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WO2025152490A1 - Procédés et appareil de transmission de signal - Google Patents

Procédés et appareil de transmission de signal

Info

Publication number
WO2025152490A1
WO2025152490A1 PCT/CN2024/120153 CN2024120153W WO2025152490A1 WO 2025152490 A1 WO2025152490 A1 WO 2025152490A1 CN 2024120153 W CN2024120153 W CN 2024120153W WO 2025152490 A1 WO2025152490 A1 WO 2025152490A1
Authority
WO
WIPO (PCT)
Prior art keywords
constellation
constellation point
points
constellation points
subset
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/120153
Other languages
English (en)
Chinese (zh)
Inventor
瞿辉洋
黄煌
马千里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2025152490A1 publication Critical patent/WO2025152490A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/345—Modifications of the signal space to allow the transmission of additional information
    • H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
    • H04L27/3483—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel using a modulation of the constellation points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems

Definitions

  • the present application relates to the field of communication technology, and in particular to a signal transmission method and device.
  • QPSK has better perceptual performance but lower transmission rate
  • 64-QAM has higher transmission rate but poorer perceptual performance
  • the embodiments of the present application provide a signal transmission method and device, which can enable the modulation method to take into account both the perception performance and the transmission rate.
  • a signal transmission method is provided, which can be executed by a transmitting device.
  • the "transmitting device” in this application can refer to the transmitting device itself, or a component in the transmitting device (for example, a processor, a chip, or a chip system, etc.), or a logic module or software that can realize all or part of the functions of the transmitting device.
  • the method includes: the transmitting device obtains a first signal; sends a modulated first signal; wherein the modulated first signal is modulated and determined according to a first modulation constellation diagram, and the first modulation constellation diagram includes 16 first constellation points; the 16 first constellation points are determined according to 16 second constellation points among N second constellation points of a second modulation constellation diagram, and the fluctuation values corresponding to the 16 second constellation points are less than or equal to a first preset threshold value, and the fluctuation value is determined according to the difference between the maximum value and the minimum value of the distance between the 16 second constellation points and the origin; N is a positive integer greater than 16.
  • the transmitting device can select 16 second constellation points from the second modulation constellation diagram to determine the first modulation constellation diagram, and then modulate the first signal through the first modulation constellation diagram.
  • the fluctuation values corresponding to the 16 second constellation points are small (that is, the difference in the distance between the 16 second constellation points and the origin is small)
  • the perception performance of the first signal can be improved while ensuring a certain transmission rate.
  • the receiving device can select 16 second constellation points from the second modulation constellation diagram to determine the first modulation constellation diagram, and determine the first signal according to the first modulation constellation diagram; in addition, since the fluctuation values corresponding to the 16 second constellation points are small (that is, the difference in the distance between the 16 second constellation points and the origin is small), the perception performance of the first signal can be improved while ensuring a certain transmission rate.
  • the fluctuation values corresponding to the 16 second constellation points are the minimum fluctuation values that are less than or equal to the first preset threshold.
  • this implementation can be for determining the constellation point set corresponding to the minimum fluctuation value (that is, the difference in the distances between different second constellation points and the origin in the constellation point set corresponding to the minimum fluctuation value is the smallest among the differences in the distances between different second constellation points and the origin in the X constellation point sets), which can further improve the perception performance of the first signal.
  • each constellation point set includes one or more constellation point subsets in M constellation point subsets corresponding to N second constellation points; wherein the multiple constellation point subsets are multiple adjacent constellation point subsets in the M constellation point subsets arranged in a first numerical order; the first numerical value is the distance between the second constellation point and the origin; the distance between the second constellation point in each constellation point subset and the origin is equal.
  • M constellation point subsets can be determined (that is, the second constellation points with equal distances are classified into one constellation point subset), thereby providing a feasible scheme for determining the M constellation point subsets;
  • X constellation point sets can be determined by the M constellation point subsets, each constellation point set including one constellation point subset or multiple adjacent constellation point subsets in the M constellation point subsets, so that the fluctuation value corresponding to each constellation point set can be made smaller (that is, the difference in the distance between the second constellation point in each constellation point set and the origin is smaller), thereby ensuring that the fluctuation values corresponding to the 16 second constellation points are as small as possible, and improving the perception performance of the first signal while ensuring a certain transmission rate.
  • the communication interface is an interface circuit for reading and writing computer instructions.
  • the interface circuit is used to receive computer execution instructions (computer execution instructions are stored in a memory, may be read directly from the memory, or may pass through other devices) and transmit them to the processor.
  • FIG17 is a simulation schematic diagram of a different modulation method provided by the present application.
  • FIG18 is a schematic diagram of a simulation of a different modulation method provided by the present application.
  • FIG19 is a schematic diagram of the structure of a transmitting end device provided by the present application.
  • FIG20 is a schematic diagram of the structure of a receiving end device provided by the present application.
  • FIG21 is a schematic diagram of the structure of another communication device provided in the present application.
  • plural means two or more than two.
  • At least one of the following or similar expressions refers to any combination of these items, including any combination of single items or plural items.
  • at least one of a, b, or c can mean: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.
  • words such as “first” and “second” are used to distinguish the same items or similar items with substantially the same functions and effects. Those skilled in the art can understand that words such as “first” and “second” do not limit the quantity and execution order, and words such as “first” and “second” do not necessarily limit the difference.
  • words such as “exemplary” or “for example” are used to indicate examples, illustrations or descriptions. Any embodiment or design described as “exemplary” or “for example” in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as “exemplary” or “for example” is intended to present related concepts in a concrete way for easy understanding.
  • ISAC is widely regarded as the next generation of wireless communications (such as the sixth generation (6G)) or future wireless communications.
  • 6G sixth generation
  • the transmitting device can send a signal that can have both the ability to sense and communicate, that is, the transmitting device can sense the environment or objects through the signal while communicating with the receiving device through the signal.
  • the transmitting device can sense the surrounding environment, the moving speed of an object, the distance to the target object, etc. through the signal.
  • the traditional perception technology is radar.
  • the signal can obtain a better transmission rate or better perception performance through different modulation methods.
  • the modulation method can be quadrature phase shift keying (QPSK), 16-quadrature amplitude modulation (QAM), or 64-QAM.
  • QAM modulation technology can be applied to high-speed data transmission systems, digital microwave communications, wireless communications, etc.
  • QAM can realize two modulation modes: amplitude and phase. It is a modulation method for digital signals on wireless, wired, or optical transmission links. By modulating the signal through QAM, the bandwidth can be fully utilized, the frequency utilization rate can be improved, and the anti-noise ability of the digital signal can be improved.
  • the modulated digital signal may have any number of discrete digital levels.
  • a transmitting device communicates with a receiving device, a higher transmission rate is required (which can be understood as higher spectrum efficiency, or maximizing the effectiveness of communication), and when the transmitting device performs perception, better perception performance is required (such as higher detection accuracy of target objects).
  • QPSK has better perceptual performance but lower transmission rate
  • 64-QAM has higher transmission rate but worse perceptual performance
  • the perceptual performance corresponding to different modulation methods can be determined more intuitively through simulation experiments, as shown in Figure 1 below, where the horizontal axis is the signal-to-noise ratio (SNR) and the vertical axis is the root mean square error (RMSE).
  • SNR signal-to-noise ratio
  • RMSE root mean square error
  • the SNR of QPSK is approximately 14dB
  • the SNR of 16-QAM is approximately 17dB
  • the SNR of 64-QAM is approximately 18dB.
  • the QPSK modulation method has the best perceptual performance, while the 64-QAM modulation method has the worst perceptual performance.
  • the signal can be modulated using 16-QAM.
  • the fifth generation (5G) mobile communication system uses a 16-QAM constellation diagram to transmit (or understand as carrying) 4 bits of information.
  • the modulation constellation diagram of 16-QAM can be shown in Figure 2 below.
  • a fourth possible application scenario may be a wireless communication system such as a wireless LAN, as shown in FIG7 .
  • the network device may be an AP.
  • one AP may serve multiple terminal devices.
  • one terminal device may communicate with multiple APs.
  • the communication bus 802 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus.
  • the bus may be divided into an address bus, a data bus, a control bus, etc.
  • FIG8 is represented by only one thick line, but it does not mean that there is only one bus or one type of bus.
  • the communication bus 802 is used to connect different components in the communication device 80 so that different components in the communication device 80 can communicate and interact with each other.
  • the memory 803 may be a device with a storage function.
  • it may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
  • the memory may exist independently and be connected to the processor via the communication bus 802. The memory may also be integrated with the processor.
  • the memory 803 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 801.
  • the processor 801 is used to execute the computer-executable instructions stored in the memory 803, thereby implementing the method provided in the embodiment of the present application.
  • the processor 801 may also perform processing-related functions in the method provided in the following embodiments of the present application, and the communication interface 804 is responsible for communicating with other devices or communication networks, which is not specifically limited in the embodiments of the present application.
  • the communication device 80 may further include an output device 805 and an input device 806.
  • Output device 805 The processor 801 communicates with the input device 806 and can display information in a variety of ways.
  • the output device 805 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector.
  • the input device 806 communicates with the processor 801 and can receive user input in a variety of ways.
  • the input device 806 can be a mouse, a keyboard, a touch screen device, or a sensor device.
  • composition structure shown in FIG8 does not constitute a limitation on the communication device.
  • the communication device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.
  • FIG. 9 it is an interaction diagram of a signal transmission method provided by the present application.
  • the signal transmission method is explained by taking the interaction between a transmitting device and a receiving device as an example.
  • the subject that executes the action of the transmitting device in the method can also be a device/module in the transmitting device, such as a chip, a processor, a processing unit, etc. in the transmitting device;
  • the subject that executes the action of the receiving device in the method can also be a device/module in the receiving device, such as a chip, a processor, a processing unit, etc. in the receiving device, and the present application embodiment does not make specific limitations on this.
  • the steps executed by a single execution subject in the embodiment of the present application can also be divided into executions by multiple execution subjects, and these execution subjects can be logically and/or physically separated.
  • a single execution subject for example, a transmitting device or a receiving device
  • the signal transmission method includes the following steps:
  • a transmitting device obtains a first signal.
  • the first signal may be used for communication or for perception without restriction.
  • the transmitting device sends a modulated first signal to the receiving device.
  • the modulated first signal in S902 is determined by modulation according to the first modulation constellation diagram.
  • the transmitting device can modulate the first signal through the first modulation constellation diagram to obtain the modulated first signal.
  • the first modulation constellation diagram in S902 includes 16 first constellation points.
  • the 16 first constellation points are determined according to 16 second constellation points among the N second constellation points of the second modulation constellation diagram.
  • N is a positive integer greater than 16.
  • N may be 64, or N may be 256, without limitation.
  • the second modulation constellation diagram can be a modulation constellation diagram of 64-QAM (that is, the modulation constellation diagram shown in (a) in Figure 10); or, when N is 256, the second modulation constellation diagram can be a modulation constellation diagram of 256-QAM (that is, the modulation constellation diagram shown in (b) in Figure 10).
  • the second modulation constellation may also be a modulation constellation of 1024-QAM.
  • the first modulation constellation can be used to transmit 4 bits of information.
  • Each constellation point set corresponds to a fluctuation value, that is, the xth fluctuation value can be determined according to the difference between the maximum value and the minimum value of the distance between the second constellation point in the xth constellation point set and the origin.
  • X such as there are constellation point set 1, constellation point set 2, and constellation point set 3
  • the constellation point farthest from the origin in constellation point set 1 is second constellation point 1
  • the constellation point closest to the origin is second constellation point 2
  • the constellation point farthest from the origin in constellation point set 2 is second constellation point 3
  • the constellation point closest to the origin is second constellation point 4
  • the constellation point farthest from the origin in constellation point set 3 is second constellation point 5
  • the constellation point closest to the origin is second constellation point 6.
  • each constellation point set may include one or more constellation point subsets among the M constellation point subsets corresponding to the N second constellation points.
  • N second constellation points can be divided into M constellation point subsets.
  • the distance between the second constellation point in each constellation point subset and the origin is equal.
  • the distances between the N second constellation points and the origin may be determined respectively, and the second constellation points with the same distances are regarded as a constellation point subset.
  • constellation point subset 1 may include second constellation point 1-second constellation point 4
  • constellation point subset 2 may include second constellation point 5-second constellation point 11
  • constellation point subset 3 may include second constellation point 12-second constellation point 19.
  • the multiple constellation point subsets may be multiple adjacent constellation point subsets among the M constellation point subsets arranged in the first numerical order.
  • the first value is the distance between the second constellation point and the origin, and the number of all second constellation points in the plurality of constellation point subsets is greater than or equal to 16.
  • the M constellation point subsets may be arranged in ascending order of the first numerical values, or the M constellation point subsets may be arranged in descending order of the first numerical values.
  • constellation point subset 1 For example, taking the case where there are three constellation point subsets (such as constellation point subset 1, constellation point subset 2, and constellation point subset 3) as an example, it is assumed that the distance between the second constellation point in constellation point subset 1 and the origin is a first value 1, the distance between the second constellation point in constellation point subset 2 and the origin is a first value 2, the distance between the second constellation point in constellation point subset 3 and the origin is a first value 3, and the first value 1 ⁇ first value 2 ⁇ first value 3.
  • the arrangement order of the three constellation point subsets is constellation point subset 1, constellation point subset 2, and constellation point subset 3; or, when the M constellation point subsets are arranged in order from large to small according to the first values, the arrangement order of the three constellation point subsets is constellation point subset 3, constellation point subset 2, and constellation point subset 1.
  • the constellation point subsets included in the constellation point set can be multiple adjacent constellation point sets in the M constellation point subsets arranged in sequence. For example, taking the existence of constellation point subset 1, constellation point subset 2, and constellation point subset 3 arranged in sequence as an example, assuming that the number of all second constellation point sets in constellation point subset 1 and constellation point subset 2 is greater than or equal to 16, and the number of all second constellation point sets in constellation point subset 2 and constellation point subset 3 is greater than or equal to 16, then, the constellation point set can include constellation point subset 1 and constellation point subset 2, or, the constellation point set can include constellation point subset 2 and constellation point subset 3, or, the constellation point set can include constellation point subset 1, constellation point subset 2, and constellation point subset 3.
  • each constellation point set may include one constellation point subset or multiple adjacent constellation point subsets in the M constellation point subsets, so that the fluctuation value corresponding to each constellation point set can be made smaller (that is, the difference in the distance between the second constellation point in each constellation point set and the origin is smaller), thereby ensuring that the fluctuation value corresponding to the 16 second constellation points is as small as possible, and the perception performance of the first signal can be improved while ensuring a certain transmission rate.
  • the transmitting end device or the receiving end device can determine 16 first constellation points according to the 16 second constellation points in the constellation point set.
  • the 16 first constellation points may include some second constellation points of each constellation point subset; or, the 16 first constellation points may include all second constellation points of at least one constellation point subset and some second constellation points of the remaining constellation point subsets.
  • the 16 first constellation points may include 4 second constellation points in each constellation point subset.
  • the 16 first constellation points may include any second constellation point belonging to constellation point subset 1 in each quadrant, any second constellation point belonging to constellation point subset 2 in each quadrant, any second constellation point belonging to constellation point subset 3 in each quadrant, and any second constellation point belonging to constellation point subset 4 in each quadrant.
  • the 16 first constellation points may include 12 second constellation points in the constellation point subset and 4 second constellation points in constellation point subset 1 (such as the 4 second constellation points in constellation point subset 1 can be any second constellation point belonging to constellation point subset 1 in each quadrant).
  • the 16 first constellation points can be all the second constellation points in the constellation point subset; if the number of second constellation points in the constellation point subset is greater than 16, the 16 first constellation points can be any four second constellation points belonging to the constellation point subset in each quadrant.
  • the present application proposes a method for determining 16 first constellation points, and the specific steps may be as shown in FIG. 11 below:
  • the second constellation point 1, the second constellation point 3, the second constellation point 6, and the second constellation point 9 can be connected to form a diagonal line, and the second constellation points below the diagonal line are diagonally symmetrical with the second constellation points above the diagonal line, that is, the distance from the second constellation point 2' to the origin is equal to the distance from the second constellation point 2 to the origin, the distance from the second constellation point 4' to the origin is equal to the distance from the second constellation point 4 to the origin, the distance from the second constellation point 5' to the origin is equal to the distance from the second constellation point 5 to the origin, the distance from the second constellation point 6' to the origin is equal to the distance from the second constellation point 6 to the origin, the distance from the second constellation point 7' to the origin is equal to the distance from the second constellation point 7 to the origin, and the distance from the second constellation point 8' to the origin is equal to the distance from the second constellation point 8 to the origin, then, the distances from the 16 second constellation points in the second quadrant to the origin can be determined.
  • the order of the constellation point subsets is constellation point subset 1, constellation point subset 2, constellation point subset 3, constellation point subset 4, constellation point subset 5, constellation point subset 6, constellation point subset 7, constellation point subset 8, and constellation point subset 9.
  • the order of the M constellation point subsets is constellation point subset 9, constellation point subset 8, constellation point subset 7, constellation point subset 6, constellation point subset 5, constellation point subset 4, constellation point subset 3, constellation point subset 2, and constellation point subset 1.
  • the second constellation point subset, and the third constellation point subset are less than 16 then continue to determine whether the number of all second constellation points in the first constellation point subset, the second constellation point subset, the third constellation point subset, and the fourth constellation point subset is greater than or equal to 16, and so on, until the number of second constellation points in the multiple constellation point subsets is greater than or equal to 16, at which point the first constellation point set is the multiple constellation point subsets.
  • constellation point set 4 and constellation point set 6 can be determined. Further, the transmitting end device can determine 16 second constellation points according to any constellation point set (such as determining 16 second constellation points from constellation point set 4, or determining 16 second constellation points from constellation point set 6), or the transmitting end device can determine 16 second constellation points according to the constellation point set corresponding to the minimum fluctuation value (that is, determining 16 second constellation points from constellation point set 6).
  • constellation point set 1 constellation point set 2
  • constellation point set 3 the transmitting end device can determine 16 second constellation points according to any constellation point set (such as determining 16 second constellation points from constellation point set 1, or determining 16 second constellation points from constellation point set 2, or determining 16 second constellation points from constellation point set 3).
  • the determination of the 16 first constellation points according to the 16 second constellation points may refer to the above description of determining the first constellation points, which will not be described in detail herein.
  • Part of the second constellation points of the second constellation point subset includes any one or more second constellation points belonging to the second constellation point subset in each quadrant; or part of the second constellation points of the first constellation point subset includes any one or more second constellation points belonging to the first constellation point subset in each quadrant.
  • one or more second constellation points can be determined from each quadrant, which can ensure that the first constellation points determined according to the second constellation points are evenly distributed in the first modulation constellation diagram as much as possible, thereby improving the transmission rate of the first signal and improving the effectiveness of communication.
  • constellation point set 6 includes a first constellation point subset (such as constellation point subset 6) and a second constellation point subset (such as constellation point subset 7)) as an example
  • the 16 first constellation points may be all the second constellation points in constellation point subset 6 and some of the second constellation points in constellation point subset 7.
  • Part of the second constellation points in constellation point subset 7 may be any second constellation point belonging to constellation point subset 7 in each quadrant.
  • the first modulation constellation diagram can transmit 4 bits of information, and the corresponding relationship between the positions of the above 16 first constellation points in the first modulation constellation diagram and the bit value of each information can be shown in the following Table 6:
  • the denominator in Table 6 is This is to normalize the energy of the first modulation constellation.
  • the 16 first constellation points can be as shown in Figure 14 below (the 16 first constellation points are black dots), and the 16 first constellation points are all the second constellation points in constellation point subset 6 (i.e., 12 second constellation points), and the second constellation point belonging to constellation point subset 7 that is closest to the horizontal axis in each quadrant (i.e., 4 second constellation points).
  • the positions of the 16 first constellation points in the first modulation constellation diagram may include:
  • the denominator in Table 7 is This is to normalize the energy of the first modulation constellation.
  • the 16 first constellation points may further include a third constellation point.
  • the third constellation point is the intersection of the circle corresponding to the fourth constellation point and the circle corresponding to the fifth constellation point.
  • the third constellation point may be understood as the fourth constellation point after the position is adjusted.
  • the fourth constellation point is a second constellation point in each quadrant that is not determined as a first constellation point and belongs to a subset of the first constellation point, the center of the circle corresponding to the fourth constellation point is the origin, and the radius is the distance between the fourth constellation point and the origin.
  • the sixth constellation point is a second constellation point that is determined as a first constellation point in each quadrant and belongs to a subset of the first constellation points.
  • the Euclidean distance between the third constellation point in each quadrant and any second constellation point in the constellation point set can be increased (for example, the Euclidean distance between the third constellation point and the fifth constellation point in each quadrant is greater than the Euclidean distance between the fourth constellation point and the fifth constellation point). Since the distance between the third constellation point and the origin is equal to the distance between the fourth constellation point and the origin, the transmission rate of the first signal can be improved without reducing the perception performance of the first signal, thereby improving the effectiveness of communication.
  • the second preset threshold may be predefined, or the second preset threshold may be determined according to an actual communication situation or an actual communication scenario without limitation.
  • the transmitting end device may first determine a third constellation point (which may be recorded as third constellation point 1) in a quadrant (such as the second quadrant), and when determining a third constellation point (which may be recorded as third constellation point 2) in another quadrant (such as the first quadrant), a fourth constellation point and a fifth constellation point that are farther away from the third constellation point 1 may be selected, and then the third constellation point 2 may be determined according to the intersection of the circle corresponding to the fourth constellation point and the circle corresponding to the fifth constellation point, so as to ensure that the Euclidean distance between the third constellation point 2 and the third constellation point 1 is greater than or equal to the second preset threshold.
  • the Euclidean distances of the third constellation points in different quadrants can be ensured to be large, the transmission rate of the first signal can be increased, and thus the effectiveness of communication can be improved.
  • the 16 first constellation points can be as shown in Figure 16 below (the 16 first constellation points are black dots), and the 16 first constellation points can include all the second constellation points in constellation point subset 7 (that is, 8 second constellation points), four sixth constellation points (the sixth constellation point is the second constellation point located in the middle of the second constellation points of constellation point subset 7 in each quadrant and belongs to constellation point subset 6), and four third constellation points (the third constellation point is the fourth constellation point after the position is adjusted).
  • the third constellation point may be the intersection of a circle corresponding to the fourth constellation point and a circle corresponding to the fifth constellation point.
  • a third constellation point may be determined in other quadrants.
  • the radius of the circle corresponding to the fourth constellation point is The radius of the circle corresponding to the fifth constellation point (i.e. the distance between the fifth constellation point and the sixth constellation point) is
  • the positions of the 16 first constellation points in the first modulation constellation diagram may be:
  • the first modulation constellation diagram can transmit 4 bits of information, and the corresponding relationship between the positions of the above 16 first constellation points in the first modulation constellation diagram and the bit value of each information can be shown in the following Table 9:
  • the denominator in Table 9 is This is to normalize the energy of the first modulation constellation.
  • the 16 first constellation points can be determined according to the second constellation points in the constellation point subset.
  • the 16 first constellation points may be determined as the 16 second constellation points in the constellation point subset 13, or the 16 first constellation points may be determined as the 16 second constellation points in the constellation point subset 17, or the 16 first constellation points may be determined as the 16 second constellation points in the constellation point subset 23.
  • the 16 first constellation points can be directly determined based on a constellation point subset in the one or more constellation point subsets, that is, the fluctuation value corresponding to the one or more constellation point subsets is 0, which can improve the perception performance while ensuring the transmission rate.
  • the method for determining 16 first constellation points by the transmitting end device shown in FIG. 11 is also applicable to determining 16 first constellation points by the receiving end device.
  • the transmitting end device can determine 16 second constellation points according to the constellation point set, and can ensure that the fluctuation values corresponding to the 16 second constellation points are as small as possible, thereby improving the perception performance; at the same time, the transmitting end device can determine the 16 first constellation points according to the method shown in S1105, and provide several feasible solutions for determining the 16 first constellation points.
  • the first signal can be modulated by QPSK, 16-QAM, or 16-P-QAM (that is, the modulation constellation diagram of 16-P-QAM is the first modulation constellation diagram), and the simulation diagram of the perceptual performance of the first signal can be shown in Figure 17 below, where the horizontal axis is the signal-to-noise ratio and the vertical axis is the root mean square difference.
  • the signal-to-noise ratio of 16-QAM is approximately 17dB
  • the signal-to-noise ratios of QPSK and 16-P-QAM are similar, approximately 14dB, that is, the perceptual performance of 16-P-QAM is better than the perceptual performance of 16-QAM (the perceptual performance is improved by 3dB) and is close to the perceptual performance of QPSK.
  • the first signal can be modulated by 16-QAM or 16-P-QAM (that is, the modulation constellation diagram of 16-P-QAM is the first modulation constellation diagram), and the simulation diagram of the communication performance of the first signal can be shown in Figure 18 below, where the horizontal axis is the signal-to-noise ratio and the vertical axis is the block error rate (BLER).
  • the horizontal axis is the signal-to-noise ratio
  • BLER block error rate
  • the signal-to-noise ratio of 16-QAM is approximately 7.2dB
  • the signal-to-noise ratio of 16-P-QAM is approximately 7.6dB, that is, the communication performance of 16-P-QAM is lost by approximately 0.4dB compared with 16-QAM, which is a lower loss.
  • 16-P-QAM can take into account both communication performance and perception performance.
  • the execution subject may execute some or all of the steps in the embodiments of the present application, and these steps or operations are only examples.
  • the embodiments of the present application may also execute other operations or variations of various operations.
  • the various steps may be executed in different orders presented in the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application need to be executed.
  • the present application also provides a communication device, which is used to implement the above various methods.
  • the communication device can be the sending end device in the above method embodiment, or a device including the above sending end device, or a component that can be used for the sending end device; or, the communication device can be the above method embodiment
  • the embodiment of the present application can divide the functional modules of the communication device according to the above method embodiment.
  • each functional module can be divided according to each function, or two or more functions can be integrated into one processing module.
  • the above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.
  • FIG19 shows a schematic diagram of the structure of a transmitting end device 190.
  • the transmitting end device 190 includes a processing module 1901 and a transceiver module 1902.
  • the transmitting device 190 may also include a storage module (not shown in FIG. 19 ) for storing program instructions and data.
  • the transmitting end device 190 provided in this embodiment can execute the above method, the technical effects that can be obtained can refer to the above method embodiments and will not be repeated here.
  • FIG20 shows a schematic diagram of the structure of a receiving end device 200.
  • the receiving end device 200 includes a processing module 2001 and a transceiver module 2002.
  • the function/implementation process of the processing module 2001 in FIG20 can be implemented by the processor 801 in the communication device 80 shown in FIG8 calling the computer execution instructions stored in the memory 803.
  • the function/implementation process of the transceiver module 2002 in FIG20 can be implemented by the communication interface 804 in the communication device 80 shown in FIG8.
  • the function/implementation process of the transceiver module 2002 can be implemented through the input and output interface (or communication interface) of the chip or the chip system, and the function/implementation process of the processing module 2001 can be implemented through the processor (or processing circuit) of the chip or the chip system.
  • the transmitting device or receiving device described in the embodiment of the present application can be implemented by a general bus architecture.
  • Figure 21 is a structural diagram of a communication device 210 provided in an embodiment of the present application, and the communication device 210 includes a processor 2101 and a transceiver 2102.
  • the communication device 210 can be a transmitting device, or a chip or module therein; or, the communication device 210 can be a receiving device, or a chip or module therein.
  • Figure 21 only shows the main components of the communication device 210.
  • the communication device may further include a memory 2103, and optionally, the memory may be integrated with the processor.
  • the RF circuit and antenna may be arranged independently of the processor performing baseband processing.
  • the RF circuit and antenna may be arranged remotely from the communication device.
  • the present application also provides a communication device, which includes a processor, and is used to implement the method in any of the above method embodiments.
  • the communication device can be a transmitting end device or a receiving end device in the above method embodiments.
  • the communication device further includes a memory.
  • the memory is used to store necessary computer programs and data.
  • the computer program may include instructions, and the processor may call the instructions in the computer program stored in the memory to instruct the communication device to execute the method in any of the above method embodiments.
  • the memory may not be in the communication device.
  • the communication device further includes an interface circuit, which is a code/data read/write interface circuit.
  • the interface circuit is used to receive computer execution instructions (the computer execution instructions are stored in the memory, may be directly read from the memory, or may pass through other devices) and transmit them to the processor.
  • the communication device further includes a communication interface, and the communication interface is used to communicate with a module outside the communication device.
  • the present application also provides a computer-readable storage medium on which a computer program or instruction is stored.
  • a computer program or instruction is stored on which a computer program or instruction is stored.
  • the present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the systems, devices and methods described in the present application can also be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, i.e., they may be located in one place, or they may be distributed over multiple network units.
  • the components shown as units may or may not be physical units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above embodiments it can be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • a software program it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes (or functions) described in the embodiments of the present application are implemented.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium may be any available medium that a computer can access or may contain one or more servers, data centers and other data storage devices that can be integrated with the medium.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

L'invention concerne des procédés et un appareil de transmission de signal, qui permettent à des procédés de modulation d'obtenir un équilibre entre les performances de détection d'un premier signal et le débit de transmission. Un procédé comprend les étapes suivantes : le dispositif de transmission acquiert un premier signal, et transmet un premier signal modulé, le premier signal modulé est déterminé au moyen d'une modulation basée sur un premier diagramme de constellation de modulation, le premier diagramme de constellation de modulation comprend 16 premiers points de constellation, les 16 premiers points de constellation sont déterminés sur la base de 16 seconds points de constellation parmi N seconds points de constellation d'un second diagramme de constellation de modulation, une valeur de fluctuation correspondante des 16 seconds points de constellation est inférieure ou égale à une première valeur seuil prédéfinie, la valeur de fluctuation est déterminée sur la base de la différence entre une valeur maximale et une valeur minimale de la distance entre les 16 seconds points de constellation et un point d'origine, et N est un nombre entier positif supérieur à 16.
PCT/CN2024/120153 2024-01-19 2024-09-20 Procédés et appareil de transmission de signal Pending WO2025152490A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202410084749.2A CN120358121A (zh) 2024-01-19 2024-01-19 信号传输方法及装置
CN202410084749.2 2024-01-19

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102868482A (zh) * 2011-07-08 2013-01-09 中兴通讯股份有限公司 多级编码调制方法及装置
US20130127558A1 (en) * 2011-11-17 2013-05-23 Intel Mobile Communications GmbH Method for Providing a Modulation Scheme
CN108702219A (zh) * 2016-03-08 2018-10-23 骁阳网络有限公司 降低相位失真影响的自适应星座图

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102868482A (zh) * 2011-07-08 2013-01-09 中兴通讯股份有限公司 多级编码调制方法及装置
US20130127558A1 (en) * 2011-11-17 2013-05-23 Intel Mobile Communications GmbH Method for Providing a Modulation Scheme
CN108702219A (zh) * 2016-03-08 2018-10-23 骁阳网络有限公司 降低相位失真影响的自适应星座图

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