset second beam information to resend the downlink signal to the terminal equipment, so that when the terminal equipment receives the downlink signal sent by adopting the second beam information, the time delay of the terminal equipment for receiving the downlink signal can still meet the requirement of the terminal equipment on the current service, the requirement of the terminal equipment on the time delay is met, meanwhile, the signaling interaction between the terminal equipment and the base station can be reduced, and the communication efficiency is improved.

Optionally, in another implementation manner of the embodiment of the present invention, the terminal device may further send 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, for example: beam type, beam scanning mode, downlink signal transmission power, downlink signal scanning period and the like. Therefore, after the base station receives the capability information sent by the terminal equipment, the base station can automatically select the beam information adaptive to the terminal equipment according to the capability information of the terminal equipment and the current wireless condition of the terminal equipment, and send the downlink signal to the terminal equipment, so that the terminal equipment can correctly receive the downlink signal, and the success rate of the terminal equipment for receiving the downlink signal is improved.

In the method for processing mobility of the terminal device provided in the embodiment of the present invention, before the base station sends the downlink signal for 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 and the capability information of the neighboring cell to the terminal device, so that the terminal device may determine, according to the delay level of its current service and the capability information of the cell corresponding to the base station, the second beam information to be used by the base station, and send the second beam information to the base station by carrying the second beam information in the first indication information, so that the base station may send the downlink signal to the terminal device again by using the second beam information, and thus the delay when the terminal device receives the downlink signal may satisfy the requirement of the current service of the terminal device.

The following describes a method for processing mobility of a terminal device according to an embodiment of the present invention with reference to several specific examples.

Example one, the terminal device is a terminal device that is performing cell camping (i.e. an Idle-state terminal device). Fig. 6 is a signaling flowchart of another method for processing mobility of a terminal device according to an embodiment of the present invention. In this example, the first beam information includes a first beam type and the second beam information includes a second beam type. I.e. 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, the beam corresponding to the second beam type is narrower than the beam corresponding to the first beam type. The downlink signal is a BRS. The embodiment relates to a specific process how a base station transmits a downlink signal to a terminal device by using second beam information according to first indication information transmitted by the terminal device. As shown in fig. 6, the method includes:

s301, the base station sends BRS to the terminal equipment by adopting 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. Wherein, the beam corresponding to the first beam type included in the first beam information is wider. Since 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 area of the whole serving cell by using a small number of beams, thereby reducing the signaling overhead of the base station.

And S302, the terminal equipment receives the BRS.

And S303, the terminal equipment sends first indication information to the base station according to the BRS sent by adopting 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 a first preset threshold. The first preset threshold is used to determine whether the current cell meets the camping condition, and therefore, the first preset threshold may be specifically determined according to a threshold of any measurement parameter of the cell reference signal. For example: the first predetermined threshold may be a threshold of a Reference Signal Receiving Power (RSRP), and the first predetermined threshold may be a threshold of a Reference Signal Receiving Quality (RSRQ).

Thus, after the terminal device in the Idle state receives the BRS sent by the base station by using the first beam information, the terminal device can measure the BRS by using the existing measurement mode. If the measurement result of the BRS is greater than the first preset threshold, it indicates that the BRS signal strength currently received by the terminal device is relatively high or the quality is relatively good, that is, the current cell meets the camping condition. At this time, the terminal device may select the cell to camp on, that is, the terminal device may directly initiate a cell camping 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 strength currently received by the terminal device is weak or the quality is poor, and the condition of cell residence 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 send the BRS to the terminal device again using the second beam information, that is, send the BRS again using a beam narrower than the beam corresponding to the current beam type. Since the narrower the beam, the higher the transmit power of the beam. Therefore, by the method, the situation that when the base station transmits the BRSs by using wider beams, the BRSs are weaker in strength due to the wider beams, so that the measurement result of the BRSs by the terminal equipment cannot meet the cell residence condition, and the terminal equipment cannot reside can be avoided.

It should be noted that, this 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 first indication information to the base station immediately after determining that the measurement result of the BRS is less than or equal to the first preset threshold. The terminal device may also continuously measure the BRS sent by the base station within a preset time duration, and send the first indication information to the base station if the BRS measurement result is still smaller than the first preset threshold when the preset time duration is reached. The terminal device may also send the first indication information to the base station before the random access procedure needs to be performed.

Optionally, if the terminal device may receive the BRS signal sent by the base station, in addition to the BRS signal sent by the base station, the terminal device may also receive BRS signals sent by base stations belonging to other cells. However, the terminal device measures BRS signals transmitted by base stations to which the plurality of cells belong at present, and determines that none of the plurality of cells satisfies the camping condition. At this time, the terminal device may send the first indication information in a broadcast manner, so that both the current base station and the base stations belonging to other cells can receive the first indication information, and thus both the base stations can send the BRS of the cell under the jurisdiction of the terminal device to the terminal device by using the second beam information. In this case, the second beam information may be a beam information preset on all base stations.

Optionally, the terminal device may also send the first indication information only to the 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 using the first beam information, the terminal device may further determine the second beam information according to the delay level of the current service and the capability information of the current cell, and send the second beam information or the index information of the second beam information to the base station by carrying the second beam information or the index information of the second beam information in the first indication information. 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 using the first beam information, the first indication information sent by the terminal device to the base station may be used to indicate the second beam information used by the base station to send the BRS to the terminal device.

S304, the base station receives the first indication information.

And S305, the base station sends the BRS to the terminal equipment by adopting the second beam information.

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

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

Optionally, the base station may also determine the location information of the terminal device in an existing manner, so that the base station may determine the coverage area (i.e., the area where the terminal device is located) corresponding to the second beam information according to the location information of the terminal device. After determining the coverage area corresponding to the second beam information, the base station may directly transmit the BRS (i.e., downlink signal) to the terminal device using the second beam information within the coverage area corresponding to the second beam information, and still transmit the BRS using the first beam information within other coverage areas of the cell, so as to reduce signaling overhead of the base station.

Optionally, the base station may further determine a coverage range corresponding to the first beam information by measuring the first indication information, and use the coverage range corresponding to the first beam information as a coverage range corresponding to the second beam information. After determining the coverage area corresponding to the second beam information, the base station may directly transmit the BRS (i.e., downlink signal) to the terminal device using the second beam information within the coverage area corresponding to the second beam information, and still transmit the BRS using the first beam information within other coverage areas of the cell. How to determine the coverage area corresponding to the first beam information by the base station through measurement of the first indication information may specifically refer to the prior art.

Optionally, if the first indication information includes a coverage range corresponding to the first beam information, after receiving the first indication information, the base station may use the coverage range corresponding to the first beam information as a coverage range corresponding to the second beam information, and further send the BRS to the terminal device using the second beam information in the coverage range corresponding to the second beam information, and still send the BRS using the first beam information in other coverage ranges of the cell.

S306, the terminal equipment receives the BRS.

And S307, the terminal equipment and the base station execute a random access process when the measurement result of the BRS is greater than a first preset threshold value.

Specifically, after receiving the BRS sent by the base station using the second beam information, if the terminal device determines that the measurement result of the BRS is greater than the first preset threshold through measurement of the BRS, it indicates that the BRS signal strength currently received by the terminal device is higher or the quality of the BRS signal is better, that is, the current cell meets the camping condition. At this time, the terminal device may select the cell to camp on, that is, the terminal device may perform a cell camping procedure with the base station according to the system information of the cell (the cell camping procedure is the prior art, and is not described here again). The system information may be system information transmitted by the base station while transmitting the BRS using the first beam information, or may be system information transmitted by the base station while transmitting the BRS using the second beam information. The system information may include information required for performing cell camping, for example: 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 invention, the system information may further include: one or more of a beam type, a beam scanning pattern, a transmission period of a beam, a switching time of different beam types, and the like in the first beam information. By the method, when the terminal equipment needs to receive the BRS sent by the base station for multiple times, the terminal equipment can estimate when the base station sends the BRS to the area where the terminal equipment is located based on the information, so that the terminal equipment can monitor the BRS only when the base station sends the BRS to the area, the BRS obtaining efficiency of the terminal equipment is improved, and the power consumption of the terminal equipment is reduced. In another implementation manner of the embodiment of the present invention, the base station may also represent the beam type by using different BRSs, for example: the beam type of the current beam is represented by one or more of different BRS sequences, time-frequency domain resources, beam identifications, and the like.

Optionally, the terminal device and the base station may execute a random access procedure and simultaneously transmit second indication information to the base station, where the second indication information may include the first beam information or an identifier of the first beam information (e.g., index information, a preset number indicating the first beam information, etc.) to instruct the base station to stop transmitting the BRS (i.e., the downlink signal) using the second beam information. Thus, after the base station receives the second indication information, the base station may stop transmitting the BRS using the second beam information, and continue transmitting the BRS in the cell coverage using the first beam information. Because the beam corresponding to the first beam type included in the first beam information is wider and the wider the beam, the coverage area of the beam is larger, when the base station transmits the BRS by using the first beam type, the base station can cover the coverage area of the whole serving cell by using a smaller number of beams, thereby reducing the signaling overhead of the base station. In this way, after the terminal device camps in the cell, the terminal device may continuously receive, in real time or periodically, the BRS (i.e., the downlink signal) transmitted by the base station using the first beam information. When the measurement result of the BRS of the cell by the terminal device is smaller than the second preset threshold, the first indication information may be sent again to the base station where the current cell is located and/or the base station where the neighboring cell is located, that is, the above-mentioned S303-S307 is executed again, so that the terminal device may reselect a suitable cell for camping according to the new measurement result.

The above example is a processing method of terminal device mobility, which is exemplified by that the first beam information and the second beam information include different beam types. However, as can be understood by those skilled in the art, when the first beam information and the second beam information include a beam type and a beam scanning manner, or only include a beam scanning manner, the terminal device may further trigger the base station to transmit the BRS to the terminal device by using the second beam information that satisfies the delay level of the current service of the terminal device according to the delay level of the current service and the capability information of the current cell when the base station uses the first beam information to transmit the BRS, and when the terminal device determines that the received BRS cannot satisfy the delay level of the current service, the terminal device may further trigger the base station to transmit the BRS to the terminal device by using the second beam information that satisfies the delay level of the current service of the terminal device, so that the delay of the terminal device when receiving the downlink signal may satisfy the requirement of the current service of the terminal device.

It can be understood that the first indication information and the second indication information may also be the same message, where the message is used to instruct the terminal device to perform the switching of the beam information, for example, when the base station receives the indication information when using the first beam information, the base station switches to transmit the downlink signal using the second beam information. And when the base station receives the indication information when adopting the second beam information, switching to adopt the first beam information to send the downlink signal. The first indication information and the second indication information may be beam information directly indicating 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 transmits the downlink signal according to the beam information indicated by the first indication information or the second indication information. For different terminal devices, the base station may transmit downlink signals using the same beam information or different beam information. For example, the downlink signal is transmitted using the first beam information for both the terminal device 1 and the terminal device 2, or the downlink signal is transmitted using the first beam information for the terminal device 1 and the downlink signal is transmitted using the second beam information for the terminal device 2.

It should be noted that, the above 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. Those skilled in the art can understand that, the base station may also directly decide whether to transmit the BRS to the terminal device by using the second beam information based on the measurement result of the uplink beam reference signal transmitted by the terminal device. When the base station determines that the second beam information needs to be used for sending the BRS to the terminal device, the base station may directly use the second beam information to send the BRS to the terminal device, and may also send indication information to the terminal device to indicate the terminal device to send the first indication information to the base station, to indicate the base station to send the BRS to the terminal device using the second beam information, and the like.

In the method for processing mobility of a terminal device provided in the embodiment of the present invention, for a terminal device that is performing cell residence, when a base station uses first beam information to send a downlink signal used for mobility management of the terminal device to the terminal device, and when a measurement result of the downlink signal does not satisfy a cell residence condition, the terminal device may send first indication information to the base station, so that the base station may send the downlink signal to the terminal device again using second beam information that is narrower than a beam corresponding to the first beam information, so that the terminal device may perform a cell residence process with the base station according to the measurement result of the downlink signal. By the method, the terminal equipment can trigger the base station to transmit the downlink signal by adopting different beam information based on the wireless condition of the terminal equipment, and the base station does not need to always adopt a narrower beam to transmit the downlink signal in the coverage area of the service cell, so that the signaling overhead and the cost of the base station are reduced, the terminal equipment with different wireless conditions can successfully finish cell residence, and the success rate of the cell residence of the terminal equipment is improved.

Example two, the terminal device is a terminal device that is performing cell handover. Fig. 7 is a signaling flowchart of another method for processing mobility of a terminal device according to an embodiment of the present invention. In this example, the first beam information includes a first beam type and a single beam scanning pattern, and the second beam information includes a second beam type and a multi-beam scanning pattern. The downlink signal is a BRS. The embodiment relates to a specific process how a base station transmits a downlink signal to a terminal device by using second beam information according to first indication information transmitted by the terminal device. As shown in fig. 7, the method includes:

s401, the base station sends BRS to the terminal equipment by adopting 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. Since 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 area of the whole serving cell by using a small number of beams, thereby reducing the signaling overhead of the base station. Meanwhile, the beam scanning mode corresponding to the first beam information is a single beam scanning mode, that is, the base station only sends one beam on one symbol of the scanning subframe, so that the power consumption of the base station is low.

S402, the terminal equipment receives the BRS.

And S403, the terminal equipment sends first indication information to the base station according to the BRS sent by adopting the first beam information.

Optionally, after receiving the BRS 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 a measurement result of the BRS is less than or equal to a first preset threshold. The first preset threshold is used for judging whether the terminal equipment needs to perform cell switching. Therefore, the first preset threshold may be specifically determined according to a threshold 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, and the like. It should be noted that the size of the first preset threshold here may be the same as or different from that of the first preset threshold in the first example, and may specifically be determined according to the cell handover condition and the cell camping condition.

Thus, 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 the existing measurement mode. If the measurement result of the BRS is greater than the first preset threshold, it indicates that the BRS signal strength currently received by the terminal device is relatively high or the quality is relatively good, that is, the terminal device can still be maintained in the current cell without performing handover. That is, the terminal device does not currently satisfy the handover condition, and the terminal device may 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, it indicates that the BRS signal strength currently received by the terminal device is weak or the quality is poor, and indicates that the terminal device may have moved to the edge of the current cell, that is, the terminal device is close to the condition for 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, that the BRS sent by the base station using the second beam information needs to be received. In this example, the second beam information includes: a second beam type and a multi-beam parallel scan pattern. In this way, the terminal device may send the first indication information carrying the second beam information to the base station to indicate the base station to send the BRS to the terminal device again by using the second beam information; the terminal may also carry beam index information to instruct the base station to transmit BRSs to the terminal device in the specified one or more beams using the second beam information. That is, the BRS is retransmitted using a narrower beam than the beam corresponding to the current beam type and a faster beam scanning method (i.e., a multi-beam parallel scanning method). Because the narrower the beam, the higher the transmitting power of the beam, and simultaneously, the multi-beam parallel scanning mode is adopted to transmit the BRS, the terminal equipment can receive the BRS more quickly. Therefore, by the method, the base station can adopt the first beam information to send the BRS to the terminal equipment before the terminal equipment meets the switching condition, so that the beam scanning overhead of the base station is reduced. And when the terminal equipment approaches the cell switching condition, triggering the base station to send the BRS according to the second beam information, thereby being beneficial to the terminal equipment to acquire the measurement result of the BRS more quickly so as to accelerate the process of switching judgment.

S404, the base station receives the first indication information.

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

Specifically, after receiving the first indication information, when the base station determines that the BRS needs to be sent to the terminal device by using the second beam information, the base station may further send the first indication information to the base station where the one or more target cells are located, so that the base station where the one or more target cells are located may send the BRS of the one or more target cells to the terminal device by using the second beam information. The base station may further carry the beam index information to instruct the base station where the target cell is located to transmit the BRS to the terminal device in the specified one or more beams by using the second beam information. Therefore, the terminal equipment can quickly acquire the BRS of the current serving cell and the BRS of the target cell, so that the terminal equipment can quickly acquire the measurement results of the BRS of the current serving cell and the BRS of the target cell, and the cell switching speed of the terminal equipment is increased.

S406, the base station sends the BRS to the terminal equipment by adopting the second beam information.

How the base station sends the BRS to the terminal device by using the second beam information is specifically described in S305, and details thereof are not repeated.

S407, the terminal equipment receives the BRS sent by the base station.

S408, the base station to which the target cell belongs sends BRS to the terminal equipment by adopting the second beam information.

How the base station to which the target cell belongs sends the BRS to the terminal device by using the second beam information is specifically described in S305, which is not described again.

S409, the terminal equipment receives the BRS sent by the base station to which the target cell belongs.

The execution sequence of the above-mentioned S408-S409 and S406-S407 is not limited.

And S410, the terminal equipment 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 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 report the measurement result of the BRS to the base station to which the current serving cell belongs based on the measurement of the BRSs. Wherein 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 handed over based on the measurement result sent by the terminal device.

S411, the base station sends a switching request message to the base station of the target cell.

Specifically, when the base station to which the current serving cell belongs determines that the terminal device needs to be handed over based on the measurement result sent by the terminal device, the base station may send a handover request message to the base station to which the target cell belongs, so as to instruct the base station to which the target cell belongs to feed back the radio resource configuration information prepared for the terminal device.

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

S412, the base station to which the target cell belongs sends a switching 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 for the terminal device by the base station to which the target cell belongs.

Optionally, if the handover request message carries handover delay requirement information of the terminal device, the handover response message may further include: the downlink measurement beam configuration information of the target cell (for example, the beam type, the beam direction, the number of beams simultaneously transmitted, the beam scanning mode, the measurement subframe, the mapping relationship between the measurement subframe (or the measurement symbol) and the beam identifier, etc.). The information can be used for the terminal device to measure the target cell and/or for the terminal device to perform beam training during accessing the target cell. For example: in the random access process, the terminal equipment sends a random access preamble message to the base station, and the base station sends a random access response message to the terminal equipment, wherein the base station uses which beam type and which beam scanning mode.

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 to which the target cell belongs according to information in the handover response message. By the method, the base station to which the target cell belongs can execute the random access process with each terminal device by adopting different beam information according to the switching time delay of each terminal device, so that the base station can meet the requirement of each terminal device on the time delay. Optionally, if multiple terminal devices are located in the same beam coverage area in the target cell, the base station may determine the beam information to be used based on the terminal device with the highest delay requirement.

Optionally, in another implementation manner of the embodiment of the present invention, in the step S405 may be further replaced by the following steps: and the terminal equipment sends 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 by itself, so as 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 transmit the BRS and the like by using the second beam information. In this implementation, after receiving the BRS sent by the base station to which the current serving cell belongs using the second beam information and the BRS sent by the base station to which the one or more target cells belong using the second beam information, the terminal device may determine, by itself, whether handover is required 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 handover is required, the terminal device may select a target cell with the best radio condition from the one or more target cells, and initiate a random access procedure to the target cell, so as to send a radio link reestablishment request message to the target cell through the random access procedure, thereby completing access of the target cell.

In the method for processing mobility of the terminal device provided in the embodiment of the present invention, for the terminal device that is performing cell switching, when the base station uses the first beam information to send the downlink signal used for mobility management of the terminal device to the terminal device, the terminal device may determine, in the measurement result of the downlink signal, that the terminal device is close to the condition of cell switching, and send the first indication information to the base station, so that the base station may use the second beam information that is narrower than the beam corresponding to the first beam information and that is faster in scanning mode, and resend the downlink signal to the terminal device, so that it may be determined whether to perform cell switching according to the measurement result of the downlink signal by the terminal device. By the method, the base station can adopt the first beam information to send the downlink signal to the terminal equipment before the terminal equipment meets the switching condition, so that the beam scanning overhead of the base station is reduced. When the terminal equipment approaches the cell switching condition, the base station is triggered to send the downlink signal according to the second beam information, so that the terminal equipment can acquire the measurement result of the downlink signal more quickly, the switching judgment process is accelerated, and the requirement of the terminal equipment on time delay is met.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 8, the terminal device may include: a receiving module 11 and a transmitting module 13; optionally, the terminal device may further include: a processing module 12; wherein the content of the first and second substances,

a receiving module 11, configured to receive a downlink signal sent by a base station by using first beam information; optionally, the downlink signal includes at least one of: synchronizing channel, beam reference signal BRS;

the sending module 13 is configured to send first indication information to the base station; the first indication information is used for indicating the base station to adopt the second beam information to send downlink signals to the terminal equipment;

the receiving module 11 is further configured to receive a downlink signal 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, hardware, or a combination of software and hardware. Taking the receiving module 11, the processing module 12, and the transmitting module 13 implemented by hardware as an example, the transmitting module 13 may be a transmitter, the processing module 12 may be a processing component (e.g., a processor), and the receiving module 11 may be a receiver.

The terminal device may be configured to perform the steps on the terminal device side in the foregoing method embodiment, and the specific implementation manner and the technical effect are similar and will not be described again here.

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

In this implementation manner, when the base station is a base station to which the serving cell belongs, the processing module 12 may be specifically 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; the first indication information includes: second beam information or identification of second beam information. When the base station is a base station to which the serving cell belongs, the processing module 12 may be specifically configured to determine second beam information according to a delay level of a current service and capability information of an adjacent cell; the sending module 13 sends the first indication information to the base station according to the second beam information; the first indication information includes: second beam information or identification of second beam information.

Optionally, the sending module 13 is specifically 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 a 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 execute a random access procedure with the base station after the receiving module 11 receives a downlink signal sent by the base station using the second beam information and when a measurement result of the downlink signal is greater than a first preset threshold; the sending module 13 sends the second indication information to the base station. The second indication information is used for indicating the base station to stop sending the downlink signal by adopting the second beam information; the second indication information includes: an identification of the first beam information or the first beam information; the receiving module 11 is further configured to continue to receive a downlink signal sent by the base station by using the first beam information; the sending module 13 is further configured to send the first indication information to the base station again when the measurement result of the downlink signal is smaller than the second preset threshold.

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

In this implementation, when the terminal device is a terminal device that is performing cell switching, the base station is a base station where the target cell is located; the sending module 13 is specifically 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 smaller than a first preset threshold.

Fig. 9 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in fig. 9, the base station may include: a transmitting module 22 and a receiving module 23; optionally, the base station may further include: a processing module 21; wherein the content of the first and second substances,

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

a receiving module 23, configured to receive first indication information sent by a terminal device, where the first indication information is used to indicate a base station to send a downlink signal to the terminal device by using second beam information;

the sending module 22 is further configured to send a 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, hardware, or a combination of software and hardware. Taking the receiving module 23, the processing module 21, and the transmitting module 22 implemented by hardware as an example, the transmitting module 22 may be a transmitter, the processing module 21 may be a processing component (e.g., a processor), and the receiving module 23 may be a receiver.

The base station may be configured to perform the steps at the terminal base station side in the foregoing method embodiment, and the specific implementation manner and the technical effect are similar and will not be described again here.

Optionally, at least one of a beam type and a beam scanning manner included in the first beam information and the second beam information is different; the beam type includes any of the following: the antenna comprises a first beam type and a second beam type, wherein the transmitting angle of a beam corresponding to the second beam type is smaller than the transmitting angle of a beam corresponding to the first beam type; the beam scanning mode includes any one of the following: single beam scanning mode, multi-beam parallel scanning mode.

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

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

Optionally, if the sending module 22 does not 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, after the receiving module receives the first indication information sent by the terminal device, the sending module 22 may send the downlink signal to the terminal device by using the preset second beam information.

When the downlink signal is sent to the terminal device by using the second beam information, the processing module 21 may determine a coverage area corresponding to the second beam information according to the location information of the terminal device; the sending module 22 sends the downlink signal to the terminal device by using the second beam information in the coverage area corresponding to the second beam information. Optionally, when the first indication information includes a coverage range corresponding to the first beam information, the coverage range corresponding to the first beam information may be used as a coverage range corresponding to the second beam information, and the sending module 22 sends the downlink signal to the terminal device by using the second beam information in the coverage range corresponding to the second beam information. Optionally, the processing module 21 may further determine a coverage range corresponding to the first beam information by measuring the first indication information, and use the coverage range corresponding to the first beam information as a coverage range 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 in the coverage range corresponding to the second beam information.

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

In this implementation manner, when the terminal device is a terminal device that is performing cell camping, the processing module 21 may be further configured to perform a random access procedure with the terminal device after the sending module 22 sends the downlink signal to the terminal device by using the second beam information; the receiving module 23 is configured to receive second indication information sent by the terminal device, where the second indication information is used to instruct the base station to stop sending the downlink signal by using the second beam information; the second indication information includes: the first beam information or the identification of the first beam information.

In this implementation manner, when the terminal device is a terminal device performing cell switching and the base station is a base station where a serving cell is located, the receiving module 23 is further configured to receive a measurement result of a downlink signal reported by the terminal device after the sending module 22 sends the downlink signal to the terminal device by using the second beam information; the sending module 22 is further configured to send a handover command to the terminal device when the measurement result meets 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. At this time, the sending module 22 may be further configured to send the first indication information to the base station where the target cell is located after the receiving module 23 receives the first indication information sent by the terminal device.

It should be noted that the division of the modules of the terminal device and/or the base station is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the processing module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and may be called by a processing element of the terminal device and/or the base station to execute the functions of the processing module. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the 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 (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together 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 invention. 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, etc.

The memory 34, the transmitter 32 and the receiver 33 and the processor 31 may be connected by a bus. Of course, in practical applications, the memory 34, the transmitter 32, the receiver 33 and the processor 31 may be not in a bus structure, but may be in other structures, such as a star structure, and the present application is not limited in particular.

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

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

Alternatively, the memory 34 may include one or more of ROM, RAM, and disk memory. The memory 34 is used for storing data and/or instructions required by the processor 31 in operation. The number of the memory 34 may be one or more.

The processor 31 is configured to execute the instruction stored in the memory 34, and when the processor 31 executes the instruction stored in the memory 34, the processor 31 is enabled to execute the method for processing mobility of the terminal device executed by the terminal device, which is not described herein again.

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

The memory 44, the transmitter 42 and the receiver 43 and the processor 41 may be connected by a bus. Of course, in practical applications, the memory 44, the transmitter 42, the receiver 43 and the processor 41 may be in other structures than a bus structure, such as a star structure, and the present application is not limited in particular.

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

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

Alternatively, memory 44 may include one or more of ROM, RAM, and disk memory. Memory 44 is used to store data and/or instructions required by processor 41 during operation. The number of the memory 44 may be one or more.

The processor 41 is configured to execute the instruction stored in the memory 44, and when the processor 41 executes the instruction stored in the memory 44, the processor 41 is enabled to execute the method for processing mobility of the terminal device executed by the base station, which is not described herein again.

As described in the foregoing embodiment, the terminal device according to the embodiment of the present invention may be a wireless terminal such as a mobile phone and a tablet computer, and therefore, taking the terminal device as a mobile phone as an example: fig. 12 is a block diagram of a partial structure of a terminal device according to an embodiment of the present invention when the terminal device is a mobile phone. Referring to fig. 12, the handset may include: radio Frequency (RF) circuitry 1110, memory 1120, input unit 1130, display unit 1140, sensors 1150, audio circuitry 1160, wireless fidelity (WiFi) module 1170, processor 1180, and power supply 1190. Those skilled in the art will appreciate that the handset configuration shown in fig. 12 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile phone in detail with reference to fig. 12:

RF circuit 1110 may be used for receiving and transmitting signals during a message transmission or call, and in particular, for receiving downlink messages from a base station and then processing the received downlink messages to processor 1180; in addition, the uplink data is transmitted to the base station. Typically, the RF circuitry includes, but is 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, the RF circuitry 1110 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), 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 may be used to store software programs and modules, and the processor 1180 may execute various functional applications and data processing of the mobile phone by operating the 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 program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 1120 may include high speed random access memory, and may 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 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 1130 may include a touch panel 1131 and other input devices 1132. Touch panel 1131, also referred to as a touch screen, can collect touch operations of a user on or near the touch panel 1131 (for example, operations of the user on or near touch panel 1131 by using any suitable object or accessory such as a finger or a stylus pen), and drive corresponding connection devices according to a preset program. Alternatively, the touch panel 1131 may include two parts, namely, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1180, and can receive and execute commands sent by the processor 1180. In addition, the touch panel 1131 can be implemented by using various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 1130 may include other input devices 1132 in addition to the touch panel 1131. In particular, other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 1140 may be used to display information input by the user or information provided to the user and various menus of the cellular phone. The Display unit 1140 may include a Display panel 1141, and optionally, 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, touch panel 1131 can be overlaid on display panel 1141, and when touch operation is detected on or near touch panel 1131, the touch operation is transmitted to processor 1180 to determine the type of touch event, and then processor 1180 provides corresponding visual output on display panel 1141 according to the type of touch event. Although in fig. 12, the touch panel 1131 and the display panel 1141 are two independent components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 1131 and the display panel 1141 may be integrated to implement the input and output functions of the mobile phone.

The handset may also include at least one 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 ambient light, and the light sensor may turn off the display panel 1141 and/or the backlight when the mobile phone moves to the ear. As one type of motion sensor, the acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

Audio circuitry 1160, speaker 1161, and microphone 1162 may provide an audio interface between a user and a cell phone. The audio circuit 1160 may transmit the electrical signal converted from the received audio data to the speaker 1161, and convert the electrical signal into a sound signal for output by the speaker 1161; on the other hand, the microphone 1162 converts the collected sound signals into electrical signals, which are received by the audio circuit 1160 and converted into audio data, which are then processed by the audio data output processor 1180, and then transmitted to, for example, another cellular phone via the RF circuit 1110, or output to the memory 1120 for further processing.

WiFi belongs to short-distance wireless transmission technology, and the cell phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 1170, and provides wireless broadband internet access for the user. Although fig. 12 shows the WiFi module 1170, it is understood that it does not belong to the essential constitution of the handset, and can be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 1180 is a control center of the mobile phone, and is connected to various parts of the whole mobile phone through various interfaces and lines, and executes various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 1120 and calling data stored in the memory 1120, thereby performing overall monitoring of the mobile phone. Optionally, processor 1180 may include one or more processing units; preferably, the processor 1180 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated within processor 1180.

The phone also includes a power supply 1190 (e.g., a battery) for powering the various components, and preferably, the power supply may be logically connected to the processor 1180 via a power management system, so that the power management system may manage charging, discharging, and power consumption management functions.

The mobile phone may further include a camera 1200, which may be a front camera or a rear camera. Although not shown, the mobile phone may further include a bluetooth module, a GPS module, etc., which will not be described herein.

In this embodiment of the present invention, the processor 1180 included in the mobile phone may be used in the method embodiment of the terminal device side for executing the processing method for mobility of the terminal device, and the implementation principle and the technical effect are similar, and are not described herein again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for processing mobility of a terminal device is characterized by comprising the following steps:

the terminal equipment receives the capability information of the serving cell sent by the base station by adopting the first beam information; the capability information of the serving cell includes at least one of the following information: a mapping relation between a beam type supported by the serving cell and a delay level, and a mapping relation between a beam scanning mode supported by the serving cell and a delay level;

the terminal equipment receives a downlink signal sent by the base station by adopting first beam information;

the terminal equipment sends first indication information to the base station according to a downlink signal sent by adopting first beam information; the first indication information is used for indicating the base station to transmit downlink signals to the terminal equipment by adopting second beam information;

the terminal equipment receives the downlink signal sent by the base station by adopting the second beam information;

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

the terminal equipment determines the second beam information according to the time delay grade of the current service and the capability information of the service cell;

the terminal equipment sends 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, where the transmission angle of the beam corresponding to the beam type included in the second beam information is smaller than the transmission angle of the beam corresponding to the beam type included in the first beam information;

if the terminal device is a terminal device that is performing cell camping, after the terminal device receives the downlink signal sent by the base station by using the second beam information, the method further includes:

when the measurement result of the downlink signal sent by the terminal equipment by adopting the first beam information is greater than a first preset threshold value, the terminal equipment executes a random access process with the base station and sends second indication information to the base station, wherein the second indication information is used for indicating the base station to stop sending the downlink signal by adopting the second beam information; the second indication information includes: an identification of the first beam information or first beam information;

the terminal equipment continues to receive the downlink signal sent by the base station by adopting the first beam information;

and the terminal equipment sends the first indication information to the base station again when the measurement result of the downlink signal sent by the first beam information is smaller than a second preset threshold value.

2. The method of claim 1, wherein the first beam information and the second beam information further comprise a beam scanning mode;

the beam scanning mode is a single beam scanning mode or a multi-beam parallel scanning mode.

3. The method of claim 2, further comprising:

the terminal equipment receives the capability information of the adjacent cell sent by the base station by adopting the first beam information; the capability information of the neighboring cell includes at least one of the following information: the mapping relation between the beam type supported by the adjacent cell and the delay level, and the mapping relation between the beam scanning mode supported by the adjacent cell and the delay level.

4. The method of claim 3,

when the base station is a base station to which the adjacent cell belongs, the terminal device sends first indication information to the base station, including:

the terminal equipment determines the second beam information according to the time delay grade of the current service and the capability information of the adjacent cell;

the terminal equipment sends first indication information to the base station according to the second beam information; the first indication information includes: an identification of the second beam information or the second beam information.

5. The method according to claim 1 or 2, wherein the sending, by the terminal device, the first indication information to the base station according to the downlink signal sent by using the first beam information includes:

and the terminal equipment sends first indication information to the base station when the measurement result of the downlink signal sent by adopting the first beam information is less than or equal to a first preset threshold value.

6. The method of claim 5, wherein if 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, after the terminal device receives the downlink signal sent by the base station using the second beam information, the method further comprises:

the terminal equipment reports the measurement result of the downlink signal sent by adopting the second beam information to the base station;

when the measurement result meets the cell switching condition, the terminal equipment receives a switching command sent by the base station; and the switching command is used for indicating the terminal equipment to access the target cell.

7. The method of claim 5, wherein if the terminal device is a terminal device performing cell handover, the base station is a base station of a target cell; when the measurement result of the downlink signal sent by the terminal device using the first beam information is smaller than a first preset threshold, sending first indication information to the base station, where the sending includes:

and the terminal equipment sends first indication information to the base station where the target cell is located when the measurement result of the downlink signal is smaller than a first preset threshold value.

8. A method for processing mobility of a terminal device is characterized by comprising the following steps:

the base station sends the capability information of the serving cell to the terminal equipment by adopting the first beam information; the capability information of the serving cell includes at least one of the following information: a mapping relation between a beam type supported by the serving cell and a delay level, and a mapping relation between a beam scanning mode supported by the serving cell and a delay level;

the base station sends downlink signals to the terminal equipment by adopting first beam information;

the base station receives first indication information sent by the terminal equipment, wherein the first indication information is used for indicating the base station to send the downlink signal to the terminal equipment by adopting second beam information;

the base station sends the downlink signal to the terminal equipment by adopting the second beam information;

when the base station is a base station to which the serving cell belongs, the first indication information includes: the terminal equipment determines the second beam information or the identifier of the second beam information according to the delay level of the current service and the capability information of the serving cell;

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

the base station sends the downlink signal to the terminal equipment by adopting the second beam information determined by the terminal equipment according to the time delay level of the current service and the capability information of the serving cell, wherein the emission angle of a beam corresponding to the beam type contained in the second beam information is smaller than the emission angle of a beam corresponding to the beam type contained in the first beam information;

if the terminal device is a terminal device which is performing cell camping, after the base station sends the downlink signal to the terminal device by using the second beam information, the method further includes:

the base station and the terminal equipment execute a random access process and receive second indication information sent by the terminal equipment, wherein the second indication information is used for indicating the base station to stop sending the downlink signal by adopting second beam information; the second indication information includes: the first beam information or an identification of the first beam information.

9. The method of claim 8, wherein the first beam information and the second beam information further comprise a beam scanning pattern;

10. The method of claim 9, further comprising:

the base station sends the capability information of the adjacent cell to the terminal equipment by adopting the first beam information; the capability information of the neighboring cell includes at least one of the following information: the mapping relation between the beam type supported by the adjacent cell and the delay level, and the mapping relation between the beam scanning mode supported by the adjacent cell and the delay level.

11. The method of claim 10,

when the base station is a base station to which the neighboring cell belongs, the first indication information includes: the terminal equipment determines the second beam information or the identifier of the second beam information according to the delay level of the current service and the capability information of the adjacent cell;

and the base station sends the downlink signal to the terminal equipment by adopting the second beam information determined by the terminal equipment according to the time delay grade of the current service and the capability information of the adjacent cell.

12. The method according to claim 8 or 9, wherein the base station transmits the downlink signal to the terminal device using the second beam information, including:

and the base station sends the downlink signal to the terminal equipment by adopting the preset second beam information.

13. The method according to any one of claims 8 to 11, 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, and after the base station transmits the downlink signal to the terminal device by using the second beam information, the method further includes:

the base station receives the measurement result of the downlink signal reported by the terminal equipment;

the base station sends a switching command to the terminal equipment when the measurement result meets the cell switching condition; and the switching command is used for indicating the terminal equipment to initiate a random access process to the base station where the target cell is located.

14. A terminal device, comprising:

the receiving module is used for receiving the capability information of the serving cell sent by the base station by adopting the first beam information; the capability information of the serving cell includes at least one of the following information: the mapping relationship between the beam type supported by the serving cell and the delay level, and the mapping relationship between the beam scanning mode supported by the serving cell and the delay level are also used for receiving a downlink signal sent by the base station by using first beam information;

a sending module, configured to send first indication information to the base station according to a downlink signal sent by using first beam information; the first indication information is used for indicating the base station to transmit the downlink signal to the terminal equipment by adopting second beam information;

the receiving module is further configured to receive the downlink signal sent by the base station by using the second beam information;

the terminal equipment also comprises 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 a current service and capability information of the serving cell; the sending module is specifically configured to send 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, wherein the transmission angle of the beam corresponding to the beam type included in the second beam information is smaller than the transmission angle of the beam corresponding to the beam type included in the first beam information;

if the terminal equipment is the terminal equipment which is resident in the cell; 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, execute a random access procedure with the base station when a measurement result of the downlink signal is greater than a first preset threshold; the sending module is configured to send second indication information to the base station, where the second indication information is used to indicate the base station to stop sending the downlink signal by using second beam information; the second indication information includes: an identification of the first beam information or first beam information;

the receiving module is further configured to continue receiving the downlink signal 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 smaller than a second preset threshold.

15. The terminal device according to claim 14, wherein the first beam information and the second beam information further include a beam scanning mode;

16. The terminal device of claim 15,

the receiving module is further configured to receive capability information of an adjacent cell sent by the base station by using the first beam information; the capability information of the neighboring cell includes at least one of the following information: the mapping relation between the beam type supported by the adjacent cell and the delay level, and the mapping relation between the beam scanning mode supported by the adjacent cell and the delay level.

17. Terminal device according to claim 16, characterized in that

When the base station is a base station to which the adjacent cell belongs, the processing module is configured to determine the second beam information according to a delay level of a current service and capability information of the adjacent cell; the sending module is specifically configured to send first indication information to the base station according to the second beam information; the first indication information includes: an identification of the second beam information or second beam information.

18. The terminal device according to claim 14 or 15, wherein the sending module is specifically configured to send first indication information to the base station when the measurement result of the downlink signal is less than or equal to a first preset threshold.

19. The terminal device according to claim 18, 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 sending module is further configured to report a measurement result of the downlink signal to the base station after the receiving module receives the downlink signal sent by the base station by using the second beam information;

the receiving module is further configured to receive a handover command sent by the base station when the measurement result meets a cell handover condition; and the switching command is used for indicating the terminal equipment to access the target cell.

20. The terminal device according to claim 18, wherein the terminal device is a terminal device that is performing cell handover, and the base station is a base station where a 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 smaller than a first preset threshold.

21. A base station, comprising:

a sending module, configured to send capability information of a serving cell to a terminal device by using first beam information; the capability information of the serving cell includes at least one of the following information: the mapping relationship between the beam type supported by the serving cell and the delay level, and the mapping relationship between the beam scanning mode supported by the serving cell and the delay level are also used for sending a downlink signal to the terminal equipment by adopting first beam information;

a receiving module, configured to receive first indication information 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 sending module is specifically configured to send the downlink signal to the terminal device by using the 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, where an emission angle of a beam corresponding to a beam type included in the second beam information is smaller than an emission angle of a beam corresponding to a beam type included in the first beam information;

the processing module is configured to execute 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; the receiving module receives second indication information sent by the terminal device, where the second indication information is used to indicate the base station to stop sending the downlink signal by using second beam information; the second indication information includes: the first beam information or an identification of the first beam information.

22. The base station of claim 21, wherein the first beam information and the second beam information further comprise a beam scanning mode;

23. The base station of claim 22, wherein the sending module is further configured to send capability information of a neighboring cell to the terminal device using the first beam information; the capability information of the neighboring cell includes at least one of the following information: the mapping relation between the beam type supported by the adjacent cell and the delay level, and the mapping relation between the beam scanning mode supported by the adjacent cell and the delay level.

24. The base station of claim 23,

the sending module is specifically configured to send the downlink signal to the terminal device by using 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.

25. The base station according to claim 21 or 22, wherein the sending module is configured to send the downlink signal to the terminal device by using the preset second beam information.

26. The base station according to any of claims 21-24, wherein the terminal equipment is a terminal equipment performing cell handover, and the base station is a base station where a serving cell is located;

the receiving module is further configured to receive a measurement result of the downlink signal reported by the terminal device after the sending module sends the downlink signal to the terminal device by using the second beam information;

the sending module is used for sending a switching command to the terminal equipment when the measurement result meets the cell switching condition; and the switching command is used for indicating the terminal equipment to initiate a random access process to the base station where the target cell is located.