Signal sending method and device, and computer readable storage medium
By using preset beam technology in the building to correlate the radiation field strength of the antenna array with distance, the problem of uneven signal coverage on different floors in the building is solved, and a uniform signal coverage effect is achieved.
Patent Information
- Application Number
- CN202211686470.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-27
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2042-12-27
AI Technical Summary
In the case of dense buildings and increasing height, terminal equipment on different floors in the same building cannot achieve uniform signal coverage, resulting in different radiation scenes received.
By controlling the antenna array, the radiation field strength of the antenna array is related to its horizontal distance, and the vertical height is set not lower than the height of the terminal equipment within the coverage range. The positive cutting function is used as the directional function to ensure different floors The terminal device receives the same signal strength.
The uniform coverage of terminal equipment on different floors in the same building is achieved. Through the preset beam transmission technology of the antenna array, the radiation field strengths received by equipment on different floors are ensured, and the uniformity of signal coverage is improved.
Smart Images
Figure CN116017483B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of wireless communication technologies, and in particular to a signal sending method and device, and a computer-readable storage medium. Background Art
[0002] With the development of urbanization, the density of buildings is increasing and the height of buildings is getting higher and higher, resulting in poor signal coverage.
[0003] In the same building, terminal devices located on different floors can receive beams sent by the same antenna array. However, the radiation scenarios received by terminal devices on different floors from the same antenna array are different, and it is impossible to achieve uniform coverage of terminal devices on different floors in the same building. Summary of the invention
[0004] The embodiment of the present invention solves the technical problem that it is impossible to achieve uniform coverage of different floors in the same building.
[0005] To solve the above technical problems, an embodiment of the present invention provides a signal sending method, including: obtaining a target signal to be sent; controlling an antenna array to use a preset beam to send the target signal; when the antenna array uses the preset beam to send the target signal, the radiation field strength of the antenna array is related to the horizontal distance from the antenna array.
[0006] Optionally, when controlling the antenna array to use the preset beam to send the target signal, the quotient of the directivity function of the antenna array and the horizontal distance between the terminal device and the antenna array is a constant.
[0007] Optionally, the field strength directivity function of the antenna array is a secant function.
[0008] Optionally, the radiation field strength of the antenna array is: Wherein, I is the current value on the antenna array, and R is the horizontal distance between the terminal device and the antenna array.
[0009] Optionally, the vertical height of the antenna array is set not lower than the vertical height of a terminal device within the coverage range of the antenna array.
[0010] An embodiment of the present invention also provides a signal transmitting device, including: an acquisition unit, used to acquire a target signal to be sent; a control unit, used to control an antenna array to send the target signal using a preset beam; when the antenna array uses the preset beam to send the target signal, the radiation field strength of the antenna array is related to the horizontal distance from the antenna array.
[0011] Optionally, when controlling the antenna array to use the preset beam to send the target signal, the quotient of the directivity function of the antenna array and the horizontal distance between the terminal device and the antenna array is a constant.
[0012] Optionally, the field strength directivity function of the antenna array is a secant function.
[0013] Optionally, the radiation field strength of the antenna array is: Wherein, I is the current value on the antenna array, and R is the horizontal distance between the terminal device and the antenna array.
[0014] Optionally, the vertical height of the antenna array is set not lower than the vertical height of a terminal device within the coverage range of the antenna array.
[0015] An embodiment of the present invention further provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned signal sending methods are executed.
[0016] An embodiment of the present invention further provides another signal sending device, including a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, and the processor executes the steps of any of the above-mentioned signal sending methods when running the computer program.
[0017] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:
[0018] When the antenna array uses a preset beam to send a target signal block, the radiation field strength of the antenna array is related to the horizontal distance from the antenna array. For terminal devices located on different floors in the same building, their horizontal distances from the antenna array can be approximately considered equal, so the radiation field strength received by terminal devices on different floors can be considered equal, thus achieving uniform coverage of terminal devices on different floors. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a flow chart of a signal sending method in an embodiment of the present invention;
[0020] Figure 2 is a schematic diagram of an applicable scenario corresponding to a signal sending method in an embodiment of the present invention;
[0021] Figure 3 It is a structural schematic diagram of a signal sending device in an embodiment of the present invention. DETAILED DESCRIPTION
[0022] As described in the background technology, in the same building, terminal devices on different floors receive different radiation scenarios from the same antenna array, and it is impossible to achieve uniform coverage of terminal devices located on different floors in the same building.
[0023] In an embodiment of the present invention, when the antenna array uses a preset beam to send a target signal block, the radiation field strength of the antenna array is related to the horizontal distance from the antenna array. For terminal devices located on different floors in the same building, their horizontal distances from the antenna array can be approximately regarded as equal, so the radiation field strength received by the terminal devices on different floors can be regarded as equal, thereby achieving uniform coverage of the terminal devices on different floors.
[0024] In order to make the above-mentioned objects, features and beneficial effects of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0025] The embodiment of the present invention provides a signal sending method, referring to Figure 1 , the following is a detailed description through specific steps.
[0026] In the embodiment of the present invention, the signal transmission method corresponding to the following steps 101 to 102 can be executed by a chip with data processing capability in a base station device or a relay device, or by a chip module including the chip with data processing capability in a base station device or a relay device. The following is an introduction using the base station device as an example of the execution subject.
[0027] Step 101: Acquire a target signal to be sent.
[0028] In a specific implementation, the base station device may acquire a target signal to be sent, and the target signal may include a message broadcast by the base station device to the terminal device, so that each terminal device within its coverage can receive the target signal.
[0029] For example, the target signal includes system information, paging messages, etc.
[0030] In a specific implementation, the target signal may also be a signal used by a base station device to communicate with one or several terminal devices within its coverage area, which carries corresponding communication content.
[0031] It is understandable that the above-mentioned target signal is essentially a signal for communication between the base station device and the terminal device. The specific signal type and the content carried by the signal are not described in detail.
[0032] Step 102: Control the antenna array to transmit a target signal using a preset beam.
[0033] In a specific implementation, the base station device can send a target signal through an antenna array. Generally, in order to improve the signal coverage of the antenna array, the antenna array is set at a higher position. For example, the antenna array is usually set at a high place in a building.
[0034] In the embodiment of the present invention, there may be at least one target building within the coverage of the antenna array, and the target building may be a multi-story building. There may be multiple terminal devices on each floor of the target building. For example, the target building is an office building, and each floor of the office building has multiple office spaces, and some or all of the office spaces have users working, and the users carry terminal devices such as smart phones and smart watches.
[0035] In a specific implementation, the antenna can be installed on another building at a certain distance from the target building. Specifically, a building can be selected to install the antenna according to the distribution of buildings around the target building.
[0036] In a specific application, the antenna can be installed at a high level of a selected building, such as the top floor of a building or the top floor of a building. The installation position of the antenna array can be higher than the highest floor of the target building, and the beam emission direction of the antenna array can be toward the target building.
[0037] In the embodiment of the present invention, when the base station device controls the antenna array to use the preset beam to send the target signal, the radiation field strength of the antenna array may be related to the horizontal distance from the antenna array. Specifically, the closer the horizontal distance between the target building and the antenna array, the greater the radiation field strength received by the terminal device; the farther the horizontal distance between the target building and the antenna array, the smaller the radiation field strength received by the terminal device.
[0038] In a specific implementation, when the base station device controls the antenna array to use a preset beam to send a target signal, the quotient of the directivity function of the antenna array and the horizontal distance between the terminal device and the antenna array is a constant.
[0039] Assuming the directivity function of the antenna array is f(θ), and the horizontal distance between the terminal device and the antenna array is r, then f(θ) / r is a constant.
[0040] It can be known in practical applications that the directivity function of the antenna array may include a field intensity directivity function and a gain directivity function.
[0041] In the embodiment of the present invention, the field intensity directivity function of the antenna array is a secant function, and correspondingly, the gain directivity function of the antenna array is the square of the secant function.
[0042] In a specific implementation, when the antenna array uses a preset beam to send a target signal, the corresponding radiation field strength is Wherein, I is the current value on the antenna array, and R is the horizontal distance between the terminal device and the antenna array.
[0043] In a specific implementation, a corresponding beam may be selected according to requirements, so that the radiation field strength of the antenna array is related to the horizontal distance from the antenna array.
[0044] The specific principle of the signal sending method provided in the embodiment of the present invention is described below. Figure 2 , a schematic diagram of an application scenario in an embodiment of the present invention is given.
[0045] In the following example, the building where the antenna array is installed is referred to as building A, and the target building is referred to as building B. The antenna can be installed on the top of building A, such as the top floor of building A, or a high position such as the roof of building A. The location where the antenna is installed on building A can be higher than the highest floor of building B. In this case, terminal devices on different floors of building B can receive signals with the same amplitude.
[0046] Assume that the distance between building A and building B is R, the height of building B is h, and the height of building A is not lower than the height of building B. According to antenna theory, the radiation field amplitude of the observation point at a distance r from the antenna in the direction of depression angle θ can be expressed as:
[0047]
[0048] In the above formula (1), I is the current on the antenna, and f(θ) is the directivity function of the antenna array with I as the reference.
[0049] For users on different floors of building B, their corresponding depression angles θ are different, and their distances from the antenna array are also different. Figure 2 As shown in , the distance between the top floor of building B and the antenna is r1, the distance between the bottom floor of building B and the antenna is r2, and the distance between a certain floor in building B and the antenna is r.
[0050] From the above formula (1), we can see that in order to ensure that users on different floors in building B can receive signals with the same amplitude, it is necessary to ensure Is a constant.
[0051] Pick
[0052] Substituting formula (2) into formula (1), we can get:
[0053]
[0054] Since the horizontal distance R from users on different floors in building B to the antenna array is equal, when the field strength directivity function of the antenna array is a secant function, it can ensure that the terminal devices on each floor in building B can receive equal field strength.
[0055] From the above, it can be seen that when the antenna array uses a preset beam to send a target signal block, the radiation field strength of the antenna array is related to the horizontal distance from the antenna array. For terminal devices located on different floors in the same building, their horizontal distances from the antenna array can be approximately considered equal, so the radiation field strength received by terminal devices on different floors can be considered equal, thus achieving uniform coverage of terminal devices on different floors.
[0056] Reference Figure 3 , a signal sending device 30 in an embodiment of the present invention is provided, comprising: an acquisition unit 301 and a control unit 302, wherein:
[0057] An acquisition unit 301 is used to acquire a target signal to be sent;
[0058] The control unit 302 is used to control the antenna array to send the target signal using a preset beam; when the antenna array uses the preset beam to send the target signal, the radiation field strength of the antenna array is related to the horizontal distance from the antenna array.
[0059] In a specific implementation, the quotient of the directivity function of the antenna array and the horizontal distance between the terminal device and the antenna array is a constant.
[0060] In a specific implementation, the field intensity directivity function of the antenna array is a secant function.
[0061] In a specific implementation, the radiation field strength of the antenna array is: Wherein, I is the current value on the antenna array, and R is the horizontal distance between the terminal device and the antenna array.
[0062] In a specific implementation, the vertical height of the antenna array is not lower than the vertical height of the terminal equipment within the coverage range of the antenna array.
[0063] In a specific implementation, each module / unit included in each device or product described in the above embodiments may be a software module / unit or a hardware module / unit, or may be partly a software module / unit and partly a hardware module / unit.
[0064] For example, for each device or product applied to or integrated in a chip, each module / unit contained therein may be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits; for each device or product applied to or integrated in a chip module, each module / unit contained therein may be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules / units may be implemented in the form of software programs. The element can be implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.
[0065] An embodiment of the present invention further provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the signal sending method provided in steps 101 to 102 are executed.
[0066] An embodiment of the present invention further provides a signal sending device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor runs the computer program, the steps of the signal sending method provided in steps 101 to 102 are executed.
[0067] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by instructing the relevant hardware through a program, and the program may be stored in a computer-readable storage medium, which may include: ROM, RAM, disk or CD, etc.
[0068] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.
Claims
1. A signal sending method, characterized in that: include: Acquire the target signal to be sent; Controlling the antenna array to transmit the target signal using a preset beam; When the antenna array uses the preset beam to send the target signal, the radiation field strength of the antenna array is related to the horizontal distance from the antenna array; The radiation field strength at the observation point at a distance r from the antenna in the depression angle θ direction is: f(θ) is the directivity function of the antenna array with reference to I, and f(θ)=secθ=r / R; the radiation field strength of the antenna array is determined as: Wherein, I is the current value on the antenna array, and R is the horizontal distance between the terminal device and the antenna array.
2. The signal transmission method according to claim 1, characterized in that: The vertical height at which the antenna array is set is not lower than the vertical height at which the terminal devices within the coverage area of the antenna array are located.
3. A signal sending device, characterized in that: include: An acquisition unit, used for acquiring a target signal to be sent; A control unit, used for controlling the antenna array to transmit the target signal using a preset beam; When the antenna array uses the preset beam to send the target signal, the radiation field strength of the antenna array is related to the horizontal distance from the antenna array; The radiation field strength at the observation point at a distance r from the antenna in the depression angle θ direction is: f(θ) is the directivity function of the antenna array with reference to I, and f(θ)=secθ=r / R; the radiation field strength of the antenna array is determined as: Wherein, I is the current value on the antenna array, and R is the horizontal distance between the terminal device and the antenna array.
4. A computer-readable storage medium, wherein the computer-readable storage medium is a non-volatile storage medium or a non-transient storage medium, and a computer program is stored thereon, wherein: When the computer program is executed by a processor, the steps of the signal sending method according to claim 1 or 2 are executed.
5. A signal sending device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, characterized in that: When the processor runs the computer program, the steps of the signal sending method according to claim 1 or 2 are performed.