WO2018120450A1

WO2018120450A1 - Beam scanning method, terminal device and network device

Info

Publication number: WO2018120450A1
Application number: PCT/CN2017/077639
Authority: WO
Inventors: 董辰; 孙晓东; 斯特林-加拉赫理查德; 王宇; 王键
Original assignee: 华为技术有限公司
Priority date: 2016-12-29
Filing date: 2017-03-22
Publication date: 2018-07-05
Also published as: CN109478920A; CN109478920B

Abstract

Provided in the embodiments of the present invention is a beam scanning method, comprising: transmitting first indication information to a network device when a terminal device experiences rotating behavior, the first indication information being used for indicating the grade identification of the rotation behavior; receiving a response message for the first indication message sent by the network device, the response message comprising indication information of a time-frequency resource; and transmitting a signal to the network device on the time-frequency resource by means of at least one candidate beam according to the indication information of the time-frequency resource, the at least one candidate beam being a partial beam within configuration beams of the terminal device. According to the beam scanning method of the embodiments of the present invention, when a terminal device transmits rotation behavior, using a rotation parameter may allow a network device to determine a first beam having the strongest signal gain by means of only scanning a partial beam within configuration beams of the terminal device, thereby effectively reducing the occupancy rate of time-frequency resources.

Description

Method for scanning beam, terminal device and network device

Technical field

Embodiments of the present invention relate to the field of communications, and more particularly, to a method of scanning a beam, a terminal device, and a network device.

Background technique

Beamforming is a very important technology in the 3rd Generation Partnership Project (3GPP) Release 14 (R14) and 3GPP New Air (3GPP NR). However, communication systems that use beamforming are very sensitive to the movement or rotation of the terminal device. Specifically, the movement and rotation of the terminal device may cause the beam pairing effect between the network device and the terminal device to be weakened or the pairing fails, that is, the original beam pair cannot meet the communication link communication requirement.

In the prior art, the terminal device usually integrates motion sensors such as an acceleration sensor, a gyroscope, and a geomagnetic sensor to detect the carrier's motion behavior. The sensor data is input into the Attitude Heading Reference System (AHRS) and the Zero-Velocity Detector (Z-VD). The detection information of AHRS and ZVD can be called terminal equipment. Attitude data, AHRS can estimate the rotation angle of the terminal device, and ZVD can detect whether the device is moving. Thereby, the beam used by the terminal device can be adjusted using these posture data. Alternatively, the posture data is used to instruct the user to adjust the terminal device.

However, the network device can only perform a full scan of the configuration beam of the terminal device and re-establish communication when the communication is weakened or interrupted, which occupies a lot of time-frequency resources. Therefore, in the field of communication, it is urgent to propose a scanning beam method that can effectively reduce the occupation rate of time-frequency resources while ensuring communication quality when the terminal device rotates.

Summary of the invention

A method, a terminal device, and a network device for transmitting signals are provided. It can effectively reduce the occupancy rate of time-frequency resources when the terminal device rotates.

In a first aspect, a method of transmitting a signal is provided, the method comprising:

When the terminal device rotates, the first indication information is sent to the network device, where the first indication information is used to indicate the level identifier of the rotation behavior, so that the network device identifies the terminal device according to the level identifier. Allocating time-frequency resources;

Receiving, by the network device, a response message of the first indication message, where the response message includes indication information of the time-frequency resource;

And sending, according to the indication information of the time-frequency resource, a signal to the network device by using at least one candidate beam on the time-frequency resource, so that the network device determines a signal gain most in the at least one candidate beam. Strong first beam;

The at least one candidate beam is a partial beam in a configuration beam of the terminal device.

In the method for scanning a beam according to the embodiment of the present invention, by rotating the parameter, the network device only needs to scan part of the beam in the configuration beam of the terminal device, thereby determining the first beam with the strongest signal gain, and further, at the terminal. When the device sends the rotation behavior, the network device re-establishes the communication process, and the time-frequency resources are less effective. Utilization rate.

In some possible implementations, before the sending the first indication information to the network device, the method further includes:

Obtaining a rotation parameter of the rotation behavior, the rotation parameter including at least one of an angular velocity, an angular acceleration, and a rotation angle; and generating the first indication information according to the rotation parameter.

Further, the generating the first indication information according to the rotation parameter includes:

And determining, according to the rotation parameter and the first mapping relationship information, the level mapping identifier, where the first mapping relationship information includes at least one level identifier, and a rotation parameter corresponding to the at least one level identifier; generating a location according to the level identifier The first indication information is described.

In some possible implementations, before the sending, by the at least one candidate beam, the network device, the method further includes:

Determining, in the configuration beam of the terminal device, a beam identifier corresponding to the at least one candidate beam according to the time-frequency resource and the rotation parameter, where the signal is sent to the network device by using at least one candidate beam ,include:

Transmitting the signal on the at least one candidate beam according to a beam identifier corresponding to the at least one candidate beam.

Further, the determining, according to the time-frequency resource and the rotation parameter, a beam identifier corresponding to the at least one candidate beam, including:

Determining a maximum number of beams that can be transmitted on the time-frequency resource; determining a beam identifier corresponding to the at least one candidate beam according to the rotation parameter and the maximum number.

Further, the maximum number is M, and determining, according to the rotation parameter and the maximum quantity, a beam identifier corresponding to the at least one candidate beam, including:

Determining a rotation angle of the rotation behavior according to the rotation parameter; compensating the second beam of the terminal device according to the first direction to obtain a third beam, where the second beam is that the terminal device does not occur a beam used in the rotation behavior, the first direction is a reverse direction of the rotation behavior; and a beam identifier corresponding to the M beams adjacent to the third beam is determined as a beam corresponding to the at least one candidate beam Logo.

In some possible implementations, the method further includes:

Receiving, by the network device, second indication information, where the second indication information is used to indicate a beam identifier corresponding to the first beam.

In some possible implementations, the terminal device is configured with a gyroscope; wherein the acquiring the rotation parameter of the terminal device includes:

The rotation parameter is obtained by the gyroscope.

In some possible implementations, the sending, by the network device, the first indication information includes: sending, to the network device, channel state information CSI, where the CSI includes the first indication information.

Sending, to the network device, third indication information, where the third indication information is used to indicate that the terminal device has a function of recognizing a rotation behavior.

In a second aspect, a method of scanning a beam is provided, the method comprising:

Receiving first indication information sent by the terminal device, where the first indication information is used to indicate the rotation behavior, etc. Level identification

Allocating time-frequency resources to the terminal device according to the level identifier;

Sending, by the terminal device, a response message of the first indication information, where the response message includes indication information of the time-frequency resource;

Receiving, by the at least one candidate beam, the terminal device to send a signal, wherein the at least one candidate beam is a partial beam in a configuration beam of the terminal device;

A beam identifier corresponding to the first beam having the strongest signal gain is determined in the at least one candidate beam by comparing strengths of the signals on the at least one candidate beam.

Specifically, since the network device only needs to scan part of the beam in the configuration beam of the terminal device, the first beam with the strongest signal gain is determined, and then, when the terminal device sends the rotation behavior, the network device is re-established. In the communication process, the occupancy rate of time-frequency resources is effectively reduced.

Further, the allocating time-frequency resources to the terminal device according to the level identifier includes:

Determining, according to the level identifier and the second mapping relationship, the number of candidate beams, where the second mapping relationship includes at least one level identifier, and the number of candidate beams corresponding to the at least one level identifier; according to the number of candidate beams, Allocating the time-frequency resource to the terminal device.

In some possible implementations, the method further includes:

Sending the second indication information to the terminal device, where the second indication information is used to indicate a beam identifier corresponding to the first beam.

In some possible implementations, the first indication information that is sent by the receiving terminal device includes: receiving channel state information CSI sent by the terminal device, where the CSI includes the first indication information.

In some possible implementations, before the receiving the first indication information sent by the terminal device, the method further includes:

And receiving, by the terminal device, third indication information, where the third indication information is used to indicate that the terminal device has a function of recognizing a rotation behavior.

In a third aspect, a terminal device is provided, where the terminal device includes:

a sending unit, configured to send first indication information to the network device when the terminal device generates a rotation behavior, where the first indication information is used to indicate a level identifier of the rotation behavior, so that the network device identifies the level according to the level Allocating time-frequency resources to the terminal device;

a receiving unit, configured to receive a response message of the first indication message sent by the network device, where the response message includes indication information of the time-frequency resource;

The sending unit is further configured to: send, according to the indication information of the time-frequency resource, a signal to the network device by using at least one candidate beam on the time-frequency resource, so that the network device is in the at least one Determining a first beam having the strongest signal gain among the candidate beams;

A fourth aspect provides a terminal device, where the terminal device includes:

a transceiver, configured to send first indication information to the network device when the terminal device rotates, the first indication information is used to indicate a level identifier of the rotation behavior, so that the network device identifies the level according to the level Allocating a time-frequency resource to the terminal device; receiving a response message of the first indication message sent by the network device, where the response message includes indication information of the time-frequency resource; and indicating information according to the time-frequency resource Transmitting, by the at least one candidate beam, a signal to the network device on the time-frequency resource, so that the network device is in the Determining, in the at least one candidate beam, a first beam having the strongest signal gain;

In a fifth aspect, a network device is provided, where the network device includes:

a transceiver unit, configured to receive first indication information sent by the terminal device, where the first indication information is used to indicate a level identifier of the rotation behavior;

a processing unit, configured to allocate a time-frequency resource to the terminal device according to the level identifier;

The transceiver unit is further configured to: send a response message of the first indication information to the terminal device, where the response message includes indication information of the time-frequency resource;

The processing unit is further configured to: receive, by the at least one candidate beam, the terminal device to send a signal, where the at least one candidate beam is a partial beam in a configured beam of the terminal device; by comparing the at least one candidate beam The strength of the upper signal determines a beam identifier corresponding to the first beam having the strongest signal gain among the at least one candidate beam.

In a sixth aspect, a network device is provided, where the network device includes:

a transceiver, configured to receive first indication information sent by the terminal device, where the first indication information is used to indicate a level identifier of the rotation behavior;

a processor, configured to allocate a time-frequency resource to the terminal device according to the level identifier;

The transceiver is further configured to: send a response message of the first indication information to the terminal device, where the response message includes indication information of the time-frequency resource;

The processor is further configured to: receive, by the at least one candidate beam, the terminal device to send a signal, where the at least one candidate beam is a partial beam in a configured beam of the terminal device; by comparing the at least one candidate beam The strength of the upper signal determines a beam identifier corresponding to the first beam having the strongest signal gain among the at least one candidate beam.

DRAWINGS

FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present invention.

2 is a schematic flow chart of a method of scanning a beam according to an embodiment of the present invention.

3 is a schematic diagram of rotational behavior in accordance with an embodiment of the present invention.

4 is another schematic flow chart of a method of scanning a beam according to an embodiment of the present invention.

FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present invention.

FIG. 6 is another schematic block diagram of a terminal device according to an embodiment of the present invention.

FIG. 7 is a schematic block diagram of a network device according to an embodiment of the present invention.

FIG. 8 is another schematic block diagram of a network device according to an embodiment of the present invention.

detailed description

1 is a schematic diagram of an application scenario of an embodiment of the present invention. It should be understood that FIG. 1 is merely illustrative, and examples of the present invention are not limited thereto.

As shown in FIG. 1, communication system 100 can include terminal device 110 and network device 120. Network device 120 can communicate with terminal device 110 over an air interface. The network device 120 may refer to an entity on the network side for transmitting or receiving signals, for example, may be a base station or the like. The UE may be any terminal, for example, the UE may be a machine type communication (MTC) user equipment or the like.

The terminal device 110 and the network device 120 can both rotate or translate.

That is to say, the technical solutions of the embodiments of the present invention can be applied to various communication systems. For example, Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, general packet radio service (General Packet Radio Service, GPRS), 5G communication system, Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), general purpose Mobile communication system (Universal Mobile Telecommunication System, UMTS) and the like.

The present invention describes various embodiments in connection with network device 120 and terminal device 110.

The network device 120 may be a base station or a network side device having a base station function. For example, the network device may be a base station (Base Transceiver Station, BTS) in the GSM system or CDMA, or a base station (NodeB, NB) in the WCDMA system, or an evolved base station (Evolved Node B in the LTE system). The eNB or eNodeB), or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a network device in a future 5G network.

The terminal device 110 may also be referred to as an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, User agent or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless A communication-enabled handheld device, computing device, or other linear processing device connected to a wireless modem, an in-vehicle device, a wearable device, and the like.

It should be understood that the embodiment of the present invention is described by taking an example in which the terminal device transmits the rotation behavior, but is not limited thereto. For example, based on the same implementation manner, the response message of the first indication information may be directly sent to the terminal device when the network device rotates.

FIG. 2 is a schematic flowchart of a method 200 for scanning a beam according to an embodiment of the present invention. As shown in FIG. 2, the method 200 includes:

210. When the terminal device rotates, send the first indication information to the network device.

Specifically, when the terminal device rotates, the first indication information is sent to the network device, where the first indication information is used to indicate the level identifier of the rotation behavior, so that the network device allocates the terminal device according to the level identifier. Time-frequency resources.

That is, the network device may allocate the time-frequency resource to the terminal device by receiving the level identifier of the rotation behavior indicated by the first indication information sent by the terminal device.

Optionally, the terminal device may send channel state information (CSI) to the network device, where the CSI may include the first indication information.

Optionally, before 210, the terminal device may send third indication information to the network device, where the third indication information is used to indicate that the terminal device has a function of identifying a rotation behavior. For example, when the terminal device starts up for the first time, the third indication information is sent to the network device. For another example, the terminal device periodic network device sends the third indication information and the like.

It should be understood that the level identifier in the embodiment of the present invention may refer to the level of the rotation behavior, or may be merely an identifier for classifying the rotation behavior. The embodiment of the invention is not specifically limited.

It should also be understood that the rotational behavior in the embodiment of the present invention refers to the translation and/or rotation of the terminal device in a stereoscopic space. Turn, or, translate and/or rotate in a flat space. Among them, translation and / or rotation is just an association relationship describing the associated objects, indicating that there can be three relationships. In particular, translation and/or rotation may mean that only translation, while there are translations and rotations, only rotates the three cases.

For example, as an embodiment, the terminal device (rigid body) can be divided into six degrees of freedom in an unconstrained three-dimensional space. That is, the terminal device can be translated in three orthogonal directions, and can also be rotated in three orthogonal directions, thereby having six degrees of freedom.

Specifically, as shown in FIG. 3, taking the three-dimensional coordinate system as an example, the x-axis is perpendicular to the screen of the mobile phone, the y-axis is parallel to the short side of the screen of the mobile phone, and the z-axis is parallel to the long side of the screen of the mobile phone. The six degrees of freedom are: Translate along the x-axis, translate along the y-axis, translate along the z-axis, rotate around the x-axis, rotate about the y-axis, and rotate about the z-axis.

For another example, as another embodiment, the terminal device (rigid body) is constrained in one plane, then there are only three degrees of freedom on the face, that is, the terminal device can translate in two orthogonal directions in the plane, and can also The vertical direction of the plane is the axis rotation, thereby providing three degrees of freedom.

Specifically, taking a two-dimensional coordinate system as an example, if the surface is the X-Y plane in FIG. 3, the three degrees of freedom are: movement along the X axis, movement along the Y axis, and rotation about the Z axis.

It should be noted that the above six degrees of freedom and three degrees of freedom are exemplary descriptions of the rotational behavior of the terminal device in the embodiment of the present invention, and examples of the present invention are not limited thereto.

Optionally, in the embodiment of the present invention, the terminal device may generate the first indication information by acquiring a rotation parameter of the rotation behavior. Wherein, the rotation parameter refers to a parameter value capable of quantifying the rotation behavior of the terminal device. For example, the rotation parameter may include at least one of an angular velocity, an angular acceleration, and a rotational angle.

Specifically, the terminal device acquires the rotation parameter of the rotation behavior through the sensor. For example, an acceleration sensor, a gyroscope, a geomagnetic sensor, or the like is used to detect a carrier's athletic behavior. Among them, the gyroscope is also called the angular velocity sensor, which is different from the accelerometer (G-sensor). His measured physical quantity is the angular velocity of rotation when tilting and tilting. On the terminal device, only the accelerometer can't measure or reconstruct the complete 3D motion. If the motion is not detected, G-sensor can only detect the linear motion in the axial direction. However, the gyroscope can measure the rotation and deflection well, so that the actual motion of the user, that is, the rotation parameter corresponding to the rotation behavior of the terminal device can be accurately analyzed and judged. This can be implemented by those skilled in the art, and details are not described herein.

The following describes an implementation manner in which the terminal device generates the first indication information according to the rotation parameters after learning the rotation parameters.

Optionally, in the embodiment of the present invention, the terminal device may first determine the level identifier of the rotation behavior according to the rotation parameter and the first mapping relationship information, where the first mapping relationship information may include at least one level identifier. And a rotation parameter corresponding to the at least one level identifier; and then generating the first indication information according to the level identifier. For example, the first indication information includes the level identifier.

For example, the above level identifier may be 1 bit of information. Specifically, when the rotation parameter of the terminal device exceeds the first threshold by less than the second threshold, the level is identified as 1, and when the rotation parameter exceeds the second threshold and is less than the third threshold, the level is identified as 2, and so on.

It should be understood that the above level identification is 1 bit information is merely an exemplary description. The embodiment of the invention is not limited thereto, for example, the level identifier may also directly include the rotation parameter.

220. Receive a response message of the first indication message sent by the network device, where the response message includes indication information of the time-frequency resource.

Specifically, the terminal device receives a response message of the first indication message sent by the network device, where the response is cancelled. The information includes indication information of the time-frequency resource.

In other words, after receiving the first indication information sent by the terminal device, the network device allocates a time-frequency resource to the terminal device according to the level identifier of the rotation behavior indicated by the first indication message; and generates the first according to the time-frequency resource. And a response message indicating the information, where the response message includes indication information of the time-frequency resource. Sending a response message of the first indication information to the terminal device.

Optionally, the network device determines the number of candidate beams according to the level identifier and the second mapping relationship, where the second mapping relationship includes at least one level identifier, and the number of candidate beams corresponding to each level identifier in the at least one level identifier; The number of candidate beams is allocated to the terminal device by the time-frequency resource.

Specifically, the network device in the embodiment of the present invention may determine the number of candidate beams to be scanned according to the level identifier in the first indication information, and then allocate time-frequency resources to the terminal device according to the number of candidate beams to be scanned.

230. Send, according to the indication information of the time-frequency resource, a signal to the network device by using at least one candidate beam on the time-frequency resource.

Specifically, the terminal device sends a signal to the network device by using at least one candidate beam according to the indication information of the time-frequency resource, so that the network device determines a signal gain in the at least one candidate beam. The strongest first beam. The at least one candidate beam is a partial beam in a configuration beam of the terminal device. In other words, the network device receives the terminal device transmission signal through the at least one candidate beam, wherein the at least one candidate beam is a partial beam in the configuration beam of the terminal device; and, by comparing the signals on the at least one candidate beam Intensity, a first beam having the strongest signal gain can be determined in the at least one candidate beam.

The basic idea of the beamforming technology is to divide the space into multiple regions. The terminal device sends a beam to one or several regions on a specific time slice, so that after several time slices, the beam can be sent in all spaces, that is, the network device. All the beams that can be sent by the terminal device are collectively referred to as the configuration beam of the terminal device in the embodiment of the present invention. The advantage of beamforming is that the antenna energy is concentrated in one direction, and a stronger signal can be obtained in a certain direction to achieve a better communication distance or rate. But only concentrated in a few directions.

There may be multiple situations due to signal degradation. For example, the signal occlusion, that is, the terminal device and the network and the network device do not move, but an obstruction occurs between the network device and the terminal device; or the terminal device transmits the movement due to the user's movement, causing the middle to be occluded. For another example, the terminal device rotates, for example, the user turns 90 degrees in place, and other conditions do not change.

However, for network devices, the reason for the weakening or interruption of the signal is not known. Only when the communication is weakened or interrupted, the beam with the strongest signal gain can be re-determined by comprehensively scanning the configuration beam of the terminal device. Establish communication, which takes up a lot of time-frequency resources.

In the method for scanning a beam according to the embodiment of the present invention, by rotating the parameter, the network device only needs to scan part of the beam in the configuration beam of the terminal device, thereby determining the first beam with the strongest signal gain, and further, at the terminal. When the device sends the rotation behavior, the network device re-establishes the communication process, effectively reducing the occupancy rate of the time-frequency resource.

It should be noted that each configuration beam of the terminal device corresponds to a beam identifier. For example, the configuration beam of the terminal device is eight, that is, one beam is configured every 45 degrees, and the eight beams respectively correspond to one identifier. For example, the beam identifiers corresponding to the eight beams are respectively 0#, 1#, 2#, 3#, 4#, 5#, 6#, 7#, and the network device scans when the terminal device transmits signals through the 1# beam. The 1# beam is used to receive signals. It should also be understood that in the embodiment of the present invention The candidate beam refers to a beam with a strong signal gain determined by the terminal device according to the rotation parameter.

In the embodiment of the present invention, optionally, in the configuration beam of the terminal device, the terminal device may determine, according to the time-frequency resource and the rotation parameter, a beam identifier corresponding to the at least one candidate beam; corresponding to the at least one candidate beam. The beam identification transmits the signal on the at least one candidate beam. In other words, the network device may determine the number of candidate beams to be scanned according to the level identifier in the first indication information, and then allocate time-frequency resources to the terminal device according to the number of candidate beams to be scanned.

Specifically, after receiving the response message of the first indication information sent by the network device, the terminal device calculates a maximum number of transmittable beams by using the time-frequency resource indicated in the response message; according to the rotation parameter and the maximum quantity And determining a beam identifier corresponding to the at least one candidate beam; and then transmitting the signal on the at least one candidate beam according to the beam identifier corresponding to the at least one candidate beam.

Optionally, the maximum number is M, and the terminal device can determine the rotation angle of the rotation behavior according to the rotation parameter; and the second beam of the terminal device compensates the rotation angle according to the first direction to obtain a third beam, and the second The beam is a beam used when the terminal device does not have the rotation behavior, and the first direction is a reverse direction of the rotation behavior; and a beam identifier corresponding to the M beams adjacent to the third beam is determined as the at least one candidate beam. Corresponding beam identification.

For example, in a system of planar motion, the rotation can be clockwise or counterclockwise.

Assuming that the maximum number is M, the beam identifier used by the terminal device before the rotation behavior is 2# beam, and the rotation behavior is 30° clockwise, and the terminal device can determine the possible beam identification of the candidate beam. The beam is rotated by 30° counterclockwise to obtain a third beam corresponding to the region after the 2# beam compensation, and the beam identifier corresponding to the M beams adjacent to the third beam is determined as the beam identifier corresponding to the at least one candidate beam.

The above description is only exemplified by the system and the angle compensation of the plane motion, and the embodiment of the present invention can also perform the angle in the three-dimensional space. It can also be compensated by angular velocity and angular acceleration, and so on. The embodiment of the invention is not specifically limited.

It should be understood that, when determining the beam identifier corresponding to the at least one candidate beam, the terminal device may first determine the maximum number of candidate beams that can be transmitted according to the time-frequency resource, and directly determine the candidate beam identifier. The candidate beam of the terminal device may be first sorted according to the rotation parameter, and then the beam identifier corresponding to the candidate beam is directly determined according to the time-frequency resource, which is not specifically limited in the embodiment of the present invention.

In the embodiment of the present invention, after the network device determines the beam identifier corresponding to the first beam, the network device may send the second indication information to the terminal device, where the second indication information is used to indicate the beam identifier corresponding to the first beam. .

It should be noted that, in the embodiment of the present invention, the first indication information is used to indicate the level identifier of the rotation behavior, the second indication information is used to indicate the beam identifier of the first beam, and the third indication information is used to indicate whether the terminal device has the The function of detecting the rotation behavior.

That is, the "first", "second", and "third" are merely for distinguishing different information, and the number, type, and the like of the information are not limited, that is, the scope of the embodiments of the present invention is not limited.

FIG. 4 is a schematic flowchart of a method 300 for scanning a beam according to an embodiment of the present invention. As shown in FIG. 4, the method 300 includes:

310. When the terminal device rotates, generating first indication information, where the first indication information is used to indicate a level identifier of the rotation behavior.

Specifically, when the terminal device rotates, the rotation behavior is detected by the gyroscope and the rotation parameter is obtained, the level identifier of the rotation behavior is determined according to the rotation parameter, and the first indication information is generated, and the first indication is generated. The information is used to indicate the level identification of the rotation behavior.

320: Send the first indication information.

Specifically, the terminal device sends the first indication information to the network device, so that the network device allocates time-frequency resources to the terminal device according to the level identifier.

230. Generate a response message of the first indication information according to the level identifier, where the response message includes indication information of a time-frequency resource.

Specifically, after receiving the first indication information sent by the terminal device, the network device allocates a time-frequency resource to the terminal device according to the level identifier of the rotation behavior indicated by the first indication message; and generates the first according to the time-frequency resource. And a response message indicating the information, where the response message includes indication information of the time-frequency resource.

340. Send the response message.

Specifically, after generating the response message of the first indication information, the network device sends the response message to the terminal device.

350. Determine, according to the time-frequency resource, a beam identifier corresponding to the at least one candidate beam.

Specifically, after receiving the response message of the first indication information sent by the network device, the terminal device calculates a maximum number of transmittable beams by using the time-frequency resource indicated in the response message; according to the rotation parameter and the maximum quantity And determining a beam identifier corresponding to the at least one candidate beam. The at least one candidate beam is a partial beam in a configuration beam of the terminal device.

360. Send a signal to the network device through at least one candidate beam.

Specifically, after determining the beam identifier corresponding to the at least one candidate beam, the terminal device sends the signal on the at least one candidate beam according to the beam identifier corresponding to the at least one candidate beam.

370. Determine, in the at least one candidate beam, a first beam with the strongest signal gain.

Specifically, the network device receives the terminal device transmission signal through the at least one candidate beam, and compares the strength of the signal on the at least one candidate beam, and further determines the first beam with the strongest signal gain among the at least one candidate beam.

Therefore, the network device only needs to scan a part of the beam in the configuration beam of the terminal device, so that the first beam with the strongest signal gain is determined, and then, when the terminal device sends the rotation behavior, the network device re-establishes the communication process. Medium, the use rate of time-frequency resources is less effective.

The method for scanning a beam in the embodiment of the present invention is described above with reference to FIG. 2 to FIG. 4, and the terminal device and the network device according to the embodiment of the present invention are described below with reference to the accompanying drawings.

FIG. 5 is a schematic block diagram of a terminal device 400 according to an embodiment of the present invention.

As shown in FIG. 5, the terminal device 400 includes:

The sending unit 410 is configured to send the first indication information to the network device when the terminal device generates the rotation behavior, where the first indication information is used to indicate the level identifier of the rotation behavior, so that the network device identifies the terminal according to the level The device allocates time-frequency resources;

The receiving unit 420 is configured to receive a response message of the first indication message sent by the network device, where the response message includes indication information of the time-frequency resource;

The sending unit 410 is further configured to: send, according to the indication information of the time-frequency resource, a signal to the network device by using at least one candidate beam on the time-frequency resource, so that the network device determines, in the at least one candidate beam, The first beam with the strongest signal gain;

Optionally, the terminal device further includes: a processing unit 430, where the processing unit 430 is configured to:

Before the transmitting unit 410 is configured to send the first indication information to the network device, acquiring a rotation parameter of the rotation behavior, the rotation parameter including at least one of an angular velocity, an angular acceleration, and a rotation angle; generating the rotation parameter according to the rotation parameter First indication information.

Optionally, the processing unit 430 is specifically configured to:

Determining the level identifier according to the rotation parameter and the first mapping relationship information, where the first mapping relationship information includes at least one level identifier, and a rotation parameter corresponding to the at least one level identifier; and generating the first indication information according to the level identifier.

Optionally, the processing unit 430 is further configured to:

Before the transmitting unit 410 is configured to send the signal to the network device by using the at least one candidate beam, determine, in the configured beam of the terminal device, a beam corresponding to the at least one candidate beam according to the time-frequency resource and the rotation parameter. An identifier; wherein the sending unit 410 is specifically configured to:

And transmitting the signal on the at least one candidate beam according to the beam identifier corresponding to the at least one candidate beam.

The processing unit 430 is specifically configured to:

Determining a maximum number of beams that can be transmitted on the time-frequency resource; determining, according to the rotation parameter and the maximum number, a beam identifier corresponding to the at least one candidate beam.

Optionally, the maximum number is M, and the processing unit 430 is specifically configured to:

Determining a rotation angle of the rotation behavior according to the rotation parameter; and compensating the rotation angle of the second beam of the terminal device according to the first direction to obtain a third beam, where the second beam is used when the terminal device does not have the rotation behavior The beam direction, the first direction is a reverse direction of the rotation behavior, and the beam identifier corresponding to the M beams adjacent to the third beam is determined as a beam identifier corresponding to the at least one candidate beam.

Optionally, the receiving unit 420 is further configured to:

And receiving, by the network device, second indication information, where the second indication information is used to indicate a beam identifier corresponding to the first beam.

Optionally, the terminal device is configured with a gyroscope; wherein the processing unit 430 is specifically configured to: acquire the rotation parameter by using the gyroscope.

Optionally, the sending unit 410 is specifically configured to: send channel state information CSI to the network device, where the CSI includes the first indication information.

Optionally, the sending unit 410 is further configured to:

Before the sending unit 410 is configured to send the first indication information to the network device, send, to the network device, third indication information, where the third indication information is used to indicate that the terminal device has a function of recognizing a rotation behavior.

It should be noted that, in the embodiment of the present invention, the sending unit 410 and the receiving unit 420 may each be implemented by a transceiver, and the processing unit 430 may be implemented by a processor. As shown in FIG. 6, the terminal device 500 may include a processor 510, a transceiver 520, and a memory 530. The memory 530 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 510. The various components in the terminal device 500 are connected by a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to the data bus.

The terminal device 500 shown in FIG. 6 can implement the various processes implemented by the terminal device in the foregoing method embodiments of FIG. 2 and FIG. 4, and details are not repeatedly described herein.

FIG. 7 is a schematic block diagram of a network device 600 according to an embodiment of the present invention.

As shown in FIG. 7, the network device 600 includes:

The transceiver unit 610 is configured to receive first indication information that is sent by the terminal device, where the first indication information is used to indicate a level identifier of the rotation behavior;

The processing unit 620 is configured to allocate a time-frequency resource to the terminal device according to the level identifier.

The transceiver unit 610 is further configured to: send a response message of the first indication information to the terminal device, where the response message includes indication information of the time-frequency resource;

The processing unit 620 is further configured to: receive, by the at least one candidate beam, the terminal device to send a signal, where the at least one candidate beam is a partial beam in a configuration beam of the terminal device; by comparing strengths of signals on the at least one candidate beam And determining, in the at least one candidate beam, a beam identifier corresponding to the first beam with the strongest signal gain.

Optionally, the processing unit 620 is specifically configured to:

Determining, according to the level identifier and the second mapping relationship, the number of the candidate beams, where the second mapping relationship includes at least one level identifier, and the number of candidate beams corresponding to the at least one level identifier; according to the number of the candidate beams, the terminal device Allocate this time-frequency resource.

Optionally, the transceiver unit 610 is further configured to: send the second indication information to the terminal device, where the second indication information is used to indicate a beam identifier corresponding to the first beam.

Optionally, the transceiver unit 610 is specifically configured to: receive channel state information CSI sent by the terminal device, where the CSI includes the first indication information.

Optionally, the transceiver unit 610 is further configured to:

Before the transceiver unit 610 is configured to receive the first indication information sent by the terminal device, receive third indication information that is sent by the terminal device, where the third indication information is used to indicate that the terminal device has a function of recognizing a rotation behavior.

It should be noted that, in the embodiment of the present invention, the transceiver unit 610 can be implemented by a transceiver, and the processing unit 620 can be implemented by a processor. As shown in FIG. 8, network device 700 can include a processor 710, a transceiver 720, and a memory 730. The memory 730 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 710. The various components in the network device 700 are connected by a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to the data bus.

The network device 700 shown in FIG. 8 can implement the various processes implemented by the network device in the foregoing method embodiments of FIG. 2 and FIG. 4, and details are not described herein.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the embodiments of the invention.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

In addition, each functional unit in the embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention, or the part contributing to the prior art or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The above is only a specific embodiment of the embodiments of the present invention, but the scope of protection of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily think of the technical scope disclosed in the embodiments of the present invention. Variations or substitutions are intended to be included within the scope of the embodiments of the invention. Therefore, the scope of protection of the embodiments of the present invention should be determined by the scope of the claims.

Claims

A method of scanning a beam, the method comprising:

When the terminal device rotates, the first indication information is sent to the network device, where the first indication information is used to indicate the level identifier of the rotation behavior, so that the network device identifies the terminal device according to the level identifier. Allocating time-frequency resources;

Receiving, by the network device, a response message of the first indication message, where the response message includes indication information of the time-frequency resource;

And sending, according to the indication information of the time-frequency resource, a signal to the network device by using at least one candidate beam on the time-frequency resource, so that the network device determines a signal gain most in the at least one candidate beam. Strong first beam;

The at least one candidate beam is a partial beam in a configuration beam of the terminal device.
The method according to claim 1, wherein before the sending the first indication information to the network device, the method further includes:

Obtaining a rotation parameter of the rotation behavior, the rotation parameter including at least one of an angular velocity, an angular acceleration, and a rotation angle;

And generating the first indication information according to the rotation parameter.
The method according to claim 2, wherein the generating the first indication information according to the rotation parameter comprises:

And determining, according to the rotation parameter and the first mapping relationship information, the level identifier, where the first mapping relationship information includes at least one level identifier, and a rotation parameter corresponding to the at least one level identifier;

And generating the first indication information according to the level identifier.
The method according to claim 2 or 3, wherein before the transmitting the signal to the network device by using at least one candidate beam, the method further comprises:

Determining, according to the time-frequency resource and the rotation parameter, a beam identifier corresponding to the at least one candidate beam, in a configuration beam of the terminal device;

The sending, by the at least one candidate beam, the signal to the network device, including:

Transmitting the signal on the at least one candidate beam according to a beam identifier corresponding to the at least one candidate beam.
The method according to claim 4, wherein the determining the beam identifier corresponding to the at least one candidate beam according to the time-frequency resource and the rotation parameter comprises:

Determining a maximum number of beams that can be transmitted on the time-frequency resource;

Determining, according to the rotation parameter and the maximum quantity, a beam identifier corresponding to the at least one candidate beam.
The method according to claim 5, wherein the maximum number is M, and the determining the beam identifier corresponding to the at least one candidate beam according to the rotation parameter and the maximum number comprises:

Determining a rotation angle of the rotation behavior according to the rotation parameter;

Compensating the second beam of the second beam of the terminal device according to the first direction to obtain a third beam, where the second beam is a beam used when the terminal device does not have the rotating behavior, the first direction In the opposite direction of the rotation behavior;

And determining, by the beam identifier corresponding to the M beams of the third beam, a beam identifier corresponding to the at least one candidate beam.
The method according to any one of claims 1 to 6, wherein the method further comprises:

Receiving, by the network device, second indication information, where the second indication information is used to indicate a beam identifier corresponding to the first beam.
The method according to any one of claims 2 to 7, wherein the terminal device is configured with a gyroscope;

The obtaining the rotation parameter of the terminal device includes:

The rotation parameter is obtained by the gyroscope.
The method according to any one of claims 1 to 8, wherein the sending the first indication information to the network device comprises:

Transmitting channel state information CSI to the network device, the CSI including the first indication information.
The method according to any one of claims 1 to 9, wherein before the sending the first indication information to the network device, the method further comprises:

Sending, to the network device, third indication information, where the third indication information is used to indicate that the terminal device has a function of recognizing a rotation behavior.
A method of scanning a beam, the method comprising:

Receiving, by the terminal device, first indication information, where the first indication information is used to indicate a level identifier of the rotation behavior;

Allocating time-frequency resources to the terminal device according to the level identifier;

Sending, by the terminal device, a response message of the first indication information, where the response message includes indication information of the time-frequency resource;

Receiving, by the at least one candidate beam, the terminal device to send a signal, wherein the at least one candidate beam is a partial beam in a configuration beam of the terminal device;

A beam identifier corresponding to the first beam having the strongest signal gain is determined in the at least one candidate beam by comparing strengths of the signals on the at least one candidate beam.
The method according to claim 11, wherein the allocating time-frequency resources to the terminal device according to the level identifier comprises:

Determining, according to the level identifier and the second mapping relationship, the number of candidate beams, where the second mapping relationship includes at least one level identifier, and a quantity of candidate beams corresponding to the at least one level identifier;

And allocating the time-frequency resource to the terminal device according to the number of candidate beams.
The method according to claim 11 or 12, wherein the method further comprises:

Sending the second indication information to the terminal device, where the second indication information is used to indicate a beam identifier corresponding to the first beam.
The method according to any one of claims 11 to 13, wherein the receiving the first indication information sent by the terminal device comprises:

Receiving channel state information CSI sent by the terminal device, where the CSI includes the first indication information.
The method according to any one of claims 11 to 14, wherein before the receiving the first indication information sent by the terminal device, the method further comprises:

And receiving, by the terminal device, third indication information, where the third indication information is used to indicate that the terminal device has a function of recognizing a rotation behavior.
A terminal device for scanning a beam, characterized in that the terminal device comprises:

a sending unit, configured to send first indication information to the network device when the terminal device generates a rotation behavior, where the first indication information is used to indicate a level identifier of the rotation behavior, so that the network device identifies the level according to the level Allocating time-frequency resources to the terminal device;

a receiving unit, configured to receive a response message of the first indication message sent by the network device, where the response message includes indication information of the time-frequency resource;

The sending unit is further configured to: send, according to the indication information of the time-frequency resource, a signal to the network device by using at least one candidate beam on the time-frequency resource, so that the network device is in the at least one Determining a first beam having the strongest signal gain among the candidate beams;

The at least one candidate beam is a partial beam in a configuration beam of the terminal device.
The terminal device according to claim 16, wherein the terminal device further comprises:

a processing unit, the processing unit is configured to:

And acquiring, before the transmitting unit is configured to send the first indication information to the network device, a rotation parameter of the rotation behavior, where the rotation parameter includes at least one of an angular velocity, an angular acceleration, and a rotation angle;

And generating the first indication information according to the rotation parameter.
The terminal device according to claim 17, wherein the processing unit is specifically configured to:

And determining, according to the rotation parameter and the first mapping relationship information, the level identifier, where the first mapping relationship information includes at least one level identifier, and a rotation parameter corresponding to the at least one level identifier;

And generating the first indication information according to the level identifier.
The terminal device according to claim 17 or 18, wherein the processing unit is further configured to:

Determining, according to the time-frequency resource and the rotation parameter, in a configuration beam of the terminal device, before the sending unit is configured to send the signal to the network device by using the at least one candidate beam a beam identifier corresponding to at least one candidate beam;

The sending unit is specifically configured to:

Transmitting the signal on the at least one candidate beam according to a beam identifier corresponding to the at least one candidate beam.
The terminal device according to claim 19, wherein the processing unit is specifically configured to:

Determining a maximum number of beams that can be transmitted on the time-frequency resource;

Determining, according to the rotation parameter and the maximum quantity, a beam identifier corresponding to the at least one candidate beam.
The terminal device according to claim 20, wherein the maximum number is M, and the processing unit is specifically configured to:

Determining a rotation angle of the rotation behavior according to the rotation parameter;

Compensating the second beam of the second beam of the terminal device according to the first direction to obtain a third beam, where the second beam is a beam used when the terminal device does not have the rotating behavior, the first direction In the opposite direction of the rotation behavior;

And determining, by the beam identifier corresponding to the M beams of the third beam, a beam identifier corresponding to the at least one candidate beam.
The terminal device according to any one of claims 16 to 21, wherein the receiving unit is further configured to:

Receiving, by the network device, second indication information, where the second indication information is used to indicate a beam identifier corresponding to the first beam.
The terminal device according to any one of claims 17 to 22, wherein the terminal device is configured with a gyroscope;

The processing unit is specifically configured to:

The rotation parameter is obtained by the gyroscope.
The terminal device according to any one of claims 16 to 23, wherein the transmitting unit is specifically configured to:

Transmitting channel state information CSI to the network device, the CSI including the first indication information.
The terminal device according to any one of claims 16 to 24, wherein the transmitting unit is further configured to:

Before the sending unit is configured to send the first indication information to the network device, send, to the network device, third indication information, where the third indication information is used to indicate that the terminal device is configured to recognize a rotation behavior. Features.
A network device for scanning a beam, the network device includes:

a transceiver unit, configured to receive first indication information sent by the terminal device, where the first indication information is used to indicate a level identifier of the rotation behavior;

a processing unit, configured to allocate a time-frequency resource to the terminal device according to the level identifier;

The transceiver unit is further configured to: send a response message of the first indication information to the terminal device, where the response message includes indication information of the time-frequency resource;

The processing unit is further configured to: receive, by the at least one candidate beam, the terminal device to send a signal, where the at least one candidate beam is a partial beam in a configured beam of the terminal device; by comparing the at least one candidate beam The strength of the upper signal determines a beam identifier corresponding to the first beam having the strongest signal gain among the at least one candidate beam.
The network device according to claim 26, wherein the processing unit is specifically configured to:

Determining, according to the level identifier and the second mapping relationship, the number of candidate beams, where the second mapping relationship includes at least one level identifier, and a quantity of candidate beams corresponding to the at least one level identifier;

And allocating the time-frequency resource to the terminal device according to the number of candidate beams.
The network device according to claim 26 or 27, wherein the transceiver unit is further configured to:

Sending the second indication information to the terminal device, where the second indication information is used to indicate a beam identifier corresponding to the first beam.
The network device according to any one of claims 26 to 28, wherein the transceiver unit is specifically configured to:

Receiving channel state information CSI sent by the terminal device, where the CSI includes the first indication information.
The network device according to any one of claims 26 to 29, wherein the transceiver unit is further configured to:

Before the receiving and receiving unit is configured to receive the first indication information sent by the terminal device, receive third indication information that is sent by the terminal device, where the third indication information is used to indicate that the terminal device is configured to recognize a rotation behavior. Features.