WO2021253400A1

WO2021253400A1 - Beam processing method, device and system, and storage medium

Info

Publication number: WO2021253400A1
Application number: PCT/CN2020/097099
Authority: WO
Inventors: 杜冬阳
Original assignee: 深圳传音控股股份有限公司
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-12-23
Also published as: CN115699604A

Abstract

The embodiments of the present application provide a beam processing method, device and system, and a storage medium. The method comprises: acquiring spatial information of a plurality of beams; and determining a transmit beam of a network device and/or a receive beam of a terminal device according to the spatial information of the plurality of beams. According to the solution provided by the embodiments of the present application, since the transmit beam of the network device and/or the receive beam of the terminal device are determined according to the spatial information of the plurality of beams, the number of beams needing to be measured and beam measurement information needing to be fed back during beam measurement are reduced, thereby decreasing signaling overhead and reducing switching delay during beam switching.

Description

Beam processing method, equipment, system and storage medium

Technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to a beam processing method, device, system, and storage medium.

Background technique

In 5G New Radio (NR), the application of beam-based large-scale antenna arrays enables the system to form one or more beams with strong directivity, which can increase the coverage area of the system while also Reduce interference.

In a high-frequency system, if beam coverage is to be ensured, a beam with a narrow width needs to be formed. At this time, if the terminal moves, the beam switching process will be triggered frequently, occupying system resources and overhead. It is necessary to design a scheme for beam emission in a high-frequency system to solve this problem.

In addition, in large-scale antenna arrays, beam management is indispensable. Through beam management, the system can find and maintain the best beam direction to ensure system performance. One way of beam management is that the terminal equipment monitors the relevant information of multiple beams and feeds back one or more good beams to the base station. The base station adjusts the transmission beam according to the feedback of the terminal equipment, and the terminal equipment adjusts its own receiving beam according to the transmission beam. , So as to find the connecting beam of the best beam.

The problem with this solution is that the separate adjustment of the transmit beam and the receive beam will greatly affect the adjustment delay.

The foregoing description is to provide general background information and does not necessarily constitute prior art.

Summary of the invention

The embodiments of the present application provide a beam processing method, device, system, and storage medium to solve the problem that the separated adjustment of the beam in the current beam switching will affect the adjustment delay.

In the first aspect, an embodiment of the present application provides a beam processing method, which is applied to a network device, and the method includes:

Obtain spatial information of multiple beams;

Determine the transmit beam of the network device according to the spatial information of the multiple beams.

In a possible implementation manner, the spatial information is used to indicate the arrangement relationship of each beam in the spatial position or coverage direction, where:

For any beam, the arrangement relationship is used to determine a beam adjacent to the any beam in a spatial position or a coverage direction.

In a possible implementation manner, the transmit beams of the network device are multiple transmit beams that are adjacent in a spatial position or a coverage direction obtained according to the spatial information.

In the second aspect, an embodiment of the present application provides a beam processing method, which is applied to a network device, and the method includes:

Acquiring first transmit beam information, where the first transmit beam is an initial transmit beam or a currently connected beam;

According to the first transmission beam information, a transmission beam set is determined.

In a possible implementation manner, the initial transmission beam and/or the currently connected beam are determined according to a measurement result of the beam.

In a possible implementation manner, the measured parameter includes at least one of the following:

Reference Signal Receiving Power (RSRP for short);

Interference plus Noise Ratio (Signal to Interference plus Noise Ratio, SINR for short).

In a possible implementation manner, any transmission beam in the transmission beam set is a transmission beam adjacent to the first transmission beam.

In a possible implementation manner, the transmit beam adjacent to the first transmit beam is:

The beam direction and the beam direction of the first transmit beam are transmitted beams whose included angle in space is less than or equal to a preset angle; or,

The beam coverage and the beam coverage of the first transmit beam are transmit beams whose spatial distance is less than or equal to a preset distance.

In a possible implementation manner, the transmit beam set includes at least one second transmit beam other than the first transmit beam.

In a possible implementation manner, the second transmit beam is determined by the predicted position of the terminal device at the next time.

In a possible implementation manner, the method for acquiring the predicted position of the terminal device at the next time is one of the following methods:

Obtained through machine learning;

Obtained by Kalman filter;

Obtained from the motion trajectory reported by the terminal device.

In a possible implementation manner, the method further includes:

Send downlink data to the terminal device through a single or multiple transmit beams in the set of transmit beams.

In a third aspect, an embodiment of the present application provides a beam processing method, which is applied to a terminal device, and the method includes:

Obtain spatial information of multiple beams;

Determine the receiving beam of the terminal device according to the spatial information of the multiple beams.

In a fourth aspect, an embodiment of the present application provides a beam processing method, which is applied to a terminal device, and includes:

Acquiring first transmit beam information, where the first transmit beam is the initial transmit beam of the network device, or the currently connected beam of the network device;

Send the first transmit beam information to the network device, where the first transmit beam information is used to determine a set of transmit beams.

Reference signal received power, interference plus noise ratio.

The beam direction and the beam direction of the first transmit beam are transmitted beams whose included angle in space is less than or equal to a preset angle; and/or,

The beam coverage and the beam coverage of the first transmit beam are transmit beams whose spatial distance is less than or equal to the preset distance.

Obtained through machine learning;

Obtained by Kalman filter;

Obtained from the motion trajectory reported by the terminal device.

In a possible implementation manner, the method further includes:

Receive the downlink data sent by the network device through a single or multiple beams in the transmit beam set.

In a fifth aspect, an embodiment of the present application provides a communication device, including: a processor and a memory;

The memory stores computer execution instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor executes the beam processing method according to any one of the first aspect to the fourth aspect.

In a sixth aspect, an embodiment of the present application provides a communication system, including:

A network device for implementing any one of the first aspect or the second aspect; and,

Used to implement a terminal device as in any one of the third aspect or the fourth aspect.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium having computer-executable instructions stored in the computer-readable storage medium. When the computer-executable instructions are executed by a processor, they are used to implement aspects as described in the first aspect to The beam processing method according to any one of the fourth aspect.

The beam adjustment method and device provided in the embodiments of this application first acquire spatial information of multiple beams, and then determine the transmit beam of the network device and/or the receive beam of the terminal device according to the spatial information of the multiple beams, thereby reducing the measurement in the beam. The number of beams that need to be measured and the beam measurement information that needs to be fed back can reduce the signaling overhead and the switching delay during beam switching.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a schematic diagram of an application scenario provided by an embodiment of the application;

Figure 2 is a schematic diagram of beam coverage provided by an embodiment of the application;

FIG. 3 is a schematic flowchart of a beam processing method provided by an embodiment of the application;

Figure 4 is a schematic diagram of spatial information provided by an embodiment of this application;

FIG. 5 is a schematic flowchart of a beam processing method provided by an embodiment of the application;

Fig. 6 is a schematic diagram of a transmit beam provided by an embodiment of the application;

FIG. 7 is a schematic diagram of beam pointing of a beam provided by an embodiment of the application;

FIG. 8 is a schematic diagram of beam coverage of a beam provided by an embodiment of this application;

FIG. 9 is a schematic flowchart of a beam processing method provided by an embodiment of the application;

FIG. 10 is a first schematic diagram of a beam processing apparatus provided by an embodiment of the application;

FIG. 11 is a second schematic diagram of a beam processing apparatus provided by an embodiment of this application;

FIG. 12 is a third schematic diagram of a beam processing apparatus provided by an embodiment of this application;

FIG. 13 is a fourth schematic diagram of a beam processing apparatus provided by an embodiment of the application;

FIG. 14 is a schematic diagram of the hardware structure of a communication device provided by an embodiment of the application.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described embodiments These are a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

First, explain the concepts involved in this application.

Terminal equipment: usually has a wireless transceiver function, terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons, etc.) And satellite class). The terminal equipment may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial Wireless terminals in industrial control, in-vehicle terminal equipment, wireless terminals in self-driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, Wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, wearable terminal equipment, etc. The terminal equipment involved in the embodiments of the present application may also be referred to as a terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station , Remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. The terminal device can also be fixed or mobile.

Network equipment: usually has a wireless transceiver function, the network equipment may have mobile characteristics, for example, the network equipment may be a mobile device. Optionally, the network equipment can be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, or a high elliptical orbit (High Elliptical Orbit, HEO). ) Satellite etc. For example, the LEO satellite's orbital height range is usually 500km to 1500km, and the orbital period (the period of rotation around the earth) is about 1.5 hours to 2 hours. The signal propagation delay of single-hop communication between users is about 20ms. The single-hop communication delay between users refers to the transmission delay between the terminal device and the network device, or the delay between the network device and the transmission device. The maximum visible time of the satellite is about 20 minutes. The maximum visible time refers to the longest time that the beam of the satellite covers a certain area of the ground. LEO satellites are mobile relative to the ground. As the satellite moves, the ground area covered by it is also Changing. The signal propagation distance of the LEO satellite is short, the link loss is small, and the requirement for the transmission power of the terminal equipment is not high. The orbital height of GEO satellites is usually 35786km, and the orbital period is 24 hours. The signal propagation delay of single-hop communication between users is about 250ms. In order to ensure satellite coverage and increase the system capacity of the communication network, satellites can use multiple beams to cover the ground. For example, a satellite can form dozens or hundreds of beams to cover the ground, and one beam can cover dozens to hundreds of kilometers in diameter. Ground area. Of course, the network equipment can also be a base station set up in land, water, etc. For example, the network equipment can be a next generation NodeB (gNB) or a next generation-evolved NodeB (ng-eNB) . Among them, gNB provides UE with new radio (NR) user plane functions and control plane functions, and ng-eNB provides UE with evolved universal terrestrial radio access (E-UTRA) user plane Functions and control plane functions. It should be noted that gNB and ng-eNB are only a name used to indicate a base station supporting a 5G network system, and do not have a restrictive meaning. The network equipment can also be a base transceiver station (BTS) in a GSM system or a CDMA system, a base station (nodeB, NB) in a WCDMA system, or an evolutional node B (evolutional node B) in an LTE system. eNB or eNodeB). Alternatively, the network equipment may also be relay stations, access points, in-vehicle equipment, wearable equipment, and network side equipment in the network after 5G or network equipment in the future evolved PLMN network, road site unit (RSU) )Wait.

Beam: Refers to the shape of the electromagnetic wave emitted by the satellite antenna on the surface of the earth, including global beam, spot beam, shaped beam, etc. The shape of the beam is determined by the satellite antenna.

First, an applicable application scenario of this application is introduced.

Fig. 1 is a schematic diagram of an application scenario provided by an embodiment of the application. Please refer to FIG. 1, which includes a network device 101 and a terminal device 102. The network device 101 and the terminal device 102 can perform wireless communication and perform data transmission.

Among them, the network including the network device 101 and the terminal device 102 can also be called a non-terrestrial communication network (Non-Terrestrial Network, NTN), where NTN refers to the communication between the terminal device and the satellite (also called the network device) The internet.

It is understandable that the technical solutions of the embodiments of this application can be applied to New Radio (NR) communication technology. NR refers to a new generation of wireless access network technology, which can be applied to future evolution networks, such as the fifth generation in the future. In the mobile communication (the 5th Generation Mobile Communication, 5G) system. The solutions in the embodiments of this application can also be applied to other wireless communication networks such as Wireless Fidelity (WIFI) and Long Term Evolution (LTE), and the corresponding names can also be used in other wireless communication networks. The name of the function is substituted.

The network architecture and business scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation to the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that with the network With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

In 5G communications, the application of beam-based large-scale antenna arrays has been realized. By increasing the number of physical antennas, the system can form one or more beams with strong directivity. FIG. 2 is a schematic diagram of beam coverage provided by an embodiment of this application. As shown in FIG. 2, it includes a network device 21 and a terminal device 22. The network device 21 forms beam coverage through multiple beams, such as beam 1, beam 2, and beam 3 as shown in FIG. 2. By forming one or more beams with strong directivity, interference can be reduced while increasing the coverage area of the system.

In large-scale antenna array communication, beam management is essential. Through beam management, the system can find and maintain the best beam direction of the system to ensure the performance of the entire system.

In the current beam management, the terminal device first detects related parameters, and then according to the detected related parameters, feeds back one or more better beams to the network device, where the related parameters detected by the terminal device may be, for example, the reference signal received power , Interference plus noise ratio, etc. After the terminal device feeds back one or more better beams to the network device, the network device adjusts the transmit beam according to the feedback of the terminal device. After the network device determines the transmitting beam, the terminal device adjusts its own receiving beam according to the transmitting beam of the network device, so as to find the connecting beam of the best beam.

The main problem with the above beam management method is that, first, because the beam energy is more concentrated in a high-frequency scene, the beam coverage is narrower. When the location of the terminal device changes, the terminal device may be outside the original beam coverage, and the UE may need to switch beams quickly and frequently. For example, in the example of FIG. 2, the terminal device 22 is initially at the A position, and the terminal device 22 is in the coverage area of the beam 1 at this time. When the position of the terminal device 22 moves, for example, after moving from the position A to the position B, the terminal device 22 is not within the coverage area of the beam 1 at this time, and communication with the network device 21 cannot be achieved through the beam 1. When the terminal device 22 moves to the B position, it is in the coverage area of the beam 2, so it needs to be switched to the beam 2. In practice, the location of the terminal device may change at any time. In a high-frequency scenario, the coverage area of the beam is narrower, and the frequent switching of the beam caused by it will be more obvious.

Secondly, in the above beam management method, the transmit beam of the network device and the receive beam of the terminal device are adjusted separately, that is, the network device first adjusts the transmit beam according to the feedback of the terminal device, and then the terminal device adjusts according to the network device. To adjust its own receiving beam. This separate adjustment strategy of transmitting and receiving beams will greatly affect the adjustment delay, especially when the terminal device needs to switch beams quickly and frequently, the adjustment delay will have a greater impact on communication.

Finally, in high-frequency scenarios, electromagnetic waves are more easily absorbed by the atmosphere due to the increase in frequency, so more physical antennas must be used for communication services. When the number of antennas increases, the size of the antenna becomes smaller, and the coverage of the formed beam is narrower. In this case, more frequent beam adjustments are also brought about, which increases the signaling overhead of the system.

In order to solve the above problems, this application provides a beam management solution. On the one hand, the transmission beam of the network device and the receiving beam of the terminal device are quickly adjusted through spatial information of multiple beams, and the adjustment delay is reduced. On the other hand, The transmission of downlink data is realized by determining multiple beams as the transmitting beams of the network device, so as to avoid frequent switching of beams. The solution of the present application will be described below in conjunction with the drawings.

FIG. 3 is a schematic flowchart of a beam processing method provided by an embodiment of the application. As shown in FIG. 3, the method may include:

S31. Acquire spatial information of multiple beams.

Due to high-frequency radio characteristics, most of them are line of sight (LOS) connections at this time. Therefore, terminal devices and network devices can roughly perceive each other's position in space through the beam direction to achieve rapid pairing.

Both terminal equipment and network equipment can obtain the spatial information of multiple beams. The terminal equipment can obtain the approximate position of the network equipment in space through the spatial information of multiple beams, and the network equipment can obtain the terminal equipment’s location in space through the spatial information of multiple beams. The approximate orientation of the inside.

S32: Determine the transmit beam of the network device and/or the receive beam of the terminal device according to the spatial information of the multiple beams.

In the embodiment of the present application, after the spatial information of multiple beams is determined, the transmit beams of the network equipment and/or the receive beams of the terminal equipment can be determined according to the spatial information of the multiple beams to form the best connection beam without Perform separate adjustments.

The beam adjustment method provided by the embodiment of the present application first obtains the spatial information of multiple beams, and then determines the transmit beam of the network device and the receive beam of the terminal device according to the spatial information of the multiple beams, and realizes one-step adjustment of the beam without the need to perform The separate adjustment of the transmitting beam and the receiving beam can reduce the adjustment delay of the beam.

Specifically, the terminal equipment and the network equipment may have different weights on the codebook or antennas. Multiple antennas form a beam, pointing in one direction, so that multiple codebooks or weights on the antennas form spatial information of multiple beams to indicate The arrangement relationship of each beam in space position or coverage direction. FIG. 4 is a schematic diagram of spatial information provided by an embodiment of this application. As shown in FIG. 4, the spatial information of multiple beams can be represented in a table-like manner. According to the codebook of each beam, each beam is mapped to the space.

For example, in Fig. 4, a table is set, and 9 beams are shown in the table, which can be formed by cb1, cb2, cb3, cb4, cb5, cb6, cb7, cb8, and cb9, respectively. In Figure 4, cb represents a code book, where it can indicate a directional beam, each cb corresponds to a beam, and the adjacent cb indicates that the corresponding beam is in the spatial position or coverage direction. Neighboring.

Through the arrangement relationship shown in the above table, the adjacent beams of any beam can be quickly obtained, so as to serve as a reference for the network device to select the transmission beam. For example, in Figure 4, if cb1 is determined to be a better beam based on the feedback of the terminal device, the network device can add cb2, cb3, cb4, cb5, cb6, cb7, cb8, and cb1 adjacent to cb1 according to the above arrangement relationship. cb9 is used as the transmitting beam of network equipment. Of course, the network device can use all the beams adjacent to cb1 in the above table (cb2, cb3, cb4, cb5, cb6, cb7, cb8, and cb9) as the transmission beam of the network device, or part of the beams (such as cb5, cb4, cb3, and cb6) are used as the transmit beams of the network equipment, which are not particularly limited in the embodiment of the present application.

It should be noted that the table illustrated in FIG. 4 is only an expression of spatial information, and does not mean that the spatial information is the table illustrated in FIG. 4. In Fig. 4, there is a relationship of adjacent beams, which corresponds to the beams. The adjacent relationship of the beams refers to the adjacent relationship between the two beams in the spatial position or the coverage direction. For example, when the distance between the coverage positions of two beams on the ground is within a certain range, it can be considered that the two beams are adjacent in space, and the angle between the coverage directions of the two beams is within a certain angle. , It can be considered that the two beams are adjacent in the coverage direction, and so on.

Optionally, in this embodiment of the present application, the spatial information of multiple beams acquired by the terminal device and the network device is used to indicate the arrangement relationship of each beam in the spatial position or coverage direction. According to this arrangement relationship, it can be quickly Obtain the adjacent beams of any beam in the spatial position or coverage direction, so that the network device can determine the transmission beam of the network device according to the arrangement relationship of each beam in the spatial position or coverage direction indicated by the spatial information, and make the terminal device The receiving beam can be determined quickly. The table illustrated in FIG. 4 shows the arrangement relationship, which is an example, as long as the arrangement relationship of the beams in the spatial position or coverage direction can be obtained according to the spatial information.

The separate adjustment of the beam includes the two processes of transmitting beam selection and receiving beam selection to adjust the beam pairing, and the time delay is relatively large. In the solution of this application, the pairing of beams can be completed in only one step. Specifically, assuming that the terminal device is currently in the coverage of the beam cb1, the terminal device performs rapid measurement of possible codebook directions around the current beam, and assumes that there are R possible codebook directions around the current beam. The terminal device itself simultaneously monitors all the receiving beams around the receiving beam space at this time. If it is L, the terminal device needs to monitor R*L beam pairings at this time. At the same time, the terminal equipment can also perform routine monitoring on the beams at other locations or not.

Through the above method, the codebook around the current beam is actually traversal monitoring, which can make the beam adjustment complete in one step. The terminal device finds the current best beam pairing after monitoring R*L beam pairings. The current best beam pairing includes the best receiving beam and the best transmitting beam. The terminal device only needs to feed back the best transmitting beam to The network device and the terminal device may use the best receiving beam at this time as the adjusted receiving beam. The network device can use the best transmission beam fed back by the terminal device as the adjusted transmission beam, or it can determine multiple adjacent transmission beams in the spatial position or coverage direction according to the best transmission beam fed back by the terminal device. Multiple transmit beams are collectively used as the transmit beams of the network device. After determining the transmit beam, the network device can send downlink data to the terminal device through the adjusted transmit beam. When the number of transmit beams is multiple, the coverage area is wider than when the transmit beam is one. As long as the terminal device does not move outside the coverage of these multiple transmit beams, beam adjustment is not required, so Avoid frequent adjustment of beams in high-frequency scenes.

Optionally, if the terminal device finds that there are beams in other directions that have a better pairing than the originally monitored beams, it can also initiate a regular beam adjustment process. In the embodiment of the present application, R and L may include all beam directions, which may be determined according to the capabilities of the terminal device. In the high frequency scenario, if the communication channel can be guaranteed to be LOS or close to LOS, it is also possible to choose not to monitor the beams outside R and/or L around the space.

The beam processing method provided by the embodiment of the present application first obtains spatial information of multiple beams, and then determines the transmit beam of the network device and/or the receive beam of the terminal device according to the spatial information of the multiple beams. The spatial information of multiple beams can reflect the arrangement relationship of each beam in the spatial position or coverage direction, so that the adjacent beams of any beam in the spatial position or coverage direction can be determined, and the beam can be adjusted quickly. Determine the transmit beam of the network device and/or the receive beam of the terminal device through the beam pairing monitored by the terminal device and the optimal transmit beam fed back to the network device, thereby reducing the number of beams that need to be measured and the beams that need to be fed back during beam measurement Measuring information, reducing signaling overhead and switching delay during beam switching. Further, the network device can directly use the best transmit beam fed back by the terminal device as the adjusted transmit beam, or can determine that multiple adjacent transmit beams in the spatial position or coverage direction are collectively used as the network device according to the optimal transmit beam. Transmit beams to achieve larger beam coverage, to reduce frequent beam adjustments when the position of terminal equipment changes, and to reduce system signaling overhead.

Fig. 5 is a schematic flowchart of a beam processing method provided by an embodiment of the application, as shown in Fig. 5, including:

S51. Acquire first transmit beam information, where the first transmit beam is an initial transmit beam or a currently connected beam.

In the embodiment of the present application, there are two possible situations for the first transmit beam. In some embodiments, the first transmit beam is the initial transmit beam, and the initial transmit beam at this time is the beam when the network device and the terminal device initially establish a connection. In other embodiments, the first transmit beam may also be the currently connected beam, and the current connected beam is the beam used by the current network device to communicate with the terminal device.

S52: Determine a transmit beam set according to the first transmit beam information.

After the first transmit beam information is determined, a transmit beam set may be determined according to the first transmit beam information, and the transmit beam set includes one or more transmit beams, which collectively serve as transmit beams of the network device.

Fig. 6 is a schematic diagram of a transmit beam provided by an embodiment of the application. As shown in Fig. 6, it includes a network device 61 and a terminal device 62. The network device 61 determines a transmit beam set according to the first transmit beam information. The transmit beam set includes 3 There are two transmit beams, namely beam 1, beam 2, and beam 3. Therefore, the network device 61 can repeatedly scan these three beams to send downlink data to the terminal device 62. The total coverage of these three beams is larger than that of any one of them. Therefore, as long as the terminal device 62 is within the coverage of any of these three beams, it can communicate with the network device. No beam switching is required.

The beam processing method provided by the embodiment of the application first obtains the first transmit beam information, which is the initial transmit beam or the currently connected beam, and then determines the transmit beam set according to the first transmit beam information. A beam is a transmit beam of a network device, and the set of transmit beams includes one or more beams. When the transmit beam set includes more than one beam, the network device can communicate with the terminal device through the multiple transmit beams in the transmit beam set, and its beam coverage is larger than that of a single beam, which can effectively reduce the beam. Frequent switching and adjustment of the system reduces system overhead.

When determining the transmit beam set, the first transmit beam information needs to be acquired, and the first transmit beam is the initial transmit beam or the currently connected beam.

In the embodiment of the present application, the initial transmission beam and/or the currently connected beam are determined according to the measurement result of the beam, where the measured parameter includes at least one of the reference signal received power and the interference-to-noise ratio.

Specifically, when the beam is initially selected, the network device selects a group of beams within a certain range around the strongest beam space as the transmission beam, and this group of beams is the transmission beam set. When the network device sends downlink data to the terminal device, it repeatedly scans this group of beams, or transmits on these multiple transmit beams through other multiplexing methods, and the terminal device can receive the data according to the best receiving beam direction.

At this time, the terminal device needs to report the beam measurement result, that is, the reference signal received power and/or the interference plus noise ratio. If the report is triggered by an event, the report condition of the terminal device is that the terminal device monitors the reference signal received power and the interference plus noise ratio in the multi-beam space range, and at the same time monitors the reference signal received power of the beam within a certain range outside the multi-beam space range Compared with interference plus noise, the range can be set according to needs or the capabilities of the terminal equipment.

When the terminal device detects that the quality of the beam outside the multi-beam space is better than the quality in the multi-beam space, the terminal device reports, and the reporting mechanism may be the original beam adjustment reporting mechanism. The report of the terminal device can be a periodic report. At this time, the terminal device periodically monitors the reference signal received power and interference plus noise ratio of a certain number of beams within the multi-beam space and outside the multi-beam space to determine the transmission of the network device Beam collection. When the transmit beam set includes only one transmit beam, the network device can send downlink data to the terminal device through this one transmit beam; when the transmit beam set includes multiple transmit beams, the network device can use the multiple transmit beams to send the terminal device The device sends downlink data.

Optionally, the transmit beam set includes multiple beams, and the transmit beam set may include the first transmit beam.

Optionally, any transmission beam in the transmission beam set is a transmission beam adjacent to the first transmission beam, and data transmission with the terminal device is realized through the multiple transmission beams.

In the embodiment of the present application, the transmit beam adjacent to the first transmit beam refers to:

The beam direction and the beam direction of the first transmit beam are transmitted beams whose included angle in space is less than or equal to the preset angle; or,

The beam proximity will be explained below in conjunction with the drawings.

FIG. 7 is a schematic diagram of beam directions of beams provided by an embodiment of the application. As shown in FIG. 7, it includes beam 1 and beam 2. In FIG. 7, the beam directions of beam 1 and beam 2 are shown respectively, where beam 1 The beam direction of beam is OA direction, and the beam direction of beam 2 is OB direction.

According to the beam direction of beam 1 and the beam direction of beam 2, the angle between the beam directions of beam 1 and beam 2 in space can be obtained. As shown in Figure 7, the beam directions of beam 1 and beam 2 are spaced between The angle is θ.

You can set an angle in advance as the preset angle, and then compare θ with the preset angle. When θ is greater than the preset angle, it can be considered that beam 1 and beam 2 are not adjacent beams in the beam direction. Conversely, when θ is less than or equal to the preset angle, it can be considered that beam 1 and beam 2 are adjacent beams in the beam direction.

When it is necessary to determine the transmit beam that is adjacent to the first transmit beam in the beam direction, it can be determined by using the method illustrated in FIG. 7.

The following describes another scheme for determining adjacent beams.

Fig. 8 is a schematic diagram of the beam coverage of the beam provided by the embodiment of the application. As shown in Fig. 8, the beam 1 and the beam 2 are included. The coverage position on the ground is position A, and the coverage position of beam 2 on the ground is position B.

According to the beam coverage of beam 1 and the beam coverage of beam 2, the spatial distance of beam coverage of beam 1 and beam 2 can be obtained. As shown in Figure 8, the spatial distance of beam coverage of beam 1 and beam 2 is S.

You can set a distance in advance as the preset distance, and then compare the size of S with the preset distance. When S is greater than the preset distance, it can be considered that on the beam coverage, beam 1 and beam 2 are not adjacent beams. Conversely, when S is less than or equal to the preset distance, it can be considered that beam 1 and beam 2 are adjacent beams on the beam coverage.

When it is necessary to determine the transmit beam that is adjacent to the first transmit beam on the beam coverage, it can be determined by using the method illustrated in FIG. 8.

It should be noted that as long as one of the conditions illustrated in FIG. 7 or FIG. 8 is satisfied, the two beams can be considered to be adjacent beams, and if both are satisfied, the two beams can also be considered to be adjacent beams.

Optionally, in some embodiments, the transmit beam set further includes at least one second transmit beam other than the first transmit beam, and the second transmit beam is determined by the predicted position of the terminal device at the next time.

The second transmit beam determined in the foregoing manner can make the second transmit beam cover the next position of the terminal device, so that the terminal device is still within the coverage range of the transmit beam set when reaching the next position, without beam switching.

Optionally, the predicted location of the terminal device at the next moment can be obtained in multiple ways. For example, it can be obtained through machine learning, through Kalman filter, through the movement trajectory reported by the terminal device, and so on. The above-mentioned machine learning method can be implemented by, for example, a machine learning algorithm or a machine learning model known to those skilled in the art. The machine learning model can be, for example, a deep learning model (deep learning), a reinforcement learning model (reinforcement learning), etc. The Kalman filter method and the acquisition method of the motion trajectory reported by the terminal device are also methods that are familiar to those skilled in the art, and will not be repeated here.

FIG. 9 is a schematic flowchart of a beam processing method provided by an embodiment of the application, as shown in FIG. 9, including:

S91. Acquire first transmit beam information, where the first transmit beam is the initial transmit beam of the network device, or the currently connected beam of the network device;

S92. Send the first transmit beam information to the network device, where the first transmit beam information is used to determine a set of transmit beams.

The embodiment illustrated in FIG. 9 is a solution applied to a terminal device, and its implementation has been introduced in the foregoing embodiment, and will not be described here.

The beam processing method provided by the embodiment of the application first obtains the first transmit beam information, which is the initial transmit beam or the currently connected beam, and then determines the transmit beam set according to the first transmit beam information. A beam is a transmit beam of a network device, and the set of transmit beams includes one or more beams. When the transmit beam set includes more than one beam, the network device can communicate with the terminal device through the multiple transmit beams in the transmit beam set, and its beam coverage is larger than that of a single beam, which can effectively reduce the beam. Frequent switching and adjustment of the system reduces system overhead. At the same time, by predicting the position of the terminal device at the next time, the second transmit beam is added to the transmit beam set, so that the terminal device is still within the coverage of the transmit beam set when it reaches the next time position, without beam switching, and further Reduce system overhead.

FIG. 10 is a first schematic diagram of a beam processing apparatus provided by an embodiment of the application. As shown in FIG. 10, the beam processing apparatus 100 includes an acquisition module 101 and a determination module 102, wherein:

The acquiring module 101 is used to acquire spatial information of multiple beams;

The determining module 102 is configured to determine the transmit beam of the network device according to the spatial information of the multiple beams.

The beam processing device provided in the embodiment of the present application is used to execute the foregoing method embodiment, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.

FIG. 11 is a second schematic diagram of a beam processing device provided by an embodiment of the application. As shown in FIG. 11, the beam processing device 110 includes an acquisition module 111 and a determination module 112, wherein:

The acquiring module 111 is configured to acquire first transmit beam information, where the first transmit beam is an initial transmit beam or a currently connected beam;

The determining module 112 is configured to determine a transmit beam set according to the first transmit beam information.

Reference signal received power;

Interference plus noise ratio.

Obtained through machine learning;

Obtained by Kalman filter;

Obtained from the motion trajectory reported by the terminal device.

In a possible implementation manner, the method further includes:

FIG. 12 is a third schematic diagram of a beam processing device provided by an embodiment of the application. As shown in FIG. 12, the beam processing device 120 includes an acquisition module 121 and a determination module 122, wherein:

The acquiring module 121 is used to acquire spatial information of multiple beams;

The determining module 122 is configured to determine the receiving beam of the terminal device according to the spatial information of the multiple beams.

FIG. 13 is a fourth schematic diagram of a beam processing device provided by an embodiment of the application. As shown in FIG. 13, the beam processing device 130 includes an acquiring module 131 and a sending module 132, wherein:

The acquiring module 131 is configured to acquire first transmit beam information, where the first transmit beam is the initial transmit beam of the network device, or the currently connected beam of the network device;

The sending module 132 is configured to send the first transmission beam information to the network device, and the first transmission beam information is used to determine a transmission beam set.

Reference signal received power, interference plus noise ratio.

Obtained through machine learning;

Obtained by Kalman filter;

Obtained from the motion trajectory reported by the terminal device.

In a possible implementation manner, a receiving module is further included, and the receiving module is configured to:

FIG. 14 is a schematic diagram of the hardware structure of a communication device provided by an embodiment of the application. The communication device of this embodiment includes: a processor 141 and a memory 142;

The memory 142 is used to store computer programs;

The processor 141 is configured to execute a computer program stored in the memory to implement each step performed by the network device in the foregoing embodiment, or to implement each step performed by the terminal device in the foregoing embodiment. For details, refer to the relevant description in the foregoing method embodiment.

Optionally, the memory 142 may be independent of the processor 141 or independent of the network device, and may also be inside the processor 141 or the communication device. The storage 142 may be a physically independent unit, or may be a storage space on a cloud server or a network hard disk.

When the memory 142 is a device independent of the processor 141, the communication device may further include: a bus 143 for connecting the memory 142 and the processor 141.

The bus 143 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, the buses in the drawings of this application are not limited to only one bus or one type of bus.

In addition, the processor 141 may be a central processing unit, a general-purpose processor, a digital signal processor (English: Digital Signal Processor, abbreviated as: DSP), an application specific integrated circuit (English: Application Specific Integrated Circuit, abbreviated as: ASIC), on-site Programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in combination with the application can be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of this application.

The processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on. In addition, the memory 142 may include: a volatile memory (volatile memory), such as a random-access memory (random-access memory, RAM); the memory may also include a non-volatile memory (non-volatile memory), such as a flash memory Flash memory, hard disk drive (HDD) or solid-state drive (SSD), cloud storage, network attached storage (NAS: network attached Storage), network drive (network drive) ), etc.; the memory may also include a combination of the above-mentioned types of memory or any other medium or product with a storage function.

The communication device provided in this embodiment can be used to execute the method executed by the network device or terminal in the foregoing embodiment, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.

An embodiment of the present application further provides a storage medium, the storage medium includes a computer program, and the computer program is used to implement the methods described in the various possible implementation manners above.

The embodiments of the present application also provide a computer program product, the computer program product includes computer program code, when the computer program code runs on a computer, the computer executes the methods described in the various possible implementation manners above.

An embodiment of the present application further provides a chip, including a memory and a processor, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the chip is installed The communication device executes the methods described in the various possible implementation manners above.

An embodiment of the present application also provides a communication system, and the communication system includes the network device and the terminal device in the foregoing embodiment.

In the several embodiments provided in this application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division, and there may be other divisions in actual implementation, for example, multiple modules can be combined or integrated. To another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or modules, and may be in electrical, mechanical or other forms.

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

In addition, the functional modules in the various embodiments of the present application may be integrated into one processing unit, or each module may exist alone physically, or two or more modules may be integrated into one unit. The units formed by the above-mentioned modules can be implemented in the form of hardware, or in the form of hardware plus software functional units.

The above-mentioned integrated module implemented in the form of a software function module may be stored in a computer readable storage medium. The above-mentioned software function module is stored in a storage medium and includes several instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (English: processor) execute the various embodiments of this application Part of the method.

The above-mentioned storage medium can be realized by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Except programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in Application Specific Integrated Circuits (ASIC for short). Of course, the processor and the storage medium may also exist in the device as discrete components.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this document, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information. Depending on the context, the word "if" as used herein can be interpreted as "when" or "when" or "in response to determination". Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to also include plural forms, unless the context indicates to the contrary. It should be further understood that the terms "including" and "including "Indicates that the described features, steps, operations, elements, components, items, types, and/or groups exist, but does not exclude one or more other features, steps, operations, elements, components, items, types, and/or The existence, appearance, or addition of groups. The terms "or" and "and/or" used herein are interpreted as inclusive or mean any one or any combination. Therefore, "A, B or C" or "A, B and/or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C" . An exception to this definition will only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

It should be understood that, although the steps in the flowchart in the foregoing embodiment are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps is not strictly limited in order, and they can be executed in other orders. Moreover, at least part of the steps in the figure may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and the order of execution is not necessarily sequential. Instead, it may be performed alternately or alternately with other steps or at least a part of other steps or sub-steps or stages.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, but not to limit them; although the embodiments of the present application are described in detail with reference to the foregoing embodiments, those of ordinary skill in the art It should be understood that: it is still possible to modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the embodiments of this application The scope of the program.

Claims

A beam processing method, wherein, applied to a network device, the method includes:

Obtain spatial information of multiple beams;

Determine the transmit beam of the network device according to the spatial information of the multiple beams.
The method according to claim 1, wherein the spatial information is used to indicate the arrangement relationship of each beam in a spatial position or coverage direction, wherein:

For any beam, the arrangement relationship is used to determine a beam adjacent to the any beam in a spatial position or a coverage direction.
The method according to claim 1 or 2, wherein the transmit beams of the network device are multiple transmit beams that are adjacent in a spatial position or a coverage direction obtained according to the spatial information.
A beam processing method, wherein, applied to a network device, the method includes:

Acquiring first transmit beam information, where the first transmit beam is an initial transmit beam or a currently connected beam;

According to the first transmission beam information, a transmission beam set is determined.
The method of claim 4, wherein:

The initial transmission beam and/or the currently connected beam are determined according to the measurement result of the beam.
The method according to claim 5, wherein the measured parameter includes at least one of the following:

Reference signal received power;

Interference plus noise ratio.
The method according to claim 4, wherein any transmission beam in the transmission beam set is a transmission beam adjacent to the first transmission beam.
The method according to claim 7, wherein the transmit beam adjacent to the first transmit beam is:

The beam direction and the beam direction of the first transmit beam are transmitted beams whose included angle in space is less than or equal to a preset angle; or,

The beam coverage and the beam coverage of the first transmit beam are transmit beams whose spatial distance is less than or equal to a preset distance.
The method according to claim 4, wherein the set of transmit beams includes at least one second transmit beam other than the first transmit beam.
The method according to claim 9, wherein the second transmit beam is determined by the predicted position of the terminal device at the next time.
The method according to claim 10, wherein the method for acquiring the predicted position of the terminal device at the next time is one of the following methods:

Obtained through machine learning;

Obtained by Kalman filter;

Obtained from the motion trajectory reported by the terminal device.
The method according to any one of claims 4 to 11, wherein the method further comprises:

Send downlink data to the terminal device through a single or multiple transmit beams in the set of transmit beams.
A beam processing method, wherein, applied to a terminal device, the method includes:

Obtain spatial information of multiple beams;

Determine the receiving beam of the terminal device according to the spatial information of the multiple beams.
The method according to claim 13, wherein the spatial information is used to indicate the arrangement relationship of each beam in a spatial position or coverage direction, wherein:

For any beam, the arrangement relationship is used to determine a beam adjacent to the any beam in a spatial position or coverage direction.
A beam processing method, which is applied to a terminal device, includes:

Acquiring first transmit beam information, where the first transmit beam is the initial transmit beam of the network device, or the currently connected beam of the network device;

Send the first transmit beam information to the network device, where the first transmit beam information is used to determine a set of transmit beams.
The method according to claim 15, wherein the initial transmission beam and/or the currently connected beam are determined according to a measurement result of the beam.
The method according to claim 16, wherein the measured parameter includes at least one of the following:

Reference signal received power, interference plus noise ratio.
The method according to claim 15, wherein any transmission beam in the transmission beam set is a transmission beam adjacent to the first transmission beam.
The method according to claim 18, wherein the transmit beam adjacent to the first transmit beam is:

The beam direction and the beam direction of the first transmit beam are transmitted beams whose included angle in space is less than or equal to a preset angle; and/or,

The beam coverage and the beam coverage of the first transmit beam are transmit beams whose spatial distance is less than or equal to a preset distance.
The method according to claim 15, wherein the set of transmit beams includes at least one second transmit beam other than the first transmit beam.
The method according to claim 20, wherein the second transmit beam is determined by the predicted position of the terminal device at the next time.
The method according to claim 21, wherein the method for acquiring the predicted position of the terminal device at the next time is one of the following methods:

Obtained through machine learning;

Obtained by Kalman filter;

Obtained from the motion trajectory reported by the terminal device.
The method according to any one of claims 15 to 22, wherein the method further comprises:

Receive the downlink data sent by the network device through a single or multiple beams in the transmit beam set.
A communication device, which includes: a processor and a memory;

The memory stores computer execution instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor executes the beam processing method according to claim 1 or 13.
A communication system, which includes:

For implementing the network device of claim 1; and,

It is used to implement the terminal device as claimed in claim 13.
A computer-readable storage medium, wherein a computer-executable instruction is stored in the computer-readable storage medium, and when the computer-executable instruction is executed by a processor, it is used to implement the beam processing method according to claim 1 or 13 .