WO2020244392A1 - Signal sending method, signal receiving method, and communication apparatus - Google Patents

Signal sending method, signal receiving method, and communication apparatus Download PDF

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Publication number
WO2020244392A1
WO2020244392A1 PCT/CN2020/091622 CN2020091622W WO2020244392A1 WO 2020244392 A1 WO2020244392 A1 WO 2020244392A1 CN 2020091622 W CN2020091622 W CN 2020091622W WO 2020244392 A1 WO2020244392 A1 WO 2020244392A1
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WIPO (PCT)
Prior art keywords
signal
frequency domain
ofdm symbol
equal
communication device
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PCT/CN2020/091622
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French (fr)
Chinese (zh)
Inventor
陈磊
刘凤威
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华为技术有限公司
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Publication of WO2020244392A1 publication Critical patent/WO2020244392A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2697—Multicarrier modulation systems in combination with other modulation techniques
    • 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

Definitions

  • This application relates to the field of communication technology, in particular to the field of backscatter communication and cellular network communication fusion technology.
  • Backscatter communication (abbreviation: reflection communication) is a low-power, low-cost communication technology, and the widely used radio-frequency identification (RFID) is a typical backscatter Communication technology. Since power consumption is the core issue of low-cost IoT devices, reflective communication technology has a good prospect in the field of IoT.
  • RFID radio-frequency identification
  • radio frequency devices for signal modulation and amplification. These radio frequency devices include digital-to-analog converters, power amplifiers, crystal oscillators, etc., which usually have high power consumption characteristics.
  • the backscatter communication does not need these devices, it can reflect the received excitation signal and carry its own data on the reflected signal.
  • the cost and power consumption of reflection communication are several orders of magnitude lower than that of traditional communication equipment.
  • FIG. 1 A schematic diagram of a typical reflection communication network is shown in Figure 1.
  • the reflection communication system can be composed of three nodes: exciter, reflector, and receiver. Its communication process can be simply described as: the first step: the exciter sends a wireless signal h 2 *s; the second step: the reflector receives the wireless signal from the exciter and reflects the signal; during reflection, the reflector will reflect itself The signal is carried on the reflected signal h 3 *(mh 2 *s); the third step: the receiver receives the signal sent by the reflector and demodulates the data carried on the reflected signal.
  • the above-mentioned exciter and receiver can also be integrated on the same device. For example, a traditional RFID reader/writer has the functions of exciter and receiver at the same time.
  • exciter includes: interrogator, reader, user equipment (UE); other possible names of reflector include: backscatter device, passive device ), semi-passive device, ambient signal device, or tag, etc. Reflective communication can also be called: passive communication, passive communication, or ambient communication, etc.
  • the terminal device and the network device are respectively used as the exciter and receiver in FIG. 1 to realize the communication between the transmitting device and the terminal or network device.
  • the reflection devices may need to receive excitation signals, data signals, charging signals, etc. from terminal devices or network devices.
  • the data sent by the interrogator to the tag generally adopts amplitude shift keying (ASK) or phase shift keying (PSK) modulation.
  • the shaped pulses carrying modulation symbols are generally square waves or similar to square waves.
  • Figure 2 shows the schematic diagram of the data signal sent by the interrogator to the tag in the RFID.
  • the interrogator sends two kinds of data to the tag: data 0 (data-0) and data 1 (data-1).
  • the data is modulated by ASK, but the two types of data have different pulse lengths (for example, in Figure 2, the pulse length of data-0 is 1 time unit (Tari), and the pulse length of data-1 is 1.5Tari ⁇ 2.0Tari) ,
  • the tag distinguishes data-0 or data-1 by the pulse length.
  • this signal is called an ASK modulated signal based on pulse-interval encoding (PIE).
  • PIE pulse-interval encoding
  • the existing interrogator-to-tag signal format is compatible with the waveforms commonly used in cellular network communications (for example, orthogonal frequency division multiplexing (OFDM) and discrete Fourier transform extended orthogonal frequency division multiplexing). (DFT spread OFDM, DFT-s-OFDM)) has different forms.
  • OFDM orthogonal frequency division multiplexing
  • DFT-s-OFDM discrete Fourier transform extended orthogonal frequency division multiplexing
  • the sending device performs backscatter communication and cellular network communication, the cost of the sending device needs to be reduced.
  • the present application provides a signal sending and receiving method and communication device, so that the sending device can be compatible with backscatter communication and cellular network communication without increasing the cost of the sending device.
  • a signal transmission method includes: a transmitting device uses a first modulation method to modulate encoded bits to obtain a first signal; Repeating the sampling point to obtain the second signal; the sending device processes the second signal to generate an orthogonal frequency division multiplexing OFDM symbol; and the sending device sends the OFDM symbol to the reflection device.
  • a transmitting device uses a first modulation method to modulate encoded bits to obtain a first signal; Repeating the sampling point to obtain the second signal; the sending device processes the second signal to generate an orthogonal frequency division multiplexing OFDM symbol; and the sending device sends the OFDM symbol to the reflection device.
  • the sampling points in the first signal include at least one first sampling point and at least one second sampling point
  • the sending device performs repeated operations on the sampling points in the first signal to obtain the first sampling point.
  • the second signal includes: the sending device repeats R0 times for the at least one first sampling point and repeats R1 times for the at least one second sampling point to obtain the second signal, and the second signal includes all The R0 first sampling points and the R1 second sampling points.
  • the method further includes: the transmitting device performs an up-sampling operation on the second signal, wherein the up-sampling factor is the number of sampling points required by the frequency domain transformation and the R0 and R1 The quotient of the sum.
  • the transmitting device performs an up-sampling operation on the second signal, wherein the up-sampling factor is the number of sampling points required by the frequency domain transformation and the R0 and R1 The quotient of the sum.
  • the sending device processes the second signal to generate orthogonal frequency division multiplexing OFDM symbols, including: the sending device performs frequency domain transformation on the second signal to obtain a frequency domain vector Element, the size of the frequency domain transform is the first bandwidth; the sending device expands the frequency domain vector element to obtain the expanded frequency domain vector element; and the sending device shapes the frequency domain spectrum into an FDSS filter The parameter is multiplied by the expanded frequency domain vector element to obtain the OFDM symbol.
  • the obtained signal envelope is closer to the ideal signal envelope.
  • the sending device processes the second signal to generate orthogonal frequency division multiplexing OFDM symbols, including: the sending device performs frequency domain on the second signal after the upsampling operation Transform to obtain a frequency domain vector element, the size of the frequency domain transform is the first bandwidth; and the transmitting device multiplies the frequency domain spectrum shaping FDSS filter parameter by the frequency domain vector element to obtain the OFDM symbol.
  • the obtained signal envelope is closer to the ideal signal envelope.
  • the method further includes: the sending device sends a first instruction to the reflection device, where the first instruction is used to instruct the reflection device to use the first parameter to receive the OFDM symbol;
  • the first parameter includes at least one of the following parameters: the number of bits K carried by the OFDM symbol, the number M of sampling points required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
  • the sending device sends the first parameter to the reflecting device, so that the reflecting device can configure the receiver of the reflecting device according to the first parameter, so as to reliably receive the OFDM symbol sent by the sending device.
  • a signal receiving method includes: a reflection device receives an orthogonal frequency division multiplexing OFDM symbol sent by a sending device, wherein the OFDM symbol is after the sending device processes the second signal Generated, the second signal is obtained by the sending device performing repeated operations on the sampling points in the first signal, and the first signal is obtained by modulating the coded bits by the sending device using the first modulation method ⁇ ; and the reflection device detects the OFDM symbol.
  • the reflection device receives the OFDM symbol sent by the sending device in a process compatible with the signal transmission to the reflection device and the conventional communication device, detects the OFDM symbol, and realizes signal transmission between the reflection device and the sending device.
  • the method further includes: the reflection device receives a first instruction, the first instruction includes a first parameter, wherein the first parameter is used to instruct the reflection device to use the first parameter to receive
  • the OFDM symbol the number of bits K included in the OFDM symbol, the number of sampling points M required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
  • the reflection device uses the above-mentioned first parameter to configure the receiver of the reflection device, so that the receiver can reliably receive the OFDM symbol sent by the sending device.
  • a method for sending a signal includes: a sending device obtains an element set corresponding to the encoded bit according to a mapping relationship between the encoded bit and the element set, as the first signal, wherein
  • the encoded bit includes at least one bit 0 and/or at least one bit 1;
  • the set of elements corresponding to the bit 0 includes: p0 1s and q0 0s; the set of elements corresponding to the bit 1 includes: p1 1 and q1 0;
  • the transmitting device processes the first signal to generate an orthogonal frequency division multiplexing OFDM symbol; and the transmitting device transmits the OFDM symbol to the reflection device.
  • the transmitting device obtains the vector corresponding to the encoded bit according to the mapping relationship between the encoded bit and the element set, as the first signal, the transmitting device processes the first signal, generates and transmits the OFDM symbol, and the reflection device Receive the OFDM symbol with the first parameter and detect the modulated signal corresponding to the OFDM symbol.
  • the transmitting device obtains the vector corresponding to the encoded bit according to the mapping relationship between the encoded bit and the element set, as the first signal
  • the transmitting device processes the first signal, generates and transmits the OFDM symbol
  • the reflection device Receive the OFDM symbol with the first parameter and detect the modulated signal corresponding to the OFDM symbol.
  • p0 and p1 are not equal, q0 and q1 are equal; or p0 and p1 are equal, q0 and q1 are not equal; or p0 and p1 are not equal, q0 and q1 are not equal; or p0 and p1 are not equal, p0
  • the sum of q0 is equal to the sum of p1 and q1; or q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
  • the sending device processes the first signal to generate an OFDM symbol, including: the sending device performs an up-sampling operation on the first signal to obtain a second signal, wherein the up-sampling factor It is the quotient of the number of sampling points required by the frequency domain transformation and the number of sampling points of the first signal.
  • the sending device processes the first signal to generate OFDM symbols, including: the sending device performs frequency domain transformation on the first signal to obtain frequency domain vector elements, and the frequency domain The transformed size is the first bandwidth; the sending device expands the frequency domain vector element to obtain the expanded frequency domain vector element of the first signal; and the sending device shapes the frequency domain spectrum into an FDSS filter The parameter is multiplied by the expanded frequency domain vector element of the first signal to obtain the OFDM symbol.
  • the sending device processes the first signal to generate OFDM symbols, including: the sending device performs frequency domain transformation on the second signal to obtain frequency domain vector elements, and the frequency domain The transformed size is the first bandwidth; and the transmitting device multiplies the frequency domain spectrum shaping FDSS filter parameter with the frequency domain vector element of the second signal to obtain the OFDM symbol.
  • a signal receiving method includes: a reflection device receives an orthogonal frequency division multiplexing OFDM symbol sent by a sending device, wherein the OFDM symbol is a signal performed by the sending device on the first signal.
  • the first signal is the element set corresponding to the encoded bit obtained according to the mapping relationship between the encoded bit and the element set, wherein the encoded bit includes at least one bit 0, And/or at least one bit 1; the set of elements corresponding to bit 0 includes: p0 1s and q0 0s; the set of elements corresponding to bit 1 includes p1 1s and q1 0s; and the reflection The device detects the OFDM symbol.
  • p0 and p1 are not equal, q0 and q1 are equal; or p0 and p1 are equal, q0 and q1 are not equal; or p0 and p1 are not equal, q0 and q1 are not equal; or p0 and p1 are not equal, p0 and The sum of q0 is equal to the sum of p1 and q1; or q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
  • a communication device which can implement the signal sending method in the first aspect, the third aspect, or any one of the first and third aspects.
  • the communication device may be a chip (such as a communication chip, etc.) or a sending device.
  • the above method can be implemented by software, hardware, or by hardware executing corresponding software.
  • the structure of the communication device includes a processor and a memory; the processor is configured to support the device to perform corresponding functions in the signal sending method.
  • the memory is used for coupling with the processor, and it stores the necessary programs (instructions) and/or data of the device.
  • the communication device may further include a communication interface for supporting communication between the device and other network elements.
  • the communication device may include a unit or module that performs corresponding actions in the foregoing method.
  • the communication device includes: a processing unit, configured to use a first modulation method to modulate the encoded bits to obtain a first signal; the processing unit is also configured to repeat sampling points in the first signal Operation to obtain a second signal; the processing unit is further configured to process the second signal to generate an orthogonal frequency division multiplexing OFDM symbol; and the transceiver unit is configured to send the OFDM symbol to the reflection device.
  • a processing unit configured to use a first modulation method to modulate the encoded bits to obtain a first signal
  • the processing unit is also configured to repeat sampling points in the first signal Operation to obtain a second signal
  • the processing unit is further configured to process the second signal to generate an orthogonal frequency division multiplexing OFDM symbol
  • the transceiver unit is configured to send the OFDM symbol to the reflection device.
  • the sampling points in the first signal include at least one first sampling point and at least one second sampling point; the processing unit is configured to repeat R0 times on the at least one first sampling point, and Repeat R1 times for the at least one second sampling point to obtain the second signal, and the second signal includes the R0 first sampling points and the R1 second sampling points.
  • the processing unit is configured to perform an up-sampling operation on the second signal, where the up-sampling factor is the quotient of the number of sampling points required for frequency domain transformation and the sum of R0 and R1.
  • the processing unit is configured to perform frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; the processing unit is also configured to The frequency domain vector element is expanded to obtain an expanded frequency domain vector element; and the processing unit is further configured to multiply the frequency domain spectrum shaping FDSS filter parameter by the expanded frequency domain vector element to obtain the Mentioned OFDM symbol.
  • the processing unit is configured to perform frequency domain transformation on the second signal after the upsampling operation to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and the processing The unit is further configured to multiply the frequency domain spectrum shaping FDSS filter parameter by the expanded frequency domain vector element to obtain the OFDM symbol.
  • the transceiving unit is further configured to send a first instruction to the reflecting device, where the first instruction is used to instruct the reflecting device to use the first parameter to receive the OFDM symbol; wherein, the The first parameter includes at least one of the following parameters: the number of bits K carried by the OFDM symbol, the number M of sampling points required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
  • the communication device may include a unit or module that performs corresponding actions in the foregoing method.
  • the communication device includes: a processing unit, configured to obtain a set of elements corresponding to the encoded bits according to the mapping relationship between the encoded bits and the element sets, as the first signal, wherein the encoded bits It includes at least one bit 0 and/or at least one bit 1; the set of elements corresponding to bit 0 includes: p0 1s and q0 0s; the set of elements corresponding to bit 1 includes p1 1s and q1 0; the processing unit is further configured to process the first signal to generate an orthogonal frequency division multiplexing OFDM symbol; and the transceiver unit is configured to send the OFDM symbol to the reflection device.
  • a processing unit configured to obtain a set of elements corresponding to the encoded bits according to the mapping relationship between the encoded bits and the element sets, as the first signal, wherein the encoded bits It includes at least one bit 0 and/or at least one bit 1; the set of elements corresponding to bit 0 includes: p0 1s and q0 0s; the set of elements
  • p0 and p1 are not equal, q0 and q1 are equal; or p0 and p1 are equal, and q0 and q1 are not equal; or p0 and p1 are not equal, and q0 and q1 are not equal; or p0 and p1 are not equal, p0 and q0
  • the sum is equal to the sum of p1 and q1; or q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
  • the processing unit is configured to perform an up-sampling operation on the first signal to obtain a second signal, wherein the up-sampling factor is the number of sampling points required by the frequency domain transform and the first signal The quotient of the number of sampling points of a signal.
  • the processing unit is configured to perform frequency domain transformation on the first signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and the processing unit is further configured to The frequency domain vector element is expanded to obtain the expanded frequency domain vector element of the first signal; and the processing unit is further configured to combine the frequency domain spectrum shaping FDSS filter parameters with the expanded frequency domain of the first signal The frequency domain vector elements of are multiplied to obtain the OFDM symbol.
  • the processing unit is configured to perform frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and the processing unit is further configured to transform The frequency domain spectrum shaping FDSS filter parameter is multiplied by the expanded frequency domain vector element of the second signal to obtain the OFDM symbol.
  • a processor and a transceiver device are included, the processor is coupled with the transceiver device, and the processor is used to execute a computer program or instruction to control the transceiver device to receive and receive information. Send; when the processor executes the computer program or instruction, the processor is also used to implement the above method.
  • the transceiving device may be a transceiver, a transceiving circuit or an input/output interface.
  • the communication device is a chip
  • the transceiving device is a transceiving circuit or an input/output interface.
  • the processor may perform the operations of the foregoing processing unit; the transceiving device may perform the operations of the foregoing transceiving unit.
  • the structure of the communication device includes a processor; the processor is configured to support the device to perform corresponding functions in the foregoing signal sending method.
  • the structure of the communication device includes a processor, and the processor is configured to couple with the memory, read instructions in the memory, and implement the foregoing method according to the instructions.
  • the structure of the communication device includes a transceiver for implementing the foregoing signal sending method.
  • the transceiver unit may be an input/output unit, such as an input/output circuit or a communication interface.
  • the transceiver unit may be a transmitter/receiver or a transmitter/receiver.
  • a communication device which can implement the communication method in any possible implementation manner of the second aspect, the fourth aspect, or the second aspect and the fourth aspect.
  • the communication device may be a chip (such as a communication chip, etc.) or a receiving device, and the foregoing method may be implemented by software, hardware, or by hardware executing corresponding software.
  • the structure of the communication device includes a processor and a memory; the processor is configured to support the device to perform the corresponding functions in the foregoing communication method.
  • the memory is used to couple with the processor, and it stores the necessary programs (instructions) and data of the device.
  • the communication device may further include a communication interface for supporting communication between the device and other network elements.
  • the communication device may include unit modules that perform corresponding actions in the foregoing method.
  • the communication device includes: a transceiving unit configured to receive orthogonal frequency division multiplexing OFDM symbols sent by a sending device, wherein the OFDM symbols are generated after the sending device processes the second signal, and the first The second signal is obtained by the sending device performing repeated operations on the sampling points in the first signal, and the first signal is obtained by modulating the encoded bits by the sending device using the first modulation method; and a processing unit, Used to detect the OFDM symbol.
  • the transceiver unit is configured to receive a first indication, where the first indication is used to instruct the reflection device to use a first parameter to receive the OFDM symbol, where the first parameter includes at least one of the following parameters : The number of bits included in the OFDM symbol K, the number of sampling points M required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, and the type of cyclic prefix.
  • the communication device may include a unit module that performs the corresponding actions in the foregoing method.
  • the communication device includes: a transceiving unit, configured to receive an orthogonal frequency division multiplexing OFDM symbol sent by a sending device, wherein the OFDM symbol is generated after the sending device processes the first signal, and the first signal Is the element set corresponding to the encoded bit obtained according to the mapping relationship between the encoded bit and the element set, wherein the encoded bit includes at least one bit 0 and/or at least one bit 1;
  • the set of elements corresponding to bit 0 includes: p0 ones and q0 zeros; the set of elements corresponding to bit 1 includes p1 ones and q1 zeros; and a processing unit for detecting the OFDM symbol.
  • p0 and p1 are not equal, q0 and q1 are equal; or p0 and p1 are equal, and q0 and q1 are not equal; or p0 and p1 are not equal, and q0 and q1 are not equal; or p0 and p1 are not equal, p0 and q0
  • the sum is equal to the sum of p1 and q1; or q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
  • a processor and a transceiver device are included, the processor is coupled with the transceiver device, and the processor is used to execute a computer program or instruction to control the transceiver device to receive and receive information. Send; When the processor executes the computer program or instruction, the processor is also used to implement the above method.
  • the transceiving device may be a transceiver, a transceiving circuit or an input/output interface.
  • the communication device is a chip
  • the transceiving device is a transceiving circuit or an input/output interface.
  • the processor can execute the operation of the aforementioned processing unit; the transceiving device can execute the operation of the aforementioned transceiving unit.
  • the structure of the communication device includes a processor; the processor is configured to support the device to perform corresponding functions in the foregoing communication method.
  • the structure of the communication device includes a processor, and the processor is configured to couple with the memory, read instructions in the memory, and implement the foregoing method according to the instructions.
  • the structure of the communication device includes a transceiver for implementing the foregoing communication method.
  • the transceiver unit may be an input/output unit, such as an input/output circuit or a communication interface.
  • the transceiving unit may be a transmitter/receiver (also called a transmitter/receiver).
  • a computer-readable storage medium stores a computer program or instruction, and when the computer program or instruction is executed, the method described in each of the foregoing aspects is implemented.
  • a computer program product containing instructions is provided.
  • the instructions When the instructions are executed on a computer, the computer executes the methods described in the foregoing aspects.
  • a communication system including the communication device in the fifth aspect and the sixth aspect.
  • Figure 1 is a schematic diagram of a typical reflective communication network
  • Figure 2 is a schematic diagram of the data signal sent by the interrogator to the tag in the RFID
  • FIG. 3 is a schematic flowchart of a signal sending and receiving method according to an embodiment of the application
  • FIG. 4 is a schematic flowchart of another signal sending and receiving method according to an embodiment of the application.
  • FIG. 5 is a schematic diagram of the transmitting structure of a transmitting device provided by this embodiment.
  • FIG. 6 is a schematic diagram of a partial transmission structure of the transmitting device shown in FIG. 5;
  • Figure 7 is a schematic diagram of FDSS
  • FIG. 8 is a schematic diagram showing the comparison of the transmitter structure of the transmitting device sending signals to the conventional communication device and sending signals to the reflecting device;
  • Figure 9a is a schematic diagram of a signal sent by a sending device under ideal conditions
  • Figure 9b is a schematic diagram of a signal sent by a sending device using the solution of the present application.
  • FIG. 10 is a schematic flowchart of yet another signal sending and receiving method provided by an embodiment of this application.
  • FIG. 11 is a schematic diagram of the transmission structure of another transmission device provided by this embodiment.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of yet another communication device provided by an embodiment of this application.
  • FIG. 14 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 15 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • the exciter is a terminal device and the receiver is a network device; or the exciter is a network device and the receiver is a terminal device; or Both the exciter and receiver are terminal devices; or both the exciter and receiver are network devices.
  • the network device may be a device that can communicate with terminal devices.
  • the network device can be any device with wireless transceiver function, including but not limited to: base station (nodeB), evolved base station (eNodeB), base station in the fifth generation (5G) communication system, future communication system
  • the network device may also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario.
  • the network device may also be a small station, a transmission reference point (TRP), etc.
  • TRP transmission reference point
  • a terminal device is a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on the water, such as a ship, etc.; it can also be deployed in the air, such as aircraft, Balloons and satellites are first class.
  • Terminal devices can be mobile phones, tablets, computers with wireless transceiver functions, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial control (industrial control) Wireless terminals in ), wireless terminals in self-driving (self-driving), wireless terminals in remote medical, wireless terminals in smart grid, and wireless terminals in transportation safety (transportation safety) Terminal, wireless terminal in smart city, wireless terminal in smart home, etc.
  • Terminal equipment can sometimes be referred to as user equipment (UE), access terminal equipment, UE unit, mobile station, mobile station, remote station, remote terminal equipment, mobile equipment, terminal, wireless communication equipment, UE Agent or UE device, etc.
  • UE user equipment
  • access terminal equipment UE unit
  • mobile station mobile station
  • remote station remote terminal equipment
  • mobile equipment terminal
  • wireless communication equipment UE Agent or UE device, etc.
  • the embodiments of the present application provide a signal sending and receiving method and a communication device.
  • a sending device sends a signal to a sending device and a conventional communication device
  • a similar processing procedure can be used, and the sending device reuses existing sending modules and procedures as much as possible Therefore, there is no need to make major changes to the structure of the sending device, and the cost of the sending device is reduced.
  • Fig. 3 is a schematic flow chart of a signal sending and receiving method provided by an embodiment of this application.
  • the method may include the following steps:
  • the sending device modulates the encoded bits by using the first modulation mode to obtain a first signal.
  • the modulation method adopted by the sending device when sending signals to the reflecting device is different from the modulation method adopted by the sending device when sending signals to conventional communication devices.
  • the generation of the signal sent to the reflection device in an OFDM symbol or a DFT-S-OFDM symbol.
  • the transmitting device needs to transmit K coded bits.
  • the sending device modulates the K encoded bits by using the first modulation method to obtain the first signal.
  • the first modulation mode may be ASK, PSK (for example, BPSK), and so on.
  • the K encoded bits are converted into modulation symbols of K1 sampling points.
  • K1 K.
  • K1 may not be equal to K.
  • the ASK symbol (first signal) generally has the value ⁇ a, 0 ⁇ .
  • Value ⁇ a,-a ⁇ , similarly, take a 1 as an example.
  • the sending device performs repeated operations on the sampling points in the first signal to obtain a second signal.
  • the sending device processes the second signal to generate an orthogonal frequency division multiplexing OFDM symbol.
  • the sending device After obtaining the above-mentioned second signal, the sending device performs one or more of the following processing operations on the second signal: first, the sending device performs frequency domain transform (for example, DFT or discrete cosine transform, DCT) on the second signal ), and then, the transmitting device performs (time-frequency) resource mapping on the vector or symbol set after DFT; after the resource mapping, the transmitting device performs IFFT operation, then adds CP, and sends the signal to subsequent modules such as intermediate radio frequency.
  • frequency domain transform for example, DFT or discrete cosine transform, DCT
  • DCT discrete cosine transform
  • the sending device sends the OFDM symbol to the reflecting device.
  • the reflection device receives the OFDM symbol sent by the sending device.
  • the sending device after generating the OFDM symbol sent to the reflecting device, the sending device sends the generated OFDM symbol to the reflecting device.
  • the reflection device receives the OFDM symbol sent by the above-mentioned sending device, that is, the OFDM symbol is generated by the sending device after processing the second signal, and the second signal is obtained by repeating the sampling point in the first signal by the sending device.
  • the first signal is obtained by modulating the encoded bits by the sending device using the first modulation method.
  • the reflection device detects a modulation signal corresponding to the OFDM symbol.
  • the design of the reflection device is not limited, but considering the cost, the reflection device generally does not have fast fourier transformation (FFT) and inverse discrete fourier transformation, IDFT) and other complex signal processing modules. Therefore, although the transmitting device transmits based on the OFDM/DFTs waveform, the reflection device generally detects the ASK or PSK modulated signal corresponding to the OFDM symbol sent by the transmitting device through methods such as energy detection, envelope detection, and phase inversion detection. No adjustments are made to the internal structure of the reflection device.
  • FFT fast fourier transformation
  • IDFT inverse discrete fourier transformation
  • the reflection device detects the signal energy for a period of time. If the detected energy is greater than a certain threshold, the detected signal is judged to be a high level; otherwise, the detected signal is judged to be a low level .
  • the sending device when the sending device sends a signal to the reflection device, compared to the sending device sending a signal to a conventional communication device, the processing flow is similar.
  • the encoded bits must be modulated, frequency domain transformed, resource mapping, IFFT operation, and CP added. , Intermediate radio frequency processing; the difference is that the modulation method is different, when the transmitting device generates the symbol sent to the reflecting device, it also needs to perform repeated operations on the modulated signal. Therefore, the sending device reuses the existing modules and procedures for sending signals to conventional communication devices as much as possible, without major structural and procedure changes.
  • a sending device when a sending device sends a signal to a sending device and a conventional communication device, a similar processing procedure can be adopted, and the sending device reuses the existing sending modules and procedures as much as possible, thereby There is no need to make major changes to the structure of the sending device, which reduces the cost of the sending device.
  • FIG. 4 is a schematic flowchart of another signal sending and receiving method provided by an embodiment of the application. Illustratively, the method may include the following steps:
  • the sending device sends a first instruction to the reflection device, where the first instruction is used to instruct the reflection device to use the first parameter to receive the OFDM symbol.
  • the reflection device can obtain the first parameter for configuring the receiver of the reflection device.
  • the first parameter includes at least one of the following parameters: the number of bits K carried by the OFDM symbol, the number M of sampling points required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the CP type.
  • the terminal device may receive the first instruction sent by the network device, and then the terminal device forwards the first instruction to the reflection device; it may also be directly sent by the network device to the reflection device.
  • the sending device is a network device
  • the network device may send the first instruction to the reflection device.
  • the sending device modulates the encoded bits by using the first modulation mode to obtain a first signal.
  • FIG. 5 a schematic diagram of the transmitting structure of a transmitting device provided in this embodiment is shown.
  • the transmitting device modulates K encoded bits to obtain the first signal.
  • the sending device repeats R0 times for at least one first sampling point and repeats R1 times for at least one second sampling point to obtain a second signal.
  • the preprocessing operation includes repeated operations, and further, may also include up-sampling operations.
  • step S203 For the specific implementation of the repeated operation in step S203, refer to step S102 of the embodiment shown in FIG. 3.
  • the sending device performs an upsampling operation on the second signal.
  • the preprocessing operation shown in FIG. 5 may include repetition and up-sampling operations.
  • the upsampling operation is optional.
  • the up-sampling operation is performed on the samples with the length of M1 after repetition, so that the number of samples becomes M.
  • M is the number of points required for frequency domain transformation.
  • the upsampling factor is the quotient of the number of sampling points required by the frequency domain transformation and the sum of R0 and R1, that is, the upsampling factor is M/M1 (assuming M/M1 is an integer). If M/M1 is not an integer, it will be rounded up or down. In this case, the length of the sequence after uptake may not be equal to M, and the length should be M by filling or truncating the head or tail.
  • the time domain (cyclic) filtering operation can also be performed on the M samples. It should be noted that the length of the time-domain filter is less than or equal to M, but this application does not limit the parameters of the filter.
  • the sending device can also perform a cyclic shift operation on the time-domain signal. For example, if the up-sampled sequence is [x1,0, x2,, 0, x3,, 0, x4, 0], then the cyclic shift The value obtained by -1 is [0, x2, 0, x3, 0, x4, 0, x1]. Among them, the cyclic shift can be positive or negative.
  • a time-domain filtering operation may also be included.
  • the time-domain filter may be a single-tap filter, and the single-tap filter may implement a time-domain cyclic shift of M samples.
  • the time-domain filter can also be a multi-tap filter to achieve sample point shaping, or shaping and shifting functions. This application does not limit the parameters of the filter.
  • the sending device performs frequency domain transformation on the second signal to obtain frequency domain vector elements.
  • This step is to perform frequency domain transformation on the second signal obtained after preprocessing above to obtain frequency domain vector elements.
  • the frequency domain transform includes DFT or DCT.
  • the transmitting device performs DFT operation on the preprocessed second signal.
  • the size of the frequency domain transformation is M sampling points.
  • the above frequency domain transformation can be performed; if the OFDM waveform is transmitted, the frequency domain transformation may not be performed, that is, this step is optional.
  • the sending device expands the frequency domain vector element to obtain an expanded frequency domain vector element.
  • the sending device may also perform a frequency domain cyclic extension operation, that is, expand the frequency domain vector element obtained after DFT to obtain the expanded frequency domain vector element.
  • a frequency domain cyclic extension operation that is, expand the frequency domain vector element obtained after DFT to obtain the expanded frequency domain vector element.
  • the M sampling points obtained after the above DFT are expanded to M 2 sampling points.
  • S206 may not be performed, that is, this step is optional.
  • the sending device multiplies the frequency domain spectrum shaping FDSS filter parameter by the expanded frequency domain vector element to obtain an OFDM symbol.
  • step S206 if S206 is not executed, that is, after DFT, M samples are output, and these M samples are combined with the weights of the frequency domain filter w(0) ⁇ w(M -1) Multiply to obtain weighted M frequency domain samples.
  • the frequency domain cyclic extension operation is also performed on the M sampling points (step S206), then in this step, the M2 samples are filtered with the frequency domain.
  • the weights of the filter w(0) ⁇ w(M 2 -1) are multiplied to obtain the weighted M2 frequency domain samples.
  • there are multiple choices for the weight of the frequency domain filter such as RC filter, RRC filter, Kaiser filter, etc.
  • w(k) is obtained by sampling the frequency domain response of the above filter.
  • M samples will be added to N samples by inserting zeros during resource mapping, and then perform IFFT transformation.
  • the sending device sends the OFDM symbol to the reflecting device.
  • the reflection device uses the first parameter to receive the OFDM symbol sent by the sending device.
  • step S201 the reflection device receives the first instruction.
  • the reflection device can use the first parameter included in the first instruction to configure the receiver of the reflection device, so as to reliably receive the signal sent by the sending device. OFDM symbol.
  • the reflection device detects the OFDM symbol.
  • the design of the reflection device is not limited, but considering the cost, the reflection device generally does not have complex signal processing modules such as FFT and IDFT. Therefore, although the transmitting device transmits based on the OFDM/DFTs waveform, the reflection device generally detects the OFDM symbols sent by the transmitting device through methods such as energy detection, envelope detection, and phase inversion detection, without adjusting the internal structure of the reflection device .
  • the reflection device detects the signal energy for a period of time. If the detected energy is greater than a certain threshold, the detected signal is judged to be a high level; otherwise, the detected signal is judged to be a low level .
  • the sending device sends a signal to a conventional communication device and a transmitter structure comparison diagram for sending a signal to the reflection device.
  • the sending device sends a signal to the reflection device, compared to the sending device sending a signal to the conventional communication device
  • the signal and processing procedures are similar, and the encoded bits must be modulated, frequency domain transformed, resource mapping, IFFT operation, CP added, and RF processing performed; the difference is that the modulation method is different, and the sending device is generating and sending to the reflecting device
  • the modulated signal must be preprocessed, and after DFT, the signal may also be processed in the frequency domain. Therefore, the sending device reuses the existing modules and procedures for sending signals to conventional communication devices as much as possible, without major structural and procedure changes.
  • the transmitting device needs to transmit 5 bits.
  • the sending device needs to send ASK modulation symbols as shown in Figure 9a.
  • the ASK mapping uses Manchester coding, that is, bit 0 is mapped to ASK 0 and 1, and bit 1 is mapped to 1 and 0.
  • the transmitted signal envelope as shown in FIG. 9b can be obtained.
  • the signal envelope obtained by the solution of the present application is closer to the ideal signal envelope. And since the solution of this application is processed under the framework of the DFTs transmitting device, the generated signal will not cause additional out-of-band interference to other receivers.
  • a sending device when a sending device sends a signal to a sending device and a conventional communication device, a similar processing procedure can be adopted, and the sending device reuses the existing sending modules and procedures as much as possible, thereby There is no need to make major changes to the structure of the sending device, which reduces the cost of the sending device.
  • FIG. 10 is a schematic flowchart of another signal sending and receiving method provided by an embodiment of this application. Illustratively, the method may include the following steps:
  • the sending device obtains the element set corresponding to the encoded bit according to the mapping relationship between the encoded bit and the element set, as a first signal.
  • FIG. 11 Another partial schematic diagram of the transmission structure of the transmitting device is shown.
  • the above-mentioned modulation and preprocessing operations can be performed jointly, that is, the two modules of modulation and repetition can be combined into A new modulation module is called X modulation module.
  • the signal output by the X modulation module is M1 sampling points after modulation, additional coding, and repeated operations.
  • the additional coding and repeated operations can exist at the same time, or there can be only additional coding or repeated operations.
  • the X modulation module obtains the element set corresponding to the coded bit as the first signal according to the mapping relationship between the coded bit and the element set.
  • the output waveforms of bit 0 and bit 1 can have different pulse lengths.
  • the element set corresponding to bit 0 includes: p0 1s and q0 0s, namely Among them, p0 and q0 respectively represent the number of 1 and 0 when bit 0 is sent;
  • the set of elements corresponding to bit 1 includes: p1 1 and q1 0, namely Among them, p1 and q1 respectively represent the number of 1 and 0 when bit 1 is sent.
  • the encoded bits include at least one bit 0 and/or at least one bit 1.
  • the sending device may obtain the element set corresponding to the encoded bit as the first signal according to the mapping relationship between the encoded bit and the element set. That is, respectively map one or more bits 0 in the encoded bits to the element set corresponding to the above bit 0; respectively map one or more bits 1 in the encoded bits to the element set corresponding to the above bit 1 ; Finally, the set of elements corresponding to the encoded bits is obtained.
  • the encoded bit stream is [0, 1].
  • the modulated sequence can be obtained as [0,1], and then repeat 4 times to obtain [00001111].
  • mapping relationship between the encoded bits and the element set is:
  • p0 and p1 are not equal, and q0 and q1 are equal;
  • p0 and p1 are equal, and q0 and q1 are not equal;
  • p0 and p1 are not equal, and q0 and q1 are not equal;
  • p0 and p1 are not equal, and p0+q0 and p1+q1 are equal;
  • q0 and q1 are not equal, and p0+q0 and p1+q1 are equal.
  • the sending device processes the first signal to generate an OFDM symbol.
  • S302 includes: the transmitting device performs an up-sampling operation on the first signal to obtain a second signal, where the up-sampling factor is the number of sampling points required by the frequency domain transform and the first signal. The quotient of the number of sampling points of the signal.
  • S302 further includes: the sending device performs frequency domain transformation on the first signal to obtain a frequency domain vector element, and the size of the frequency domain transformation is a first bandwidth; Element is expanded to obtain the expanded frequency domain vector element of the first signal; and the transmitting device multiplies the frequency domain spectrum shaping FDSS filter parameter by the expanded frequency domain vector element of the first signal, Obtain the OFDM symbol.
  • S302 further includes: the sending device performs frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and the sending device shapes the frequency domain spectrum into FDSS The filter parameter is multiplied by the frequency domain vector element of the second signal to obtain the OFDM symbol.
  • the sending device sends the OFDM symbol to a reflection device.
  • the reflection device receives the OFDM symbol sent by the sending device.
  • the reflection device may use the first parameter to receive the foregoing OFDM symbol sent by the sending device, where the first parameter includes at least one of the following parameters: the number of bits K included in the OFDM symbol, the number of sampling points required by the frequency domain transformation Number M, OFDM symbol duration, subcarrier spacing, or CP type.
  • step S104 in the embodiment shown in FIG. 3 or step S208 in the embodiment shown in FIG. 4.
  • the reflection device detects the OFDM symbol.
  • step S105 in the embodiment shown in FIG. 3 or step S209 in the embodiment shown in FIG. 4.
  • the sending device obtains a vector corresponding to the encoded bit according to the mapping relationship between the encoded bit and the element set, as the first signal, and the sending device responds to the first signal Process, generate and send the OFDM symbol, the reflection device receives the OFDM symbol with the first parameter, and detects the modulated signal corresponding to the OFDM symbol.
  • the scenario where reflection communication and cellular communication merge there is no need to make major changes to the structure of the transmission device. It can be compatible to send signals to reflection equipment and conventional communication equipment, reducing the cost of the sending equipment.
  • an embodiment of the present application further provides a communication device 1000, which can be used in the signal sending methods shown in FIG. 3 and FIG.
  • the communication device 1000 includes; a processor 11 and a transceiver 12; exemplarily:
  • the processor 11 is configured to use the first modulation mode to modulate the encoded bits to obtain the first signal;
  • the processor 11 is also configured to perform repeated operations on sampling points in the first signal to obtain a second signal;
  • the processor 11 is further configured to process the second signal to generate orthogonal frequency division multiplexing OFDM symbols;
  • the transceiver 12 is configured to send the OFDM symbol to the reflection device.
  • the sampling points in the first signal include at least one first sampling point and at least one second sampling point; the processor 11 is configured to repeat R0 times on the at least one first sampling point , And repeating R1 times for the at least one second sampling point to obtain the second signal, where the second signal includes the R0 first sampling points and the R1 second sampling points.
  • the processor 11 is configured to perform an up-sampling operation on the second signal, where the up-sampling factor is the number of sampling points required for frequency domain transformation and the sum of R0 and R1 Quotient.
  • the processor 11 is configured to perform frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; the processor 11 further Is used to expand the frequency domain vector element to obtain an expanded frequency domain vector element; and the processor 11 is also used to shape the frequency domain spectrum FDSS filter parameter with the expanded frequency domain vector element Multiply to obtain the OFDM symbol.
  • the processor 11 is configured to perform frequency domain transformation on the second signal after the upsampling operation to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and The processor 11 is further configured to multiply the frequency domain spectrum shaping FDSS filter parameter by the frequency domain vector element to obtain the OFDM symbol.
  • the transceiver 12 is further configured to send a first instruction to the reflection device, where the first instruction is used to instruct the reflection device to use the first parameter to receive the OFDM symbol; wherein
  • the first parameter includes at least one of the following parameters: the number of bits K carried by the OFDM symbol, the number M of sampling points required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
  • transceiver can be an integrated device with a transceiver function, or it can be composed of an independent receiver with a receiving function and a transmitter with a sending function, logically called a "transceiver" .
  • the communication device may also include a processing unit and a transceiving unit.
  • the processing unit is used to perform operations from S101 to S103 in the embodiment shown in FIG. 3; and the transceiving unit is used to perform the implementation shown in FIG. In the example, the operation of the sending device in S104. Further, the processing unit is used to perform operations from S202 to S207 in the embodiment shown in FIG. 4; and the transceiver unit is used to perform operations of the sending device in S201 and S208 in the embodiment shown in FIG. 4.
  • a communication device in a scenario where reflection communication and cellular communication are fused, there is no need to make major changes to the structure of the communication device, and it can be compatible with sending signals to reflection devices and conventional communication devices, reducing communication The cost of the device.
  • an embodiment of the present application further provides a communication device 2000, which can be applied to the signal sending method described in FIG. 12.
  • the communication device 2000 includes a processor 21 and a transceiver 22; exemplary:
  • the processor 21 is configured to obtain the element set corresponding to the coded bit as a first signal according to the mapping relationship between the coded bit and the element set, where the coded bit includes at least one bit 0, and / Or at least one bit 1; the set of elements corresponding to bit 0 includes: p0 1s and q0 0s; the set of elements corresponding to bit 1 includes p1 1s and q1 0s; the processor 21 , Is also used to process the first signal to generate Orthogonal Frequency Division Multiplexing OFDM symbols; and the transceiver 22 is used to send the OFDM symbols to the reflection device.
  • p0 and p1 are not equal, q0 and q1 are equal; or p0 and p1 are equal, q0 and q1 are not equal; or p0 and p1 are not equal, q0 and q1 are not equal; or p0 and p1 are not equal, p0 and The sum of q0 is equal to the sum of p1 and q1; or q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
  • the processor 21 is configured to perform an up-sampling operation on the first signal to obtain a second signal, wherein the up-sampling factor is the number of sampling points required by the frequency domain transformation and The quotient of the number of sampling points of the first signal.
  • the processor 21 is configured to perform frequency domain transformation on the first signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; the processor 21 further The frequency domain vector element is used to expand the frequency domain vector element to obtain the expanded frequency domain vector element of the first signal; and the processor 21 is further configured to compare the frequency domain spectrum shaping FDSS filter parameter with the first signal. Multiplying the frequency domain vector elements of a signal to obtain the OFDM symbol.
  • the processor 21 is configured to perform frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and the processor 21, It is also used to multiply the frequency domain spectrum shaping FDSS filter parameter with the frequency domain vector element of the second signal to obtain the OFDM symbol.
  • processor 21 and transceiver 22 can be obtained by referring to the relevant description of the sending device in the signal sending method described in FIG. 10, which is not repeated here.
  • transceiver can be an integrated device with a transceiver function, or it can be composed of an independent receiver with a receiving function and a transmitter with a sending function, logically called a "transceiver" .
  • the communication device may also include a processing unit and a transceiving unit, where the processing unit is used to perform S301 and S302 in the embodiment shown in FIG. 10; and the transceiving unit is used to perform S303 in the embodiment shown in FIG. Operation of the reflective equipment.
  • a processing unit and a transceiving unit where the processing unit is used to perform S301 and S302 in the embodiment shown in FIG. 10; and the transceiving unit is used to perform S303 in the embodiment shown in FIG. Operation of the reflective equipment.
  • the communication device obtains a vector corresponding to the encoded bit as a first signal according to the mapping relationship between the encoded bit and the element set, and processes the first signal to generate And send the OFDM symbol, the reflection device receives the OFDM symbol with the first parameter, and detects the modulated signal corresponding to the OFDM symbol.
  • the communication device obtains a vector corresponding to the encoded bit as a first signal according to the mapping relationship between the encoded bit and the element set, and processes the first signal to generate And send the OFDM symbol
  • the reflection device receives the OFDM symbol with the first parameter, and detects the modulated signal corresponding to the OFDM symbol.
  • an embodiment of the present application also provides a communication device 3000, which can be applied to the signal receiving method described in FIG. 3 and FIG. 4 in.
  • the communication device 3000 includes: a transceiver 31 and a processor 32; exemplary:
  • the transceiver 31 is configured to receive an orthogonal frequency division multiplexing OFDM symbol sent by a sending device, where the OFDM symbol is generated after the sending device processes a second signal, and the second signal is the sending device.
  • the device is obtained by performing repeated operations on the sampling points in the first signal, where the first signal is obtained by modulating the encoded bits by the transmitting device using the first modulation method; and the processor 32 is configured to detect the OFDM symbol.
  • the transceiver 31 is configured to receive a first indication, and the first indication is used to instruct the reflection device to use a first parameter to receive the OFDM symbol, where the first parameter includes at least the following One parameter: the number of bits K included in the OFDM symbol, the number of sampling points M required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
  • transceiver can be an integrated device with a transceiver function, or it can be composed of an independent receiver with a receiving function and a transmitter with a sending function, logically called a "transceiver" .
  • the communication device may also include a transceiving unit and a processing unit, where the transceiving unit is used to perform the operation of the reflection device in step S104 of the embodiment shown in FIG. 3; and the processing unit is used to perform the operation shown in FIG. 3 The operation of S105 in this embodiment is shown. Further, the transceiving unit is used to perform the operations of the reflection device in steps S201 and S208 of the embodiment shown in FIG. 4; and the processing unit is also used to perform the operations of S209 in the embodiment shown in FIG.
  • the communication device receives the OFDM symbols sent by the sending device in a process compatible with sending signals to the reflection device and the conventional communication device, detects the OFDM symbols, and realizes the communication device and the sending device. Signal transmission between.
  • an embodiment of the present application further provides a communication device 4000, which can be applied to the signal receiving method described in FIG. 10.
  • the communication device 4000 includes: a transceiver 41 and a processor 42; exemplary:
  • the transceiver 41 is configured to receive an orthogonal frequency division multiplexing OFDM symbol sent by a sending device, where the OFDM symbol is generated by the sending device after processing a first signal, and the first signal is encoded according to the The mapping relationship between the bit and the element set of the obtained element set corresponding to the coded bit, wherein the coded bit includes at least one bit 0 and/or at least one bit 1; the bit 0 corresponds to The element set includes: p0 1s and q0 0s; the element set corresponding to the bit 1 includes p1 1s and q1 0s; and a processor 42 for detecting the OFDM symbol.
  • transceiver 41 and the processor 42 can be obtained by referring to the related description of the reflection device in the signal sending method described in FIG. 10, which will not be repeated here.
  • transceiver can be an integrated device with a transceiver function, or it can be composed of an independent receiver with a receiving function and a transmitter with a sending function, logically called a "transceiver" .
  • the communication device may also include a transceiver unit and a processing unit,
  • the transceiver unit is used to perform the operation of the reflection device in step S303 of the embodiment shown in FIG. 12; and the processing unit is used to perform the operation of S304 in the embodiment shown in FIG.
  • the communication device receives the OFDM symbols sent by the sending device in a process compatible with sending signals to the reflection device and the conventional communication device, detects the OFDM symbols, and realizes the communication device and the sending device. Signal transmission between.
  • the communication device may be a chip or an integrated circuit during specific implementation.
  • the communication device when part or all of the signal sending and receiving methods of the foregoing embodiments are implemented by software, the communication device includes: a memory for storing a program; a processor for executing the program stored in the memory, and when the program is When executed, the communication device can respectively implement the signal sending and receiving methods provided by the sending device or the reflecting device in the embodiments shown in FIG. 3, FIG. 4, and FIG. 10.
  • the foregoing memory may be a physically independent unit, or may be integrated with the processor. This memory can also be used to store data.
  • the communication device may also only include a processor.
  • the memory for storing the program is located outside the communication device, and the processor is connected to the memory through a circuit/wire for reading and executing the program stored in the memory.
  • the processor may be a central processing unit (CPU), a network processor (NP), or a combination of CPU and NP.
  • CPU central processing unit
  • NP network processor
  • the processor may further include a hardware chip.
  • the aforementioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • the aforementioned PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (generic array logic, GAL), or any combination thereof.
  • the memory may include volatile memory (volatile memory), such as random-access memory (RAM); the memory may also include non-volatile memory (non-volatile memory), such as flash memory (flash memory) , Hard disk drive (HDD) or solid-state drive (SSD); the memory may also include a combination of the foregoing types of memory.
  • volatile memory volatile memory
  • non-volatile memory non-volatile memory
  • flash memory flash memory
  • HDD Hard disk drive
  • SSD solid-state drive
  • the memory may also include a combination of the foregoing types of memory.
  • the embodiments of the present application also provide a computer-readable storage medium in which a computer program or instruction is stored, and when the computer program or instruction is executed, the method in the foregoing embodiment is implemented.
  • the embodiments of the present application also provide a computer program product containing instructions, which when the instructions are run on a computer, cause the computer to execute the method in the above-mentioned embodiments.
  • the embodiment of the present application also provides a communication system including the above-mentioned communication device.
  • the disclosed system, device, and method may be implemented in other ways.
  • the division of the unit is only a logical function division. In actual implementation, there can be other divisions.
  • multiple units or components can be combined or integrated into another system, or some features can be ignored or not. carried out.
  • the displayed or discussed mutual coupling, or direct coupling, or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions can be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium.
  • the computer instructions can be sent from one website, computer, server, or data center to another via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) A website, computer, server or data center for transmission.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium can be read-only memory (ROM), random access memory (RAM), or magnetic medium, such as floppy disk, hard disk, magnetic tape, magnetic disk, or optical medium, for example, Digital versatile disc (DVD) or semiconductor media, for example, solid state disk (SSD), etc.

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Abstract

The present application discloses a signal sending method, a signal receiving method, and a communication apparatus. In the present application, a sending device modulates encoded bits using a first modulation mode to obtain a first signal, performs repeated operations on sampling points in the first signal to obtain a second signal, processes the second signal to generate an orthogonal frequency division multiplexing (OFDM) symbol, and sends the OFDM symbol to a backscatter device. The backscatter device receives the OFDM symbol sent by the sending device, and detects a modulation signal corresponding to the OFDM symbol. In a scenario where backscatter communication and cellular communication are fused, a signal can be sent to a backscatter device and a conventional communication device in a compatible manner, without the need to make great changes on the structure of a sending device, thereby reducing the costs of the sending device.

Description

一种信号的发送、接收方法及通信装置Signal sending and receiving method and communication device
本申请要求于2019年6月6日提交中国国家知识产权局、申请号为201910490703.X、发明名称为“一种信号的发送、接收方法及通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is 201910490703.X, and the invention title is "a signal transmission and reception method and communication device" on June 6, 2019, all of which The content is incorporated in this application by reference.
技术领域Technical field
本申请涉及通信技术领域，尤其涉及反向散射通信和蜂窝网络通信融合技术领域。This application relates to the field of communication technology, in particular to the field of backscatter communication and cellular network communication fusion technology.
背景技术Background technique
反向散射通信(backscatter communication)(简称：反射通信)是一种低功耗、低成本的通信技术，目前已经广泛应用的射频标识(radio-frequency identification，RFID)就是一种典型的反向散射通信技术。由于功耗是低成本物联网器件的核心问题，因此反射通信技术在物联网领域具有较好的前景。Backscatter communication (abbreviation: reflection communication) is a low-power, low-cost communication technology, and the widely used radio-frequency identification (RFID) is a typical backscatter Communication technology. Since power consumption is the core issue of low-cost IoT devices, reflective communication technology has a good prospect in the field of IoT.
常规的通信设备需要复杂的射频器件进行信号的调制和放大，这些射频器件包括数模转化器、功率放大器、晶体振荡器等，它们通常具有高功耗的特点。而反向散射通信无需这些器件，它可以将接收到激励信号进行反射，并在反射的信号上携带自己的数据。反射通信的成本和功耗均比传统的通信设备有若干个数量级的降低。Conventional communication equipment requires complex radio frequency devices for signal modulation and amplification. These radio frequency devices include digital-to-analog converters, power amplifiers, crystal oscillators, etc., which usually have high power consumption characteristics. The backscatter communication does not need these devices, it can reflect the received excitation signal and carry its own data on the reflected signal. The cost and power consumption of reflection communication are several orders of magnitude lower than that of traditional communication equipment.
典型的反射通信网络示意图如图1所示，从功能的角度看，反射通信***可以由三个节点组成：激励器、反射器、接收器。它的通信过程可以简单描述为：第一步：激励器发送无线信号h 2*s；第二步：反射器接收激励器的无线信号，并将信号反射；在反射时，反射器会将自身信号承载于反射信号h 3*(mh 2*s)上；第三步：接收器接收反射器发送的信号，并解调出承载于反射信号上的数据。需要注意的是，上述激励器和接收器，也可以集成在同一个设备上，例如传统的RFID读写器，就同时具有激励器和接收器的功能。 A schematic diagram of a typical reflection communication network is shown in Figure 1. From a functional point of view, the reflection communication system can be composed of three nodes: exciter, reflector, and receiver. Its communication process can be simply described as: the first step: the exciter sends a wireless signal h 2 *s; the second step: the reflector receives the wireless signal from the exciter and reflects the signal; during reflection, the reflector will reflect itself The signal is carried on the reflected signal h 3 *(mh 2 *s); the third step: the receiver receives the signal sent by the reflector and demodulates the data carried on the reflected signal. It should be noted that the above-mentioned exciter and receiver can also be integrated on the same device. For example, a traditional RFID reader/writer has the functions of exciter and receiver at the same time.
激励器的其它名称包括：询问器(interrogator)、读写器(reader)、用户设备(user equipment,UE)；反射器的其它可能名称包括：反射设备(backscatter device)，无源设备(passive device)，半有源设备(semi-passive device)，散射信号设备(ambient signal device)，或者标签(tag)等。反射通信又可以称为：被动通信(passive communication)，无源通信，或者散射通信(ambient communication)等。Other names of the exciter include: interrogator, reader, user equipment (UE); other possible names of reflector include: backscatter device, passive device ), semi-passive device, ambient signal device, or tag, etc. Reflective communication can also be called: passive communication, passive communication, or ambient communication, etc.
在第三代合作伙伴计划(3 rd generation partnership project，3GPP)的后续演进中，例如长期演进(long term evolution，LTE)或新无线(new radio，NR)的后续版本，可能将反射通信融入蜂窝网络中。例如，将终端设备和网络设备分别作为图1中的激励器和接收器，实现发射设备与终端或网络设备的通信。在具有反射设备的网络中，反射设备可能需要接收来自终端设备或网络设备的激励信号，数据信号，充电信号等。 In the follow-up evolution of the 3rd generation partnership project (3 rd generation partnership project, 3GPP), such as the follow-up version of long-term evolution (LTE) or new radio (new radio, NR), reflective communication may be integrated into the cellular Network. For example, the terminal device and the network device are respectively used as the exciter and receiver in FIG. 1 to realize the communication between the transmitting device and the terminal or network device. In a network with reflection devices, the reflection devices may need to receive excitation signals, data signals, charging signals, etc. from terminal devices or network devices.
在RFID中，询问器向标签发送的数据一般采用幅移键控(amplitude shift keying，ASK)或相移键控(phase shift keying，PSK)调制方式。承载调制符号的成形脉冲一般为方波或近似于方波。如图2所示的RFID中询问器向标签发送的数据信号示意图，在图2中，询问器向标签发送两种数据：数据0(data-0)和数据1(data-1)，两种数据均采用ASK调制， 但两种数据具有不同的脉冲长度(例如，图2中，data-0的脉冲长度为1个时间单位(Tari)，data-1的脉冲长度为1.5Tari～2.0Tari)，标签通过脉冲长度区分收到的是data-0还是data-1。在RFID协议中，将这种信号称为基于脉冲宽度编码(pulse-interval encoding，PIE)的ASK调制信号。RFID采用上述调制及编码方式，可以降低标签的复杂度，从而使得标签可以以较低的硬件成本实现信号接收。In RFID, the data sent by the interrogator to the tag generally adopts amplitude shift keying (ASK) or phase shift keying (PSK) modulation. The shaped pulses carrying modulation symbols are generally square waves or similar to square waves. Figure 2 shows the schematic diagram of the data signal sent by the interrogator to the tag in the RFID. In Figure 2, the interrogator sends two kinds of data to the tag: data 0 (data-0) and data 1 (data-1). The data is modulated by ASK, but the two types of data have different pulse lengths (for example, in Figure 2, the pulse length of data-0 is 1 time unit (Tari), and the pulse length of data-1 is 1.5Tari～2.0Tari) , The tag distinguishes data-0 or data-1 by the pulse length. In the RFID protocol, this signal is called an ASK modulated signal based on pulse-interval encoding (PIE). RFID adopts the above-mentioned modulation and encoding method, which can reduce the complexity of the tag, so that the tag can realize signal reception at a lower hardware cost.
然而，现有询问器至标签信号的格式与蜂窝网络通信中通常使用的波形(例如，正交频分复用(orthogonal frequency division multiplexing，OFDM)和离散傅里叶变换扩展正交频分复用(DFT spread OFDM，DFT-s-OFDM))具有不同的形式。在反射通信与蜂窝通信融合的场景下，若终端设备和网络设备直接采用ASK调制信号，则无法直接复用已有的发射机结构，从而可能造成终端设备或网络设备的成本增加。However, the existing interrogator-to-tag signal format is compatible with the waveforms commonly used in cellular network communications (for example, orthogonal frequency division multiplexing (OFDM) and discrete Fourier transform extended orthogonal frequency division multiplexing). (DFT spread OFDM, DFT-s-OFDM)) has different forms. In the scenario of the convergence of reflection communication and cellular communication, if terminal equipment and network equipment directly use ASK modulation signals, the existing transmitter structure cannot be directly reused, which may increase the cost of terminal equipment or network equipment.
因此，在发送设备进行反向散射通信和蜂窝网络通信时，需要降低发送设备的成本。Therefore, when the sending device performs backscatter communication and cellular network communication, the cost of the sending device needs to be reduced.
发明内容Summary of the invention
本申请提供一种信号的发送、接收方法及通信装置，以在无需增加发送设备成本的情况下，使得发送设备可以兼容反向散射通信和蜂窝网络通信。The present application provides a signal sending and receiving method and communication device, so that the sending device can be compatible with backscatter communication and cellular network communication without increasing the cost of the sending device.
第一方面，提供了一种信号的发送方法，所述方法包括：发送设备采用第一调制方式对编码后的比特进行调制，得到第一信号；所述发送设备对所述第一信号中的采样点进行重复操作，得到第二信号；所述发送设备对所述第二信号进行处理，生成正交频分复用OFDM符号；以及所述发送设备向反射设备发送所述OFDM符号。在该方面中，在反射通信与蜂窝通信融合的场景下，无需对发送设备的结构做大的改变，可以兼容向反射设备和常规的通信设备发送信号，降低了发送设备的成本。In a first aspect, a signal transmission method is provided. The method includes: a transmitting device uses a first modulation method to modulate encoded bits to obtain a first signal; Repeating the sampling point to obtain the second signal; the sending device processes the second signal to generate an orthogonal frequency division multiplexing OFDM symbol; and the sending device sends the OFDM symbol to the reflection device. In this aspect, in a scenario where reflection communication and cellular communication merge, there is no need to make major changes to the structure of the sending device, and it can be compatible with sending signals to the reflection device and conventional communication devices, reducing the cost of the sending device.
在一个实现中，所述第一信号中的采样点包括至少一个第一采样点、以及至少一个第二采样点，所述发送设备对所述第一信号中的采样点进行重复操作，得到第二信号，包括：所述发送设备对所述至少一个第一采样点重复R0次，以及对所述至少一个第二采样点重复R1次，得到所述第二信号，所述第二信号包括所述R0个第一采样点和所述R1个第二采样点。在该实现中，通过对调制后得到的第一信号中的采样点进行重复操作，可以使得得到的信号包络与理想信号包络较为接近。In one implementation, the sampling points in the first signal include at least one first sampling point and at least one second sampling point, and the sending device performs repeated operations on the sampling points in the first signal to obtain the first sampling point. The second signal includes: the sending device repeats R0 times for the at least one first sampling point and repeats R1 times for the at least one second sampling point to obtain the second signal, and the second signal includes all The R0 first sampling points and the R1 second sampling points. In this implementation, by performing repeated operations on the sampling points in the first signal obtained after modulation, the obtained signal envelope can be made closer to the ideal signal envelope.
在又一个实现中，所述方法还包括：所述发送设备对所述第二信号进行上采样操作，其中，上采样因子为频域变换所要求的采样点的个数与所述R0和R1之和的商。在该实现中，通过对第二信号进行上采样操作，使得得到的信号包络与理想信号包络较为接近。In yet another implementation, the method further includes: the transmitting device performs an up-sampling operation on the second signal, wherein the up-sampling factor is the number of sampling points required by the frequency domain transformation and the R0 and R1 The quotient of the sum. In this implementation, by performing an up-sampling operation on the second signal, the obtained signal envelope is closer to the ideal signal envelope.
在又一个实现中，所述发送设备对所述第二信号进行处理，生成正交频分复用OFDM符号，包括：所述发送设备对所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；所述发送设备对所述频域向量元素进行扩展，得到扩展后的频域向量元素；以及所述发送设备将频域频谱成形FDSS滤波器参数与所述扩展后的频域向量元素相乘，得到所述OFDM符号。在该实现中，通过对第二信号进行频域变换、频域循环扩展和FDSS等，使得得到的信号包络与理想信号包络较为接近。In another implementation, the sending device processes the second signal to generate orthogonal frequency division multiplexing OFDM symbols, including: the sending device performs frequency domain transformation on the second signal to obtain a frequency domain vector Element, the size of the frequency domain transform is the first bandwidth; the sending device expands the frequency domain vector element to obtain the expanded frequency domain vector element; and the sending device shapes the frequency domain spectrum into an FDSS filter The parameter is multiplied by the expanded frequency domain vector element to obtain the OFDM symbol. In this implementation, by performing frequency domain transformation, frequency domain cyclic extension, and FDSS on the second signal, the obtained signal envelope is closer to the ideal signal envelope.
在又一个实现中，所述发送设备对所述第二信号进行处理，生成正交频分复用OFDM符号，包括：所述发送设备对进行上采样操作后的所述第二信号进行频域变换，得到频域 向量元素，所述频域变换的尺寸是第一带宽；以及所述发送设备将频域频谱成形FDSS滤波器参数与所述频域向量元素相乘，得到所述OFDM符号。在该实现中，通过对第二信号进行频域变换和FDSS等，使得得到的信号包络与理想信号包络较为接近。In another implementation, the sending device processes the second signal to generate orthogonal frequency division multiplexing OFDM symbols, including: the sending device performs frequency domain on the second signal after the upsampling operation Transform to obtain a frequency domain vector element, the size of the frequency domain transform is the first bandwidth; and the transmitting device multiplies the frequency domain spectrum shaping FDSS filter parameter by the frequency domain vector element to obtain the OFDM symbol. In this implementation, by performing frequency domain transformation and FDSS on the second signal, the obtained signal envelope is closer to the ideal signal envelope.
在又一个实现中，所述方法还包括：所述发送设备向所述反射设备发送第一指示，其中，所述第一指示用于指示所述反射设备采用第一参数接收所述OFDM符号；其中，所述第一参数包括如下至少一个参数：所述OFDM符号承载的比特数K，频域变换所要求的采样点的个数M，OFDM符号持续时长，子载波间隔，或者循环前缀类型。在该实现中，发送设备向反射设备发送第一参数，使得反射设备可以根据该第一参数配置反射设备的接收机，从而可靠地接收到发送设备发送的OFDM符号。In another implementation, the method further includes: the sending device sends a first instruction to the reflection device, where the first instruction is used to instruct the reflection device to use the first parameter to receive the OFDM symbol; Wherein, the first parameter includes at least one of the following parameters: the number of bits K carried by the OFDM symbol, the number M of sampling points required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix. In this implementation, the sending device sends the first parameter to the reflecting device, so that the reflecting device can configure the receiver of the reflecting device according to the first parameter, so as to reliably receive the OFDM symbol sent by the sending device.
第二方面，提供了一种信号的接收方法，所述方法包括：反射设备接收发送设备发送的正交频分复用OFDM符号，其中，所述OFDM符号是发送设备对第二信号进行处理后生成的，所述第二信号是所述发送设备对第一信号中的采样点进行重复操作得到的，所述第一信号是所述发送设备采用第一调制方式对编码后的比特进行调制得到的；以及所述反射设备检测所述OFDM符号。在该方面中，反射设备接收发送设备以兼容向反射设备和常规的通信设备发送信号的流程发送的OFDM符号，检测OFDM符号，实现了该反射设备与发送设备之间的信号传输。In a second aspect, a signal receiving method is provided, the method includes: a reflection device receives an orthogonal frequency division multiplexing OFDM symbol sent by a sending device, wherein the OFDM symbol is after the sending device processes the second signal Generated, the second signal is obtained by the sending device performing repeated operations on the sampling points in the first signal, and the first signal is obtained by modulating the coded bits by the sending device using the first modulation method的; and the reflection device detects the OFDM symbol. In this aspect, the reflection device receives the OFDM symbol sent by the sending device in a process compatible with the signal transmission to the reflection device and the conventional communication device, detects the OFDM symbol, and realizes signal transmission between the reflection device and the sending device.
在又一个实现中，所述方法还包括：所述反射设备接收第一指示，所述第一指示包括第一参数,其中，所述第一参数用于指示所述反射设备采用第一参数接收所述OFDM符号：所述OFDM符号中包括的比特数K、频域变换所要求的采样点的个数M、OFDM符号持续时长、子载波间隔、或者循环前缀类型。在该实现中，反射设备采用上述第一参数配置反射设备的接收机，使得该接收机可以可靠地接收到发送设备发送的OFDM符号。In yet another implementation, the method further includes: the reflection device receives a first instruction, the first instruction includes a first parameter, wherein the first parameter is used to instruct the reflection device to use the first parameter to receive The OFDM symbol: the number of bits K included in the OFDM symbol, the number of sampling points M required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix. In this implementation, the reflection device uses the above-mentioned first parameter to configure the receiver of the reflection device, so that the receiver can reliably receive the OFDM symbol sent by the sending device.
第三方面，提供了一种信号的发送方法，所述方法包括：发送设备根据编码后的比特与元素集合的映射关系，获取所述编码后的比特对应的元素集合，作为第一信号，其中，所述编码后的比特包括至少一个比特0、和/或至少一个比特1；所述比特0对应的元素集合包括：p0个1和和q0个0；所述比特1对应的元素集合包括：p1个1和和q1个0；所述发送设备对所述第一信号进行处理，生成正交频分复用OFDM符号；以及所述发送设备向反射设备发送所述OFDM符号。在该方面中，发送设备根据编码后的比特与元素集合的映射关系，获取与编码后的比特对应的向量，作为第一信号，发送设备对第一信号处理，生成并发送OFDM符号，反射设备以第一参数接收该OFDM符号，并检测OFDM符号对应的调制信号，在反射通信与蜂窝通信融合的场景下，无需对发送设备的结构做大的改变，可以兼容向反射设备和常规的通信设备发送信号，降低了发送设备的成本。In a third aspect, a method for sending a signal is provided. The method includes: a sending device obtains an element set corresponding to the encoded bit according to a mapping relationship between the encoded bit and the element set, as the first signal, wherein The encoded bit includes at least one bit 0 and/or at least one bit 1; the set of elements corresponding to the bit 0 includes: p0 1s and q0 0s; the set of elements corresponding to the bit 1 includes: p1 1 and q1 0; the transmitting device processes the first signal to generate an orthogonal frequency division multiplexing OFDM symbol; and the transmitting device transmits the OFDM symbol to the reflection device. In this aspect, the transmitting device obtains the vector corresponding to the encoded bit according to the mapping relationship between the encoded bit and the element set, as the first signal, the transmitting device processes the first signal, generates and transmits the OFDM symbol, and the reflection device Receive the OFDM symbol with the first parameter and detect the modulated signal corresponding to the OFDM symbol. In the scenario where reflection communication and cellular communication are merged, there is no need to make major changes to the structure of the transmitting device, and it can be compatible with reflection devices and conventional communication devices. Sending signals reduces the cost of sending equipment.
在又一个实现中，p0和p1不相等，q0和q1相等；或者p0和p1相等，q0和q1不相等；或者p0和p1不相等，q0和q1不相等；或者p0和p1不相等，p0和q0之和与p1和q1之和相等；或者q0和q1不相等，p0和q0之和与p1和q1之和相等。In another implementation, p0 and p1 are not equal, q0 and q1 are equal; or p0 and p1 are equal, q0 and q1 are not equal; or p0 and p1 are not equal, q0 and q1 are not equal; or p0 and p1 are not equal, p0 The sum of q0 is equal to the sum of p1 and q1; or q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
在又一个实现中，所述发送设备对所述第一信号进行处理，生成OFDM符号，包括：所述发送设备对所述第一信号进行上采样操作，得到第二信号，其中，上采样因子为所述频域变换所要求的采样点的个数与所述第一信号的采样点的个数的商。In another implementation, the sending device processes the first signal to generate an OFDM symbol, including: the sending device performs an up-sampling operation on the first signal to obtain a second signal, wherein the up-sampling factor It is the quotient of the number of sampling points required by the frequency domain transformation and the number of sampling points of the first signal.
在又一个实现中，所述发送设备对所述第一信号进行处理，生成OFDM符号，包括： 所述发送设备对所述第一信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；所述发送设备对所述频域向量元素进行扩展，得到所述第一信号的扩展后的频域向量元素；以及所述发送设备将频域频谱成形FDSS滤波器参数与所述第一信号的扩展后的频域向量元素相乘，得到所述OFDM符号。In another implementation, the sending device processes the first signal to generate OFDM symbols, including: the sending device performs frequency domain transformation on the first signal to obtain frequency domain vector elements, and the frequency domain The transformed size is the first bandwidth; the sending device expands the frequency domain vector element to obtain the expanded frequency domain vector element of the first signal; and the sending device shapes the frequency domain spectrum into an FDSS filter The parameter is multiplied by the expanded frequency domain vector element of the first signal to obtain the OFDM symbol.
在又一个实现中，所述发送设备对所述第一信号进行处理，生成OFDM符号，包括：所述发送设备对所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；以及所述发送设备将频域频谱成形FDSS滤波器参数与所述第二信号的频域向量元素相乘，得到所述OFDM符号。In another implementation, the sending device processes the first signal to generate OFDM symbols, including: the sending device performs frequency domain transformation on the second signal to obtain frequency domain vector elements, and the frequency domain The transformed size is the first bandwidth; and the transmitting device multiplies the frequency domain spectrum shaping FDSS filter parameter with the frequency domain vector element of the second signal to obtain the OFDM symbol.
第四方面，提供了一种信号的接收方法，所述方法包括：反射设备接收发送设备发送的正交频分复用OFDM符号，其中，所述OFDM符号是所述发送设备对第一信号进行处理后生成的，第一信号是所述根据编码后的比特与元素集合的映射关系，获取的所述编码后的比特对应的元素集合，其中，所述编码后的比特包括至少一个比特0、和/或至少一个比特1；所述比特0对应的元素集合包括：p0个1和和q0个0；所述比特1对应的元素集合包括：p1个1和和q1个0；以及所述反射设备检测所述OFDM符号。In a fourth aspect, a signal receiving method is provided, the method includes: a reflection device receives an orthogonal frequency division multiplexing OFDM symbol sent by a sending device, wherein the OFDM symbol is a signal performed by the sending device on the first signal. After processing, the first signal is the element set corresponding to the encoded bit obtained according to the mapping relationship between the encoded bit and the element set, wherein the encoded bit includes at least one bit 0, And/or at least one bit 1; the set of elements corresponding to bit 0 includes: p0 1s and q0 0s; the set of elements corresponding to bit 1 includes p1 1s and q1 0s; and the reflection The device detects the OFDM symbol.
在一个实现中，p0和p1不相等，q0和q1相等；或者p0和p1相等，q0和q1不相等；或者p0和p1不相等，q0和q1不相等；或者p0和p1不相等，p0和q0之和与p1和q1之和相等；或者q0和q1不相等，p0和q0之和与p1和q1之和相等。In one implementation, p0 and p1 are not equal, q0 and q1 are equal; or p0 and p1 are equal, q0 and q1 are not equal; or p0 and p1 are not equal, q0 and q1 are not equal; or p0 and p1 are not equal, p0 and The sum of q0 is equal to the sum of p1 and q1; or q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
第五方面，提供了一种通信装置，可以实现上述第一方面、第三方面或第一方面、第三方面的任一种可能的实现方式中的信号的发送方法。例如所述通信装置可以是芯片(如通信芯片等)或者发送设备。可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。In a fifth aspect, a communication device is provided, which can implement the signal sending method in the first aspect, the third aspect, or any one of the first and third aspects. For example, the communication device may be a chip (such as a communication chip, etc.) or a sending device. The above method can be implemented by software, hardware, or by hardware executing corresponding software.
在一种可能的实现方式中，所述通信装置的结构中包括处理器、存储器；所述处理器被配置为支持所述装置执行上述信号的发送方法中相应的功能。存储器用于与处理器耦合，其保存所述装置必要的程序(指令)和/或数据。可选的，所述通信装置还可以包括通信接口用于支持所述装置与其他网元之间的通信。In a possible implementation manner, the structure of the communication device includes a processor and a memory; the processor is configured to support the device to perform corresponding functions in the signal sending method. The memory is used for coupling with the processor, and it stores the necessary programs (instructions) and/or data of the device. Optionally, the communication device may further include a communication interface for supporting communication between the device and other network elements.
在另一种可能的实现方式中，所述通信装置，可以包括执行上述方法中相应动作的单元或者模块。In another possible implementation manner, the communication device may include a unit or module that performs corresponding actions in the foregoing method.
其中，该通信装置包括：处理单元，用于采用第一调制方式对编码后的比特进行调制，得到第一信号；所述处理单元，还用于对所述第一信号中的采样点进行重复操作，得到第二信号；所述处理单元，还用于对所述第二信号进行处理，生成正交频分复用OFDM符号；以及收发单元，用于向反射设备发送所述OFDM符号。Wherein, the communication device includes: a processing unit, configured to use a first modulation method to modulate the encoded bits to obtain a first signal; the processing unit is also configured to repeat sampling points in the first signal Operation to obtain a second signal; the processing unit is further configured to process the second signal to generate an orthogonal frequency division multiplexing OFDM symbol; and the transceiver unit is configured to send the OFDM symbol to the reflection device.
可选的，所述第一信号中的采样点包括至少一个第一采样点、以及至少一个第二采样点；所述处理单元，用于对所述至少一个第一采样点重复R0次，以及对所述至少一个第二采样点重复R1次，得到所述第二信号，所述第二信号包括所述R0个第一采样点和所述R1个第二采样点。Optionally, the sampling points in the first signal include at least one first sampling point and at least one second sampling point; the processing unit is configured to repeat R0 times on the at least one first sampling point, and Repeat R1 times for the at least one second sampling point to obtain the second signal, and the second signal includes the R0 first sampling points and the R1 second sampling points.
可选的，所述处理单元，用于对所述第二信号进行上采样操作，其中，上采样因子为频域变换所要求的采样点的个数与所述R0和R1之和的商。Optionally, the processing unit is configured to perform an up-sampling operation on the second signal, where the up-sampling factor is the quotient of the number of sampling points required for frequency domain transformation and the sum of R0 and R1.
可选的，所述处理单元，用于对所述第二信号进行频域变换，得到频域向量元素，所 述频域变换的尺寸是第一带宽；所述处理单元，还用于对所述频域向量元素进行扩展，得到扩展后的频域向量元素；以及所述处理单元，还用于将频域频谱成形FDSS滤波器参数与所述扩展后的频域向量元素相乘，得到所述OFDM符号。Optionally, the processing unit is configured to perform frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; the processing unit is also configured to The frequency domain vector element is expanded to obtain an expanded frequency domain vector element; and the processing unit is further configured to multiply the frequency domain spectrum shaping FDSS filter parameter by the expanded frequency domain vector element to obtain the Mentioned OFDM symbol.
可选的，所述处理单元，用于对进行上采样操作后的所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；以及所述处理单元，还用于将频域频谱成形FDSS滤波器参数与所述扩展后的频域向量元素相乘，得到所述OFDM符号。Optionally, the processing unit is configured to perform frequency domain transformation on the second signal after the upsampling operation to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and the processing The unit is further configured to multiply the frequency domain spectrum shaping FDSS filter parameter by the expanded frequency domain vector element to obtain the OFDM symbol.
可选的，所述收发单元，还用于向所述反射设备发送第一指示，其中，所述第一指示用于指示所述反射设备采用第一参数接收所述OFDM符号；其中，所述第一参数包括如下至少一个参数：所述OFDM符号承载的比特数K，频域变换所要求的采样点的个数M，OFDM符号持续时长，子载波间隔，或者循环前缀类型。Optionally, the transceiving unit is further configured to send a first instruction to the reflecting device, where the first instruction is used to instruct the reflecting device to use the first parameter to receive the OFDM symbol; wherein, the The first parameter includes at least one of the following parameters: the number of bits K carried by the OFDM symbol, the number M of sampling points required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
在又一种可能的实现方式中，所述通信装置，可以包括执行上述方法中相应动作的单元或者模块。In another possible implementation manner, the communication device may include a unit or module that performs corresponding actions in the foregoing method.
其中，该通信装置包括：处理单元，用于根据编码后的比特与元素集合的映射关系，获取与所述编码后的比特对应的元素集合，作为第一信号，其中，所述编码后的比特包括至少一个比特0、和/或至少一个比特1；所述比特0对应的元素集合包括：p0个1和和q0个0；所述比特1对应的元素集合包括：p1个1和和q1个0；所述处理单元，还用于对所述第一信号进行处理，生成正交频分复用OFDM符号；以及收发单元，用于向反射设备发送所述OFDM符号。Wherein, the communication device includes: a processing unit, configured to obtain a set of elements corresponding to the encoded bits according to the mapping relationship between the encoded bits and the element sets, as the first signal, wherein the encoded bits It includes at least one bit 0 and/or at least one bit 1; the set of elements corresponding to bit 0 includes: p0 1s and q0 0s; the set of elements corresponding to bit 1 includes p1 1s and q1 0; the processing unit is further configured to process the first signal to generate an orthogonal frequency division multiplexing OFDM symbol; and the transceiver unit is configured to send the OFDM symbol to the reflection device.
可选的，p0和p1不相等，q0和q1相等；或者p0和p1相等，q0和q1不相等；或者p0和p1不相等，q0和q1不相等；或者p0和p1不相等，p0和q0之和与p1和q1之和相等；或者q0和q1不相等，p0和q0之和与p1和q1之和相等。Optionally, p0 and p1 are not equal, q0 and q1 are equal; or p0 and p1 are equal, and q0 and q1 are not equal; or p0 and p1 are not equal, and q0 and q1 are not equal; or p0 and p1 are not equal, p0 and q0 The sum is equal to the sum of p1 and q1; or q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
可选的，所述处理单元，用于对所述第一信号进行上采样操作，得到第二信号，其中，上采样因子为所述频域变换所要求的采样点的个数与所述第一信号的采样点的个数的商。Optionally, the processing unit is configured to perform an up-sampling operation on the first signal to obtain a second signal, wherein the up-sampling factor is the number of sampling points required by the frequency domain transform and the first signal The quotient of the number of sampling points of a signal.
可选的，所述处理单元，用于对所述第一信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；所述处理单元，还用于对所述频域向量元素进行扩展，得到所述第一信号的扩展后的频域向量元素；以及所述处理单元，还用于将频域频谱成形FDSS滤波器参数与所述第一信号的扩展后的频域向量元素相乘，得到所述OFDM符号。Optionally, the processing unit is configured to perform frequency domain transformation on the first signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and the processing unit is further configured to The frequency domain vector element is expanded to obtain the expanded frequency domain vector element of the first signal; and the processing unit is further configured to combine the frequency domain spectrum shaping FDSS filter parameters with the expanded frequency domain of the first signal The frequency domain vector elements of are multiplied to obtain the OFDM symbol.
可选的，所述处理单元，用于对所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；以及所述处理单元，还用于将频域频谱成形FDSS滤波器参数与所述第二信号的扩展后的频域向量元素相乘，得到所述OFDM符号。Optionally, the processing unit is configured to perform frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and the processing unit is further configured to transform The frequency domain spectrum shaping FDSS filter parameter is multiplied by the expanded frequency domain vector element of the second signal to obtain the OFDM symbol.
在又一种可能的实现方式中，包括处理器和收发装置，所述处理器与所述收发装置耦合，所述处理器用于执行计算机程序或指令，以控制所述收发装置进行信息的接收和发送；当所述处理器执行所述计算机程序或指令时，所述处理器还用于实现上述方法。其中，所述收发装置可以为收发器、收发电路或输入输出接口。当所述通信装置为芯片时，所述收发装置为收发电路或输入输出接口。In another possible implementation manner, a processor and a transceiver device are included, the processor is coupled with the transceiver device, and the processor is used to execute a computer program or instruction to control the transceiver device to receive and receive information. Send; when the processor executes the computer program or instruction, the processor is also used to implement the above method. Wherein, the transceiving device may be a transceiver, a transceiving circuit or an input/output interface. When the communication device is a chip, the transceiving device is a transceiving circuit or an input/output interface.
当上述信号的发送方法通过硬件、或者通过硬件执行相应的软件实现时，所述处理器可以执行上述处理单元的操作；所述收发装置可以执行上述收发单元的操作。When the foregoing signal sending method is implemented by hardware or by hardware executing corresponding software, the processor may perform the operations of the foregoing processing unit; the transceiving device may perform the operations of the foregoing transceiving unit.
在又一种可能的实现方式中，所述通信装置的结构中包括处理器；所述处理器被配置 为支持所述装置执行上述信号的发送方法中相应的功能。In yet another possible implementation manner, the structure of the communication device includes a processor; the processor is configured to support the device to perform corresponding functions in the foregoing signal sending method.
在又一种可能的实现方式中，所述通信装置的结构中包括处理器，所述处理器用于与存储器耦合，并读取存储器中的指令，并根据所述指令实现上述方法。In yet another possible implementation manner, the structure of the communication device includes a processor, and the processor is configured to couple with the memory, read instructions in the memory, and implement the foregoing method according to the instructions.
在又一种可能的实现方式中，所述通信装置的结构中包括收发器，用于实现上述信号的发送方法。In another possible implementation manner, the structure of the communication device includes a transceiver for implementing the foregoing signal sending method.
当所述通信装置为芯片时，收发单元可以是输入输出单元，比如输入输出电路或者通信接口。当所述通信装置为发送设备时，收发单元可以是发射/接收器或发射/接收机。When the communication device is a chip, the transceiver unit may be an input/output unit, such as an input/output circuit or a communication interface. When the communication device is a transmitting device, the transceiver unit may be a transmitter/receiver or a transmitter/receiver.
第六方面，提供了一种通信装置，可以实现上述第二方面、第四方面或第二方面、第四方面的任一种可能的实现方式中的通信方法。例如所述通信装置可以是芯片(如通信芯片等)或者接收设备，可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。In a sixth aspect, a communication device is provided, which can implement the communication method in any possible implementation manner of the second aspect, the fourth aspect, or the second aspect and the fourth aspect. For example, the communication device may be a chip (such as a communication chip, etc.) or a receiving device, and the foregoing method may be implemented by software, hardware, or by hardware executing corresponding software.
在一种可能的实现方式中，所述通信装置的结构中包括处理器、存储器；所述处理器被配置为支持所述装置执行上述通信方法中相应的功能。存储器用于与处理器耦合，其保存所述装置必要的程序(指令)和数据。可选的，所述通信装置还可以包括通信接口用于支持所述装置与其他网元之间的通信。In a possible implementation manner, the structure of the communication device includes a processor and a memory; the processor is configured to support the device to perform the corresponding functions in the foregoing communication method. The memory is used to couple with the processor, and it stores the necessary programs (instructions) and data of the device. Optionally, the communication device may further include a communication interface for supporting communication between the device and other network elements.
在另一种可能的实现方式中，所述通信装置，可以包括执行上述方法中的相应动作的单元模块。In another possible implementation manner, the communication device may include unit modules that perform corresponding actions in the foregoing method.
其中，该通信装置包括：收发单元，用于接收发送设备发送的正交频分复用OFDM符号，其中，所述OFDM符号是所述发送设备对第二信号进行处理后生成的，所述第二信号是所述发送设备对第一信号中的采样点进行重复操作得到的，所述第一信号是所述发送设备采用第一调制方式对编码后的比特进行调制得到的；以及处理单元，用于检测所述OFDM符号。Wherein, the communication device includes: a transceiving unit configured to receive orthogonal frequency division multiplexing OFDM symbols sent by a sending device, wherein the OFDM symbols are generated after the sending device processes the second signal, and the first The second signal is obtained by the sending device performing repeated operations on the sampling points in the first signal, and the first signal is obtained by modulating the encoded bits by the sending device using the first modulation method; and a processing unit, Used to detect the OFDM symbol.
可选的，所述收发单元，用于接收第一指示，所述第一指示用于指示所述反射设备采用第一参数接收所述OFDM符号，其中，所述第一参数包括以下至少一个参数：所述OFDM符号中包括的比特数K、频域变换所要求的采样点的个数M、OFDM符号持续时长、子载波间隔、循环前缀类型。Optionally, the transceiver unit is configured to receive a first indication, where the first indication is used to instruct the reflection device to use a first parameter to receive the OFDM symbol, where the first parameter includes at least one of the following parameters : The number of bits included in the OFDM symbol K, the number of sampling points M required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, and the type of cyclic prefix.
在又一种可能的实现方式中，所述通信装置，可以包括执行上述方法中的相应动作的单元模块。In another possible implementation manner, the communication device may include a unit module that performs the corresponding actions in the foregoing method.
其中，该通信装置包括：收发单元，用于接收发送设备发送的正交频分复用OFDM符号，其中，所述OFDM符号是所述发送设备对第一信号进行处理后生成的，第一信号是所述根据编码后的比特与元素集合的映射关系，获取的所述编码后的比特对应的元素集合，其中，所述编码后的比特包括至少一个比特0、和/或至少一个比特1；所述比特0对应的元素集合包括：p0个1和和q0个0；所述比特1对应的元素集合包括：p1个1和和q1个0；以及处理单元，用于检测所述OFDM符号。Wherein, the communication device includes: a transceiving unit, configured to receive an orthogonal frequency division multiplexing OFDM symbol sent by a sending device, wherein the OFDM symbol is generated after the sending device processes the first signal, and the first signal Is the element set corresponding to the encoded bit obtained according to the mapping relationship between the encoded bit and the element set, wherein the encoded bit includes at least one bit 0 and/or at least one bit 1; The set of elements corresponding to bit 0 includes: p0 ones and q0 zeros; the set of elements corresponding to bit 1 includes p1 ones and q1 zeros; and a processing unit for detecting the OFDM symbol.
可选的，p0和p1不相等，q0和q1相等；或者p0和p1相等，q0和q1不相等；或者p0和p1不相等，q0和q1不相等；或者p0和p1不相等，p0和q0之和与p1和q1之和相等；或者q0和q1不相等，p0和q0之和与p1和q1之和相等。Optionally, p0 and p1 are not equal, q0 and q1 are equal; or p0 and p1 are equal, and q0 and q1 are not equal; or p0 and p1 are not equal, and q0 and q1 are not equal; or p0 and p1 are not equal, p0 and q0 The sum is equal to the sum of p1 and q1; or q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
在又一种可能的实现方式中，包括处理器和收发装置，所述处理器与所述收发装置耦合，所述处理器用于执行计算机程序或指令，以控制所述收发装置进行信息的接收和发送； 当所述处理器执行所述计算机程序或指令时，所述处理器还用于实现上述方法。其中，所述收发装置可以为收发器、收发电路或输入输出接口。当所述通信装置为芯片时，所述收发装置为收发电路或输入输出接口。In another possible implementation manner, a processor and a transceiver device are included, the processor is coupled with the transceiver device, and the processor is used to execute a computer program or instruction to control the transceiver device to receive and receive information. Send; When the processor executes the computer program or instruction, the processor is also used to implement the above method. Wherein, the transceiving device may be a transceiver, a transceiving circuit or an input/output interface. When the communication device is a chip, the transceiving device is a transceiving circuit or an input/output interface.
当上述通信方法通过硬件、或者通过硬件执行相应的软件实现时，所述处理器可以执行上述处理单元的操作；所述收发装置可以执行上述收发单元的操作。When the aforementioned communication method is implemented by hardware or by hardware executing corresponding software, the processor can execute the operation of the aforementioned processing unit; the transceiving device can execute the operation of the aforementioned transceiving unit.
在又一种可能的实现方式中，所述通信装置的结构中包括处理器；所述处理器被配置为支持所述装置执行上述通信方法中相应的功能。In another possible implementation manner, the structure of the communication device includes a processor; the processor is configured to support the device to perform corresponding functions in the foregoing communication method.
在又一种可能的实现方式中，所述通信装置的结构中包括处理器，所述处理器用于与存储器耦合，并读取存储器中的指令，并根据所述指令实现上述方法。In yet another possible implementation manner, the structure of the communication device includes a processor, and the processor is configured to couple with the memory, read instructions in the memory, and implement the foregoing method according to the instructions.
在又一种可能的实现方式中，所述通信装置的结构中包括收发器，用于实现上述通信方法。In yet another possible implementation manner, the structure of the communication device includes a transceiver for implementing the foregoing communication method.
当所述通信装置为芯片时，收发单元可以是输入输出单元，比如输入输出电路或者通信接口。当所述通信装置为接收设备时，收发单元可以是发送/接收器(也可以称为发送/接收机)。When the communication device is a chip, the transceiver unit may be an input/output unit, such as an input/output circuit or a communication interface. When the communication device is a receiving device, the transceiving unit may be a transmitter/receiver (also called a transmitter/receiver).
第七方面，提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序或指令，当所述计算机程序或指令被执行时，实现上述各方面所述的方法。In a seventh aspect, a computer-readable storage medium is provided, the computer-readable storage medium stores a computer program or instruction, and when the computer program or instruction is executed, the method described in each of the foregoing aspects is implemented.
第八方面，提供了一种包含指令的计算机程序产品，当该指令在计算机上运行时，使得计算机执行上述各方面所述的方法。In an eighth aspect, a computer program product containing instructions is provided. When the instructions are executed on a computer, the computer executes the methods described in the foregoing aspects.
第九方面，提供了一种通信***，包括上述第五方面和第六方面中的通信装置。In a ninth aspect, a communication system is provided, including the communication device in the fifth aspect and the sixth aspect.
附图说明Description of the drawings
下面将对本申请实施例或背景技术中所需要使用的附图进行说明。The following will describe the drawings that need to be used in the embodiments of the application or the background art.
图1为一种典型的反射通信网络示意图；Figure 1 is a schematic diagram of a typical reflective communication network;
图2为RFID中询问器向标签发送的数据信号示意图；Figure 2 is a schematic diagram of the data signal sent by the interrogator to the tag in the RFID;
图3为本申请实施例提供的一种信号发送及接收方法的流程示意图；FIG. 3 is a schematic flowchart of a signal sending and receiving method according to an embodiment of the application;
图4为本申请实施例提供的又一种信号发送及接收方法的流程示意图；FIG. 4 is a schematic flowchart of another signal sending and receiving method according to an embodiment of the application;
图5为本实施例提供的一种发送设备的发射结构示意图；FIG. 5 is a schematic diagram of the transmitting structure of a transmitting device provided by this embodiment;
图6为图5所示的发送设备的局部发射结构的示意图；FIG. 6 is a schematic diagram of a partial transmission structure of the transmitting device shown in FIG. 5;
图7为FDSS的示意图；Figure 7 is a schematic diagram of FDSS;
图8为发送设备给常规通信设备发送信号以及给反射设备发送信号的发射机结构对比示意图；FIG. 8 is a schematic diagram showing the comparison of the transmitter structure of the transmitting device sending signals to the conventional communication device and sending signals to the reflecting device;
图9a为理想情况下发送设备发送的信号示意图；Figure 9a is a schematic diagram of a signal sent by a sending device under ideal conditions;
图9b为采用本申请的方案发送设备发送的信号示意图；Figure 9b is a schematic diagram of a signal sent by a sending device using the solution of the present application;
图10为本申请实施例提供的又一种信号的发送及接收方法的流程示意图；FIG. 10 is a schematic flowchart of yet another signal sending and receiving method provided by an embodiment of this application;
图11为本实施例提供的又一种发送设备的发射结构示意图；FIG. 11 is a schematic diagram of the transmission structure of another transmission device provided by this embodiment;
图12为本申请实施例提供的一种通信装置的结构示意图；FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of this application;
图13为本申请实施例提供的又一种通信装置的结构示意图；FIG. 13 is a schematic structural diagram of yet another communication device provided by an embodiment of this application;
图14为本申请实施例提供的又一种通信装置的结构示意图；FIG. 14 is a schematic structural diagram of another communication device provided by an embodiment of this application;
图15为本申请实施例提供的又一种通信装置的结构示意图。FIG. 15 is a schematic structural diagram of another communication device provided by an embodiment of this application.
具体实施方式Detailed ways
下面结合本申请实施例中的附图对本申请实施例进行描述。The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.
在反射通信与蜂窝通信融合的场景下，考虑既能够与反射设备，又能够和其余常规设备(例如NR终端设备和网络设备)进行通信的设备。根据激励器、接收器与现有LTE或NR网络的对应关系，可以有如下四种：激励器为终端设备，接收器为网络设备；或者激励器为网络设备，接收器为终端设备；或者激励器和接收器都为终端设备；或者激励器和接收器都为网络设备。In the scenario where reflection communication and cellular communication merge, consider devices that can communicate with reflection devices and other conventional devices (such as NR terminal devices and network devices). According to the corresponding relationship between the exciter and receiver and the existing LTE or NR network, there can be four types: the exciter is a terminal device and the receiver is a network device; or the exciter is a network device and the receiver is a terminal device; or Both the exciter and receiver are terminal devices; or both the exciter and receiver are network devices.
其中，网络设备可以是能和终端设备通信的设备。网络设备可以是任意一种具有无线收发功能的设备，包括但不限于：基站(nodeB)、演进型基站(eNodeB)、第五代(the fifth generation，5G)通信***中的基站、未来通信***中的基站或网络设备、WiFi***中的接入节点、无线中继节点、无线回传节点等。网络设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器。网络设备还可以是小站，传输节点(transmission reference point，TRP)等。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。Among them, the network device may be a device that can communicate with terminal devices. The network device can be any device with wireless transceiver function, including but not limited to: base station (nodeB), evolved base station (eNodeB), base station in the fifth generation (5G) communication system, future communication system The base station or network equipment in the WiFi system, the access node, the wireless relay node, and the wireless backhaul node in the WiFi system. The network device may also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario. The network device may also be a small station, a transmission reference point (TRP), etc. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
终端设备是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上，如轮船上等；还可以部署在空中，如飞机、气球和卫星上等。终端设备可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self-driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对应用场景不做限定。终端设备有时也可以称为用户设备(user equipment，UE)、接入终端设备、UE单元、移动站、移动台、远方站、远程终端设备、移动设备、终端(terminal)、无线通信设备、UE代理或UE装置等。A terminal device is a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on the water, such as a ship, etc.; it can also be deployed in the air, such as aircraft, Balloons and satellites are first class. Terminal devices can be mobile phones, tablets, computers with wireless transceiver functions, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial control (industrial control) Wireless terminals in ), wireless terminals in self-driving (self-driving), wireless terminals in remote medical, wireless terminals in smart grid, and wireless terminals in transportation safety (transportation safety) Terminal, wireless terminal in smart city, wireless terminal in smart home, etc. The embodiment of this application does not limit the application scenario. Terminal equipment can sometimes be referred to as user equipment (UE), access terminal equipment, UE unit, mobile station, mobile station, remote station, remote terminal equipment, mobile equipment, terminal, wireless communication equipment, UE Agent or UE device, etc.
本申请实施例提供一种信号的发送、接收方法及通信装置，发送设备向发射设备和常规通信设备发送信号时，可以采用类似的处理流程，发送设备尽可能复用已有的发送模块及流程，从而无需对发送设备的结构做大的改变，降低了发送设备的成本。The embodiments of the present application provide a signal sending and receiving method and a communication device. When a sending device sends a signal to a sending device and a conventional communication device, a similar processing procedure can be used, and the sending device reuses existing sending modules and procedures as much as possible Therefore, there is no need to make major changes to the structure of the sending device, and the cost of the sending device is reduced.
图3为本申请实施例提供的一种信号发送及接收方法的流程示意图，示例性地，该方法可包括以下步骤：Fig. 3 is a schematic flow chart of a signal sending and receiving method provided by an embodiment of this application. Illustratively, the method may include the following steps:
S101、发送设备采用第一调制方式对编码后的比特进行调制，得到第一信号。S101. The sending device modulates the encoded bits by using the first modulation mode to obtain a first signal.
本实施例中，发送设备给反射设备发送信号时采用的调制方式，与发送设备给常规通信设备发送信号时采用的调制方式不同。这里考虑一个OFDM符号(或者一个DFT-S-OFDM符号)内的发送给反射设备的信号的生成。假设在一个OFDM符号的间隔内，发送设备需要传输K个编码后的比特。发送设备采用第一调制方式对K个编码后的比特进行调制，得 到第一信号。其中，第一调制方式可以是ASK、PSK(例如，BPSK)等。In this embodiment, the modulation method adopted by the sending device when sending signals to the reflecting device is different from the modulation method adopted by the sending device when sending signals to conventional communication devices. Consider here the generation of the signal sent to the reflection device in an OFDM symbol (or a DFT-S-OFDM symbol). Assume that within an interval of one OFDM symbol, the transmitting device needs to transmit K coded bits. The sending device modulates the K encoded bits by using the first modulation method to obtain the first signal. Among them, the first modulation mode may be ASK, PSK (for example, BPSK), and so on.
具体地，将K个编码后的比特转换为K1个采样点的调制符号。对于最简单的ASK和BPSK调制，K1＝K。而对于具有额外编码(例如曼彻斯特编码，差分编码等)的调制，K1可能不等于K。在调制(编码)后，ASK符号(第一信号)一般具有取值{a,0}，为了描述简便，以a＝1为例进行说明；类似的，BPSK符号(第一信号)一般具有取值{a,-a}，同样的，以a＝1为例进行说明。Specifically, the K encoded bits are converted into modulation symbols of K1 sampling points. For the simplest ASK and BPSK modulation, K1=K. For modulation with additional coding (for example, Manchester coding, differential coding, etc.), K1 may not be equal to K. After modulation (encoding), the ASK symbol (first signal) generally has the value {a, 0}. For simplicity of description, a=1 is taken as an example for illustration; similarly, the BPSK symbol (first signal) generally has the value {a, 0}. Value {a,-a}, similarly, take a=1 as an example.
S102、所述发送设备对所述第一信号中的采样点进行重复操作，得到第二信号。S102. The sending device performs repeated operations on the sampling points in the first signal to obtain a second signal.
本步骤中，对于上述获得的{1,0}(ASK调制)样点或{1,-1}(BPSK调制)样点进行重复操作，使其样点数变为M1(第二信号)。以ASK调制为例，重复操作的具体方式为，将原有的样点1重复R1次，将原有的样点0重复R0次，在这里，R0和R1可以相等，也可以不相等。考虑一个具体示例，假设K＝K1＝3，调制后输出的ASK符号序列为[1,0,1]，另假设M1＝12,在R0和R1均等于4的情况下，重复后序列为[1,1,1,1,0,0,0,0,1,1,1,1](第二信号)。In this step, repeated operations are performed on the {1,0} (ASK modulation) samples or {1,-1} (BPSK modulation) samples obtained above, so that the number of samples becomes M1 (second signal). Taking ASK modulation as an example, the specific method of repeating operation is to repeat the original sample point 1 R1 times and the original sample point 0 to repeat R0 times. Here, R0 and R1 may be equal or not equal. Consider a specific example, assuming that K=K1=3, the ASK symbol sequence output after modulation is [1,0,1], and also assuming that M1=12, when R0 and R1 are both equal to 4, the sequence after repetition is [ 1,1,1,1,0,0,0,0,1,1,1,1] (second signal).
另外，在一种可能的实现中，发送设备可以根据K和M1的取值，假设R0＝R1，自行得到R0和R1的取值。In addition, in a possible implementation, the sending device can obtain the values of R0 and R1 by itself according to the values of K and M1, assuming R0=R1.
S103、所述发送设备对所述第二信号进行处理，生成正交频分复用OFDM符号。S103. The sending device processes the second signal to generate an orthogonal frequency division multiplexing OFDM symbol.
在得到上述第二信号后，发送设备对第二信号进行如下一个或多个处理操作：首先，发送设备对第二信号进行频域变换(例如，DFT或离散余弦变换(discrete cosine transform，DCT))，而后，发送设备将DFT后向量或符号集合进行(时频)资源映射；资源映射后，发送设备进行IFFT操作，而后添加CP，并将信号送至中射频等后续模块。After obtaining the above-mentioned second signal, the sending device performs one or more of the following processing operations on the second signal: first, the sending device performs frequency domain transform (for example, DFT or discrete cosine transform, DCT) on the second signal ), and then, the transmitting device performs (time-frequency) resource mapping on the vector or symbol set after DFT; after the resource mapping, the transmitting device performs IFFT operation, then adds CP, and sends the signal to subsequent modules such as intermediate radio frequency.
S104、所述发送设备向反射设备发送所述OFDM符号。S104. The sending device sends the OFDM symbol to the reflecting device.
相应地，反射设备接收发送设备发送的OFDM符号。Correspondingly, the reflection device receives the OFDM symbol sent by the sending device.
具体地，发送设备在生成发送给反射设备的OFDM符号后，向反射设备发送上述生成的OFDM符号。Specifically, after generating the OFDM symbol sent to the reflecting device, the sending device sends the generated OFDM symbol to the reflecting device.
反射设备接收上述发送设备发送的OFDM符号，即该OFDM符号是发送设备对第二信号进行处理后生成的，该第二信号是发送设备对第一信号中的采样点进行重复操作得到的，该第一信号是发送设备采用第一调制方式对编码后的比特进行调制得到的。The reflection device receives the OFDM symbol sent by the above-mentioned sending device, that is, the OFDM symbol is generated by the sending device after processing the second signal, and the second signal is obtained by repeating the sampling point in the first signal by the sending device. The first signal is obtained by modulating the encoded bits by the sending device using the first modulation method.
S105、所述反射设备检测所述OFDM符号对应的调制信号。S105. The reflection device detects a modulation signal corresponding to the OFDM symbol.
本实施例中，不对反射设备的设计进行限制，但考虑到成本，反射设备一般不具有离散傅氏变换的快速算法(fast fourier transformation，FFT)、逆离散傅里叶变换(inverse discrete fourier transformation，IDFT)等复杂的信号处理模块。因此，虽然发送设备是基于OFDM/DFTs波形发送的，但反射设备一般通过能量检测、包络检测、相位反转检测等方法来检测发送设备发送的上述OFDM符号对应的ASK或PSK调制信号，而不对反射设备的内部结构进行调整。In this embodiment, the design of the reflection device is not limited, but considering the cost, the reflection device generally does not have fast fourier transformation (FFT) and inverse discrete fourier transformation, IDFT) and other complex signal processing modules. Therefore, although the transmitting device transmits based on the OFDM/DFTs waveform, the reflection device generally detects the ASK or PSK modulated signal corresponding to the OFDM symbol sent by the transmitting device through methods such as energy detection, envelope detection, and phase inversion detection. No adjustments are made to the internal structure of the reflection device.
具体地，例如，对于ASK信号，反射设备检测一段时间的信号能量，若检测到的能量大于某个门限，则判断检测到的信号为高电平；否则，判断检测到的信号为低电平。Specifically, for example, for ASK signals, the reflection device detects the signal energy for a period of time. If the detected energy is greater than a certain threshold, the detected signal is judged to be a high level; otherwise, the detected signal is judged to be a low level .
可以看出，发送设备给反射设备发送信号时，相比发送设备给常规通信设备发送信号，处理流程类似，都要对编码后的比特进行调制、频域变换、资源映射、IFFT操作、添加 CP、中射频处理；所不同的在于，调制方式不同，发送设备在生成发送给反射设备的符号时，还要对调制后的信号进行重复操作等。因此，发送设备尽可能复用了已有的给常规通信设备发送信号的模块及流程，无需做大的结构及流程的改变。It can be seen that when the sending device sends a signal to the reflection device, compared to the sending device sending a signal to a conventional communication device, the processing flow is similar. The encoded bits must be modulated, frequency domain transformed, resource mapping, IFFT operation, and CP added. , Intermediate radio frequency processing; the difference is that the modulation method is different, when the transmitting device generates the symbol sent to the reflecting device, it also needs to perform repeated operations on the modulated signal. Therefore, the sending device reuses the existing modules and procedures for sending signals to conventional communication devices as much as possible, without major structural and procedure changes.
根据本申请实施例提供的一种信号发送及接收方法，发送设备向发射设备和常规通信设备发送信号时，可以采用类似的处理流程，发送设备尽可能复用已有的发送模块及流程，从而无需对发送设备的结构做大的改变，降低了发送设备的成本。According to a signal sending and receiving method provided by an embodiment of the present application, when a sending device sends a signal to a sending device and a conventional communication device, a similar processing procedure can be adopted, and the sending device reuses the existing sending modules and procedures as much as possible, thereby There is no need to make major changes to the structure of the sending device, which reduces the cost of the sending device.
图4为本申请实施例提供的又一种信号发送及接收方法的流程示意图，示例性地，该方法可包括以下步骤：FIG. 4 is a schematic flowchart of another signal sending and receiving method provided by an embodiment of the application. Illustratively, the method may include the following steps:
S201、发送设备向反射设备发送第一指示，其中，所述第一指示用于指示所述反射设备采用第一参数接收所述OFDM符号。S201. The sending device sends a first instruction to the reflection device, where the first instruction is used to instruct the reflection device to use the first parameter to receive the OFDM symbol.
为了使得反射设备的接收机能够顺利检测到OFDM符号，反射设备可以获得第一参数，用于配置反射设备的接收机。其中，第一参数包括如下至少一个参数：OFDM符号承载的比特数K，频域变换所要求的采样点的个数M，OFDM符号持续时长，子载波间隔，或者CP类型。In order to enable the receiver of the reflection device to successfully detect the OFDM symbol, the reflection device can obtain the first parameter for configuring the receiver of the reflection device. The first parameter includes at least one of the following parameters: the number of bits K carried by the OFDM symbol, the number M of sampling points required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the CP type.
可以理解的是，当发送设备是终端设备时，可以是终端设备接收网络设备发送的第一指示，然后终端设备转发第一指示给反射设备；也可以是网络设备直接发送给反射设备的。当发送设备是网络设备时，可以是网络设备将第一指示发送给反射设备的。It is understandable that when the sending device is a terminal device, the terminal device may receive the first instruction sent by the network device, and then the terminal device forwards the first instruction to the reflection device; it may also be directly sent by the network device to the reflection device. When the sending device is a network device, the network device may send the first instruction to the reflection device.
S202、发送设备采用第一调制方式对编码后的比特进行调制，得到第一信号。S202. The sending device modulates the encoded bits by using the first modulation mode to obtain a first signal.
该步骤的具体实现可参考图3所示的实施例的步骤S101。For the specific implementation of this step, refer to step S101 of the embodiment shown in FIG. 3.
如图5所示的本实施例提供的一种发送设备的发射结构示意图，发送设备对K个编码后的比特进行调制，得到第一信号。As shown in FIG. 5, a schematic diagram of the transmitting structure of a transmitting device provided in this embodiment is shown. The transmitting device modulates K encoded bits to obtain the first signal.
S203、所述发送设备对至少一个第一采样点重复R0次，以及对至少一个第二采样点重复R1次，得到第二信号。S203. The sending device repeats R0 times for at least one first sampling point and repeats R1 times for at least one second sampling point to obtain a second signal.
如图5所示，对编码后的比特进行调制后，继续对调制后的符号进行预处理。预处理操作包括重复操作，进一步地，还可以包括上采样操作。As shown in Figure 5, after modulating the coded bits, continue to preprocess the modulated symbols. The preprocessing operation includes repeated operations, and further, may also include up-sampling operations.
其中，关于步骤S203中的重复操作的具体实现可参考图3所示的实施例的步骤S102。For the specific implementation of the repeated operation in step S203, refer to step S102 of the embodiment shown in FIG. 3.
S204、所述发送设备对所述第二信号进行上采样操作。S204. The sending device performs an upsampling operation on the second signal.
具体地，如图6所示，为图5所示的发送设备的发射结构的局部示意图，图5中所示的预处理操作可以包括重复和上采样操作。其中，上采样操作是可选的操作。如图6所示，对重复后长度为M1的样点进行上采样操作，使其样点数变为M。其中，M为频域变换所要求的点数。其中，上采样因子为频域变换所要求的采样点的个数与所述R0和R1之和的商，即上采样因子为M/M1(假设M/M1为整数)。若M/M1不为整数，则对其进行向上取整或向下取整。在这种情况下，上采后的序列长度可能不等于M，应通过头部或尾部填充或截断的方法使其长度为M。Specifically, as shown in FIG. 6, which is a partial schematic diagram of the transmission structure of the transmitting device shown in FIG. 5, the preprocessing operation shown in FIG. 5 may include repetition and up-sampling operations. Among them, the upsampling operation is optional. As shown in Figure 6, the up-sampling operation is performed on the samples with the length of M1 after repetition, so that the number of samples becomes M. Among them, M is the number of points required for frequency domain transformation. Wherein, the upsampling factor is the quotient of the number of sampling points required by the frequency domain transformation and the sum of R0 and R1, that is, the upsampling factor is M/M1 (assuming M/M1 is an integer). If M/M1 is not an integer, it will be rounded up or down. In this case, the length of the sequence after uptake may not be equal to M, and the length should be M by filling or truncating the head or tail.
下面给出一个上采样的示例，假设原始序列为[x1,x2,x3]，则上采两倍的序列为[x1,0,x2,0,x3,0]。An example of upsampling is given below. Assuming that the original sequence is [x1,x2,x3], the up-sampled sequence is [x1,0,x2,0,x3,0].
进一步地，还可以对M个样点进行时域(循环)滤波操作。应注意，时域滤波器的长 度小于或等于M，但本申请不对滤波器的参数加以限制。可选地，发送设备还可以对时域信号进行循环移位操作，例如，上采样后的序列为[x1,0，x2,,0，x3,,0，x4，0],则循环移位-1得到的值为[0，x2,0，x3,0，x4，0，x1]。其中，循环移位可以是正数，也可以是负数。Further, the time domain (cyclic) filtering operation can also be performed on the M samples. It should be noted that the length of the time-domain filter is less than or equal to M, but this application does not limit the parameters of the filter. Optionally, the sending device can also perform a cyclic shift operation on the time-domain signal. For example, if the up-sampled sequence is [x1,0, x2,, 0, x3,, 0, x4, 0], then the cyclic shift The value obtained by -1 is [0, x2, 0, x3, 0, x4, 0, x1]. Among them, the cyclic shift can be positive or negative.
另外，上采样操作之后，还可以包括时域滤波操作。其中，在一个实现中，时域滤波器可以是一个单抽头滤波器，单抽头滤波器可实现M个样点的时域循环移位。在另一个实现中，时域滤波器也可以是一个多抽头滤波器，实现样点的成形，或者成形和移位的功能。本申请不对滤波器的参数进行限制。In addition, after the up-sampling operation, a time-domain filtering operation may also be included. Among them, in an implementation, the time-domain filter may be a single-tap filter, and the single-tap filter may implement a time-domain cyclic shift of M samples. In another implementation, the time-domain filter can also be a multi-tap filter to achieve sample point shaping, or shaping and shifting functions. This application does not limit the parameters of the filter.
S205、所述发送设备对所述第二信号进行频域变换，得到频域向量元素。S205. The sending device performs frequency domain transformation on the second signal to obtain frequency domain vector elements.
本步骤是对上述经过预处理后得到的第二信号进行频域变换，得到频域向量元素。其中，频域变换包括DFT或DCT。如图5所示，发送设备对预处理之后的第二信号进行DFT操作。频域变换的尺寸为M个采样点。This step is to perform frequency domain transformation on the second signal obtained after preprocessing above to obtain frequency domain vector elements. Among them, the frequency domain transform includes DFT or DCT. As shown in Fig. 5, the transmitting device performs DFT operation on the preprocessed second signal. The size of the frequency domain transformation is M sampling points.
需要说明的是，如果发送的是DFT-s-OFDM波形，则可以执行上述频域变换；如果发送的是OFDM波形，则可以不执行频域变换，即该步骤是可选的。It should be noted that if the DFT-s-OFDM waveform is transmitted, the above frequency domain transformation can be performed; if the OFDM waveform is transmitted, the frequency domain transformation may not be performed, that is, this step is optional.
S206、所述发送设备对所述频域向量元素进行扩展，得到扩展后的频域向量元素。S206. The sending device expands the frequency domain vector element to obtain an expanded frequency domain vector element.
具体地，在FDSS前，发送设备还可以进行频域循环扩展操作，即对DFT后得到的频域向量元素进行扩展，得到扩展后的频域向量元素。仍参考上述示例，则是将上述DFT后得到的M个采样点扩展至M 2个采样点。 Specifically, before the FDSS, the sending device may also perform a frequency domain cyclic extension operation, that is, expand the frequency domain vector element obtained after DFT to obtain the expanded frequency domain vector element. Still referring to the above example, the M sampling points obtained after the above DFT are expanded to M 2 sampling points.
可选的，在进行上述上采样操作后，也可以不执行S206，即该步骤是可选的。Optionally, after performing the above-mentioned up-sampling operation, S206 may not be performed, that is, this step is optional.
S207、所述发送设备将频域频谱成形FDSS滤波器参数与所述扩展后的频域向量元素相乘，得到OFDM符号。S207. The sending device multiplies the frequency domain spectrum shaping FDSS filter parameter by the expanded frequency domain vector element to obtain an OFDM symbol.
如图7所示的FDSS的示意图，如果不执行S206，即在DFT后，输出了M个样点，将这M个样点依次与频域滤波器的权值w(0)～w(M-1)相乘，得到加权后的M个频域样点。在另外的实现中(图中未示出)，如果在DFT后，还对M个采样点进行了频域循环扩展操作(步骤S206)，则本步骤中，将M2个样点与频域滤波器的权值w(0)～w(M 2-1)相乘，得到加权后的M2个频域样点。其中，频域滤波器的权值有多种选择，例如RC滤波器，RRC滤波器，Kaiser滤波器等，本申请不对滤波器加以具体的限制。由于上述滤波在频域进行，w(k)通过对上述滤波器的频域响应进行采样得到。此外，这M个样点将在资源映射时插零补充至N个样点，而后进行IFFT变换。 As shown in the schematic diagram of FDSS as shown in Figure 7, if S206 is not executed, that is, after DFT, M samples are output, and these M samples are combined with the weights of the frequency domain filter w(0)～w(M -1) Multiply to obtain weighted M frequency domain samples. In another implementation (not shown in the figure), if after DFT, the frequency domain cyclic extension operation is also performed on the M sampling points (step S206), then in this step, the M2 samples are filtered with the frequency domain. The weights of the filter w(0)～w(M 2 -1) are multiplied to obtain the weighted M2 frequency domain samples. Among them, there are multiple choices for the weight of the frequency domain filter, such as RC filter, RRC filter, Kaiser filter, etc. The application does not impose specific restrictions on the filter. Since the above filtering is performed in the frequency domain, w(k) is obtained by sampling the frequency domain response of the above filter. In addition, these M samples will be added to N samples by inserting zeros during resource mapping, and then perform IFFT transformation.
S208、所述发送设备向反射设备发送所述OFDM符号。S208: The sending device sends the OFDM symbol to the reflecting device.
相应地，反射设备采用第一参数接收发送设备发送的OFDM符号。Correspondingly, the reflection device uses the first parameter to receive the OFDM symbol sent by the sending device.
在步骤S201中，反射设备接收到了第一指示，则在本步骤中，反射设备可以采用上述第一指示中包括的第一参数，配置反射设备的接收机，从而可靠地接收到发送设备发送的OFDM符号。In step S201, the reflection device receives the first instruction. In this step, the reflection device can use the first parameter included in the first instruction to configure the receiver of the reflection device, so as to reliably receive the signal sent by the sending device. OFDM symbol.
S209、所述反射设备检测所述OFDM符号。S209. The reflection device detects the OFDM symbol.
本实施例中，不对反射设备的设计进行限制，但考虑到成本，反射设备一般不具有FFT、IDFT等复杂的信号处理模块。因此，虽然发送设备是基于OFDM/DFTs波形发送的，但反射设备一般通过能量检测、包络检测、相位反转检测等方法来检测发送设备发送的OFDM 符号，而不对反射设备的内部结构进行调整。In this embodiment, the design of the reflection device is not limited, but considering the cost, the reflection device generally does not have complex signal processing modules such as FFT and IDFT. Therefore, although the transmitting device transmits based on the OFDM/DFTs waveform, the reflection device generally detects the OFDM symbols sent by the transmitting device through methods such as energy detection, envelope detection, and phase inversion detection, without adjusting the internal structure of the reflection device .
具体地，例如，对于ASK信号，反射设备检测一段时间的信号能量，若检测到的能量大于某个门限，则判断检测到的信号为高电平；否则，判断检测到的信号为低电平。Specifically, for example, for ASK signals, the reflection device detects the signal energy for a period of time. If the detected energy is greater than a certain threshold, the detected signal is judged to be a high level; otherwise, the detected signal is judged to be a low level .
如图8所示的发送设备给常规通信设备发送信号以及给反射设备发送信号的发射机结构对比示意图，由图8可见，发送设备给反射设备发送信号时，相比发送设备给常规通信设备发送信号，处理流程类似，都要对编码后的比特进行调制、频域变换、资源映射、IFFT操作、添加CP、中射频处理；所不同的在于，调制方式不同，发送设备在生成发送给反射设备的符号时，还要对调制后的信号进行预处理操作，以及在DFT后，还可能对信号进行频域处理等。因此，发送设备尽可能复用了已有的给常规通信设备发送信号的模块及流程，无需做大的结构及流程的改变。As shown in FIG. 8, the sending device sends a signal to a conventional communication device and a transmitter structure comparison diagram for sending a signal to the reflection device. It can be seen from FIG. 8 that when the sending device sends a signal to the reflection device, compared to the sending device sending a signal to the conventional communication device The signal and processing procedures are similar, and the encoded bits must be modulated, frequency domain transformed, resource mapping, IFFT operation, CP added, and RF processing performed; the difference is that the modulation method is different, and the sending device is generating and sending to the reflecting device In the case of the symbol, the modulated signal must be preprocessed, and after DFT, the signal may also be processed in the frequency domain. Therefore, the sending device reuses the existing modules and procedures for sending signals to conventional communication devices as much as possible, without major structural and procedure changes.
假设在一个OFDM符号的持续时间内，发送设备需要发送5个比特。理想情况下，发送设备需要发送如图9a所示的ASK调制符号。在图9a中，ASK映射采用了曼彻斯特编码，即比特0映射为ASK的0和1，比特1映射为1和0。Assume that within the duration of one OFDM symbol, the transmitting device needs to transmit 5 bits. Ideally, the sending device needs to send ASK modulation symbols as shown in Figure 9a. In Figure 9a, the ASK mapping uses Manchester coding, that is, bit 0 is mapped to ASK 0 and 1, and bit 1 is mapped to 1 and 0.
通过本申请所给出的方案，可得到如图9b所示的发送信号包络。Through the solution provided in this application, the transmitted signal envelope as shown in FIG. 9b can be obtained.
可以看到，通过本实施例的重复、上采样、频域变换、频域循环扩展、FDSS等操作，使得本申请方案得到的信号包络与理想信号包络较为接近。并且由于本申请方案在DFTs发送设备的框架下进行处理，所生成信号不会对其余接收机造成额外的带外干扰。It can be seen that through operations such as repetition, upsampling, frequency domain transformation, frequency domain cyclic extension, and FDSS in this embodiment, the signal envelope obtained by the solution of the present application is closer to the ideal signal envelope. And since the solution of this application is processed under the framework of the DFTs transmitting device, the generated signal will not cause additional out-of-band interference to other receivers.
根据本申请实施例提供的一种信号发送及接收方法，发送设备向发射设备和常规通信设备发送信号时，可以采用类似的处理流程，发送设备尽可能复用已有的发送模块及流程，从而无需对发送设备的结构做大的改变，降低了发送设备的成本。According to a signal sending and receiving method provided by an embodiment of the present application, when a sending device sends a signal to a sending device and a conventional communication device, a similar processing procedure can be adopted, and the sending device reuses the existing sending modules and procedures as much as possible, thereby There is no need to make major changes to the structure of the sending device, which reduces the cost of the sending device.
图10为本申请实施例提供的又一种信号的发送及接收方法的流程示意图，示例性地，该方法可以包括以下步骤：FIG. 10 is a schematic flowchart of another signal sending and receiving method provided by an embodiment of this application. Illustratively, the method may include the following steps:
S301、发送设备根据编码后的比特与元素集合的映射关系，获取所述编码后的比特对应的元素集合，作为第一信号。S301. The sending device obtains the element set corresponding to the encoded bit according to the mapping relationship between the encoded bit and the element set, as a first signal.
本实施例与上述图3、图4所示实施例不同的是，本实施例采用的调制和重复方式不同。本实施例中，如图11所示的又一种发送设备的发射结构的局部示意图，在本实施例中，上述调制和预处理操作可以联合进行，即可以将调制和重复两个模块合并为一个新的调制模块，称为X调制模块。X调制模块输出的信号为调制、额外编码、重复操作后的M1个采样点，其中，额外编码和重复操作可以同时存在，也可以只存在额外编码或重复操作。具体地，该X调制模块根据编码后的比特与元素集合的映射关系，获取所述编码后的比特对应的元素集合，作为第一信号。The difference between this embodiment and the above-mentioned embodiments shown in FIG. 3 and FIG. 4 is that the modulation and repetition modes used in this embodiment are different. In this embodiment, as shown in FIG. 11, another partial schematic diagram of the transmission structure of the transmitting device is shown. In this embodiment, the above-mentioned modulation and preprocessing operations can be performed jointly, that is, the two modules of modulation and repetition can be combined into A new modulation module is called X modulation module. The signal output by the X modulation module is M1 sampling points after modulation, additional coding, and repeated operations. The additional coding and repeated operations can exist at the same time, or there can be only additional coding or repeated operations. Specifically, the X modulation module obtains the element set corresponding to the coded bit as the first signal according to the mapping relationship between the coded bit and the element set.
以PIE编码为例，比特0和比特1所输出波形可以具有不同的脉冲长度。具体地，对于PIE编码，存在两种元素集合：比特0对应的元素集合和比特1对应的元素集合。其中，比特0对应的元素集合包括：p0个1和和q0个0，即
Figure PCTCN2020091622-appb-000001
其中，p0和q0分别表示在发送比特0时，1和0的个数；比特1对应的元素集合包括：p1个1和和q1个0，即
Figure PCTCN2020091622-appb-000002
其中，p1和q1分别表示在发送比特1时，1和0的个数。 Taking PIE encoding as an example, the output waveforms of bit 0 and bit 1 can have different pulse lengths. Specifically, for PIE encoding, there are two element sets: the element set corresponding to bit 0 and the element set corresponding to bit 1. Among them, the set of elements corresponding to bit 0 includes: p0 1s and q0 0s, namely
Figure PCTCN2020091622-appb-000001
Among them, p0 and q0 respectively represent the number of 1 and 0 when bit 0 is sent; the set of elements corresponding to bit 1 includes: p1 1 and q1 0, namely
Figure PCTCN2020091622-appb-000002
Among them, p1 and q1 respectively represent the number of 1 and 0 when bit 1 is sent.
本实施例中，编码后的比特包括至少一个比特0、和/或至少一个比特1。则发送设备根据编码后的比特与元素集合的映射关系，可以获取与编码后的比特对应的元素集合，作为第一信号。即分别将编码后的比特中的一个或多个比特0，映射为上述比特0对应的元素集合；分别将编码后的比特中的一个或多个比特1，映射为上述比特1对应的元素集合；最后得到编码后的比特对应的元素集合。In this embodiment, the encoded bits include at least one bit 0 and/or at least one bit 1. Then, the sending device may obtain the element set corresponding to the encoded bit as the first signal according to the mapping relationship between the encoded bit and the element set. That is, respectively map one or more bits 0 in the encoded bits to the element set corresponding to the above bit 0; respectively map one or more bits 1 in the encoded bits to the element set corresponding to the above bit 1 ; Finally, the set of elements corresponding to the encoded bits is obtained.
具体地，在一个示例中，假设编码后的比特流为[0,1]。Specifically, in an example, it is assumed that the encoded bit stream is [0, 1].
如果采用ASK调制，可得到调制后的序列为[0,1]，然后重复4次，得到[00001111]。If ASK modulation is used, the modulated sequence can be obtained as [0,1], and then repeat 4 times to obtain [00001111].
在本实施例中，如果采用PIE编码，假设编码后的比特和元素集合的映射关系有：In this embodiment, if PIE encoding is used, it is assumed that the mapping relationship between the encoded bits and the element set is:
0：1100；1:1110；0: 1100; 1: 1110;
则得到输出的元素集合为[11001110]。Then the output element set is [11001110].
在本实施例中，如果采用曼彻斯特编码，假设编码后的比特和元素集合的映射关系为：In this embodiment, if Manchester encoding is adopted, it is assumed that the mapping relationship between the encoded bits and the element set is:
0：10；1:01；0: 10; 1:01;
则得到编码后的元素集合为[1001]，可重复两次，得到[11000011]。Then the encoded element set is [1001], which can be repeated twice to obtain [11000011].
可以理解的是，在上述比特0对应的元素集合和比特1对应的元素集合中，有以下几种可能的实现：It is understandable that, in the element set corresponding to bit 0 and the element set corresponding to bit 1, there are the following possible implementations:
在一个实现中，p0和p1不相等，q0和q1相等；In one implementation, p0 and p1 are not equal, and q0 and q1 are equal;
在又一个实现中，p0和p1相等，q0和q1不相等；In another implementation, p0 and p1 are equal, and q0 and q1 are not equal;
在又一个实现中，p0和p1不相等，q0和q1不相等；In another implementation, p0 and p1 are not equal, and q0 and q1 are not equal;
在又一个实现中，p0和p1不相等，p0+q0和p1+q1相等；In another implementation, p0 and p1 are not equal, and p0+q0 and p1+q1 are equal;
在又一个实现中，q0和q1不相等，p0+q0和p1+q1相等。In yet another implementation, q0 and q1 are not equal, and p0+q0 and p1+q1 are equal.
S302、所述发送设备对所述第一信号进行处理，生成OFDM符号。S302. The sending device processes the first signal to generate an OFDM symbol.
发送设备获取到第一信号后，可采用与上述图3、图4实施例类似的后续操作，即进行上采样操作、时域滤波、频域变换、频域处理等。After the sending device obtains the first signal, subsequent operations similar to those in the above-mentioned embodiments of FIG. 3 and FIG. 4 may be adopted, that is, up-sampling operation, time-domain filtering, frequency-domain transformation, and frequency-domain processing are performed.
具体地，S302包括：所述发送设备对所述第一信号进行上采样操作，得到第二信号，其中，上采样因子为所述频域变换所要求的采样点的个数与所述第一信号的采样点的个数的商。Specifically, S302 includes: the transmitting device performs an up-sampling operation on the first signal to obtain a second signal, where the up-sampling factor is the number of sampling points required by the frequency domain transform and the first signal. The quotient of the number of sampling points of the signal.
该步骤的具体实现可参考图4所示实施例的步骤S204。For the specific implementation of this step, refer to step S204 of the embodiment shown in FIG. 4.
进一步地，S302还包括：所述发送设备对所述第一信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；所述发送设备对所述频域向量元素进行扩展，得到所述第一信号的扩展后的频域向量元素；以及所述发送设备将频域频谱成形FDSS滤波器参数与所述第一信号的扩展后的频域向量元素相乘，得到所述OFDM符号。Further, S302 further includes: the sending device performs frequency domain transformation on the first signal to obtain a frequency domain vector element, and the size of the frequency domain transformation is a first bandwidth; Element is expanded to obtain the expanded frequency domain vector element of the first signal; and the transmitting device multiplies the frequency domain spectrum shaping FDSS filter parameter by the expanded frequency domain vector element of the first signal, Obtain the OFDM symbol.
或者，S302还包括：所述发送设备对所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；以及所述发送设备将频域频谱成形FDSS滤波器参数与所述第二信号的频域向量元素相乘，得到所述OFDM符号。Alternatively, S302 further includes: the sending device performs frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and the sending device shapes the frequency domain spectrum into FDSS The filter parameter is multiplied by the frequency domain vector element of the second signal to obtain the OFDM symbol.
上述步骤的具体实现可参考图4所示实施例的步骤S205～S207。For the specific implementation of the above steps, refer to steps S205 to S207 of the embodiment shown in FIG. 4.
S303、所述发送设备向反射设备发送所述OFDM符号。S303. The sending device sends the OFDM symbol to a reflection device.
相应地，反射设备接收发送设备发送的OFDM符号。Correspondingly, the reflection device receives the OFDM symbol sent by the sending device.
具体地，反射设备可以采用第一参数接收发送设备发送的上述OFDM符号，其中，第 一参数包括以下至少一个参数：所述OFDM符号中包括的比特数K、频域变换所要求的采样点的个数M，OFDM符号持续时长，子载波间隔，或者CP类型。Specifically, the reflection device may use the first parameter to receive the foregoing OFDM symbol sent by the sending device, where the first parameter includes at least one of the following parameters: the number of bits K included in the OFDM symbol, the number of sampling points required by the frequency domain transformation Number M, OFDM symbol duration, subcarrier spacing, or CP type.
该步骤的具体实现可参考图3所示实施例的步骤S104或图4所示实施例的步骤S208。For the specific implementation of this step, refer to step S104 in the embodiment shown in FIG. 3 or step S208 in the embodiment shown in FIG. 4.
S304、所述反射设备检测所述OFDM符号。S304. The reflection device detects the OFDM symbol.
该步骤的具体实现可参考图3所示实施例的步骤S105或图4所示实施例的步骤S209。For the specific implementation of this step, refer to step S105 in the embodiment shown in FIG. 3 or step S209 in the embodiment shown in FIG. 4.
根据本申请实施例提供的一种信号发送及接收方法，发送设备根据编码后的比特与元素集合的映射关系，获取与编码后的比特对应的向量，作为第一信号，发送设备对第一信号处理，生成并发送OFDM符号，反射设备以第一参数接收该OFDM符号，并检测OFDM符号对应的调制信号，在反射通信与蜂窝通信融合的场景下，无需对发送设备的结构做大的改变，可以兼容向反射设备和常规的通信设备发送信号，降低了发送设备的成本。According to a signal sending and receiving method provided by an embodiment of the application, the sending device obtains a vector corresponding to the encoded bit according to the mapping relationship between the encoded bit and the element set, as the first signal, and the sending device responds to the first signal Process, generate and send the OFDM symbol, the reflection device receives the OFDM symbol with the first parameter, and detects the modulated signal corresponding to the OFDM symbol. In the scenario where reflection communication and cellular communication merge, there is no need to make major changes to the structure of the transmission device. It can be compatible to send signals to reflection equipment and conventional communication equipment, reducing the cost of the sending equipment.
上述详细阐述了本申请实施例的方法，下面提供了本申请实施例的装置。The foregoing describes the method of the embodiment of the present application in detail, and the device of the embodiment of the present application is provided below.
基于上述实施例中的信号发送方法的同一构思，如图12所示，本申请实施例还提供一种通信装置1000，该通信装置可用于图3、图4所示的信号发送方法中。该通信装置1000包括；处理器11和收发器12；示例性地：Based on the same concept of the signal sending method in the foregoing embodiment, as shown in FIG. 12, an embodiment of the present application further provides a communication device 1000, which can be used in the signal sending methods shown in FIG. 3 and FIG. The communication device 1000 includes; a processor 11 and a transceiver 12; exemplarily:
处理器11，用于采用第一调制方式对编码后的比特进行调制，得到第一信号；The processor 11 is configured to use the first modulation mode to modulate the encoded bits to obtain the first signal;
所述处理器11，还用于对所述第一信号中的采样点进行重复操作，得到第二信号；The processor 11 is also configured to perform repeated operations on sampling points in the first signal to obtain a second signal;
所述处理器11，还用于对所述第二信号进行处理，生成正交频分复用OFDM符号；The processor 11 is further configured to process the second signal to generate orthogonal frequency division multiplexing OFDM symbols;
收发器12，用于向反射设备发送所述OFDM符号。The transceiver 12 is configured to send the OFDM symbol to the reflection device.
在一个实现中，所述第一信号中的采样点包括至少一个第一采样点、以及至少一个第二采样点；所述处理器11，用于对所述至少一个第一采样点重复R0次，以及对所述至少一个第二采样点重复R1次，得到所述第二信号，所述第二信号包括所述R0个第一采样点和所述R1个第二采样点。In an implementation, the sampling points in the first signal include at least one first sampling point and at least one second sampling point; the processor 11 is configured to repeat R0 times on the at least one first sampling point , And repeating R1 times for the at least one second sampling point to obtain the second signal, where the second signal includes the R0 first sampling points and the R1 second sampling points.
在又一个实现中，所述处理器11，用于对所述第二信号进行上采样操作，其中，上采样因子为频域变换所要求的采样点的个数与所述R0和R1之和的商。In yet another implementation, the processor 11 is configured to perform an up-sampling operation on the second signal, where the up-sampling factor is the number of sampling points required for frequency domain transformation and the sum of R0 and R1 Quotient.
在又一个实现中，所述处理器11，用于对所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；所述处理器11，还用于对所述频域向量元素进行扩展，得到扩展后的频域向量元素；以及所述处理器11，还用于将频域频谱成形FDSS滤波器参数与所述扩展后的频域向量元素相乘，得到所述OFDM符号。In another implementation, the processor 11 is configured to perform frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; the processor 11 further Is used to expand the frequency domain vector element to obtain an expanded frequency domain vector element; and the processor 11 is also used to shape the frequency domain spectrum FDSS filter parameter with the expanded frequency domain vector element Multiply to obtain the OFDM symbol.
在又一个实现中，所述处理器11用于对进行上采样操作后的所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；以及所述处理器11，还用于将频域频谱成形FDSS滤波器参数与所述频域向量元素相乘，得到所述OFDM符号。In another implementation, the processor 11 is configured to perform frequency domain transformation on the second signal after the upsampling operation to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and The processor 11 is further configured to multiply the frequency domain spectrum shaping FDSS filter parameter by the frequency domain vector element to obtain the OFDM symbol.
在又一个实现中，所述收发器12，还用于向所述反射设备发送第一指示，其中，所述第一指示用于指示所述反射设备采用第一参数接收所述OFDM符号；其中，所述第一参数包括如下至少一个参数：所述OFDM符号承载的比特数K，频域变换所要求的采样点的个数M，OFDM符号持续时长，子载波间隔，或者循环前缀类型。In yet another implementation, the transceiver 12 is further configured to send a first instruction to the reflection device, where the first instruction is used to instruct the reflection device to use the first parameter to receive the OFDM symbol; wherein The first parameter includes at least one of the following parameters: the number of bits K carried by the OFDM symbol, the number M of sampling points required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
有关上述处理器11和收发器12更详细的描述可以参考上述图3、图4所述的信号发送方法中发送设备的相关描述得到，这里不加赘述。For a more detailed description of the foregoing processor 11 and transceiver 12, reference may be made to the relevant description of the sending device in the signal sending method described in FIG. 3 and FIG. 4, which is not repeated here.
需要说明的是，上述收发器可以是集成的、具有收发功能的器件，也可以是由独立的、分别具有接收功能的接收器和具有发送功能的发射器组成，逻辑上称为“收发器”。It should be noted that the above transceiver can be an integrated device with a transceiver function, or it can be composed of an independent receiver with a receiving function and a transmitter with a sending function, logically called a "transceiver" .
在另外的实施例中，该通信装置也可以包括处理单元和收发单元，该处理单元用于执行图3所示实施例中S101～S103的操作；以及该收发单元用于执行图3所示实施例中S104中发送设备的操作。进一步地，该处理单元用于执行图4所示实施例中S202～S207的操作；以及该收发单元用于执行图4所示实施例中S201和S208中发送设备的操作。有关上述处理单元和收发单元更详细的描述可以参考上述图3、图4所述的信号发送方法中发送设备的相关描述得到，这里不加赘述。In another embodiment, the communication device may also include a processing unit and a transceiving unit. The processing unit is used to perform operations from S101 to S103 in the embodiment shown in FIG. 3; and the transceiving unit is used to perform the implementation shown in FIG. In the example, the operation of the sending device in S104. Further, the processing unit is used to perform operations from S202 to S207 in the embodiment shown in FIG. 4; and the transceiver unit is used to perform operations of the sending device in S201 and S208 in the embodiment shown in FIG. 4. For a more detailed description of the foregoing processing unit and transceiver unit, reference may be made to the relevant description of the sending device in the signal sending method described in FIG. 3 and FIG. 4, which will not be repeated here.
根据本申请实施例提供的一种通信装置，在反射通信与蜂窝通信融合的场景下，无需对通信装置的结构做大的改变，可以兼容向反射设备和常规的通信设备发送信号，降低了通信装置的成本。According to a communication device provided by an embodiment of the present application, in a scenario where reflection communication and cellular communication are fused, there is no need to make major changes to the structure of the communication device, and it can be compatible with sending signals to reflection devices and conventional communication devices, reducing communication The cost of the device.
基于上述实施例中的信号发送方法的同一构思，如图13所示，本申请实施例还提供一种通信装置2000，该通信装置可应用于上述图12所述的信号发送方法中。该通信装置2000包括处理器21和收发器22；示例性地：Based on the same concept of the signal sending method in the foregoing embodiment, as shown in FIG. 13, an embodiment of the present application further provides a communication device 2000, which can be applied to the signal sending method described in FIG. 12. The communication device 2000 includes a processor 21 and a transceiver 22; exemplary:
处理器21，用于根据编码后的比特与元素集合的映射关系，获取所述编码后的比特对应的元素集合，作为第一信号，其中，所述编码后的比特包括至少一个比特0、和/或至少一个比特1；所述比特0对应的元素集合包括：p0个1和和q0个0；所述比特1对应的元素集合包括：p1个1和和q1个0；所述处理器21，还用于对所述第一信号进行处理，生成正交频分复用OFDM符号；以及收发器22，用于向反射设备发送所述OFDM符号。The processor 21 is configured to obtain the element set corresponding to the coded bit as a first signal according to the mapping relationship between the coded bit and the element set, where the coded bit includes at least one bit 0, and / Or at least one bit 1; the set of elements corresponding to bit 0 includes: p0 1s and q0 0s; the set of elements corresponding to bit 1 includes p1 1s and q1 0s; the processor 21 , Is also used to process the first signal to generate Orthogonal Frequency Division Multiplexing OFDM symbols; and the transceiver 22 is used to send the OFDM symbols to the reflection device.
在一个实现中，p0和p1不相等，q0和q1相等；或者p0和p1相等，q0和q1不相等；或者p0和p1不相等，q0和q1不相等；或者p0和p1不相等，p0和q0之和与p1和q1之和相等；或者q0和q1不相等，p0和q0之和与p1和q1之和相等。In one implementation, p0 and p1 are not equal, q0 and q1 are equal; or p0 and p1 are equal, q0 and q1 are not equal; or p0 and p1 are not equal, q0 and q1 are not equal; or p0 and p1 are not equal, p0 and The sum of q0 is equal to the sum of p1 and q1; or q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
在又一个实现中，所述处理器21，用于对所述第一信号进行上采样操作，得到第二信号，其中，上采样因子为所述频域变换所要求的采样点的个数与所述第一信号的采样点的个数的商。In another implementation, the processor 21 is configured to perform an up-sampling operation on the first signal to obtain a second signal, wherein the up-sampling factor is the number of sampling points required by the frequency domain transformation and The quotient of the number of sampling points of the first signal.
在又一个实现中，所述处理器21，用于对所述第一信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；所述处理器21，还用于对所述频域向量元素进行扩展，得到所述第一信号的扩展后的频域向量元素；以及所述处理器21，还用于将频域频谱成形FDSS滤波器参数与所述第一信号的扩展后的频域向量元素相乘，得到所述OFDM符号。In another implementation, the processor 21 is configured to perform frequency domain transformation on the first signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; the processor 21 further The frequency domain vector element is used to expand the frequency domain vector element to obtain the expanded frequency domain vector element of the first signal; and the processor 21 is further configured to compare the frequency domain spectrum shaping FDSS filter parameter with the first signal. Multiplying the frequency domain vector elements of a signal to obtain the OFDM symbol.
在又一个实现中，所述处理器21，用于对所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；以及所述处理器21，还用于将频域频谱成形FDSS滤波器参数与所述第二信号的频域向量元素相乘，得到所述OFDM符号。In another implementation, the processor 21 is configured to perform frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth; and the processor 21, It is also used to multiply the frequency domain spectrum shaping FDSS filter parameter with the frequency domain vector element of the second signal to obtain the OFDM symbol.
有关上述处理器21和收发器22更详细的描述可以参考上述图10所述的信号发送方法中发送设备的相关描述得到，这里不加赘述。A more detailed description of the foregoing processor 21 and transceiver 22 can be obtained by referring to the relevant description of the sending device in the signal sending method described in FIG. 10, which is not repeated here.
需要说明的是，上述收发器可以是集成的、具有收发功能的器件，也可以是由独立的、分别具有接收功能的接收器和具有发送功能的发射器组成，逻辑上称为“收发器”。It should be noted that the above transceiver can be an integrated device with a transceiver function, or it can be composed of an independent receiver with a receiving function and a transmitter with a sending function, logically called a "transceiver" .
在另外的实施例中，该通信装置也可以包括处理单元和收发单元，该处理单元用于执行图10所示实施例中S301和S302；以及收发单元用于执行图10所示实施例中S303中反射设备的操作。有关上述处理单元和收发单元更详细的描述可以参考上述图10所述的信号发送方法中发送设备的相关描述得到，这里不加赘述。In another embodiment, the communication device may also include a processing unit and a transceiving unit, where the processing unit is used to perform S301 and S302 in the embodiment shown in FIG. 10; and the transceiving unit is used to perform S303 in the embodiment shown in FIG. Operation of the reflective equipment. For a more detailed description of the foregoing processing unit and transceiver unit, reference may be made to the relevant description of the sending device in the signal sending method described in FIG. 10, which will not be repeated here.
根据本申请实施例提供的一种通信装置，该通信装置根据编码后的比特与元素集合的映射关系，获取与编码后的比特对应的向量，作为第一信号，并对第一信号处理，生成并发送OFDM符号，反射设备以第一参数接收该OFDM符号，并检测OFDM符号对应的调制信号，在反射通信与蜂窝通信融合的场景下，无需对该通信装置的结构做大的改变，可以兼容向反射设备和常规的通信设备发送信号，降低了通信装置的成本。According to a communication device provided by an embodiment of the present application, the communication device obtains a vector corresponding to the encoded bit as a first signal according to the mapping relationship between the encoded bit and the element set, and processes the first signal to generate And send the OFDM symbol, the reflection device receives the OFDM symbol with the first parameter, and detects the modulated signal corresponding to the OFDM symbol. In the scenario where reflection communication and cellular communication are merged, there is no need to make major changes to the structure of the communication device, which is compatible Sending signals to reflection equipment and conventional communication equipment reduces the cost of the communication device.
基于上述实施例中的信号接收方法的同一构思，如图14所示，本申请实施例还提供了一种通信装置3000，该通信装置可应用于上述图3、图4所述的信号接收方法中。该通信装置3000包括：收发器31和处理器32；示例性：Based on the same concept of the signal receiving method in the foregoing embodiment, as shown in FIG. 14, an embodiment of the present application also provides a communication device 3000, which can be applied to the signal receiving method described in FIG. 3 and FIG. 4 in. The communication device 3000 includes: a transceiver 31 and a processor 32; exemplary:
收发器31，用于接收发送设备发送的正交频分复用OFDM符号，其中，所述OFDM符号是所述发送设备对第二信号进行处理后生成的，所述第二信号是所述发送设备对第一信号中的采样点进行重复操作得到的，所述第一信号是所述发送设备采用第一调制方式对编码后的比特进行调制得到的；以及处理器32，用于检测所述OFDM符号。The transceiver 31 is configured to receive an orthogonal frequency division multiplexing OFDM symbol sent by a sending device, where the OFDM symbol is generated after the sending device processes a second signal, and the second signal is the sending device. The device is obtained by performing repeated operations on the sampling points in the first signal, where the first signal is obtained by modulating the encoded bits by the transmitting device using the first modulation method; and the processor 32 is configured to detect the OFDM symbol.
在一个实现中，所述收发器31，用于接收第一指示，所述第一指示用于指示所述反射设备采用第一参数接收所述OFDM符号，其中，所述第一参数包括以下至少一个参数：所述OFDM符号中包括的比特数K、频域变换所要求的采样点的个数M、OFDM符号持续时长、子载波间隔、或者循环前缀类型。In one implementation, the transceiver 31 is configured to receive a first indication, and the first indication is used to instruct the reflection device to use a first parameter to receive the OFDM symbol, where the first parameter includes at least the following One parameter: the number of bits K included in the OFDM symbol, the number of sampling points M required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
有关上述收发器31和处理器32更详细的描述可以参考上述图3、图4所述的信号发送方法中反射设备的相关描述得到，这里不加赘述。A more detailed description of the above transceiver 31 and the processor 32 can be obtained with reference to the related description of the reflection device in the signal sending method described in FIG. 3 and FIG. 4, which will not be repeated here.
需要说明的是，上述收发器可以是集成的、具有收发功能的器件，也可以是由独立的、分别具有接收功能的接收器和具有发送功能的发射器组成，逻辑上称为“收发器”。It should be noted that the above transceiver can be an integrated device with a transceiver function, or it can be composed of an independent receiver with a receiving function and a transmitter with a sending function, logically called a "transceiver" .
在另外的实施例中，该通信装置也可以包括收发单元和处理单元，该收发单元用于执行图3所示实施例的步骤S104中反射设备的操作；以及该处理单元用于执行图3所示实施例中S105的操作。进一步地，该收发单元用于执行图4所示实施例的步骤S201、S208中反射设备的操作；以及该处理单元还用于执行图4所示实施例中S209的操作。In another embodiment, the communication device may also include a transceiving unit and a processing unit, where the transceiving unit is used to perform the operation of the reflection device in step S104 of the embodiment shown in FIG. 3; and the processing unit is used to perform the operation shown in FIG. 3 The operation of S105 in this embodiment is shown. Further, the transceiving unit is used to perform the operations of the reflection device in steps S201 and S208 of the embodiment shown in FIG. 4; and the processing unit is also used to perform the operations of S209 in the embodiment shown in FIG.
根据本申请实施例提供的一种通信装置，该通信装置接收发送设备以兼容向反射设备和常规的通信设备发送信号的流程发送的OFDM符号，检测OFDM符号，实现了该通信装置与发送设备之间的信号传输。According to a communication device provided by an embodiment of the present application, the communication device receives the OFDM symbols sent by the sending device in a process compatible with sending signals to the reflection device and the conventional communication device, detects the OFDM symbols, and realizes the communication device and the sending device. Signal transmission between.
基于上述实施例中的信号接收方法的同一构思，如图15所示，本申请实施例还提供了一种通信装置4000，该通信装置可应用于上述图10所述的信号接收方法中。该通信装置4000包括：收发器41和处理器42；示例性：Based on the same concept of the signal receiving method in the foregoing embodiment, as shown in FIG. 15, an embodiment of the present application further provides a communication device 4000, which can be applied to the signal receiving method described in FIG. 10. The communication device 4000 includes: a transceiver 41 and a processor 42; exemplary:
收发器41，用于接收发送设备发送的正交频分复用OFDM符号，其中，所述OFDM符号是所述发送设备对第一信号进行处理后生成的，第一信号是所述根据编码后的比特与 元素集合的映射关系，获取的所述编码后的比特对应的元素集合，其中，所述编码后的比特包括至少一个比特0、和/或至少一个比特1；所述比特0对应的元素集合包括：p0个1和和q0个0；所述比特1对应的元素集合包括：p1个1和和q1个0；以及处理器42，用于检测所述OFDM符号。The transceiver 41 is configured to receive an orthogonal frequency division multiplexing OFDM symbol sent by a sending device, where the OFDM symbol is generated by the sending device after processing a first signal, and the first signal is encoded according to the The mapping relationship between the bit and the element set of the obtained element set corresponding to the coded bit, wherein the coded bit includes at least one bit 0 and/or at least one bit 1; the bit 0 corresponds to The element set includes: p0 1s and q0 0s; the element set corresponding to the bit 1 includes p1 1s and q1 0s; and a processor 42 for detecting the OFDM symbol.
有关上述收发器41和处理器42更详细的描述可以参考上述图10所述的信号发送方法中反射设备的相关描述得到，这里不加赘述。A more detailed description of the above transceiver 41 and the processor 42 can be obtained by referring to the related description of the reflection device in the signal sending method described in FIG. 10, which will not be repeated here.
需要说明的是，上述收发器可以是集成的、具有收发功能的器件，也可以是由独立的、分别具有接收功能的接收器和具有发送功能的发射器组成，逻辑上称为“收发器”。It should be noted that the above transceiver can be an integrated device with a transceiver function, or it can be composed of an independent receiver with a receiving function and a transmitter with a sending function, logically called a "transceiver" .
在另外的实施例中，该通信装置也可以包括收发单元和处理单元，In another embodiment, the communication device may also include a transceiver unit and a processing unit,
在另外的实施例中，该收发单元用于执行图12所示实施例的步骤S303中反射设备的操作；以及该处理单元用于执行图12所示实施例中S304的操作。In another embodiment, the transceiver unit is used to perform the operation of the reflection device in step S303 of the embodiment shown in FIG. 12; and the processing unit is used to perform the operation of S304 in the embodiment shown in FIG.
根据本申请实施例提供的一种通信装置，该通信装置接收发送设备以兼容向反射设备和常规的通信设备发送信号的流程发送的OFDM符号，检测OFDM符号，实现了该通信装置与发送设备之间的信号传输。According to a communication device provided by an embodiment of the present application, the communication device receives the OFDM symbols sent by the sending device in a process compatible with sending signals to the reflection device and the conventional communication device, detects the OFDM symbols, and realizes the communication device and the sending device. Signal transmission between.
可选的，通信装置在具体实现时可以是芯片或者集成电路。Optionally, the communication device may be a chip or an integrated circuit during specific implementation.
可选的，当上述实施例的信号发送、接收方法中的部分或全部通过软件来实现时，通信装置包括：存储器，用于存储程序；处理器，用于执行存储器存储的程序，当程序被执行时，使得通信装置可以分别实现上述图3、图4和图10所示实施例中发送设备或反射设备提供的信号发送、接收方法。Optionally, when part or all of the signal sending and receiving methods of the foregoing embodiments are implemented by software, the communication device includes: a memory for storing a program; a processor for executing the program stored in the memory, and when the program is When executed, the communication device can respectively implement the signal sending and receiving methods provided by the sending device or the reflecting device in the embodiments shown in FIG. 3, FIG. 4, and FIG. 10.
可选的，上述存储器可以是物理上独立的单元，也可以与处理器集成在一起。该存储器也可以用于存储数据。Optionally, the foregoing memory may be a physically independent unit, or may be integrated with the processor. This memory can also be used to store data.
可选的，当上述实施例的信号发送、接收方法中的部分或全部通过软件实现时，通信装置也可以只包括处理器。用于存储程序的存储器位于通信装置之外，处理器通过电路/电线与存储器连接，用于读取并执行存储器中存储的程序。Optionally, when part or all of the signal sending and receiving methods in the foregoing embodiments are implemented by software, the communication device may also only include a processor. The memory for storing the program is located outside the communication device, and the processor is connected to the memory through a circuit/wire for reading and executing the program stored in the memory.
处理器可以是中央处理器(central processing unit，CPU)，网络处理器(network processor，NP)或者CPU和NP的组合。The processor may be a central processing unit (CPU), a network processor (NP), or a combination of CPU and NP.
处理器还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit，ASIC)，可编程逻辑器件(programmable logic device，PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device，CPLD)，现场可编程逻辑门阵列(field-programmable gate array，FPGA)，通用阵列逻辑(generic array logic，GAL)或其任意组合。The processor may further include a hardware chip. The aforementioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The aforementioned PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (generic array logic, GAL), or any combination thereof.
存储器可以包括易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)；存储器也可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器还可以包括上述种类的存储器的组合。The memory may include volatile memory (volatile memory), such as random-access memory (RAM); the memory may also include non-volatile memory (non-volatile memory), such as flash memory (flash memory) , Hard disk drive (HDD) or solid-state drive (SSD); the memory may also include a combination of the foregoing types of memory.
可以理解的是，上述各个通信装置实施例中的单元也可以称为模块。It can be understood that the units in each of the foregoing communication device embodiments may also be referred to as modules.
本申请实施例还提供了一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序或指令，当该计算机程序或指令被执行时，实现上述实施例中的方法。The embodiments of the present application also provide a computer-readable storage medium in which a computer program or instruction is stored, and when the computer program or instruction is executed, the method in the foregoing embodiment is implemented.
本申请实施例还提供了一种包含指令的计算机程序产品，当该指令在计算机上运行时，使得计算机执行上述实施例中的方法。The embodiments of the present application also provide a computer program product containing instructions, which when the instructions are run on a computer, cause the computer to execute the method in the above-mentioned embodiments.
本申请实施例还提供了一种通信***，包括上述的通信装置。The embodiment of the present application also provides a communication system including the above-mentioned communication device.
需要说明的是，本申请实施例中的术语“***”和“网络”可被互换使用。“多个”是指两个或两个以上，鉴于此，本申请实施例中也可以将“多个”理解为“至少两个”。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，字符“/”，如无特殊说明，一般表示前后关联对象是一种“或”的关系。It should be noted that the terms "system" and "network" in the embodiments of this application can be used interchangeably. "Multiple" refers to two or more. In view of this, "multiple" may also be understood as "at least two" in the embodiments of the present application. "And/or" describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone. In addition, the character "/", unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.
在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，该单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如，多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。所显示或讨论的相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the division of the unit is only a logical function division. In actual implementation, there can be other divisions. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not. carried out. The displayed or discussed mutual coupling, or direct coupling, or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机程序指令时，全部或部分地产生按照本申请实施例的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中，或者通过该计算机可读存储介质进行传输。该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是只读存储器(read-only memory，ROM)，或随机存储存储器(random access memory，RAM)，或磁性介质，例如，软盘、硬盘、磁带、磁碟、或光介质，例如，数字通用光盘(digital versatile disc，DVD)、或者半导体介质，例如，固态硬盘(solid state disk，SSD)等。In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated wholly or partly. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions can be sent from one website, computer, server, or data center to another via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) A website, computer, server or data center for transmission. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. The usable medium can be read-only memory (ROM), random access memory (RAM), or magnetic medium, such as floppy disk, hard disk, magnetic tape, magnetic disk, or optical medium, for example, Digital versatile disc (DVD) or semiconductor media, for example, solid state disk (SSD), etc.

Claims (44)

  1. 一种信号的发送方法，其特征在于，所述方法包括：A signal transmission method, characterized in that the method includes:
    发送设备采用第一调制方式对编码后的比特进行调制，得到第一信号；The sending device modulates the encoded bits by using the first modulation mode to obtain the first signal;
    所述发送设备对所述第一信号中的采样点进行重复操作，得到第二信号；The sending device performs repeated operations on the sampling points in the first signal to obtain a second signal;
    所述发送设备对所述第二信号进行处理，生成正交频分复用OFDM符号；The sending device processes the second signal to generate an orthogonal frequency division multiplexing OFDM symbol;
    所述发送设备向反射设备发送所述OFDM符号。The sending device sends the OFDM symbol to the reflecting device.
  2. 根据权利要求1所述的方法，其特征在于，所述第一信号中的采样点包括至少一个第一采样点、以及至少一个第二采样点，所述发送设备对所述第一信号中的采样点进行重复操作，得到第二信号，包括：The method according to claim 1, wherein the sampling points in the first signal include at least one first sampling point and at least one second sampling point, and the sending device responds to the sampling points in the first signal Repeat the operation at the sampling point to obtain the second signal, including:
    所述发送设备对所述至少一个第一采样点重复R0次，以及对所述至少一个第二采样点重复R1次，得到所述第二信号，所述第二信号包括所述R0个第一采样点和所述R1个第二采样点。The sending device repeats R0 times for the at least one first sampling point and repeats R1 times for the at least one second sampling point to obtain the second signal, and the second signal includes the R0 first sampling points. The sampling point and the R1 second sampling point.
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：The method of claim 2, wherein the method further comprises:
    所述发送设备对所述第二信号进行上采样操作，其中，上采样因子为频域变换所要求的采样点的个数与所述R0和R1之和的商。The sending device performs an up-sampling operation on the second signal, where the up-sampling factor is the quotient of the number of sampling points required for frequency domain transformation and the sum of R0 and R1.
  4. 根据权利要求1或2所述的方法，其特征在于，所述发送设备对所述第二信号进行处理，生成正交频分复用OFDM符号，包括：The method according to claim 1 or 2, wherein the processing by the sending device on the second signal to generate an orthogonal frequency division multiplexing OFDM symbol comprises:
    所述发送设备对所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；Performing frequency domain transformation on the second signal by the sending device to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth;
    所述发送设备对所述频域向量元素进行扩展，得到扩展后的频域向量元素；The sending device expands the frequency domain vector element to obtain an expanded frequency domain vector element;
    所述发送设备将频域频谱成形FDSS滤波器参数与所述扩展后的频域向量元素相乘，得到所述OFDM符号。The transmitting device multiplies the frequency domain spectrum shaping FDSS filter parameter by the expanded frequency domain vector element to obtain the OFDM symbol.
  5. 根据权利要求3所述的方法，其特征在于，所述发送设备对所述第二信号进行处理，生成正交频分复用OFDM符号，包括：The method according to claim 3, wherein the processing of the second signal by the sending device to generate an Orthogonal Frequency Division Multiplexing OFDM symbol comprises:
    所述发送设备对进行上采样操作后的所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；The sending device performs frequency domain transformation on the second signal after the upsampling operation to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth;
    所述发送设备将频域频谱成形FDSS滤波器参数与所述频域向量元素相乘，得到所述OFDM符号。The transmitting device multiplies the frequency domain spectrum shaping FDSS filter parameter by the frequency domain vector element to obtain the OFDM symbol.
  6. 根据权利要求1～5任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1 to 5, wherein the method further comprises:
    所述发送设备向所述反射设备发送第一指示，其中，所述第一指示用于指示所述反射设备采用第一参数接收所述OFDM符号；Sending, by the sending device, a first instruction to the reflecting device, where the first instruction is used to instruct the reflecting device to use the first parameter to receive the OFDM symbol;
    其中，所述第一参数包括如下至少一个参数：所述OFDM符号承载的比特数K，频域变换所要求的采样点的个数M，OFDM符号持续时长，子载波间隔，或者循环前缀类型。Wherein, the first parameter includes at least one of the following parameters: the number of bits K carried by the OFDM symbol, the number M of sampling points required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
  7. 一种信号的接收方法，其特征在于，所述方法包括：A signal receiving method, characterized in that the method includes:
    反射设备接收发送设备发送的正交频分复用OFDM符号，其中，所述OFDM符号是所述发送设备对第二信号进行处理后生成的，所述第二信号是所述发送设备对第一信号中的采样点进行重复操作得到的，所述第一信号是所述发送设备采用第一调制方式对编码后的比特进行调制得到的；The reflection device receives the orthogonal frequency division multiplexing OFDM symbol sent by the sending device, where the OFDM symbol is generated after the sending device processes the second signal, and the second signal is the first signal sent by the sending device. Obtained by repeated operations on sampling points in the signal, and the first signal is obtained by modulating encoded bits by the sending device using a first modulation method;
    所述反射设备检测所述OFDM符号。The reflection device detects the OFDM symbol.
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：The method according to claim 7, wherein the method further comprises:
    所述反射设备接收第一指示，所述第一指示用于指示所述反射设备采用第一参数接收所述OFDM符号,其中，所述第一参数包括以下至少一个参数：所述OFDM符号中包括的比特数K、频域变换所要求的采样点的个数M、OFDM符号持续时长、子载波间隔、或者循环前缀类型。The reflection device receives a first instruction, and the first instruction is used to instruct the reflection device to use a first parameter to receive the OFDM symbol, where the first parameter includes at least one of the following parameters: the OFDM symbol includes The number of bits K, the number of sampling points M required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
  9. 一种信号的发送方法，其特征在于，所述方法包括：A signal transmission method, characterized in that the method includes:
    发送设备根据编码后的比特与元素集合的映射关系，获取所述编码后的比特对应的元素集合，作为第一信号，其中，所述编码后的比特包括至少一个比特0、和/或至少一个比特1；所述比特0对应的元素集合包括：p0个1和和q0个0；所述比特1对应的元素集合包括：p1个1和和q1个0；The sending device obtains the element set corresponding to the encoded bit as the first signal according to the mapping relationship between the encoded bit and the element set, where the encoded bit includes at least one bit 0 and/or at least one bit Bit 1; the set of elements corresponding to the bit 0 includes: p0 ones and q0 zeros; the set of elements corresponding to the bit 1 includes p1 ones and q1 zeros;
    所述发送设备对所述第一信号进行处理，生成正交频分复用OFDM符号；The sending device processes the first signal to generate an orthogonal frequency division multiplexing OFDM symbol;
    所述发送设备向反射设备发送所述OFDM符号。The sending device sends the OFDM symbol to the reflecting device.
  10. 根据权利要求9所述的方法，其特征在于：The method according to claim 9, characterized in that:
    p0和p1不相等，q0和q1相等；或者p0 and p1 are not equal, q0 and q1 are equal; or
    p0和p1相等，q0和q1不相等；或者p0 and p1 are equal, q0 and q1 are not equal; or
    p0和p1不相等，q0和q1不相等；或者p0 and p1 are not equal, q0 and q1 are not equal; or
    p0和p1不相等，p0和q0之和与p1和q1之和相等；或者p0 and p1 are not equal, the sum of p0 and q0 is equal to the sum of p1 and q1; or
    q0和q1不相等，p0和q0之和与p1和q1之和相等。q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
  11. 根据权利要求9或10所述的方法，其特征在于，所述发送设备对所述第一信号进行处理，生成OFDM符号，包括：The method according to claim 9 or 10, wherein the processing by the sending device on the first signal to generate an OFDM symbol comprises:
    所述发送设备对所述第一信号进行上采样操作，得到第二信号，其中，上采样因子为所述频域变换所要求的采样点的个数与所述第一信号的采样点的个数的商。The sending device performs an upsampling operation on the first signal to obtain a second signal, wherein the upsampling factor is the number of sampling points required by the frequency domain transformation and the number of sampling points of the first signal The quotient of the number.
  12. 根据权利要求9或10所述的方法，其特征在于，所述发送设备对所述第一信号进行处理，生成OFDM符号，包括：The method according to claim 9 or 10, wherein the processing by the sending device on the first signal to generate an OFDM symbol comprises:
    所述发送设备对所述第一信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；Performing frequency domain transformation on the first signal by the sending device to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth;
    所述发送设备对所述频域向量元素进行扩展，得到所述第一信号的扩展后的频域向量元素；Extending the frequency domain vector element by the sending device to obtain an expanded frequency domain vector element of the first signal;
    所述发送设备将频域频谱成形FDSS滤波器参数与所述第一信号的扩展后的频域向量元素相乘，得到所述OFDM符号。The transmitting device multiplies the frequency domain spectrum shaping FDSS filter parameter by the expanded frequency domain vector element of the first signal to obtain the OFDM symbol.
  13. 根据权利要求11所述的方法，其特征在于，所述发送设备对所述第一信号进行处理，生成OFDM符号，包括：The method according to claim 11, wherein the processing by the sending device on the first signal to generate an OFDM symbol comprises:
    所述发送设备对所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；Performing frequency domain transformation on the second signal by the sending device to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth;
    所述发送设备将频域频谱成形FDSS滤波器参数与所述第二信号的频域向量元素相乘，得到所述OFDM符号。The transmitting device multiplies the frequency domain spectrum shaping FDSS filter parameter with the frequency domain vector element of the second signal to obtain the OFDM symbol.
  14. 一种信号的接收方法，其特征在于，所述方法包括：A signal receiving method, characterized in that the method includes:
    反射设备接收发送设备发送的正交频分复用OFDM符号，其中，所述OFDM符号是所述发送设备对第一信号进行处理后生成的，第一信号是所述根据编码后的比特与元素集合的映射关系，获取的所述编码后的比特对应的元素集合，其中，所述编码后的比特包括至少一个比特0、和/或至少一个比特1；所述比特0对应的元素集合包括：p0个1和和q0个0；所述比特1对应的元素集合包括：p1个1和和q1个0；The reflection device receives the orthogonal frequency division multiplexing OFDM symbol sent by the sending device, where the OFDM symbol is generated after the sending device processes the first signal, and the first signal is based on the encoded bits and elements. The mapping relationship of the set, the acquired element set corresponding to the encoded bit, wherein the encoded bit includes at least one bit 0 and/or at least one bit 1, and the element set corresponding to the bit 0 includes: p0 1s and q0 0s; the set of elements corresponding to the bit 1 includes: p1 1s and q1 0s;
    所述反射设备检测所述OFDM符号。The reflection device detects the OFDM symbol.
  15. 根据权利要求14所述的方法，其特征在于，The method of claim 14, wherein:
    p0和p1不相等，q0和q1相等；或者p0 and p1 are not equal, q0 and q1 are equal; or
    p0和p1相等，q0和q1不相等；或者p0 and p1 are equal, q0 and q1 are not equal; or
    p0和p1不相等，q0和q1不相等；或者p0 and p1 are not equal, q0 and q1 are not equal; or
    p0和p1不相等，p0和q0之和与p1和q1之和相等；或者p0 and p1 are not equal, the sum of p0 and q0 is equal to the sum of p1 and q1; or
    q0和q1不相等，p0和q0之和与p1和q1之和相等。q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
  16. 一种通信装置，其特征在于，包括：A communication device, characterized by comprising:
    处理单元，用于采用第一调制方式对编码后的比特进行调制，得到第一信号；A processing unit, configured to use the first modulation mode to modulate the encoded bits to obtain the first signal;
    所述处理单元，还用于对所述第一信号中的采样点进行重复操作，得到第二信号；The processing unit is further configured to perform repeated operations on sampling points in the first signal to obtain a second signal;
    所述处理单元，还用于对所述第二信号进行处理，生成正交频分复用OFDM符号；The processing unit is further configured to process the second signal to generate an orthogonal frequency division multiplexing OFDM symbol;
    收发单元，用于向反射设备发送所述OFDM符号。The transceiver unit is configured to send the OFDM symbol to the reflection device.
  17. 根据权利要求16所述的通信装置，其特征在于，所述第一信号中的采样点包括至少一个第一采样点、以及至少一个第二采样点；The communication device according to claim 16, wherein the sampling points in the first signal include at least one first sampling point and at least one second sampling point;
    所述处理单元，用于对所述至少一个第一采样点重复R0次，以及对所述至少一个第 二采样点重复R1次，得到所述第二信号，所述第二信号包括所述R0个第一采样点和所述R1个第二采样点。The processing unit is configured to repeat R0 times for the at least one first sampling point and repeat R1 times for the at least one second sampling point to obtain the second signal, where the second signal includes the R0 First sampling points and the R1 second sampling points.
  18. 根据权利要求17所述的通信装置，其特征在于，所述处理单元，用于对所述第二信号进行上采样操作，其中，上采样因子为频域变换所要求的采样点的个数与所述R0和R1之和的商。The communication device according to claim 17, wherein the processing unit is configured to perform an upsampling operation on the second signal, wherein the upsampling factor is the number of sampling points required by the frequency domain transformation and The quotient of the sum of R0 and R1.
  19. 根据权利要求16或17所述的通信装置，其特征在于，所述处理单元，用于对所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；The communication device according to claim 16 or 17, wherein the processing unit is configured to perform frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth;
    所述处理单元，还用于对所述频域向量元素进行扩展，得到扩展后的频域向量元素；The processing unit is further configured to expand the frequency domain vector element to obtain an expanded frequency domain vector element;
    所述处理单元，还用于将频域频谱成形FDSS滤波器参数与所述扩展后的频域向量元素相乘，得到所述OFDM符号。The processing unit is further configured to multiply the frequency domain spectrum shaping FDSS filter parameter and the expanded frequency domain vector element to obtain the OFDM symbol.
  20. 根据权利要求18所述的通信装置，其特征在于，所述处理单元，用于对进行上采样操作后的所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；The communication device according to claim 18, wherein the processing unit is configured to perform frequency domain transformation on the second signal after the upsampling operation to obtain frequency domain vector elements, and the frequency domain transformation The size is the first bandwidth;
    所述处理单元，还用于将频域频谱成形FDSS滤波器参数与所述扩展后的频域向量元素相乘，得到所述OFDM符号。The processing unit is further configured to multiply the frequency domain spectrum shaping FDSS filter parameter and the expanded frequency domain vector element to obtain the OFDM symbol.
  21. 根据权利要求16～20任一项所述的通信装置，其特征在于，所述收发单元，还用于向所述反射设备发送第一指示，其中，所述第一指示用于指示所述反射设备采用第一参数接收所述OFDM符号；The communication device according to any one of claims 16 to 20, wherein the transceiver unit is further configured to send a first instruction to the reflection device, wherein the first instruction is used to indicate the reflection The device receives the OFDM symbol by using the first parameter;
    其中，所述第一参数包括如下至少一个参数：所述OFDM符号承载的比特数K，频域变换所要求的采样点的个数M，OFDM符号持续时长，子载波间隔，或者循环前缀类型。Wherein, the first parameter includes at least one of the following parameters: the number of bits K carried by the OFDM symbol, the number M of sampling points required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
  22. 一种通信装置，其特征在于，包括：A communication device, characterized by comprising:
    收发单元，用于接收发送设备发送的正交频分复用OFDM符号，其中，所述OFDM符号是所述发送设备对第二信号进行处理后生成的，所述第二信号是所述发送设备对第一信号中的采样点进行重复操作得到的，所述第一信号是所述发送设备采用第一调制方式对编码后的比特进行调制得到的；The transceiving unit is configured to receive an orthogonal frequency division multiplexing OFDM symbol sent by a sending device, where the OFDM symbol is generated by the sending device after processing a second signal, and the second signal is the sending device Obtained by repeated operations on sampling points in the first signal, where the first signal is obtained by modulating encoded bits by the sending device using a first modulation method;
    处理单元，用于检测所述OFDM符号。The processing unit is configured to detect the OFDM symbol.
  23. 根据权利要求22所述的通信装置，其特征在于，所述收发单元，用于接收第一指示，所述第一指示用于指示所述反射设备采用第一参数接收所述OFDM符号,其中，所述第一参数包括以下至少一个参数：所述OFDM符号中包括的比特数K、频域变换所要求的采样点的个数M、OFDM符号持续时长、子载波间隔、或者循环前缀类型。The communication device according to claim 22, wherein the transceiving unit is configured to receive a first instruction, and the first instruction is used to instruct the reflection device to use the first parameter to receive the OFDM symbol, wherein: The first parameter includes at least one of the following parameters: the number of bits K included in the OFDM symbol, the number M of sampling points required for frequency domain transformation, the duration of the OFDM symbol, the subcarrier spacing, or the type of cyclic prefix.
  24. 一种通信装置，其特征在于，包括：A communication device, characterized by comprising:
    处理单元，用于根据编码后的比特与元素集合的映射关系，获取所述编码后的比特对应的元素集合，作为第一信号，其中，所述编码后的比特包括至少一个比特0、和/或至少一个比特1；所述比特0对应的元素集合包括：p0个1和和q0个0；所述比特1对应的元素集合包括：p1个1和和q1个0；The processing unit is configured to obtain the element set corresponding to the encoded bit according to the mapping relationship between the encoded bit and the element set, as the first signal, wherein the encoded bit includes at least one bit 0, and/ Or at least one bit 1; the set of elements corresponding to the bit 0 includes: p0 1s and q0 0s; the set of elements corresponding to the bit 1 includes p1 1s and q1 0s;
    所述处理单元，还用于对所述第一信号进行处理，生成正交频分复用OFDM符号；The processing unit is further configured to process the first signal to generate an orthogonal frequency division multiplexing OFDM symbol;
    收发单元，用于向反射设备发送所述OFDM符号。The transceiver unit is configured to send the OFDM symbol to the reflection device.
  25. 根据权利要求24所述的通信装置，其特征在于：The communication device according to claim 24, wherein:
    p0和p1不相等，q0和q1相等；或者p0 and p1 are not equal, q0 and q1 are equal; or
    p0和p1相等，q0和q1不相等；或者p0 and p1 are equal, q0 and q1 are not equal; or
    p0和p1不相等，q0和q1不相等；或者p0 and p1 are not equal, q0 and q1 are not equal; or
    p0和p1不相等，p0和q0之和与p1和q1之和相等；或者p0 and p1 are not equal, the sum of p0 and q0 is equal to the sum of p1 and q1; or
    q0和q1不相等，p0和q0之和与p1和q1之和相等。q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
  26. 根据权利要求24或25所述的通信装置，其特征在于，所述处理单元，用于对所述第一信号进行上采样操作，得到第二信号，其中，上采样因子为所述频域变换所要求的采样点的个数与所述第一信号的采样点的个数的商。The communication device according to claim 24 or 25, wherein the processing unit is configured to perform an up-sampling operation on the first signal to obtain a second signal, wherein the up-sampling factor is the frequency domain transform The quotient of the number of required sampling points and the number of sampling points of the first signal.
  27. 根据权利要求24或25所述的通信装置，其特征在于，所述处理单元，用于对所述第一信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；The communication device according to claim 24 or 25, wherein the processing unit is configured to perform frequency domain transformation on the first signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth;
    所述处理单元，还用于对所述频域向量元素进行扩展，得到所述第一信号的扩展后的频域向量元素；The processing unit is further configured to expand the frequency domain vector element to obtain an expanded frequency domain vector element of the first signal;
    所述处理单元，还用于将频域频谱成形FDSS滤波器参数与所述第一信号的扩展后的频域向量元素相乘，得到所述OFDM符号。The processing unit is further configured to multiply the frequency domain spectrum shaping FDSS filter parameter and the expanded frequency domain vector element of the first signal to obtain the OFDM symbol.
  28. 根据权利要求26所述的通信装置，其特征在于，所述处理单元，用于对所述第二信号进行频域变换，得到频域向量元素，所述频域变换的尺寸是第一带宽；The communication device according to claim 26, wherein the processing unit is configured to perform frequency domain transformation on the second signal to obtain frequency domain vector elements, and the size of the frequency domain transformation is the first bandwidth;
    所述处理单元，还用于将频域频谱成形FDSS滤波器参数与所述第二信号的扩展后的频域向量元素相乘，得到所述OFDM符号。The processing unit is further configured to multiply the frequency domain spectrum shaping FDSS filter parameter with the expanded frequency domain vector element of the second signal to obtain the OFDM symbol.
  29. 一种通信装置，其特征在于，包括：A communication device, characterized by comprising:
    收发单元，用于接收发送设备发送的正交频分复用OFDM符号，其中，所述OFDM符号是所述发送设备对第一信号进行处理后生成的，第一信号是所述根据编码后的比特与元素集合的映射关系，获取的所述编码后的比特对应的元素集合，其中，所述编码后的比特包括至少一个比特0、和/或至少一个比特1；所述比特0对应的元素集合包括：p0个1和和q0个0；所述比特1对应的元素集合包括：p1个1和和q1个0；The transceiving unit is configured to receive orthogonal frequency division multiplexing OFDM symbols sent by the sending device, where the OFDM symbols are generated by the sending device after processing a first signal, and the first signal is encoded according to the The mapping relationship between the bit and the element set, the obtained element set corresponding to the encoded bit, wherein the encoded bit includes at least one bit 0 and/or at least one bit 1; the element corresponding to the bit 0 The set includes: p0 1s and q0 0s; the element set corresponding to the bit 1 includes: p1 1s and q1 0s;
    处理单元，用于检测所述OFDM符号。The processing unit is configured to detect the OFDM symbol.
  30. 根据权利要求29所述的通信装置，其特征在于，The communication device according to claim 29, wherein:
    p0和p1不相等，q0和q1相等；或者p0 and p1 are not equal, q0 and q1 are equal; or
    p0和p1相等，q0和q1不相等；或者p0 and p1 are equal, q0 and q1 are not equal; or
    p0和p1不相等，q0和q1不相等；或者p0 and p1 are not equal, q0 and q1 are not equal; or
    p0和p1不相等，p0和q0之和与p1和q1之和相等；或者p0 and p1 are not equal, the sum of p0 and q0 is equal to the sum of p1 and q1; or
    q0和q1不相等，p0和q0之和与p1和q1之和相等。q0 and q1 are not equal, and the sum of p0 and q0 is equal to the sum of p1 and q1.
  31. 一种通信装置，其特征在于，包括：处理器，用于执行存储器中存储的程序，当所述程序被执行时，使得所述通信装置执行如权利要求1～6中任一项所述的方法。A communication device, comprising: a processor, configured to execute a program stored in a memory, and when the program is executed, the communication device is caused to execute the communication device according to any one of claims 1 to 6 method.
  32. 根据权利要求31所述的通信装置，其特征在于，所述存储器位于所述通信装置之外。The communication device according to claim 31, wherein the memory is located outside the communication device.
  33. 一种通信装置，其特征在于，包括：处理器，用于执行存储器中存储的程序，当所述程序被执行时，使得所述通信装置执行如权利要求7～8中任一项所述的方法。A communication device, comprising: a processor, configured to execute a program stored in a memory, and when the program is executed, the communication device is caused to execute the communication device according to any one of claims 7 to 8. method.
  34. 根据权利要求33所述的通信装置，其特征在于，所述存储器位于所述通信装置之外。The communication device according to claim 33, wherein the memory is located outside the communication device.
  35. 一种通信装置，其特征在于，包括：处理器，用于执行存储器中存储的程序，当所述程序被执行时，使得所述通信装置执行如权利要求9～13中任一项所述的方法。A communication device, characterized by comprising: a processor, configured to execute a program stored in a memory, and when the program is executed, the communication device is caused to execute the communication device according to any one of claims 9 to 13 method.
  36. 根据权利要求35所述的通信装置，其特征在于，所述存储器位于所述通信装置之外。The communication device according to claim 35, wherein the memory is located outside the communication device.
  37. 一种通信装置，其特征在于，包括：处理器，用于执行存储器中存储的程序，当所述程序被执行时，使得所述通信装置执行如权利要求14～15中任一项所述的方法。A communication device, characterized by comprising: a processor, configured to execute a program stored in a memory, and when the program is executed, the communication device is caused to execute the communication device according to any one of claims 14 to 15 method.
  38. 根据权利要求37所述的接入网设备，其特征在于，所述存储器位于所述通信装置之外。The access network device according to claim 37, wherein the memory is located outside the communication device.
  39. 一种通信装置，其特征在于，所述通信装置包括处理器、存储器以及存储在存储器上并可在处理器上运行的计算机程序，当所述计算机程序被运行时，执行如权利要求1～6中任一项所述的方法。A communication device, characterized in that the communication device includes a processor, a memory, and a computer program stored on the memory and running on the processor, and when the computer program is run, it executes as claimed in claims 1 to 6 The method of any one of.
  40. 一种通信装置，其特征在于，所述通信装置包括处理器、存储器以及存储在存储器上并可在处理器上运行的计算机程序，当所述计算机程序被运行时，执行如权利要求7～8中任一项所述的方法。A communication device, characterized in that, the communication device includes a processor, a memory, and a computer program stored on the memory and running on the processor, and when the computer program is run, it executes as claimed in claims 7-8 The method of any one of.
  41. 一种通信装置，其特征在于，所述通信装置包括处理器、存储器以及存储在存储器上并可在处理器上运行的计算机程序，当所述计算机程序被运行时，执行如权利要求9～13中任一项所述的方法。A communication device, characterized in that, the communication device includes a processor, a memory, and a computer program stored on the memory and running on the processor, and when the computer program is run, it executes as claimed in claims 9-13 The method of any one of.
  42. 一种通信装置，其特征在于，所述通信装置包括处理器、存储器以及存储在存储器上并可在处理器上运行的计算机程序，当所述计算机程序被运行时，执行如权利要求14～15中任一项所述的方法。A communication device, characterized in that the communication device includes a processor, a memory, and a computer program stored on the memory and running on the processor, and when the computer program is run, it executes as claimed in claims 14-15 The method of any one of.
  43. 一种计算机存储介质，存储有程序，其特征在于，所述程序用于实现如权利要求1～15中任一项所述的方法。A computer storage medium storing a program, wherein the program is used to implement the method according to any one of claims 1-15.
  44. 一种计算机程序产品，其特征在于，当其在计算机上运行时，使得计算机执行如权利要求1～15中任一项所述的方法。A computer program product, characterized in that, when it runs on a computer, it causes the computer to execute the method according to any one of claims 1-15.
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