CN115442746A

CN115442746A - Beam tracking method, device, apparatus and storage medium

Info

Publication number: CN115442746A
Application number: CN202110626050.0A
Authority: CN
Inventors: 侯利明; 康绍莉; 缪德山; 孙韶辉
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-12-06

Abstract

The embodiment of the application provides a beam tracking method, a device and a storage medium, wherein the method comprises the following steps: receiving motion state information sent by terminal equipment; predicting the motion direction of the terminal equipment in a first wave beam according to the motion state information to obtain a prediction result, wherein the prediction result comprises one or more predicted motion directions, and the first wave beam is the wave beam which covers the terminal equipment at present; and performing beam tracking on each predicted movement direction in the one or more predicted movement directions according to a set beam tracking scheduling mode. Therefore, the embodiment of the application realizes continuous and uninterrupted service for the high-speed terminal and improves the communication quality.

Description

Beam tracking method, device, apparatus and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a beam tracking method, device, apparatus, and storage medium.

Background

The low earth orbit satellite hopping beam communication system consists of a ground gateway station (such as a base station), a satellite (beam pointing hopping) and a terminal.

In the low earth orbit satellite hopping wave beam communication system, continuous service to the terminals in different directions can be realized through the hopping of the wave beam.

However, due to the large mobility characteristic of the terminal movement, the beam cannot cover the terminal in time, thereby causing the interruption of the terminal service.

Disclosure of Invention

The embodiment of the application provides a beam tracking method, device, apparatus and storage medium, which are used for solving the defect that in the prior art, due to the fact that terminal movement has a large maneuvering characteristic, a beam cannot timely cover a terminal, and therefore service of the terminal is interrupted, and continuous and uninterrupted service of a high-speed terminal can be achieved.

In a first aspect, an embodiment of the present application provides a beam tracking method, including:

receiving motion state information sent by terminal equipment;

predicting the motion direction of the terminal equipment in a first beam according to the motion state information to obtain a prediction result, wherein the prediction result comprises one or more predicted motion directions, and the first beam is the beam currently covering the terminal equipment;

and performing beam tracking on each predicted movement direction in the one or more predicted movement directions according to a set beam tracking scheduling mode.

Optionally, according to a beam tracking method of an embodiment of the present application, the motion state information includes one or more of the following:

longitude and latitude elevation information of the terminal equipment;

speed information of the terminal equipment in different directions;

and the position information of the terminal equipment in the first coordinate system.

Optionally, according to a beam tracking method according to an embodiment of the present application, the predicting a moving direction of the terminal device in a first beam according to the motion state information includes:

determining the current position of the terminal equipment in the first wave beam according to the motion state information;

predicting a direction of motion of the terminal device within a first beam based on the one or more historical locations of the terminal device and the current location.

Optionally, according to a beam tracking method according to an embodiment of the present application, performing beam tracking on each of the one or more predicted movement directions according to a set beam tracking scheduling manner, includes:

determining a second beam for tracking and covering the terminal equipment according to the predicted movement direction;

and tracking and covering the terminal equipment through the second wave beam.

Optionally, according to the beam tracking method in an embodiment of the present application, a central point of an overlapping coverage area formed by the second beam and the first beam is a current location of the terminal device.

Optionally, the beam tracking method according to an embodiment of the present application further includes:

determining whether the terminal device operates out of the coverage of the first beam according to the signal strength of the first beam and the quality of a link communicated with the first beam;

and when the terminal equipment is determined to run out of the coverage range of the first beam, releasing the first beam.

Alternatively, according to the beam tracking method of an embodiment of the present application,

the performing beam tracking in each of the one or more predicted movement directions according to the set beam tracking scheduling manner includes:

and adjusting the direction of the first beam according to the predicted movement direction, wherein the center point of the adjusted first beam is the current position of the terminal equipment.

Optionally, according to a beam tracking method according to an embodiment of the present application, the adjusting the azimuth of the first beam according to the predicted moving direction includes:

and when the deviation between the current position of the terminal equipment and the central point of the first wave beam is larger than a set angle value, adjusting the central point of the first wave beam to be the current position of the terminal equipment.

In a second aspect, an embodiment of the present application further provides a beam tracking method, including:

determining motion state information of terminal equipment in a first wave beam, wherein the first wave beam is a wave beam which currently covers the terminal equipment;

and sending the motion state information to network equipment.

longitude and latitude elevation information of the terminal equipment;

speed information of the terminal equipment in different directions;

Optionally, according to a beam tracking method according to an embodiment of the present application, the sending the motion state information to the network device includes:

determining the reporting period of the motion state information;

and sending the motion state information to the network equipment according to the reporting period.

Optionally, according to a beam tracking method according to an embodiment of the present application, the determining a reporting period of the motion state information includes:

determining the reporting period according to a first formula; wherein the first formula comprises:

T<R/(|Vu+Vs|×N)

wherein R represents a coverage diameter of the first beam; vu represents the maximum speed of the terminal device; vs represents the satellite maximum velocity; n represents the maximum reporting times of the first beam; and T represents the reporting period.

In a third aspect, an embodiment of the present application further provides a network device, including a memory, a transceiver, and a processor, where:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and implementing the steps of the beam tracking method according to the first aspect as described above.

In a fourth aspect, an embodiment of the present application provides a terminal device, including a memory, a transceiver, and a processor, where:

a memory for storing a computer program; a transceiver for transceiving data under the control of the processor; a processor for reading the computer program in the memory and implementing the steps of the beam tracking method according to the second aspect as described above.

In a fifth aspect, an embodiment of the present application provides a beam tracking apparatus, including:

the receiving unit is used for receiving the motion state information sent by the terminal equipment;

the prediction unit is configured to predict a motion direction of the terminal device in a first beam according to the motion state information to obtain a prediction result, where the prediction result includes one or more predicted motion directions, and the first beam is a beam currently covering the terminal device;

and the beam tracking unit is used for performing beam tracking on each predicted movement direction in the one or more predicted movement directions according to a set beam tracking scheduling mode.

In a sixth aspect, an embodiment of the present application provides a beam tracking apparatus, including:

a determining unit, configured to determine motion state information of a terminal device in a first beam, where the first beam is a beam currently covering the terminal device;

and the sending unit is used for sending the motion state information to the network equipment.

In a seventh aspect, an embodiment of the present application provides a processor-readable storage medium, which stores a computer program, and the computer program is configured to cause the processor to execute the steps of the beam tracking method according to the first aspect.

In an eighth aspect, embodiments of the present application provide a processor-readable storage medium, which stores a computer program for causing a processor to execute the steps of the beam tracking method according to the second aspect.

According to the beam tracking method, the device, the apparatus and the storage medium provided by the embodiment of the application, the motion state information sent by the terminal device is received, the motion direction of the terminal device in the first beam is predicted according to the motion state information to obtain a prediction result, the prediction result comprises one or more prediction motion directions, the first beam is a beam covering the terminal device currently, and beam tracking is performed in each prediction motion direction in the one or more prediction motion directions according to a set beam tracking scheduling mode, so that the situation that the beam cannot cover the terminal in time to cause interruption of terminal service is avoided, continuous and uninterrupted service for a high-speed terminal is realized, and the communication quality is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following descriptions are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a satellite hopping beam communication system;

fig. 2 is a schematic flowchart of a beam tracking method according to an embodiment of the present application;

fig. 3 is a schematic view of an application scenario of the multi-beam stitching tracking method provided in the embodiment of the present application;

FIG. 4 is a schematic diagram of an application scenario of a dual-beam overlap tracking method provided in an embodiment of the present application;

fig. 5 is a second schematic flowchart of a beam tracking method according to an embodiment of the present application;

fig. 6 is a third schematic flowchart of a beam tracking method according to an embodiment of the present application;

fig. 7 is a fourth schematic flowchart of a beam tracking method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a beam tracking apparatus according to an embodiment of the present application;

fig. 9 is a second schematic structural diagram of a beam tracking apparatus according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a network device provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Detailed Description

In the embodiment of the present application, the term "and/or" describes an association relationship of associated objects, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The low earth orbit satellite hopping beam communication system is composed of a ground gateway station (such as a base station), a satellite (beam pointing hopping) and a terminal. Low earth orbit satellite communication systems typically employ hop beam technology to increase system capacity, reduce interference, and improve configuration flexibility. Hopping the beam in the coverage area of the satellite cell according to a certain period, wherein the pointing space azimuth of each hopping beam changes, and the single stay time of the beam in each space azimuth is called dwell time; the beam hopping visit through all candidate orientations is called a hop period. For a high-speed moving terminal or an ultra-high-speed moving terminal running in the air, due to the fact that the terminal has a large maneuvering characteristic in the movement, a situation that a beam cannot cover the terminal in time occurs, and the service of the terminal is interrupted.

FIG. 1 is a schematic diagram of a satellite hopping beam communication system; as shown in fig. 1, the satellite hopping beam communication system may be a Low Earth Orbit (LEO) satellite hopping beam communication system, a Medium Earth Orbit (MEO) satellite hopping beam communication system, or a high Earth Orbit (GEO) satellite hopping beam communication system (MEO) satellite hopping beam communication system, as shown in fig. 1).

The low-earth orbit satellite hopping beam communication system is taken as an example for explanation, and the medium-earth orbit satellite hopping beam communication system and the high-earth orbit satellite hopping beam communication system are similar to the low-earth orbit satellite hopping beam communication system, and are not described in detail later.

The low-orbit satellite hopping beam communication system comprises LEO satellites and ground terminals, and the orbit height of the LEO satellites does not exceed 1500km generally. The wave beam jumps in different directions, and the whole capacity is improved on the basis of considering terminals at different positions. Since the satellite can move at a speed of 7.6km/s, the relative speed of the terminal and the satellite can reach the order of several kilometers per second even if the ground terminal does not move. Therefore, the continuous coverage of the terminal is influenced by the rapid movement of the satellite and the terminal.

In the low-orbit satellite beam hopping communication system, continuous service for terminals in different directions can be realized through beam hopping, but beam tracking is not supported.

For some aerial flight terminals with extremely high importance, extremely fast moving speed and extremely strong moving mobility, the sudden acceleration or steering movement of the terminal can cause the satellite beam coverage to be discontinuous, so that the terminal is disconnected.

In order to continuously serve a terminal moving at a high speed, the embodiment of the application provides a beam tracking method, device, apparatus and storage medium, the terminal periodically reports a position after accessing a beam, a network device predicts the direction of the terminal according to the position, the movement characteristics and the like of the terminal, and then schedules or adjusts the beam to implement continuous coverage, thereby implementing beam tracking.

The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

The technical solution provided in the embodiment of the present application may be applicable to various systems, and may be a satellite hopping beam communication system shown in fig. 1 (for example, the satellite hopping beam communication system may be a low-orbit satellite hopping beam communication system, a medium-orbit satellite hopping beam communication system, or a high-orbit satellite hopping beam communication system), or may be a 5G system. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a long term evolution (long term evolution, LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an LTE-a (long term evolution) system, a universal mobile system (universal mobile telecommunications system, UMTS), a universal internet Access (WiMAX) system, a New Radio Network (NR) system, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5 GS), and the like.

The network device related to the embodiment of the present application may be a satellite (for example, the satellite may be an LEO satellite, an MEO satellite, or a GEO satellite), or may be a base station, and the base station may include a plurality of cells that provide services for a terminal. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames and Internet Protocol (IP) packets with one another as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communications network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may also be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), may also be an evolved Node B (eNB or e-NodeB) in a Long Term Evolution (LTE) System, a 5G Base Station (gNB) in a 5G network architecture (next generation System), may also be a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico) and the like, and the present application is not limited in this embodiment. In some network architectures, a network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

The terminal device referred to in the embodiments of the present application may be a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile phone (or called a "cellular" phone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN), and may exchange languages and/or data with the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a remote station (remote station), an access point (access point), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), and a user device (user device), which is not limited in this embodiment.

Fig. 2 is one of the flow diagrams of a beam tracking method provided in this embodiment of the present application, where the beam tracking method may be used for a network device, and the network device may be a satellite in fig. 1 (for example, the satellite may be an LEO satellite, an MEO satellite, or a GEO satellite), or a base station. As shown in fig. 2, the beam tracking method may include the steps of:

step 201, receiving motion state information sent by the terminal device.

Specifically, the terminal device has the capability of simultaneously connecting pilot frequency beams, and can simultaneously connect a plurality of beams so as to improve the reliability.

After the terminal equipment accesses the network, the motion state information can be reported periodically, so that the network equipment can predict the next motion direction of the terminal according to the motion state information of the terminal, calculate a beam tracking mode based on the position of the terminal in the current beam, schedule or adjust the beam to implement continuous coverage in the next motion direction of the terminal, and ensure that the terminal service is not interrupted.

The terminal equipment accesses a network, and the identification mode of the network equipment for the aerial high-speed terminal comprises the following steps:

(1) The method is characterized in that a terminal device type identifier is added, the terminal device type identifier corresponds to a Preamble (Preamble) and a Random access opportunity (RO) resource, the identification code corresponding to the air high-speed special terminal has obvious characteristics, the network device can identify the terminal type when the terminal device is accessed, and the Preamble specially adapted to the high-speed environment corresponds to the Preamble and the like.

(2) The terminal type is judged and distinguished by using the equipment code of the terminal or the access Identification code of a Subscriber Identity Module (SIM) card, and the network equipment can identify the terminal type after the terminal equipment completes the functions of network access, authentication and the like.

The SIM card is an identity identification card and is used for distinguishing the terminal type and identifying a specific terminal; the SIM card of a special type, only to the terminal specializedly of this kind of high speed, correspond to terminal one-to-one; which terminal is specific can be identified by means of the SIM card.

Step 202, predicting the motion direction of the terminal device in the first beam according to the motion state information to obtain a prediction result, wherein the prediction result comprises one or more predicted motion directions, and the first beam is a beam currently covering the terminal device.

Specifically, when the motion direction of the terminal in the first beam is predicted according to the motion state information of the terminal, a kalman filtering method may be used, and another algorithm may also be used according to the requirement.

And step 203, performing beam tracking on each predicted motion direction in one or more predicted motion directions according to the set beam tracking scheduling mode.

Specifically, the set beam tracking scheduling manner may be configured in advance, or may be determined according to a requirement. The set beam tracking scheduling mode may be a mode, for example, inter-frequency multi-beam spread coverage tracking; there are also various ways such as inter-frequency dual beam alternate tracking and single beam continuous tracking.

It can be seen from the above embodiments that, by receiving motion state information sent by a terminal device, predicting a motion direction of the terminal device in a first beam according to the motion state information to obtain a prediction result, where the prediction result includes one or more predicted motion directions, the first beam is a beam currently covering the terminal device, and performing beam tracking in each predicted motion direction in the one or more predicted motion directions according to a set beam tracking scheduling manner, thereby avoiding a situation where a beam cannot cover the terminal in time to cause interruption of terminal service, thereby implementing continuous and uninterrupted service for a high-speed terminal, and improving communication quality.

Optionally, the motion state information comprises one or more of:

longitude and latitude elevation information of the terminal equipment;

speed information of the terminal equipment in different directions;

Specifically, the first coordinate system may be an Earth Centered Earth Fixed coordinate system (ECEF), or other coordinate systems, such as: world Geodetic System (WGS) -84 coordinate System, and the like.

Such as: the terminal reports three-dimensional coordinate information and three-dimensional speed information to the network equipment, and the network equipment needs to calculate the terminal motion condition so as to judge the position of the terminal equipment in the current beam and predict the next motion direction of the terminal equipment by utilizing the motion positions of a plurality of time points so as to schedule the beam to carry out tracking.

Another example is as follows: the network equipment projects the motion parameters of the terminal equipment to the tangential direction of the beam according to the information such as data reported by the terminal equipment, ephemeris of a satellite, and the characteristics of the current beam, calculates the speed value of the terminal equipment in the tangential direction of the beam, and calculates the position of the terminal equipment in the beam and the included angle value between the terminal equipment and the center of the beam; judging whether the terminal equipment flies away from the current wave beam or not according to the calculation results of multiple times, and predicting the next movement direction of the terminal equipment; and implementing tracking coverage according to the pre-judged scheduling beam.

It can be seen from the above embodiments that, when reporting the motion state information, the terminal device may report latitude and longitude elevation information, speed information, or position information, so that the network device can predict the next motion direction of the terminal device according to the information, which is helpful for improving the accuracy of beam tracking.

Optionally, the predicting, according to the motion state information, a motion direction of the terminal device in a first beam includes:

and predicting the movement direction of the terminal equipment in the first beam according to one or more historical positions and the current position of the terminal equipment.

In particular, one or more historical locations of the terminal device may each be located within the first beam; or both may be located outside the first beam; it is also possible that part of the historical location is located within the first beam and part of the historical location is located outside the first beam. There is no limitation in this application as to whether the historical location is within the first beam.

The embodiment shows that the network device can predict the motion direction of the terminal device according to the currently received motion state information and also according to the historical motion state information, which is beneficial to improving the accuracy of predicting the motion direction. Optionally, the set beam tracking scheduling manner includes one or more of the following:

different-frequency multi-beam expanding coverage tracking;

alternate tracking of different-frequency dual beams;

the single beam continues tracking.

Specifically, the different-frequency multi-beam expansion coverage type tracking refers to scheduling of a plurality of different-frequency beams, the different-frequency beams are deployed around the current beam where the terminal is located, rapid maneuvering and turning movement of the terminal in the air is responded, and tracking coverage is achieved.

The alternate tracking of the dual beams with different frequencies refers to that the current beam and another tracking beam are highly overlapped in a coverage area so as to deal with the rapid uncertain movement of the terminal and achieve the purpose of continuous coverage.

Single beam continuous tracking is a special case of multi-beam tracking, and only 1 beam of a satellite (for example, the satellite may be an LEO satellite, an MEO satellite, or a GEO satellite) in the scene can serve a terminal moving at a high speed.

It can be seen from the above embodiments that, when implementing beam tracking, the network device may adopt one or more of different-frequency multi-beam expansion overlay tracking, different-frequency dual-beam alternate tracking, and single-beam continuous tracking according to requirements, thereby improving flexibility of beam tracking.

Optionally, the performing, according to the set beam tracking scheduling manner, beam tracking in each of the one or more predicted movement directions includes:

and tracking and covering the terminal equipment through the second wave beam.

In particular, the first beam is of no tracking characteristics and only the second beam will track the predicted direction of movement of the terminal device. Wherein the number of the second beams may be one or more.

If the number of the second beams can be multiple, a different-frequency multi-beam expansion coverage tracking mode can be adopted to track multiple predicted movement directions of the terminal device. Wherein the plurality of second beams requires the terminal device to have the same number of receivers to implement the inter-frequency connection.

If the number of the second beams is 1, an overlap coverage area may be formed by the second beams and the first beams in a dual-beam alternate tracking manner, and a central point of the overlap coverage area is the current location of the terminal device.

It can be seen from the above embodiments that the second beam can be used to track and cover the terminal device, thereby ensuring the continuity of the terminal service and improving the communication quality.

Optionally, a central point of an overlapping coverage area formed by the second beam and the first beam is a current location of the terminal device.

Specifically, an overlapping coverage area of the second beam and the first beam may be determined according to the current location of the terminal device, that is, a central point of the overlapping coverage area is the current location of the terminal device.

According to the embodiment, the second beam can be determined according to the current position of the terminal equipment, and the beam determining efficiency is improved.

Optionally, the performing, according to the set beam tracking scheduling manner, beam tracking in each of the one or more predicted movement directions further includes:

determining whether the terminal device operates out of the coverage of the first beam according to the signal strength of the first beam and the link quality of communication with the first beam;

Specifically, if the terminal device operates out of the coverage of the first beam and enters the coverage of the second beam, the first beam may be released at this time, so that resource waste may be avoided. When the first beam is released, the second beam will change to have no tracking characteristics, while the other beams start tracking the direction of movement of the terminal.

As can be seen from the above embodiments, the coverage area of the terminal device running out of the first beam is that the first beam can be released, thereby avoiding resource waste.

The above specific process of determining the second beam is described in the following two specific embodiments:

the first embodiment is as follows: multiple second beam scenarios

The set beam tracking scheduling mode is different-frequency multi-beam expanding covering type tracking;

when the predicted movement direction is pointed to the edge of the first beam by the terminal device, determining a second beam of a plurality of different frequencies for extending the coverage area of the first beam;

and splicing the coverage areas of the plurality of second beams with different frequencies with the coverage area of the first beam.

Specifically, the first beam is a current beam and has no tracking characteristic; the second beam is a tracking beam and will track the predicted direction of movement of the terminal device.

If the predicted movement direction is that the terminal device points to the edge of the first beam, that is, the terminal moves close to the edge of the first beam, the network device may use multi-beam splicing to ensure continuous terminal services, as shown in fig. 3.

It can be seen from the above embodiments that when the terminal device points to the edge of the first beam, multi-beam splicing can be adopted to ensure continuous terminal services, thereby ensuring communication quality.

Optionally, the method further comprises:

when the terminal device runs out of the beam coverage of the first beam and enters the coverage area of the second beam, the first beam is released, the movement direction of the terminal device in the second beam is predicted, and a plurality of different-frequency other beams are scheduled according to the prediction result of the terminal device in the second beam to be spliced with the coverage area of the second beam.

Specifically, if the terminal device operates out of the coverage of the first beam and enters the coverage of the second beam, for the second beam, multi-beam splicing may still be adopted to ensure that the terminal service is continuous, such as the multi-beam splicing tracking method shown in fig. 3. When the first beam is released, the second beam is changed to have no tracking characteristic, and other beams of a plurality of different frequencies start to track the movement direction of the terminal.

As can be seen from the foregoing embodiments, when the terminal device operates out of the coverage of the first beam and enters the coverage of the second beam, the first beam may be released, and for the second beam, multi-beam splicing may still be used to ensure continuous service of the terminal device, so that the communication quality of the terminal device is ensured, and resource waste is avoided by releasing the first beam.

The multi-beam splicing tracking method shown in fig. 3 predicts the terminal motion direction through the network device, and schedules the tracking beam to implement early coverage according to the prediction result and possibly including multiple directions, thereby ensuring the continuous terminal service. The specific implementation process comprises the following steps:

(1) The terminal equipment moves in the current wave beam, and the network equipment predicts the movement direction of the terminal equipment according to the movement state information reported by the terminal equipment.

(2) When the network equipment predicts that the terminal equipment moves close to the edge of the current beam, a plurality of pilot frequency beams are scheduled to splice the coverage range of the current beam, namely: and the network equipment schedules a plurality of wave beams to cover the adjacent areas of the wave phase of the current wave beam and splice and expand the coverage areas.

(3) When the terminal equipment runs out of the current beam range, the network equipment releases the current beam, reorganizes and schedules the beam according to the prediction of the terminal motion characteristic to implement coverage expansion, and ensures that the terminal equipment is not disconnected;

(4) And repeating the steps until the terminal movement is finished.

Example two, case of one second Beam

The set beam tracking scheduling mode is different-frequency dual-beam alternate tracking;

performing, by the processor, beam tracking in each of the one or more predicted movement directions according to the set beam tracking scheduling manner, including:

determining a third beam (i.e. a second beam) for forming an overlapping coverage area with the first beam according to the predicted movement direction, wherein a central point of the overlapping coverage area is a current position of the terminal device;

and overlapping and covering the coverage range of the first beam through the third beam.

Specifically, the first beam is a current beam and has no tracking characteristic; the third beam is an overlapping tracking beam and tracks the predicted direction of motion of the terminal device.

The network device may use dual-beam overlap tracking to ensure continuity of terminal services according to the predicted movement direction of the terminal device, such as the dual-beam overlap tracking method shown in fig. 4.

It can be seen from the above embodiments that the network device can adopt dual-beam overlay tracking to ensure the continuity of the terminal service in the predicted movement direction of the terminal device, thereby ensuring the communication quality.

Optionally, the method further comprises:

and when the terminal equipment runs out of the beam coverage range of the first beam and enters the coverage area of the third beam, predicting the motion direction of the terminal equipment in the third beam, and scheduling another beam according to the prediction result of the terminal equipment in the third beam so as to form another overlapping coverage area with the third beam.

Specifically, if the terminal device operates out of the coverage of the first beam and enters the coverage of the third beam, for the third beam, dual-beam overlapping tracking may still be used to ensure continuous terminal services, such as the dual-beam overlapping tracking method shown in fig. 4. When the first beam is released, the third beam is changed to have no tracking characteristic, and another beam forming another overlapped coverage area with the third beam starts to track the movement direction of the terminal.

It can be seen from the above embodiments that, when the terminal device operates out of the coverage of the first beam and enters the coverage of the third beam, the first beam may be released, and for the third beam, dual-beam overlapping tracking may be adopted to ensure continuous service of the terminal device, so that the communication quality of the terminal device is ensured, and resource waste is avoided by releasing the first beam.

The dual-beam overlapping tracking method as shown in fig. 4 mentioned above achieves the purpose of continuous coverage by highly overlapping the current beam and another tracking beam in the coverage area to cope with the rapid uncertain motion of the terminal.

The overlapping mode of the tracking beam and the current beam is as follows: and tracking the overlapping of the central point of the beam and the reference by taking the closest point of the terminal to the edge of the current beam as the reference.

The specific implementation process comprises the following steps:

(2) The network device schedules another independent beam to form an overlapping coverage with the current beam, which is called an overlapping beam, and the overlapping area is centered on the terminal position.

(3) When the terminal device completely leaves the coverage of the current beam and enters the coverage of the overlapping beam, the network device releases the current beam, schedules a new beam and the overlapping beam to form a new overlapping coverage area, and similarly, the new overlapping coverage area still takes the position of the terminal as the center.

(4) And repeating the steps until the terminal finishes moving.

Specifically, the first beam is the current beam. The network device can adopt single beam tracking to ensure the continuous service of the terminal according to the predicted movement direction of the terminal device. The single beam tracking is a capability of the network device, the single beam tracking is a special case of the multi-beam tracking, and only 1 beam of a satellite (for example, the satellite may be an LEO satellite, an MEO satellite, or a GEO satellite) in the scene may serve a terminal moving at a high speed.

It can be seen from the above embodiments that the network device can adopt single beam tracking to ensure the continuity of the terminal service by predicting the movement direction of the terminal device, thereby ensuring the communication quality.

Optionally, said adjusting the azimuth of the first beam according to the predicted movement direction comprises:

Specifically, the set angle value may be a fixed value configured in advance; or an angle value configured according to actual conditions. Such as: the angle value is set to theta/2, where theta represents a half-wave beam angle for a conical beam.

It can be seen from the above embodiments that the center point of the first beam is adjusted only when the deviation between the current position of the terminal device and the center point of the first beam is greater than the set angle value, so that the communication quality of the terminal device is ensured and the waste of resources can be avoided.

The single beam tracking method mentioned above provides services for a terminal moving at a high speed through 1 beam. The specific implementation process comprises the following steps:

(1) The terminal equipment accesses the network and periodically reports the motion state information.

(2) And the network equipment calculates and predicts the next movement direction of the terminal equipment according to the ephemeris, the terminal position, the movement and other information.

(3) When the deviation between the position of the terminal and the position of the center point of the current beam is larger than theta/2 (for the conical beam, theta represents a half-wave beam included angle), the network equipment adjusts the position of the current beam, the center of the beam is aligned with the position of the terminal, and tracking coverage of the terminal equipment is realized.

Optionally, the network device supports a dual connectivity function of the terminal device.

Specifically, in order to increase the reliability of the service of the terminal device in the network, the terminal device may have a dual connection function, and correspondingly, the network device may also support the terminal device dual connection function.

It can be seen from the above embodiments that the terminal device may have a dual connection function, and the network device may also support the dual connection function of the terminal device, which is helpful for the uninterrupted terminal service and improves the communication quality.

Optionally, the dual connection function is independent data stream dual connection;

a first connection and a second connection in the independent data stream dual connection work in different frequency bands, the first connection and the second connection belong to two different Radio Resource Control (RRC) connections, data transmitted by the first connection and the second connection are the same data, and the priority of the first connection and the priority of the second connection are equal;

the method further comprises the following steps:

if the transmission data of the first connection and the transmission data of the second connection are received, comparing the transmission data of the first connection with the transmission data of the second connection to obtain a first comparison result;

if the first comparison result is that the transmission data of the first connection is the same as the transmission data of the second connection, selecting the transmission data of the first connection or the transmission data of the second connection;

if the first comparison result is that the transmission data of the first connection and the transmission data of the second connection are different, performing Cyclic Redundancy Check (CRC) on the transmission data of the first connection and the transmission data of the second connection to obtain a CRC result;

if the CRC check result comprises the transmission data which is successfully checked, selecting the transmission data which is successfully checked;

and if the CRC result does not comprise the transmission data successfully checked by the CRC, respectively initiating retransmission to the first connection and the second connection.

Specifically, the first connection and the second connection are independent data stream dual connections, the two connections work in different frequency bands, two different RRC connections are established, an uplink and a downlink transmit two identical data, and the priority of the two connections is equal; the network equipment receives the two connected data and compares the two connected data, and when the two connected data are the same, one data is selected as input; when the data is different, correct CRC data is selected as input, and when the CRC checks are incorrect, the two connections respectively initiate retransmission.

It can be seen from the above embodiments that the network device can also support the independent data stream dual connection function of the terminal device, which is helpful for the uninterrupted terminal service and improves the communication quality.

Optionally, the dual connectivity function is non-independent data stream dual connectivity;

a third connection and a fourth connection in the non-independent data stream dual connection work in different frequency bands, the third connection and the fourth connection belong to the same RRC connection, the priority of the third connection and the priority of the fourth connection are the same, and data transmitted by the third connection and the fourth connection are different versions of the same data;

the method further comprises the following steps:

and if the transmission data of the third connection and the transmission data of the fourth connection are received, merging and encoding the transmission data of the third connection and the transmission data of the fourth connection to obtain the merged and encoded transmission data.

Specifically, the third connection and the fourth connection are non-independent data stream dual connections, the two connections work in different frequency bands, and belong to 1 RRC connection, the priority is the same, the data transmitted by the two connections are different redundancy versions, and the redundancy versions may be redundancy versions after channel coding or Hybrid Automatic Repeat reQuest (HARQ) codebooks. The network device can perform merging decoding after receiving different data of the two connections, so that the decoding reliability can be increased.

It can be seen from the above embodiments that the network device can also support the dependent data stream dual connection function of the terminal device, which is helpful for the uninterrupted terminal service and improves the communication quality.

Fig. 5 is a second flowchart of a beam tracking method provided in an embodiment of the present application, where the beam tracking method may be used for a terminal device. As shown in fig. 5, the beam tracking method may include the steps of:

step 501, determining motion state information of the terminal device in a first beam, where the first beam is a beam currently covering the terminal device.

After the terminal equipment is accessed to the network, the motion state information can be reported periodically, so that the network equipment can predict the next motion direction of the terminal according to the motion state information of the terminal, calculate a beam tracking mode based on the position of the terminal in the current beam, schedule or adjust the beam to implement continuous coverage in the next motion direction of the terminal, and ensure that the terminal service is not interrupted.

Step 502, the motion state information is sent to the network device.

It can be seen from the above embodiments that, by determining the motion state information of the terminal device in the first beam, where the first beam currently covers the terminal device, and sending the motion state information of the terminal device to the network device, the network device can predict the motion direction of the terminal device in the first beam according to the motion state information to obtain a prediction result, and perform beam tracking in each predicted motion direction of one or more predicted motion directions according to a set beam tracking scheduling manner, thereby avoiding a situation where a beam cannot cover the terminal in time to cause interruption of terminal service, implementing continuous and uninterrupted service for a high-speed terminal, and improving communication quality.

Optionally, the motion state information includes one or more of:

longitude and latitude elevation information of the terminal equipment;

speed information of the terminal equipment in different directions;

It can be seen from the above embodiments that when the terminal device reports the motion state information, the terminal device may report latitude and longitude elevation information, speed information, or position information, so that the network device may predict the next motion direction of the terminal device according to the information, which is helpful to improve the accuracy of beam tracking.

Optionally, the sending the motion state information to the network device includes:

determining the reporting period of the motion state information;

Specifically, the reporting period may be a period value determined in actual conditions.

It can be seen from the above embodiments that, when the terminal device reports the motion state information, the motion state information can be sent to the network device according to a certain reporting period, so that the terminal device can obtain the motion state information of the terminal device in time, which is helpful for improving the beam tracking efficiency.

Optionally, the determining the reporting period of the motion state information includes:

T<R/(|Vu+Vs|×N)

Specifically, the unit of R is km; the unit of Vu is km/s; the unit of Vs is km/s; t has the unit s. The value of N is in direct proportion to Vu, and the higher the speed of the terminal equipment is, the more intensive the actions needing to be reported are, so as to better realize beam tracking. The minimum value of N is preferably 10.

It can be seen from the above embodiments that the reporting period can be adjusted according to the running speed of the terminal device, thereby improving the reliability of beam tracking.

Optionally, the terminal device has a dual connection function.

In order to increase the reliability of the service of the terminal device in the network, the terminal device may have a dual connection function.

The embodiment shows that the terminal equipment can have the function of double connection, so that the terminal service is not interrupted, and the communication quality is improved.

the method further comprises the following steps:

if the first comparison result is that the transmission data of the first connection is different from the transmission data of the second connection, performing Cyclic Redundancy Check (CRC) on the transmission data of the first connection and the transmission data of the second connection to obtain a CRC result;

Specifically, the first connection and the second connection are independent data stream dual connections, the two connections work in different frequency bands, two different RRC connections are established, the uplink and downlink transmit two identical data, and the priority of the two connections is equal; the terminal equipment receives the two connected data and then compares the two connected data, and when the two connected data are the same, one data is selected as input; when the data is different, the correct CRC data is selected as input, and when the CRC checks are not correct, the two connections respectively initiate retransmission.

It can be seen from the above embodiments that the terminal device can also support the independent data stream dual connection function of the terminal device, which is helpful for the uninterrupted terminal service and improves the communication quality.

the method further comprises the following steps:

Specifically, the third connection and the fourth connection are non-independent data stream dual connections, the two connections work in different frequency bands, belong to 1 RRC connection, have the same priority, and transmit data in different redundancy versions, which may be redundancy versions after channel coding or HARQ codebooks. The terminal equipment can perform merging decoding after receiving the different data of the two connections, so that the reliability of decoding can be improved.

It can be seen from the above embodiments that the terminal device can also support the dependent data stream dual connection function of the terminal device, which is helpful for the uninterrupted terminal service and improves the communication quality.

Correspondingly, when the terminal equipment is switched between the dual connection, the connection in the current beam can be disconnected firstly, then the terminal equipment establishes a new connection in a new tracking beam, and the terminal is always kept to have at least 1 connection for providing services.

The implementation of the beam tracking method is illustrated by two embodiments.

In the first embodiment, as shown in fig. 6:

(1) After the terminal equipment accesses the network, the position or the motion parameter is reported periodically.

(2) The terminal equipment has the pilot frequency double-connection function, can be simultaneously connected with 2 or more different beams, has the function of measuring target beams in advance, and can quickly realize beam switching when the pilot frequency beams are at the edge.

Example two, as shown in fig. 7:

(1) And the network equipment receives the information such as the position and the like periodically reported by the terminal equipment.

(2) And the network equipment predicts the next possible movement direction of the terminal according to the terminal position, the beam direction, the satellite ephemeris and other information.

(3) The network device calculates the time when the next beam performs tracking (i.e. the time when the beam is scheduled or adjusted) according to the position of the terminal device in the current beam.

(4) The network device schedules or adjusts the beam to be deployed in the next movement direction of the terminal device in advance, and provides beam tracking and covering services for the terminal device (namely the network device schedules the beam for the terminal device to cover the next possible movement direction of the terminal device in advance).

It can be seen from the above embodiments that, for a high-speed moving terminal, a network device schedules or adjusts a beam hopping resource tracking service terminal device in a terminal reporting mode, a network predicting mode, and the like, thereby realizing continuous and uninterrupted service for the high-speed terminal.

Fig. 8 is a schematic structural diagram of a beam tracking apparatus according to an embodiment of the present application, where the beam tracking apparatus may be used in the beam tracking method shown in fig. 2; as shown in fig. 8, the beam tracking apparatus may include:

a receiving unit 81, configured to receive motion state information sent by a terminal device;

a predicting unit 82, configured to predict, according to the motion state information, a motion direction of the terminal device in a first beam to obtain a prediction result, where the prediction result includes one or more predicted motion directions, and the first beam is a beam currently covering the terminal device;

a beam tracking unit 83, configured to perform beam tracking in each of the one or more predicted motion directions according to a set beam tracking scheduling manner.

Further, based on the above device, the motion state information includes one or more of the following items:

longitude and latitude elevation information of the terminal equipment;

speed information of the terminal equipment in different directions;

Further, based on the above apparatus, the prediction unit 82 includes:

a first determining subunit, configured to determine, according to the motion state information, a current position of the terminal device in the first beam;

and the predicting subunit is used for predicting the movement direction of the terminal equipment in the first beam according to one or more historical positions of the terminal equipment in the first beam and the current position.

Further, based on the above apparatus, the set beam tracking scheduling manner includes one or more of the following:

different-frequency multi-beam expansion coverage tracking;

alternate tracking of different-frequency dual beams;

the single beam continues tracking.

Further, based on the above apparatus, the beam tracking unit 83 includes:

a second determining subunit, configured to determine, according to the predicted movement direction, a second beam for tracking and covering the terminal device;

and the tracking subunit is used for tracking and covering the terminal equipment through the second beam.

Further, based on the above apparatus, a central point of an overlapping coverage area formed by the second beam and the first beam is a current location of the terminal device.

Further, based on the above apparatus, the beam tracking unit 83 includes:

a third determining subunit, configured to determine whether the terminal device operates out of the coverage of the first beam according to the signal strength of the first beam and the link quality of communication with the first beam;

and the releasing subunit is configured to release the first beam when it is determined that the terminal device operates out of the coverage of the first beam.

Further, based on the above apparatus, the beam tracking unit 83 includes:

and the adjusting subunit is configured to adjust the orientation of the first beam according to the predicted movement direction, and a center point of the adjusted first beam is a current position of the terminal device.

Further, based on the above apparatus, the adjusting subunit is specifically configured to:

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application 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 integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

It should be noted that the apparatus provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment on the network device side, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated here.

Fig. 9 is a second schematic structural diagram of a beam tracking apparatus according to an embodiment of the present application, where the beam tracking apparatus can be used in the beam tracking method shown in fig. 5; as shown in fig. 9, the beam tracking apparatus may include:

a determining unit 91, configured to determine motion state information of a terminal device in a first beam, where the first beam is a beam currently covering the terminal device;

a sending unit 92, configured to send the motion state information to a network device.

longitude and latitude elevation information of the terminal equipment;

speed information of the terminal equipment in different directions;

Further, based on the above apparatus, the sending unit 92 includes:

a reporting period determining subunit, configured to determine a reporting period of the motion state information;

and the sending subunit is configured to send the motion state information to the network device according to the reporting period.

Further, based on the apparatus, the reporting period determination subunit is specifically configured to:

T<R/(|Vu+Vs|×N)

Further, based on the above device, the terminal device has a dual connection function.

It should be noted that, in the embodiment of the present application, the division of the unit is schematic, and is only one logic function division, and when the actual implementation is realized, another division manner may be provided. In addition, functional units in the embodiments of the present application 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 integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

It should be noted that the apparatus provided in this embodiment of the present application can implement all the method steps implemented by the method embodiment on the network device side, and can achieve the same technical effect, and details of the same parts and beneficial effects as those of the method embodiment in this embodiment are not described herein again.

Fig. 10 is a schematic structural diagram of a network device provided in an embodiment of the present application; the network device may be configured to perform the beam tracking method shown in fig. 2. As shown in fig. 10, a transceiver 1000 for receiving and transmitting data under the control of a processor 1010.

Where in fig. 10, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1010 and various circuits of memory represented by memory 1020 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1000 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. The processor 1010 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1010 in performing operations.

The processor 1010 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a complex 6 Programmable Logic Device (CPLD), and may also have a multi-core architecture.

Fig. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device may be configured to perform the beam tracking method shown in fig. 5. As shown in fig. 11, a transceiver 1100 for receiving and transmitting data under the control of a processor 1110. Where, in fig. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 1110, and various circuits, represented by the memory 1120, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. Transceiver 1100 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, the user interface 1130 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1110 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1110 in performing operations.

Alternatively, the processor 1110 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and may also adopt a multi-core architecture.

The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory may also be physically separated.

On the other hand, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to cause the processor to execute the method provided in each of the above embodiments, and the method includes:

receiving motion state information sent by terminal equipment;

The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid State Disks (SSDs)), etc.

On the other hand, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to enable the processor to execute the method provided by each of the foregoing embodiments, and the method includes:

and sending the motion state information to network equipment.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid State Disks (SSDs)), etc.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method of beam tracking, comprising:

receiving motion state information sent by terminal equipment;

2. The beam tracking method of claim 1, wherein the motion state information comprises one or more of:

longitude and latitude elevation information of the terminal equipment;

speed information of the terminal equipment in different directions;

3. The beam tracking method according to claim 1 or 2, wherein the predicting the motion direction of the terminal device in the first beam according to the motion state information comprises:

4. The method according to claim 1, wherein the performing beam tracking in each of the one or more predicted motion directions according to the set beam tracking scheduling pattern comprises:

and tracking and covering the terminal equipment through the second wave beam.

5. The beam tracking method of claim 4, wherein a center point of an overlapping coverage area formed by the second beam and the first beam is a current location of the terminal device.

6. The beam tracking method of claim 4 or 5, further comprising:

7. The method according to claim 1, wherein the performing beam tracking in each of the one or more predicted motion directions according to the set beam tracking scheduling pattern comprises:

8. The method of claim 7, wherein said adjusting the orientation of the first beam based on the predicted direction of motion comprises:

9. A method of beam tracking, comprising:

and sending the motion state information to network equipment.

10. The beam tracking method of claim 9, wherein the motion state information comprises one or more of:

longitude and latitude elevation information of the terminal equipment;

speed information of the terminal equipment in different directions;

11. The beam tracking method according to claim 9 or 10, wherein the transmitting the motion state information to the network device comprises:

determining the reporting period of the motion state information;

12. The beam tracking method of claim 11, wherein the determining the reporting period of the motion state information comprises:

T<R/(|Vu+Vs|×N)

13. A network device comprising a memory, a transceiver, a processor:

a memory for storing a computer program; a transceiver for transceiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations:

receiving motion state information sent by terminal equipment;

14. The network device of claim 13, wherein the motion state information comprises one or more of:

longitude and latitude elevation information of the terminal equipment;

speed information of the terminal equipment in different directions;

15. The network device according to claim 13 or 14, wherein the predicting the motion direction of the terminal device in the first beam according to the motion state information comprises:

16. The network device of claim 13, wherein performing beam tracking in each of the one or more predicted movement directions according to the set beam tracking scheduling pattern comprises:

and tracking and covering the terminal equipment through the second wave beam.

17. The network device of claim 16, wherein a center point of an overlapping coverage area formed by the second beam and the first beam is a current location of the terminal device.

18. The network device of claim 16 or 17, further comprising:

19. The network device of claim 13, wherein performing beam tracking in each of the one or more predicted movement directions according to the set beam tracking scheduling pattern comprises:

20. The network device of claim 19, wherein the adjusting the orientation of the first beam based on the predicted direction of motion comprises:

21. A terminal device, comprising a memory, a transceiver, a processor:

and sending the motion state information to network equipment.

22. The terminal device of claim 21, wherein the motion state information comprises one or more of:

longitude and latitude elevation information of the terminal equipment;

speed information of the terminal equipment in different directions;

23. The terminal device according to claim 21 or 22, wherein said sending the motion state information to the network device comprises:

determining the reporting period of the motion state information;

24. The terminal device of claim 23, wherein the determining the reporting period of the motion state information comprises:

T<R/(|Vu+Vs|×N)

25. A beam tracking apparatus, comprising:

26. A beam tracking apparatus, comprising:

27. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing a processor to perform the method of any one of claims 1 to 8.

28. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing a processor to perform the method of any of claims 9 to 12.