CN109478920B - Method for scanning beam, terminal equipment and network equipment - Google Patents
Method for scanning beam, terminal equipment and network equipment Download PDFInfo
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- CN109478920B CN109478920B CN201780041102.XA CN201780041102A CN109478920B CN 109478920 B CN109478920 B CN 109478920B CN 201780041102 A CN201780041102 A CN 201780041102A CN 109478920 B CN109478920 B CN 109478920B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
Abstract
The embodiment of the invention provides a method for scanning beams, which comprises the following steps: when the terminal equipment generates a rotation behavior, sending first indication information to the network equipment, wherein the first indication information is used for indicating a grade identifier of the rotation behavior; receiving a response message of the first indication message sent by the network device, wherein the response message includes indication information of the time-frequency resource; according to the indication information of the time frequency resource, sending a signal to the network equipment through at least one candidate wave beam on the time frequency resource; wherein the at least one candidate beam is a partial beam in the configuration beam of the terminal device. According to the method for scanning the beams, when the terminal equipment sends the rotation behavior, the network equipment can determine the first beam with the strongest signal gain only by scanning partial beams in the configuration beams of the terminal equipment through the rotation parameters, and the occupancy rate of time-frequency resources is effectively reduced.
Description
Technical Field
The embodiments of the present invention relate to the field of communications, and in particular, to a method for scanning beams, a terminal device, and a network device.
Background
Beamforming is a very important technique in the third Generation Partnership Project (3 GPP) release 14 (R14) and in the 3GPP New Air interface (3GPP New Air, 3GPP NR). However, a communication system using beamforming is very sensitive to movement or rotation of a terminal device. Specifically, the movement and rotation of the terminal device may cause a decrease in the beam pairing effect or a pairing failure between the network device and the terminal device, that is, the original beam pair cannot meet the requirement of communication link communication.
In the prior art, a terminal device usually integrates a motion sensor, such as an acceleration sensor, a gyroscope, a geomagnetic sensor, and the like, for detecting the motion behavior of a carrier. Sensor data is input into an Attitude navigation Reference System (AHRS) and a Zero-Velocity Detector (Z-VD), detection information of the AHRS and the ZVD may be referred to as Attitude (Attitude) data of the terminal device, the AHRS may estimate a rotation angle of the terminal device, and the ZVD may detect whether the device is moving. Thus, the beams used by the terminal device can be adjusted using these attitude data. Alternatively, the user is instructed to adjust the terminal device by means of the pose data.
However, the network device can only scan the configuration beam of the terminal device comprehensively and reestablish communication when finding that the communication is weakened or interrupted, which occupies a lot of time-frequency resources. Therefore, there is a need in the field of communications to provide a method for scanning beams that can ensure the communication quality and effectively reduce the time-frequency resource occupancy rate when the terminal device rotates.
Disclosure of Invention
A method for transmitting signals, a terminal device and a network device are provided. The occupancy rate of time-frequency resources can be effectively reduced when the terminal equipment rotates.
In a first aspect, a method for transmitting a signal is provided, the method comprising:
when terminal equipment generates a rotation behavior, first indication information is sent to network equipment, and the first indication information is used for indicating a grade identifier of the rotation behavior, so that the network equipment allocates time-frequency resources to the terminal equipment according to the grade identifier;
receiving a response message of the first indication message sent by the network device, wherein the response message comprises indication information of the time-frequency resource;
according to the indication information of the time frequency resource, sending a signal to the network equipment through at least one candidate beam on the time frequency resource, so that the network equipment determines a first beam with the strongest signal gain in the at least one candidate beam;
wherein the at least one candidate beam is a partial beam in a configuration beam of the terminal device.
The method for scanning the beams in the embodiment of the invention can ensure that the network equipment only needs to scan partial beams in the configuration beams of the terminal equipment through the rotation parameters, so as to determine the first beam with the strongest signal gain, and further, when the terminal equipment sends the rotation action, the network equipment effectively reduces the occupancy rate of time-frequency resources in the communication process of reestablishing.
In some possible implementations, before sending the first indication information to the network device, the method further includes:
obtaining rotation parameters of the rotation behaviors, wherein the rotation parameters comprise at least one of angular velocity, angular acceleration and rotation angle; and generating the first indication information according to the rotation parameters.
Further, the generating the first indication information according to the rotation parameter includes:
determining the grade identification according to the rotation parameter and first mapping relation information, wherein the first mapping relation information comprises at least one grade identification and a rotation parameter corresponding to the at least one grade identification; and generating the first indication information according to the grade identification.
In some possible implementations, before the transmitting the signal to the network device through the at least one candidate beam, the method further includes:
determining a beam identifier corresponding to the at least one candidate beam according to the time-frequency resource and the rotation parameter in the configuration beam of the terminal equipment; wherein the transmitting a signal to the network device through at least one candidate beam comprises:
and transmitting the signal on the at least one candidate beam according to the beam identification 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 includes:
determining the maximum number of beams capable of being sent on the time-frequency resource; and determining the beam identifier corresponding to the at least one candidate beam according to the rotation parameter and the maximum number.
Further, the determining the beam identifier corresponding to the at least one candidate beam according to the rotation parameter and the maximum number includes:
determining a rotation angle of the rotation behavior according to the rotation parameter; compensating the rotation angle for a second beam of the terminal device according to a first direction to obtain a third beam, wherein the second beam is a beam used when the terminal device does not generate the rotation behavior, and the first direction is a reverse direction of the rotation behavior; and determining the beam identifications corresponding to the M beams adjacent to the third beam as the beam identifications corresponding to the at least one candidate beam.
In some possible implementations, the method further includes:
and receiving second indication information sent by the network equipment, wherein the second indication information is used for indicating the beam identifier corresponding to the first beam.
In some possible implementations, the terminal device is configured with a gyroscope; wherein, the obtaining of the rotation parameter of the terminal device includes:
and acquiring the rotation parameters through the gyroscope.
In some possible implementations, further, the sending the first indication information to the network device includes: and sending Channel State Information (CSI) to the network equipment, wherein the CSI comprises the first indication information.
In some possible implementations, before sending the first indication information to the network device, the method further includes:
and sending third indication information to the network equipment, wherein the third indication information is used for indicating that the terminal equipment has the function of identifying the rotation behavior.
In a second aspect, there is provided a method of scanning a beam, the method comprising:
receiving first indication information sent by terminal equipment, wherein the first indication information is used for indicating a grade identifier of the rotation behavior;
allocating time-frequency resources to the terminal equipment according to the grade identification;
sending a response message of the first indication information to the terminal equipment, wherein the response message comprises the indication information of the time-frequency resource;
receiving a signal transmitted by the terminal equipment through at least one candidate beam, wherein the at least one candidate beam is a part of beams in a configuration beam of the terminal equipment;
and determining the beam identifier corresponding to the first beam with the strongest signal gain in the at least one candidate beam by comparing the strength of the signals on the at least one candidate beam.
Specifically, the network device only needs to scan a part of beams in the configuration beams of the terminal device, so that the first beam with the strongest signal gain is determined, and further, when the terminal device sends a rotation behavior, the occupancy rate of time-frequency resources is effectively reduced in the process that the network device reestablishes communication.
Further, the allocating time-frequency resources to the terminal device according to the level identifier includes:
determining the number of candidate beams according to the level identifier and a second mapping relation, wherein the second mapping relation comprises at least one level identifier and the number of candidate beams corresponding to the at least one level identifier; and distributing the time frequency resources to the terminal equipment according to the number of the candidate beams.
In some possible implementations, the method further includes:
and sending second indication information to the terminal equipment, wherein the second indication information is used for indicating the beam identifier corresponding to the first beam.
In some possible implementation manners, further, the receiving the first indication information sent by the terminal device includes: and receiving Channel State Information (CSI) sent by the terminal equipment, wherein the CSI comprises the first indication information.
In some possible implementation manners, before the receiving the first indication information sent by the terminal device, the method further includes:
and receiving third indication information sent by the terminal equipment, wherein the third indication information is used for indicating that the terminal equipment has the function of identifying the 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 a network device when a 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 allocates a time-frequency resource to the terminal device according to the level identifier;
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: according to the indication information of the time frequency resource, sending a signal to the network equipment through at least one candidate beam on the time frequency resource, so that the network equipment determines a first beam with the strongest signal gain in the at least one candidate beam;
wherein the at least one candidate beam is a partial beam in a configuration beam of the terminal device.
In a fourth aspect, a terminal device is provided, the terminal device comprising:
the transceiver is used for sending first indication information to network equipment when terminal equipment generates a rotation behavior, wherein the first indication information is used for indicating a grade identifier of the rotation behavior, so that the network equipment allocates time-frequency resources to the terminal equipment according to the grade identifier; receiving a response message of the first indication message sent by the network device, wherein the response message comprises indication information of the time-frequency resource; according to the indication information of the time frequency resource, sending a signal to the network equipment through at least one candidate beam on the time frequency resource, so that the network equipment determines a first beam with the strongest signal gain in the at least one candidate beam;
wherein the at least one candidate beam is a partial beam in a configuration beam of the terminal device.
In a fifth aspect, a network device is provided, the network device comprising:
the receiving and sending unit is used for receiving first indication information sent by terminal equipment, and the first indication information is used for indicating the grade identification of the rotation behavior;
the processing unit is used for distributing time-frequency resources for the terminal equipment according to the grade identification;
the transceiving unit is further configured to: sending a response message of the first indication information to the terminal equipment, wherein the response message comprises the indication information of the time-frequency resource;
the processing unit is further to: receiving a signal transmitted by the terminal equipment through at least one candidate beam, wherein the at least one candidate beam is a part of beams in a configuration beam of the terminal equipment; and determining the beam identifier corresponding to the first beam with the strongest signal gain in the at least one candidate beam by comparing the strength of the signals on the at least one candidate beam.
In a sixth aspect, a network device is provided, the network device comprising:
the transceiver is used for receiving first indication information sent by terminal equipment, and the first indication information is used for indicating the grade identification of the rotation behavior;
the processor is used for distributing time-frequency resources for the terminal equipment according to the grade identification;
the transceiver is further configured to: sending a response message of the first indication information to the terminal equipment, wherein the response message comprises the indication information of the time-frequency resource;
the processor is further configured to: receiving a signal transmitted by the terminal equipment through at least one candidate beam, wherein the at least one candidate beam is a part of beams in a configuration beam of the terminal equipment; and determining the beam identifier corresponding to the first beam with the strongest signal gain in the at least one candidate beam by comparing the strength of the signals on the at least one candidate beam.
Drawings
Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present invention.
Fig. 2 is a schematic flow diagram of a method of scanning a beam according to an embodiment of the invention.
Fig. 3 is a schematic illustration of the turning behavior according to an embodiment of the invention.
Fig. 4 is another schematic flow diagram of a method of scanning a beam in accordance with 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
Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present invention, and it should be understood that fig. 1 is only an exemplary illustration, and the present invention is not limited thereto.
As shown in fig. 1, communication system 100 may include a terminal device 110 and a network device 120. Network device 120 may communicate with terminal device 110 over the air. Network device 120 may refer to an entity on the network side that transmits or receives signals, such as a base station. The UE may be any terminal, for example, the UE may be a user equipment for Machine Type Communication (MTC) or the like.
Wherein, both the terminal device 110 and the network device 120 can rotate or translate.
That is to say, the technical solution of the embodiment of the present invention can be applied to various communication systems. For example, a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a 5G communication System, a Long Term Evolution (Long Term Evolution), an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), and the like.
Various embodiments are described herein in connection with network device 120 and terminal device 110.
The network device 120 may be a base station or a network side device with a base station function. For example, the network device may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an Evolved Node B (eNB or eNodeB) in an LTE system, or a relay Station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or the like.
It should be understood that the embodiment of the present invention is described by taking the case where the terminal device transmits the rotation behavior as an example, but is not limited thereto. For example, based on the same implementation manner, when the network device performs a rotation action, the response message of the first indication information may be directly sent to the terminal device.
Fig. 2 is a schematic flow chart diagram of a method 200 of scanning a beam in accordance with an embodiment of the present invention. As shown in fig. 2, the method 200 includes:
210. and when the terminal equipment generates a rotation behavior, sending first indication information to the network equipment.
Specifically, when a terminal device has a rotation behavior, first indication information is sent to a network device, where the first indication information is used to indicate a level identifier of the rotation behavior, so that the network device allocates a time-frequency resource to the terminal device according to the level identifier.
That is to say, 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 indicates that the terminal device has a function of identifying a turning behavior. For example, the terminal device sends the third indication information to the network device when the terminal device is started for the first time. For another example, the terminal device periodically transmits the third indication information, and so on.
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 only one identifier for classifying the rotation behavior. The embodiments of the present invention are not particularly limited.
It should also be understood that the rotation behavior in the embodiment of the present invention refers to translation and/or rotation of the terminal device in a three-dimensional space, or translation and/or rotation in a planar space. The translation and/or rotation is only one kind of association relation describing the associated object, and indicates that three kinds of relations can exist. In particular, translation and/or rotation may represent: only translation, both translation and rotation, and only rotation.
For example, as an example, the terminal device (rigid body) may be divided into 6 degrees of freedom in an unconstrained spatial space. That is, the terminal device can be translated in 3 orthogonal directions and also can be rotated about the 3 orthogonal directions as axes, thereby having 6 degrees of freedom.
Specifically, as shown in fig. 3, taking a three-dimensional coordinate system as an example, the x axis is perpendicular to the mobile phone screen, the y axis is parallel to the short side of the mobile phone screen, the z axis is parallel to the long side of the mobile phone screen, and the 6 degrees of freedom are: translation along the x-axis, translation along the y-axis, translation along the z-axis, rotation about the x-axis, rotation about the y-axis, and rotation about the z-axis.
For another example, as another embodiment, the terminal device (rigid body) is constrained in a plane, and there are only three degrees of freedom in this plane, that is, the terminal device can be translated in 2 orthogonal directions in the plane, and can also be rotated about a direction perpendicular to the plane, thereby having 3 degrees of freedom.
Specifically, taking a two-dimensional coordinate system as an example, if the plane is an X-Y plane in fig. 3, the 3 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-mentioned 6 degrees of freedom and 3 degrees of freedom are exemplary descriptions of the turning behavior of the terminal device in the embodiment of the present invention, and the present invention is not limited to this.
Optionally, in this embodiment of the present invention, the terminal device may generate the first indication information by obtaining 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 rotation angle.
Specifically, the terminal device acquires the rotation parameter of the rotation behavior through the sensor. For example, acceleration sensors, gyroscopes, geomagnetic sensors, and the like are used to detect the motion behavior of the carrier. Among them, the gyroscope, also called angular velocity sensor, is different from an accelerometer (G-sensor), and its measured physical quantity is the rotational angular velocity during deflection and tilt. On the terminal equipment, the complete 3D motion cannot be measured or reconstructed only by using an accelerometer, and the G-sensor can only detect the axial linear motion when the rotational motion cannot be measured. However, the gyroscope can well measure the rotation and deflection actions, so that the actual action of a user, namely the rotation parameters corresponding to the rotation action of the terminal equipment can be accurately analyzed and judged. This is capable of being implemented by those skilled in the art, and the embodiments of the present invention will not be described in detail.
The following describes an implementation manner of generating the first indication information according to the rotation parameters after the terminal device obtains the rotation parameters.
Optionally, in this embodiment of the present invention, the terminal device may first determine, according to the rotation parameter and the first mapping relationship information, a level identifier of the rotation behavior, 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; then, the first indication information is generated according to the grade mark. For example, the first indication information includes the rank indication.
For example, the level identification may be 1bit information. Specifically, when the rotation parameter of the terminal device exceeds the first threshold value and is smaller than the second threshold value, this level is identified as 1, when the rotation parameter exceeds the second threshold value and is smaller than the third threshold value, this level is identified as 2, and so on.
It should be understood that the above-described level identification is 1-bit information only for illustrative purposes. Embodiments of the present invention are not limited thereto, and for example, the level indicator may also directly include the rotation parameter.
220. Receiving a response message of the first indication message sent by the network device, wherein 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 message 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 information; and generating a response message of the first indication information according to the time frequency resource, wherein the response message comprises the indication information of the time frequency resource. And sending a response message of the first indication information to the terminal equipment.
Optionally, the network device determines the number of candidate beams according to the level identifier and a 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; and allocating the time frequency resource to the terminal equipment according to the number of the candidate beams.
Specifically, the network device in the embodiment of the present invention may determine, according to the level identifier in the first indication information, the number of candidate beams that need to be scanned, and then allocate time-frequency resources to the terminal device according to the number of candidate beams that need to be scanned.
230. According to the indication information of the time frequency resource, on the time frequency resource, sending a signal to the network equipment through at least one candidate wave beam
Specifically, the terminal device sends a signal to the network device through at least one candidate beam on the time-frequency resource according to the indication information of the time-frequency resource, so that the network device determines a first beam with the strongest signal gain among 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. 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 part of the configuration beams of the terminal device; and, by comparing the strength of the signal on the at least one candidate beam, a first beam with the strongest signal gain can be determined among the at least one candidate beam.
The basic idea of the beamforming technology is to divide a space into a plurality of regions, and a terminal device sends out beams to one to several regions on a specific time slice, so that the beams can be sent out in all the spaces after a plurality of time slices, that is, a network device can also scan all the spaces. The advantages of using the beamforming technology are: by concentrating the antenna energy in one direction, stronger signals in a certain direction can be obtained, and better communication distance or speed can be achieved. But can only be concentrated in a certain number of directions.
There may be multiple situations due to signal degradation. For example, signal blocking, i.e., no movement of the terminal device and the network and network devices occurs, but a blocking object occurs between the network device and the terminal device; or, the terminal equipment sends movement due to the movement of the user, so that the middle is blocked. As another example, the terminal device is rotated, for example, the user turns 90 degrees, and other conditions are not changed.
However, for the network device, the reason for the signal attenuation or interruption is not known, and only when the communication is found to be attenuated or interrupted, the configured beam of the terminal device is scanned comprehensively, the beam with the strongest signal gain is re-determined, and the communication is re-established, which occupies a lot of time-frequency resources.
The method for scanning the beams in the embodiment of the invention can ensure that the network equipment only needs to scan partial beams in the configuration beams of the terminal equipment through the rotation parameters, so as to determine the first beam with the strongest signal gain, and further, when the terminal equipment sends the rotation action, the network equipment effectively reduces the occupancy rate of time-frequency resources in the communication process of reestablishing.
It should be noted that there is one beam identification for each configured beam of the terminal device. For example, the configuration beam of the terminal device is 8, that is, one beam is configured every 45 °, wherein the 8 beams respectively correspond to one identifier. For example, the beam identifiers corresponding to the 8 beams are 0#, 1#, 2#, 3#, 4#, 5#, 6#, and 7# respectively, and when the terminal device transmits a signal through the 1# beam, the network device receives the signal by scanning the 1# beam. It should also be understood that the candidate beam in the embodiment of the present invention refers to a beam with a strong signal gain, which is determined by the terminal device according to the rotation parameter.
In the embodiment of the present invention, optionally, in the configured 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 at least one candidate beam; and transmitting the signal on the at least one candidate beam according to the beam identification corresponding to the at least one candidate beam. In other words, the network device may determine the number of candidate beams that need 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 that need to be scanned.
Specifically, after receiving a response message of first indication information sent by a network device, a terminal device calculates the maximum number of beams that can be sent through a time-frequency resource indicated in the response message; determining a beam identifier corresponding to at least one candidate beam according to the rotation parameter and the maximum number; then, the signal is transmitted on the at least one candidate beam according to the beam identification corresponding to the at least one candidate beam.
Optionally, the maximum number is M, and the terminal device may determine the rotation angle of the rotation behavior according to the rotation parameter; compensating the rotation angle of a second beam of the terminal equipment according to a first direction to obtain a third beam, wherein the second beam is a beam used when the rotation behavior does not occur to the terminal equipment, and the first direction is the opposite direction of the rotation behavior; and determining the beam identifications corresponding to the M beams adjacent to the third beam as the beam identifications corresponding to the at least one candidate beam.
For example, in a planar motion system, the rotation may be clockwise or counterclockwise.
Assuming that the maximum number is M, the beam identifier used by the terminal device before the rotation action occurs is a 2# beam, and the rotation action is clockwise rotation by 30 °, when determining a possible beam identifier of the candidate beam, the terminal device may rotate the 2# beam by 30 ° counterclockwise to obtain a third beam corresponding to the 2# beam compensated region, and determine the beam identifiers corresponding to M beams adjacent to the third beam as the beam identifier corresponding to the at least one candidate beam.
While the above is described by way of example only with a system of planar motion and angular compensation, embodiments of the present invention may also be used to make angles in three-dimensional space. Compensation can also be made by angular velocity and angular acceleration, etc. The embodiments of the present invention are not particularly 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 sent according to the time-frequency resource, and then directly determine the candidate beam identifier. Or the candidate beams of the terminal device may be sorted according to the rotation parameters, and then the beam identifiers corresponding to the candidate beams are directly determined in sequence according to the time-frequency resources, which is not specifically limited in the embodiment of the present invention.
In this embodiment of the present invention, optionally, after determining the beam identifier corresponding to the first beam, the network device may send 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 a level identifier of the turning behavior, the second indication information is used to indicate a beam identifier of the first beam, and the third indication information is used to indicate whether the terminal device has a function of detecting the turning behavior.
That is, the terms "first", "second" and "third" are merely used to distinguish different information, and the number, type, etc. of the information are not limited, that is, the scope of the embodiment of the present invention is not limited.
Fig. 4 is a schematic flow chart diagram of a method 300 of scanning a beam in accordance with an embodiment of the present invention. As shown in fig. 4, the method 300 includes:
and 310, when the terminal equipment generates the rotation behavior, generating first indication information, wherein the first indication information is used for indicating the grade identification of the rotation behavior.
Specifically, when the terminal device has a rotation behavior, the rotation behavior is detected by the gyroscope, a rotation parameter is obtained, a level identifier of the rotation behavior is determined according to the rotation parameter, and the first indication information is generated and used for indicating the level identifier of the rotation behavior.
And 320, sending 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.
And 230, generating a response message of the first indication information according to the level identification, wherein the response message comprises indication information of the time-frequency resource.
Specifically, after receiving first indication information sent by a terminal device, a network device allocates a time-frequency resource to the terminal device according to a level identifier of a rotation behavior indicated by the first indication information; and generating a response message of the first indication information according to the time frequency resource, wherein the response message comprises the indication information of the time frequency resource.
340, sending the response message.
Specifically, the network device transmits a response message of the first indication information to the terminal device after generating the response message.
350, determining the beam identifier corresponding to at least one candidate beam according to the time frequency resource.
Specifically, after receiving a response message of first indication information sent by a network device, a terminal device calculates the maximum number of beams that can be sent through a time-frequency resource indicated in the response message; and determining the beam identifier corresponding to at least one candidate beam according to the rotation parameter and the maximum number. Wherein the at least one candidate beam is a partial beam in the configuration beam of the terminal device.
Transmitting 360 a signal to the network device through at least one candidate beam.
Specifically, after determining a beam identifier corresponding to at least one candidate beam, the terminal device transmits the signal on the at least one candidate beam according to the beam identifier corresponding to the at least one candidate beam.
A first beam with the strongest signal gain is determined among the at least one candidate beam 370.
Specifically, the network device receives a signal transmitted by the terminal device through the at least one candidate beam, compares the strength of the signal on the at least one candidate beam, and determines a first beam with the strongest signal gain in the at least one candidate beam.
Therefore, the network equipment only needs to scan partial wave beams in the configuration wave beams of the terminal equipment, namely, the first wave beam with the strongest signal gain is determined, and further, when the terminal equipment sends a rotation behavior, the occupancy rate of time-frequency resources is effectively reduced in the process that the network equipment reestablishes communication.
The method for scanning beams according to the embodiment of the present invention is described above with reference to fig. 2 to 4, and the terminal device and the network device according to the embodiment of the present invention are described below with reference to the drawings.
Fig. 5 is a schematic block diagram of a terminal device 400 of an embodiment of the present invention.
As shown in fig. 5, the terminal apparatus 400 includes:
a sending unit 410, configured to send, when a terminal device performs a rotation behavior, first indication information to a network device, where the first indication information is used to indicate a level identifier of the rotation behavior, so that the network device allocates a time-frequency resource to the terminal device according to the level identifier;
a receiving unit 420, 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: according to the indication information of the time frequency resource, sending a signal to the network equipment through at least one candidate beam on the time frequency resource, so that the network equipment determines a first beam with the strongest signal gain in 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.
Optionally, the terminal device further includes: a processing unit 430, the processing unit 430 to:
before the sending unit 410 is configured to send the first indication information to the network device, obtaining 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.
Optionally, the processing unit 430 is specifically configured to:
determining the grade mark according to the rotation parameter and first mapping relation information, wherein the first mapping relation information comprises at least one grade mark and a rotation parameter corresponding to the at least one grade mark; and generating the first indication information according to the grade mark.
Optionally, the processing unit 430 is further configured to:
before the sending unit 410 is configured to send the signal to the network device through the at least one candidate beam, in a configuration beam of the terminal device, a beam identifier corresponding to the at least one candidate beam is determined according to the time-frequency resource and the rotation parameter; wherein, the sending unit 410 is specifically configured to:
and transmitting the signal on the at least one candidate beam according to the beam identification corresponding to the at least one candidate beam.
The processing unit 430 is specifically configured to:
determining the maximum number of beams which can be sent on the time frequency resource; and determining the beam identifier corresponding to the at least one candidate beam according to the rotation parameter and the maximum number.
Optionally, the maximum number is M, and the processing unit 430 is specifically configured to:
determining the rotation angle of the rotation behavior according to the rotation parameter; compensating the rotation angle of a second beam of the terminal equipment according to a first direction to obtain a third beam, wherein the second beam is a beam used when the rotation behavior does not occur to the terminal equipment, and the first direction is the opposite direction of the rotation behavior; and determining the beam identifications corresponding to the M beams adjacent to the third beam as the beam identifications corresponding to the at least one candidate beam.
Optionally, the receiving unit 420 is further configured to:
and receiving second indication information sent by the network equipment, wherein the second indication information is used for indicating the 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: and acquiring the rotation parameters through the gyroscope.
Optionally, the sending unit 410 is specifically configured to: and sending Channel State Information (CSI) to the network equipment, wherein the CSI comprises 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, third indication information is sent to the network device, where the third indication information is used to indicate that the terminal device has a function of identifying a turning behavior.
It should be noted that, in the embodiment of the present invention, both the sending unit 410 and the receiving unit 420 may be implemented by a transceiver, and the processing unit 430 may be implemented by a processor. As shown in fig. 6, terminal device 500 may include a processor 510, a transceiver 520, and a memory 530. Memory 530 may be used to store, among other things, indication information, and may also be used to store code, instructions, etc. that are executed by processor 510. The individual components in the terminal device 500 are connected via a bus system, which comprises, in addition to a data bus, a power bus, a control bus and a status signal bus.
The terminal device 500 shown in fig. 6 can implement the processes implemented by the terminal device in the foregoing method embodiments of fig. 2 and fig. 4, and details are not repeated here to avoid repetition.
Fig. 7 is a schematic block diagram of a network device 600 of an embodiment of the present invention.
As shown in fig. 7, the network device 600 includes:
a transceiver unit 610, configured to receive first indication information sent by a terminal device, where the first indication information is used to indicate a level identifier of the rotation behavior;
a processing unit 620, configured to allocate time-frequency resources to the terminal device according to the level identifier;
the transceiving unit 610 is further configured to: sending a response message of the first indication information to the terminal equipment, wherein the response message comprises the indication information of the time-frequency resource;
the processing unit 620 is further configured to: receiving a signal transmitted by the terminal equipment through at least one candidate beam, wherein the at least one candidate beam is a part of beams in a configuration beam of the terminal equipment; and determining the beam identifier corresponding to the first beam with the strongest signal gain in the at least one candidate beam by comparing the strength of the signals on the at least one candidate beam.
Optionally, the processing unit 620 is specifically configured to:
determining the number of candidate beams according to the grade mark and a second mapping relation, wherein the second mapping relation comprises at least one grade mark and the number of candidate beams corresponding to the at least one grade mark; and allocating the time frequency resource to the terminal equipment according to the number of the candidate beams.
Optionally, the transceiver unit 610 is further configured to: and sending second indication information to the terminal equipment, wherein the second indication information is used for indicating the beam identifier corresponding to the first beam.
Optionally, the transceiver unit 610 is specifically configured to: and receiving Channel State Information (CSI) sent by the terminal equipment, wherein the CSI comprises 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 sent by the terminal device, where the third indication information is used to indicate that the terminal device has a function of identifying a rotation behavior.
It should be noted that, in the embodiment of the present invention, the transceiver unit 610 may be implemented by a transceiver, and the processing unit 620 may be implemented by a processor. As shown in fig. 8, network device 700 may include a processor 710, a transceiver 720, and a memory 730. Memory 730 may be used to store, among other things, indication information, and may also be used to store code, instructions, etc. that are executed by processor 710. The various components in network device 700 are connected by a bus system that includes a power bus, a control bus, and a status signal bus in addition to a data bus.
The network device 700 shown in fig. 8 is capable of implementing the processes implemented by the network device in the foregoing method embodiments of fig. 2 and fig. 4, and details are not repeated here to avoid repetition.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present embodiments.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the elements may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only a specific implementation of the embodiments of the present invention, but the scope of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the embodiments of the present invention, and all such changes or substitutions should be covered by the scope of the embodiments of the present invention. Therefore, the protection scope of the embodiments of the present invention shall be subject to the protection scope of the claims.
Claims (30)
1. A method of scanning a beam, the method comprising:
when terminal equipment generates a rotation behavior, first indication information is sent to network equipment, and the first indication information is used for indicating a grade identifier of the rotation behavior, so that the network equipment allocates time-frequency resources to the terminal equipment according to the grade identifier;
receiving a response message of the first indication information sent by the network equipment, wherein the response message comprises indication information of the time-frequency resource;
according to the indication information of the time frequency resource, sending a signal to the network equipment through at least one candidate beam on the time frequency resource, so that the network equipment determines a first beam with the strongest signal gain in the at least one candidate beam;
wherein the at least one candidate beam is a partial beam in a configuration beam of the terminal device.
2. The method of claim 1, wherein before sending the first indication information to the network device, the method further comprises:
obtaining rotation parameters of the rotation behaviors, wherein the rotation parameters comprise at least one of angular velocity, angular acceleration and rotation angle;
and generating the first indication information according to the rotation parameters.
3. The method of claim 2, wherein the generating first indication information according to the rotation parameter comprises:
determining the grade identification according to the rotation parameter and first mapping relation information, wherein the first mapping relation information comprises at least one grade identification and a rotation parameter corresponding to the at least one grade identification;
and generating the first indication information according to the grade identification.
4. The method of claim 2, wherein prior to transmitting the signal to the network device via the at least one candidate beam, the method further comprises:
determining a beam identifier corresponding to the at least one candidate beam according to the time-frequency resource and the rotation parameter in the configuration beam of the terminal equipment;
wherein the transmitting a signal to the network device through at least one candidate beam comprises:
and transmitting the signal on the at least one candidate beam according to the beam identification corresponding to the at least one candidate beam.
5. 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 the maximum number of beams capable of being sent on the time-frequency resource;
and determining the beam identifier corresponding to the at least one candidate beam according to the rotation parameter and the maximum number.
6. The method of claim 5, wherein the maximum number is M, and wherein 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 rotation angle for a second beam of the terminal device according to a first direction to obtain a third beam, wherein the second beam is a beam used when the terminal device does not generate the rotation behavior, and the first direction is a reverse direction of the rotation behavior;
and determining the beam identifications corresponding to the M beams adjacent to the third beam as the beam identifications corresponding to the at least one candidate beam.
7. The method according to any one of claims 1 to 6, further comprising:
and receiving second indication information sent by the network equipment, wherein the second indication information is used for indicating the beam identifier corresponding to the first beam.
8. The method according to any one of claims 2 to 6, characterized in that the terminal device is configured with a gyroscope;
wherein, the obtaining of the rotation parameter of the terminal device includes:
and acquiring the rotation parameters through the gyroscope.
9. The method according to any of claims 1 to 6, wherein the sending the first indication information to the network device comprises:
and sending Channel State Information (CSI) to the network equipment, wherein the CSI comprises the first indication information.
10. The method according to any of claims 1 to 6, wherein before the sending the first indication information to the network device, the method further comprises:
and sending third indication information to the network equipment, wherein the third indication information is used for indicating that the terminal equipment has the function of identifying the rotation behavior.
11. A method of scanning a beam, the method comprising:
receiving first indication information sent by terminal equipment, wherein the first indication information is used for indicating a grade identifier of a rotation behavior;
allocating time-frequency resources to the terminal equipment according to the grade identification;
sending a response message of the first indication information to the terminal equipment, wherein the response message comprises the indication information of the time-frequency resource;
receiving a signal transmitted by the terminal equipment through at least one candidate beam, wherein the at least one candidate beam is a part of beams in a configuration beam of the terminal equipment;
and determining the beam identifier corresponding to the first beam with the strongest signal gain in the at least one candidate beam by comparing the strength of the signals on the at least one candidate beam.
12. The method of claim 11, wherein the allocating time-frequency resources to the terminal device according to the rank indicator comprises:
determining the number of candidate beams according to the level identifier and a second mapping relation, wherein the second mapping relation comprises at least one level identifier and the number of candidate beams corresponding to the at least one level identifier;
and distributing the time frequency resources to the terminal equipment according to the number of the candidate beams.
13. The method according to claim 11 or 12, characterized in that the method further comprises:
and sending second indication information to the terminal equipment, wherein the second indication information is used for indicating the beam identifier corresponding to the first beam.
14. The method according to claim 11 or 12, wherein the receiving the first indication information sent by the terminal device comprises:
and receiving Channel State Information (CSI) sent by the terminal equipment, wherein the CSI comprises the first indication information.
15. The method according to claim 11 or 12, wherein before receiving the first indication information sent by the terminal device, the method further comprises:
and receiving third indication information sent by the terminal equipment, wherein the third indication information is used for indicating that the terminal equipment has the function of identifying the rotation behavior.
16. A terminal device for scanning a beam, the terminal device comprising:
a sending unit, configured to send first indication information to a network device when a 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 allocates a time-frequency resource to the terminal device according to the level identifier;
a receiving unit, configured to receive a response message of the first indication information sent by the network device, where the response message includes indication information of the time-frequency resource;
the sending unit is further configured to: according to the indication information of the time frequency resource, sending a signal to the network equipment through at least one candidate beam on the time frequency resource, so that the network equipment determines a first beam with the strongest signal gain in the at least one candidate beam;
wherein the at least one candidate beam is a partial beam in a configuration beam of the terminal device.
17. The terminal device according to claim 16, wherein the terminal device further comprises:
a processing unit to:
before the sending unit is used for sending the first indication information to the network device, obtaining a rotation parameter of the rotation behavior, wherein the rotation parameter comprises at least one of an angular velocity, an angular acceleration and a rotation angle;
and generating the first indication information according to the rotation parameters.
18. The terminal device of claim 17, wherein the processing unit is specifically configured to:
determining the grade identification according to the rotation parameter and first mapping relation information, wherein the first mapping relation information comprises at least one grade identification and a rotation parameter corresponding to the at least one grade identification;
and generating the first indication information according to the grade identification.
19. The terminal device of claim 17, wherein the processing unit is further configured to: before the sending unit is configured to send the signal to the network device through the at least one candidate beam, determining, in a 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;
wherein the sending unit is specifically configured to:
and transmitting the signal on the at least one candidate beam according to the beam identification corresponding to the at least one candidate beam.
20. The terminal device of claim 19, wherein the processing unit is specifically configured to:
determining the maximum number of beams capable of being sent on the time-frequency resource;
and determining the beam identifier corresponding to the at least one candidate beam according to the rotation parameter and the maximum number.
21. The terminal device of 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 rotation angle for a second beam of the terminal device according to a first direction to obtain a third beam, wherein the second beam is a beam used when the terminal device does not generate the rotation behavior, and the first direction is a reverse direction of the rotation behavior;
and determining the beam identifications corresponding to the M beams adjacent to the third beam as the beam identifications corresponding to the at least one candidate beam.
22. The terminal device according to any of claims 16 to 21, wherein the receiving unit is further configured to:
and receiving second indication information sent by the network equipment, wherein the second indication information is used for indicating the beam identifier corresponding to the first beam.
23. The terminal device according to any one of claims 17 to 21, characterized in that the terminal device is configured with a gyroscope;
wherein the processing unit is specifically configured to:
and acquiring the rotation parameters through the gyroscope.
24. The terminal device according to any one of claims 16 to 21, wherein the sending unit is specifically configured to:
and sending Channel State Information (CSI) to the network equipment, wherein the CSI comprises the first indication information.
25. The terminal device according to any of claims 16 to 21, wherein the sending unit is further configured to:
and before the sending unit is used for sending the first indication information to the network equipment, sending third indication information to the network equipment, wherein the third indication information is used for indicating that the terminal equipment has a function of identifying the rotation behavior.
26. A network device that scans beams, the network device comprising:
the receiving and sending unit is used for receiving first indication information sent by the terminal equipment, and the first indication information is used for indicating a grade mark of the rotation behavior;
the processing unit is used for distributing time-frequency resources for the terminal equipment according to the grade identification;
the transceiver unit is further configured to: sending a response message of the first indication information to the terminal equipment, wherein the response message comprises the indication information of the time-frequency resource;
the processing unit is further to: receiving a signal transmitted by the terminal equipment through at least one candidate beam, wherein the at least one candidate beam is a part of beams in a configuration beam of the terminal equipment; and determining the beam identifier corresponding to the first beam with the strongest signal gain in the at least one candidate beam by comparing the strength of the signals on the at least one candidate beam.
27. The network device of claim 26, wherein the processing unit is specifically configured to:
determining the number of candidate beams according to the level identifier and a second mapping relation, wherein the second mapping relation comprises at least one level identifier and the number of candidate beams corresponding to the at least one level identifier;
and distributing the time frequency resources to the terminal equipment according to the number of the candidate beams.
28. The network device according to claim 26 or 27, wherein the transceiver unit is further configured to:
and sending second indication information to the terminal equipment, wherein the second indication information is used for indicating the beam identifier corresponding to the first beam.
29. The network device according to claim 26 or 27, wherein the transceiver unit is specifically configured to:
and receiving Channel State Information (CSI) sent by the terminal equipment, wherein the CSI comprises the first indication information.
30. The network device according to claim 26 or 27, wherein the transceiver unit is further configured to:
and before the transceiver unit is used for receiving the first indication information sent by the terminal equipment, receiving third indication information sent by the terminal equipment, wherein the third indication information is used for indicating that the terminal equipment has a function of identifying a rotation behavior.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611248577X | 2016-12-29 | ||
| CN201611248577 | 2016-12-29 | ||
| PCT/CN2017/077639 WO2018120450A1 (en) | 2016-12-29 | 2017-03-22 | Beam scanning method, terminal device and network device |
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| Publication Number | Publication Date |
|---|---|
| CN109478920A CN109478920A (en) | 2019-03-15 |
| CN109478920B true CN109478920B (en) | 2021-02-09 |
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| CN201780041102.XA Active CN109478920B (en) | 2016-12-29 | 2017-03-22 | Method for scanning beam, terminal equipment and network equipment |
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| WO (1) | WO2018120450A1 (en) |
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| CN111726135B (en) * | 2019-03-22 | 2022-01-14 | 成都华为技术有限公司 | Communication method and communication device |
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| CN1221543A (en) * | 1997-02-13 | 1999-06-30 | 诺基亚电信股份公司 | Method and apparatus for directional radio communication |
| CN1864344A (en) * | 2003-08-06 | 2006-11-15 | 香港应用科技研究院有限公司 | Location positioning in wireless networks |
| CN103814529A (en) * | 2011-07-15 | 2014-05-21 | 三星电子株式会社 | Apparatus and method for beam locking in wireless communication system |
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| WO2005066649A2 (en) * | 2003-12-29 | 2005-07-21 | Raytheon Canada Limited | Radar receiver motion compensation system and method |
| JP5746017B2 (en) * | 2008-05-09 | 2015-07-08 | アップル インコーポレイテッド | System and method for supporting antenna beamforming in cellular networks |
| US9853707B2 (en) * | 2014-09-16 | 2017-12-26 | Mediatek Inc | Channel state information collection for wireless communication system with beamforming |
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2017
- 2017-03-22 WO PCT/CN2017/077639 patent/WO2018120450A1/en active Application Filing
- 2017-03-22 CN CN201780041102.XA patent/CN109478920B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1221543A (en) * | 1997-02-13 | 1999-06-30 | 诺基亚电信股份公司 | Method and apparatus for directional radio communication |
| CN1864344A (en) * | 2003-08-06 | 2006-11-15 | 香港应用科技研究院有限公司 | Location positioning in wireless networks |
| CN103814529A (en) * | 2011-07-15 | 2014-05-21 | 三星电子株式会社 | Apparatus and method for beam locking in wireless communication system |
| CN105814809A (en) * | 2013-12-16 | 2016-07-27 | 华为技术有限公司 | Method and device for adjusting wavebeam width in wireless communication system |
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| WO2018120450A1 (en) | 2018-07-05 |
| CN109478920A (en) | 2019-03-15 |
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