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

Abstract

The invention discloses a beam control method, a transmission method, a device, a transmitting end and a receiving end, and belongs to the technical field of communication, the beam control method of the embodiment of the invention comprises the following steps: the transmitting end transmits reference signals through M first antenna blocks, the reference signals transmitted by different antenna blocks in the M first antenna blocks are mutually orthogonal, the antenna block comprises at least one antenna unit, the reference signal is used for calculating the position of a beam focus point, and M is an integer greater than or equal to 3; the sending end obtains the position of the beam focus point; and the transmitting end performs beam focusing according to the position of the beam focusing point.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a beam control method, a transmission method, a device, a transmitting end, and a receiving end. Background Art

[0002] Accurately focusing an electromagnetic beam is key to increasing transmission capacity. One approach is to use the conjugate phase method to focus the beam based on the location of the focal point. However, there is no solution for accurately locating the beam's focal point, which affects beam focusing accuracy and, in turn, transmission capacity. Summary of the Invention

[0003] The embodiments of the present application provide a beam control method, a transmission method, an apparatus, a transmitter, and a receiver, which can more accurately locate the position information of the beam focal point.

[0004] In a first aspect, a beam steering method is provided, the method comprising:

[0005] The transmitting end sends a reference signal through M first antenna blocks, where 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 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;

[0006] The transmitting end obtains the position of the beam focus point;

[0007] The transmitting end performs beam focusing according to the position of the beam focusing point.

[0008] In a second aspect, a beam steering apparatus is provided, the apparatus comprising:

[0009] 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;

[0010] An acquisition module, configured to acquire the position of the beam focus point;

[0011] The beam focusing module is used to perform beam focusing according to the position of the beam focusing point.

[0012] In a third aspect, a transmission method is provided, the method comprising:

[0013] A receiving end receives, through each second antenna block of the receiving end, reference signals sent by M first antenna blocks of the transmitting end, where reference signals sent by different first 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 a position of a beam focus point, where M is an integer greater than or equal to 3;

[0014] The receiving end determines, based on the reference signal received by each second antenna block, third information, 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;

[0015] The receiving end sends the third information to the sending end.

[0016] In a fourth aspect, a transmission device is provided, the device comprising:

[0017] 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;

[0018] 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;

[0019] The first sending module is configured to send the third information to the sending end.

[0020] In a fifth aspect, a transmitting end is provided, which includes 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 method described in the first aspect are implemented.

[0021] In the sixth aspect, a transmitting end is provided, including a processor and a communication interface, wherein the communication interface is used 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 includes at least one antenna unit, and the reference signal is used to calculate the position of the beam focusing point, M is an integer greater than or equal to 3; the processor is used to obtain the position of the beam focusing point; the processor is also used to perform beam focusing according to the position of the beam focusing point.

[0022] In the seventh aspect, a receiving end is provided, which includes 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 method described in the third aspect are implemented.

[0023] In an eighth aspect, a receiving end is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive reference signals sent by M first antenna blocks of a transmitting 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 orthogonal to each other, the 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; the processor is used to determine third information based on the reference signal received by each second antenna block, the third information including the position of the beam focusing point or the distance information of each second antenna block relative to each first antenna block, the distance information including scalar distance or path delay information; the communication interface is also used to send the third information to the transmitting end.

[0024] In the ninth aspect, a transmission system is provided, comprising: a transmitting end and a receiving end, wherein the transmitting end can be used to execute the steps of the beam control method as described in the first aspect, and the receiving end can be used to execute the steps of the transmission method as described in the third aspect.

[0025] In the tenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the third aspect are implemented.

[0026] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the third aspect.

[0027] In the twelfth aspect, a computer program / program product is provided, which includes a computer program or computer instructions, and the computer program or computer instructions are executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the third aspect.

[0028] In an embodiment of the present application, the transmitting end sends a reference signal through M first antenna blocks, and 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, and the reference signal is used to calculate the position of the beam focusing point, where M is an integer greater than or equal to 3; the transmitting end obtains the position of the beam focusing point; the transmitting end performs beam focusing according to the position of the beam focusing point, that is, the embodiment of the present application locates the position of the beam focusing point on the receiving end side based on the reference signals independently sent by the M antenna blocks of a single transmitting end, so that the position of the beam focusing point can be located more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0030] Figure 2a is a schematic diagram of the near-field and far-field effects of the antenna unit and array antenna provided in an embodiment of the present application;

[0031] Figure 2b Schematic diagram of dipole cross-polarization of a transmitting array antenna and a receiving array antenna in an electromagnetic field provided by an embodiment of the present application;

[0032] Figure 2c is a schematic diagram of the received power density after processing based on the conjugate phase method provided in an embodiment of the present application;

[0033] Figure 3 is a flow chart of a beam control method provided in an embodiment of the present application;

[0034] Figure 4 This is one of the schematic diagrams of the active antenna unit sending a reference signal provided in an embodiment of the present application;

[0035] Figure 5a This is one of the schematic diagrams of the active antenna block configuration provided in the embodiment of the present application;

[0036] Figure 5b This is the second schematic diagram of the active antenna block configuration provided in an embodiment of the present application;

[0037] Figure 5c This is the third schematic diagram of the active antenna block configuration provided in an embodiment of the present application;

[0038] Figure 5d This is the fourth schematic diagram of the active antenna block configuration provided in an embodiment of the present application;

[0039] Figure 6a Schematic diagram of frequency domain resources of a reference signal in a regular reference signal format provided by an embodiment of the present application;

[0040] Figure 6b Schematic diagram of frequency domain resources of a reference signal in an irregular reference signal format provided by an embodiment of the present application;

[0041] Figure 7 This is a second schematic diagram of an active antenna unit sending a reference signal provided in an embodiment of the present application;

[0042] Figure 8 This is a flow chart of a transmission method provided by an embodiment of the present application;

[0043] Figure 9 is a structural diagram of a beam control device provided in an embodiment of the present application;

[0044] Figure 10 is a structural diagram of a transmission device provided in an embodiment of the present application;

[0045] Figure 11 is a structural diagram of a communication device provided in an embodiment of the present application;

[0046] Figure 12 This is a structural diagram of the transmitting end provided in an embodiment of the present application;

[0047] Figure 13 This is a structural diagram of the receiving end provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0049] The terms "first", "second", etc. in this 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 are interchangeable where appropriate, 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" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0050] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0051] 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 technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0052] Figure 1The block diagram of a wireless communication system applicable to the embodiments of the present application is shown. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle user equipment (VUE), a ship-borne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc., and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called 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 embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0053] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0054] The transmitting end of the embodiment 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 following description is made by taking the transmitting end as a network side device and the receiving end as a terminal as an example.

[0055] For ease of understanding, some of the contents involved in the embodiments of this application are described below:

[0056] 1. Near-field area array antenna

[0057] An array antenna consists of a set of multiple adjacent antenna elements that combine to produce the desired beam. For example, if two consecutive aperture elements are placed together with a certain spacing, even if the electromagnetic field of each antenna element is far-field, the overall aperture formed by the two antenna elements may experience near-field effects. As the number of consecutive aperture elements increases, the likelihood of the overall aperture experiencing near-field effects also increases.

[0058] The near field area and the far field area can be divided by a threshold distance. Figure 2a As shown, D e is the aperture of a single antenna unit, and D is the aperture of the entire array antenna formed by multiple antenna units. Generally speaking, the aperture of the entire array antenna formed by multiple antenna units is much larger than the aperture of a single antenna unit, that is, D>>D e For a single antenna unit, the electromagnetic field is divided into two regions based on the distance between the transmitter and receiver: the near-field region and the far-field region. The near-field region is further divided into the reactive near-field region and the radiating near-field region.

[0059] It's worth noting that if each antenna element exhibits a near-field electromagnetic effect, normal communication cannot be achieved using any propagation method. Therefore, in normal communication applications, to ensure effective propagation conditions, at least each antenna element's electromagnetic field must exhibit a far-field effect. Depending on the observation distance of the array antenna, the entire array antenna formed by multiple antenna elements will exhibit either a far-field effect or a near-field effect.

[0060] 2. Conjugate Phase Method for Near Field Region

[0061] Conjugate-phase approach is a commonly used beam focusing method based on distance information. Figure 2b This is a schematic diagram of the dipole cross-polarization of the transmitting antenna and the receiving antenna in the electromagnetic field. At the transmitting end, the distance between the sth antenna array element and the coordinate origin vector is d s , and sends electromagnetic waves. At the observation point d, the observed electromagnetic wave vector distance is dd s Therefore, the vector electromagnetic field (Electric Field) of the near-field region of the array antenna at the observation point d = (x, y, z) can be expressed as:

[0062]

[0063] Among them, E tx (d,d s ,p s ) is the distance between the transmitting array unit located at the origin of the coordinate system The vector electromagnetic wave at the location includes the transmitting array element pattern (Array Element Pattern), polarization and polarity p s Polarization, λ is the electromagnetic wavelength.

[0064] If the conjugate phase method is used, the electromagnetic wave intensity radiated by the array antenna at the observation point d = (x, y, z) in the near field region can be expressed as:

[0065]

[0066] in, A represents the complex excitation coefficient of the sth antenna array element. s is the amplitude, For phase.

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

[0068]

[0069] The phase of the complex excitation coefficient is

[0070] By processing the inner product of the electromagnetic waves of each receiving antenna array unit, the scalar electromagnetic field intensity E(d′) of the uth receiving antenna array unit is obtained. u )for:

[0071]

[0072] Among them, E rx (d′ u ,d s ,p′ u ) is the vector electromagnetic wave of the receiving array unit located at the origin of the coordinate system, including the receiving array unit mode and having polarity p′ u Polarization, d′ u is the vector distance between the uth receiving antenna array element and the receiving coordinate origin.

[0073] It should be noted that d′ uThe coordinates are the vector distances of the u-th receiving antenna array element from the receiving coordinate origin in the local coordinate system. By converting the local coordinate system to the global coordinate system, d′ u It can be expressed as d F +d′ u In this application, for the sake of simplicity, vector calculations are performed using a local coordinate system and do not involve coordinate system conversion.

[0074] It is worth noting that after calculating the inner product of the two vector electromagnetic fields, the received electromagnetic field strength becomes a scalar and can be simplified to:

[0075] [E tx (d′ u ,d s ,p s )·E rx (d′ u ,d s ,p′ u )]

[0076] =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 )

[0077] Among them, 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 transmitting and receiving ends respectively, and d u,s =d′ u -d s .

[0078] In practical applications, if the receiver feeds back its coordinates to the transmitter for beam focusing, then the focus d F Should be replaced with estimated focus Right now, And satisfy:

[0079]

[0080] in, is the estimated coordinate of the u-th receiving array antenna element, expressed in the local coordinate system.

[0081] Assume that the array antenna is a 16×16 array antenna with an element spacing of λ / 2, placed on the xz plane, the distance from the origin to the beam focus is r, and the zenith angle θ and azimuth angle φ are θ=π / 2 and φ=π / 2 respectively. Figure 2c The received power density for different emission angles and different beam focus points is shown. According to the conjugate phase method, the following observations are made:

[0082] The reactive near-field region is: 0λ≤reactive near-field region≤21.4λ;

[0083] The radiation near field area is: 21.4λ≤radiation near field area≤225λ.

[0084] The conjugate phase method can effectively F (equivalent to the distance r) focusing the electromagnetic field in the near and far fields.

[0085] The beam control method provided in the embodiments of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0086] See Figure 3 , Figure 3 This is a flow chart of a beam control method provided by an embodiment of the present application. The method can be executed by the transmitting end, such as Figure 3 As shown, the following steps are included:

[0087] Step 301: 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 unit, 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.

[0088] In this embodiment, each of the M first antenna blocks independently transmits a reference signal, and the reference signals transmitted by different first antenna blocks are mutually orthogonal. For example, the M first antenna blocks include antenna blocks a1 to a3, the reference signal transmitted by antenna block a1 is orthogonal to the reference signal transmitted by antenna block a2, the reference signal transmitted by antenna block a1 is orthogonal to the reference signal transmitted by antenna block a3, and the reference signal transmitted by antenna block a2 is orthogonal to the reference signal transmitted by antenna block a3.

[0089] The antenna block may include at least one antenna unit. It should be noted that when the antenna block includes one antenna unit, the antenna block may also be referred to as an antenna unit. When the antenna block includes at least two antenna units, the antenna block may also be referred to as an antenna unit group. The at least two antenna units may be at least two adjacent antenna units in an antenna array.

[0090] The M first antenna blocks may be selected by the transmitting end from the K antenna blocks, or may be selected by the receiving end from the K antenna blocks and fed back to the transmitting end, where K is an integer greater than or equal to M. For example, Figure 4 As shown, the antenna at the transmitting end is composed of a 4×4 antenna array, wherein the antenna units at the four corners of the array antenna serve as the first antenna block and transmit reference signals.

[0091] It should be noted that the first antenna block may also be referred to as a transmitting antenna block or an active antenna block, and the active antenna block may include at least one active antenna unit (Active Antenna Element / Unit), etc. The active antenna unit transmits a reference signal using at least one of an allocated time domain resource element (Resource Element) and a frequency domain resource element, while the inactive antenna unit (Inactive Antenna Element / Unit) corresponding to the active antenna unit does not transmit a reference signal.

[0092] It should also be noted that the array antenna unit in the embodiment of the present application is composed of an antenna unit and an RF chain. Generally speaking, the array antenna unit can also be replaced by an array antenna port, and the above-mentioned antenna unit can also be replaced by an antenna port. For convenience, the embodiment of the present application uses the antenna unit as an example for description.

[0093] The above-mentioned reference signals may include but are not limited to common reference signals (CRS), channel state information reference signals (CSI-RS), demodulation reference signals (DM-RS) or positioning reference signals (PRS).

[0094] The above-mentioned 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 of its second antenna blocks, or the receiving end can calculate the distance of each of its second antenna blocks relative to each of the first antenna blocks based on the reference signal received by each of its second antenna blocks and feed it back to the transmitting end so that the transmitting end can calculate the position of the beam focus point.

[0095] 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 relative to the local coordinate system of the receiving end or the global coordinate system, and the first target coordinate origin can be the coordinate origin of the local coordinate system of the receiving end or the coordinate origin of the global coordinate system. 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.

[0096] In some optional embodiments, in a near-field scenario, the transmitter may send a reference signal through the M first antenna blocks to calculate the position of the beam focus point. That is, when the distance between the transmitter and the receiver is close, the transmitter may send a reference signal through the M first antenna blocks to calculate the position of the beam focus point.

[0097] It should be noted that in near-field scenarios, position (e.g., angle, range) and attitude (e.g., rotation, displacement) measurements require relatively precise coordinates of the beam focus point. These coordinates can be used to derive the control beam direction and power, thereby reducing the misalignment probability with low overhead. Therefore, it is very important to use a reliable reference signal to obtain the receiving end's position information.

[0098] Step 302: The transmitting end obtains the position of the beam focus point.

[0099] Exemplarily, when the receiving end calculates the position of the beam focus point, the transmitting end may receive the position of the beam focus point from the receiving end. When the transmitting end calculates the position of the beam focus point, the transmitting end may receive the distances 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 distances of each second antenna block relative to each first antenna block. The second antenna block is the antenna block from which the receiving end receives the reference signal transmitted by the first antenna block. The second antenna block may include at least one antenna element.

[0100] It should be noted that in an embodiment of the present application, the number of antenna units included in the first antenna block may be the same as or different from the number of antenna units included in the second antenna block. For example, when the first antenna block includes at least two antenna units, the second antenna block may include one antenna unit.

[0101] Step 303: The transmitting end performs beam focusing according to the position of the beam focusing point.

[0102] Exemplarily, the transmitting end may perform beam focusing using a conjugate phase method based on the position of the beam focusing point.

[0103] In an embodiment of the present application, the transmitting end sends a reference signal through M first antenna blocks, and 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, and the reference signal is used to calculate the position of the beam focusing point, where M is an integer greater than or equal to 3; the transmitting end obtains the position of the beam focusing point; the transmitting end performs beam focusing according to the position of the beam focusing point, that is, the embodiment of the present application locates the position of the beam focusing point on the receiving end side based on the reference signals independently sent by the M antenna blocks of a single transmitting end, which is conducive to accurately locating the position of the beam focusing point.

[0104] Optionally, the M first antenna blocks are M antenna blocks whose polygonal perimeter is the longest among any M antenna blocks among the K antenna blocks of the transmitting end;

[0105] or,

[0106] 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;

[0107] Wherein, K is an integer greater than or equal to M.

[0108] In this embodiment, the perimeter of the polygon formed by the above-mentioned 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 above-mentioned M first antenna blocks is greater than the area of ​​the polygon formed by any other M antenna blocks in the K antenna blocks. This can make the difference between the distances measured based on the reference signals sent by different first antenna blocks larger, which is conducive to more accurate positioning of the beam focus point.

[0109] The following examples are given for different situations

[0110] Case 1: The first antenna block is an antenna unit of an antenna array.

[0111] like Figures 5a to 5c As shown, an antenna block is an antenna unit of the antenna array, K=16, and the number of configured active antenna units is 3, 4, and 5 respectively. Figures 5a to 5c It can be seen that the longest polygon or its area formed by the coordinates of the active antenna units can be maximized.

[0112] In some optional embodiments, the number of active antenna units is 4, and they are located at the 4 corners of the array antenna.

[0113] Case 2: The first antenna unit is an antenna unit group of the antenna array, and each antenna unit group includes at least two antenna units that are adjacent to each other.

[0114] Since the power in each RF chain is limited, each antenna unit group can form a beam to enhance the power in the far and near fields. In this case, when the antenna unit group includes two antenna units, the position of the antenna unit group can be the middle position of the two antenna units. When the antenna unit group includes at least three antenna units, the position of the antenna unit group can be the center position of the polygon formed by all antenna units of the antenna unit group. For example, by sending a group reference signal, the electromagnetic wave intensity of the group reference signal can be enhanced. After the transmitting end receives feedback on the receiving end antenna coordinate information, or after the transmitting end receives delay information on the reference signals of different active antenna unit groups, the receiving end antenna coordinates, that is, the coordinates of the beam focus point, are calculated.

[0115] like Figure 5d As shown, a first antenna block is an antenna element group of the antenna array, K=16, the reference signal is sent by 4 active antenna element groups, each active antenna element group is composed of 4 nearest antenna elements, and the 4 active antenna element groups are located at the 4 corners of the antenna array.

[0116] Optionally, at least two of the M first antenna blocks have different frequency domain resource densities of reference signals sent by the first antenna blocks;

[0117] or,

[0118] 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;

[0119] or,

[0120] Among the M first antenna blocks, at least two first antenna blocks send reference signals of different types.

[0121] In one embodiment, there are at least two first antenna blocks among the M first antenna blocks, and the frequency domain resource density of the reference signals sent by them is different. For example, a larger frequency domain resource density is configured for the reference signals sent by some first antenna blocks, and a smaller frequency domain resource density is configured for the reference signals sent by another part of the first antenna blocks. This is beneficial for saving resources while ensuring the measurement accuracy of the beam focusing point.

[0122] In another embodiment, there are at least two first antenna blocks among the M first antenna blocks, and the maximum distance ranges that can be measured by the reference signals sent by different first antenna blocks are different. For example, the maximum distance range that can be measured by the reference signals sent by some first antenna blocks is configured to be larger to ensure the distance measurement accuracy of beam focusing, and the maximum distance range that can be measured by the reference signals sent by another part of the first antenna blocks is configured to be smaller to reduce the overhead of reference signal resources.

[0123] In yet another embodiment, at least two of the M first antenna blocks transmit reference signals of different types. Exemplarily, the types of the reference signals may be classified based on frequency domain resource density or a maximum measurable distance range. This embodiment uses different first antenna blocks among the M first antenna blocks to transmit different types of reference signals, which facilitates flexible configuration of reference signals, for example, different frequency domain resource densities or different maximum distance ranges.

[0124] In some optional embodiments, there are at least two first antenna blocks among the above-mentioned M first antenna blocks, and the reference signals sent can meet at least two of the following conditions: different frequency domain resource density, different maximum measurable distance ranges, and different types. For example, the above-mentioned M first antenna blocks include first antenna blocks a1 to first antenna blocks a4, wherein the frequency domain resource density of the reference signal sent by the first antenna block a1 is greater than the frequency domain resource density of the reference signal sent by the first antenna block ai, and the maximum distance range that can be measured by the reference signal sent by the first antenna block ai is greater than the maximum distance range that can be measured by the first antenna block ai, and the value of i is 2, 3 or 4.

[0125] Optionally, different types of reference signals have different frequency domain resource densities;

[0126] or,

[0127] Different types of reference signals can measure different maximum distance ranges.

[0128] In some optional embodiments, different types of reference signals have different frequency domain resource densities, and different types of reference signals can measure different maximum distance ranges.

[0129] Optionally, the type of the reference signal includes an anchor reference signal and a non-anchor reference signal;

[0130] 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.

[0131] or,

[0132] 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.

[0133] Optionally, 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 satisfy the following relationship:

[0134] d lmax =ρ×d kmax ;

[0135] 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.

[0136] It should be noted that in the near-field scenario, since the distance between the transmitter and the receiver is relatively close, the design of the reference signal does not need to consider a larger maximum distance range (i.e., Maximum Distance Range or Maximum Range). However, the distance measurement granularity requirements for the transmitter and the receiver are relatively high. This is because a small distance difference error will also affect the measurement accuracy of the transmission angle, arrival angle, and receiver coordinates, thereby affecting the near-field 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. In other words, the resources used by the near-field reference signal can be achieved by reducing the maximum distance range.

[0137] The present embodiment is described below with reference to examples:

[0138] For example, Figure 4 As shown, the transmitting antenna consists of a 4×4 antenna array, with the four corner antenna elements acting as active antenna elements and transmitting reference signals. By processing the reference signals, the receiving or transmitting end can infer the location of the beam focus. Assume that the distances from the four active antenna elements to the beam focus are d1, d2, d3, and d4, respectively, forming four reference signal links.

[0139] In order to ensure the distance measurement granularity between the transmitter and receiver, the reference signals sent from the active antenna units must be distributed over a wide frequency bandwidth. This is because the minimum granularity of distance measurement Δd min is inversely proportional to the frequency bandwidth used, i.e., Where W is the frequency bandwidth and c0 is the speed of light. Therefore, to ensure the minimum granularity of distance measurement, the frequency bandwidth used by the reference signal needs to be maximized, while the sparseness of the reference signal in the spectrum can be relatively reduced.

[0140] Taking the Orthogonal Frequency Division Multiplexing (OFDM) system as an example, in the frequency domain, every N ch Resource elements configure a reference signal. ch is the number of subcarriers between two adjacent reference signals, and Δf is the subcarrier spacing. Therefore, the maximum distance range can be expressed as:

[0141]

[0142] The following is an explanation of unequal resource reference signals for maximum distance range. Among them, unequal resource reference signals refer to at least two types of reference signals sent by different antenna blocks. Different types of reference signals can measure different maximum distance ranges, that is, different types of reference signals have different maximum distance measurement range capabilities. Among them, the reference signal that can measure the largest maximum distance range is called the anchor reference signal (Anchor RS), and the remaining reference signals are called non-anchor reference signals (Non-anchor RS). The density of anchor reference signals on frequency domain resources is relatively large, and they have a larger maximum distance measurement range capability, while the density of non-anchor reference signals on frequency domain resources is relatively small, and they have a smaller maximum distance measurement range capability, that is, non-anchor reference signals can only provide the distance difference between different reference signal links.

[0143] It should be noted that ensuring at least one reference signal has a large maximum range capability is to ensure the distance dimension of near-field beam focusing. Furthermore, the distance measured from the first antenna block to the second antenna block (i.e., the distance from the transmitter to the receiver) can be used to determine whether the receiver is in the near-field or far-field region of the transmitter. Reducing the maximum range capability of other reference signals is intended to reduce reference signal resource overhead.

[0144] like Figure 4 As shown, the anchor reference signal is sent from the active antenna unit s1, while the non-anchor reference signals are sent from the active antenna unit s2, the active antenna unit s3 and the active antenna unit s4. Therefore, the reference signal sent from the active antenna unit s1 provides a larger maximum distance range d for the distance d1. lmax , while the reference signals sent from other inactive antenna units (i.e., active antenna unit s2, active antenna unit s3, and active antenna unit s4) provide smaller maximum distance ranges d2, d3, and d4, respectively. kmax , where d lmax =ρ×d kmax , ρ is the reference signal resource ratio, ρ is a positive number, and ρ≥1.

[0145] 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 can both be configured by higher-layer signaling, such as Radio Resource Control (RRC) signaling or Media Access Control-Control Element (MAC-CE) signaling. Exemplarily, 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 can be configured by the transmitting end and notified to the receiving end.

[0146] Optionally, the frequency domain resources of the above reference signal can be realized by setting the frequency domain resource interval parameter. If the frequency domain resource interval of the anchor reference signal is N anc , that is, every N anc Frequency domain resource elements send a reference signal, and the frequency domain resource interval of the non-anchor reference signal is N non-anc , that is, every N non-anc Frequency domain resource elements send a reference signal, then N anc , N non-anc and d lmax , d kmax The following relationship is satisfied:

[0147]

[0148] Among them, d lmax The maximum distance range that the anchor reference signal can measure, d kmax Indicates the maximum distance range that can be measured by non-anchor reference signals.

[0149] For example, Figure 6a As shown, the reference signal resource ratio is ρ=2, the number of subcarriers of the frequency domain resource is N, N=16, N anc =2, N non-anc =4, so we can deduce d lmax =2d kmax .

[0150] Optionally, frequency domain resources of a reference signal 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;

[0151] or,

[0152] 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.

[0153] In this embodiment, the frequency domain resources that are evenly distributed or the frequency domain resources with equal resource element intervals can also be called frequency domain resources in a regular reference signal format. Figure 6a As shown, the frequency domain resources of the anchor reference signal and the non-anchor reference signal are equally allocated frequency domain resources or frequency domain resources with equal resource element intervals, wherein the resource element intervals of the frequency domain resources of the anchor reference signal are both N anc The resource element interval of the frequency domain resources of the non-anchor reference signal is N non-anc .

[0154] The above-mentioned unequally distributed frequency domain resources or frequency domain resources with unequal resource element intervals can also be called frequency domain resources with irregular reference signal format. Figure 6b As shown, 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, wherein the minimum resource element interval of the frequency domain resource of the anchor reference signal is N anc The minimum resource element spacing of the frequency domain resources of the non-anchor reference signal is N non-anc .

[0155] In some optional embodiments, the use of a regular reference signal format or an irregular reference signal format may depend on the level of channel noise. Generally, the frequency domain resources required for a regular reference signal format are higher than those required for an irregular reference signal format. In other words, when the signal-to-noise ratio (SNR) is relatively high, the transmitter may use an irregular reference signal format to send the reference signal. The advantage of using an irregular reference signal format is that it reduces reference signal resource overhead, but this comes at the expense of range measurement accuracy.

[0156] Optionally, 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.

[0157] In this embodiment, ρ represents the resource ratio between the anchor reference signal and the non-anchor reference signal. Figure 6b As shown, the minimum resource element interval of the frequency domain resource of the anchor reference signal is N anc The minimum resource element spacing of the frequency domain resources of the non-anchor reference signal is N non-anc , then ρ is N anc With N non-anc ratio.

[0158] Optionally, the transmitting end obtains the position of the beam focus point, including:

[0159] The transmitting end receives the position of the beam focus point from the receiving end.

[0160] In this embodiment, the receiving end may calculate the position of the beam focus point based on the reference signal received by each second antenna block and transmit the calculated position to the transmitting end. For example, the receiving end may calculate the position of each second antenna block based on the reference signal received by each second antenna block and the position of each first antenna block, and further calculate the position of the beam focus point based on the position of each second antenna block.

[0161] In this embodiment, the receiving end calculates the position of the beam focus point based on the reference signals received by each second antenna block and feeds it back to the transmitting end, which helps to save the overhead of information feedback.

[0162] Optionally, before the transmitting end obtains the position of the beam focus point, the method further includes:

[0163] The transmitting end sends the position of each first antenna block in the M first antenna blocks to the receiving end.

[0164] In this embodiment, the transmitting end sends the position of each of 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. The coordinates of the first antenna block can be relative to the local coordinate system of the transmitting end or the global coordinate system, and the second target coordinate origin can be the coordinate origin of the local coordinate system of the transmitting end or the coordinate origin of the global coordinate system. The receiving end can then calculate the position of the beam focus based on the reference signal received by each second antenna block and the position of each first antenna block.

[0165] It should be noted that, when the first antenna block includes at least two antenna units, the position of the first antenna block can be determined based on the positions of the at least two antenna units. For example, when 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. When 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.

[0166] Optionally, the transmitting end obtains the position of the beam focus point, including:

[0167] 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;

[0168] 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;

[0169] The transmitting end calculates the position of the beam focus point according to the position of each second antenna block.

[0170] In this embodiment, the second antenna block may include at least one antenna unit. The second antenna block may also be called a receiving antenna block, which may include at least one receiving antenna unit.

[0171] 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. The coordinates of the second antenna block can be relative to a local coordinate system on the receiving end side, or relative to a global coordinate system, and 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.

[0172] In this embodiment, the transmitting end calculates the position of the beam focus point. The transmitting end receives the distance information of each second antenna block relative to each first antenna block from the receiving end, and calculates the position of the beam focus point 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 (for example, the vector distance d of each first antenna block relative to the second coordinate origin). s , the second coordinate origin is the coordinate origin of the local coordinate system on the transmitting end side), calculate the position of each of the second antenna blocks (for example, the vector distance of the second antenna block relative to the first coordinate origin The first coordinate origin may be the coordinate origin of the local coordinate system on the receiving end side), and the position of the beam focus point is calculated according to the position of each second antenna block. For example, the average value of the vector distance of each second antenna block relative to the first coordinate origin is used as the coordinate of the beam focus point, that is:

[0173]

[0174] in, represents the coordinates of the beam focus point, represents the vector distance of the second antenna block relative to the origin of the first coordinate system, and N represents the number of the second antenna blocks.

[0175] It should be noted that, if 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 based on 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 based on the positions of all antenna elements in the second antenna block. If the first antenna block includes at least two antenna elements, the position of the first antenna block can be determined based on the positions of all antenna elements in the first antenna block.

[0176] The following combination Figure 7 Let's take an example:

[0177] Figure 7A schematic diagram of transmitting a reference signal from an active antenna unit provided in an embodiment of the present application, wherein the transmitting array antenna is composed of K array antenna units, i.e., K=16. The four antenna units from the four corners of the transmitting array antenna are configured as active antenna units, represented by indexes s1, s2, s3, and s4. Active antenna unit s1, active antenna unit s2, active antenna unit s3, and active antenna unit s4 form a quadrilateral with the longest perimeter and the largest area. Figure 7 As shown, the transmitter sends the reference signal through the active antenna unit s1, the active antenna unit s2, the active antenna unit s3 and the active antenna unit s4. The following describes the following cases:

[0178] Case 1: The receiving end calculates the position of the beam focusing point, that is, the coordinates of the beam focusing point.

[0179] The processor at the receiving end calculates the vector distance of each receiving antenna unit relative to the first coordinate origin based on the reference signal received by each receiving antenna unit and the vector distance of each active antenna unit relative to the second coordinate origin. u∈[1,2,…,N]; at the same time, according to Calculate the coordinates of the beam focus point That is, the average receiving antenna unit coordinates, which can be calculated by the above formula (2) In getting Afterwards, the receiver can provide feedback To the sender.

[0180] Case 2: The transmitter calculates the position of the beam focus point, that is, the coordinates of the beam focus point.

[0181] The receiving end processor calculates the scalar distance of each receiving antenna unit relative to each active antenna unit based on the reference signal received by each receiving antenna unit, that is, and feedback To the sending end, where i=1,2,3,4. The sending end The vector distance of each receiving antenna unit relative to the first coordinate origin is calculated by summing the vector distance of each active antenna unit relative to the second coordinate origin Then we can calculate it by the above formula (2)

[0182] It should be noted that the method for calculating the scalar distance or vector distance based on the path delay information between the antenna unit at the transmitting end and the antenna unit at the receiving end may refer to the existing positioning algorithm technology, and this embodiment does not limit this.

[0183] It should also be noted that in the near-field scenario, since the distance between the transmitter and the receiver is short, the attenuation loss is relatively low, and the impact of the surrounding reflectors is relatively low. Therefore, the coordinates of the beam focus point can be calculated without increasing the reference signal power or increasing the reference signal resources.

[0184] Optionally, the transmitting end performs beam focusing according to the position of the beam focusing point, including:

[0185] 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;

[0186] The distance between the first target antenna block and the beam focusing point is

[0187] The distance between the second target antenna block and the beam focusing point is Δd l,k =d k -(d l mod d kmax );

[0188] 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;

[0189] 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.

[0190] 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.

[0191] The following combination Figure 4 This embodiment is described with examples:

[0192] See also Figure 4The anchor reference signal is sent from the active antenna unit s1, while 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 .

[0193] 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 , see for example Figure 4 , l=1, that is, the receiving end is based on 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 , see for example Figure 4 , s=2,3,4, that is, the receiving end is based on 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.

[0194] 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-(d1modd 2max ), Δd 1,3 =d3-(d1modd 3max ), Δd 1,4 =d4-(d1mod d 4max ).

[0195] Therefore, the distance from the first target antenna block to the beam focus can be estimated as: For example, see Figure 4, the distance between the active antenna unit s1 and the beam focusing point is:

[0196] The distance from the second target antenna block to the beam focus point can be estimated as: For example, see Figure 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 focus point can be: The distance between the active antenna unit s4 and the beam focus point can be:

[0197] In some optional embodiments, the transmitting end may determine the distance between each third antenna block and the beam focus point based on the distance between each first antenna block and the beam focus point and the position of each third antenna block, wherein the distance between the third antenna block and the beam focus point may be And t≠s, the third antenna block is the antenna unit that does not send the reference signal among the antenna units of the transmitting end, for example, the third antenna block is the antenna block except the first antenna block among all the antenna blocks of the transmitting end.

[0198] Exemplarily, the transmitting end may perform beam focusing according to the position of the beam focusing point, the distance between each of the first antenna blocks and the beam focusing point, and the distance between each of the third antenna blocks and the beam focusing point.

[0199] Furthermore, the sender can The complex excitation coefficient w of the sth first antenna block is determined by the position (i.e., coordinates) of the beam focus point s ,in, A s is the amplitude, is the phase, s=1,2,…,K, is the coordinate of the beam focusing point, K is the number of antenna units at the transmitting end, Can include the above and Beam focusing can be achieved based on the aforementioned formula (1). For details, please refer to the aforementioned description of the conjugate phase method for the near field region, which will not be elaborated here.

[0200] Optionally, the method further includes:

[0201] 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.

[0202] In this embodiment, the receiving end may select an antenna block for transmitting a reference signal and feed it back to the transmitting end. For example, the transmitting end may first configure multiple antenna units for the receiving end. The receiving end may then select an active antenna unit based on the multiple antenna units configured for the receiving end and feed back information related to the selected active antenna unit to the transmitting end.

[0203] Optionally, the method further includes:

[0204] The sending end sends second information to the receiving end;

[0205] 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.

[0206] In this embodiment, the transmitting end configures the second information and sends it to the receiving end. Exemplarily, the transmitting end may send the second information to the receiving end via high-layer signaling, which may include RRC signaling or MAC-CE signaling.

[0207] In some optional embodiments, the transmitting end may send the second information and the position of each first antenna block in the M first antenna blocks to the receiving end through the same high-layer signaling.

[0208] See Figure 8 , Figure 8 This is a flow chart of a beam control method provided by an embodiment of the present application. The method can be executed by a network side device, such as Figure 8 As shown, the following steps are included:

[0209] Step 801: A receiving end receives, through each second antenna block of the receiving end, reference signals sent by M first antenna blocks of a transmitting end, where 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 signals are used to calculate the position of a beam focus point, where M is an integer greater than or equal to 3.

[0210] Step 802: The receiving end determines third information based on the reference signal received by each second antenna block, where the third information includes the 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 scalar distance or path delay information.

[0211] Step 803: The receiving end sends the third information to the sending end.

[0212] Exemplarily, the receiving end may send the third information to the transmitting end via physical layer signaling. For example, the physical layer signaling may include a physical downlink control channel (PDCCH).

[0213] Optionally, at least two of the M first antenna blocks have different frequency domain resource densities of reference signals sent by the first antenna blocks;

[0214] or,

[0215] 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;

[0216] or,

[0217] Among the M first antenna blocks, at least two first antenna blocks send reference signals of different types.

[0218] Optionally, different types of reference signals have different frequency domain resource densities;

[0219] or,

[0220] Different types of reference signals can measure different maximum distance ranges.

[0221] Optionally, the type of the reference signal includes an anchor reference signal and a non-anchor reference signal;

[0222] 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.

[0223] or,

[0224] 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.

[0225] Optionally, 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 satisfy the following relationship:

[0226] d lmax =ρ×d kmax ;

[0227] Among them, dlmax 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.

[0228] Optionally, frequency domain resources of a reference signal 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;

[0229] or,

[0230] 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.

[0231] Optionally, 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.

[0232] Optionally, the third information includes a position of the beam focus point, and the method further includes:

[0233] The receiving end receives a position of each first antenna block in the M first antenna blocks from the transmitting end;

[0234] The receiving end determines third information according to the reference signal received by each second antenna block, including:

[0235] 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;

[0236] The receiving end calculates the position of the beam focus point according to the position of each second antenna block.

[0237] Exemplarily, the receiving end can calculate the scalar distance of each second antenna block relative to each first antenna block based on the reference signal received by each second antenna block, and calculate the position of each second antenna block (for example, the vector distance of each second antenna block relative to the first coordinate origin) based on the scalar distance of each second antenna block relative to each first antenna block and the position of each first antenna block (for example, the vector distance of each first antenna block relative to the second coordinate origin). Then, based on the position of each second antenna block, the position of the beam focus point can be calculated using the above formula (2) and fed back to the transmitting 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 transmitting end side.

[0238] Optionally, the receiving end sending the third information to the sending end includes:

[0239] 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.

[0240] In this embodiment, when the receiving end is in the near-field area of ​​the beam transmitted by the transmitting end, the receiving end sends the third information to the transmitting end. That is, only in the near-field scenario, the receiving end determines the third information based on the reference signal received by each second antenna block, and sends the third information to the transmitting end.

[0241] Optionally, the method further includes:

[0242] In a case where the receiving end is in a far-field area of ​​the transmitting end, the receiving end sends a pre-coding matrix index (Pre-coding Matrix Indicator, PMI) to the transmitting end.

[0243] In this embodiment, when the receiving end is in the far-field area of ​​the beam transmitted by the transmitting end, the receiving end sends the PMI to the transmitting end. That is, in the far-field scenario, the receiving end does not feed back the third information.

[0244] Optionally, the method further includes:

[0245] 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.

[0246] Exemplarily, the distance between the first antenna block and the second antenna block can be compared with a threshold. If the distance between the first antenna block and the second antenna block is less than or equal to the threshold, the receiving end is determined to be in the near-field area of ​​the transmitting end; otherwise, the receiving end is determined to be in the far-field area of ​​the transmitting end. The threshold can be configured by the transmitting end through RRC signaling or notified through MAC-CE signaling.

[0247] Optionally, the method further includes:

[0248] The receiving end receives antenna unit configuration information from the transmitting end;

[0249] 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.

[0250] Optionally, the method further includes:

[0251] The receiving end receives second information from the sending end;

[0252] 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.

[0253] It should be noted that the implementation of this embodiment can be found in Figure 3 The relevant description of the illustrated embodiment is omitted here.

[0254] It should be noted that the beam steering method provided in the embodiments of the present application can be performed by a beam steering device, or a control module within the beam steering device for performing the beam steering method. In the embodiments of the present application, the beam steering device provided in the embodiments of the present application is described using the beam steering device performing the beam steering method as an example.

[0255] See Figure 9 , Figure 9 This is a structural diagram of a beam control device provided in an embodiment of the present application. Figure 9 As shown, the beam control device 900 includes:

[0256] A first transmitting module 901 is configured to transmit a reference signal through M first antenna blocks, where the reference signals transmitted by different antenna blocks in the M first antenna blocks are orthogonal to each other, and the antenna block includes at least one antenna element. The reference signal is used to calculate the position of a beam focus point, where M is an integer greater than or equal to 3;

[0257] An acquisition module 902 is configured to acquire the position of the beam focus point;

[0258] The beam focusing module 903 is configured to perform beam focusing according to the position of the beam focusing point.

[0259] Optionally, the M first antenna blocks are M antenna blocks whose polygonal perimeter is the longest among any M antenna blocks among the K antenna blocks of the transmitting end;

[0260] or,

[0261] 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;

[0262] Wherein, K is an integer greater than or equal to M.

[0263] Optionally, at least two of the M first antenna blocks have different frequency domain resource densities of reference signals sent by the first antenna blocks;

[0264] or,

[0265] 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;

[0266] or,

[0267] Among the M first antenna blocks, at least two first antenna blocks send reference signals of different types.

[0268] Optionally, different types of reference signals have different frequency domain resource densities;

[0269] or,

[0270] Different types of reference signals can measure different maximum distance ranges.

[0271] Optionally, the type of the reference signal includes an anchor reference signal and a non-anchor reference signal;

[0272] 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.

[0273] or,

[0274] 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.

[0275] Optionally, 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 satisfy the following relationship:

[0276] d lmax =ρ×d kmax ;

[0277] 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.

[0278] Optionally, frequency domain resources of a reference signal 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;

[0279] or,

[0280] 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.

[0281] Optionally, 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.

[0282] Optionally, the acquisition module is specifically configured to:

[0283] The position of the beam focus point is received from a receiving end.

[0284] Optionally, the device further comprises:

[0285] 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.

[0286] Optionally, the acquisition module is specifically configured to:

[0287] 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;

[0288] 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;

[0289] The position of the beam focus point is calculated according to the position of each of the second antenna blocks.

[0290] Optionally, the beam focusing module is specifically configured to:

[0291] performing beam focusing according to a position of the beam focusing point and a distance between each of the first antenna blocks and the beam focusing point;

[0292] The distance between the first target antenna block and the beam focusing point is

[0293] The distance between the second target antenna block and the beam focusing point is Δd l,k =d k -(d l mod d kmax );

[0294] 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;

[0295] 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.

[0296] Optionally, the device further comprises:

[0297] The receiving module is configured to receive first information from a receiving end, where the first information includes information of an antenna block selected by the receiving end for sending a reference signal.

[0298] Optionally, the device further comprises:

[0299] The third sending module is configured to send the second information to the receiving end;

[0300] 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.

[0301] The beam steering device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a network-side device, or a device other than a network-side device. For example, the network-side device can include, but is not limited to, the types of network-side devices 12 listed above. Other devices can be servers, network attached storage (NAS), etc., and are not specifically limited in the embodiments of the present application.

[0302] The beam control device provided in the embodiment of the present application can achieve Figure 3 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0303] See Figure 10 , Figure 10 This is a structural diagram of a transmission device provided in an embodiment of the present application. Figure 10 As shown, the transmission device 1000 includes:

[0304] A first receiving module 1001 is configured to receive, through each second antenna block of a receiving end, reference signals sent by M first antenna blocks of a transmitting end, 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 signals are used to calculate the position of a beam focus point, where M is an integer greater than or equal to 3;

[0305] A first determining module 1002 is configured to determine third information based on a 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;

[0306] The first sending module 1003 is configured to send the third information to the sending end.

[0307] Optionally, at least two of the M first antenna blocks have different frequency domain resource densities of reference signals sent by the first antenna blocks;

[0308] or,

[0309] 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;

[0310] or,

[0311] Among the M first antenna blocks, at least two first antenna blocks send reference signals of different types.

[0312] Optionally, different types of reference signals have different frequency domain resource densities;

[0313] or,

[0314] Different types of reference signals can measure different maximum distance ranges.

[0315] Optionally, the type of the reference signal includes an anchor reference signal and a non-anchor reference signal;

[0316] 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.

[0317] or,

[0318] 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.

[0319] Optionally, 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 satisfy the following relationship:

[0320] d lmax =ρ×d kmax ;

[0321] 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.

[0322] Optionally, frequency domain resources of a reference signal 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;

[0323] or,

[0324] 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.

[0325] Optionally, 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.

[0326] Optionally, the third information includes the position of the beam focus point, and the apparatus further includes:

[0327] A second receiving module is configured to receive a position of each of the M first antenna blocks from the transmitting end;

[0328] The first determining module is specifically configured to:

[0329] 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;

[0330] The position of the beam focus point is calculated according to the position of each of the second antenna blocks.

[0331] Optionally, the first sending module is specifically configured to:

[0332] When the receiving end is in the near field area of ​​the transmitting end, the third information is sent to the transmitting end.

[0333] Optionally, the device further comprises:

[0334] The second sending module is configured to send a precoding matrix index to the sending end when the receiving end is in a far-field area of ​​the sending end.

[0335] Optionally, the device further comprises:

[0336] The second determination module is used to determine the area where the receiving end is located according to the distance between the first antenna block and the second antenna block, where the area includes the near-field area of ​​the transmitting end and the far-field area of ​​the transmitting end.

[0337] Optionally, the device further comprises:

[0338] A second receiving module is used to receive antenna unit configuration information from the transmitting end;

[0339] The third sending module is configured to send first information to the transmitting end, where the first information includes information about the antenna block selected by the receiving end for sending the reference signal.

[0340] Optionally, the device further comprises:

[0341] A third receiving module, configured to receive second information from the sending end;

[0342] 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.

[0343] The transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal, or it can be other devices other than a terminal. For example, the network-side device can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0344] The transmission device provided in the embodiment of the present application can achieve Figure 8 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0345] Optional, such as Figure 11 As shown, an embodiment of the present application further provides a communication device 1100, including a processor 1101 and a memory 1102. The memory 1102 stores a program or instruction that can be run on the processor 1101. For example, when the communication device 1100 is a transmitting end, the program or instruction is executed by the processor 1101 to implement the various steps of the above-mentioned beam control method embodiment and can achieve the same technical effect. When the communication device 1100 is a receiving end, the program or instruction is executed by the processor 1101 to implement the various steps of the above-mentioned transmission method embodiment and can achieve the same technical effect. To avoid repetition, it is not repeated here.

[0346] The present application also provides a transmitting end, including a processor and a communication interface. The communication interface is configured to transmit a reference signal through M first antenna blocks, wherein the reference signals transmitted by different antenna blocks in the M first antenna blocks are mutually orthogonal. The antenna blocks include at least one antenna unit. The reference signal is used to calculate the position of a beam focus point, where M is an integer greater than or equal to 3. The processor is configured to obtain the position of the beam focus point. The processor is further configured to perform beam focusing based on the position of the beam focus point. This transmitting end embodiment corresponds to the above-mentioned transmitting end method embodiment. The various implementation processes and implementation methods of the above-mentioned method embodiment are applicable to this transmitting end embodiment and can achieve the same technical effects.

[0347] Specifically, the embodiment of the present application also provides a sending end. Figure 12 As shown, the transmitting end 1200 includes an antenna 1201, a radio frequency device 1202, a baseband device 1203, a processor 1204, and a memory 1205. Antenna 1201 is connected to radio frequency device 1202. In the uplink direction, radio frequency device 1202 receives information via antenna 1201 and sends the received information to baseband device 1203 for processing. In the downlink direction, baseband device 1203 processes the information to be transmitted and sends it to radio frequency device 1202. Radio frequency device 1202 processes the received information and then sends it through antenna 1201.

[0348] The method executed by the transmitting end in the above embodiment may be implemented in the baseband device 1203 , which includes a baseband processor.

[0349] The baseband device 1203 may include, for example, at least one baseband board on which a plurality of chips are arranged, such as Figure 12 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1205 via a bus interface to call the program in the memory 1205 to execute the network device operations shown in the above method embodiment.

[0350] The transmitting end may further include a network interface 1206, which is, for example, a Common Public Radio Interface (CPRI).

[0351] Specifically, the transmitting 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 execute Figure 9 The methods executed by the modules shown achieve the same technical effects, so they will not be described here to avoid repetition.

[0352] An embodiment of the present application also provides a receiving end, including a processor and a communication interface, wherein the communication interface is used to receive reference signals sent by M first antenna blocks of the transmitting end through each second antenna block of the receiving end, and the reference signals sent by different antenna blocks in the M first antenna blocks are orthogonal to each other, and the antenna block includes at least one antenna unit, 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 processor is used to determine third information based on the reference signal received by each second antenna block, and the third information includes the position of the beam focus point or the distance information of each second antenna block relative to each first antenna block, and the distance information includes scalar distance or path delay information; the communication interface is also used to send the third information to the transmitting end. This receiving end embodiment corresponds to the above-mentioned receiving end side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this receiving end embodiment and can achieve the same technical effect. Specifically, Figure 13 A schematic diagram of the hardware structure of a receiving end to implement an embodiment of the present application.

[0353] The receiving end 1300 includes but is not limited to: 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 at least some of the components of the processor 1310.

[0354] Those skilled in the art will understand that the receiving end 1300 may also include a power supply (such as a battery) to power each component, and the power supply may be logically connected to the processor 1310 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 13 The receiving end structure shown in the figure does not constitute a limitation on the receiving end. The receiving end may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0355] It should be understood that in an embodiment of the present application, the input unit 1304 may include a graphics processing unit (GPU) 13041 and a microphone 13042, and the graphics processing unit 13041 processes the image data of a static picture or 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 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1307 includes a touch panel 13071 and at least one of other input devices 13072. The touch panel 13071 is also called a touch screen. The touch panel 13071 may include two parts: a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0356] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1301 may transmit the data to the processor 1310 for processing. Furthermore, the RF unit 1301 may send uplink data to the network-side device. Typically, the RF unit 1301 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0357] The memory 1309 can be used to store software programs or instructions and various data. The memory 1309 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1309 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1309 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0358] Processor 1310 may include one or more processing units. Optionally, processor 1310 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1310.

[0359] The radio frequency unit 1301 is configured to receive, 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.

[0360] Processor 1310 is configured to determine third information based on a 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.

[0361] The radio frequency unit 1301 is further configured to send the third information to the transmitting end.

[0362] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the aforementioned method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0363] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned beam control method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0364] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0365] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned beam control method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0366] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0367] An embodiment of the present application further provides a computer program / program product, which includes a computer program or computer instructions. The computer program or computer instructions are executed by at least one processor to implement the various processes of the above-mentioned beam control method embodiment and can achieve the same technical effect. To avoid repetition, they are not repeated here.

[0368] The embodiment of the present application also provides a transmission system, including: a sending end and a receiving end, wherein the sending end is used to perform the following Figure 3 And each process of each method embodiment above, the receiving end is used to perform the following Figure 8 And each process of each method embodiment mentioned above, and can achieve the same technical effect, to avoid repetition, no further details are given here.

[0369] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0370] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0371] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A beam steering method, characterized in that: include: 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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 =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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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 mod d kmax ); 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, characterized in that The method further comprises: 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, characterized in that The method further comprises: 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, characterized in that: include: 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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 =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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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, wherein The method further comprises: 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, characterized in that The method further comprises: 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, characterized in that The method further comprises: 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, characterized in that The method further comprises: 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 control device, characterized in that: include: 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 device according to claim 28, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that The acquisition module is specifically used for: The position of the beam focus point is received from a receiving end.

33. The device according to claim 32, characterized in that The device further comprises: 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, characterized in that 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, characterized in that: include: 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 device according to claim 35, characterized in that 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, characterized in that: The method comprises 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, characterized in that: The method comprises 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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