WO2024087818A1 - 信号的发送、接收方法及通信节点、存储介质 - Google Patents

信号的发送、接收方法及通信节点、存储介质 Download PDF

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Publication number
WO2024087818A1
WO2024087818A1 PCT/CN2023/113371 CN2023113371W WO2024087818A1 WO 2024087818 A1 WO2024087818 A1 WO 2024087818A1 CN 2023113371 W CN2023113371 W CN 2023113371W WO 2024087818 A1 WO2024087818 A1 WO 2024087818A1
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Prior art keywords
data
control information
frame structure
sequence
symbol
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PCT/CN2023/113371
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English (en)
French (fr)
Inventor
边峦剑
戴博
胡有军
陈梦竹
杨维维
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中兴通讯股份有限公司
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Publication of WO2024087818A1 publication Critical patent/WO2024087818A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/06—Notations for structuring of protocol data, e.g. abstract syntax notation one [ASN.1]

Definitions

  • the present disclosure relates to the field of passive Internet of Things, and in particular to a signal sending and receiving method, a communication node, and a storage medium.
  • some embodiments of the present disclosure provide a method for sending a signal.
  • the sending method includes: a transmitting end sends a frame structure signal; the frame structure signal includes one or more of the following: a leading sequence, a delimiter, a data sequence, control information, and a terminator.
  • the frame structure signal includes a leading sequence, N data sequences, N-1 separators and an end symbol, where N is an integer greater than 1; the separator is located between two adjacent data sequences.
  • the frame structure signal includes a leading sequence, a data sequence that is repeatedly transmitted R times, R-1 separators, and an end symbol, where R is an integer greater than 1; the separator is located between two adjacent repeatedly transmitted data sequences.
  • the frame structure signal includes in the time domain: a preamble sequence, a first data symbol repeated R times, a separator, and a second data symbol repeated R times to an Sth data symbol repeated R times; S is the number of data symbols contained in a data sequence.
  • the frame structure signal includes a leading sequence, control information, a separator, and M data sequences in sequence in the time domain; M is an integer greater than or equal to 1.
  • some embodiments of the present disclosure provide a method for receiving a signal.
  • the receiving method includes: a receiving end receives a frame structure signal; the frame structure signal includes one or more of the following: a leading sequence, a delimiter, a data sequence, control information, or a terminator.
  • some embodiments of the present disclosure provide a signal sending device, which includes: a sending module, configured to send a frame structure signal; the frame structure signal includes one or more of the following: a leading sequence, a delimiter, a data sequence, control information, and a terminator.
  • some embodiments of the present disclosure provide a signal receiving device, which includes: a receiving module, configured to receive a frame structure signal; the frame structure signal includes one or more of the following: a leading sequence, a delimiter, a data sequence, control information, or a terminator.
  • the signal receiving device further includes a processing module, configured to determine a separator or an end symbol according to the duration of the first symbol.
  • the processing module is used to, if the duration of the first symbol is greater than the first duration threshold, and less than If the duration of the first symbol is greater than the second duration threshold, the first symbol is determined to be a separator; or, if the duration of the first symbol is greater than the third duration threshold, the first symbol is determined to be an end symbol; the first duration threshold is less than the second duration threshold, and the second duration threshold is less than or equal to the third duration threshold. In some examples, the first duration threshold is equal to the duration of one data symbol.
  • the processing module is further used to determine the number of repeated transmissions of the data sequence according to the number of delimiters in the frame structure signal.
  • the above-mentioned processing module is also used to determine the total duration T of the R repeated transmissions of the first data symbol in the data sequence according to the delimiter; based on the total duration T of the R repeated transmissions of the first data symbol, determine the number of repeated transmissions R of the data sequence, and the number of repeated transmissions R is equal to the quotient obtained by dividing the total duration T of the R repeated transmissions of the first data symbol by the length of one data symbol.
  • the processing module is further used to determine the total length of the control information according to the delimiter.
  • some embodiments of the present disclosure provide a communication node.
  • the communication node includes: a memory and a processor; the memory and the processor are coupled; the memory is used to store a computer program; and the processor implements the signal sending method or signal receiving method described in any of the above embodiments when executing the computer program.
  • some embodiments of the present disclosure provide a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement the signal sending method or signal receiving method described in any of the above embodiments.
  • some embodiments of the present disclosure provide a computer program product, which includes computer program instructions, and when the computer program instructions are executed by a processor, the signal sending method or signal receiving method described in any of the above embodiments is implemented.
  • FIG1 is a schematic diagram of a frame structure signal according to some techniques
  • FIG2 is a schematic diagram of the structure of a backscattering system according to some embodiments.
  • FIG3 is a schematic diagram of a method for sending a signal according to some embodiments.
  • FIG4 is a schematic diagram of a frame structure signal according to some embodiments.
  • FIG5 is a schematic diagram of yet another frame structure signal according to some embodiments.
  • FIG6 is a schematic diagram of another frame structure signal according to some embodiments.
  • FIG7 is a schematic diagram of another frame structure signal according to some embodiments.
  • FIG8 is a schematic diagram of another frame structure signal according to some embodiments.
  • FIG9 is a schematic diagram of another frame structure signal according to some embodiments.
  • FIG10 is a schematic diagram of a method for receiving a signal according to some embodiments.
  • FIG11 is a schematic diagram of yet another signal receiving method according to some embodiments.
  • FIG12 is a schematic diagram of another signal receiving method according to some embodiments.
  • FIG13 is a schematic diagram of yet another signal receiving method according to some embodiments.
  • FIG14 is a schematic diagram of yet another signal receiving method according to some embodiments.
  • FIG15 is a schematic structural diagram of a signal sending device according to some embodiments.
  • FIG16 is a schematic structural diagram of a signal receiving device according to some embodiments.
  • FIG17 is a schematic diagram of the structure of a communication node according to some embodiments.
  • first and second are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
  • the features defined as “first” and “second” may explicitly or implicitly include one or more features.
  • the passive Internet of Things With the rapid development of the information industry, the application of passive Internet of Things is becoming more and more extensive. As a highly integrated and comprehensive application of the new generation of information technology, the passive Internet of Things has the characteristics of strong penetration, great driving effect and good comprehensive benefits. It is another promoter of the development of the information industry after computers, the Internet and mobile communication networks.
  • the communication process based on the passive Internet of Things in order to improve the signal-to-noise ratio of the received data, expand the communication range or improve the communication quality, it is sometimes necessary to send information by repeated data transmission. In addition, in order to improve transmission efficiency and save time domain resources, it is sometimes necessary to send information by continuous scheduling of multiple data sequences.
  • FIG. 1 shows a frame structure signal in some technologies.
  • the frame structure signal includes: a preamble, a destination address, a source address, a type, a variable-length data part, and a frame error check sequence (Frame Check Sequence, FCS) in the time domain; the preamble in Figure 1 is used to achieve clock synchronization and/or indicate the start of the frame structure signal, and the type in Figure 1 is used to indicate the protocol type of the data field of the frame structure signal.
  • FCS Frame Check Sequence
  • some embodiments of the present disclosure provide a method for sending a signal, the method comprising: a transmitting end sends a frame structure signal; the frame structure signal includes one or more of the following: a leading sequence, a delimiter, a data sequence, control information, and an end character.
  • the format of the frame structure signal is improved so that the receiving end can know the number of repeated transmissions or the number of repeated transmissions of the data sequence after receiving the frame structure signal.
  • the number of data sequences is increased, so that the communication between the receiving end and the sending end can support repeated transmission of data or scheduling of multiple data sequences to improve communication reliability.
  • the signal transmission method and signal receiving method provided in some embodiments of the present disclosure can be applied to a backscatter communication system that supports data transmission of a passive Internet of Things, and the backscatter communication system can be applied to systems of various communication formats.
  • the backscatter communication system can be applied to systems including, but not limited to, long term evolution (LTE) systems, various versions based on LTE evolution, fifth generation (5G) systems, and new radio (NR) and other next generation communication systems.
  • LTE long term evolution
  • 5G fifth generation
  • NR new radio
  • the signal transmission method and signal receiving method provided in some embodiments of the present disclosure can also be applied to future-oriented communication technologies, etc.
  • FIG2 is a schematic diagram of a backscatter communication system according to some embodiments. To more clearly illustrate the solution, reference may be made to the backscatter system shown in FIG2. As shown in FIG2, the backscatter system 100 may include a passive device 101, a wireless radio frequency device 102, and a network device 103.
  • the passive device 101, the wireless RF device 102 and the network device 103 may be deployed independently; or, the wireless RF device 102 and the network device 103 may be deployed together, for example, the wireless RF device 102 may be deployed in the network device 103, and the present disclosure does not impose any specific limitation on this.
  • the passive device 101 is a terminal device in a passive Internet of Things or a device having the function of a terminal device.
  • the passive device 101 can receive information from the wireless radio frequency device 102.
  • the passive device 101 can reflect information from the wireless radio frequency device 102 to the network device 103.
  • the passive device 101 may also be referred to as a reflector, a backscatter terminal, a reflection terminal, a semi-passive device, an ambient signal device, a tag or a tag device, etc.
  • the device for realizing the function of the passive device may be the passive device 101, or may be a device that can support the passive device to realize the function, such as a chip system.
  • the chip system may be composed of a chip, or may include a chip and other discrete devices. The embodiments of the present disclosure do not limit the specific device form adopted by the passive device 101.
  • the wireless radio frequency device 102 is a device that can generate a high-frequency carrier signal. In some embodiments, the wireless radio frequency device 102 can send information to the passive device 101, for example, it can provide a carrier signal to the passive device 101. In some embodiments, the wireless radio frequency device 102 can obtain information sent by the network device 103.
  • the wireless radio frequency device 102 can also be called a radio frequency device, an auxiliary device, an auxiliary device, an exciter, an excitation source, a radio frequency source, an interrogator, or a reader, etc.
  • the device for implementing the function of the wireless radio frequency device can be the wireless radio frequency device 102, or it can be a device that can support the wireless radio frequency device 102 to implement the function, such as a chip system.
  • the embodiments of the present disclosure do not limit the specific device form adopted by the wireless radio frequency device 102.
  • the wireless radio frequency device may be a user equipment (UE).
  • UE may be a device with wireless transceiver functions, which may be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; may also be deployed on the water (such as a ship); or may be deployed in the air (such as an airplane, a balloon, or a satellite).
  • UE can be a mobile phone, a tablet computer or a computer with wireless transceiver function.
  • the UE can also be called a terminal or terminal device, and the terminal device can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in smart grid, a wireless terminal in smart city, a wireless terminal in smart home, etc.
  • VR virtual reality
  • AR augmented reality
  • the network device 103 may also be referred to as a receiver, a receiver or a receiving device, etc.
  • the network device 103 may include a base station; the base station may have various forms, such as a macro base station, a micro base station, a relay station and an access point, etc.; the base station may be a base station in an LTE system, a base station in an NR system, or a base station in a future communication system.
  • the device for implementing the function of the network device may be a network device, or a device that can support the network device to implement the function, such as a chip system. In the embodiments of the present disclosure, taking the device for implementing the function of the network device as a network device as an example, the technical solution provided by the embodiments of the present disclosure is described.
  • Fig. 3 is a schematic diagram of a method for sending a signal according to some embodiments, the method being executed by a sending end. Referring to Fig. 3 , the method includes S101.
  • the transmitting end sends a frame structure signal; the frame structure signal includes one or more of the following: a leading sequence, a delimiter, a data sequence, control information, or an end character.
  • the transmitter can be any one of a passive device, a wireless radio frequency device or a network device in the backscatter system; or, in the case where the wireless radio frequency device and the network device are deployed together, the transmitter can also be a device after the wireless radio frequency device and the network device are deployed together.
  • the relevant contents of the passive device, the wireless radio frequency device and the network device can refer to the above description of Figure 2, which will not be repeated here. It can be understood that in actual applications, as the user needs are different, the transmitter will also correspond to different devices, and the present disclosure does not limit this.
  • the data sequence is composed of data symbols.
  • each data symbol of the data sequence is a bit information, and the data sequence is a bit sequence.
  • each data symbol of the data sequence is a coded code element information, and the data sequence is a coded code element sequence.
  • each data symbol of the data sequence can be a modulated modulation symbol, and the data sequence is a modulation symbol sequence. It is understandable that the data symbols in the data sequence can also be other data forms, and the embodiments of the present disclosure do not specifically limit this.
  • the delimiter includes a period of continuous high-level signal and/or continuous low-level signal.
  • the delimiter is a continuous high-level signal.
  • the delimiter is a continuous low-level signal.
  • the delimiter includes a data symbol and a continuous high-level signal.
  • the delimiter includes a data symbol and a continuous low-level signal.
  • the separator contains a short low level and a continuous high level signal. The duration of the continuous high level signal.
  • the separator includes a short high-level signal and a continuous low-level signal, and the duration of the short high-level signal is shorter than the duration of the continuous low-level signal.
  • the separator may also be other forms of data including a segment of continuous high-level signal and/or continuous low-level signal, and the present disclosure does not limit the form of the separator.
  • the duration of the continuous high-level signal included in the delimiter is greater than the duration of a data symbol, and the duration of the continuous high-level signal included in the delimiter is less than the duration of the end symbol.
  • the duration of the continuous high-level signal included in the separator is shorter than the duration of the continuous high-level signal included in the terminator.
  • the duration of the continuous low-level signal included in the delimiter is greater than the duration of a data symbol, and the duration of the continuous low-level signal included in the delimiter is less than the duration of the end symbol.
  • the duration of the continuous low-level signal included in the separator is shorter than the duration of the continuous low-level signal included in the terminator.
  • the frame structure signal includes a preamble sequence; the preamble sequence is located at the frame header of the frame structure signal and is used to assist the receiving end in synchronously receiving the frame structure signal.
  • the frame structure signal includes an end symbol; the end symbol is located at the end of the frame structure signal and is used to indicate the end of the frame structure signal.
  • the frame structure signal may support repeated transmission of data or continuous scheduling of multiple data sequences.
  • the frame structure signal may include at least one of the frame structure signals shown in implementation mode 1, implementation mode 2, implementation mode 3 or implementation mode 4 below. However, it is not limited thereto. In the case where the frame structure signal includes one or more of a leading sequence, a delimiter, a data sequence, control information or a terminator, the frame structure signal may also include other implementation modes in addition to the following implementation modes 1 to 4. In order to more clearly illustrate the frame structure signal provided in the embodiments of the present disclosure, the possible implementation modes of the frame structure signal are described in detail below.
  • the frame structure signal includes a leading sequence, N data sequences, N-1 separators and an end symbol, where N is an integer greater than 1; the separator is located between two adjacent data sequences.
  • a delimiter may be used to separate two adjacent data sequences.
  • a delimiter may be used to determine where a previous data sequence ends or a subsequent data sequence begins.
  • the frame structure signal includes N subframes; for the N subframes, each subframe includes a data sequence. As shown in (1) of FIG4 , the first subframe also includes a leading sequence, and as shown in (2) of FIG4 , the last subframe also includes an end mark; in addition, subframes other than the first subframe also include a separator.
  • the subframes other than the first subframe and the last subframe include a delimiter and a data sequence.
  • the N data sequences mentioned above are different data sequences.
  • the frame structure signal shown in implementation method 1 transmits the following four different data sequences: data sequence A, data sequence B, data sequence C, and data sequence D
  • the frame structure signal can be implemented in the form shown in FIG. 5 , for example.
  • the frame structure signal includes a leading sequence, the above four data sequences, three separators and an end symbol; and the three separators are respectively located between data sequence A and data sequence B, between data sequence B and data sequence C, and between data sequence C and data sequence D.
  • the frame structure signal includes four subframes, the first subframe includes a leading sequence, the last subframe includes an end symbol, and the second subframe, the third subframe, and the fourth subframe each include a delimiter.
  • the frame structure signal includes a leading sequence, a data sequence that is repeatedly transmitted R times, R-1 delimiters, and an end symbol, where R is an integer greater than 1; the delimiter is located between two adjacent repeatedly transmitted data sequences.
  • a delimiter may be used to separate two adjacent data sequences.
  • the delimiter can be used to determine where a previous transmission of a data sequence ends or a next transmission begins.
  • the delimiter can be used to assist a subsequent receiving end in determining the number of repetitions of the data sequence.
  • the number of repetitions of the data sequence is equal to the number of delimiters detected plus one.
  • the frame structure signal includes R subframes; for the R subframes, each subframe includes a data sequence transmitted once among the data sequences repeatedly transmitted R times. Still as shown in (1) in FIG4 , the first subframe also includes a preamble sequence, and still as shown in (2) in FIG4 , the last subframe also includes an end symbol; in addition, subframes other than the first subframe also include a separator.
  • the first subframe also includes a preamble sequence
  • the last subframe also includes a terminator
  • subframes other than the first subframe also include a delimiter.
  • the frame structure signal shown in implementation mode 2 is used to transmit the data sequence E four times repeatedly, the frame structure signal can be implemented in the form shown in FIG. 6 , for example.
  • the frame structure signal includes a preamble sequence, a data sequence E that is transmitted four times repeatedly, three delimiters, and an end symbol; and the three delimiters are located between two adjacent data sequences E, respectively.
  • the frame structure signal includes four subframes, the first subframe includes a leading sequence, the last subframe includes an end symbol, and the second subframe, the third subframe, and the fourth subframe each include a delimiter.
  • the frame structure signal includes in the time domain: a leading sequence, a first data symbol repeated R times, a separator, and a second data symbol repeated R times to an Sth data symbol repeated R times; S is the number of data symbols contained in a data sequence.
  • the first data symbol, the second data symbol to the Sth data symbol shown in implementation method three are S data symbols in the same data sequence.
  • the frame tail of the frame structure signal also includes an end symbol, and the end symbol is used to indicate the end of the frame structure signal.
  • the data symbol may be repeated in a simple manner, or the data symbol may be repeated in a simple manner.
  • the data symbol may be repeated by extending the data symbol based on an extension code, thereby achieving repetition, and the length of the extension code is equal to the number of repeated transmissions.
  • 111 can be obtained.
  • 111 is the data sequence obtained by simply repeating the data symbol.
  • the extended data [1 1 -1] can be obtained.
  • [1 1 -1] is a data sequence obtained by extending the data symbol 1 based on the extension code.
  • the length of the extension code is equal to the number of repeated transmissions of the data symbol 1, for example, R times. For example, when the data symbol 1 is repeated 3 times, the length of the extension code is equal to 3. It can be understood that since the length of the extension code is equal to 3, when the data symbol 1 is multiplied by the extension code, it can be understood that the data symbol 1 is repeated three times according to the rule of the data symbol in the extension code.
  • the frame structure signal can be implemented in the form shown in FIG. 7 , for example.
  • the frame structure signal in the time domain includes, in sequence: a preamble sequence, the first data symbol of three repeated transmissions (i.e., 000), a separator, the second data symbol of three repeated transmissions (i.e., 000), the third data symbol of three repeated transmissions (i.e., 111), the fourth data symbol of three repeated transmissions (i.e., 000), the fifth data symbol of three repeated transmissions (i.e., 111), and the sixth data symbol of three repeated transmissions (i.e., 111).
  • a terminator may also be included at the end of the frame of the frame structure signal.
  • the frame structure signal in the time domain includes: a leading sequence, the first data symbol of three repeated transmissions (that is, 000), a separator, the second data symbol of three repeated transmissions (that is, 000), the third data symbol of three repeated transmissions (that is, 101), the fourth data symbol of three repeated transmissions (that is, 000), the fifth data symbol of three repeated transmissions (that is, 101), and the sixth data symbol of three repeated transmissions (that is, 101).
  • a terminator may also be included at the end of the frame of the frame structure signal.
  • the frame structure signal includes a leading sequence, control information, a separator and M data sequences in the time domain; M is an integer greater than or equal to 1.
  • FIG8 shows a schematic structural diagram of a frame structure signal shown in implementation mode 4.
  • control information is control information transmitted once, or control information transmitted repeatedly multiple times.
  • the M data sequences are M data sequences transmitted once, or M data sequences transmitted repeatedly multiple times.
  • the frame structure signal shown in implementation mode 4 transmits M data sequences at a time
  • the frame structure signal includes in the time domain: a leading sequence, control information, a separator, and M data sequences transmitted at a time.
  • the M data sequences are the following three data sequences: data sequence 110, data sequence 111, and data sequence 000, then the frame structure signal shown in implementation method 4 is implemented in the form of the frame structure signal shown in (1) in Figure 9, for example.
  • the repetition method in the frame structure signal shown in implementation method 4 includes one or more of the following repetition method 1, repetition method 2 or repetition method 3.
  • Repetition method 1 Repeat and send the entire data sequence as a unit.
  • the frame structure signal in the time domain is sequentially a preamble sequence, control information, a delimiter, the data sequence F transmitted for the first time, and the data sequence F transmitted for the second time to the data sequence F transmitted for the Rth time.
  • the repetition mode 1 may be specifically implemented as follows: repeating and sending the M data sequences as a whole; or repeating and sending each data sequence in the M data sequences as a whole.
  • the frame structure signal shown in the fourth implementation mode can be specifically implemented in the form of the frame structure signal shown in (2) in Figure 9. It can be seen that the three data sequences 110111000 are repeated three times as a whole, thereby realizing repeated transmission of the data sequence.
  • the frame structure signal shown in the fourth implementation mode can be specifically implemented in the form of the frame structure signal shown in (3) in FIG9. It can be seen that the frame structure signal is repeated three times in the time domain with the data sequence 110 as the unit, and then repeated three times with the data sequence 111 as the unit, and finally repeated three times with the data sequence 000 as the unit, thereby realizing the repeated transmission of the data sequence.
  • Repetition mode 2 repeating and sending the data sequence in units of data symbols.
  • the data sequence F contains S data symbols.
  • the frame structure signal shown in implementation method 4 repeatedly transmits the data sequence F R times
  • the corresponding frame structure signal in the time domain includes, in sequence: a preamble sequence, control information, a delimiter, the first data symbol transmitted R times, the second data symbol transmitted R times, and so on to the Sth data symbol transmitted R times.
  • the frame structure signal shown in implementation mode 4 can be, for example, It is implemented in the form of a frame structure signal as shown in (4) in Figure 9. It can be seen that each data symbol in the data sequence 110, the data sequence 111, and the data sequence 000 is repeated 3 times, thereby achieving repeated transmission of the data sequence.
  • Repetition mode three based on the extension code, the data sequence is repeated and sent.
  • each data symbol in the data sequence F is multiplied by the extension code and then transmitted.
  • the length of the extension code is the number of data elements included in the extension code, and the length of the extension code is equal to the number of repeated transmissions R.
  • the data sequence F contains S data symbols.
  • the corresponding frame structure signal in the time domain includes, in sequence: a preamble sequence, control information, a delimiter, a data sequence obtained by multiplying the extension code by the first data symbol, a data sequence obtained by multiplying the extension code by the second data symbol, and so on to a data sequence obtained by multiplying the extension code by the Sth data symbol.
  • each data symbol contained in the M data sequences as a whole is multiplied by the extension code and then transmitted; or, each data symbol contained in each data sequence in the M data sequences is multiplied by the extension code and then transmitted.
  • the effect of repetition is essentially the same. Therefore, the following only shows the method of multiplying each data symbol contained in each data sequence in the M data sequences by the extension code and then transmitting.
  • the frame structure signal shown in implementation mode 4 can be implemented in the form of the frame structure signal shown in (5) in FIG9 . It can be seen that each data symbol in the data sequence 110, the data sequence 111, and the data sequence 000 is multiplied by [1 0 1] and then transmitted, so that the data symbol 1 is extended to 101, and the data symbol 0 is extended to 000, thereby achieving repeated transmission of the data sequence.
  • the repetition method of the control information in the frame structure signal shown in the fourth implementation method includes: repeating and sending the control information as a whole; or repeating and sending the control information as a data symbol included in the control information; or repeating and sending the control information based on the extension code, for example, each data symbol in the control information is multiplied by the extension code and then sent.
  • the repetition method of the control information can refer to the description of the repetition method of the above-mentioned data sequence (such as repetition method 1, repetition method 2 and repetition method 3), which will not be repeated here.
  • the frame structure signal shown in implementation method four may also include an end symbol (as shown in the dotted box in Figure 8), and the end symbol is located at the end of the frame structure signal to indicate the end of the frame structure signal.
  • the delimiter is located between the control information and the M data sequences to separate the control information and the M data sequences.
  • the delimiter is also used to indicate the length of the control information and/or the number of times the control information is repeatedly transmitted.
  • the control information length is the control information length of a single transmission.
  • the delimiter may also facilitate a subsequent receiving end to determine the end time of the control information, and further determine the total length of the control information.
  • the delimiter may be used to determine the number of times the control information is repeatedly transmitted based on the total length of the control information and the aforementioned fixed length.
  • the delimiter can be used to determine the length of the control information for single transmission. It is understandable that, in the case of single transmission, the total length of the control information is the length of the control information for single transmission.
  • the total length of the control information is equal to the product of the control information length of a single transmission and the number of times the control information is repeatedly transmitted; wherein the control information length of a single transmission is the number of data symbols contained in the control information of a single transmission.
  • each type of total length of control information corresponds to a single-transmitted control information length and a number of times the control information is repeatedly transmitted.
  • the total length of the control information Ci ,j corresponds to a single-transmission control information length Pi and a number of control information repeated transmissions Qj ; i is the index of the control information length, j is the index of the control information repeated transmissions, and i and j are integers greater than or equal to 1.
  • control information length P i includes x optional length configurations, for example: P 1 , P 2 , ... , P x ;
  • control information repetition transmission times Q j includes y optional repetition transmission times configurations, for example, including Q 1 , Q 2 , ... , Q y ;
  • x and y are both positive integers;
  • control information length includes two optional length configurations, namely P 1 and P 2 ; the control information repetition transmission times includes eight optional repetition transmission times configurations, including Q 1 , Q 2 , ..., Q 8 .
  • the total control information length C includes 16 optional length configurations, namely P 1 ⁇ Q 1 , P 2 ⁇ Q 1 , P 1 ⁇ Q 2 , P 2 ⁇ Q 2 , ..., P 1 ⁇ Q 8 , P 2 ⁇ Q 8 .
  • the length configuration of the control information length P i for a single transmission and the number of repetitions Q j for the control information repetitions can be adjusted to make the x ⁇ y optional total length configurations included in the total length Ci ,j of the control information different from each other.
  • the subsequent receiving end can determine the corresponding P i and Q j to Ci , j according to the total length Ci,j of the control information.
  • the delimiter and the preamble sequence are also used to jointly indicate the control information length and/or the number of repeated transmissions of the control information.
  • control information is used to indicate relevant information of the data sequence.
  • control information is used to indicate one or more of the following indication information: data sequence length, number of data sequences, number of repeated transmissions, modulation mode, or code rate; the data sequence length is the number of data symbols contained in the data sequence.
  • the preamble sequence is also used to indicate whether the frame structure signal is an uplink frame structure signal or a downlink frame structure signal.
  • the preamble sequence is also used to indicate an implementation method of the frame structure signal, such as implementation method one, implementation method two, implementation method three or implementation method four of the above-mentioned frame structure signal.
  • the preamble sequence of the frame structure signal is also used to indicate whether the data sequence is broadcast data or unicast data.
  • the frame structure signal when the preamble sequence indicates that the data sequence is unicast data, includes a receiving end identifier and an instruction index; and in the frame structure signal, the receiving end identifier is located before the instruction index, that is, the bit corresponding to the receiving end identifier is higher than the bit corresponding to the instruction index.
  • the instruction index is used to instruct the receiving end to execute the corresponding instruction when the receiving end identifier matches.
  • the delimiter is also used to indicate one or more of the following transmission configurations of the frame structure signal: modulation and coding mode, code rate, data sequence length, control information length, number of data sequences, or number of repeated transmissions.
  • each case in the transmission configuration of the frame structure signal corresponds to a delimiter index.
  • different frame structure signal transmission configurations may correspond to the same delimiter index.
  • different frame structure signal transmission configuration situations correspond to different delimiter indexes.
  • each code rate corresponds to a delimiter index. It is understandable that the above code rate can also be replaced by a combination of any one or more of the transmission configurations (e.g., modulation and coding mode, data sequence length, control information length, number of data sequences, or number of repeated transmissions).
  • the delimiter indicates the data sequence length and the control information length
  • each configuration of the data sequence length and the control information length corresponds to a delimiter index.
  • the present disclosure does not impose specific restrictions on this.
  • the preamble sequence and delimiter are also used to jointly indicate one or more of the following transmission configurations of the frame structure signal: modulation coding mode, code rate, data sequence length, control information length, number of data sequences, or number of repeated transmissions.
  • the delimiter index may be determined based on a format signal of the delimiter.
  • the delimiter includes H types (H is a positive integer) of format signals, and each format signal of the delimiter corresponds to a different delimiter index.
  • the leading sequence index may be determined based on a format signal of the leading sequence.
  • the leading sequence includes K types (K is a positive integer) of format signals, and each format signal of the leading sequence corresponds to a different leading sequence index.
  • different situations in the transmission configuration of the frame structure signal may correspond to the same combination of the delimiter index and the preamble sequence index.
  • each case in the transmission configuration of the frame structure signal corresponds to a combination of a delimiter index and a preamble sequence index.
  • each code rate corresponds to a combination of a delimiter index and a leading sequence index. It is understandable that the above code rate can also be replaced by a combination of any one or more of the transmission configurations (e.g., modulation and coding mode, data sequence length, control information length, number of data sequences, or number of repeated transmissions).
  • the transmission configurations e.g., modulation and coding mode, data sequence length, control information length, number of data sequences, or number of repeated transmissions.
  • each configuration of the data sequence length and the control information length corresponds to a combination of a delimiter index and a leading sequence index. The present disclosure does not specifically limit this.
  • the delimiter includes H delimiter indexes
  • the preamble sequence includes K preamble sequence indexes, where K and H are positive integers, and therefore there are K ⁇ H combinations of delimiter indexes and preamble sequence indexes.
  • a combination of a delimiter index and a leading sequence index may indicate a transmission configuration situation, and each transmission configuration situation corresponds to a combination of a delimiter index and a leading sequence index ⁇ k_num, h_num ⁇ ; k_num is the leading sequence index, and k_num is a non-negative integer less than K (e.g., 0, 1, ... K-1), h_num is the leading delimiter index, and h_num is a non-negative integer less than H (e.g., 0, 1, ... H-1).
  • the above K ⁇ H combinations of delimiter indices and preamble sequence indices may indicate a maximum of K ⁇ H transmission configurations.
  • the above K ⁇ H combinations of delimiter indices and preamble sequence indices can indicate less than K ⁇ H transmission configurations.
  • Table 1 exemplarily shows the corresponding relationship between the value of the combination of the delimiter index and the leading sequence index ⁇ k_num, h_num ⁇ and the transmission configuration.
  • Optional Mode 1 there are two corresponding relationships, namely, Optional Mode 1 and Optional Mode 2.
  • the receiving end may adopt the corresponding relationship of one of the two methods, and the present disclosure does not impose any specific limitation on this.
  • the above S101 may be implemented as: the transmitting end sends a default frame structure signal.
  • the frame structure signal may be a default frame structure signal agreed upon with the receiving end in advance.
  • the transmitting end agrees in advance with the receiving end that the frame structure signal shown in implementation mode 1 is the default frame structure signal, and sends the frame structure signal shown in implementation mode 1 to the receiving end.
  • the frame structure signal shown in the above implementation mode 1 can also be replaced by the frame structure signal shown in implementation mode 2, implementation mode 3 or implementation mode 4, and the embodiments of the present disclosure do not specifically limit this.
  • the above S101 can be implemented as follows: the transmitting end selects a frame structure signal to be transmitted from at least one preset frame structure signal based on high-level signaling, and transmits the frame structure signal to be transmitted.
  • the high-level signaling is used to indicate the frame structure signal used by the transmitting end.
  • the above S101 can be implemented as follows: the transmitting end selects a frame structure signal to be sent from at least one preset frame structure signal based on the content of the data to be sent, and sends the frame structure signal to be sent.
  • the frame structure signal shown in the fourth implementation mode is used as the frame structure signal to be sent; or, if the content of the data to be sent includes multiple different data sequences,
  • the frame structure signal shown in implementation method one is used as the frame structure signal to be sent; or, if the content of the data to be sent includes multiple repeated data sequences, the frame structure signal shown in implementation method two is used as the frame structure signal to be sent; or, if the content of the data to be sent includes a data sequence that is repeatedly transmitted multiple times in units of data symbols, the frame structure signal shown in implementation method three is used as the frame structure signal to be sent.
  • the format of the frame structure signal is improved so that the receiving end can know the number of repeated transmissions of the data sequence or the number of data sequences after receiving the frame structure signal, so that the communication between the receiving end and the sending end can support the repeated transmission of data or the scheduling of multiple data sequences to improve communication reliability.
  • Fig. 10 is a schematic diagram of a signal receiving method according to some embodiments, the receiving method corresponds to the signal sending method shown in Fig. 3 and is executed by a receiving end. Referring to Fig. 10 , the method includes S201.
  • a receiving end receives a frame structure signal; the frame structure signal includes one or more of the following: a leading sequence, a delimiter, a data sequence, control information, or an end character.
  • the data format of the data sequence, the content of the separator (for example, containing a period of continuous high-level signal and/or continuous low-level signal), the duration of the separator (for example, the duration of the continuous high-level signal contained in the separator, or the duration of the continuous low-level signal contained in the separator), and the possible implementation methods of the frame structure signal (for example, implementation method one, implementation method two, implementation method three and implementation method four) have been introduced in detail when describing the method of the above-mentioned receiving end, and will not be repeated here.
  • the receiving end may be any one of a passive device, a wireless radio frequency device or a network device in a backscatter system; or, in the case where the wireless radio frequency device and the network device are deployed together, the receiving end may also be a device after the wireless radio frequency device and the network device are deployed together.
  • the relevant contents of the passive device, the wireless radio frequency device and the network device can refer to the above description of Figure 2, which will not be repeated here. It is understandable that in actual applications, as the user's needs are different, the receiving end will also correspond to different devices, and the present disclosure does not limit this.
  • the preamble sequence of the frame structure signal can be used to indicate whether the data sequence is broadcast data or unicast data.
  • the data sequence includes a receiving end identifier and an instruction index, and in the data sequence, the receiving end identifier is located before the instruction index.
  • the instruction index is used to instruct the receiving end to execute the corresponding instruction when the receiving end identifier matches.
  • a receiving end when a receiving end receives a frame structure signal, when the identification code of the receiving end itself is inconsistent with the receiving end identifier in the frame structure signal, the receiving end determines that the information of the frame structure signal is invalid, or abandons decoding the frame structure signal; or, when the identification code of the receiving end itself is consistent with the receiving end identifier in the frame structure signal, the receiving end executes the operation corresponding to the instruction index according to the instruction index in the frame structure signal.
  • the above-mentioned receiving method further includes S202 .
  • S202 Determine a separator or an end symbol according to the duration of the first symbol.
  • the first symbol is a continuous low level signal or a continuous high level signal.
  • S202 is implemented as follows: if the duration of the first symbol is greater than a first duration threshold and less than a second duration threshold, then the first symbol is determined to be a separator; or, if the duration of the first symbol is greater than a third duration threshold, then the first symbol is determined to be an end symbol; the first duration threshold is less than the second duration threshold, and the second duration threshold is less than or equal to the third duration threshold.
  • the first duration threshold is greater than or equal to the duration of one data symbol.
  • the delimiter is used to indicate one or more of the following transmission configurations of the frame structure signal: modulation and coding mode, code rate, data sequence length, control information length, number of data sequences, or number of repeated transmissions.
  • the preamble sequence and delimiter are used to jointly indicate one or more of the following transmission configurations of the frame structure signal: modulation coding mode, code rate, data sequence length, control information length, number of data sequences, or number of repeated transmissions.
  • the receiving end can also decode the frame structure signal according to the transmission configuration indicated by the delimiter, or the transmission configuration jointly indicated by the preamble sequence and the delimiter.
  • the above-mentioned receiving method also includes S203a.
  • S203a Determine the number of repeated transmissions of the data sequence according to the number of delimiters in the frame structure signal.
  • the number of repetitions of the data sequence is equal to the number of delimiters plus 1.
  • the above-mentioned receiving method further includes S2031b to S2032b.
  • S2032b Determine the number of repeated transmissions R of the data sequence based on the total duration T of the R repeated transmissions of the first data symbol.
  • the number of repeated transmissions R is equal to the quotient of the total duration T of the R repeated transmissions of the first data symbol and the duration of one data symbol.
  • the above-mentioned receiving method further includes S203c.
  • control information is located between the leading sequence and the delimiter. Therefore, after determining the delimiter, the receiving end can determine the total length of the control information based on the data length between the leading sequence and the delimiter.
  • the above-mentioned receiving method may further include S2041 , S2042 , or S2043 .
  • control information length includes optional length configurations in x, such as: P 1 , P 2 , ..., P x ;
  • control information repetition transmission times includes y optional repetition transmission times configurations, such as Q 1 , Q 2 , ..., Q y ;
  • x and y are both positive integers;
  • the total length of the control information includes x ⁇ y optional total length configurations.
  • each configuration of the total length of the control information corresponds to a configuration of the control information length of a single transmission and the number of control information repetition transmissions. Therefore, the control information length of a single transmission and the number of control information repetition transmissions corresponding to the total length of the control information can be determined according to the total length of the control information.
  • S2042 When the control information is transmitted once, determine the length of the control information transmitted once according to the total length of the control information.
  • the length of the control information transmitted in a single transmission is equal to the total length of the control information.
  • the number of repeated transmissions of the control information is equal to the quotient obtained by dividing the total length of the control information by the length of the control information transmitted once.
  • control information is used to indicate relevant information of the data sequence.
  • control information is used to indicate one or more of the following indication information: data sequence length, number of data sequences, number of repeated transmissions, modulation mode, or code rate; the data sequence length is the number of data symbols contained in the data sequence.
  • the receiving end can accurately read the control information from the frame structure signal, and then decode the data sequence based on the control information.
  • the format of the frame structure signal is improved so that the receiving end can know the number of repeated transmissions of the data sequence or the number of data sequences after receiving the frame structure signal, so that the communication between the receiving end and the transmitting end can support the repeated transmission of data or the scheduling of multiple data sequences to improve communication reliability.
  • the signal sending device includes hardware structures and/or software modules corresponding to the execution of each function in order to implement the above-mentioned signal sending method; in addition, the signal receiving device includes hardware structures and/or software modules corresponding to the execution of each function in order to implement the above-mentioned signal sending method.
  • the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present disclosure.
  • the embodiments of the present disclosure may divide the signal sending device or the signal receiving device into functional modules according to the above method embodiments.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module.
  • the above integrated modules may be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.
  • FIG15 is a schematic diagram of a structure of a signal sending device according to some embodiments of the present disclosure, and the signal sending device can execute the signal sending method provided by the above method embodiment.
  • the signal sending device 200 includes: a sending module 201.
  • the signal sending device 200 also includes a generating module 202.
  • the sending module 201 is used to send a frame structure signal; the frame structure signal includes one or more of the following: a leading sequence, a delimiter, a data sequence, control information, or a terminator.
  • the generating module 202 is configured to generate the frame structure signal.
  • the frame structure signal may be a frame structure signal as shown in any of the above method embodiments and possible implementations thereof.
  • the frame structure signal includes a leading sequence, N data sequences, N-1 separators and an end symbol, where N is an integer greater than 1; the separator is located between two adjacent data sequences.
  • the frame structure signal includes N subframes; for the N subframes, each subframe includes a The first subframe also includes a preamble sequence, the last subframe also includes an end character, and other subframes except the first subframe also include a delimiter.
  • the frame structure signal includes a leading sequence, a data sequence that is repeatedly transmitted R times, R-1 separators, and an end symbol, where R is an integer greater than 1; the separator is located between two adjacent repeatedly transmitted data sequences.
  • the frame structure signal includes R subframes; for the R subframes, each subframe includes a data sequence transmitted once, the first subframe also includes a leading sequence, the last subframe also includes an end symbol, and other subframes except the first subframe also include a separator.
  • the frame structure signal includes in the time domain: a preamble sequence, a first data symbol repeated R times, a separator, and a second data symbol repeated R times to an Sth data symbol repeated R times; S is the number of data symbols contained in a data sequence.
  • the frame structure signal includes a leading sequence, control information, a separator, and M data sequences in sequence in the time domain; M is an integer greater than or equal to 1.
  • the total length Ci ,j of the control information corresponds to a single-transmission control information length Pi and a control information repetition transmission number Qj ; i is the index of the control information length, j is the index of the control information repetition transmission number, and i and j are integers greater than or equal to 1.
  • the preamble sequence indicates whether the data sequence is broadcast data or unicast data.
  • the data sequence when the preamble sequence indicates that the data sequence is unicast data, the data sequence includes a receiving end identifier and an instruction index, and in the data sequence, the receiving end identifier is located before the instruction index.
  • the delimiter includes a section of continuous high-level signal, and the duration of the continuous high-level signal included in the delimiter is greater than the duration of a data symbol, and the duration of the continuous high-level signal included in the delimiter is less than the duration of the continuous high-level signal included in the end character; or, the delimiter includes a section of continuous low-level signal, and the duration of the continuous low-level signal included in the delimiter is greater than the duration of a data symbol, and the duration of the continuous low-level signal included in the delimiter is less than the duration of the continuous low-level signal included in the end character.
  • the delimiter indicates one or more of the following transmission configurations of the frame structure signal: modulation and coding mode, code rate, data sequence length, control information length, number of data sequences, or number of repeated transmissions; or, the preamble sequence and the delimiter jointly indicate one or more of the following transmission configurations of the frame structure signal: modulation and coding mode, code rate, data sequence length, control information length, number of data sequences, or number of repeated transmissions.
  • each case in the transmission configuration of the frame structure signal corresponds to a delimiter index.
  • each case in the transmission configuration of the frame structure signal corresponds to a combination of a delimiter index and a preamble sequence index.
  • FIG16 is a schematic diagram of the structure of a signal receiving device according to some embodiments of the present disclosure, and the signal receiving device can execute the signal receiving method provided by the above method embodiment.
  • the signal receiving device 300 includes: a receiving module 301.
  • the signal receiving device 300 also includes a processing module 302.
  • the receiving module 301 is used for receiving a frame structure signal at a receiving end; the frame structure signal includes one or more of the following: a leading sequence, a delimiter, a data sequence, control information, or a terminator.
  • the processing module 302 is used to determine a separator or an end symbol according to the duration of the first symbol.
  • the first symbol is a continuous low level signal or a continuous high level signal; the processing module 302 is used to determine that the first symbol belongs to a separator if the duration of the first symbol is greater than a first duration threshold and less than a second duration threshold; or, if the duration of the first symbol is greater than a third duration threshold, determine that the first symbol belongs to an end symbol; the first duration threshold is less than the second duration threshold, and the second duration threshold is less than or equal to the third duration threshold.
  • the first duration threshold is equal to the duration of a data symbol.
  • the processing module 302 is further used to determine the number of repeated transmissions of the data sequence according to the number of delimiters in the frame structure signal, and the number of repeated transmissions of the data sequence is equal to the value of the number of delimiters plus 1.
  • the processing module 302 is further used to determine the total duration T of the R repeated transmissions of the first data symbol in the data sequence according to the delimiter; based on the total duration T of the R repeated transmissions of the first data symbol, determine the number of repeated transmissions R of the data sequence, and the number of repeated transmissions R is equal to the quotient of the total duration T of the R repeated transmissions of the first data symbol and the duration of a data symbol.
  • the processing module 302 is further configured to determine the total length of the control information according to the delimiter.
  • the processing module 302 is used to determine the length of the control information of a single transmission and the number of repeated transmissions of the control information corresponding to the total length of the control information based on the total length of the control information; or, in the case where the control information is a single transmission, determine the length of the control information of a single transmission based on the total length of the control information, and the length of the control information of a single transmission is equal to the total length of the control information; or, in the case where the length of the control information of a single transmission is a fixed value, determine the number of repeated transmissions of the control information based on the total length of the control information, and the number of repeated transmissions of the control information is equal to the quotient obtained by dividing the total length of the control information by the length of the control information of a single transmission.
  • the communication node 400 includes: a communication interface 403, a processor 402, and a bus 404.
  • the communication node may also include a memory 401.
  • the processor 402 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure.
  • the processor 402 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof.
  • the processor 402 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure.
  • the processor 402 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the communication interface 403 is used to connect with other devices through a communication network.
  • the communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.
  • the memory 401 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to these.
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • disk storage medium or other magnetic storage device or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to these.
  • the memory 401 may exist independently of the processor 402.
  • the memory 401 may be connected to the processor 402 via a bus 404 and used to store instructions or program codes.
  • the processor 402 calls and executes the stored instructions.
  • the signal sending method or signal receiving method provided by the embodiments of the present disclosure can be implemented.
  • the memory 401 may also be integrated with the processor 402 .
  • the bus 404 may be an extended industry standard architecture (EISA) bus, etc.
  • the bus 404 may be divided into an address bus, a data bus, a control bus, etc.
  • FIG17 only uses one thick line, but does not mean that there is only one bus or one type of bus.
  • Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), in which computer program instructions are stored.
  • a computer-readable storage medium e.g., a non-transitory computer-readable storage medium
  • the computer executes a signal sending method or a signal receiving method as described in any of the above embodiments.
  • the computer may be a terminal device or a device having the functions of a terminal device; or, the computer may be a network device or a device having the functions of a network device; or, the computer may be any one of a passive device, a wireless radio frequency device, or a network device; or, the computer may be a device in which a wireless radio frequency device and a network device are deployed in combination; or, the computer may be the above-mentioned communication node or a processor of a communication node; or, the computer may be any other device having communication functions, and the present disclosure does not limit the specific form of the computer.
  • the computer-readable storage media described above may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes, etc.), optical disks (e.g., Compact Disks (CDs), Digital Versatile Disks (DVDs), etc.), smart cards, and flash memory devices (e.g., Erasable Programmable Read-Only Memory (EPROMs), cards, sticks, or key drives, etc.).
  • the various computer-readable storage media described in the present disclosure may represent one or more devices and/or other machine-readable storage media for storing information.
  • the term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • the embodiments of the present disclosure provide a computer program product including instructions.
  • the computer program product When the computer program product is run on a computer, the computer is enabled to execute the signal sending method or signal receiving method of any one of the above embodiments.

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Abstract

提供一种信号的发送、接收方法及通信节点、存储介质。该通信方法包括：发送帧结构信号；帧结构信号包括以下一项或多项：前导序列、分隔符、数据序列、控制信息，或者结束符。

Description

信号的发送、接收方法及通信节点、存储介质
本公开要求于2022年10月25日提交的、申请号为202211314268.3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。
技术领域
本公开涉及无源物联网领域，尤其涉及一种信号的发送、接收方法及通信节点、存储介质。
背景技术
随着信息产业的快速发展，无源物联网(IoT，internet of things)的应用也越来越广泛。作为新一代信息技术的高度集成和综合运用，无源物联网具有渗透性强、带动作用大、综合效益好的特点，是继计算机、互联网、移动通信网之后信息产业发展的又一推动者。
发明内容
一方面，本公开一些实施例提供一种信号的发送方法。该发送方法包括：发送端发送帧结构信号；帧结构信号包括以下一项或多项：前导序列、分隔符、数据序列、控制信息，以及结束符。
在一些实施例中，帧结构信号包括前导序列、N个数据序列、N-1个分隔符以及一个结束符，N为大于1的整数；分隔符位于相邻的两个数据序列之间。
在一些实施例中，帧结构信号包括前导序列、R次重复传输的数据序列、R-1个分隔符以及一个结束符，R为大于1的整数；分隔符位于相邻两个重复传输的数据序列之间。
在一些实施例中，帧结构信号在时域上依次包括：前导序列、R次重复的第一个数据符号、分隔符，以及R次重复的第二个数据符号至R次重复的第S个数据符号；S为一个数据序列包含的数据符号数量。
在一些实施例中，帧结构信号在时域上依次包括前导序列、控制信息、分隔符以及M个数据序列；M为大于或等于1的整数。
另一方面，本公开一些实施例提供一种信号的接收方法。该接收方法包括：接收端接收帧结构信号；帧结构信号包括以下一项或多项：前导序列、分隔符、数据序列、控制信息，或者结束符。
又一方面，本公开一些实施例提供一种信号的发送装置。该发送装置包括：发送模块，用于发送帧结构信号；帧结构信号包括以下一项或多项：前导序列、分隔符、数据序列、控制信息，以及结束符。
又一方面，本公开一些实施例提供一种信号的接收装置。该接收装置包括：接收模块，用于接收帧结构信号；帧结构信号包括以下一项或多项：前导序列、分隔符、数据序列、控制信息，或者结束符。
在一些实施例中，信号的接收装置还包括处理模块，用于根据第一符号的时长来确定分隔符或结束符。
在一些实施例中，上述处理模块用于，若第一符号的时长大于第一时长阈值，且小 于第二时长阈值，则确定第一符号属于分隔符；或者，若第一符号的时长大于第三时长阈值，则确定第一符号属于结束符；第一时长阈值小于第二时长阈值，第二时长阈值小于或等于第三时长阈值。在一些示例中，第一时长阈值等于一个数据符号的时长。
在一些实施例中，上述处理模块还用于根据帧结构信号中的分隔符数量，确定数据序列的重复传输次数。
在一些实施例中，上述处理模块还用于根据分隔符确定数据序列中第一个数据符号R次重复传输的总时长T；基于第一个数据符号R次重复传输的总时长T，确定数据序列的重复传输次数R，重复传输次数R等于第一个数据符号R次重复传输的总时长T除以一个数据符号的时长得到的商。
在一些实施例中，上述处理模块还用于根据分隔符，确定控制信息的总长度。
又一方面，本公开一些实施例提供一种通信节点。该通信节点包括：存储器和处理器；存储器和处理器耦合；存储器用于存储计算机程序；处理器执行计算机程序时实现上述任一实施例所述的信号的发送方法或信号的接收方法。
又一方面，本公开一些实施例提供一种计算机可读存储介质。该计算机可读存储介质上存储有计算机程序指令，该计算机程序指令被处理器执行时实现上述任一实施例所述的信号的发送方法或信号的接收方法。
又一方面，本公开一些实施例提供一种计算机程序产品。该计算机程序产品包括计算机程序指令，该计算机程序指令被处理器执行时实现上述任一实施例所述的信号的发送方法或信号的接收方法。
附图说明
为了更清楚地说明本公开中的技术方案，下面将对本公开一些实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例的附图，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。
图1为根据一些技术的一种帧结构信号的示意图；
图2为根据一些实施例的一种反向散射系统的结构示意图；
图3为根据一些实施例的一种信号的发送方法的示意图；
图4为根据一些实施例的一种帧结构信号的示意图；
图5为根据一些实施例的再一种帧结构信号的示意图；
图6为根据一些实施例的另一种帧结构信号的示意图；
图7为根据一些实施例的又一种帧结构信号的示意图；
图8为根据一些实施例的又一种帧结构信号的示意图；
图9为根据一些实施例的又一种帧结构信号的示意图；
图10为根据一些实施例的一种信号的接收方法的示意图；
图11为根据一些实施例的再一种信号的接收方法的示意图；
图12为根据一些实施例的另一种信号的接收方法的示意图；
图13为根据一些实施例的又一种信号的接收方法的示意图；
图14为根据一些实施例的又一种信号的接收方法的示意图；
图15为根据一些实施例的一种信号的发送装置的结构示意图；
图16为根据一些实施例的一种信号的接收装置的结构示意图；
图17为根据一些实施例的一种通信节点的结构示意图。
具体实施方式
为使本领域的技术人员更好地理解本公开实施例的技术方案，下面将结合本公开中的附图，对本公开中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
需要说明的是，在本公开中，“示例性地”或者“例如”等词用于表示作例子、例证或说明。本公开中被描述为“示例性地”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性地”或者“例如”等词旨在以具体方式呈现相关概念。
以下，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个特征。
在本公开的描述中，除非另有说明，“/”表示“或”的意思，例如，A/B可以表示A或B。本文中的“和/或”仅仅是一种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：仅A，仅B，以及A和B。此外，“至少一个”是指一个或多个，“多个”是指两个或两个以上。
随着信息产业的快速发展，无源物联网的应用也越来越广泛。作为新一代信息技术的高度集成和综合运用，无源物联网具有渗透性强、带动作用大、综合效益好的特点，是继计算机、互联网、移动通信网之后信息产业发展的又一推动者。在基于无源物联网的通信过程中，为提高接收数据的信噪比，以扩展通信范围或提高通信质量，有时需要采用数据重复传输的方式发送信息。此外，为提高传输效率，节省时域资源，有时还需要采用多个数据序列连续调度的方式发送信息。
在一些技术中，通常基于固定的帧结构信号发送或接收信息。下面示例性地给出了这些技术中的一种帧结构信号示意图。参照图1，图1示出了一些技术中的一种帧结构信号，帧结构信号在时域上依次包括：前导码、目的地址、源地址、类型、可变长度的数据部分，以及帧差错校验序列(Frame Check Sequence，FCS)；图1中的前导码用于实现时钟同步和/或指示帧结构信号的开始，图1中的类型用于指示帧结构信号的数据字段的协议类型。可以理解的是，一些技术中还存在其他的帧结构信号形式，可参考相关技术的描述，这里不再一一列举。
上述技术中的帧结构信号不能支持数据重复传输或多个数据序列的连续调度。因此，本公开一些实施例提供的一种信号的发送方法，该方法包括：发送端发送帧结构信号；帧结构信号包括以下一项或多项：前导序列、分隔符、数据序列、控制信息，以及结束符。
在本公开一些实施例提供的信号的发送方法中，通过对帧结构信号的格式进行改进，以使得接收端在接收到帧结构信号之后能够获知数据序列的重复传输次数或者数 据序列的个数，从而使得接收端和发送端之间的通信能够支持数据的重复传输或者多个数据序列的调度，以提高通信可靠性。
下面对本公开一些实施例所提供的技术方案的应用场景作详细介绍。
本公开一些实施例提供的信号发送方法和信号接收方法，可以应用于支持无源物联网的数据传输的反向散射通信系统，该反向散射通信系统可以应用于多种通信制式的系统。例如，反向散射通信系统可以适用的系统包括但不限于长期演进(long term evolution，LTE)系统、基于LTE演进的各种版本、第五代(5th generation，5G)系统、以及新空口(new radio，NR)等下一代通信系统中。此外，本公开一些实施例所提供的信号发送方法和信号接收方法，还可以适用于面向未来的通信技术等。
图2为根据一些实施例的一种反向散射通信系统的结构示意图。为了更清楚地说明方案，可以参考图2所示的反向散射系统。如图2所示，反向散射系统100可以包括无源设备101、无线射频设备102和网络设备103。
无源设备101和无线射频设备102之间存在通信连接，无线射频设备102和网络设备103之间存在通信连接。在一些实施例中，无源设备101和网络设备103之间也存在通信连接。
无源设备101、无线射频设备102和网络设备103可以独立部署；或者，无线射频设备102与网络设备103可以合并部署，例如可以将无线射频设备102部署在网络设备103中，本公开对此不作具体限制。
在一些实施例中，无源设备101为无源物联网中的终端设备或者具有终端设备的功能的设备。在一些实施例中，无源设备101可以接收来自无线射频设备102的信息。在一些实施例中，无源设备101可以向网络设备103反射来自无线射频设备102的信息。无源设备101也可以被称为反射器、反向散射终端(backscatter terminal)、反射终端、半有源设备(semi-passive device)、散射信号设备(ambient signal device)、标签(Tag)或标签设备等。应用在本公开实施例中，用于实现无源设备的功能的装置可以是无源设备101，也可以是能够支持无源设备实现该功能的装置，例如芯片系统。本公开实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。本公开的实施例对无源设备101所采用的具体设备形态不做限定。
在一些实施例中，无线射频设备102是可以产生高频率载波信号的设备。在一些实施例中，无线射频设备102可以向无源设备101发送信息，例如，可以向无源设备101提供载波信号。在一些实施例中，无线射频设备102可以获取网络设备103发送的信息。无线射频设备102也可以称为射频设备、辅助设备、辅助装置、激励器、激励源、射频源、询问器(interrogator)、或读写器(reader)等。应用在本公开实施例中，用于实现无线射频设备的功能的装置可以是无线射频设备102，也可以是能够支持无线射频设备102实现该功能的装置，例如芯片系统。本公开的实施例对无线射频设备102所采用的具体设备形态不做限定。
示例性地，无线射频设备可以是用户设备(user equipment，UE)。UE可以是一种具有无线收发功能的设备，其可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。UE包括具 有无线通信功能的手持式设备、车载设备、可穿戴设备或计算设备。示例性地，UE可以是手机(mobile phone)、平板电脑或带无线收发功能的电脑。UE还可以称为终端或终端设备，该终端设备还可以是虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制中的无线终端、无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、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。
在一些实施例中，网络设备103也可以称为接收器、接收机或接收设备等。网络设备103可以包括基站；基站可能有多种形式，比如宏基站、微基站、中继站和接入点等；基站可以是LTE系统中的基站，也可以是NR系统中的基站，还可以是未来通信系统中的基站。应用在本公开实施例中，用于实现网络设备的功能的装置可以是网络设备，也可以是能够支持网络设备实现该功能的装置，例如芯片系统。在本公开实施例中，以用于实现网络设备的功能的装置是网络设备为例，描述本公开实施例提供的技术方案。
可以理解的是，本公开实施例描述的系统架构以及业务场景是为了更加清楚地说明本公开实施例的技术方案，并不构成对于本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
下面将结合附图，对本公开实施例中的技术方案进行具体说明。
图3为根据一些实施例的一种信号的发送方法的示意图，该方法由发送端执行。参照图3，该方法包括S101。
S101、发送端发送帧结构信号；帧结构信号包括以下一项或多项：前导序列、分隔符、数据序列、控制信息，或者结束符。
在一些实施例中，发送端可以为反向散射系统中的无源设备、无线射频设备或者网络设备中的任一项；或者，在无线射频设备与网络设备合并部署的情况下，发送端还可以是无线射频设备与网络设备合并部署后的设备。无源设备、无线射频设备和网络设备的相关内容可以参考上述对图2的描述，这里不再赘述。可以理解的是，在实际应用中，随着用户需求的不同，发送端也会对应不同的设备，本公开对此不作限制。
在一些实施例中，数据序列由数据符号组成。在一些实施例中，数据序列的每个数据符号是一个比特信息，数据序列为一个比特序列。在一些实施例中，数据序列的每个数据符号是编码后的一个码元信息，数据序列为一个编码后的码元序列。在一些实施例中，数据序列的每个数据符号可以是调制后的调制符号，数据序列为一个调制符号序列。可以理解的是，数据序列中的数据符号还可以是其他的数据形式，本公开实施例对此不作具体限制。
在一些实施例中，分隔符包含一段持续高电平信号和/或持续低电平信号。
例如，分隔符为一段持续高电平信号。
又例如，分隔符为一段持续低电平信号。
又例如，分隔符包含一个数据符号和一段持续高电平信号。
又例如，分隔符包含一个数据符号和一段持续低电平信号。
又例如，分隔符包含一个短时低电平和一段持续高电平信号。短时低电平的时长小 于持续高电平信号的时长。
又例如，分隔符包含一个短时高电平和一段持续低电平信号。短时高电平信号的时长小于持续低电平信号的时长。
可以理解的是，分隔符还可以是其他形式的包含一段持续高电平信号和/或持续低电平信号的数据，本公开对分隔符的形式不作限制。
在一些实施例中，在分隔符包含一段持续高电平信号的情形下，分隔符包含的持续高电平信号的时长大于一个数据符号的时长，分隔符包含的持续高电平信号的时长小于结束符的时长。
在一些实施例中，在结束符也包含一段持续高电平信号的情况下，分隔符包含的持续高电平信号的时长小于结束符包含的持续高电平信号的时长。
在另一些实施例中，在分隔符包含一段持续低电平信号的情形下，分隔符包含的持续低电平信号的时长大于一个数据符号的时长，分隔符包含的持续低电平信号的时长小于结束符的时长。
在一些实施例中，在结束符也包含一段持续低电平信号的情况下，分隔符包含的持续低电平信号的时长小于结束符包含的持续低电平信号的时长。
在一些实施例中，帧结构信号包括前导序列；前导序列位于帧结构信号的帧头，用于辅助接收端同步接收帧结构信号。
在一些实施例中，帧结构信号包括结束符；结束符位于帧结构信号的帧尾，用于指示帧结构信号的结束。
在一些实施例中，帧结构信号可以支持数据的重复传输或多个数据序列的连续调度。
在一些实施例中，帧结构信号可以包括下文中实现方式一、实现方式二、实现方式三或者实现方式四中所示的帧结构信号中的至少一种。但并不局限于此，在帧结构信号包括前导序列、分隔符、数据序列、控制信息或者结束符中的一项或多项的情况下，该帧结构信号还可以包括除下述实现方式一至实现方式四以外的其它实现方式。为更清楚地说明本公开实施例提供的帧结构信号，下面对帧结构信号的可能的实现方式作详细介绍。
(1)实现方式一
帧结构信号包括前导序列、N个数据序列、N-1个分隔符以及一个结束符，N为大于1的整数；分隔符位于相邻的两个数据序列之间。
在一些示例中，分隔符可以用于分隔相邻的两个数据序列。
在一些示例中，分隔符可以用于确定前一数据序列结束或后一数据序列开始。
在一些示例中，帧结构信号包括N个子帧；对于N个子帧，每个子帧均包括一个数据序列。如图4中的(1)所示，第一个子帧还包括前导序列，如图4中的(2)所示，最后一个子帧还包括结束符；此外，除第一个子帧之外的其他子帧还包括一个分隔符。
示例性地，当N大于2时，如图4中的(3)所示，除第一个子帧和最后一个子帧之外的其他子帧包括一个分隔符和一个数据序列。
在一些示例中，上述N个数据序列为不同的数据序列。
示例性地，若以实现方式一所示的帧结构信号传输以下四个不同的数据序列：数据序列A、数据序列B、数据序列C，以及数据序列D，则帧结构信号例如可以实现为图5所示的形式。
参照图5，帧结构信号包括前导序列、上述四个数据序列、三个分隔符以及一个结束符；且这三个分隔符分别位于数据序列A和数据序列B之间、数据序列B和数据序列C之间、以及数据序列C和数据序列D之间。
此外，仍参照图5，帧结构信号包括四个子帧，第一个子帧包括前导序列，最后一个子帧包括结束符，第二个子帧、第三个子帧以及第四个子帧均包括一个分隔符。
(2)实现方式二
帧结构信号包括前导序列、R次重复传输的数据序列、R-1个分隔符以及一个结束符，R为大于1的整数；分隔符位于相邻两个重复传输的数据序列之间。
在一些示例中，分隔符可以用于分隔相邻的两个数据序列。
在一些示例中，分隔符可以用于确定数据序列前一次传输结束或后一次传输开始。
在一些示例中，分隔符可以用于协助后续接收端确定数据序列的重复传输次数。数据序列的重复传输次数等于检测到的分隔符数量加1。
在一些示例中，帧结构信号包括R个子帧；对于R个子帧，每个子帧均包括R次重复传输的数据序列中的一次传输的数据序列。仍如图4中的(1)所示，第一个子帧还包括前导序列，仍如图4中的(2)所示，最后一个子帧还包括结束符；此外，除第一个子帧之外的其他子帧还包括一个分隔符。
示例性地，当R大于2时，仍如图4中的(3)所示，除第一个子帧和最后一个子帧之外的其他子帧包括一个分隔符和一次传输的数据序列。
第一个子帧还包括前导序列，最后一个子帧还包括结束符，除第一个子帧之外的其他子帧还包括一个分隔符。
示例性地，若以实现方式二所示的帧结构信号四次重复传输数据序列E，则帧结构信号例如可以实现为图6所示的形式。
参照图6，帧结构信号包括前导序列、四次重复传输的数据序列E、三个分隔符以及一个结束符；且这三个分隔符分别位于相邻的两个数据序列E之间。
此外，仍参照图6，帧结构信号包括四个子帧，第一个子帧包括前导序列，最后一个子帧包括结束符，第二个子帧、第三个子帧和第四个子帧均包括一个分隔符。
(3)实现方式三
帧结构信号在时域上依次包括：前导序列、R次重复的第一个数据符号、分隔符，以及R次重复的第二个数据符号至R次重复的第S个数据符号；S为一个数据序列包含的数据符号数量。
在一些示例中，实现方式三所示的第一个数据符号、第二个数据符号至第S个数据符号为同一个数据序列中的S个数据符号。
在一些示例中，帧结构信号的帧尾还包括结束符，结束符用于指示帧结构信号的结束。
在一些示例中，数据符号的重复方式可以是对该数据符号进行简单重复，或者，数 据符号的重复方式可以是基于扩展码对该数据符号进行扩展，进而实现重复，扩展码的长度等于重复传输次数。
例如，对于数据符号1进行R次(例如，3次)简单重复，可以得到111。111即为对该数据符号进行简单重复得到的数据序列。
又例如，基于扩展码[1 1-1]对于数据符号1进行扩展，可以得到扩展后的数据[1 1 -1]。[1 1 -1]即为基于扩展码对该数据符号1进行扩展得到数据序列。扩展码的长度等于该数据符号1的重复传输次数，例如R次。例如，当数据符号1重复3次时，扩展码的长度等于3。可以理解的是，由于扩展码的长度等于3，因此数据符号1乘以扩展码时，可以理解为按照扩展码内的数据符号的规则对数据符号1进行了三次重复。
示例性地，对于数据序列001011，若以实现方式三所示的帧结构信号R次(例如3次)重复传输数据序列001011中的各个数据符号，则该帧结构信号例如可以实现为图7所示的形式。
参照图7中的(1)，若数据符号的重复方式是对该数据符号进行简单重复，则该帧结构信号在时域上依次包括：前导序列、3次重复传输的第一个数据符号(也即000)、分隔符、3次重复传输的第二个数据符号(也即000)、3次重复传输的第三个数据符号(也即111)、3次重复传输的第四个数据符号(也即000)、3次重复传输的第五个数据符号(也即111)，以及3次重复传输的第六个数据符号(也即111)。
在一些实施例中，仍参照图7中的(1)，在帧结构信号的帧尾还可以包括结束符。
参照图7中的(2)，若数据符号的重复方式是基于扩展码对该数据符号进行扩展进而实现重复，且假设扩展码为[1 0 1]时，则该帧结构信号在时域上依次包括：前导序列、3次重复传输的第一个数据符号(也即000)、分隔符、3次重复传输的第二个数据符号(也即000)、3次重复传输的第三个数据符号(也即101)、3次重复传输的第四个数据符号(也即000)、3次重复传输的第五个数据符号(也即101)，以及3次重复传输的第六个数据符号(也即101)。
在一些实施例中，仍参照图7中的(2)，在帧结构信号的帧尾还可以包括结束符。
(4)实现方式四
帧结构信号在时域上依次包括前导序列、控制信息、分隔符以及M个数据序列；M为大于或等于1的整数。
为便于理解，图8示出了实现方式四所示的一种帧结构信号的结构示意图。
在一些示例中，控制信息为单次传输的控制信息，或者多次重复传输的控制信息。
在一些示例中，M个数据序列为单次传输的M个数据序列，或者多次重复传输的M个数据序列。
示例性地，若M个数据序列为单次传输的M个数据序列。以实现方式四所示的帧结构信号单次传输M个数据序列时，帧结构信号在时域上依次包括：前导序列、控制信息、分隔符以及单次传输的M个数据序列。
例如，M个数据序列为以下三个数据序列：数据序列110、数据序列111、以及数据序列000，则实现方式四所示的帧结构信号例如实现为图9中的(1)所示的帧结构信号的形式。
示例性地，若M个数据序列为多次(例如R次)重复传输的M个数据序列，则实现方式四所示的帧结构信号中的重复方式包括以下重复方式一、重复方式二或重复方式三中的一项或多项。
重复方式一、以数据序列整体为单位进行重复并发送。
当M等于1时，假设M个数据序列为1个数据序列F，则以实现方式四所示的帧结构信号R次重复传输数据序列F时，帧结构信号时域上依次为前导序列、控制信息、分隔符、第1次传输的数据序列F、和第2次重复传输的数据序列F至第R次传输的数据序列F。
当M为大于1的整数时，重复方式一可以具体实现为：以M个数据序列整体为单位进行重复并发送；或者，以M个数据序列中的各个数据序列整体为单位进行重复并发送。
例如，以M个数据序列整体为单位进行重复并发送时，假设以实现方式四所示的帧结构信号重复3次传输以下三个数据序列：数据序列110、数据序列111、以及数据序列000为例，实现方式四所示的帧结构信号可以具体实现为图9中的(2)所示的帧结构信号的形式。可以看出，以三个数据序列整体110111000为单位重复了三次，进而实现了数据序列的重复传输。
又例如，若以M个数据序列中的各个数据序列整体为单位进行重复并发送时，假设以实现方式四所示的帧结构信号重复3次传输以下三个数据序列：数据序列110、数据序列111、以及数据序列000为例，实现方式四所示的帧结构信号可以具体实现为图9中的(3)所示的帧结构信号的形式。可以看出，帧结构信号在时域上以数据序列110为单位重复了3次后，接着以数据序列111为单位重复了3次，最后以数据序列000为单位重复了3次，进而实现了数据序列的重复传输。
重复方式二、以数据序列包含的数据符号为单位进行重复并发送。
当M等于1时，假设M个数据序列为1个数据序列F，则以实现方式四所示的帧结构信号R次重复传输数据序列F时，以数据序列F包含的每个数据符号为单位进行重复并发送。
例如，数据序列F包含S个数据符号，那么，实现方式四所示的帧结构信号R次重复传输数据序列F时，对应的帧结构信号在时域上依次包括：前导序列、控制信息、分隔符、R次重复传输的第1个数据符号，R次重复传输的第2个数据符号，一直到R次重复传输的第S个数据符号。
当M大于1时，以M个数据序列整体包含的数据符号为单位进行重复并发送；或者，以M个数据序列中的各个数据序列包含的数据符号为单位进行重复发送。但需要说明的是，不管以M个数据序列整体包含的数据符号为单位进行重复并发送，还是以M个数据序列中的各个数据序列包含的数据符号为单位进行重复发送，实质上重复的效果是一致的。因此，下面仅示出以M个数据序列中的各个数据序列包含的数据符号为单位进行重复并发送的方式。
例如，假设以实现方式四所示的帧结构信号重复3次传输以下三个数据序列：数据序列110、数据序列111、以及数据序列000，实现方式四所示的帧结构信号例如可以 实现为图9中的(4)所示的帧结构信号的形式。可以看出，将数据序列110、数据序列111、以及数据序列000中的各个数据符号各自重复了3次，进而实现了数据序列的重复传输。
重复方式三、基于扩展码，对数据序列进行重复并发送。
当M等于1时，假设M个数据序列包括1个数据序列F，则以实现方式四所示的帧结构信号R次重复传输数据序列F时，将数据序列F中的每个数据符号分别乘以扩展码后，进行发送。扩展码的长度为扩展码包括的数据元素的个数，扩展码的长度等于重复传输次数R。
例如，数据序列F包含S个数据符号，那么，实现方式四所示的帧结构信号R次重复传输数据序列F时，对应的帧结构信号在时域上依次包括：前导序列、控制信息、分隔符、扩展码与第1个数据符号相乘后得到的数据序列，扩展码与第2个数据符号相乘后得到的数据序列，一直到扩展码与第S个数据符号相乘后得到的数据序列。
当M大于1时，将M个数据序列整体包含的各个数据符号分别乘以扩展码后进行发送；或者，将M个数据序列中的各个数据序列包含的各个数据符号分别乘以扩展码后进行发送。但需要说明的是，不管将M个数据序列整体包含的各个数据符号分别乘以扩展码后进行发送，还是将M个数据序列中的各个数据序列包含的各个数据符号分别乘以扩展码后进行发送，实质上重复的效果是一致的。因此，下面仅示出将M个数据序列中的各个数据序列包含的各个数据符号分别乘以扩展码后进行发送的方式。
例如，假设以实现方式四所示的帧结构信号重复3次传输以下三个数据序列：数据序列110、数据序列111、以及数据序列000，若扩展码为[1 0 1]，实现方式四所示的帧结构信号例如可以实现为图9中的(5)所示的帧结构信号的形式。可以看出，将数据序列110、数据序列111、以及数据序列000中的各个数据符号分别乘以[1 0 1]后进行了传输，使得数据符号1扩展为101，数据符号0扩展为000，进而实现了数据序列的重复传输。
类似地，若控制信息为多次重复传输的控制信息，则实现方式四所示的帧结构信号中对控制信息的重复方式包括：以控制信息整体为单位进行重复并发送；或者，以控制信息包含的数据符号为单位进行重复并发送；或者，基于扩展码对控制信息进行重复并发送，例如将控制信息中的各个数据符号分别乘以扩展码后进行发送。需要说明的是，控制信息的重复方式可以参考上述数据序列的重复方式(例如重复方式一、重复方式二和重复方式三)的描述，这里不再赘述。
可以理解的是，上述示例中的数据序列长度仅为示例，为便于本领域技术人员阅读方案因而采用了较短的数据序列长度，这不应该构成对本公开实施例所示的技术方案的限制，本公开对数据序列的长度不作具体限制。
在一些示例中，实现方式四所示的帧结构信号还可以包括结束符(如图8中的虚线框所示)，结束符位于帧结构信号的帧尾，用于指示帧结构信号的结束。
在一些示例中，分隔符位于控制信息和M个数据序列之间，用于分隔控制信息和M个数据序列。
在一些示例中，分隔符还用于指示控制信息长度和/或控制信息重复传输次数。控 制信息长度为单次传输的控制信息长度。
在一些示例中，分隔符还可以便于后续接收端确定控制信息的结束时间，进而确定控制信息的总长度。
在一些实施例中，在单次传输的控制信息长度为固定长度的情况下，分隔符可用于基于控制信息的总长度和前述固定长度确定控制信息重复传输的次数。
此外，在控制信息为无重复传输(即单次传输)的情况下，分隔符可以用于确定单次传输的控制信息长度。可以理解的是，在单次传输的情况下，控制信息的总长度即为单次传输的控制信息长度。
在一些示例中，控制信息的总长度等于单次传输的控制信息长度与控制信息重复传输的次数的乘积；其中，单次传输的控制信息长度为单次传输的控制信息包含的数据符号数量。
在一些示例中，每一种控制信息总长度对应一个单次传输的控制信息长度和一个控制信息重复传输的次数。
示例性地，控制信息的总长度Ci,j，对应一个单次传输的控制信息长度Pi和一个控制信息重复传输的次数Qj；i为控制信息长度的索引、j为控制信息重复传输次数的索引，i、j为大于或等于1的整数。
此外，控制信息长度Pi包括x种可选的长度配置，例如包括：P1、P2、...、Px；控制信息重复传输次数Qj包含y种可选的重复传输次数配置，例如包括Q1、Q2、...、Qy；x和y均为正整数；则控制信息的总长度Ci,j包含x×y种可选的总长度配置，且控制信息总长度Ci,j＝Pi×Qj。
例如，控制信息长度包含2种可选的长度配置，即P1、P2；控制信息重复传输次数包含8种可选的重复传输次数配置，包括Q1、Q2、...、Q8。那么，控制信息总长度C包含16种可选的长度配置，分别为P1×Q1、P2×Q1、P1×Q2、P2×Q2、...、P1×Q8、P2×Q8。
进而，可以通过调整针对单次传输的控制信息长度Pi的长度配置，和针对控制信息重复传输次数Qj的重复传输次数配置，使控制信息的总长度Ci,j包含的x×y种可选的总长度配置互不相同。基于这种配置，使得后续接收端可以根据控制信息的总长度Ci,j，确定与Ci,j的对应Pi和Qj。
在另一些示例中，分隔符和前导序列还用于联合指示控制信息长度和/或控制信息重复传输次数。
在一些示例中，控制信息用于指示数据序列的相关信息。示例性地，控制信息用于指示以下指示信息中的一项或多项：数据序列长度、数据序列个数、重复传输次数、调制方式，或者码率；数据序列长度为数据序列包含的数据符号数量。
下面在上述实现方式一、实现方式二、实现方式三、以及实现方式四的基础上，对帧结构信号的详细内容作进一步介绍。
在一些实施例中，前导序列还用于指示帧结构信号为上行帧结构信号还是下行帧结构信号。
在另一些实施例中，前导序列还用于指示帧结构信号的实现方式，例如上述帧结构信号的实现方式一、实现方式二、实现方式三或者实现方式四。
在一些实施例中，在帧结构信号包括前导序列和数据序列的情况下，帧结构信号的前导序列还用于指示数据序列是广播数据还是单播数据。
在一些实施例中，在前导序列指示数据序列为单播数据的情形下，帧结构信号包括接收端标识以及指令索引；且在帧结构信号中，接收端标识位于指令索引之前，即接收端标识对应的比特位高于指令索引对应的比特位。指令索引用于在接收端标识匹配时指示接收端执行对应指令。
在一些实施例中，分隔符还用于指示以下帧结构信号的传输配置的一项或多项：调制编码方式、码率、数据序列长度、控制信息长度、数据序列个数，或者重复传输次数。
在分隔符指示帧结构信号的传输配置的情况下，帧结构信号的传输配置中的每一种情况对应一个分隔符索引。
在一些示例中，不同的帧结构信号的传输配置的情况可以对应相同的分隔符索引。
在另一些示例中，不同的帧结构信号的传输配置的情况对应不同的分隔符索引。
示例性地，在分隔符指示码率时，每一种码率对应一个分隔符索引。可以理解的是，上述码率还可以被替换为传输配置(例如调制编码方式、数据序列长度、控制信息长度、数据序列个数，或者重复传输次数)中的任一项或多项的组合，例如，在分隔符指示数据序列长度和控制信息长度时，每一种数据序列长度和控制信息长度的配置情况对应一个分隔符索引。本公开对此不作具体限制。
在另一些实施例中，前导序列和分隔符还用于联合指示以下帧结构信号的传输配置的一项或多项：调制编码方式、码率、数据序列长度、控制信息长度、数据序列个数，或者重复传输次数。
在一些示例中，分隔符索引可以是基于分隔符的格式信号确定的。例如，分隔符包括H种(H为正整数)格式信号，且分隔符的每种格式信号对应不同的分隔符索引。类似地，前导序列索引可以是基于前导序列的格式信号确定的。例如，前导序列包括K种(K为正整数)格式信号，且前导序列的每种格式信号对应不同的前导序列索引。
在一些示例中，在前导序列和分隔符联合指示帧结构信号的传输配置的情况下，帧结构信号的传输配置中的不同情况可以对应相同的分隔符索引和前导序列索引的组合。
在另一些示例中，在前导序列和分隔符联合指示帧结构信号的传输配置的情况下，帧结构信号的传输配置中的每一种情况对应一种分隔符索引和前导序列索引的组合。
示例性地，在前导序列和分隔符联合指示码率时，每一种码率对应一种分隔符索引和前导序列索引的组合。可以理解的是，上述码率还可以被替换为传输配置(例如调制编码方式、数据序列长度、控制信息长度、数据序列个数，或者重复传输次数)中的任一项或多项的组合，例如，在前导序列和分隔符联合指示数据序列长度和控制信息长度时，每一种数据序列长度和控制信息长度的配置情况对应一种分隔符索引和前导序列索引的组合。本公开对此不作具体限制。
在一些示例中，分隔符包括H种分隔符索引，前导序列包括K种前导序列索引，K、H为正整数，因此，存在K×H种分隔符索引和前导序列索引的组合。
在一些实施例中，一种分隔符索引和前导序列索引的组合可以指示一种传输配置的情况，每种传输配置的情况对应一种分隔符索引和前导序列索引的组合{k_num， h_num}；k_num为前导序列索引，且k_num为小于K的非负整数(例如，0、1……K-1)，h_num为前分隔符索引，且h_num为小于H的非负整数(例如，0、1……H-1)。
可以看出，上述K×H种分隔符索引和前导序列索引的组合可以指示最大K×H种传输配置的情况。
示例性地，若不同的分隔符索引和前导序列索引的组合对应不同的帧结构信号的传输配置的情况，则上述K×H种分隔符索引和前导序列索引的组合可以指示最大K×H种传输配置的情况。
或者，若存在不同的分隔符索引和前导序列索引的组合对应相同的帧结构信号的传输配置的情况，则上述K×H种分隔符索引和前导序列索引的组合可以指示的传输配置的情况小于K×H种。
以下表1中示例性地给出了分隔符索引和前导序列索引的组合的取值情况{k_num，h_num}与传输配置的对应关系。
表1
参照表1，存在可选方式1和可选方式2这两种对应关系，接收端采用其中一种方式的对应关系即可，本公开对此不作具体限制。
以上为对本公开实施例提供的帧结构信号可能的一些实现方式的介绍，以下不再赘述。
在一些实施例中，上述S101例如可以实现为：发送端发送默认的帧结构信号。示例性地，帧结构信号可以是预先与接收端约定的默认使用的帧结构信号。
例如，发送端预先与接收端约定以实现方式一中所示的帧结构信号为默认的帧结构信号，并向接收端发送实现方式一中所示的帧结构信号。可以理解的是，上述实现方式一种所示的帧结构信号还可以被替换为实现方式二、实现方式三或实现方式四中所示的帧结构信号，本公开实施例对此不作具体限制。
在另一些实施例中，上述S101例如可以实现为：发送端基于高层信令，从预设的至少一个帧结构信号中选出待发送的帧结构信号，并发送该待发送的帧结构信号。高层信令用于指示发送端使用的帧结构信号。
在又一些实施例中，上述S101例如可以实现为：发送端基于待发送的数据的内容，从预设的至少一个帧结构信号中选出待发送的帧结构信号，并发送该待发送的帧结构信号。
示例性地，若待发送的数据的内容包括控制信息，将实现方式四所示的帧结构信号作为待发送的帧结构信号；或者，若待发送的数据的内容包括多个不同的数据序列，则 将实现方式一所示的帧结构信号作为待发送的帧结构信号；或者，若待发送的数据的内容包括多个重复的数据序列，将实现方式二所示的帧结构信号作为待发送的帧结构信号；或者，若待发送的数据的内容包括以数据符号为单位重复传输多次的数据序列，则将实现方式三所示的帧结构信号作为待发送的帧结构信号。
可以理解的是，在本公开实施例所提供的信号的发送方法中，通过对帧结构信号的格式进行改进，以使得接收端在接收到帧结构信号之后能够获知数据序列的重复传输次数或者数据序列的个数，从而使得接收端和发送端之间的通信能够支持数据的重复传输或者多个数据序列的调度，以提高通信可靠性。
图10为根据一些实施例的一种信号的接收方法的示意图，该接收方法与图3所示的信号的发送方法相对应，由接收端执行。参照图10，该方法包括S201。
S201、接收端接收帧结构信号；帧结构信号包括以下一项或多项：前导序列、分隔符、数据序列、控制信息，或者结束符。
数据序列的数据形式，分隔符的内容(例如包含一段持续高电平信号和/或持续低电平信号)、分隔符的时长(例如分隔符包含的持续高电平信号的时长，或分隔符包含的持续低电平信号的时长)，以及帧结构信号可能的实现方式(例如实现方式一、实现方式二、实现方式三以及实现方式四)，在描述上述接收端的方法时已作详细介绍，这里不再赘述。
在一些实施例中，接收端可以为反向散射系统中的无源设备、无线射频设备或者网络设备中的任一项；或者，在无线射频设备与网络设备合并部署的情况下，接收端还可以是无线射频设备与网络设备合并部署后的设备。无源设备、无线射频设备和网络设备的相关内容可以参考上述对图2的描述，这里不再赘述。可以理解的是，在实际应用中，随着用户需求的不同，接收端也会对应不同的设备，本公开对此不作限制。
在一些实施例中，在帧结构信号包括前导序列和数据序列的情况下，帧结构信号的前导序列可以用于指示数据序列是广播数据还是单播数据。且在前导序列指示数据序列为单播数据的情形下，数据序列包括接收端标识以及指令索引，且在数据序列中，接收端标识位于指令索引之前。指令索引用于在接收端标识匹配时指示接收端执行对应指令。
在一些实施例中，接收端接收帧结构信号时，在接收端本身的识别码与帧结构信号中的接收端标识不一致时，接收端确定帧结构信号的信息无效，或者放弃对帧结构信号继续译码；或者，在接收端本身的识别码与帧结构信号中的接收端标识一致时，接收端根据帧结构信号中的指令索引，执行与该指令索引对应的操作。
在一些实施例中，如图11所示，在S201之后，上述的接收方法还包括S202。
S202、根据第一符号的时长来确定分隔符或结束符。
第一符号为持续低电平信号或持续高电平信号。
在一些示例中，S202实现为：若第一符号的时长大于第一时长阈值，且小于第二时长阈值，则确定第一符号属于分隔符；或者，若第一符号的时长大于第三时长阈值，则确定第一符号属于结束符；第一时长阈值小于第二时长阈值，第二时长阈值小于或等于第三时长阈值。
在一些实施例中，第一时长阈值大于或等于一个数据符号的时长。
在一些实施例中，分隔符用于指示以下帧结构信号的传输配置的一项或多项：调制编码方式、码率、数据序列长度、控制信息长度、数据序列个数，或者重复传输次数。
在一些实施例中，前导序列和分隔符用于联合指示以下帧结构信号的传输配置的一项或多项：调制编码方式、码率、数据序列长度、控制信息长度、数据序列个数，或者重复传输次数。
基于此，在确定分隔符以后，接收端还可以根据分隔符所指示的传输配置，或，前导序列和分隔符联合指示的传输配置对帧结构信号进行译码。
在一些实施例中，若接收端接收到的帧结构信号为上述实现方式一或实现方式二所示的帧结构信号，则如图12所示，在S202之后，上述的接收方法还包括S203a。
S203a、根据帧结构信号中的分隔符数量，确定数据序列的重复传输次数。
数据序列的重复传输次数等于分隔符数量加1后的数值。
在一些实施例中，若接收端接收到的帧结构信号为上述实现方式三所示的帧结构信号，则如图13所示，在S202之后，上述的接收方法还包括S2031b至S2032b。
S2031b、根据分隔符，确定数据序列中第一个数据符号R次重复传输的总时长T。
S2032b、基于第一个数据符号R次重复传输的总时长T，确定数据序列的重复传输次数R。
重复传输次数R等于第一个数据符号R次重复传输的总时长T与一个数据符号的时长的商。
在一些实施例中，若接收端接收到的帧结构信号为上述实现方式四所示的帧结构信号，则如图14所示，在S202之后，上述的接收方法还包括S203c。
S203c、根据分隔符，确定控制信息的总长度。
示例性地，仍参照图8所示的帧结构信号的结构示意图，可以看出，控制信息位于前导序列和分隔符之间，因而接收端在确定分隔符后，可以基于前导序列和分隔符之间的数据长度确定控制信息的总长度。
在一些实施例中，仍如图14所示，在S203c以后，上述的接收方法还可以包括S2041、S2042、或S2043。
S2041、根据控制信息的总长度，确定控制信息的总长度相对应的单次传输的控制信息长度和控制信息重复传输次数。
在一些示例中，控制信息长度包括x中可选的长度配置，例如包括：P1、P2、...、Px；控制信息重复传输次数包含y种可选的重复传输次数配置，例如包括Q1、Q2、...、Qy；x和y均为正整数；控制信息的总长度包含x×y种可选的总长度配置。此外，控制信息的总长度的每种配置情况，对应一种单次传输的控制信息长度和控制信息重复传输次数的配置情况。因而，可以根据控制信息的总长度，确定控制信息的总长度相对应的单次传输的控制信息长度和控制信息重复传输次数。
S2042、在控制信息为单次传输的情况下，根据控制信息的总长度，确定单次传输的控制信息长度。
单次传输的控制信息长度等于控制信息的总长度。
S2043、在单次传输的控制信息长度为一个固定值的情况下，根据控制信息的总长度，确定控制信息的重复传输次数。
控制信息的重复传输次数等于控制信息的总长度除以单次传输的控制信息长度得到的商。
在一些示例中，控制信息用于指示数据序列的相关信息。示例性地，控制信息用于指示以下指示信息中的一项或多项：数据序列长度、数据序列个数、重复传输次数、调制方式，或者码率；数据序列长度为数据序列包含的数据符号数量。
在一些实施例中，在确定单次传输的控制信息长度和控制信息的重复传输次数后，接收端可以从帧结构信号中准确读取出控制信息，进而基于控制信息对数据序列进行译码。
可以理解的是，在本公开实施例所提供的信号的接收方法中，通过对帧结构信号的格式进行改进，以使得接收端在接收到帧结构信号之后能够获知数据序列的重复传输次数或者数据序列的个数，从而使得接收端和发送端之间的通信能够支持数据的重复传输或者多个数据序列的调度，以提高通信可靠性。
上述主要从方法的角度对本公开实施例的方案进行了介绍。可以理解的是，信号的发送装置为了实现上述信号的发送方法，包含了执行各个功能相应的硬件结构和/或软件模块；此外，信号的接收装置为了实现上述信号的发送方法，包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本公开实施例描述的各示例的算法步骤，本公开能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
本公开实施例可以根据上述方法实施例对信号的发送装置或信号的接收装置进行功能模块的划分，例如，可以对应每一个功能划分每一个功能模块，也可以将两个或两个以上的功能集成在一个功能模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件的形式实现。需要说明的是，本公开实施例中对模块的划分是示意性的，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。下面以采用对应每一个功能划分每一个功能模块为例进行说明。
图15是根据本公开一些实施例的一种信号的发送装置的结构示意图，信号的发送装置可以执行上述方法实施例提供的信号的发送方法。如图15所示，信号的发送装置200包括：发送模块201。在一些实施例中，信号的发送装置200还包括生成模块202。
发送模块201，用于发送帧结构信号；帧结构信号包括以下的一项或多项：前导序列、分隔符、数据序列、控制信息，或者结束符。
生成模块202，用于生成上述帧结构信号。该帧结构信号可以为上述任一种方法实施例及其可能的实现方式中所示的帧结构信号。
在一些实施例中，帧结构信号包括前导序列、N个数据序列、N-1个分隔符以及一个结束符，N为大于1的整数；分隔符位于相邻的两个数据序列之间。
在一些实施例中，帧结构信号包括N个子帧；对于N个子帧，每个子帧均包括一 个数据序列，第一个子帧还包括前导序列，最后一个子帧还包括结束符，除第一个子帧之外的其他子帧还包括一个分隔符。
在一些实施例中，帧结构信号包括前导序列、R次重复传输的数据序列、R-1个分隔符以及一个结束符，R为大于1的整数；分隔符位于相邻两个重复传输的数据序列之间。
在一些实施例中，帧结构信号包括R个子帧；对于R个子帧，每个子帧均包括一次传输的数据序列，第一个子帧还包括前导序列，最后一个子帧还包括结束符，除第一个子帧之外的其他子帧还包括一个分隔符。
在一些实施例中，帧结构信号在时域上依次包括：前导序列、R次重复的第一个数据符号、分隔符，以及R次重复的第二个数据符号至R次重复的第S个数据符号；S为一个数据序列包含的数据符号数量。
在一些实施例中，帧结构信号在时域上依次包括前导序列、控制信息、分隔符以及M个数据序列；M为大于或等于1的整数。
在一些实施例中，对于控制信息，控制信息的总长度Ci,j对应一个单次传输的控制信息长度Pi和一个控制信息重复传输次数Qj；i为控制信息长度的索引、j为控制信息重复传输次数的索引，i、j为大于或等于1的整数。
在一些实施例中，前导序列指示数据序列是广播数据还是单播数据。
在一些实施例中，在前导序列指示数据序列为单播数据的情形下，数据序列包括接收端标识以及指令索引，且在数据序列中，接收端标识位于指令索引之前。
在一些实施例中，分隔符包含一段持续高电平信号，且分隔符包含的持续高电平信号的时长大于一个数据符号的时长，分隔符包含的持续高电平信号的时长小于结束符包含的持续高电平信号的时长；或者，分隔符包含一段持续低电平信号，且分隔符包含的持续低电平信号的时长大于一个数据符号的时长，分隔符包含的持续低电平信号的时长小于结束符包含的持续低电平信号的时长。
在一些实施例中，分隔符指示以下帧结构信号的传输配置的一项或多项：调制编码方式、码率、数据序列长度、控制信息长度、数据序列个数，或者重复传输次数；或者，前导序列和分隔符联合指示以下帧结构信号的传输配置的一项或多项：调制编码方式、码率、数据序列长度、控制信息长度、数据序列个数，或者重复传输次数。
在一些实施例中，帧结构信号的传输配置中的每一种情况对应一个分隔符索引。
在一些实施例中，帧结构信号的传输配置中的每一种情况对应一种分隔符索引和前导序列索引的组合。
此外，图16是根据本公开一些实施例的一种信号的接收装置的结构示意图，信号的接收装置可以执行上述方法实施例提供的信号的接收方法。如图16所示，信号的接收装置300包括：接收模块301。在一些实施例中，信号的接收装置300还包括处理模块302。
接收模块301，用于接收端接收帧结构信号；帧结构信号包括以下一项或多项：前导序列、分隔符、数据序列、控制信息，或者结束符。
处理模块302，用于根据第一符号的时长来确定分隔符或结束符。
在一些实施例中，第一符号为持续低电平信号或持续高电平信号；处理模块302，用于若第一符号的时长大于第一时长阈值，且小于第二时长阈值，则确定第一符号属于分隔符；或者，若第一符号的时长大于第三时长阈值，则确定第一符号属于结束符；第一时长阈值小于第二时长阈值，第二时长阈值小于或等于第三时长阈值。在一些具体示例中，第一时长阈值等于一个数据符号的时长。
在一些实施例中，处理模块302，还用于据帧结构信号中的分隔符数量，确定数据序列的重复传输次数，数据序列的重复传输次数等于分隔符数量加1后的数值。
在一些实施例中，处理模块302，还用于根据分隔符确定数据序列中第一个数据符号R次重复传输的总时长T；基于第一个数据符号R次重复传输的总时长T，确定数据序列的重复传输次数R，重复传输次数R等于第一个数据符号R次重复传输的总时长T与一个数据符号的时长的商。
在一些实施例中，处理模块302，还用于根据分隔符，确定控制信息的总长度。
在一些实施例中，处理模块302，用于根据控制信息的总长度，确定控制信息的总长度相对应的单次传输的控制信息长度和控制信息重复传输次数；或者，在控制信息为单次传输的情况下，根据控制信息的总长度，确定单次传输的控制信息长度，单次传输的控制信息长度等于控制信息的总长度；或者，在单次传输的控制信息长度为一个固定值的情况下，根据控制信息的总长度，确定控制信息的重复传输次数，控制信息的重复传输次数等于控制信息的总长度除以单次传输的控制信息长度得到的商。
在采用硬件的形式实现上述集成的模块的功能的情况下，本公开一些实施例提供了一种通信节点的结构，通信节点用于执行本公开实施例所提供的信号的发送方法或信号的接收方法。如图17所示，通信节点400包括：通信接口403、处理器402，和总线404。在一些实施例中，通信节点还可以包括存储器401。
处理器402，可以是实现或执行结合本公开实施例所描述的各种示例性的逻辑方框，模块和电路。处理器402可以是中央处理器，通用处理器，数字信号处理器，专用集成电路，现场可编程门阵列或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。处理器402可以实现或执行结合本公开实施例所描述的各种示例性的逻辑方框，模块和电路。处理器402也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等。
通信接口403，用于与其他设备通过通信网络连接。该通信网络可以是以太网，无线接入网，无线局域网(wireless local area networks，WLAN)等。
存储器401，可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。
作为一种示例，存储器401可以独立于处理器402存在，存储器401可以通过总线404与处理器402相连接，用于存储指令或者程序代码。处理器402调用并执行存 储器401中存储的指令或程序代码时，能够实现本公开实施例提供的信号的发送方法或者信号的接收方法。
作为另一种示例，存储器401也可以和处理器402集成在一起。
总线404，可以是扩展工业标准结构(extended industry standard architecture，EISA)总线等。总线404可以分为地址总线、数据总线、控制总线等。为便于表示，图17中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
本公开的一些实施例提供了一种计算机可读存储介质(例如，非暂态计算机可读存储介质)，计算机可读存储介质中存储有计算机程序指令，计算机程序指令在计算机上运行时，使得计算机执行如上述实施例中任一实施例的信号的发送方法或者信号的接收方法。
在一些示例中，计算机可以是终端设备或者具有终端设备的功能的设备；或，计算机可以是网络设备或者具有网络设备的功能的设备；或，计算机可以是无源设备、无线射频设备或者网络设备中的任一项；或，计算机可以是无线射频设备与网络设备合并部署后的设备；或，计算机可以是上述通信节点或通信节点的处理器；或，计算机可以是其他任意具有通信功能的设备，本公开对计算机的具体形式不作限制。
在一些示例中，上述计算机可读存储介质可以包括，但不限于：磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(Compact Disk，CD)、数字通用盘(Digital Versatile Disk，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(Erasable Programmable Read-Only Memory，EPROM)、卡、棒或钥匙驱动器等)。本公开描述的各种计算机可读存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读存储介质。术语“机器可读存储介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
本公开实施例提供一种包含指令的计算机程序产品，当计算机程序产品在计算机上运行时，使得计算机执行上述实施例中任一实施例的信号的发送方法或者信号的接收方法。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何在本公开揭露的技术范围内的变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应该以权利要求的保护范围为准。

Claims (24)

  1. 一种信号的发送方法，包括：
    发送端发送帧结构信号；所述帧结构信号包括以下一项或多项：前导序列、分隔符、数据序列、控制信息，或者结束符。
  2. 根据权利要求1所述的方法，其中，所述帧结构信号包括前导序列、N个数据序列、N-1个分隔符以及一个结束符，N为大于1的整数；
    其中，所述分隔符位于相邻的两个数据序列之间。
  3. 根据权利要求2所述的方法，其中，所述帧结构信号包括N个子帧；其中，对于所述N个子帧，每个子帧均包括一个数据序列，第一个子帧还包括所述前导序列，最后一个子帧还包括所述结束符，除所述第一个子帧之外的其他子帧还包括一个分隔符。
  4. 根据权利要求1所述的方法，其中，所述帧结构信号包括前导序列、R次重复传输的数据序列、R-1个分隔符以及一个结束符，R为大于1的整数；
    其中，所述分隔符位于相邻两个重复传输的数据序列之间。
  5. 根据权利要求4所述的方法，其中，所述帧结构信号包括R个子帧；其中，对于所述R个子帧，每个子帧均包括一次传输的数据序列，第一个子帧还包括所述前导序列，最后一个子帧还包括所述结束符，除所述第一个子帧之外的其他子帧还包括一个分隔符。
  6. 根据权利要求1所述的方法，其中，所述帧结构信号在时域上依次包括：前导序列、R次重复的第一个数据符号、分隔符，以及R次重复的第二个数据符号至R次重复的第S个数据符号；
    其中，S为一个数据序列包含的数据符号数量。
  7. 根据权利要求1所述的方法，其中，所述帧结构信号在时域上依次包括前导序列、控制信息、分隔符以及M个数据序列；其中，M为大于或等于1的整数。
  8. 根据权利要求7所述的方法，其中，对于所述控制信息，所述控制信息的总长度Ci,j对应一个单次传输的控制信息长度Pi和一个控制信息重复传输次数Qj；其中，i为控制信息长度的索引、j为控制信息重复传输次数的索引，i、j为大于或等于1的整数。
  9. 根据权利要求1-8任一项所述的方法，其中，所述前导序列用于指示所述数据序列是广播数据还是单播数据。
  10. 根据权利要求9所述的方法，其中，在所述前导序列指示所述数据序列为单播数据的情形下，所述数据序列包括接收端标识以及指令索引，且在所述数据序列中，所述接收端标识位于所述指令索引之前。
  11. 根据权利要求1-8任一项所述的方法，其中，
    所述分隔符包含一段持续高电平信号，且所述分隔符包含的持续高电平信号的时长大于一个数据符号的时长，所述分隔符包含的持续高电平信号的时长小于所述结束符包含的持续高电平信号的时长；或，
    所述分隔符包含一段持续低电平信号，且所述分隔符包含的持续低电平信号的时长大于一个数据符号的时长，所述分隔符包含的持续低电平信号的时长小于所述结束符包含的持续低电平信号的时长。
  12. 根据权利要求1-8任一项所述的方法，其中，
    所述分隔符指示以下所述帧结构信号的传输配置的一项或多项：调制编码方式、码率、数据序列长度、控制信息长度、数据序列个数，或者重复传输次数；
    或者，所述前导序列和所述分隔符联合指示以下所述帧结构信号的传输配置的一项或多项：调制编码方式、码率、数据序列长度、控制信息长度、数据序列个数，或者重复传输次数。
  13. 根据权利要求12所述的方法，其中，所述帧结构信号的传输配置中的每一种情况对应一个分隔符索引。
  14. 根据权利要求12所述的方法，其中，所述帧结构信号的传输配置中的每一种情况对应一种分隔符索引和前导序列索引的组合。
  15. 一种信号的接收方法，包括：
    接收端接收帧结构信号；所述帧结构信号包括以下一项或多项：前导序列、分隔符、数据序列、控制信息，或者结束符。
  16. 根据权利要求15所述的方法，还包括：
    根据第一符号的时长来确定所述分隔符或所述结束符。
  17. 根据权利要求16所述的方法，其中，所述第一符号为持续低电平信号或持续高电平信号；所述根据第一符号的时长来确定所述分隔符或所述结束符，包括：
    若所述第一符号的时长大于第一时长阈值，且小于第二时长阈值，则确定所述第一符号属于所述分隔符；或者，
    若所述第一符号的时长大于第三时长阈值，则确定所述第一符号属于所述结束符；
    其中，所述第一时长阈值小于所述第二时长阈值，所述第二时长阈值小于或等于所述第三时长阈值。
  18. 根据权利要求15-17任一项所述的方法，还包括：
    根据所述帧结构信号中的分隔符数量，确定所述数据序列的重复传输次数。
  19. 根据权利要求18所述的方法，其中，所述数据序列的重复传输次数等于所述分隔符数量加1后的数值。
  20. 根据权利要求15-17任一项所述的方法，还包括：
    根据所述分隔符确定所述数据序列中第一个数据符号R次重复传输的总时长T；
    基于所述第一个数据符号R次重复传输的总时长T，确定所述数据序列的重复传输次数R，所述重复传输次数R等于所述第一个数据符号R次重复传输的总时长T除以一个数据符号的时长得到的商。
  21. 根据权利要求15-17任一项所述的方法，还包括：
    根据所述分隔符，确定控制信息的总长度。
  22. 根据权利要求21所述的方法，还包括：
    根据所述控制信息的总长度，确定所述控制信息的总长度相对应的单次传输的控制信息长度和控制信息重复传输次数；或，
    在所述控制信息为单次传输的情况下，根据控制信息的总长度，确定单次传输的控制信息长度，所述单次传输的控制信息长度等于所述控制信息的总长度；或，
    在所述单次传输的控制信息长度为一个固定值的情况下，根据控制信息的总长度，确定控制信息的重复传输次数，所述控制信息的重复传输次数等于所述控制信息的总长度除以所述单次传输的控制信息长度得到的商。
  23. 一种通信节点，包括：处理器和用于存储所述处理器可执行指令的存储器；
    其中，所述处理器被配置为执行所述指令，使得所述通信节点执行如权利要求1-14中任一项所述的信号的发送方法，和/或执行如权利要求15-22中任一项所述的信号的接收方法。
  24. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机指令，当所述计算机指令在通信节点上运行时，使得所述通信节点执行如权利要求1-14中任一项所述的信号的发送方法，和/或执行如权利要求15-22中任一项所述的信号的接收方法。
PCT/CN2023/113371 2022-10-25 2023-08-16 信号的发送、接收方法及通信节点、存储介质 WO2024087818A1 (zh)

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