WO2022061604A1 - Dispositif électronique et procédé d'obtention d'enveloppe de signal - Google Patents

Dispositif électronique et procédé d'obtention d'enveloppe de signal Download PDF

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Publication number
WO2022061604A1
WO2022061604A1 PCT/CN2020/117197 CN2020117197W WO2022061604A1 WO 2022061604 A1 WO2022061604 A1 WO 2022061604A1 CN 2020117197 W CN2020117197 W CN 2020117197W WO 2022061604 A1 WO2022061604 A1 WO 2022061604A1
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Prior art keywords
signal
point
signal envelope
envelope
points
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PCT/CN2020/117197
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English (en)
Chinese (zh)
Inventor
李翔
侯晓林
王新
李安新
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株式会社Ntt都科摩
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Priority to PCT/CN2020/117197 priority Critical patent/WO2022061604A1/fr
Publication of WO2022061604A1 publication Critical patent/WO2022061604A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile

Definitions

  • the present disclosure relates to the field of wireless communication, and more particularly, to a method for acquiring a signal envelope and a corresponding electronic device.
  • holographic communication needs to be performed in a large order of magnitude, for example, in the order of Tbps.
  • the spectral efficiency of the existing 5G technology is about a dozen bps/Hz, which cannot meet the requirements of 6G communication technology.
  • Only based on high frequency (such as 100-300GHz) and ultra-large bandwidth (such as bandwidth above 10GHz) can it be expected to achieve a data rate of the order of Tbps.
  • the power consumption of the sampling module in the high-frequency ultra-large bandwidth system will increase by tens to hundreds of times. Therefore, a very large-scale MIMO system using low-precision analog-to-digital conversion/digital-to-analog conversion (ADC/DAC) in large-scale communication is proposed, in order to reduce the cost and power consumption of a single transceiver unit (TxRU), and realize a large number of transceiver units. Deploy, and increase the number of streams.
  • ADC/DAC analog-to-digital conversion/digital-to-analog conversion
  • low-precision quantization technology will introduce non-negligible nonlinear quantization errors, and low-precision quantization is related to the signal, which greatly increases the difficulty of system design and affects system performance.
  • low-precision precoding needs to consider signal-related quantization errors, which makes system design difficult and complex.
  • direct quantization precoding Squared-infinity norm Douglas-Rachford Splitting (SQUID) precoding algorithm and Branch and Bound (Branch and Bound) precoding algorithm are proposed.
  • SQUID Squared-infinity norm Douglas-Rachford Splitting
  • Branch and Bound Branch and Bound precoding algorithm.
  • a linear precoding matrix can be obtained according to the channel information, and its output can be directly quantized to obtain a nonlinear signal to be transmitted.
  • the SQUID precoding algorithm and the brute force search precoding algorithm design the main body of the precoder in a nonlinear way. Specifically, the SQUID precoding algorithm considers the quantization error, and thus has better performance.
  • the SQUID precoding algorithm itself requires a large number of iterations and is related to data, resulting in high complexity, and it is difficult to design a practical algorithm to take into account the complexity.
  • the discrete emission signal constraints need to be removed in the solution process and quantized at the end of the algorithm, so it is difficult to guarantee the optimal solution.
  • the brute force search precoding algorithm can obtain the theoretical optimal solution, but it has the highest complexity and is difficult to be practical.
  • an electronic device includes a processing unit configured to obtain a first point on a signal envelope, wherein the signal envelope is an envelope of a set of possible received signals when transmitting signals by the electronic device using low precision quantization, according to points on the newly obtained signal envelope determine candidate points, and select a second point from the candidate points to obtain the signal envelope from the points on the newly obtained signal envelope and the second point part of , and update the points on the newly obtained signal envelope through the second point; repeatedly determine candidate points according to the points on the newly obtained signal envelope, and select the second point from the candidate points to The point on the newly obtained signal envelope and the second point obtain a part of the signal envelope, and the point on the newly obtained signal envelope is updated by the second point, until the obtained point satisfies the first predetermined Conditioned signal envelope.
  • a method for obtaining a signal envelope comprising: obtaining a first point on a signal envelope, wherein the signal envelope is when a signal is transmitted by the electronic device using low-precision quantization The envelope of a possible set of received signals; candidate points are determined based on the points on the newly obtained signal envelope, and a second point is selected from the candidate points to be based on the points on the newly obtained signal envelope and all obtaining a part of the signal envelope from the second point, and updating the points on the newly obtained signal envelope through the second point; repeatedly determining candidate points according to the points on the newly obtained signal envelope, Selecting a second point among the candidate points to obtain a part of the signal envelope according to the point on the newly obtained signal envelope and the second point, and to update the newly obtained signal envelope through the second point until the signal envelope that satisfies the first predetermined condition is obtained.
  • FIG. 1 is a schematic diagram illustrating a received signal according to an embodiment of the present disclosure when PSK modulation is used.
  • FIG. 2 is a schematic block diagram illustrating an electronic device according to an embodiment of the present disclosure.
  • FIG. 3A shows a schematic diagram of the first point on the signal envelope obtained by the processing unit 210 .
  • 3B is a schematic diagram illustrating that the processing unit determines candidate points according to a first point on the signal envelope, and selects a second point from the candidate points to obtain a part of the signal envelope from the first point and the second point .
  • FIGS. 3C-3E are diagrams illustrating that the processing unit repeatedly determines candidate points from points on the newly obtained signal envelope, and selects a second point from the candidate points to be based on the newly obtained signal envelope. point and the second point to obtain a part of the signal envelope, and update the point on the newly obtained signal envelope through the second point until a schematic diagram of the signal envelope that satisfies the first predetermined condition is obtained.
  • 3F is a schematic diagram illustrating an example situation where the processing unit stops determining the signal envelope if the edge closest to the ideal received signal is found.
  • FIG. 4 is a schematic diagram illustrating that a combination of signals to be transmitted that can obtain a received signal satisfying a second predetermined condition is selected according to a signal envelope and a signal envelope according to an example of the present invention.
  • FIG. 5 is a flowchart of a method for obtaining a signal envelope according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a hardware structure of a device involved according to an embodiment of the present disclosure.
  • the same reference numbers refer to the same elements throughout.
  • the terminals described herein may include various types of terminals, such as user terminals (User Equipment, UE), mobile terminals (or referred to as mobile stations) or fixed terminals.
  • UE User Equipment
  • mobile terminals or referred to as mobile stations
  • fixed terminals for the sake of convenience, in the following, sometimes mutual The terminal and the UE are used interchangeably.
  • receiver and receiving device are sometimes used interchangeably hereinafter.
  • FIG. 1 is a schematic diagram illustrating a received signal according to an embodiment of the present disclosure when PSK modulation is used.
  • the received signal is equal to SNR max is the maximum signal-to-noise ratio, and Sk is the kth signal to be transmitted.
  • SNR max is the maximum signal-to-noise ratio
  • Sk is the kth signal to be transmitted.
  • the received signal is distributed on the outermost circle in FIG. 1 .
  • the set of possible received signals is a discrete set.
  • the lines inside the circles in Figure 1 show the envelope of the set of possible received signals as a discrete set when using low precision quantization of the signal to be transmitted.
  • the possible received signal does not appear outside the envelope.
  • the ideal received signal ie, the received signal obtained by quantizing the transmitted signal with high precision
  • the ideal received signal cannot be achieved by using the low-precision quantization signal to be transmitted.
  • points on the signal envelope have larger amplitudes, ie, have a higher SNR, than points within the signal envelope. Therefore, it is necessary to determine the signal envelope to obtain the point closest to the ideal received signal or the point with the smallest BER as the optimal point in the possible received signal when using the low-precision quantization signal to be transmitted. .
  • the signal envelope is shown in a two-dimensional graph, but it should be understood that the signal envelope may be an envelope in a multi-dimensional space.
  • FIG. 2 is a schematic block diagram illustrating an electronic device according to an embodiment of the present disclosure.
  • the sending device 200 may include a processing unit 210 .
  • the electronic device 200 may also include other components, however, since these components are not related to the content of the embodiments of the present disclosure, their illustration and description are omitted here.
  • the processing unit 210 obtains a first point on the signal envelope, which is the envelope of a possible set of received signals when transmitting signals by the electronic device using low precision quantization.
  • the low-precision quantization may have a quantization precision of less than 3 bits
  • the high-precision quantization may have a quantization precision of more than 8 bits.
  • specific quantized values for low-precision quantities and high-precision quantities can be determined according to the specific needs of the communication system.
  • the processing unit 210 may obtain the first point on the signal envelope by performing direct quantization matched filtering on the transmitted signal.
  • the matched filter can be designed according to the reference signal.
  • the reference signal may be a channel state reference signal (CSI-RS). Since the matched filter is linear, the first point on the signal envelope can be obtained by nonlinearly quantizing the output of the matched filter according to the requirement of low-precision quantization.
  • the first point x 0 of the directly quantized matched filter output can be calculated by Equation 1 below:
  • H is the channel matrix Q() is the quantization function of the transmitting end.
  • the processing unit 210 may also obtain the first point on the signal envelope by solving the maximization of the signal-to-noise ratio under the box constraint.
  • FIG. 3A shows a schematic diagram of the first point on the signal envelope obtained by the processing unit 210 .
  • the points on the constellation diagram represent possible received signals when the transmitted signal is quantized with low precision, wherein the lines formed by the outermost points form the envelope of the set of possible received signals.
  • the processing unit 210 may obtain the first point 310 on the signal envelope by performing direct quantization matched filtering on the transmitted signal, as shown by the five-pointed star in FIG. 3A .
  • the five-pointed star represents the point on the most recently acquired envelope of the signal.
  • PSK modulation is used as an example for description.
  • DAC digital-to-analog conversion
  • PA power amplifier
  • the processing unit 210 determines candidate points according to the points on the newly obtained signal envelope, and selects a second point from the candidate points, so that the points on the newly obtained signal envelope and the The second point obtains a portion of the signal envelope, and the points on the newly obtained signal envelope are updated by the second point.
  • a candidate point may be determined according to the first point, and a second point may be selected from the candidate points, so that the first point and the second point may be selected according to the first point and the second point.
  • a portion of the signal envelope is obtained and the points on the newly obtained signal envelope are updated by the second point selected.
  • a specific point on a signal envelope and a signal vector to be transmitted corresponding to a point adjacent to the specific point on the envelope have opposite signs on only one element.
  • the distribution structure of the set of transmit signals can be described by a specific model structure, such as a lattice structure, when the transmit signal is quantized with low precision, and can also be described by the Lattice structure when the transmit signal is quantized with low precision.
  • the distribution structure of the set of received signals when using low-precision quantization to transmit signals, the set of transceiving signals can be described using the Lattice structure instead of using randomly distributed point sets.
  • the low-precision quantized transmit signal xi corresponding to the first point on the signal envelope is as follows,
  • the following candidate points x i+1 of the low-precision quantized transmit signal x i corresponding to the first point can be obtained by inverting the sign on only one element:
  • a second point may be selected from the determined candidate points.
  • the processing unit 210 only needs to consider a few candidate points each time to determine the second point.
  • FIG. 3B shows that the processing unit 210 determines candidate points according to the first point 310 on the signal envelope, and selects a second point from the candidate points to obtain the signal envelope from the first point 310 and the second point Part of the schematic.
  • the processing unit 210 determines candidate points according to the first point 310 on the signal envelope, as shown by the small circle with a dot in the middle in FIG. 3B .
  • the number of candidate points may be determined according to the number of transmit antennas.
  • the processing unit 210 selects the second point 320 from the candidate points, shown by the five-pointed star in Figure 3B. As shown in FIG. 3B, the connection between the first point 310 and the second point 320 forms part of the signal envelope.
  • the signal envelope may be an envelope in a multi-dimensional space.
  • the processing unit 210 may determine a candidate point according to the first point, and determine a first facet on the signal envelope according to the newly obtained point on the signal envelope and the candidate point.
  • the first surface may be a multi-dimensional surface composed of a first point and candidate points determined according to the first point. Then, the processing unit 210 may form a portion of the signal envelope from an edge of the first face and a second point selected from the candidate points. For example, after the first point and candidate points are obtained, a multi-dimensional surface can be determined according to a Grift wrapping algorithm, and a signal envelope is formed according to an edge of the first surface and a second point selected from the candidate points.
  • the processing unit 210 repeatedly determines candidate points according to the points on the newly obtained signal envelope, and selects a second point from the candidate points, so as to determine the candidate points according to the points on the newly obtained signal envelope and the A second point obtains a portion of the signal envelope, and points on the newly obtained signal envelope are updated through the second point until a signal envelope satisfying the first predetermined condition is obtained.
  • the processing unit 210 may repeat the above steps until a complete signal envelope is obtained.
  • the processing unit 210 may also obtain an ideal received signal for the transmitted signal, and when determining candidate points, determine the candidate points according to the ideal received signal direction and points on the newly obtained signal envelope. In this case, the processing unit 210 may repeat the above steps until a portion closest to the ideal received signal is found.
  • 3C-3E illustrate that the processing unit 210 repeatedly determines candidate points according to the points on the newly obtained signal envelope, and selects a second point from the candidate points, so as to determine the candidate points according to the newly obtained signal envelope and the second point to obtain a part of the signal envelope, and update the points on the newly obtained signal envelope through the second point until a schematic diagram of the signal envelope that satisfies the first predetermined condition is obtained.
  • the processing unit updates the selected point 320 to the point on the newly obtained signal envelope.
  • the processing unit 210 determines candidate points according to the points 320 on the newly obtained signal envelope, as shown by the small circle with a dot in the middle in FIG. 3C .
  • the processing unit 210 selects the second point 330 from the candidate points, shown by the five-pointed star in Figure 3C. As shown in Figure 3C, the line between the point 320 on the newly acquired signal envelope and the newly selected second point 330 forms part of the signal envelope. Furthermore, the processing unit 210 may update the selected point 330 to a point on the newly obtained signal envelope.
  • the processing unit 210 determines candidate points according to the points 330 on the newly obtained signal envelope, as shown by the small circle with a dot in the middle in FIG. 3D .
  • the processing unit 210 selects the second point 340 from the candidate points, shown by the five-pointed star in Figure 3D.
  • the line between the point 330 on the newly acquired signal envelope and the newly selected second point 340 forms part of the signal envelope.
  • the processing unit 210 may update the selected point 340 to a point on the newly obtained signal envelope. The above steps can be repeated until the complete signal envelope shown by the solid line in Figure 3E is obtained.
  • the processing unit 210 forms part of the signal envelope from an edge of the first face and a second point selected from the candidate points, the processing unit 210 The formed part of the signal envelope may be taken as the current part, and the part of the signal envelope may be continued to be formed according to an edge of the current part and a second point selected from the candidate points.
  • the processing unit 210 may update the current portion with a portion of the newly formed signal envelope, and repeat the above steps until a signal envelope satisfying the first predetermined condition is obtained.
  • the signal envelope of the received signal can be obtained without calculating all possible received signals for the signal to be transmitted, and the computational complexity is reduced.
  • the processing unit 210 can stop determining the signal envelope when it finds the edge closest to the ideal received signal, and does not need to obtain the complete signal envelope.
  • 3F is a schematic diagram illustrating an example situation where the processing unit stops determining the signal envelope if the edge closest to the ideal received signal is found. As shown in FIG. 3F, the processing unit 210 may also obtain an ideal received signal 350 for the transmitted signal, and the processing unit 210 may determine that the line connecting point 320 and point 330 is the edge on the signal envelope closest to the ideal received signal . When the processing unit 210 finds an edge on the signal envelope formed by the points 320 and 330, it may stop determining the signal envelope.
  • the signal envelope of the received signal can be obtained without calculating all possible received signals for the signal to be transmitted and without the need for a complete signal envelope, which further reduces the complexity of the calculation Spend.
  • the processing unit 210 may further select a signal combination to be transmitted that can obtain a received signal that satisfies the second predetermined condition according to the signal envelope.
  • the signal combination to be transmitted that can obtain the received signal satisfying the second predetermined condition may be a combination of signals to be transmitted that minimizes the error rate of the receiving end.
  • receiving points closer to the signal envelope may also have better SNR. Therefore, according to another example of the present invention, the processing unit 210 may also obtain a point closer to the signal envelope as a signal envelope, and select a to-be-transmitted receiving signal that can obtain a received signal that satisfies the second predetermined condition according to the signal envelope and the signal envelope signal combination.
  • FIG. 4 is a schematic diagram illustrating that a combination of signals to be transmitted that can obtain a received signal satisfying a second predetermined condition is selected according to a signal envelope and a signal envelope according to an example of the present invention.
  • the squares represent points on the signal envelope, and the triangles represent points on the signal envelope that are closer to the signal envelope.
  • the processing unit 210 may determine the point 420 closest to the ideal received signal 410 among the points on the signal envelope and the points of the signal envelope, and According to point 420, a combination of signals to be transmitted that can obtain a received signal that satisfies the second predetermined condition is selected.
  • the processing unit further generates a precoding table according to the obtained signal combination to be transmitted.
  • the processing unit may generate the precoding table according to the modulation order of the transmission signal and the number of transmission streams. For example, when a signal is transmitted in a single stream, and the signal to be transmitted is modulated with QPSK and quantized with 1 bit, the processing unit 210 may generate the following precoding table 1:
  • the processing unit 210 can generate the following precoding table 2, in this case, the complete precoding table has 16 lines in total, Some of them are shown schematically in Table 2:
  • the electronic device 200 may be a transmitting device or a receiving device. In the case where the electronic device 200 is a receiving device, the electronic device 200 may further include a transmitting unit.
  • the sending unit may send the precoding table to the sending device.
  • the transmitting device may be a base station, and the receiving device may be a user equipment, and vice versa.
  • the transmitting unit of the receiving device may select the codes of the partial rows in the complete precoding table and transmit the codes to the transmitting device.
  • the transmitting device may receive a part of the complete precoding table, and perform phase rotation on the encoding of the part of the row to reconstruct the complete precoding table.
  • the transmitting unit of the receiving device may transmit the linear precoding matrix and the symbol correction bits to reduce signaling overhead.
  • the transmitting device can obtain the linear output of the signal to be transmitted according to the received linear precoding matrix, and use the sign correction bit to correct the linear output.
  • FIG. 5 is a flowchart of a signal envelope acquisition method 500 according to one embodiment of the present disclosure. Since the steps of the signal envelope acquisition method 500 correspond to the operations of the electronic device 200 described above with reference to the figures, the detailed description of the same content is omitted here for the sake of simplicity.
  • a first point on a signal envelope is obtained, wherein the signal envelope is the envelope of a possible set of received signals when the transmitted signal is quantized with low precision by the electronic device.
  • the first point on the signal envelope may be obtained by performing direct quantization matched filtering on the transmitted signal.
  • the matched filter can be designed according to the reference signal.
  • the reference signal may be a channel state reference signal (CSI-RS). Since the matched filter is linear, the first point on the signal envelope can be obtained by nonlinearly quantizing the output of the matched filter according to the requirement of low-precision quantization.
  • the first point of the directly quantized matched filter output can be calculated by the above formula 1.
  • the processing unit 210 can also obtain the first point on the signal envelope by solving the maximization of the signal-to-noise ratio under the box constraint. point.
  • step S502 candidate points may be determined according to the points on the newly obtained signal envelope, and a second point may be selected from the candidate points, so as to be based on the points on the newly obtained signal envelope and the A second point obtains a portion of the signal envelope, and points on the newly obtained signal envelope are updated by the second point.
  • a candidate point may be determined according to the first point, and a second point may be selected from the candidate points, so that according to the first point and the second point to obtain a portion of the signal envelope, and update the point on the newly obtained signal envelope by the selected second point.
  • a specific point on the signal envelope and the to-be-transmitted signal vector corresponding to a point adjacent to the specific point on the envelope have opposite signs on only one element.
  • the distribution structure of the set of transmitted signals when the transmitted signal is quantized with low precision can be described by a specific model structure, such as the Lattice structure
  • the distribution structure of the set of received signals when the transmitted signal is quantized with low precision can also be described by the Lattice structure. distribution structure.
  • the set of transceiving signals can be described using the Lattice structure instead of using randomly distributed point sets. Thus, only a few candidate points need to be considered each time to determine the second point.
  • step S503 candidate points may be repeatedly determined according to the points on the newly obtained signal envelope, and a second point may be selected from the candidate points, so that the points on the newly obtained signal envelope and the second point may be selected repeatedly. point to obtain a part of the signal envelope, and update the points on the newly obtained signal envelope through the second point until a signal envelope that satisfies the first predetermined condition is obtained.
  • the signal envelope of the received signal can be obtained without calculating all possible received signals for the signal to be transmitted, and the computational complexity is reduced.
  • step S503 the above steps may be repeated in step S503 until a complete signal envelope is obtained.
  • step S503 an ideal received signal for the transmitted signal may also be obtained, and when determining candidate points, the candidate points are determined according to the ideal received signal direction and points on the newly obtained signal envelope. In this case, the above steps can be repeated until the part closest to the ideal received signal is found.
  • the signal envelope of the received signal can be obtained without calculating all possible received signals for the signal to be transmitted and without the need for a complete signal envelope, which further reduces the complexity of the calculation Spend.
  • the method 500 shown in FIG. 5 may further include selecting a signal combination to be transmitted that can obtain a received signal satisfying the second predetermined condition according to the signal envelope.
  • the signal combination to be transmitted that can obtain the received signal satisfying the second predetermined condition may be a combination of signals to be transmitted that minimizes the error rate of the receiving end.
  • receiving points closer to the signal envelope may also have better SNR. Therefore, according to another example of the present invention, the processing unit 210 may also obtain a point closer to the signal envelope as a signal envelope, and select a to-be-transmitted receiving signal that can obtain a received signal that satisfies the second predetermined condition according to the signal envelope and the signal envelope signal combination.
  • the processing unit further generates a precoding table according to the obtained signal combination to be transmitted. Specifically, the processing unit may generate the precoding table according to the modulation order of the transmission signal and the number of transmission streams.
  • the precoding table has been described in detail above with reference to Table 1 and Table 2, so it is not repeated here.
  • the method 500 can be applied to a sending device as well as a receiving device. Where the method 500 is applied to the receiving device, the method 500 may further include transmitting the generated precoding table to the transmitting device.
  • the sending unit may select the codes of the partial rows in the complete precoding table and transmit them to the sending device.
  • the transmitting device may perform phase rotation on the encoding of the partial row to reconstruct the complete precoding table.
  • the transmitting unit may transmit the linear precoding matrix and the symbol correction bits to reduce signaling overhead.
  • the transmitting device can obtain the linear output with the transmitted signal according to the linear precoding matrix, and use the sign correction bit to correct the linear output.
  • each functional block may be implemented by one device that is physically and/or logically combined, or two or more devices that are physically and/or logically separated may be directly and/or indirectly (for example, By wired and/or wireless) connection, it is realized by the above-mentioned multiple devices.
  • FIG. 6 is a schematic diagram of a hardware structure of an involved device 600 (base station or terminal) according to an embodiment of the present disclosure.
  • the above-mentioned device 600 can be configured as a computer device that physically includes a processor 610, a memory 620, a memory 630, a communication device 640, an input device 650, an output device 660, a bus 660, and the like.
  • the word “device” may be replaced with a circuit, a device, a unit, or the like.
  • the hardware structures of the user terminal and the base station may include one or more devices shown in the figures, or may not include some devices.
  • processor 610 only one processor 610 is shown, but there may be multiple processors. Furthermore, processing may be performed by one processor, or by more than one processor simultaneously, sequentially, or in other ways. Additionally, the processor 610 may be mounted on more than one chip.
  • Each function of the device 600 is realized, for example, by reading predetermined software (programs) into hardware such as the processor 610 and the memory 620 to cause the processor 610 to perform calculations and to control communication by the communication device 640 , and control the reading and/or writing of data in the memory 620 and the memory 630 .
  • predetermined software programs
  • the processor 610 controls the entire computer by operating the operating system, for example.
  • the processor 610 may be constituted by a central processing unit (CPU, Central Processing Unit) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like.
  • CPU Central Processing Unit
  • the above-mentioned processing units and the like can be implemented by the processor 610 .
  • the processor 610 reads out programs (program codes), software modules, data, etc. from the memory 630 and/or the communication device 640 to the memory 620, and executes various processes according to them.
  • programs program codes
  • the program a program for causing a computer to execute at least a part of the operations described in the above-described embodiments may be employed.
  • the processing unit of the electronic device can be implemented by a control program stored in the memory 620 and operated by the processor 610, and other functional blocks can also be implemented similarly.
  • the memory 620 is a computer-readable recording medium, for example, can be composed of a read-only memory (ROM, Read Only Memory), a programmable read-only memory (EPROM, Erasable Programmable ROM), an electrically programmable read-only memory (EEPROM, Electrically EPROM), Random access memory (RAM, Random Access Memory) and at least one of other suitable storage media.
  • ROM read-only memory
  • EPROM programmable read-only memory
  • EEPROM Electrically programmable read-only memory
  • RAM Random Access Memory
  • Memory 620 may also be referred to as registers, cache, main memory (main storage), and the like.
  • the memory 620 may store executable programs (program codes), software modules, and the like for implementing the method according to an embodiment of the present disclosure.
  • the memory 630 is a computer-readable recording medium, and can be composed of, for example, a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a CD-ROM (Compact Disc ROM), etc.), Digital versatile discs, Blu-ray (registered trademark) discs), removable disks, hard drives, smart cards, flash memory devices (eg, cards, sticks, key drivers), magnetic stripes, databases , a server, and at least one of other suitable storage media.
  • Memory 630 may also be referred to as secondary storage.
  • the communication device 640 is hardware (transmitting and receiving device) used for communication between computers through wired and/or wireless networks, and is also called, for example, a network device, a network controller, a network card, a communication module, and the like.
  • the communication device 640 may include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like.
  • the above-mentioned sending unit and the like can be implemented by the communication device 640 .
  • the input device 650 is an input device (eg, keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside.
  • the output device 660 is an output device (eg, a display, a speaker, a Light Emitting Diode (LED, Light Emitting Diode) lamp, etc.) that implements output to the outside.
  • the input device 650 and the output device 660 may also have an integrated structure (eg, a touch panel).
  • each device such as the processor 610 and the memory 620 is connected via a bus 660 for communicating information.
  • the bus 660 may be constituted by a single bus, or may be constituted by different buses between devices.
  • the transmitting device and the receiving device may include a microprocessor, a digital signal processor (DSP, Digital Signal Processor), an application specific integrated circuit (ASIC, Application Specific Integrated Circuit), a programmable logic device (PLD, Programmable Logic Device), a field Programmable gate array (FPGA, Field Programmable Gate Array) and other hardware, can realize part or all of each functional block through the hardware.
  • DSP digital signal processor
  • ASIC Application Specific Integrated Circuit
  • PLD programmable logic device
  • FPGA Field Programmable Gate Array
  • the processor 610 may be installed by at least one of these pieces of hardware.
  • channels and/or symbols may also be signals (signaling).
  • signals can also be messages.
  • the reference signal may also be referred to as RS (Reference Signal) for short, and may also be referred to as a pilot (Pilot), a pilot signal, etc. according to the applicable standard.
  • a component carrier CC, Component Carrier
  • CC Component Carrier
  • the information, parameters, etc. described in this specification may be expressed by absolute values, may be expressed by relative values with respect to predetermined values, or may be expressed by corresponding other information.
  • the radio resource may be indicated by a prescribed index.
  • the formulas and the like using these parameters may also be different from those explicitly disclosed in this specification.
  • the information, signals, etc. described in this specification may be represented using any of a variety of different technologies.
  • data, commands, instructions, information, signals, bits, symbols, chips, etc. may be mentioned throughout the above description may be generated by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of them. combination to represent.
  • information, signals, etc. may be output from the upper layer to the lower layer, and/or from the lower layer to the upper layer.
  • Information, signals, etc. can be input or output via multiple network nodes.
  • Input or output information, signals, etc. can be stored in a specific place (eg, memory), and can also be managed through a management table. Input or output information, signals, etc. can be overwritten, updated or supplemented. Output messages, signals, etc. can be deleted. Input information, signals, etc. can be sent to other devices.
  • a specific place eg, memory
  • Input or output information, signals, etc. can be overwritten, updated or supplemented.
  • Output messages, signals, etc. can be deleted.
  • Input information, signals, etc. can be sent to other devices.
  • Notification of information is not limited to the mode/embodiment described in this specification, and may be performed by other methods.
  • the notification of information may be through physical layer signaling (eg, Downlink Control Information (DCI, Downlink Control Information), Uplink Control Information (UCI, Uplink Control Information)), upper layer signaling (eg, Radio Resource Control Information) (RRC, Radio Resource Control) signaling, broadcast information (Master Information Block (MIB, Master Information Block), System Information Block (SIB, System Information Block), etc.), Media Access Control (MAC, Medium Access Control) signaling ), other signals, or a combination thereof.
  • DCI Downlink Control Information
  • UCI Uplink Control Information
  • RRC Radio Resource Control Information
  • RRC Radio Resource Control
  • MAC Media Access Control
  • the physical layer signaling may also be referred to as L1/L2 (Layer 1/Layer 2) control information (L1/L2 control signal), L1 control information (L1 control signal), or the like.
  • the RRC signaling may also be called an RRC message, for example, an RRC connection setup (RRC Connection Setup) message, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, and the like.
  • the MAC signaling can be notified by, for example, a MAC control element (MAC CE (Control Element)).
  • notification of predetermined information is not limited to being performed explicitly, and may be performed implicitly (eg, by not performing notification of the predetermined information, or by notification of other information).
  • the determination can be performed by a value (0 or 1) represented by 1 bit, by a true or false value (Boolean value) represented by true (true) or false (false), or by a numerical comparison ( For example, a comparison with a predetermined value) is performed.
  • software, commands, information, etc. may be sent or received via a transmission medium.
  • a transmission medium For example, when sending from a website, server, or other remote source using wireline technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line, etc.) and/or wireless technology (infrared, microwave, etc.)
  • wireline technology coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line, etc.
  • wireless technology infrared, microwave, etc.
  • system and “network” are used interchangeably in this specification.
  • Base station BS, Base Station
  • radio base station eNB
  • gNB gNodeB
  • cell gNodeB
  • cell group femtocell
  • carrier femtocell
  • a base station may house one or more (eg, three) cells (also referred to as sectors). When the base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, and each smaller area can also pass through the base station subsystem (for example, indoor small base stations (Remote Radio Heads (RRH, RRH) Remote Radio Head)) to provide communication services.
  • the terms "cell” or “sector” refer to a portion or the entirety of the coverage area of the base station and/or base station subsystem in which the communication service is performed.
  • mobile station MS, Mobile Station
  • user terminal user terminal
  • UE User Equipment
  • terminal mobile station
  • a mobile station is also sometimes referred to by those skilled in the art as subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless Terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate term.
  • the radio base station in this specification may also be replaced with a user terminal.
  • each aspect/embodiment of the present disclosure can also be applied to a structure in which the communication between the radio base station and the user terminal is replaced by the communication between a plurality of user terminals (D2D, Device-to-Device).
  • the functions possessed by the above-mentioned electronic device may be regarded as functions possessed by the user terminal.
  • words like "up” and "down” can also be replaced with "side”.
  • the upstream channel can also be replaced by a side channel.
  • the user terminal in this specification can also be replaced with a wireless base station.
  • the functions possessed by the user terminal described above may be regarded as functions possessed by the first communication device or the second communication device.
  • a specific operation performed by a base station may also be performed by an upper node thereof depending on circumstances.
  • various actions performed for communication with a terminal can be performed through the base station, one or more networks other than the base station Nodes (for example, Mobility Management Entity (MME, Mobility Management Entity), Serving-Gateway (S-GW, Serving-Gateway), etc. can be considered, but not limited thereto), or a combination thereof.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • Serving-Gateway Serving-Gateway
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Advanced
  • LTE-B Long Term Evolution Beyond
  • LTE-Beyond Long Term Evolution Beyond
  • IMT-Advanced 4th Generation Mobile Communication System
  • 4G 4th generation mobile communication system
  • 5G 5th Generation Mobile Communication System
  • Future Radio Access Future Radio Access
  • New-RAT New Radio Access Technology
  • New Radio New Radio
  • NR New Radio
  • New Radio Access New Radio Access
  • NX New radio access
  • Future Generation Radio Access Future Generation Radio Access
  • GSM Global System for Mobile Communications
  • CDMA3000 Code Division Multiple Access 3000
  • UMB Ultra Mobile Broadband
  • IEEE 920.11 Wi-Fi (registered trademark)
  • IEEE 920.11 Wi-Fi (registered trademark)
  • any reference in this specification to an element using the designation "first”, “second” etc. is not intended to comprehensively limit the number or order of such elements. These names may be used in this specification as a convenient method of distinguishing two or more units. Thus, a reference to a first element and a second element does not imply that only two elements may be employed or that the first element must precede the second element in some form.
  • determining (determining) used in this specification may include various operations. For example, with regard to “judging (determining)”, calculating, computing, processing, deriving, investigating, looking up (eg, tables, databases, or other Searching in the data structure), confirming (ascertaining), etc. are regarded as “judgment (determination)”. In addition, regarding “judgment (determination)”, receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), accessing (accessing) (for example, access to data in the memory), etc., are regarded as “judgment (determination)".
  • connection refers to any connection or combination, direct or indirect, between two or more units, which can be It includes the following situations: between two units “connected” or “combined” with each other, there are one or more intermediate units.
  • the combination or connection between the units may be physical or logical, or may also be a combination of the two.
  • connecting can also be replaced by "accessing”.
  • two units may be considered to be electrically connected through the use of one or more wires, cables, and/or printed, and as a number of non-limiting and non-exhaustive examples, by using a radio frequency region , the microwave region, and/or the wavelengths of electromagnetic energy in the light (both visible and invisible) region, etc., are “connected” or “combined” with each other.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Dispositif électronique (200) et procédé d'obtention d'enveloppe de signal (500). Le dispositif électronique (200) comprend : une unité de traitement (210), configurée pour obtenir un premier point (310) sur une enveloppe de signal, l'enveloppe de signal étant une enveloppe d'un éventuel ensemble de signaux reçus lorsqu'un signal d'émission de quantification de faible précision est utilisé au moyen du dispositif électronique (200) ; la détermination de points candidats selon le point nouvellement obtenu sur l'enveloppe de signal, et la sélection d'un second point (320) à partir des points candidats, de manière à obtenir une partie de l'enveloppe de signal selon le point nouvellement obtenu sur l'enveloppe de signal et le second point (320), et la mise à jour du point nouvellement obtenu sur l'enveloppe de signal au moyen du second point (320) ; et la répétition de l'étape jusqu'à ce qu'une enveloppe de signal satisfaisant à une première condition prédéterminée soit obtenue.
PCT/CN2020/117197 2020-09-23 2020-09-23 Dispositif électronique et procédé d'obtention d'enveloppe de signal WO2022061604A1 (fr)

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CN104112137A (zh) * 2013-04-22 2014-10-22 富士通株式会社 对象边界提取方法和对象边界提取设备
CN105512665A (zh) * 2015-12-11 2016-04-20 中国测绘科学研究院 一种机载激光雷达点云数据边缘提取方法
CN110969624A (zh) * 2019-11-07 2020-04-07 哈尔滨工程大学 一种激光雷达三维点云分割方法
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JPH07264110A (ja) * 1994-03-17 1995-10-13 N T T Idou Tsuushinmou Kk チャネル複素包絡線推定方法
CN101494466A (zh) * 2008-01-25 2009-07-29 富士通株式会社 功率放大装置和功率放大器电源电压控制方法
CN103178806A (zh) * 2011-12-23 2013-06-26 中国科学院声学研究所 一种一维数据的包络提取方法及系统
CN104112137A (zh) * 2013-04-22 2014-10-22 富士通株式会社 对象边界提取方法和对象边界提取设备
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CN110969624A (zh) * 2019-11-07 2020-04-07 哈尔滨工程大学 一种激光雷达三维点云分割方法
CN111007517A (zh) * 2019-12-24 2020-04-14 芜湖美的厨卫电器制造有限公司 用于检测超声波的方法、装置、距离检测设备和饮水机
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