Beam broadening methods, apparatuses, and storage media

Abstract

The disclosure provides a beam broadening method, device and storage medium, and relates to the technical field of communication. The specific implementation scheme is: obtaining an initial width value, a target width value of a first beam and an antenna array corresponding to the initial width value; determining a broadening coefficient based on the ratio between the target width value and the initial width value; splitting the antenna array based on the broadening coefficient to obtain a plurality of antenna subarrays; splitting the first frequency domain resource corresponding to the first beam based on the broadening coefficient to determine the second frequency domain resource corresponding to each antenna subarray; and transmitting the signal carried by the second frequency domain resource corresponding to the antenna subarray by using each antenna element in each antenna subarray. Thus, by using part of the antenna to carry part of the frequency component, the radiation power of each antenna element in each antenna subarray at the corresponding frequency point is improved, so that the power loss on part of the antenna is avoided on the basis of realizing beam broadening, and the full radiation power of the base station is ensured.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a beamwidth method, apparatus and storage medium. Background Technology

[0002] Typically, in 5G NR (New Radio), the introduction of very large MIMO antennas significantly improves spectral and energy efficiency. While more antennas allow NR base stations to have higher gain radiating beams, a single high-gain narrow beam can only cover a portion of the area. For common channels requiring coverage of the entire cell, more beams are needed for complete coverage. In certain scenarios, such as those where a single beam needs to cover a wider area, it is necessary to widen the beam.

[0003] In related technologies, most common beamwidth methods are lossy beamwidths, which sacrifice some of the usable power of the channels, thus reducing the overall radiated power of the base station. Therefore, it is crucial to find a way to broaden the beam without sacrificing the base station's radiated power. Summary of the Invention

[0004] This disclosure proposes a beam stretching method, apparatus, and storage medium. The specific details are as follows: One embodiment of this disclosure proposes a beam broadening method, including: Obtain the initial width value, target width value, and antenna array corresponding to the initial width value of the first beam; The widening coefficient is determined based on the ratio between the target width value and the initial width value; Based on the stretching factor, the antenna array is divided to obtain multiple antenna subarrays; Based on the broadening factor, the first frequency domain resources corresponding to the first beam are divided to determine the second frequency domain resources corresponding to each antenna subarray; Each antenna element in each of the antenna subarrays transmits a signal carried by the second frequency domain resource corresponding to the antenna subarray.

[0005] Optionally, determining the widening coefficient based on the ratio between the target width value and the initial width value includes: If the ratio between the target width value and the initial width value is an integer, the ratio is determined as the widening factor; or, If the ratio between the target width value and the initial width value is not an integer, the ratio is rounded up or down to determine the expansion coefficient.

[0006] Optionally, when the ratio between the target width value and the initial width value is not an integer, rounding the ratio up or down to determine the widening coefficient includes: If the ratio between the target width value and the initial width value is a non-integer value that is greater than 1 and less than 2, the ratio is rounded up to determine the widening factor; or, If the ratio between the target width value and the initial width value is a non-integer greater than 2, the ratio is rounded up or down to determine the widening coefficient.

[0007] Optionally, determining the widening coefficient based on the ratio between the target width value and the initial width value includes: When the initial width value includes a first initial width value in a first direction and a second initial width value in a second direction, and the target width value includes a first target width value in the first direction and a second target width value in the second direction, a first widening coefficient is determined based on the ratio between the first target width value and the first initial width value. The second widening coefficient is determined based on the ratio between the second target width value and the second initial width value; The product of the first expansion coefficient and the second expansion coefficient is determined as the expansion coefficient.

[0008] Optionally, the step of dividing the first frequency domain resources corresponding to the first beam based on the broadening coefficient to determine the second frequency domain resources corresponding to each antenna subarray includes: Based on the broadening factor, the first frequency domain resources corresponding to each type of the first beam are divided to determine multiple second frequency domain resources corresponding to each type.

[0009] Optionally, after transmitting the signal carried by the second frequency domain resource corresponding to each antenna element in each of the antenna subarrays, the method further includes: The wavelength of the first beam, the first spacing between two adjacent antenna elements in a first direction and the second spacing between two adjacent antenna elements in a second direction in any antenna subarray, the first position and first directional angle of each antenna element in the first direction in the first antenna subarray, and the second position and second directional angle in the second direction are determined. Based on the first position and first directional angle of each antenna element, the wavelength of the first beam and the first spacing, a first weight of each antenna element in the first direction is determined; A second weight of each antenna element in the second direction is determined based on the second position and second directional angle of each antenna element, the wavelength of the first beam, and the second spacing. The weight matrix corresponding to any antenna subarray is determined based on the first weight of each antenna element in the first direction and the second weight in the second direction.

[0010] Optionally, determining the weight matrix corresponding to any antenna subarray based on the first weight of each antenna element in the first direction and the second weight in the second direction includes: The product of the first weight and the second weight of each antenna element in any antenna subarray is determined as the weight of each antenna element; Based on the weight of each antenna element in any antenna subarray, the weight matrix corresponding to any antenna subarray is determined.

[0011] Optionally, after determining the weight matrix corresponding to any of the antenna subarrays, the method further includes: Based on the weight matrix corresponding to any antenna subarray and the ratio between the target width value and the initial width value, the power weight matrix corresponding to any antenna subarray is determined.

[0012] Another embodiment of this disclosure provides a beamscaling device, which includes a memory, a transceiver, and a processor; A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Obtain the initial width value, target width value, and antenna array corresponding to the initial width value of the first beam; The widening coefficient is determined based on the ratio between the target width value and the initial width value; Based on the stretching factor, the antenna array is divided to obtain multiple antenna subarrays; Based on the broadening factor, the first frequency domain resources corresponding to the first beam are divided to determine the second frequency domain resources corresponding to each antenna subarray; Each antenna element in each of the antenna subarrays transmits a signal carried by the second frequency domain resource corresponding to the antenna subarray.

[0013] Optionally, the processor is specifically configured to perform the following operations: If the ratio between the target width value and the initial width value is an integer, the ratio is determined as the widening factor; or, If the ratio between the target width value and the initial width value is not an integer, the ratio is rounded up or down to determine the expansion coefficient.

[0014] Optionally, the processor is specifically configured to perform the following operations: If the ratio between the target width value and the initial width value is a non-integer value that is greater than 1 and less than 2, the ratio is rounded up to determine the widening factor; or, If the ratio between the target width value and the initial width value is a non-integer greater than 2, the ratio is rounded up or down to determine the widening coefficient.

[0015] Optionally, the processor is specifically configured to perform the following operations: When the initial width value includes a first initial width value in a first direction and a second initial width value in a second direction, and the target width value includes a first target width value in the first direction and a second target width value in the second direction, a first widening coefficient is determined based on the ratio between the first target width value and the first initial width value. The second widening coefficient is determined based on the ratio between the second target width value and the second initial width value; The product of the first expansion coefficient and the second expansion coefficient is determined as the expansion coefficient.

[0016] Optionally, the processor is specifically configured to perform the following operations: Based on the broadening factor, the first frequency domain resources corresponding to each type of the first beam are divided to determine multiple second frequency domain resources corresponding to each type.

[0017] Optionally, the processor is specifically configured to perform the following operations: The wavelength of the first beam, the first spacing between two adjacent antenna elements in a first direction and the second spacing between two adjacent antenna elements in a second direction in any antenna subarray, the first position and first directional angle of each antenna element in the first direction in the first antenna subarray, and the second position and second directional angle in the second direction are determined. Based on the first position and first directional angle of each antenna element, the wavelength of the first beam and the first spacing, a first weight of each antenna element in the first direction is determined; A second weight of each antenna element in the second direction is determined based on the second position and second directional angle of each antenna element, the wavelength of the first beam, and the second spacing. The weight matrix corresponding to any antenna subarray is determined based on the first weight of each antenna element in the first direction and the second weight in the second direction.

[0018] Optionally, the processor is specifically configured to perform the following operations: The product of the first weight and the second weight of each antenna element in any antenna subarray is determined as the weight of each antenna element; Based on the weight of each antenna element in any antenna subarray, the weight matrix corresponding to any antenna subarray is determined.

[0019] Optionally, the processor is specifically configured to perform the following operations: Based on the weight matrix corresponding to any antenna subarray and the ratio between the target width value and the initial width value, the power weight matrix corresponding to any antenna subarray is determined.

[0020] Another embodiment of this disclosure provides a beam widening device, comprising: The first acquisition module is used to acquire the initial width value, the target width value, and the antenna array corresponding to the initial width value of the first beam; The first determining module is used to determine the widening coefficient based on the ratio between the target width value and the initial width value; The second acquisition module is used to divide the antenna array based on the stretching coefficient to obtain multiple antenna subarrays; The second determining module is used to divide the first frequency domain resources corresponding to the first beam based on the broadening coefficient, so as to determine the second frequency domain resources corresponding to each antenna subarray. The control module is used to transmit signals carried by the second frequency domain resources corresponding to each antenna element in each of the antenna subarrays.

[0021] Optionally, the first determining module includes: The first determining unit is configured to determine the ratio between the target width value and the initial width value as a widening coefficient when the ratio is an integer. The second determining unit is used to determine the widening coefficient by rounding the ratio between the target width value and the initial width value up or down when the ratio is not an integer.

[0022] Optionally, the second determining unit is specifically used for: If the ratio between the target width value and the initial width value is a non-integer value that is greater than 1 and less than 2, the ratio is rounded up to determine the widening factor; or, If the ratio between the target width value and the initial width value is a non-integer greater than 2, the ratio is rounded up or down to determine the widening coefficient.

[0023] Optionally, the first determining module is specifically used for: When the initial width value includes a first initial width value in a first direction and a second initial width value in a second direction, and the target width value includes a first target width value in the first direction and a second target width value in the second direction, a first widening coefficient is determined based on the ratio between the first target width value and the first initial width value. The second widening coefficient is determined based on the ratio between the second target width value and the second initial width value; The product of the first expansion coefficient and the second expansion coefficient is determined as the expansion coefficient.

[0024] Optionally, the second determining module is specifically used for: Based on the broadening factor, the first frequency domain resources corresponding to each type of the first beam are divided to determine multiple second frequency domain resources corresponding to each type.

[0025] Optionally, a third determining module may also be included, for: The wavelength of the first beam, the first spacing between two adjacent antenna elements in a first direction and the second spacing between two adjacent antenna elements in a second direction in any antenna subarray, the first position and first directional angle of each antenna element in the first direction in the first antenna subarray, and the second position and second directional angle in the second direction are determined. Based on the first position and first directional angle of each antenna element, the wavelength of the first beam and the first spacing, a first weight of each antenna element in the first direction is determined; A second weight of each antenna element in the second direction is determined based on the second position and second directional angle of each antenna element, the wavelength of the first beam, and the second spacing. The weight matrix corresponding to any antenna subarray is determined based on the first weight of each antenna element in the first direction and the second weight in the second direction.

[0026] Optionally, the third determining module is specifically used for: The product of the first weight and the second weight of each antenna element in any antenna subarray is determined as the weight of each antenna element; Based on the weight of each antenna element in any antenna subarray, the weight matrix corresponding to any antenna subarray is determined.

[0027] Optionally, the third determining module is further configured to: Based on the weight matrix corresponding to any antenna subarray and the ratio between the target width value and the initial width value, the power weight matrix corresponding to any antenna subarray is determined.

[0028] Another embodiment of this disclosure provides a processor-readable storage medium storing a computer program for causing the processor to perform the beam widening method described in the above embodiments.

[0029] According to another aspect of this disclosure, a computer program product is provided that, when an instruction processor in the computer program product is executed, performs the aforementioned beam widening method.

[0030] The beam widening method, apparatus, and storage medium disclosed herein can first obtain the initial width value, target width value, and antenna array corresponding to the initial width value of a first beam. Then, based on the ratio between the target width value and the initial width value, a widening coefficient can be determined. Subsequently, based on the widening coefficient, the antenna array can be divided to obtain multiple antenna subarrays. Based on the widening coefficient, the first frequency domain resource corresponding to the first beam can be divided to determine the second frequency domain resource corresponding to each antenna subarray. Then, each antenna element in each antenna subarray can be used to transmit the signal carried by the second frequency domain resource corresponding to the antenna subarray. Therefore, based on the beamwidth factor, the antenna array and the first frequency domain resources corresponding to the first beam can be divided to obtain multiple antenna subarrays and the second frequency domain resources corresponding to each antenna subarray. Then, each antenna element in each antenna subarray can be used to transmit only the signal carried by the second frequency domain resources corresponding to the antenna subarray. That is, by having some antennas carry only some frequency components, the radiation power of each antenna element in each antenna subarray at the corresponding frequency point is improved. Thus, while achieving beamwidth, power loss on some antennas is avoided, ensuring the radiation power of the base station.

[0031] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0032] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 A schematic flowchart illustrating a beam stretching method provided in an embodiment of this disclosure; Figure 2A schematic diagram illustrating frequency domain resource partitioning provided in an embodiment of this disclosure; Figure 3 A schematic flowchart illustrating another beam stretching method provided in this embodiment of the disclosure; Figure 4 A schematic diagram of the topology of a 64TR antenna provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram of an antenna array segmentation provided in an embodiment of the present disclosure; Figure 6 A schematic flowchart illustrating another beam stretching method provided in this embodiment of the disclosure; Figure 7 This is a schematic diagram of the structure of a beam stretching device provided in an embodiment of the present disclosure; Figure 8 This is a schematic diagram of a beam stretching device provided in an embodiment of the present disclosure. Detailed Implementation

[0033] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0034] Typically, in 5G NR, the introduction of very large MIMO antennas means that a single high-gain narrow beam can only cover a portion of the area. For common channels requiring coverage of the entire cell, more beams are needed for complete coverage. In certain scenarios, such as when a single beam needs to cover a wider area, it is necessary to broaden the beam. Common beambending methods in related technologies are often lossy beambending, which involves sacrificing some of the available power of the channels, thus reducing the overall radiated power of the base station. Based on this, the present disclosure provides a beamwidth method. Based on the beamwidth coefficient, the antenna array and the first frequency domain resources corresponding to the first beam are divided to obtain multiple antenna subarrays and the second frequency domain resources corresponding to each antenna subarray. Then, each antenna element in each antenna subarray can be used to transmit only the signal carried by the second frequency domain resources corresponding to the antenna subarray. That is, by having some antennas carry only some frequency components, the radiation power of each antenna element in each antenna subarray at the corresponding frequency point is improved. Thus, while achieving beamwidth, power loss on some antennas is avoided, ensuring the radiation power of the base station.

[0035] The beam-scaling method, apparatus, computer device, and storage medium of embodiments of the present disclosure are described below with reference to the accompanying drawings.

[0036] Figure 1 This is a flowchart illustrating a beam widening method provided in an embodiment of the present disclosure.

[0037] The network device disclosed herein may be a base station. A base station may include multiple cells providing services to terminal devices. Depending on the specific application, a base station may also be called an access point, or a device in an access network that communicates with wireless terminal devices via one or more sectors on the air interface, or other names. The network device may be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network equipment involved in this disclosure can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA) system, a NodeB in a Wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next-generation 5G network architecture, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in this disclosure. In some network structures, the base station may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, and the Centralized Unit and Distributed Unit may be geographically separated.

[0038] Terminal devices can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The name of the terminal device may differ in different systems; for example, in a 5G system, the terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices. They exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but this is not limited to these terms in the embodiments disclosed herein.

[0039] like Figure 1 As shown, the beam broadening method includes: Step 101: Obtain the initial width value, target width value, and antenna array corresponding to the initial width value of the first beam.

[0040] The first beam can be the beam to be beam-widened. The initial width value can be the standard width value corresponding to the first beam, or any width value, etc.; the target width value can be the widened width value corresponding to the first beam, etc., and this disclosure does not limit it.

[0041] In addition, the antenna array can be a dual-polarized antenna element, that is, it includes two polarization directions; or it can be a single-polarized antenna element, etc., and this disclosure does not limit it.

[0042] It is understood that the first beam can be a radiation beam from any common channel, or any beam, etc. For example, it can be an SSB (synchronization signal and physical boardcast channel block) beam; or a CSI-RS (channel state information-reference signal) beam; or a TRS (tracking reference signal) beam; or a CRS (cell reference signal) beam, etc. This disclosure does not limit it in this way.

[0043] Step 102: Determine the widening coefficient based on the ratio between the target width value and the initial width value.

[0044] For example, if the first beam is an SSB beam, and the initial width is 15 degrees and the target width is 30 degrees, then the widening factor can be determined to be "2"; or if the initial width is 15 degrees and the target width is 60 degrees, then the widening factor can be determined to be "4", and so on. This disclosure does not limit this.

[0045] Step 103: Based on the stretching factor, the antenna array is divided into multiple antenna subarrays.

[0046] Understandably, after determining the broadening factor, the antenna array corresponding to the initial width value of the first beam can be divided based on the broadening factor. For example, the antenna array can be divided evenly to obtain multiple antenna subarrays.

[0047] For example, if the stretch factor is 2 and there are 8 antenna elements in the antenna array, then the antenna array can be divided into 2 antenna subarrays, each containing 4 antenna elements. Alternatively, if the stretch factor is 8 and there are 64 antenna elements in the antenna array, the antenna array can be divided into 8 antenna subarrays, each containing 8 antenna elements, and so on. This disclosure does not limit the scope of the invention.

[0048] Step 104: Based on the broadening factor, the first frequency domain resources corresponding to the first beam are divided to determine the second frequency domain resources corresponding to each antenna subarray.

[0049] Understandably, the more antenna elements a synthesized beam has, the narrower the synthesized beam may be; doubling the number of antenna elements will halve the width of the synthesized beam; conversely, halving the number of antenna elements will halve the width of the synthesized beam.

[0050] Therefore, in this embodiment of the present disclosure, after determining the broadening factor, the first frequency domain resources corresponding to the first beam can be divided based on the broadening factor. For example, the first frequency domain resources can be uniformly divided to determine multiple second frequency domain resources. These multiple frequency domain resources can correspond to multiple antenna subarrays. The antenna elements included in the antenna subarray are some of the antenna elements in the antenna array, thereby reducing the number of antenna elements for synthesizing the first beam. Correspondingly, the beamwidth of the synthesized first beam is also broadened, and the shape of the broadened beam is also guaranteed, etc. This disclosure does not limit this aspect.

[0051] For example, if the first beam is an SSB beam, it can occupy a fixed 20 PRBs (physical resource blocks) of frequency domain resources, meaning the first frequency domain resource is 20 PRBs. If the broadening factor is 4, then the above 20 PRBs of frequency domain resources can be divided into 4 parts, each containing 5 PRBs of frequency domain resources, meaning the second frequency domain resource is 5 PRBs of frequency domain resources. If there are 4 antenna subarrays, then each antenna subarray corresponds to 5 PRBs of frequency domain resources.

[0052] Alternatively, a comb-like approach can be used to divide the first frequency domain resources corresponding to the first beam to determine the second frequency domain resources corresponding to each antenna subarray.

[0053] For example, in such Figure 2 In the frequency domain resource partitioning diagram shown, if the broadening factor is 2, then the first frequency domain resource corresponding to the first beam can be divided into two equal parts, such as... Figure 2 (a) shows the second frequency domain resource 1 and the second frequency domain resource 2. Alternatively, if the broadening factor is 4, then the first frequency domain resource corresponding to the first beam can be divided into four equal parts, such as... Figure 2 (b) Second frequency domain resources 3, 4, 5 and 6.

[0054] It should be noted that the above examples are merely illustrative and should not be construed as limiting the first beam, first frequency domain resources, stretching factor, antenna subarray, and second frequency domain resources in the embodiments of this disclosure.

[0055] Optionally, when dividing the first frequency domain resources, the division can be performed at the single frequency point level or at the frequency domain resource block level, etc. This disclosure does not limit this.

[0056] Step 105: Using each antenna element in each antenna subarray, transmit the signal carried by the second frequency domain resource corresponding to the antenna subarray.

[0057] For example, if antenna subarray 1 corresponds to second frequency domain resource 1 and antenna subarray 2 corresponds to second frequency domain resource 2, and antenna subarray 1 includes antenna element 1, antenna element 2, antenna element 3 and antenna element 4, and antenna subarray 2 includes antenna element 5, antenna element 6, antenna element 7 and antenna element 8; second frequency domain resource 1 carries signal 1, and second frequency domain resource 2 carries signal 2, then signal 1 can be transmitted using antenna element 1, antenna element 2, antenna element 3 and antenna element 4; signal 2 can be transmitted using antenna element 5, antenna element 6, antenna element 7 and antenna element 8, etc., this disclosure does not limit this.

[0058] It is understandable that, since there is a correspondence between antenna subarrays and second frequency domain resources, different antenna subarrays may carry different signals carried by the corresponding second frequency domain resources. Therefore, in this embodiment, after determining the second frequency domain resources corresponding to each antenna subarray, each antenna element in each antenna subarray can transmit the signal carried by the second frequency domain resources corresponding to the antenna subarray. That is, by grouping antenna arrays to obtain multiple antenna subarrays, and by dividing the first frequency domain resources to obtain multiple second frequency domain resources, each antenna element in each antenna subarray can transmit only the signal carried by the second frequency domain resources corresponding to that antenna subarray. In other words, by having some antennas carry only a portion of the frequency components, beamwidth is achieved. Therefore, compared to an antenna array transmitting the signal carried by all the first frequency domain resources, each antenna element in each antenna subarray transmits the signal carried by a portion of the frequency domain resources, thus increasing the radiated power of each antenna element at the corresponding frequency point. This achieves beamwidth while avoiding power loss on some antennas, ensuring the radiated power of the base station.

[0059] In this embodiment, the initial width value, target width value, and antenna array corresponding to the initial width value of the first beam can be obtained first. Then, a beamwidth factor can be determined based on the ratio between the target width value and the initial width value. Based on the beamwidth factor, the antenna array can be divided to obtain multiple antenna subarrays. Furthermore, based on the beamwidth factor, the first frequency domain resources corresponding to the first beam can be divided to determine the second frequency domain resources corresponding to each antenna subarray. Then, each antenna element in each antenna subarray can transmit the signal carried by the second frequency domain resources corresponding to the antenna subarray. Thus, based on the beamwidth factor, the antenna array and the first frequency domain resources corresponding to the first beam can be divided to obtain multiple antenna subarrays and the second frequency domain resources corresponding to each antenna subarray. Then, each antenna element in each antenna subarray can transmit only the signal carried by the second frequency domain resources corresponding to the antenna subarray. That is, by having some antennas carry only some frequency components, the radiated power of each antenna element in each antenna subarray at the corresponding frequency point is increased. Therefore, while achieving beamwidth, power loss on some antennas is avoided, ensuring the radiated power of the base station.

[0060] Figure 3 This is a schematic flowchart of another beam widening method provided in an embodiment of the present disclosure.

[0061] like Figure 3 As shown, the beam broadening method includes: Step 301: Obtain the initial width value, target width value, and antenna array corresponding to the initial width value of the first beam.

[0062] Step 302: If the ratio between the target width value and the initial width value is an integer, the ratio is determined as the widening coefficient.

[0063] For example, if the target width is 30 degrees and the initial width is 15 degrees, the ratio between the two is 2, which is an integer. Then "2" can be used as the widening coefficient, etc. This disclosure does not limit this.

[0064] Step 303: If the ratio between the target width value and the initial width value is not an integer, the ratio is rounded up or down to determine the expansion coefficient.

[0065] Optionally, if the ratio between the target width value and the initial width value is a non-integer value that is greater than 1 and less than 2, the ratio can be rounded up to determine the widening coefficient.

[0066] For example, if the initial width is 10 degrees and the target width is 17 degrees, the ratio between the target width and the initial width is 1.7, which is between 1 and 2. Then, "1.7" can be rounded up, and the result of the rounding up, "2", can be determined as the widening coefficient, etc. This disclosure does not limit this.

[0067] Optionally, if the ratio between the target width value and the initial width value is a non-integer greater than 2, the ratio can be rounded up or down to determine the expansion coefficient.

[0068] For example, if the initial width is 10 degrees and the target width is 27 degrees, the ratio between the target width and the initial width is 2.7, which is a non-integer greater than 2. Then, "2.7" can be rounded up, and the result "3" can be used as the widening factor; or "2.7" can be rounded down, and the result "2" can be used as the widening factor, and so on. This disclosure does not limit this.

[0069] Therefore, in this embodiment of the present disclosure, when the ratio between the target width value and the initial width value is not an integer, the ratio can be rounded up or down to make the beamwidth factor greater than 1, thereby ensuring that the first beam is beamwidthed as much as possible.

[0070] It is understandable that when beambroadening the first beam, there may be a situation where the first beam is broadened in both the horizontal and vertical directions at the same time. In this case, the broadening coefficients in the two directions can be fused to obtain the broadening coefficient corresponding to the first beam.

[0071] Optionally, when the initial width value includes a first initial width value in the first direction and a second initial width value in the second direction, and the target width value includes a first target width value in the first direction and a second target width value in the second direction, a first widening coefficient can be determined based on the ratio between the first target width value and the first initial width value. Then, a second widening coefficient can be determined based on the ratio between the second target width value and the second initial width value. Finally, the product of the first widening coefficient and the second widening coefficient can be determined as the widening coefficient.

[0072] The first direction can be horizontal or vertical; the second direction can also be horizontal or vertical, and so on. For example, if the first direction is horizontal, the second direction can be vertical; or if the first direction is vertical, the second direction can be horizontal, and so on. This disclosure does not limit this.

[0073] For example, if the initial width value includes a first initial width value of 15 degrees in the first direction and a second initial width value of 6 degrees in the second direction, and the target width value includes a first target width value of 60 degrees in the first direction and a second target width value of 12 degrees, the first widening coefficient can be determined as "4" based on the ratio between "60 degrees" and "15 degrees", and the second widening coefficient can be determined as "2" based on the ratio between "12 degrees" and "6 degrees". Then, the product of the first widening coefficient "4" and the second widening coefficient "2" "8" can be determined as the widening coefficient.

[0074] It should be noted that the above examples are merely illustrative and should not be construed as limiting the first initial width value, second initial width value, first target width value, second target width value, and expansion coefficient of the embodiments of this disclosure.

[0075] Step 304: Based on the stretching factor, the antenna array is divided into multiple antenna subarrays.

[0076] For example, taking a 64TR (64 Transiver Receiver) antenna array as an example, we will briefly explain how to divide the antenna array into multiple antenna subarrays based on the stretching factor.

[0077] The topology of the 64TR antenna array can be as follows: Figure 4 As shown, Ant represents an antenna element, and Ant0, Ant1, ..., Ant31 represent the numbers of the dual-polarized antenna elements. Figure 4 It can be seen that the 64TR antenna array can be arranged in 4 rows and 8 columns. With the first direction being horizontal and the second direction being vertical, there are 8 antenna elements in the horizontal direction and 4 antenna elements in the vertical direction. If the first broadening factor is 2, then the 64TR antenna array can be divided into two antenna subarrays, where the four columns of antenna elements on the left constitute antenna subarray 1 and the four columns of antenna elements on the right constitute antenna subarray 2.

[0078] Alternatively, if the second broadening factor is 2, then the 64TR antenna array can be divided into two antenna subarrays. The top two rows of antenna elements constitute antenna subarray 1, that is, Ant16 to Ant31 constitute antenna subarray 1; the bottom two rows of antenna elements constitute antenna subarray 2, that is, Ant0 to Ant15 constitute antenna subarray 2.

[0079] Alternatively, the antenna array can be divided into subarrays to obtain a schematic diagram of the antenna subarrays, as shown below. Figure 5 As shown, for ease of explanation, the first broadening factor can be denoted as M and the second broadening factor as N.

[0080] With the first broadening factor M being 2 and the second broadening factor N being 1, dividing the antenna array can yield the following: Figure 5 Antenna subarrays 1 and 2 are shown in (a); or if the first broadening factor M is 4 and the second broadening factor N is 1, then dividing the antenna array can yield the following results: Figure 5 (b) shows four antenna subarrays, namely antenna subarray 3, antenna subarray 4, antenna subarray 5, and antenna subarray 6; or if the first broadening factor M is 2 and the second broadening factor N is 2, then dividing the antenna array can yield the following results: Figure 5 (c) shows four antenna subarrays, namely antenna subarray 7, antenna subarray 8, antenna subarray 9, and antenna subarray 10; or if the first broadening factor M is 4 and the second broadening factor N is 2, then dividing the antenna array can yield the following results: Figure 5 The eight antenna subarrays shown in (d) are antenna subarray 11, antenna subarray 12, antenna subarray 13, antenna subarray 14, antenna subarray 15, antenna subarray 16, antenna subarray 17 and antenna subarray 18.

[0081] It should be noted that the above examples are merely illustrative and should not be construed as limiting the first broadening factor, the second broadening factor, the number of antenna subarrays, etc., in the embodiments of this disclosure.

[0082] Step 305: Based on the broadening factor, the first frequency domain resources corresponding to each type of the first beam are divided to determine multiple second frequency domain resources corresponding to each type.

[0083] The first frequency domain resources corresponding to the first beam may contain one type of frequency domain resources or multiple types of frequency domain resources. In the case where the first frequency domain resources contain multiple types of frequency domain resources, the first frequency domain resources can be divided according to type to determine multiple second frequency domain resources corresponding to each type.

[0084] For example, when the first beam is an SSB beam, since the SSB is composed of three parts: PSS (primary synchronization signals), SSS (secondary synchronization signals), and PBCH (physical boardcast channel), the PSS, SSS, and PBCH occupy different PRB frequency domain resources. For example, with a broadening factor of 4, the PRB frequency domain resources corresponding to the PSS can be divided into four equal parts: frequency domain resource 1, frequency domain resource 2, frequency domain resource 3, and frequency domain resource 4; the PRB frequency domain resources corresponding to the SSS can be divided into four equal parts: frequency domain resource 5, frequency domain resource 6, frequency domain resource 7, and frequency domain resource 8; and the PRB frequency domain resources corresponding to the PBCH can be divided into four equal parts: frequency domain resource 9, frequency domain resource 10, frequency domain resource 11, and frequency domain resource 12. Therefore, frequency domain resources 1, 5, and 9 can be designated as the second frequency domain resource 1 corresponding to antenna subarray 1; frequency domain resources 2, 6, and 10 can be designated as the second frequency domain resource 2 corresponding to antenna subarray 2; frequency domain resources 3, 7, and 11 can be designated as the second frequency domain resource 3 corresponding to antenna subarray 3; and frequency domain resources 4, 8, and 12 can be designated as the second frequency domain resource 4 corresponding to antenna subarray 4.

[0085] It should be noted that the above examples are merely illustrative and should not be construed as limiting the types of resources included in the first frequency domain resources or the methods for determining the second frequency domain resources in the embodiments of this disclosure.

[0086] Step 306: Using each antenna element in each antenna subarray, transmit the signal carried by the second frequency domain resource corresponding to the antenna subarray.

[0087] In this embodiment, the initial width value, target width value, and antenna array corresponding to the initial width value of the first beam can be obtained first. Then, if the ratio between the target width value and the initial width value is an integer, the ratio can be determined as the broadening factor. Alternatively, if the ratio between the target width value and the initial width value is not an integer, the ratio can be rounded up or down to determine the broadening factor. Then, based on the broadening factor, the antenna array can be divided to obtain multiple antenna subarrays. Then, based on the broadening factor, the first frequency domain resources corresponding to each type of the first beam can be divided to determine multiple second frequency domain resources corresponding to each type. Finally, each antenna element in each antenna subarray can be used to transmit the signal carried by the second frequency domain resources corresponding to the antenna subarray. Therefore, by dividing the antenna array and the first frequency domain resources corresponding to the first beam based on the beamwidth factor, multiple antenna subarrays and the second frequency domain resources corresponding to each antenna subarray can be obtained. Then, each antenna element in each antenna subarray can be used to transmit only the signal carried by the second frequency domain resources corresponding to the antenna subarray. That is, by having some antennas carry only some frequency components, the radiation power of each antenna element in each antenna subarray at the corresponding frequency point is improved. Thus, while achieving beamwidth, power loss on some antennas is avoided, ensuring the radiation power of the base station.

[0088] Figure 6 This is a schematic flowchart of another beam widening method provided in an embodiment of the present disclosure.

[0089] like Figure 6 As shown, the beam broadening method includes: Step 601: Obtain the initial width value, target width value, and antenna array corresponding to the initial width value of the first beam.

[0090] Step 602: Determine the widening coefficient based on the ratio between the target width value and the initial width value.

[0091] Step 603: Based on the stretching factor, the antenna array is divided into multiple antenna subarrays.

[0092] Step 604: Based on the broadening factor, the first frequency domain resources corresponding to the first beam are divided to determine the second frequency domain resources corresponding to each antenna subarray.

[0093] Step 605: Using each antenna element in each antenna subarray, transmit the signal carried by the second frequency domain resource corresponding to the antenna subarray.

[0094] It should be noted that the specific content and implementation of steps 601 to 605 can be found in the descriptions of other embodiments of this disclosure, and will not be repeated here.

[0095] Step 606: Determine the wavelength of the first beam, the first spacing between two adjacent antenna elements in the first direction and the second spacing between two adjacent antenna elements in the second direction in any antenna subarray, the first position and first directional angle of each antenna element in the first direction in any antenna subarray, and the second position and second directional angle in the second direction.

[0096] The wavelength of the first beam, the first spacing between two adjacent antenna elements in the first direction and the second spacing between two adjacent antenna elements in the second direction in any antenna subarray can be preset. For ease of explanation, the wavelength of the first beam can be denoted as λ, the first spacing as d1, and the second spacing as d2.

[0097] Optionally, the first spacing and the second spacing may be the same or different in value, etc., and this disclosure does not limit this.

[0098] Furthermore, the first and second orientation angles can be pre-set angle values, or they can be adjusted as needed. For ease of explanation, the first orientation angle can be denoted as θ, the second orientation angle as φ, etc. This disclosure does not limit this.

[0099] It is understandable that when the first direction is horizontal and the second direction is vertical, the first direction angle can also be called the azimuth angle, and the second direction angle can also be called the elevation angle, etc. This disclosure does not limit it.

[0100] For example, if the first direction is horizontal and the second direction is vertical, and any antenna subarray has a total of Q rows and P columns of antenna elements, then the first position of the antenna element in the horizontal direction, the second position in the vertical direction, and so on can be determined respectively. This disclosure does not limit this.

[0101] Step 607: Determine the first weight of each antenna element in the first direction based on the first position and first directional angle of each antenna element, the wavelength of the first beam and the first spacing.

[0102] For example, in any antenna subarray with P columns of antenna elements, if the first position of antenna element 1 is the first antenna element in the first direction, then the first weight of antenna element 1 in the first direction can be 1. If the first position of antenna element 2 is the second antenna element in the first direction, then the first weight of antenna element 2 in the first direction can be: If the first position of antenna element 3 is the third antenna element in the first direction, then the first weight of antenna element 3 in the first direction can be: If the first position of antenna element P is the Pth antenna element in the first direction, then the first weight of antenna element P in the first direction can be: .

[0103] Then the first weight corresponding to each antenna element in any row of any antenna subarray can be denoted as: .

[0104] For example, if P is 4, then the first weight corresponding to each antenna element in any row of any antenna subarray can be denoted as: .

[0105] It should be noted that the above examples are merely illustrative and should not be construed as limiting the determination and representation of the first weight in the embodiments of this disclosure.

[0106] Step 608: Determine the second weight of each antenna element in the second direction based on the second position and second directional angle of each antenna element, the wavelength of the first beam and the second spacing.

[0107] For example, in any antenna subarray with Q rows of antenna elements, if the second position of antenna element 1 is the first antenna element in the second direction, then the second weight of antenna element 1 in the second direction can be 1. If the second position of antenna element 2 is the second antenna element in the second direction, then the second weight of antenna element 2 in the second direction can be: If the second position of antenna element 3 is the third antenna element in the second direction, then the second weight of antenna element 3 in the second direction can be: If the second position of antenna element Q is the Qth antenna element in the second direction, then the second weight of antenna element Q in the second direction can be: .

[0108] Therefore, the second weight corresponding to each antenna element in any column of any antenna subarray can be denoted as: .

[0109] For example, if Q is 4, then the second weight corresponding to each antenna element in any column of any antenna subarray can be denoted as: .

[0110] It should be noted that the above examples are merely illustrative and should not be construed as limiting the determination and representation of the second weight in the embodiments of this disclosure.

[0111] It should be noted that step 607 can be executed first, followed by step 608; or step 608 can be executed first, followed by step 607; or steps 607 and 608 can be executed simultaneously, etc. This disclosure does not limit this.

[0112] Step 609: Determine the weight matrix corresponding to any antenna subarray based on the first weight of each antenna element in the first direction and the second weight in the second direction.

[0113] The weight matrix corresponding to any antenna subarray can be determined by fusing the first weight of each antenna element in the first direction and the second weight in the second direction.

[0114] Optionally, the weight of each antenna element can be determined by the product of the first weight and the second weight of each antenna element in any antenna subarray. Then, the weight matrix corresponding to any antenna subarray can be determined based on the weight of each antenna element in any antenna subarray.

[0115] For example, if the first weight of antenna element 1 in any antenna subarray is 1 and the second weight is 1, then the weight corresponding to antenna element 1 is 1; if the first weight of antenna element 2 in any antenna subarray is: The second weight is: Then the weight corresponding to antenna element 1 is: If the first weight of antenna element 3 in any antenna subarray is: The second weight is: Therefore, the weight corresponding to antenna element 3 is: If the first weight of antenna element 4 in any antenna subarray is: If the second weight is 1, then the weight corresponding to antenna element 4 is: If the first weight of antenna element n in any antenna subarray is: The second weight is: Then the weight corresponding to antenna element n is: Then the weight matrix corresponding to any antenna subarray can be shown as follows (1): (1).

[0116] For example, when the first spacing and the second spacing are both d, the weight matrix corresponding to any antenna subarray can be expressed as shown in the following form (2): (2).

[0117] Optionally, given that the first weights corresponding to each antenna element in any row and the second weights corresponding to each antenna element in any column of any antenna subarray are determined, the weights corresponding to the first weights in any row and the second weights in any column can be multiplied by the Kronecker product to obtain the weight matrix corresponding to that antenna subarray.

[0118] For example, the first weight corresponding to each antenna element in any row of any antenna subarray is: ; The second weight matrix corresponding to each antenna element in any column of any antenna subarray is: ; Then, by performing the Kronecker product of the first weight corresponding to each antenna element in any row and the second weight corresponding to each antenna element in any column, the weight matrix corresponding to any antenna subarray can be obtained as shown in the following (1): (1).

[0119] Optionally, after determining the weight matrix corresponding to any antenna subarray, the power weight matrix corresponding to any antenna subarray can also be determined based on the weight matrix corresponding to any antenna subarray and the ratio between the target width value and the initial width value.

[0120] Specifically, the weight matrix corresponding to any antenna subarray and the ratio between the target width value and the initial width value can be fused to determine the power weight matrix corresponding to any antenna subarray.

[0121] For example, if the ratio between the target width value and the initial width value is 2, and if the weight matrix corresponding to any antenna subarray is as shown in (2) above, then the power weight matrix corresponding to any antenna subarray can be expressed in the form shown in (3) below: (3).

[0122] Alternatively, if the initial width value includes the first initial width value in the first direction and the second initial width value in the second direction, and the target width value includes the first target width value in the first direction and the second target width value in the second direction, the first broadening coefficient M can be determined based on the ratio between the first target width value and the first initial width value, and the second broadening coefficient N can be determined based on the ratio between the second target width value and the second initial width value. If the weight matrix corresponding to any antenna subarray is as shown in (2) above, then the power weight matrix corresponding to any antenna subarray can be expressed in the form shown in (4) below: (4).

[0123] It is understandable that since the modulus of any element in the weight matrix corresponding to any antenna subarray is 1, it can be characterized that there is no loss of channel power corresponding to that antenna element, that is, all antenna elements can radiate at full power, thus ensuring the overall radiation power and efficiency of the base station while ensuring the broadening.

[0124] It should be noted that the beam widening method disclosed herein is not only applicable to SSB beams, and can achieve lossless widening of SSB beams, but also to other signal beams, such as CSI-RS beams, TRS beams, CRS beams, etc. This disclosure does not limit it.

[0125] In this embodiment, the initial width value, target width value, and antenna array corresponding to the initial width value of the first beam can be obtained first. Then, based on the ratio between the target width value and the initial width value, a broadening factor can be determined. Based on the broadening factor, the antenna array can be segmented and the first frequency domain resources corresponding to the first beam can be segmented to determine the second frequency domain resources corresponding to each antenna subarray. Then, each antenna element in each antenna subarray can be used to transmit the signal carried by the second frequency domain resources corresponding to the antenna subarray. Then, based on the first position and first directional angle of each antenna element, the wavelength of the first beam, and the first spacing, the first weight of each antenna element in the first direction can be determined. Based on the second position and second directional angle of each antenna element, the wavelength of the first beam, and the second spacing, the second weight of each antenna element in the second direction can be determined. Finally, based on the first weight of each antenna element in the first direction and the second weight in the second direction, the weight matrix corresponding to any antenna subarray can be determined. Therefore, during the beam widening process, the power weight is adjusted by adjusting the weight of any antenna subarray, thereby avoiding power loss on some antennas and ensuring the radiation power of the base station while achieving beam widening.

[0126] To achieve the above embodiments, this disclosure also proposes a beam widening device. Figure 7 This is a schematic diagram of a beam stretching device provided in an embodiment of the present disclosure.

[0127] like Figure 7 As shown, the beam widening device includes: a transceiver 710, a processor 720, and a memory 730; Transceiver 710 is used to send and receive data under the control of the processor.

[0128] Among them, Figure 7In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 720) and memory (memory 730). The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 710 can be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. The processor 720 is responsible for managing the bus architecture and general processing, and the memory 730 can store data used by the processor 720 during operation.

[0129] The processor 720 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0130] The processor 720 calls a computer program stored in memory and performs the following operations: Obtain the initial width value, target width value, and antenna array corresponding to the initial width value of the first beam; The widening coefficient is determined based on the ratio between the target width value and the initial width value; Based on the stretching factor, the antenna array is divided to obtain multiple antenna subarrays; Based on the broadening factor, the first frequency domain resources corresponding to the first beam are divided to determine the second frequency domain resources corresponding to each antenna subarray; Each antenna element in each of the antenna subarrays transmits a signal carried by the second frequency domain resource corresponding to the antenna subarray.

[0131] Optionally, as another embodiment, the processor 720 is configured to determine a widening coefficient based on the ratio between the target width value and the initial width value, specifically by performing the following operations: If the ratio between the target width value and the initial width value is an integer, the ratio is determined as the widening factor; or, If the ratio between the target width value and the initial width value is not an integer, the ratio is rounded up or down to determine the expansion coefficient.

[0132] Optionally, as another embodiment, the processor 720 is configured to determine a widening coefficient by rounding the ratio between the target width value and the initial width value up or down when the ratio is not an integer, specifically by performing the following operations: If the ratio between the target width value and the initial width value is a non-integer value that is greater than 1 and less than 2, the ratio is rounded up to determine the widening factor; or, If the ratio between the target width value and the initial width value is a non-integer greater than 2, the ratio is rounded up or down to determine the widening coefficient.

[0133] Optionally, as another embodiment, the processor 720 is configured to determine a widening coefficient based on the ratio between the target width value and the initial width value, specifically by performing the following operations: When the initial width value includes a first initial width value in a first direction and a second initial width value in a second direction, and the target width value includes a first target width value in the first direction and a second target width value in the second direction, a first widening coefficient is determined based on the ratio between the first target width value and the first initial width value. The second widening coefficient is determined based on the ratio between the second target width value and the second initial width value; The product of the first expansion coefficient and the second expansion coefficient is determined as the expansion coefficient.

[0134] Optionally, as another embodiment, the processor 720 is configured to perform the following operations: based on the broadening coefficient, divide the first frequency domain resources corresponding to the first beam to determine the second frequency domain resources corresponding to each antenna subarray. Based on the broadening factor, the first frequency domain resources corresponding to each type of the first beam are divided to determine multiple second frequency domain resources corresponding to each type.

[0135] Optionally, as another embodiment, after transmitting the signal carried by the second frequency domain resource corresponding to each antenna element in each of the antenna subarrays, the processor 720 is further configured to perform the following operations: The wavelength of the first beam, the first spacing between two adjacent antenna elements in a first direction and the second spacing between two adjacent antenna elements in a second direction in any antenna subarray, the first position and first directional angle of each antenna element in the first direction in the first antenna subarray, and the second position and second directional angle in the second direction are determined. Based on the first position and first directional angle of each antenna element, the wavelength of the first beam and the first spacing, a first weight of each antenna element in the first direction is determined; A second weight of each antenna element in the second direction is determined based on the second position and second directional angle of each antenna element, the wavelength of the first beam, and the second spacing. The weight matrix corresponding to any antenna subarray is determined based on the first weight of each antenna element in the first direction and the second weight in the second direction.

[0136] Optionally, as another embodiment, the processor 720 is configured to perform the following operations: determining a weight matrix corresponding to any antenna subarray based on a first weight of each antenna element in the first direction and a second weight in the second direction. The product of the first weight and the second weight of each antenna element in any antenna subarray is determined as the weight of each antenna element; Based on the weight of each antenna element in any antenna subarray, the weight matrix corresponding to any antenna subarray is determined.

[0137] Optionally, as another embodiment, after determining the weight matrix corresponding to any of the antenna subarrays, the processor 720 is further configured to perform the following operations: Based on the weight matrix corresponding to any antenna subarray and the ratio between the target width value and the initial width value, the power weight matrix corresponding to any antenna subarray is determined.

[0138] It should be noted that the beam stretching device provided in this embodiment can achieve the above-mentioned... Figure 1 , Figure 3 , Figure 6 All method steps implemented in the method embodiment can achieve the same technical effect. Therefore, the parts that are the same as those in the method embodiment and their beneficial effects will not be described in detail here.

[0139] With the above Figure 1 , Figure 3 , Figure 6Corresponding to the beam widening method provided in the embodiments, this disclosure also provides a beam widening device. Since the beam widening device provided in the embodiments of this disclosure is similar to the one described above... Figure 1 , Figure 3 , Figure 6 The beam widening method provided in the embodiments corresponds to the beam widening method, and therefore the implementation of the beam widening method is also applicable to the beam widening device provided in the embodiments of this disclosure, which will not be described in detail in the embodiments of this disclosure.

[0140] To achieve the above embodiments, this disclosure also proposes a beam widening device. Figure 8 This is a schematic diagram of a beam stretching device provided in an embodiment of the present disclosure.

[0141] like Figure 8 As shown, the beam stretching device 800 includes: The first acquisition module 810 is used to acquire the initial width value, the target width value, and the antenna array corresponding to the initial width value of the first beam.

[0142] The first determining module 820 is used to determine the widening coefficient based on the ratio between the target width value and the initial width value.

[0143] The second acquisition module 830 is used to divide the antenna array based on the stretching coefficient to obtain multiple antenna subarrays.

[0144] The second determining module 840 is used to divide the first frequency domain resources corresponding to the first beam based on the broadening coefficient, so as to determine the second frequency domain resources corresponding to each antenna subarray.

[0145] The control module 850 is used to transmit a signal carried by a second frequency domain resource corresponding to each antenna element in each of the antenna subarrays.

[0146] Optionally, the first determining module 820 includes: The first determining unit is configured to determine the ratio between the target width value and the initial width value as a widening coefficient when the ratio is an integer. The second determining unit is used to determine the widening coefficient by rounding the ratio between the target width value and the initial width value up or down when the ratio is not an integer.

[0147] Optionally, the second determining unit is specifically used for: If the ratio between the target width value and the initial width value is a non-integer value that is greater than 1 and less than 2, the ratio is rounded up to determine the widening factor; or, If the ratio between the target width value and the initial width value is a non-integer greater than 2, the ratio is rounded up or down to determine the widening coefficient.

[0148] Optionally, the first determining module 820 is specifically used for: When the initial width value includes a first initial width value in a first direction and a second initial width value in a second direction, and the target width value includes a first target width value in the first direction and a second target width value in the second direction, a first widening coefficient is determined based on the ratio between the first target width value and the first initial width value. The second widening coefficient is determined based on the ratio between the second target width value and the second initial width value; The product of the first expansion coefficient and the second expansion coefficient is determined as the expansion coefficient.

[0149] Optionally, the second determining module 840 is specifically used for: Based on the broadening factor, the first frequency domain resources corresponding to each type of the first beam are divided to determine multiple second frequency domain resources corresponding to each type.

[0150] Optionally, a third determining module may also be included, for: The wavelength of the first beam, the first spacing between two adjacent antenna elements in a first direction and the second spacing between two adjacent antenna elements in a second direction in any antenna subarray, the first position and first directional angle of each antenna element in the first direction in the first antenna subarray, and the second position and second directional angle in the second direction are determined. Based on the first position and first directional angle of each antenna element, the wavelength of the first beam and the first spacing, a first weight of each antenna element in the first direction is determined; A second weight of each antenna element in the second direction is determined based on the second position and second directional angle of each antenna element, the wavelength of the first beam, and the second spacing. The weight matrix corresponding to any antenna subarray is determined based on the first weight of each antenna element in the first direction and the second weight in the second direction.

[0151] Optionally, the third determining module is specifically used for: The product of the first weight and the second weight of each antenna element in any antenna subarray is determined as the weight of each antenna element; Based on the weight of each antenna element in any antenna subarray, the weight matrix corresponding to any antenna subarray is determined.

[0152] Optionally, the third determining module is further configured to: Based on the weight matrix corresponding to any antenna subarray and the ratio between the target width value and the initial width value, the power weight matrix corresponding to any antenna subarray is determined.

[0153] It should be noted that the beam stretching device provided in this embodiment can achieve the above-mentioned... Figure 1 , Figure 3 , Figure 6 All method steps implemented in the method embodiment can achieve the same technical effect. Therefore, the parts that are the same as those in the method embodiment and their beneficial effects will not be described in detail here.

[0154] It should be noted that the division of units in the embodiments of this disclosure is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0155] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network-side device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this disclosure. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0156] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the above method embodiment and achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0157] On the other hand, embodiments of this disclosure also provide a processor-readable storage medium storing a computer program for causing a processor to execute the present disclosure. Figure 1 , Figure 3 , Figure 6 The method shown in the embodiment.

[0158] The processor-readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic storage (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), optical storage (e.g., CD, DVD, BD, HVD), and semiconductor storage (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)).

[0159] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

[0160] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A beam broadening method, characterized in that, include: Obtain the initial width value, target width value, and antenna array corresponding to the initial width value of the first beam; The widening coefficient is determined based on the ratio between the target width value and the initial width value; Based on the stretching factor, the antenna array is divided to obtain multiple antenna subarrays; Based on the broadening factor, the first frequency domain resources corresponding to the first beam are divided to determine the second frequency domain resources corresponding to each antenna subarray; Using each antenna element in each of the antenna subarrays, a signal carried by the second frequency domain resource corresponding to the antenna subarray is transmitted; The step of determining the widening coefficient based on the ratio between the target width value and the initial width value includes: When the initial width value includes a first initial width value in a first direction and a second initial width value in a second direction, and the target width value includes a first target width value in the first direction and a second target width value in the second direction, a first widening coefficient is determined based on the ratio between the first target width value and the first initial width value. The second widening coefficient is determined based on the ratio between the second target width value and the second initial width value; The product of the first expansion coefficient and the second expansion coefficient is determined as the expansion coefficient.

2. The method as described in claim 1, characterized in that, The step of dividing the first frequency domain resources corresponding to the first beam based on the broadening coefficient to determine the second frequency domain resources corresponding to each antenna subarray includes: Based on the broadening factor, the first frequency domain resources corresponding to each type of the first beam are divided to determine multiple second frequency domain resources corresponding to each type.

3. The method as described in claim 1, characterized in that, After transmitting the signal carried by the second frequency domain resource corresponding to each antenna subarray using each antenna element in each of the antenna subarrays, the method further includes: The wavelength of the first beam, the first spacing between two adjacent antenna elements in a first direction and the second spacing between two adjacent antenna elements in a second direction in any antenna subarray, the first position and first directional angle of each antenna element in the first direction in the first antenna subarray, and the second position and second directional angle in the second direction are determined. Based on the first position and first directional angle of each antenna element, the wavelength of the first beam and the first spacing, a first weight of each antenna element in the first direction is determined; A second weight of each antenna element in the second direction is determined based on the second position and second directional angle of each antenna element, the wavelength of the first beam, and the second spacing. The weight matrix corresponding to any antenna subarray is determined based on the first weight of each antenna element in the first direction and the second weight in the second direction.

4. The method as described in claim 3, characterized in that, The step of determining the weight matrix corresponding to any antenna subarray based on the first weight of each antenna element in the first direction and the second weight in the second direction includes: The product of the first weight and the second weight of each antenna element in any antenna subarray is determined as the weight of each antenna element; Based on the weight of each antenna element in any antenna subarray, the weight matrix corresponding to any antenna subarray is determined.

5. The method as described in claim 3, characterized in that, After determining the weight matrix corresponding to any of the antenna subarrays, the method further includes: Based on the weight matrix corresponding to any antenna subarray and the ratio between the target width value and the initial width value, the power weight matrix corresponding to any antenna subarray is determined.

6. A beam stretching device, characterized in that, The device includes a memory, a transceiver, and a processor; A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Obtain the initial width value, target width value, and antenna array corresponding to the initial width value of the first beam; The widening coefficient is determined based on the ratio between the target width value and the initial width value; Based on the stretching factor, the antenna array is divided to obtain multiple antenna subarrays; Based on the broadening factor, the first frequency domain resources corresponding to the first beam are divided to determine the second frequency domain resources corresponding to each antenna subarray; Using each antenna element in each of the antenna subarrays, a signal carried by the second frequency domain resource corresponding to the antenna subarray is transmitted; Specifically, the processor is used to perform the following operations: When the initial width value includes a first initial width value in a first direction and a second initial width value in a second direction, and the target width value includes a first target width value in the first direction and a second target width value in the second direction, a first widening coefficient is determined based on the ratio between the first target width value and the first initial width value. The second widening coefficient is determined based on the ratio between the second target width value and the second initial width value; The product of the first expansion coefficient and the second expansion coefficient is determined as the expansion coefficient.

7. The apparatus as claimed in claim 6, characterized in that, The processor is specifically used to perform the following operations: Based on the broadening factor, the first frequency domain resources corresponding to each type of the first beam are divided to determine multiple second frequency domain resources corresponding to each type.

8. The apparatus as claimed in claim 6, characterized in that, The processor is specifically used to perform the following operations: The wavelength of the first beam, the first spacing between two adjacent antenna elements in a first direction and the second spacing between two adjacent antenna elements in a second direction in any antenna subarray, the first position and first directional angle of each antenna element in the first direction in the first antenna subarray, and the second position and second directional angle in the second direction are determined. Based on the first position and first directional angle of each antenna element, the wavelength of the first beam and the first spacing, a first weight of each antenna element in the first direction is determined; A second weight of each antenna element in the second direction is determined based on the second position and second directional angle of each antenna element, the wavelength of the first beam, and the second spacing. The weight matrix corresponding to any antenna subarray is determined based on the first weight of each antenna element in the first direction and the second weight in the second direction.

9. The apparatus as claimed in claim 8, characterized in that, The processor is specifically used to perform the following operations: The product of the first weight and the second weight of each antenna element in any antenna subarray is determined as the weight of each antenna element; Based on the weight of each antenna element in any antenna subarray, the weight matrix corresponding to any antenna subarray is determined.

10. The apparatus as claimed in claim 8, characterized in that, The processor is specifically used to perform the following operations: Based on the weight matrix corresponding to any antenna subarray and the ratio between the target width value and the initial width value, the power weight matrix corresponding to any antenna subarray is determined.

11. A beam stretching device, characterized in that, include: The first acquisition module is used to acquire the initial width value, the target width value, and the antenna array corresponding to the initial width value of the first beam; The first determining module is used to determine the widening coefficient based on the ratio between the target width value and the initial width value; The second acquisition module is used to divide the antenna array based on the stretching coefficient to obtain multiple antenna subarrays; The second determining module is used to divide the first frequency domain resources corresponding to the first beam based on the broadening coefficient, so as to determine the second frequency domain resources corresponding to each antenna subarray. The control module is used to transmit signals carried by the second frequency domain resources corresponding to each antenna element in each antenna subarray. The first determining module is further configured to: When the initial width value includes a first initial width value in a first direction and a second initial width value in a second direction, and the target width value includes a first target width value in the first direction and a second target width value in the second direction, a first widening coefficient is determined based on the ratio between the first target width value and the first initial width value. The second widening coefficient is determined based on the ratio between the second target width value and the second initial width value; The product of the first expansion coefficient and the second expansion coefficient is determined as the expansion coefficient.

12. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program that causes the processor to perform the method described in any one of claims 1-5.

Images