Beam control method, transmission method, device, sending end, and receiving end

Abstract

The present application relates to the technical field of communications, and discloses a beam control method, a transmission method, a device, a sending end, and a receiving end. The beam control method in embodiments of the present application comprises: a sending end sends reference signals by means of M first antenna blocks, wherein the reference signals sent by different antenna blocks among the M first antenna blocks are mutually orthogonal, the antenna block comprises at least one antenna element, the reference signals are used for calculating the position of a beam focal point, and M is an integer greater than or equal to 3; the sending end acquires the position of the beam focal point; and the sending end performs beam focusing on the basis of the position of the beam focal point.

Description

Beam control method, transmission method, device, sending end and receiving end

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202410443296.8, filed on April 12, 2024, the contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the field of communication technology, and specifically relates to a beam control method, a transmission method, a device, a sending end and a receiving end. BACKGROUND

[0004] Accurate focusing of a beam (i.e., an electromagnetic beam) is a key to improving transmission capacity. One implementation is to focus the beam based on position information of a focus point through a conjugate phase method. However, there is no corresponding solution for how to accurately locate the position information of the beam focus point, thereby affecting the accuracy of beam focusing and further affecting the transmission capacity. SUMMARY

[0005] Embodiments of the present application provide a beam control method, a transmission method, a device, a sending end and a receiving end, which can accurately locate the position information of a beam focus point.

[0006] In a first aspect, a beam control method is provided, the method comprising:

[0007] The sending end transmits reference signals through M first antenna blocks, the reference signals transmitted by different first antenna blocks in the M first antenna blocks are mutually orthogonal, the antenna block comprises at least one antenna unit, the reference signals are used to calculate the position of a beam focus point, and M is an integer greater than or equal to 3;

[0008] The sending end obtains the position of the beam focus point;

[0009] The sending end performs beam focusing according to the position of the beam focus point.

[0010] In a second aspect, a beam control device is provided, the device comprising:

[0011] A first sending module is configured to transmit reference signals through M first antenna blocks, the reference signals transmitted by different first antenna blocks in the M first antenna blocks are mutually orthogonal, the antenna block comprises at least one antenna unit, the reference signals are used to calculate the position of a beam focus point, and M is an integer greater than or equal to 3;

[0012] An obtaining module is configured to obtain the position of the beam focus point;

[0013] a beam focusing module configured to perform beam focusing according to the position of the beam focusing point.

[0014] In a third aspect, a transmission method is provided, the method comprising:

[0015] receiving, by a receiving end, reference signals transmitted by M first antenna blocks of a transmitting end through each second antenna block of the receiving end, the reference signals transmitted by different first antenna blocks of the M first antenna blocks being orthogonal to each other, each antenna block comprising at least one antenna element, the reference signals being used to calculate the position of a beam focusing point, M being an integer greater than or equal to 3;

[0016] determining, by the receiving end, third information according to the reference signals received by each second antenna block, the third information comprising the position of the beam focusing point or distance information of each second antenna block relative to each first antenna block, the distance information comprising scalar distance or path delay information;

[0017] transmitting, by the receiving end, the third information to the transmitting end.

[0018] In a fourth aspect, a transmission apparatus is provided, the apparatus comprising:

[0019] a first receiving module configured to receive, by a receiving end, reference signals transmitted by M first antenna blocks of a transmitting end through each second antenna block of the receiving end, the reference signals transmitted by different first antenna blocks of the M first antenna blocks being orthogonal to each other, each antenna block comprising at least one antenna element, the reference signals being used to calculate the position of a beam focusing point, M being an integer greater than or equal to 3;

[0020] a first determining module configured to determine, by the receiving end, third information according to the reference signals received by each second antenna block, the third information comprising the position of the beam focusing point or distance information of each second antenna block relative to each first antenna block, the distance information comprising scalar distance or path delay information;

[0021] a first transmitting module configured to transmit, by the receiving end, the third information to the transmitting end.

[0022] In a fifth aspect, a transmitting end is provided, the transmitting end comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the method according to the first aspect.

[0023] In a sixth aspect, a sending end is provided, including a processor and a communication interface, wherein the communication interface is configured to send reference signals through M first antenna blocks, the reference signals sent by different antenna blocks of the M first antenna blocks are orthogonal to each other, the antenna block includes at least one antenna unit, the reference signals are used to calculate the position of a beam focusing point, and M is an integer greater than or equal to 3; the processor is configured to obtain the position of the beam focusing point; and the processor is further configured to perform beam focusing according to the position of the beam focusing point.

[0024] In a seventh aspect, a receiving end is provided, including a processor and a memory, the memory stores programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement the steps of the method according to the third aspect.

[0025] In an eighth aspect, a receiving end is provided, including a processor and a communication interface, wherein the communication interface is configured to receive reference signals sent by M first antenna blocks of a sending end through each second antenna block of the receiving end, the reference signals sent by different antenna blocks of the M first antenna blocks are orthogonal to each other, the antenna block includes at least one antenna unit, the reference signals are used to calculate the position of a beam focusing point, and M is an integer greater than or equal to 3; the processor is configured to determine third information according to the reference signals received by each second antenna block, the third information includes the position of the beam focusing point or distance information of each second antenna block relative to each first antenna block, and the distance information includes scalar distance or path delay information; and the communication interface is further configured to send the third information to the sending end.

[0026] In a ninth aspect, a transmission system is provided, including a sending end and a receiving end, the sending end is configured to implement the steps of the beam control method according to the first aspect, and the receiving end is configured to implement the steps of the transmission method according to the third aspect.

[0027] In a tenth aspect, a readable storage medium is provided, the readable storage medium stores programs or instructions, the programs or instructions are executed by a processor to implement the steps of the method according to the first aspect, or implement the steps of the method according to the third aspect.

[0028] In an eleventh aspect, a chip is provided, including a processor and a communication interface, the communication interface and the processor are coupled, the processor is configured to run programs or instructions to implement the steps of the method according to the first aspect, or implement the steps of the method according to the third aspect.

[0029] In a twelfth aspect, a computer program / program product is provided, which comprises computer programs or computer instructions executed by at least one processor to implement the steps of the method according to the first aspect, or to implement the steps of the method according to the third aspect.

[0030] In the embodiments of the present application, the sending end sends reference signals through M first antenna blocks, the reference signals sent by different antenna blocks in the M first antenna blocks are orthogonal to each other, the antenna block comprises at least one antenna unit, the reference signals are used to calculate the position of the beam focusing point, M is an integer greater than or equal to 3; the sending end acquires the position of the beam focusing point; the sending end performs beam focusing according to the position of the beam focusing point, that is, the embodiments of the present application locate the position of the beam focusing point on the receiving end side based on the reference signals sent by the M antenna blocks of the single sending end independently, so that the position of the beam focusing point can be located more accurately. BRIEF DESCRIPTION OF DRAWINGS

[0031] FIG. 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0032] FIG. 2a is a schematic diagram of near-field and far-field effects of an antenna unit and an array antenna according to the embodiments of the present application;

[0033] FIG. 2b is a schematic diagram of dipole cross-polarization in an electromagnetic field between a sending array antenna and a receiving array antenna according to the embodiments of the present application;

[0034] FIG. 2c is a schematic diagram of received power density processed based on a conjugate phase method according to the embodiments of the present application;

[0035] FIG. 3 is a flowchart of a beam control method according to the embodiments of the present application;

[0036] FIG. 4 is a schematic diagram of a reference signal sent by an active antenna unit according to the embodiments of the present application;

[0037] FIG. 5a is a schematic diagram of an active antenna block configuration according to the embodiments of the present application;

[0038] FIG. 5b is a schematic diagram of an active antenna block configuration according to the embodiments of the present application;

[0039] FIG. 5c is a schematic diagram of an active antenna block configuration according to the embodiments of the present application;

[0040] FIG. 5d is a schematic diagram of an active antenna block configuration according to the embodiments of the present application;

[0041] FIG. 6a is a schematic diagram of frequency domain resources of a reference signal in a regular reference signal format according to the embodiments of the present application;

[0042] FIG. 6b is a schematic diagram of frequency domain resource of reference signal in irregular reference signal format according to an embodiment of the present application;

[0043] FIG. 7 is a schematic diagram of active antenna unit transmitting reference signal according to an embodiment of the present application;

[0044] FIG. 8 is a flow chart of a transmission method according to an embodiment of the present application;

[0045] FIG. 9 is a structural diagram of a beam control device according to an embodiment of the present application;

[0046] FIG. 10 is a structural diagram of a transmission device according to an embodiment of the present application;

[0047] FIG. 11 is a structural diagram of a communication device according to an embodiment of the present application;

[0048] FIG. 12 is a structural diagram of a transmission end according to an embodiment of the present application;

[0049] FIG. 13 is a structural diagram of a receiving end according to an embodiment of the present application. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0051] The terms "first", "second" and the like in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are usually a category, not limited to the number of objects, for example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and including B. The character " / " generally represents that the objects before and after are in an "or" relationship.

[0052] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). The direct indication can be understood as that the sender explicitly informs the receiver of specific information, operations to be performed or requested results, etc. in the sent indication. The indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or judges and determines the operations to be performed or the requested results according to the judgment result.

[0053] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, and also in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than the NR system, such as a 6th Generation (6G) communication system. th

[0054] ​FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothing, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmission reception point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical terminology, provided that the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0055] The core network device can include, but is not limited to, at least one of the following: a core network node, a core network function, a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), and the like. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited.

[0056] The sending end of the embodiments of the present application can be a network side device or a terminal, and the receiving end can be a terminal or a network side device. For convenience, the sending end is taken as a network side device and the receiving end is taken as a terminal as an example for description below.

[0057] For the convenience of understanding, some contents related to the embodiments of the present application are described below:

[0058] I. Near-field region array antenna

[0059] An array antenna is composed of a set of adjacent multiple antenna elements, which collectively produce the desired beam. For example, two consecutive aperture elements are placed together with a certain spacing, even though the electromagnetic field of each antenna element is in the far field, but the entire aperture formed by the two antenna elements can produce near field effects. If the number of consecutive aperture elements increases, the likelihood of the entire aperture formed by the consecutive aperture elements producing near field effects also increases.

[0060] The near field region and the far field region can be divided by a threshold distance. As shown in Figure 2a, D e is a single antenna element aperture, and D is the entire array antenna aperture formed by multiple antenna elements. Generally, the entire array antenna aperture formed by multiple antenna elements is much larger than the single antenna element aperture, i.e., D » D e For a single antenna element, the electromagnetic field is divided into two field regions according to the distance between the transmitting end and the receiving end; one is the near field region, and the other is the far field region. The near field region is further divided into the reactive near field region and the radiating near field region.

[0061] It is worth noting that if each antenna element has near field electromagnetic field effects, normal communication cannot be achieved using any propagation method. Therefore, in normal communication applications, in order to ensure effective propagation conditions, at least the electromagnetic field of each antenna element has far field effects. According to different observation distances of the array antenna, the entire array antenna formed by multiple antenna elements can have far field effects or near field effects.

[0062] II. Conjugate-phase approach for near field region

[0063] The conjugate-phase approach is a commonly used beam focusing method based on distance information. Figure 2b is a schematic diagram of dipole cross-polarization of a transmitting antenna and a receiving antenna in an electromagnetic field. At the transmitting end, the s-th antenna array element is at a vector distance of d s from the coordinate origin, and transmits an electromagnetic wave. At the observation point d, the observed electromagnetic wave is at a vector distance of d-d s Therefore, the vector electromagnetic field of the array antenna in the near field region at the observation point d = (x, y, z) can be expressed as:

[0064] where E tx (d, d sp s ) is the vector electromagnetic wave at the distance from the origin of the coordinate system of the transmitting array element, containing the array element pattern, polarization and polarization with polarity p s , and λ is the electromagnetic wavelength.

[0065] If the conjugate phase method is adopted, the radiation electromagnetic wave intensity of the array antenna at the observation point d = (x, y, z) in the near-field region can be expressed as:

[0066] wherein, represents the complex excitation coefficient of the s-th antenna array element, A s is the amplitude, is the phase.

[0067] If the focus point of the electromagnetic field is d F , then the conjugate phase radiation electromagnetic field intensity observed at the observation point d is:

[0068] wherein, the phase of the complex excitation coefficient

[0069] The scalar electromagnetic field intensity E(d′ u ) of the u-th receiving antenna array element is:

[0070] wherein, E rx (d′ u , d s , p′ u ) is the vector electromagnetic wave of the receiving array element located at the origin of the coordinate system, containing the receiving array element pattern, and the polarization with polarity p′ u , and d′ u is the vector distance from the receiving coordinate origin of the u-th receiving antenna array element.

[0071] It should be noted that d′ u coordinate is the vector distance from the receiving coordinate origin of the u-th receiving antenna array element in the local coordinate system. By converting the local coordinate system to the global coordinate system, d′ u can be expressed as d F +d′ uIn this application, for the convenience of explanation, the calculation of the vector is carried out by the local coordinate system, and the process of coordinate system conversion is not involved.

[0072] It is worth noting that after calculating the inner product of the two vector electromagnetic fields, the received electromagnetic field strength becomes a scalar, which can be simplified as: [E tx (d u ,d s ,p s )·E rx (d u ,d s ,p′ u )] =G tx,s [cos -1 (p s ·d u,s )]·G rx,u [π-cos -1 (p′ u ·d u,s )]·ρ u,s (p s ,p′ u ,d u,s )

[0073] Where, ρ u,s (p s ,p′ u ,d u,s ) is the square root of the polarization loss factor (PLF), G tx,s and G rx,u are the array antenna patterns of the sending end and the receiving end respectively, and d u,s =d′ u -d s .

[0074] In practical applications, if the receiving end feeds back its coordinates to the sending end for beam focusing, the focal point d F should be replaced by the estimated focal point That is, And it satisfies:

[0075] Where, is the estimated coordinate of the u-th receiving array antenna unit, which is represented by the local coordinate system.

[0076] Suppose the array antenna is a 16x16 array antenna, the array element spacing is λ / 2, the array antenna is placed on the x-z plane, the distance from the origin to the beam focus point is r, the zenith angle (Zenith Angle) and the azimuth angle (Azimuth Angle) are θ=π / 2 and φ=π / 2 respectively. Figure 2c shows the received power density for different transmission angles and different beam focus points. According to the conjugate phase method, the observation results are as follows:

[0077] The reactive near-field region is: 0λ≤reactive near-field region≤21.4λ;

[0078] The radiative near-field region is: 21.4λ≤radiative near-field region≤225λ.

[0079] The conjugate phase method can effectively focus the electromagnetic field in the focal point d F (equivalent to the distance r) near field and far field.

[0080] It should be noted that, as shown in Figure 2c, the distance r1 is 5, the distance r2 is 10, the distance r3 is 20, the distance r4 is 50, the distance r5 is 100, and the distance r6 is 500. The schematic diagram corresponding to different distances r can be as shown in Figure 2.

[0081] The beam control method provided by the embodiments of the present application will be described in detail in combination with the accompanying drawings and some embodiments and application scenarios.

[0082] Please refer to Figure 3, which is a flow chart of a beam control method provided by an embodiment of the present application. The method can be executed by a sending end, as shown in Figure 3, and includes the following steps:

[0083] In step 301, the sending end sends reference signals through M first antenna blocks. The reference signals sent by different antenna blocks in the M first antenna blocks are orthogonal to each other. The antenna block includes at least one antenna element. The reference signals are used to calculate the position of the beam focus point. M is an integer greater than or equal to 3.

[0084] In the embodiment, each of the M first antenna blocks independently sends reference signals, and the reference signals sent by different first antenna blocks are orthogonal to each other. For example, the M first antenna blocks include antenna block a1 to antenna block a3. The reference signal sent by the antenna block a1 is orthogonal to the reference signal sent by the antenna block a2, the reference signal sent by the antenna block a1 is orthogonal to the reference signal sent by the antenna block a3, and the reference signal sent by the antenna block a2 is orthogonal to the reference signal sent by the antenna block a3.

[0085] The antenna block can include at least one antenna unit. It should be noted that the antenna block can also be referred to as an antenna unit when the antenna block includes one antenna unit. The antenna block can also be referred to as an antenna unit group when the antenna block includes at least two antenna units. The at least two antenna units can be at least two adjacent antenna units in an antenna array.

[0086] The M first antenna blocks can be M antenna blocks selected by a sending end from K antenna blocks, or can be M antenna blocks selected by a receiving end from K antenna blocks and fed back to the sending end, K being an integer greater than or equal to M. For example, as shown in FIG. 4, the antennas of the sending end are composed of a 4*4 antenna array, in which the antenna units at the four corners of the array antennas are used as the first antenna blocks and send reference signals.

[0087] It should be noted that the first antenna block can also be referred to as a sending antenna block or an active antenna block, and the active antenna block can include at least one active antenna unit. The active antenna unit sends a reference signal through at least one of an allocated time domain resource element and a frequency domain resource element, while an inactive antenna unit corresponding to the active antenna unit does not send a reference signal.

[0088] It should also be noted that the array antenna unit in the embodiments of the present application is composed of an antenna unit and a radio frequency chain (RF Chain). Generally, the array antenna unit can also be replaced by an array antenna port, and the antenna unit can also be replaced by an antenna port. For convenience, the embodiments of the present application take the antenna unit as an example for description.

[0089] The reference signal can include, but is not limited to, a common reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DM-RS), or a positioning reference signal (PRS).

[0090] The reference signal is used to calculate the position of the beam focus point. For example, the receiving end can calculate the position of the beam focus point based on the reference signal received by each second antenna block, or the receiving end can calculate the distance of each second antenna block relative to each first antenna block based on the reference signal received by each second antenna block and feed back to the sending end for the sending end to calculate the position of the beam focus point.

[0091] The position of the beam focus point can be represented by the coordinates of the beam focus point or the vector distance of the beam focus point relative to the first target coordinate origin. The coordinates of the beam focus point can be coordinates relative to a local coordinate system on the receiving end side, or coordinates relative to a global coordinate system, etc. The first target coordinate origin can be the coordinate origin of the local coordinate system on the receiving end side, or the coordinate origin of the global coordinate system, etc. It should be noted that in some scenarios, the position of the beam focus point can also be referred to as the position of the receiving end.

[0092] In some optional embodiments, the sending end can send reference signals through the M first antenna blocks to calculate the position of the beam focus point in a near-field scenario. That is, in the case where the distance between the sending end and the receiving end is close, the sending end sends reference signals through the M first antenna blocks to calculate the position of the beam focus point.

[0093] It should be noted that in the near-field scenario, the position (e.g. angle, range) and attitude (e.g. rotation, displacement) measurement information requires relatively accurate coordinates of the beam focus point, which can be used to control the beam direction and power, thereby reducing the misalignment probability at a lower cost. Therefore, it is very important to use reliable reference signals to obtain the position information of the receiving end.

[0094] Step 302, the sending end obtains the position of the beam focus point.

[0095] For example, in the case where the receiving end calculates the position of the beam focus point, the sending end can receive the position of the beam focus point from the receiving end. In the case where the sending end calculates the position of the beam focus point, the sending end can receive the distance of each second antenna block relative to each first antenna block from the receiving end and calculate the position of the beam focus point based on the distance of each second antenna block relative to each first antenna block. The second antenna block is an antenna block of the receiving end that receives the reference signal sent by the first antenna block. The second antenna block can include at least one antenna unit.

[0096] It should be noted that in the embodiments of the present application, the number of antenna units included in the first antenna block and the number of antenna units included in the second antenna block can be the same or different. For example, in the case where the first antenna block includes at least two antenna units, the second antenna block can include one antenna unit.

[0097] In step 303, the sending end performs beam focusing according to the position of the beam focusing point.

[0098] For example, the sending end can perform beam focusing by using the conjugate phase method based on the position of the beam focusing point.

[0099] In the embodiments of the present application, the sending end sends reference signals through M first antenna blocks, the reference signals sent by different first antenna blocks in the M first antenna blocks are orthogonal to each other, the antenna block includes at least one antenna unit, the reference signals are used to calculate the position of the beam focusing point, M is an integer greater than or equal to 3; the sending end obtains the position of the beam focusing point; and the sending end performs beam focusing according to the position of the beam focusing point. That is, in the embodiments of the present application, the position of the beam focusing point on the receiving end side is located based on the reference signals sent by the M antenna blocks of the single sending end independently, which is beneficial to accurately locating the position of the beam focusing point.

[0100] Optionally, the M first antenna blocks are M antenna blocks in any M antenna blocks of K antenna blocks of the sending end, and the M antenna blocks form a polygon with the longest perimeter.

[0101] Alternatively,

[0102] The M first antenna blocks are M antenna blocks in any M antenna blocks of K antenna blocks of the sending end, and the M antenna blocks form a polygon with the largest area.

[0103] Wherein, K is an integer greater than or equal to M.

[0104] In the embodiments, the perimeter of the polygon formed by the M first antenna blocks is greater than the perimeter of the polygon formed by any other M antenna blocks in the K antenna blocks, or the area of the polygon formed by the M first antenna blocks is greater than the area of the polygon formed by any other M antenna blocks in the K antenna blocks, so that the difference between the distances measured based on the reference signals sent by different first antenna blocks is greater, which is beneficial to more accurately locating the position of the beam focusing point.

[0105] The following examples are given in different cases

[0106] Case one: the first antenna block is one antenna unit of an antenna array.

[0107] As shown in FIGS. 5a-5c, one antenna block is one antenna unit of the antenna array, K=16, and the number of active antenna units configured is 3, 4, and 5, respectively. As can be seen from FIGS. 5a-5c, the longest side or the area of the polygon formed by the coordinates of the active antenna units can be maximized.

[0108] In some optional embodiments, the number of active antenna units is 4, and the active antenna units are located at the four corners of the antenna array.

[0109] Case two: the first antenna block is a group of antenna units of the antenna array, and each group of antenna units includes at least two adjacent antenna units.

[0110] Since the power in each radio frequency chain is limited, each group of antenna units can form a beam to enhance the power in the far field and the near field. In this case, when the group of antenna units includes two antenna units, the position of the group of antenna units can be the middle position of the two antenna units, and when the group of antenna units includes at least three antenna units, the position of the group of antenna units can be the center position of the polygon formed by all the antenna units of the group of antenna units. For example, by sending a group reference signal, the electromagnetic wave intensity of the group reference signal can be enhanced, the receiving end antenna coordinate information is fed back to the sending end, or the sending end receives the delay information of the reference signals of different groups of active antenna units, and the receiving end antenna coordinates, i.e., the coordinates of the beam focusing point, are calculated.

[0111] As shown in FIG. 5d, one first antenna block is a group of antenna units of the antenna array, K=16, and the reference signal is sent by four groups of active antenna units, each group of active antenna units is composed of four adjacent antenna units, and the four groups of active antenna units are located at the four corners of the antenna array.

[0112] Optionally, the frequency domain resource density of the reference signals sent by at least two of the M first antenna blocks is different;

[0113] Alternatively,

[0114] The maximum distance range that can be measured by the reference signals sent by at least two of the M first antenna blocks is different;

[0115] Alternatively,

[0116] The types of the reference signals sent by at least two of the M first antenna blocks are different.

[0117] In an embodiment, the reference signals transmitted by at least two of the M first antenna blocks have different frequency domain resource densities, for example, a larger frequency domain resource density is configured for the reference signals transmitted by a portion of the first antenna blocks, and a smaller frequency domain resource density is configured for the reference signals transmitted by another portion of the first antenna blocks, which is beneficial to saving resources while ensuring the measurement accuracy of the beam focusing point.

[0118] In another embodiment, the reference signals transmitted by at least two of the M first antenna blocks have different maximum distance ranges that can be measured, for example, a larger maximum distance range that can be measured is configured for the reference signals transmitted by a portion of the first antenna blocks to ensure the distance measurement accuracy of the beam focusing, and a smaller maximum distance range that can be measured is configured for the reference signals transmitted by another portion of the first antenna blocks to reduce the overhead of reference signal resources.

[0119] In yet another embodiment, the reference signals transmitted by at least two of the M first antenna blocks are of different types, for example, the types of the reference signals can be divided according to the frequency domain resource density or the maximum distance range that can be measured, etc. In this embodiment, different types of reference signals are transmitted by different first antenna blocks in the M first antenna blocks, which is beneficial to flexibly configuring reference signals, for example, configuring different frequency domain resource densities or different maximum distance ranges.

[0120] In some optional embodiments, the reference signals transmitted by at least two of the M first antenna blocks can satisfy at least two of the following conditions: different frequency domain resource densities, different maximum distance ranges that can be measured, and different types, for example, the M first antenna blocks include first antenna block a1 to first antenna block a4, wherein the frequency domain resource density of the reference signals transmitted by the first antenna block a1 is greater than the frequency domain resource density of the reference signals transmitted by the first antenna block ai, and the maximum distance range that can be measured by the reference signals transmitted by the first antenna block ai is greater than the maximum distance range that can be measured by the first antenna block ai, i being 2, 3 or 4.

[0121] Optionally, the frequency domain resource densities of the reference signals of different types are different;

[0122] Or,

[0123] The maximum distance ranges that can be measured by the reference signals of different types are different.

[0124] In some optional embodiments, the frequency domain resource densities of the reference signals of different types are different, and the maximum distance ranges that can be measured by the reference signals of different types are different.

[0125] Optionally, the types of the reference signals include anchor reference signals and non-anchor reference signals;

[0126] The anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, and the maximum distance range that can be measured is the largest. The non-anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, and the maximum distance range that can be measured is smaller than the maximum distance range that can be measured by the anchor reference signal.

[0127] Or,

[0128] The anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, and the maximum distance range that can be measured is the largest. The non-anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, and the maximum distance range that can be measured is smaller than the maximum distance range that can be measured by the anchor reference signal.

[0129] Optionally, the maximum distance range that can be measured by the anchor reference signal and the maximum distance range that can be measured by the non-anchor reference signal satisfy the following relationship: d lmax = p x d kmax ;

[0130] Wherein, d lmax represents the maximum distance range that can be measured by the anchor reference signal, d kmax represents the maximum distance range that can be measured by the non-anchor reference signal, and p represents the resource ratio between the anchor reference signal and the non-anchor reference signal.

[0131] It should be noted that in the near field scene, because the distance between the sending end and the receiving end is close, the design of the reference signal does not need to consider the large maximum distance range (i.e. Maximum Distance Range or Maximum Range). However, the distance measurement granularity requirement of the sending end and the receiving end is relatively high, because the small distance difference error will also affect the measurement accuracy of the transmission angle, the arrival angle, the receiving end coordinates, and thus will affect the near field area beam focusing performance. Therefore, when designing the near field reference signal, the distance measurement granularity can be mainly considered, rather than the maximum distance range. That is, the resources used by the near field reference signal can be realized by reducing the maximum distance range.

[0132] The following examples are used to illustrate the present embodiment:

[0133] For example, as shown in FIG. 4, the antenna of the sending end is composed of a 4x4 antenna array, wherein the antenna units at the four corners of the array antenna are used as active antenna units and send reference signals. Through the receiving processing of the reference signals, the receiving end or the sending end calculates the position of the beam focusing point. Assuming that the distances from the four active antenna units to the beam focusing point are d1, d2, d3 and d4, respectively, four reference signal links are formed.

[0134] To guarantee the distance measurement granularity of the transmitter and the receiver, the reference signals transmitted from the active antenna elements must be distributed over a wide frequency bandwidth, because the minimum granularity of distance measurement Ad min is inversely proportional to the frequency bandwidth used, i.e., where W is the frequency bandwidth and c0is the speed of light. Therefore, to guarantee the minimum granularity of distance measurement, the frequency bandwidth used by the reference signals needs to be maximized, while the sparsity of the reference signals in the frequency spectrum can be relatively reduced.

[0135] Taking an Orthogonal Frequency Division Multiplexing (OFDM) system as an example, one reference signal is configured on every N ch resource elements in the frequency domain. Where N ch is the number of subcarriers between two adjacent reference signals, and Af is the subcarrier spacing. Therefore, the maximum distance range can be represented as:

[0136] The following is a description of non-uniform resource reference signals for the maximum distance range. Where the non-uniform resource reference signals refer to at least two types of reference signals transmitted by different antenna blocks. Different types of reference signals have different maximum distance ranges that can be measured, i.e., different types of reference signals have different measurement maximum distance range capabilities. Where the reference signal with the largest maximum distance range that can be measured is called an anchor reference signal (Anchor RS), and the remaining reference signals are called non-anchor reference signals (Non-anchor RS). The anchor reference signal has a larger density in the frequency domain resource and has a larger measurement maximum distance range capability, while the non-anchor reference signal has a smaller density in the frequency domain resource and has a smaller measurement maximum distance range capability, i.e., the non-anchor reference signal can only provide the distance difference of different reference signal links.

[0137] It should be noted that by ensuring that at least one reference signal has a larger maximum distance range capability, the distance dimension of the near-field beam focusing is ensured, and at the same time, the distance from the first antenna block to the second antenna block (i.e., the distance from the transmitter to the receiver) measured by the reference signal can be used to determine whether the receiver is in the near-field region or the far-field region of the transmitter. While reducing the maximum distance range capability of other reference signals is to reduce the overhead of reference signal resources.

[0138] As shown in FIG. 4, the anchor reference signal is transmitted from the active antenna element s1, while the non-anchor reference signals are transmitted from the active antenna elements s2, s3, and s4, respectively. Therefore, the reference signal transmitted from the active antenna element s1 provides a larger maximum distance range d lmaxand the reference signals transmitted from other non-active antenna elements (i.e., active antenna element s2, active antenna element s3 and active antenna element s4) provide smaller maximum distance ranges d2, d3 and d4, respectively kmax wherein d lmax = ρ × d kmax , ρ is a reference signal resource proportion number, ρ is a positive number and ρ ≥ 1.

[0139] Optionally, the maximum distance range that the anchor reference signal can measure and the maximum distance range that the non-anchor reference signal can measure can be configured by high layer signaling, such as Radio Resource Control (RRC) signaling or Media Access Control-Control Element (MAC-CE) signaling, etc. Illustratively, the maximum distance range that the anchor reference signal can measure and the maximum distance range that the non-anchor reference signal can measure can be configured by the sending end and notified to the receiving end.

[0140] Optionally, the frequency domain resources of the above-mentioned reference signals can be realized by setting a frequency domain resource interval parameter. If the frequency domain resource interval of the anchor reference signal is N anc , i.e., one reference signal is transmitted per N anc frequency domain resource elements, and the frequency domain resource interval of the non-anchor reference signal is N non-anc , i.e., one reference signal is transmitted per N non-anc frequency domain resource elements, then N anc , N non-anc and d lmax , d kmax satisfy the following relationship:

[0141] wherein d lmax represents the maximum distance range that the anchor reference signal can measure, and d kmax represents the maximum distance range that the non-anchor reference signal can measure.

[0142] For example, as shown in FIG. 6a, the reference signal resource proportion number is ρ = 2, the number of frequency domain resources is N, N = 16, N anc = 2, N non-anc = 4, and thus it can be deduced that d lmax = 2d kmax .

[0143] Optionally, the frequency domain resources of the reference signals transmitted by at least one first antenna block in the M first antenna blocks are equally allocated frequency domain resources or frequency domain resources with equal resource element intervals.

[0144] or

[0145] The frequency domain resources of the reference signals transmitted by at least one of the M first antenna blocks are non-equally allocated frequency domain resources or frequency domain resources with non-equally spaced resource elements.

[0146] In the embodiment, the equally allocated frequency domain resources or the frequency domain resources with equally spaced resource elements can also be referred to as regular reference signal format frequency domain resources. For example, as shown in FIG. 6a, the frequency domain resources of the anchor reference signals and the non-anchor reference signals are equally allocated frequency domain resources or frequency domain resources with equally spaced resource elements, where the resource element spacing of the frequency domain resources of the anchor reference signals is all N anc , and the resource element spacing of the frequency domain resources of the non-anchor reference signals is all N non-anc .

[0147] The non-equally allocated frequency domain resources or the frequency domain resources with non-equally spaced resource elements can also be referred to as irregular reference signal format frequency domain resources. For example, as shown in FIG. 6b, the frequency domain resources of the anchor reference signals and the non-anchor reference signals are non-equally allocated frequency domain resources or frequency domain resources with non-equally spaced resource elements, where the minimum resource element spacing of the frequency domain resources of the anchor reference signals is N anc , and the minimum resource element spacing of the frequency domain resources of the non-anchor reference signals is N non-anc .

[0148] In some optional embodiments, the regular reference signal format or the irregular reference signal format can depend on the size of the channel noise. Generally, the frequency domain resources required by the regular reference signal format are higher than those required by the irregular reference signal format. That is, in the case of relatively large signal-to-noise ratio (SNR), the sending end can use the irregular reference signal format to transmit the reference signal. The advantage of using the irregular reference signal format is that the reference signal resource overhead can be reduced, but the accuracy of distance measurement will be sacrificed accordingly.

[0149] Optionally, in the case where the frequency domain resources of the anchor reference signals and the non-anchor reference signals are non-equally allocated frequency domain resources or frequency domain resources with non-equally spaced resource elements, p is determined according to the minimum resource element spacing of the frequency resources of the anchor reference signals and the minimum resource element spacing of the frequency resources of the non-anchor reference signals.

[0150] In the embodiment, p represents the resource ratio between the anchor reference signals and the non-anchor reference signals. For example, as shown in FIG. 6b, the minimum resource element spacing of the frequency domain resources of the anchor reference signals is N anc , and the minimum resource element spacing of the frequency domain resources of the non-anchor reference signals is N non-anc , then p is N anc / N.non-anc a ratio of the first value to the second value.

[0151] Optionally, the sending end obtains the position of the beam focusing point, comprising:

[0152] The sending end receives the position of the beam focusing point from the receiving end.

[0153] In this embodiment, the receiving end can calculate the position of the beam focusing point based on the reference signal received by each second antenna block and feed back to the sending end. For example, the receiving end can calculate the position of each second antenna block according to the reference signal received by each second antenna block and the position of each first antenna block, and then calculate the position of the beam focusing point according to the position of each second antenna block.

[0154] In this embodiment, the receiving end calculates the position of the beam focusing point based on the reference signal received by each second antenna block and feeds back to the sending end, which is beneficial to save the cost of information feedback.

[0155] Optionally, before the sending end obtains the position of the beam focusing point, the method further comprises:

[0156] The sending end sends the position of each first antenna block in the M first antenna blocks to the receiving end.

[0157] In this embodiment, the sending end sends the position of each first antenna block in the M first antenna blocks to the receiving end. The position of the first antenna block can be represented by the coordinates of the first antenna block or the vector distance of the first antenna block relative to the second target coordinate origin, etc. The coordinates of the first antenna block can be the coordinates relative to the local coordinate system on the sending end side, or can be the coordinates relative to the global coordinate system, etc. The above-mentioned second target coordinate origin can be the coordinate origin of the local coordinate system on the sending end side, or can be the coordinate origin of the global coordinate system, etc. Then the receiving end can calculate the position of the beam focusing point according to the reference signal received by each second antenna block and the position of each first antenna block.

[0158] It should be noted that in the case that the first antenna block includes at least two antenna units, the position of the first antenna block can be determined according to the positions of the at least two antenna units. For example, in the case that the first antenna block includes two antenna units, the position of the first antenna block can be the middle position of the two antenna units, and in the case that the first antenna block includes at least three antenna units, the position of the first antenna block can be the center position of the polygon formed by all the antenna units of the first antenna block.

[0159] Optionally, the sending end obtains the position of the beam focusing point, comprising:

[0160] The sending end receives distance information of each second antenna block of the receiving end relative to each first antenna block from the receiving end, the distance information including scalar distance or path delay information, the second antenna block being an antenna unit receiving a reference signal sent by the first antenna block;

[0161] The sending end calculates the position of each second antenna block according to the distance information of each second antenna block relative to each first antenna block and the positions of the M first antenna blocks.

[0162] The sending end calculates the position of the beam focus point according to the positions of the second antenna blocks.

[0163] In the embodiment, the second antenna block can include at least one antenna unit. The second antenna block can also be referred to as a receiving antenna block, which can include at least one receiving antenna unit.

[0164] The position of the second antenna block can be represented by the coordinates of the second antenna block or the vector distance of the second antenna block relative to the first target coordinate origin, etc. The coordinates of the second antenna block can be coordinates relative to a local coordinate system on the receiving end side, or coordinates relative to a global coordinate system, etc. The first target coordinate origin can be the coordinate origin of the local coordinate system on the receiving end side, or the coordinate origin of the global coordinate system, etc.

[0165] In the embodiment, the sending end calculates the position of the beam focus point. The sending end receives distance information of each second antenna block relative to each first antenna block from the receiving end, calculates the position of each second antenna block according to the distance information of each second antenna block relative to each first antenna block and the positions of the M first antenna blocks (for example, the vector distance d s of each first antenna block relative to the second coordinate origin, the second coordinate origin being the coordinate origin of the local coordinate system on the sending end side), and calculates the position of the beam focus point according to the positions of the second antenna blocks, for example, taking the average of the vector distances of each second antenna block relative to the first coordinate origin as the coordinates of the beam focus point, that is:

[0166] wherein, represents the coordinates of the beam focus point, represents the vector distance of the second antenna block relative to the first coordinate origin, and N represents the number of second antenna blocks.

[0167] ​It should be noted that, in the case where the second antenna block includes at least two antenna elements, the distance information of the second antenna block relative to the first antenna block can be determined according to the distance information of all antenna elements in the second antenna block relative to the first antenna block. The position of the second antenna block can be determined according to the positions of all antenna elements in the second antenna block. In the case where the first antenna block includes at least two antenna elements, the position of the first antenna block can be determined according to the positions of all antenna elements in the first antenna block.

[0168] The following is illustrated in conjunction with FIG. 7:

[0169] FIG. 7 is a schematic diagram of transmitting a reference signal from active antenna elements according to an embodiment of the present application, wherein the transmitting array antenna is composed of K array antenna elements, i.e., K = 16. Four antenna elements from four corners of the transmitting array antenna 4 are configured as active antenna elements, denoted by indexes s1, s2, s3 and s4. The active antenna element s1, the active antenna element s2, the active antenna element s3 and the active antenna element s4 form a quadrilateral with the longest perimeter and the largest area. As shown in FIG. 7, the transmitting end transmits a reference signal through the active antenna element s1, the active antenna element s2, the active antenna element s3 and the active antenna element s4. The following is described in different cases:

[0170] Case one: the position of the beam focusing point, i.e., the coordinates of the beam focusing point, is calculated by the receiving end.

[0171] The processor of the receiving end calculates the vector distance of each receiving antenna element relative to the first coordinate origin based on the reference signal received by each receiving antenna element and the vector distance of each active antenna element relative to the second coordinate origin u∈[1,2,...,N]; and according to the coordinates of the beam focusing point are calculated i.e., the average receiving antenna element coordinates, which can be calculated by the above formula (2) After obtaining , the receiving end can feed back to the transmitting end.

[0172] Case two: the position of the beam focusing point, i.e., the coordinates of the beam focusing point, is calculated by the transmitting end.

[0173] The processor of the receiving end calculates the scalar distance of each receiving antenna element relative to each active antenna element according to the reference signal received by each receiving antenna element, i.e., and feeds back to the transmitting end, where i = 1, 2, 3, 4. The transmitting end calculates the coordinates of the beam focusing point according to the feedback calculate the vector distance of each receiving antenna unit relative to the first coordinate origin based on the path delay information between the antenna units of the sending end and the antenna units of the receiving end Further, the scalar distance or the vector distance can be calculated by the above formula (2)

[0174] It should be noted that the method of calculating the scalar distance or the vector distance based on the path delay information between the antenna units of the sending end and the antenna units of the receiving end can refer to the existing positioning algorithm technology, and the embodiment is not limited thereto.

[0175] It should be further noted that in the near-field scenario, since the distance between the sending end and the receiving end is short, the attenuation loss is relatively low, and the influence of the surrounding reflector is also relatively low, therefore, the coordinates of the beam focusing point can be calculated without increasing the reference signal power and the reference signal resources.

[0176] Optionally, the sending end performs beam focusing according to the position of the beam focusing point, comprising:

[0177] The sending end performs beam focusing according to the position of the beam focusing point and the distance between each first antenna block and the beam focusing point.

[0178] The distance between the first target antenna block and the beam focusing point is

[0179] The distance between the second target antenna block and the beam focusing point is Δd l,k =d k -(d l mod dk max );

[0180] d l represents the distance between the first target antenna block and the beam focusing point determined based on the anchor reference signal sent by the first target antenna block, d k represents the distance between the second target antenna block and the beam focusing point determined based on the non-anchor reference signal sent by the second target antenna block, d kmax represents the maximum distance range that the non-anchor reference signal can measure.

[0181] The first target antenna block is an antenna block in the M first antenna blocks that sends an anchor reference signal, and the second target antenna block is an antenna block in the M first antenna blocks that sends a non-anchor reference signal.

[0182] In this embodiment, mod represents a modulo operator. The maximum distance range that the non-anchor reference signal can measure can be predefined by the protocol or determined by the transmitting end. It should be noted that the maximum distance ranges that can be measured for different non-anchor reference signals can be the same or different.

[0183] The present embodiment is described below with reference to FIG4 :

[0184] 4, the anchor reference signal is sent from the active antenna unit s1, and the non-anchor reference signal is sent from the active antenna unit s2, the active antenna unit s3 and the active antenna unit s4 respectively. The maximum distance range that the anchor reference signal can measure is d lmax The maximum distance range that can be measured by the non-anchor reference signal is d kmax .

[0185] For example, the receiving end can lmax The distance d between the first target antenna block and the beam focus point is determined by the received anchor reference signal l For example, see Figure 4, l = 1, that is, the receiving end according to d lmax The receiving end can estimate the distance d1 between the active antenna unit s1 and the beam focus point based on d kmax and the received non-anchor reference signal estimate d k For example, see Figure 4, s = 2, 3, 4, that is, the receiving end according to d 2max The non-anchor reference signal sent by the active antenna unit s2 is used to estimate the distance d2 between the active antenna unit s2 and the beam focus point. 3max The non-anchor reference signal sent by the active antenna unit s3 is used to estimate the distance d3 between the active antenna unit s3 and the beam focus point. 4max The non-anchor reference signal sent by the active antenna unit s4 is received and used to estimate the distance d4 between the active antenna unit s4 and the beam focus point.

[0186] Furthermore, according to d l and d s , the distance difference Δd between the first target antenna block and the beam focus point and the distance between the second target antenna block and the beam focus point can be calculated l,k , Δd l,k =d k -(d l mod d kmax ). For example, see Figure 4, l = 1, k = 2, 3, 4, that is: Δd 1,2 =d2-(d1 mod d 2max ), Δd 1,3 =d3-(d1 mod d 3max ), Δd1,4 = d4- (d1 mod d 4max ).

[0187] Therefore, the distance from the first target antenna block to the beam focusing point can be estimated as: For example, referring to FIG. 4, the distance between the active antenna unit s1 and the beam focusing point can be:

[0188] The distance from the second target antenna block to the beam focusing point can be estimated as: For example, referring to FIG. 4, the distance between the active antenna unit s2 and the beam focusing point can be: The distance between the active antenna unit s3 and the beam focusing point can be: The distance between the active antenna unit s4 and the beam focusing point can be:

[0189] In some optional embodiments, the sending end can determine the distance between each third antenna block and the beam focusing point according to the distance between each first antenna block and the beam focusing point and the position of each third antenna block, wherein the distance between the third antenna block and the beam focusing point can be and t≠s, the third antenna block is an antenna unit of the sending end that does not send a reference signal, for example, the third antenna block is an antenna block of all antenna blocks of the sending end except the first antenna block.

[0190] For example, the sending end can perform beam focusing according to the position of the beam focusing point, the distance between each first antenna block and the beam focusing point, and the distance between each third antenna block and the beam focusing point.

[0191] Further, the sending end can determine the complex excitation coefficient w of the s-th first antenna block according to s and the position (i.e. coordinates) of the beam focusing point, wherein A s is the amplitude, is the phase, s = 1, 2, …, K, is the coordinates of the beam focusing point, and K is the number of antenna units of the sending end, may include the above and The beam focusing can be implemented based on the above formula (1), and specific details can be referred to the above description of the conjugate phase method for the near-field region, which will not be repeated here.

[0192] Optionally, the method further comprises:

[0193] The sending end receives first information from the receiving end, and the first information comprises information of an antenna block selected by the receiving end for sending a reference signal.

[0194] In this embodiment, the antenna block for sending the reference signal can be selected by the receiving end and fed back to the sending end. For example, the sending end can first configure multiple antenna units for the receiving end, and the receiving end can select active antenna units according to the multiple antenna units configured for the receiving end, and feed back the related information of the selected active antenna units to the sending end.

[0195] Optionally, the method further comprises:

[0196] The sending end sends second information to the receiving end;

[0197] The second information comprises at least one of the following: configuration information of an anchor reference signal, configuration information of a non-anchor reference signal, a maximum distance range that can be measured by the anchor reference signal, and a maximum distance range that can be measured by the non-anchor reference signal.

[0198] In this embodiment, the second information is configured by the sending end and sent to the receiving end. For example, the sending end can send the second information to the receiving end through high layer signaling, which can include RRC signaling or MAC-CE signaling, etc.

[0199] In some optional embodiments, the sending end can send the second information and the position of each of the M first antenna blocks to the receiving end through the same high layer signaling.

[0200] Please refer to FIG. 8, which is a flow chart of a beam control method provided by the embodiments of the present application, which can be executed by a network side device. As shown in FIG. 8, the method comprises the following steps:

[0201] Step 801: The receiving end receives a reference signal sent by M first antenna blocks of a sending end through each second antenna block of the receiving end, the reference signals sent by different antenna blocks of the M first antenna blocks are mutually orthogonal, each antenna block comprises at least one antenna unit, the reference signal is used to calculate the position of a beam focusing point, and M is an integer greater than or equal to 3.

[0202] Step 802: The receiving end determines third information according to the reference signal received by each second antenna block, the third information comprises the position of the beam focusing point or distance information of each second antenna block relative to each first antenna block, and the distance information comprises scalar distance or path delay information.

[0203] Step 803: The receiving end sends the third information to the sending end.

[0204] Exemplarily, the receiving end can send the third information to the sending end through physical layer signaling, for example, the above-mentioned physical layer signaling can include a physical downlink control channel (PDCCH).

[0205] Optionally, the frequency domain resource density of the reference signals sent by at least two of the M first antenna blocks is different;

[0206] Alternatively,

[0207] The maximum distance range that can be measured by the reference signals sent by at least two of the M first antenna blocks is different;

[0208] Alternatively,

[0209] The types of the reference signals sent by at least two of the M first antenna blocks are different.

[0210] Optionally, the frequency domain resource density of the reference signals of different types is different;

[0211] Alternatively,

[0212] The maximum distance range that can be measured by the reference signals of different types is different.

[0213] Optionally, the types of the reference signals include anchor reference signals and non-anchor reference signals;

[0214] The anchor reference signal is the reference signal among the reference signals sent by the M first antenna blocks, the maximum distance range that can be measured by which is the largest, and the non-anchor reference signal is the reference signal among the reference signals sent by the M first antenna blocks, the maximum distance range that can be measured by which is smaller than the maximum distance range that can be measured by the anchor reference signal;

[0215] Alternatively,

[0216] The anchor reference signal is the reference signal among the reference signals sent by the M first antenna blocks, the frequency domain resource density of which is the largest, and the non-anchor reference signal is the reference signal among the reference signals sent by the M first antenna blocks, the maximum distance range that can be measured by which is smaller than the maximum distance range that can be measured by the anchor reference signal.

[0217] Optionally, the maximum distance range that can be measured by the anchor reference signal and the maximum distance range that can be measured by the non-anchor reference signal satisfy the following relationship: lmax = p x d kmax ;

[0218] wherein d lmaxd represents a maximum distance range that the anchor reference signal is capable of measuring kmax ρ represents a maximum distance range that the non-anchor reference signal is capable of measuring, and ρ represents a resource proportion between the anchor reference signal and the non-anchor reference signal.

[0219] Optionally, the frequency domain resources of the reference signals transmitted by at least one of the M first antenna blocks are equally allocated frequency domain resources or frequency domain resources with equal resource element intervals.

[0220] Alternatively,

[0221] The frequency domain resources of the reference signals transmitted by at least one of the M first antenna blocks are non-equally allocated frequency domain resources or frequency domain resources with unequal resource element intervals.

[0222] Optionally, in the case that the frequency domain resources of the anchor reference signal and the non-anchor reference signal are both non-equally allocated frequency domain resources or frequency domain resources with unequal resource element intervals, ρ is determined according to the minimum resource element interval of the frequency resources of the anchor reference signal and the minimum resource element interval of the frequency resources of the non-anchor reference signal.

[0223] Optionally, the third information includes the position of the beam focusing point, and the method further comprises:

[0224] The receiving end receives the position of each of the M first antenna blocks from the transmitting end.

[0225] The receiving end determines third information according to the reference signals received by each of the second antenna blocks, including:

[0226] The receiving end calculates the position of each of the second antenna blocks according to the reference signals received by each of the second antenna blocks and the position of each of the first antenna blocks, respectively.

[0227] The receiving end calculates the position of the beam focusing point according to the positions of each of the second antenna blocks.

[0228] Exemplarily, the receiving end can calculate the scalar distance of each second antenna block relative to each first antenna block according to the reference signal received by each second antenna block, and calculate the position of each second antenna block (e.g., the vector distance of each second antenna block relative to the first coordinate origin) according to the scalar distance of each second antenna block relative to each first antenna block and the position of each first antenna block (e.g., the vector distance of each first antenna block relative to the second coordinate origin). Then the position of the beam focus point can be calculated according to the position of each second antenna block by using the above formula (2), and fed back to the sending end. The first coordinate origin is the coordinate origin of the local coordinate system on the receiving end side. The second coordinate origin is the coordinate origin of the local coordinate system on the sending end side.

[0229] Optionally, the receiving end sends the third information to the sending end, including:

[0230] In the case that the receiving end is in the near-field region of the sending end, the receiving end sends the third information to the sending end.

[0231] In this embodiment, in the case that the receiving end is in the near-field region of the beam transmitted by the sending end, the receiving end sends the third information to the sending end, that is, only in the near-field scenario, the receiving end determines the third information according to the reference signal received by each second antenna block, and sends the third information to the sending end.

[0232] Optionally, the method further includes:

[0233] In the case that the receiving end is in the far-field region of the sending end, the receiving end sends the pre-coding matrix indicator (PMI) to the sending end.

[0234] In this embodiment, in the case that the receiving end is in the far-field region of the beam transmitted by the sending end, the receiving end sends the PMI to the sending end, that is, in the far-field scenario, the receiving end does not feed back the third information.

[0235] Optionally, the method further includes:

[0236] The receiving end determines the region in which the receiving end is located according to the distance between the first antenna block and the second antenna block, and the region includes the near-field region of the sending end and the far-field region of the sending end.

[0237] Exemplarily, a distance between the first antenna block and the second antenna block can be compared with a threshold value, and in a case that the distance between the first antenna block and the second antenna block is less than or equal to the threshold value, it is determined that the receiving end is in a near-field region of the sending end, otherwise, it is determined that the receiving end is in a far-field region of the sending end. Wherein, the above-mentioned threshold value can be configured by the sending end through RRC signaling or notified through MAC-CE signaling.

[0238] Optionally, the method further comprises:

[0239] The receiving end receives antenna element configuration information from the sending end;

[0240] The receiving end sends first information to the sending end, and the first information comprises information of an antenna block selected by the receiving end for sending a reference signal.

[0241] Optionally, the method further comprises:

[0242] The receiving end receives second information from the sending end;

[0243] Wherein, the second information comprises at least one of the following: configuration information of an anchor reference signal, configuration information of a non-anchor reference signal, a maximum distance range that the anchor reference signal can measure, and a maximum distance range that the non-anchor reference signal can measure.

[0244] It should be noted that the implementation mode of the embodiment can refer to the related description of the embodiment shown in FIG. 3, which will not be repeated here.

[0245] It should be noted that the beam control method provided in the embodiment can be executed by a beam control device, or a control module in the beam control device for executing the beam control method. In the embodiment, the beam control device executes the beam control method as an example to illustrate the beam control device provided in the embodiment.

[0246] Please refer to FIG. 9, which is a structure diagram of a beam control device provided in an embodiment of the present application, as shown in FIG. 9, the beam control device 900 comprises:

[0247] A first sending module 901 is configured to send a reference signal through M first antenna blocks, the reference signals sent by different antenna blocks in the M first antenna blocks are orthogonal to each other, the antenna block comprises at least one antenna element, the reference signal is used to calculate the position of a beam focusing point, and M is an integer greater than or equal to 3;

[0248] An acquisition module 902 is configured to acquire the position of the beam focusing point;

[0249] A beam focusing module 903 is configured to perform beam focusing according to the position of the beam focusing point.

[0250] Optionally, the M first antenna blocks are M antenna blocks with the longest perimeter among any M antenna blocks of the K antenna blocks of the sending end;

[0251] Alternatively,

[0252] the M first antenna blocks are M antenna blocks with the largest area among any M antenna blocks of the K antenna blocks of the sending end;

[0253] wherein K is an integer greater than or equal to M.

[0254] Optionally, the frequency domain resource density of the reference signals sent by at least two first antenna blocks among the M first antenna blocks is different;

[0255] Alternatively,

[0256] the maximum distance range that can be measured by the reference signals sent by at least two first antenna blocks among the M first antenna blocks is different;

[0257] Alternatively,

[0258] the types of the reference signals sent by at least two first antenna blocks among the M first antenna blocks are different.

[0259] Optionally, the frequency domain resource density of different types of reference signals is different;

[0260] Alternatively,

[0261] the maximum distance range that can be measured by different types of reference signals is different.

[0262] Optionally, the types of the reference signals include anchor reference signals and non-anchor reference signals;

[0263] wherein the anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, which has the largest maximum distance range that can be measured, and the non-anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, which has a maximum distance range that can be measured smaller than the maximum distance range that can be measured by the anchor reference signal;

[0264] Alternatively,

[0265] the anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, which has the largest frequency domain resource density, and the non-anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, which has a maximum distance range that can be measured smaller than the maximum distance range that can be measured by the anchor reference signal.

[0266] Optionally, a relationship between a maximum distance range that the anchor reference signal is capable of measuring and a maximum distance range that the non-anchor reference signal is capable of measuring satisfies: d lmax = p x d kmax ;

[0267] wherein d lmax represents the maximum distance range that the anchor reference signal is capable of measuring, d kmax represents the maximum distance range that the non-anchor reference signal is capable of measuring, and p represents a resource ratio between the anchor reference signal and the non-anchor reference signal.

[0268] Optionally, frequency domain resources of reference signals transmitted by at least one of the M first antenna blocks are equally allocated frequency domain resources or frequency domain resources with equal resource element intervals.

[0269] Alternatively,

[0270] Frequency domain resources of reference signals transmitted by at least one of the M first antenna blocks are unequally allocated frequency domain resources or frequency domain resources with unequal resource element intervals.

[0271] Optionally, in a case where frequency domain resources of the anchor reference signal and the non-anchor reference signal are both unequally allocated frequency domain resources or frequency domain resources with unequal resource element intervals, p is determined according to a minimum resource element interval of frequency resources of the anchor reference signal and a minimum resource element interval of frequency resources of the non-anchor reference signal.

[0272] Optionally, the obtaining module is specifically configured to:

[0273] receive, from a receiving end, a position of the beam focusing point.

[0274] Optionally, the apparatus further includes:

[0275] a second sending module configured to, before the obtaining of the position of the beam focusing point, send, to the receiving end, a position of each of the M first antenna blocks.

[0276] Optionally, the obtaining module is specifically configured to:

[0277] receive, from a receiving end, distance information of each second antenna block of the receiving end relative to each of the first antenna blocks, the distance information including scalar distance or path delay information, the second antenna block being an antenna unit receiving reference signals transmitted by the first antenna blocks;

[0278] calculate a position of each of the second antenna blocks according to distance information of each of the second antenna blocks relative to each of the first antenna blocks and the positions of the M first antenna blocks, respectively.

[0279] According to the position of each of the second antenna blocks, the position of the beam focusing point is calculated.

[0280] Optionally, the beam focusing module is specifically configured to:

[0281] According to the position of the beam focusing point and the distance between each of the first antenna blocks and the beam focusing point, beam focusing is performed.

[0282] The distance between the first target antenna block and the beam focusing point is

[0283] The distance between the second target antenna block and the beam focusing point is Δd l,k = d k - (d l mod dk max ) ;

[0284] d l represents the distance between the first target antenna block and the beam focusing point determined based on an anchor reference signal transmitted by the first target antenna block, d k represents the distance between the second target antenna block and the beam focusing point determined based on a non-anchor reference signal transmitted by the second target antenna block, d kmax represents the maximum distance range that the non-anchor reference signal can measure.

[0285] The first target antenna block is an antenna block in the M first antenna blocks that transmits an anchor reference signal, and the second target antenna block is an antenna block in the M first antenna blocks that transmits a non-anchor reference signal.

[0286] Optionally, the apparatus further comprises:

[0287] The receiving module is configured to receive first information from a receiving end, the first information comprising information of antenna blocks selected by the receiving end for transmitting reference signals.

[0288] Optionally, the apparatus further comprises:

[0289] The third transmitting module is configured to transmit second information to a receiving end.

[0290] The second information comprises at least one of the following: configuration information of an anchor reference signal, configuration information of a non-anchor reference signal, a maximum distance range that the anchor reference signal can measure, and a maximum distance range that the non-anchor reference signal can measure.

[0291] The beam control apparatus in the embodiments of the present application can be an electronic device, for example, an electronic device with an operating system, or a component in the electronic device, for example, an integrated circuit or a chip. The electronic device can be a network side device, or a device other than the network side device. Exemplarily, the network side device can include, but is not limited to, the types of the network side device 12 listed above, and the device other than the network side device can be a server, a network attached storage (NAS), and the like, which are not limited in the embodiments of the present application.

[0292] The beam control apparatus provided in the embodiments of the present application can implement each process implemented by the method embodiment of FIG. 3 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0293] Please refer to FIG. 10, which is a structural diagram of a transmission apparatus provided in the embodiments of the present application. As shown in FIG. 10, the transmission apparatus 1000 includes:

[0294] The first receiving module 1001 is configured to receive, by each second antenna block of a receiving end, a reference signal sent by M first antenna blocks of a sending end, the reference signals sent by different antenna blocks in the M first antenna blocks are mutually orthogonal, the antenna block includes at least one antenna unit, the reference signal is used to calculate the position of a beam focusing point, and M is an integer greater than or equal to 3;

[0295] The first determining module 1002 is configured to determine third information according to the reference signal received by each second antenna block, the third information includes the position of the beam focusing point or distance information of each second antenna block relative to each first antenna block, and the distance information includes scalar distance or path delay information;

[0296] The first sending module 1003 is configured to send the third information to the sending end.

[0297] Optionally, the reference signals sent by at least two first antenna blocks in the M first antenna blocks have different frequency domain resource densities;

[0298] Alternatively,

[0299] The reference signals sent by at least two first antenna blocks in the M first antenna blocks have different maximum distance ranges that can be measured;

[0300] Alternatively,

[0301] The reference signals sent by at least two first antenna blocks in the M first antenna blocks are of different types.

[0302] Optionally, the reference signals of different types have different frequency domain resource densities;

[0303] or,

[0304] Different types of reference signals have different maximum distance ranges that can be measured.

[0305] Optionally, the types of the reference signals include anchor reference signals and non-anchor reference signals.

[0306] The anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, which has the largest maximum distance range that can be measured. The non-anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, which has a maximum distance range that is smaller than the maximum distance range that can be measured by the anchor reference signal.

[0307] or,

[0308] The anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, which has the largest maximum distance range that can be measured. The non-anchor reference signal is a reference signal among the reference signals sent by the M first antenna blocks, which has a maximum distance range that is smaller than the maximum distance range that can be measured by the anchor reference signal.

[0309] Optionally, the maximum distance range that can be measured by the anchor reference signal and the maximum distance range that can be measured by the non-anchor reference signal satisfy the following relationship: d lmax = p x d kmax ;

[0310] wherein d lmax represents the maximum distance range that can be measured by the anchor reference signal, d kmax represents the maximum distance range that can be measured by the non-anchor reference signal, and p represents the resource proportion between the anchor reference signal and the non-anchor reference signal.

[0311] Optionally, the frequency domain resources of the reference signals sent by at least one first antenna block among the M first antenna blocks are equally allocated frequency domain resources or frequency domain resources with equal resource element intervals.

[0312] or,

[0313] The frequency domain resources of the reference signals sent by at least one first antenna block among the M first antenna blocks are unequally allocated frequency domain resources or frequency domain resources with unequal resource element intervals.

[0314] Optionally, in the case that the frequency domain resources of the anchor reference signal and the non-anchor reference signal are unequally allocated frequency domain resources or frequency domain resources with unequal resource element intervals, p is determined according to the minimum resource element interval of the frequency resource of the anchor reference signal and the minimum resource element interval of the frequency resource of the non-anchor reference signal.

[0315] Optionally, the third information comprises a position of the beam focus point, and the apparatus further comprises:

[0316] a second receiving module, configured to receive, from the sending end, a position of each of the M first antenna blocks;

[0317] The first determining module is specifically configured to:

[0318] calculate a position of each of the second antenna blocks according to a reference signal received by each of the second antenna blocks and the position of each of the first antenna blocks respectively;

[0319] calculate the position of the beam focus point according to the position of each of the second antenna blocks.

[0320] Optionally, the first sending module is specifically configured to:

[0321] when the receiving end is in a near-field region of the sending end, send the third information to the sending end.

[0322] Optionally, the apparatus further comprises:

[0323] a second sending module, configured to, when the receiving end is in a far-field region of the sending end, send a precoding matrix index to the sending end.

[0324] Optionally, the apparatus further comprises:

[0325] a second determining module, configured to determine a region in which the receiving end is located according to a distance between the first antenna block and the second antenna block, the region comprising a near-field region of the sending end and a far-field region of the sending end.

[0326] Optionally, the apparatus further comprises:

[0327] a second receiving module, configured to receive, from the sending end, antenna element configuration information;

[0328] a third sending module, configured to send, to the sending end, first information, the first information comprising information of an antenna block selected by the receiving end for sending a reference signal.

[0329] Optionally, the apparatus further comprises:

[0330] a third receiving module, configured to receive, from the sending end, second information;

[0331] The second information comprises at least one of the following: configuration information of an anchor reference signal, configuration information of a non-anchor reference signal, a maximum distance range in which the anchor reference signal can be measured, a maximum distance range in which the non-anchor reference signal can be measured.

[0332] The transmission apparatus in the embodiments of the present application can be an electronic device, for example, an electronic device with an operating system, or a component in an electronic device, for example, an integrated circuit or a chip. The electronic device can be a terminal or other device. For example, the network side device can include, but is not limited to, the types of terminals 11 listed above, and the other device can be a server, a network attached storage (NAS), etc., which are not limited in the embodiments of the present application.

[0333] The transmission apparatus provided in the embodiments of the present application can implement each process achieved by the method embodiment of FIG. 8 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0334] Optionally, as shown in FIG. 11, the embodiments of the present application further provide a communication device 1100, which includes a processor 1101 and a memory 1102, and the memory 1102 stores programs or instructions executable on the processor 1101. For example, when the communication device 1100 is a sending end, the programs or instructions are executed by the processor 1101 to implement each step of the above-described beam control method embodiment and achieve the same technical effects. When the communication device 1100 is a receiving end, the programs or instructions are executed by the processor 1101 to implement each step of the above-described transmission method embodiment and achieve the same technical effects. To avoid repetition, details are not described herein.

[0335] The embodiments of the present application further provide a sending end, which includes a processor and a communication interface. The communication interface is configured to send reference signals through M first antenna blocks, the reference signals sent by different antenna blocks in the M first antenna blocks are orthogonal to each other, the antenna block includes at least one antenna unit, the reference signals are used to calculate the position of a beam focusing point, M is an integer greater than or equal to 3, and the processor is configured to obtain the position of the beam focusing point and perform beam focusing according to the position of the beam focusing point. The sending end embodiment corresponds to the above-described sending end method embodiment, each implementation process and implementation manner of the above-described method embodiment can be applied to the sending end embodiment and achieve the same technical effects.

[0336] Specifically, the embodiment of the present application further provides a sending end. As shown in FIG. 12, the sending end 1200 includes an antenna 1201, a radio frequency device 1202, a baseband device 1203, a processor 1204 and a memory 1205. The antenna 1201 is connected with the radio frequency device 1202. In the uplink direction, the radio frequency device 1202 receives information through the antenna 1201, and sends the received information to the baseband device 1203 for processing. In the downlink direction, the baseband device 1203 processes information to be sent, and sends the processed information to the radio frequency device 1202, which processes the received information and sends it out through the antenna 1201.

[0337] The method performed by the sending end in the above embodiment can be implemented in the baseband device 1203, which includes a baseband processor.

[0338] The baseband device 1203 may, for example, include at least one baseband board on which a plurality of chips are arranged, as shown in FIG. 12. One of the chips is, for example, a baseband processor, which is connected with the memory 1205 through a bus interface to call programs in the memory 1205 and perform the network device operations shown in the above method embodiments.

[0339] The sending end may further include a network interface 1206, which is, for example, a Common Public Radio Interface (CPRI).

[0340] Specifically, the sending end 1200 of the embodiment of the present application further includes instructions or programs stored in the memory 1205 and executable on the processor 1204, and the processor 1204 calls the instructions or programs in the memory 1205 to perform the method performed by each module shown in FIG. 9 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0341] The embodiment of the application further provides a receiving end, comprising a processor and a communication interface, the communication interface is used for receiving reference signals sent by M first antenna blocks of a sending end through each second antenna block of the receiving end, the reference signals sent by different antenna blocks of the M first antenna blocks are orthogonal to each other, the antenna block comprises at least one antenna unit, the reference signals are used for calculating the position of a beam focusing point, M is an integer greater than or equal to 3; the processor is used for determining third information according to the reference signals received by each second antenna block, the third information comprises the position of the beam focusing point or distance information of each second antenna block relative to each first antenna block, the distance information comprises scalar distance or path delay information; and the communication interface is further used for sending the third information to the sending end. The receiving end embodiment corresponds to the receiving end side method embodiment described above, each implementation process and implementation manner of the method embodiment can be applied to the receiving end embodiment, and the same technical effects can be achieved. Specifically, Fig. 13 is a schematic diagram of the hardware structure of a receiving end for implementing the embodiment of the application.

[0342] The receiving end 1300 comprises at least part of components such as a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309, and a processor 1310.

[0343] Those skilled in the art can understand that the receiving end 1300 can further comprise a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 1310 through a power management system, so as to realize the functions of power management, such as charging, discharging, and power consumption management, through the power management system. The structure of the receiving end shown in Fig. 13 does not constitute a limitation on the receiving end, and the receiving end can comprise more or fewer components than those shown, or some components can be combined, or different components can be arranged, which will not be described here.

[0344] It should be understood that in the embodiments of the present application, the input unit 1304 can include a graphics processing unit (GPU) 13041 and a microphone 13042. The graphics processing unit 13041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1306 can include a display panel 13061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1307 includes at least one of a touch panel 13071 and other input devices 13072. The touch panel 13071 is also called a touch screen. The touch panel 13071 can include two parts of a touch detection device and a touch controller. The other input devices 13072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, and the like, which will not be described here.

[0345] In the embodiments of the present application, after the radio frequency unit 1301 receives the downlink data from the network side device, it can be transmitted to the processor 1310 for processing. In addition, the radio frequency unit 1301 can send uplink data to the network side device. Generally, the radio frequency unit 1301 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0346] The memory 1309 can be used to store software programs or instructions and various data. The memory 1309 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 1309 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 1309 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0347] The processor 1310 can include one or more processing units; optionally, the processor 1310 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1310.

[0348] The radio frequency unit 1301 is configured to receive the reference signals sent by the M first antenna blocks of the sending end through each second antenna block of the receiving end, the reference signals sent by different antenna blocks in the M first antenna blocks are mutually orthogonal, the antenna block includes at least one antenna unit, the reference signals are used to calculate the position of the beam focusing point, and M is an integer greater than or equal to 3;

[0349] The processor 1310 is configured to determine third information according to the reference signals received by each of the second antenna blocks, the third information including position information of the beam focusing point or distance information of each of the second antenna blocks relative to each of the first antenna blocks, the distance information including scalar distance or path delay information.

[0350] The radio frequency unit 1301 is further configured to send the third information to the sending end.

[0351] It can be understood that the implementation process of each implementation manner mentioned in the embodiment can refer to the related description of the foregoing method embodiments and achieve the same or corresponding technical effects. To avoid repetition, details are not described herein again.

[0352] The embodiment of the present application further provides a readable storage medium, which stores a program or instructions, and the program or instructions are executed by a processor to implement each process of the foregoing beam control method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein again.

[0353] The processor is the processor in the terminal in the foregoing embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0354] The embodiment of the present application further provides a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is configured to run a program or instructions to implement each process of the foregoing beam control method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein again.

[0355] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0356] The embodiment of the present application further provides a computer program / program product, which includes a computer program or computer instructions, and the computer program or computer instructions are executed by at least one processor to implement each process of the foregoing beam control method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein again.

[0357] The embodiment of the present application further provides a transmission system, which includes a sending end and a receiving end, the sending end is configured to execute each process of the method embodiments as shown in FIG. 3 and the foregoing method embodiments, and the receiving end is configured to execute each process of the method embodiments as shown in FIG. 8 and the foregoing method embodiments, and achieve the same technical effects. To avoid repetition, details are not described herein again.

[0358] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or the like does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the methods and apparatuses of the present application can be carried out by specific hardware, software, or a combination thereof, and that the scope of the application is not limited to the specific order of execution of the steps described in the examples. In addition, features described in relation to certain examples can be combined in other examples.

[0359] From the above description of the embodiments, it is clear that the above-mentioned method can be realized by means of a computer software product and a general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0360] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, but not restrictive, and those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A beam steering method, comprising: The transmitting end sends a reference signal through M first antenna blocks, where the reference signals sent by different antenna blocks in the M first antenna blocks are orthogonal to each other, the antenna block includes at least one antenna element, and the reference signal is used to calculate the position of the beam focus point, where M is an integer greater than or equal to 3; The transmitting end obtains the position of the beam focus point; The transmitting end performs beam focusing according to the position of the beam focusing point.

2. The method according to claim 1, wherein The M first antenna blocks are M antenna blocks whose polygonal perimeters are the longest among any M antenna blocks among the K antenna blocks of the transmitting end; or, The M first antenna blocks are M antenna blocks with the largest polygonal area among any M antenna blocks among the K antenna blocks of the transmitting end; Wherein, K is an integer greater than or equal to M.

3. The method according to claim 1 or 2, wherein: At least two of the M first antenna blocks have different frequency domain resource densities of reference signals sent by the first antenna blocks; or, At least two of the M first antenna blocks have different maximum distance ranges that can be measured by reference signals sent by the first antenna blocks; or, Among the M first antenna blocks, at least two first antenna blocks send reference signals of different types.

4. The method according to claim 3, wherein: Different types of reference signals have different frequency domain resource densities; or, Different types of reference signals can measure different maximum distance ranges.

5. The method according to claim 3 or 4, wherein: The type of the reference signal includes an anchor reference signal and a non-anchor reference signal; The anchor reference signal is a reference signal having a largest maximum measurable distance range among the reference signals transmitted by the M first antenna blocks, and the non-anchor reference signal is a reference signal having a maximum measurable distance range smaller than the maximum measurable distance range of the anchor reference signal among the reference signals transmitted by the M first antenna blocks. or, The anchor reference signal is a reference signal with the highest frequency domain resource density among the reference signals sent by the M first antenna blocks, and the non-anchor reference signal is a reference signal with a maximum measurable distance range smaller than the maximum measurable distance range of the anchor reference signal among the reference signals sent by the M first antenna blocks.

6. The method according to claim 5, wherein: The maximum distance range that the anchor reference signal can measure and the maximum distance range that the non-anchor reference signal can measure satisfy the following relationship: lmax =ρ×d kmax ; Among them, d lmax Denotes the maximum distance range that the anchor reference signal can measure, d kmax represents the maximum distance range in which the non-anchor reference signal can be measured, and p represents the resource ratio between the anchor reference signal and the non-anchor reference signal.

7. The method according to any one of claims 1 to 6, wherein The frequency domain resources of the reference signal sent by at least one first antenna block in the M first antenna blocks are equally allocated frequency domain resources or frequency domain resources with equal resource element intervals; or, Among the M first antenna blocks, there is at least one first antenna block whose frequency domain resources for sending a reference signal are unequally allocated frequency domain resources or frequency domain resources with unequal resource element intervals.

8. The method according to claim 7, wherein: In the case where the frequency domain resources of the anchor reference signal and the non-anchor reference signal are both unequally allocated frequency domain resources, or frequency domain resources with unequal resource element intervals, ρ is determined based on the minimum resource element interval of the frequency resources of the anchor reference signal and the minimum resource element interval of the frequency resources of the non-anchor reference signal.

9. The method according to any one of claims 1 to 8, wherein The transmitting end obtains the position of the beam focus point, including: The transmitting end receives the position of the beam focus point from the receiving end.

10. The method according to claim 9, wherein: Before the transmitting end obtains the position of the beam focus point, the method further includes: The transmitting end sends the position of each first antenna block in the M first antenna blocks to the receiving end.

11. The method according to any one of claims 1 to 8, wherein The transmitting end obtains the position of the beam focus point, including: The transmitting end receives, from the receiving end, distance information of each second antenna block of the receiving end relative to each first antenna block, where the distance information includes scalar distance or path delay information, and the second antenna block is an antenna unit that receives the reference signal sent by the first antenna block; The transmitting end calculates the position of each second antenna block based on the distance information of each second antenna block relative to each first antenna block and the positions of the M first antenna blocks; The transmitting end calculates the position of the beam focus point according to the position of each second antenna block.

12. The method according to any one of claims 1 to 11, wherein The transmitting end performs beam focusing according to the position of the beam focusing point, including: The transmitting end performs beam focusing according to the position of the beam focusing point and the distance between each of the first antenna blocks and the beam focusing point; The distance between the first target antenna block and the beam focusing point is The distance between the second target antenna block and the beam focusing point is Δd l,k =d k -(d l against dk max ); d l represents the distance between the first target antenna block and the beam focus point determined based on the anchor reference signal sent by the first target antenna block, d k represents the distance between the second target antenna block and the beam focus point determined based on the non-anchor reference signal sent by the second target antenna block, d kmax Indicates the maximum distance range that the non-anchor reference signal can measure; The first target antenna block is an antenna block in which the reference signal sent by the M first antenna blocks is an anchor reference signal, and the second target antenna block is an antenna block in which the reference signal sent by the M first antenna blocks is a non-anchor reference signal.

13. The method according to any one of claims 1 to 12, further comprising: The transmitting end receives first information from the receiving end, where the first information includes information of an antenna block selected by the receiving end for transmitting a reference signal.

14. The method according to any one of claims 1 to 13, further comprising: The sending end sends second information to the receiving end; The second information includes at least one of the following: configuration information of an anchor reference signal, configuration information of a non-anchor reference signal, a maximum distance range that an anchor reference signal can measure, and a maximum distance range that a non-anchor reference signal can measure.

15. A transmission method, comprising: A receiving end receives, through each second antenna block of the receiving end, a reference signal sent by M first antenna blocks of the transmitting end, where the reference signals sent by different antenna blocks in the M first antenna blocks are mutually orthogonal, the antenna block includes at least one antenna element, and the reference signal is used to calculate the position of the beam focus point, where M is an integer greater than or equal to 3; The receiving end determines third information based on the reference signal received by each second antenna block, where the third information includes a position of the beam focus point or distance information of each second antenna block relative to each first antenna block, where the distance information includes a scalar distance or path delay information; The receiving end sends the third information to the sending end.

16. The method according to claim 15, wherein At least two of the M first antenna blocks have different frequency domain resource densities of reference signals sent by the first antenna blocks; or, At least two of the M first antenna blocks have different maximum distance ranges that can be measured by reference signals sent by the first antenna blocks; or, Among the M first antenna blocks, at least two first antenna blocks send reference signals of different types.

17. The method according to claim 16, wherein: Different types of reference signals have different frequency domain resource densities; or, Different types of reference signals can measure different maximum distance ranges.

18. The method according to claim 16 or 17, wherein The type of the reference signal includes an anchor reference signal and a non-anchor reference signal; The anchor reference signal is a reference signal having a largest maximum measurable distance range among the reference signals transmitted by the M first antenna blocks, and the non-anchor reference signal is a reference signal having a maximum measurable distance range smaller than the maximum measurable distance range of the anchor reference signal among the reference signals transmitted by the M first antenna blocks. or, The anchor reference signal is a reference signal with the highest frequency domain resource density among the reference signals sent by the M first antenna blocks, and the non-anchor reference signal is a reference signal with a maximum measurable distance range smaller than the maximum measurable distance range of the anchor reference signal among the reference signals sent by the M first antenna blocks.

19. The method according to claim 18, wherein The maximum distance range that the anchor reference signal can measure and the maximum distance range that the non-anchor reference signal can measure satisfy the following relationship: lmax =ρ×d kmax ; Among them, d lmax Denotes the maximum distance range that the anchor reference signal can measure, d kmax represents the maximum distance range in which the non-anchor reference signal can be measured, and p represents the resource ratio between the anchor reference signal and the non-anchor reference signal.

20. The method according to any one of claims 15 to 19, wherein The frequency domain resources of the reference signal sent by at least one first antenna block in the M first antenna blocks are equally allocated frequency domain resources or frequency domain resources with equal resource element intervals; or, Among the M first antenna blocks, there is at least one first antenna block whose frequency domain resources for sending a reference signal are unequally allocated frequency domain resources or frequency domain resources with unequal resource element intervals.

21. The method according to claim 20, wherein In the case where the frequency domain resources of the anchor reference signal and the non-anchor reference signal are both unequally allocated frequency domain resources, or frequency domain resources with unequal resource element intervals, ρ is determined based on the minimum resource element interval of the frequency resources of the anchor reference signal and the minimum resource element interval of the frequency resources of the non-anchor reference signal.

22. The method according to any one of claims 15 to 21, wherein The third information includes the position of the beam focus point, and the method further includes: The receiving end receives a position of each first antenna block in the M first antenna blocks from the transmitting end; The receiving end determines third information according to the reference signal received by each second antenna block, including: The receiving end calculates the position of each second antenna block according to the reference signal received by each second antenna block and the position of each first antenna block; The receiving end calculates the position of the beam focus point according to the position of each second antenna block.

23. The method according to any one of claims 15 to 22, wherein The receiving end sending the third information to the sending end includes: When the receiving end is in a near-field area of ​​the transmitting end, the receiving end sends the third information to the transmitting end.

24. The method according to claim 23, further comprising: In a case where the receiving end is in a far-field area of ​​the transmitting end, the receiving end sends a precoding matrix index to the transmitting end.

25. The method according to claim 23 or 24, further comprising: The receiving end determines the area where the receiving end is located according to the distance between the first antenna block and the second antenna block, and the area includes the near-field area of ​​the transmitting end and the far-field area of ​​the transmitting end.

26. The method according to any one of claims 15 to 25, further comprising: The receiving end receives antenna unit configuration information from the transmitting end; The receiving end sends first information to the transmitting end, where the first information includes information of an antenna block selected by the receiving end for sending a reference signal.

27. The method according to any one of claims 15 to 26, further comprising: The receiving end receives second information from the sending end; The second information includes at least one of the following: configuration information of an anchor reference signal, configuration information of a non-anchor reference signal, a maximum distance range that an anchor reference signal can measure, and a maximum distance range that a non-anchor reference signal can measure.

28. A beam steering device comprising: a first transmitting module, configured to transmit a reference signal through M first antenna blocks, where the reference signals transmitted by the M first antenna blocks are orthogonal to each other, the antenna block including at least one antenna element, and the reference signal is used to calculate a position of a beam focus point, where M is an integer greater than or equal to 3; An acquisition module, configured to acquire the position of the beam focus point; The beam focusing module is used to perform beam focusing according to the position of the beam focusing point.

29. The apparatus according to claim 28, wherein The M first antenna blocks are M antenna blocks whose polygonal perimeters are the longest among any M antenna blocks among the K antenna blocks of the transmitting end; or, The M first antenna blocks are M antenna blocks with the largest polygonal area among any M antenna blocks among the K antenna blocks of the transmitting end; Wherein, K is an integer greater than or equal to M.

30. The device according to claim 28 or 29, wherein At least two of the M first antenna blocks have different frequency domain resource densities of reference signals sent by the first antenna blocks; or, At least two of the M first antenna blocks have different maximum distance ranges that can be measured by reference signals sent by the first antenna blocks; or, Among the M first antenna blocks, at least two first antenna blocks send reference signals of different types.

31. The device according to any one of claims 28 to 30, wherein The frequency domain resources of the reference signal sent by at least one first antenna block in the M first antenna blocks are equally allocated frequency domain resources or frequency domain resources with equal resource element intervals; or, Among the M first antenna blocks, there is at least one first antenna block whose frequency domain resources for sending a reference signal are unequally allocated frequency domain resources or frequency domain resources with unequal resource element intervals.

32. The device according to any one of claims 28 to 31, wherein The acquisition module is specifically used for: The position of the beam focus point is received from a receiving end.

33. The apparatus of claim 32, further comprising: The second sending module is configured to send the position of each of the M first antenna blocks to the receiving end before obtaining the position of the beam focus point.

34. The device according to any one of claims 28 to 31, wherein The acquisition module is specifically used for: receiving, from a receiving end, distance information of each second antenna block of the receiving end relative to each first antenna block, the distance information including scalar distance or path delay information, wherein the second antenna block is an antenna unit that receives a reference signal sent by the first antenna block; Calculating the position of each second antenna block based on the distance information of each second antenna block relative to each first antenna block and the positions of the M first antenna blocks; The position of the beam focus point is calculated according to the position of each of the second antenna blocks.

35. A transmission device comprising: a first receiving module, configured to receive, through each second antenna block of the receiving end, reference signals sent by M first antenna blocks of the transmitting end, where the reference signals sent by the M first antenna blocks are mutually orthogonal, the antenna block including at least one antenna element, the reference signals being used to calculate a position of a beam focus point, where M is an integer greater than or equal to 3; a first determining module, configured to determine third information based on a reference signal received by each second antenna block, the third information including a position of the beam focus point or distance information of each second antenna block relative to each first antenna block, the distance information including a scalar distance or path delay information; The first sending module is configured to send the third information to the sending end.

36. The apparatus of claim 35, wherein: The third information includes the position of the beam focus point, and the apparatus further includes: A second receiving module is configured to receive a position of each of the M first antenna blocks from the transmitting end; The first determining module is specifically configured to: Calculating the position of each second antenna block according to the reference signal received by each second antenna block and the position of each first antenna block; The position of the beam focus point is calculated according to the position of each of the second antenna blocks.

37. A transmitting end, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the beam control method according to any one of claims 1 to 14 are implemented.

38. A receiving end, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the transmission method according to any one of claims 15 to 27 are implemented.

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