WO2024032607A1 - Procédé et appareil de détermination de structure de trame, et dispositif de communication et support de stockage - Google Patents

Procédé et appareil de détermination de structure de trame, et dispositif de communication et support de stockage Download PDF

Info

Publication number
WO2024032607A1
WO2024032607A1 PCT/CN2023/111735 CN2023111735W WO2024032607A1 WO 2024032607 A1 WO2024032607 A1 WO 2024032607A1 CN 2023111735 W CN2023111735 W CN 2023111735W WO 2024032607 A1 WO2024032607 A1 WO 2024032607A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
value
symbol period
amplitude
delay
Prior art date
Application number
PCT/CN2023/111735
Other languages
English (en)
Chinese (zh)
Inventor
黄伟
谭俊杰
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2024032607A1 publication Critical patent/WO2024032607A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • 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 application belongs to the field of communication technology, and specifically relates to a frame structure determination method, device, communication equipment and storage medium.
  • the system side when determining the frame structure of data transmission, the system side can first estimate the channel delay, and then estimate the transmission performance of a frame structure with a repeated structure length based on the delay. (Specifically, it can be signal-to-noise ratio and bit error rate), and after separately estimating the transmission performance of frame structures with multiple repeat structure lengths, the optimal frame structure is determined from the frame structures with multiple repeat structure lengths.
  • Embodiments of the present application provide a frame structure determination method, device, communication equipment and storage medium, which can solve the problem of excessive system training overhead.
  • a frame structure determination method includes: a target device configures and sends target configuration information; the target configuration information is used by the first device to calculate the first parameter carried in the first signal, and the first signal is based on The signal generated by the second signal and the third signal, the third signal is a baseband signal that modulates the second signal, and the first parameter is the parameter of the third signal; the target device is based on the channel delay information reported by the first device and the first Parameter, calculate the second parameter corresponding to each frame structure in P types of frame structures, P is a positive integer; the target device determines the target frame structure used for data transmission from the P types of frame structures based on the P second parameters.
  • a frame structure determination device in a second aspect, includes a configuration module, a calculation module and a determination module; the configuration module is used to configure and send target configuration information; the target configuration information is used in the first device to calculate the first signal.
  • the first parameter carried, the first signal is a signal generated based on the second signal and the third signal, the third signal is a baseband signal that modulates the second signal, and the first parameter is the parameter of the third signal;
  • the calculation module uses Calculate the second parameters corresponding to each of the P frame structures according to the channel delay information and the first parameters reported by the first device, where P is a positive integer; the determination module is used to calculate the P parameters calculated by the calculation module
  • the second parameter determines the target frame structure used for data transmission from P types of frame structures.
  • a frame structure determination method includes: a first device receiving a first signal sent by a third device according to the first configuration information, and receiving a first signal sent by the second device according to the second configuration information. Two signals; the first device demodulates the first signal according to the first configuration information and the third configuration information to obtain the data of the third signal; the first device calculates the first parameter of the third signal according to the data of the third signal ; The first device obtains the channel delay information, and reports the channel delay information and the first parameter to the target device; wherein the first configuration information is used to configure the signal parameters of the first signal, and the second configuration information is used to configure the second signal.
  • the signal parameters of the signal, the third configuration information is used to configure the signal parameters of the third signal; the first signal, the second signal and the third signal are all used to: obtain the first parameter, or obtain channel delay information.
  • a frame structure determination device which device includes a receiving module, a demodulation module, a calculation module, and a processing module; the receiving module is configured to receive a first signal sent by a third device according to the first configuration information.
  • the demodulation module is used to demodulate the first signal according to the first configuration information and the third configuration information to obtain the data of the third signal;
  • the calculation module is used to calculate the first parameter of the third signal based on the data of the third signal demodulated by the demodulation module;
  • the processing module is used to obtain the channel delay information and report the channel delay information and the first parameter to the target device; wherein the first configuration information is used to configure the signal parameters of the first signal, the second configuration information is used to configure the signal parameters of the second signal, and the third configuration information is used to configure the signal parameters of the third signal; first The signal, the second signal and the third signal are all used to: obtain the first parameter or obtain channel delay information.
  • a frame structure determination method includes: the second device sends a second signal according to second configuration information, and the second configuration information is used to configure signal parameters of the second signal; wherein, the second signal consists: the first part, the second part, the third part and the fourth part; the first part and the second part satisfy: the length is the first time unit, and the data included is exactly the same; the third part and the fourth part satisfy: The length is the second time unit and includes the same data part; the length of the first time unit is different from the length of the second time unit.
  • a frame structure determination device which device includes a sending module; a sending module configured to send a second signal according to second configuration information, and the second configuration information is used to configure signal parameters of the second signal; wherein , the second signal includes: the first part, the second part, the third part and the fourth part; the first part and the second part satisfy: the length is the first time unit, And the data included are exactly the same; the third part and the fourth part meet the following requirements: the length is the second time unit, and the included data part is the same; the length of the first time unit is different from the length of the second time unit.
  • a frame structure determination method includes: the third device receives the second signal sent by the second device according to the second configuration information; the third device according to the first configuration information and the third configuration information, The second signal is modulated by the generated third signal to obtain the first signal; the third device sends the first signal according to the first configuration information; wherein the first configuration information is used to configure the signal parameters of the first signal, and the second configuration information Used to configure the signal parameters of the second signal, the third configuration information is used to configure the signal parameters of the third signal; the first signal, the second signal and the third signal are all used to: obtain the first parameter of the third signal, or obtain Channel delay information.
  • a frame structure determination device which device includes a receiving module, a modulation module and a sending module; the receiving module is used to receive the second signal sent by the second device according to the second configuration information; the modulating module is used to The second signal is modulated by the generated third signal according to the first configuration information and the third configuration information to obtain the first signal; the sending module is configured to send the first signal according to the first configuration information; wherein, the first configuration information used to configure the signal parameters of the first signal, the second configuration information is used to configure the signal parameters of the second signal, and the third configuration information is used to configure the signal parameters of the third signal; the first signal, the second signal and the third signal are all Used to: obtain the first parameter of the third signal, or obtain channel delay information.
  • a communication device in a ninth aspect, includes a processor and a memory.
  • the memory stores a program or instructions that can be run on the processor.
  • the program or instructions are implemented when executed by the processor.
  • a communication device including a processor and a communication interface, wherein the processor is used to configure and send target configuration information; the target configuration information is used by the first device to calculate the first parameter carried in the first signal.
  • the first signal is a signal generated according to the second signal and the third signal
  • the third signal is a baseband signal that modulates the second signal
  • the first parameter is the parameter of the third signal; and according to the channel time reported by the first device Delay information and the first parameter, calculate the second parameter corresponding to each frame structure in P types of frame structures, P is a positive integer; and determine the target frame used for data transmission from the P types of frame structures based on the P second parameters structure; or,
  • the communication interface is used to receive a first signal sent by a third device according to the first configuration information, and receive a second signal sent by a second device according to the second configuration information; the first device according to the first configuration information and the third device configure the information, demodulate the first signal to obtain the data of the third signal; the processor is used to calculate the first parameter of the third signal according to the data of the third signal; and obtain the channel delay information, and calculate the channel delay information.
  • the delay information and the first parameters are reported to the target device; wherein the first configuration information is used to configure the signal parameters of the first signal, the second configuration information is used to configure the signal parameters of the second signal, and the third configuration information is used to configure the third signal.
  • the signal parameters of the signal; the first signal, the second signal and the third signal are all used to: obtain the first parameter, or obtain channel delay information; or,
  • the communication interface is used to send a second signal according to the second configuration information, and the second configuration information is used to configure signal parameters of the second signal; wherein the second signal includes: a first part, a second part, a third part and The fourth part; the first part and the second part satisfy: the length is the first time unit, and the data included is the same; the third part and the fourth part satisfy: the length is the second time unit, and the data included is the same ; The length of the first time unit is different from the length of the second time unit; or,
  • the communication interface is used to receive the second signal sent by the second device according to the second configuration information; the processor is used to modulate the second signal by the generated third signal according to the first configuration information and the third configuration information, to obtain the first signal; the communication interface is also used to send the first signal according to the first configuration information; wherein the first configuration information is used to configure the signal parameters of the first signal, and the second configuration information is used to configure the signal of the second signal Parameters, the third configuration information is used to configure the signal parameters of the third signal; the first signal, the second signal and the third signal are all used to: obtain the first parameter of the third signal, or obtain channel delay information.
  • a communication system including: a target device as described in the first aspect, a first device as described in the third aspect, a second device as described in the fifth aspect, and a target device as described in the seventh aspect.
  • the third device wherein the communication system can implement the steps of the frame structure determination method as described in the first aspect, and/or implement the steps of the frame structure determination method as described in the third aspect, and/or Or, implement the steps of the frame structure determination method as described in the fifth aspect, and/or implement the steps of the frame structure determination method as described in the seventh aspect.
  • a readable storage medium In a twelfth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented. The steps of the method described in the third aspect, or the steps of implementing the method described in the fifth aspect, or the steps of the method described in the seventh aspect.
  • a chip in a thirteenth aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. Method, or implement the method as described in the third aspect, or implement the method as described in the fifth aspect, or implement the method as described in the seventh aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement as described in the first aspect method steps, or Implement the steps of the method described in the third aspect, or implement the steps of the method described in the fifth aspect, or implement the steps of the method described in the seventh aspect.
  • the target device can configure and send target configuration information; the target configuration information is used by the first device to calculate the first parameter carried in the first signal, and the first signal is generated based on the second signal and the third signal.
  • the third signal is a baseband signal that modulates the second signal, and the first parameter is the parameter of the third signal; and the target device can calculate P frame structures based on the channel delay information reported by the first device and the first parameter.
  • the second parameter corresponding to each frame structure in , P is a positive integer; and the target device can determine the target frame structure used for data transmission from P types of frame structures based on the P second parameters.
  • the target device can configure and send the target configuration information for the first device to calculate the first parameter carried in the first signal, and can calculate any arbitrary calculation based on the channel delay information and the first parameter reported by the first device.
  • the second parameter of the frame structure is used to determine the optimal frame structure for data transmission. Therefore, there is no need to estimate the channel delay first, and then estimate the transmission performance of the frame structure with different repeating structure lengths multiple times to determine the optimal frame structure. Frame structure, thus saving system overhead.
  • Figure 1 is a block diagram of a wireless communication system applicable to the embodiment of the present application.
  • Figure 2 is a schematic structural diagram of BSC equipment
  • Figure 3 is a schematic diagram of the principle of modulating signals of BSC equipment
  • FIG. 4 is a schematic diagram of the BSC system architecture
  • Figure 5 is a schematic diagram of the time domain structure of the radio frequency carrier signal
  • Figure 6 is a schematic diagram of the radio frequency carrier signal and the BSC baseband signal
  • Figure 7 is one of the flow charts of a frame structure determination method provided by an embodiment of the present application.
  • Figure 8 is the second flow chart of a frame structure determination method provided by an embodiment of the present application.
  • Figure 9 is the third flowchart of a frame structure determination method provided by an embodiment of the present application.
  • Figure 10 is a schematic diagram of a frame structure determination method provided by an embodiment of the present application.
  • Figure 11 is the fourth flowchart of a frame structure determination method provided by an embodiment of the present application.
  • Figure 12 is one of the schematic diagrams of the radio frequency carrier signal and baseband signal during the data transmission stage
  • Figure 13 is the second schematic diagram of the radio frequency carrier signal and baseband signal in the data transmission stage
  • Figure 14 is the third schematic diagram of the radio frequency carrier signal and baseband signal in the data transmission stage
  • Figure 15 is the fourth schematic diagram of the radio frequency carrier signal and baseband signal in the data transmission stage
  • Figure 16 is one of the structural schematic diagrams of a frame structure determination device provided by an embodiment of the present application.
  • Figure 17 is one of the structural schematic diagrams of a frame structure determination device provided by an embodiment of the present application.
  • Figure 18 is one of the structural schematic diagrams of a frame structure determination device provided by an embodiment of the present application.
  • Figure 19 is one of the structural schematic diagrams of a frame structure determination device provided by an embodiment of the present application.
  • Figure 20 is a schematic diagram of a communication device provided by an embodiment of the present application.
  • Figure 21 is a schematic diagram of the hardware structure when the communication device provided by the embodiment of the present application is a terminal;
  • Figure 22 is a schematic diagram of the hardware structure when the communication device provided by the embodiment of the present application is a network-side device.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a terminal 11 and a network Side device 12.
  • the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer.
  • Tablet Personal Computer Tablet Personal Computer
  • laptop computer laptop computer
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • UMPC ultra-mobile personal computer
  • UMPC mobile Internet device
  • Mobile Internet Device MID
  • AR augmented reality
  • VR virtual reality
  • robots wearable devices
  • VUE vehicle-mounted equipment
  • PUE pedestrian terminal
  • smart home home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.
  • PC personal computers
  • teller machines or self-service Terminal devices such as mobile phones
  • wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), Smart wristbands, smart clothing, etc.
  • the network side device 12 may include an access network device or a core network device, where the access network device 12 may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or Wireless access network unit.
  • the access network device 12 may include a base station, a WLAN access point or a WiFi node, etc.
  • the base station may be called a Node B, an evolved Node B (eNB), an access point, a Base Transceiver Station (BTS), a radio Base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B, Home Evolved Node B, Transmitting Receiving Point (TRP) or all
  • eNB evolved Node B
  • BTS Base Transceiver Station
  • BSS Basic Service Set
  • ESS Extended Service Set
  • Home Node B Home Evolved Node B
  • TRP Transmitting Receiving Point
  • BSC means that the BSC device uses radio frequency signals from other devices or the environment to perform signal modulation to transmit the information of the BSC device. It is a relatively typical passive IoT device.
  • Figure 2 shows a schematic structural diagram of the BSC equipment. As shown in (a) in Figure 2, the BSC sending equipment mainly includes the following main modules:
  • Antenna unit 21 used to receive radio frequency signals and control commands, and at the same time, used to send modulated backscatter signals;
  • Energy collection module or energy supply module 22 used for BSC sending equipment to collect radio frequency energy, or other energy collection, where the energy includes but is not limited to solar energy, kinetic energy, mechanical energy, thermal energy, etc.; the energy collection module or energy supply module 22 can provide power to all other modules in the BSC sending equipment. It should be noted that the energy collection module or energy supply module 22 can also be a battery energy supply module, in which case the BSC sending device is a semi-passive device;
  • Microcontroller 23 used to control baseband signal processing, energy storage or data scheduling status, switch switching, system synchronization, etc.;
  • Signal receiving module 24 used to demodulate BSC receiving equipment or other network nodes, sent control commands or data, etc.;
  • Channel coding and modulation module 25 used to perform channel coding and signal modulation under the control of the microcontroller 23, and to realize modulation by selecting different load impedances under the control of the microcontroller 23 through the selection switch;
  • Memory or sensing module 26 used to store device identification (Identity Document, ID) information, device location information or sensing data, etc.
  • future BSC transmitting equipment can even integrate tunnel diode amplifier modules, low-noise amplifier modules, etc. to improve the receiving sensitivity and transmit power of BSC transmitting equipment.
  • the BSC receiving device in a traditional radio frequency identification system is usually a reader, as shown in (b) in Figure 2.
  • the BSC receiving device mainly includes the following main modules:
  • Antenna unit 27 used to receive modulated backscattered signals
  • Backscattered signal detection module 28 used to detect the backscattered signal sent by the BSC transmitting equipment (including ASK detection, PSK detection, FSK detection or QAM detection, etc.).
  • Demodulation and decoding module 29 used to demodulate and decode the detected signal to restore the original information stream.
  • FIG. 3 shows a schematic diagram of the principle of modulating signals of BSC equipment.
  • BSC equipment can control the reflection coefficient ⁇ of the circuit by adjusting its internal impedance, thereby changing the amplitude, frequency, and phase of the incident signal S in (t). etc. to achieve signal modulation.
  • the reflection coefficient of the signal can be characterized by the following formula (1):
  • the BSC device can be a tag (i.e. Tag) in a traditional radio frequency identification system, or a passive or semi-passive Internet of Things (Passive/Semi-passive Internet of Things, Passive/Semi-passive IoT) device.
  • Tag i.e. Tag
  • the future 6G communication network needs to support massive Internet of Everything, in which the number of IoT devices will reach hundreds of billions. Its connection density will be 10-100 times higher than that of 5G, reaching a connection density of 10-100/m2. Massive IoT devices have great impact on cost and performance Huadu has presented new challenges. Cellular networking, low cost, low power consumption or even zero power consumption are the main trends in the development of IoT devices in the future. Limited by the transmission power of network nodes, two-way link attenuation, energy storage efficiency and energy storage capacity of the energy storage circuit, the receiving sensitivity of the BSC equipment, the gain of the transmitting and receiving antennas, and the influence of signal interference, the forward and reverse coverage of the BSC are faced with Big technical challenges.
  • BSC systems can be divided into Monostatic Backscatter Communication Systems (MBCSs) and Bistatic Backscatter Communication Systems (BBCSs).
  • Figure 4 shows a schematic diagram of the BSC system architecture.
  • MBCSs such as traditional radio frequency identification systems
  • BSC sending device 41 such as Tag
  • reader ie Reader
  • the reader 42 contains an electromagnetic frequency (Radio Frequency, RF) radio frequency source and a BSC receiver.
  • RF Radio Frequency
  • the RF radio frequency source is used to generate RF radio frequency signals to power the BSC transmitting device 41; the BSC transmitting device 41 passes through The modulated RF radio frequency signal, so that the BSC receiving end in the reader/writer 42 can perform signal demodulation after receiving the backscattered signal. Since the RF source and the BSC receiver are in the same device (such as the reader/writer 42), they are called MBCSs. In the MBCSs system, since the RF radio frequency signal sent from the BSC transmitting equipment will be attenuated by the round-trip signal, it will cause a double near-far effect, so the energy of the signal will be attenuated greatly, so the MBCSs system is generally used for short-distance transmission. BSC.
  • the RF radio frequency source 43, BSC transmitting device 44 and BSC receiving device 45 in BBCSs are separated, thereby avoiding the problem of large round-trip signal attenuation.
  • the performance of BBCSs can be further improved.
  • the environmental backscatter communication system is also a type of BBCSs, but the radio frequency source in the environmental backscatter communication system can be the radio frequency source in the available environment, for example, TV towers, cellular base stations, WiFi signals, Bluetooth Signal etc.
  • radio frequency carrier signal is an Orthogonal Frequency Division Multiplexing (OFDM) signal waveform scenario widely used in LTE and NR systems
  • OFDM Orthogonal Frequency Division Multiplexing
  • CP cyclic prefix
  • the guard bands in the OFDM frequency domain can also be used to eliminate interference, and the equivalent frequency of the baseband signal is moved to different guard bands for signal modulation.
  • the same design idea can also be extended to unmodulated single sine wave RF signals, etc.
  • the BSC receiving equipment needs to be based on the minimum channel transmission delay of the direct link and the backscatter cascade link. with maximum delay extension to determine the decision threshold.
  • Represents the discrete channel transmission delay from the RF source to the BSC receiving device Represents the discrete channel transmission delay from the RF source to the BSC transmitting device and the BSC transmitting device to the BSC receiving device cascade channel, f s represents the sampling rate of the signal;
  • L b [(d h1 +d h2 + ⁇ h1 + ⁇ h2 )f s ] represents the cascade from the radio frequency source to the BSC transmitting equipment and from the BSC transmitting equipment to the BSC receiving equipment.
  • the channel delay spread of the channel In addition, after obtaining the channel transmission delay and channel delay spread of each link, it can also be used to determine the frame structure of the radio frequency carrier or the symbol period of the baseband signal, etc.
  • FIG. 5 shows a schematic diagram of the time domain structure of a radio frequency carrier signal.
  • the radio frequency carrier signal s(t) sent by the radio frequency source device needs to satisfy the following time domain structure:
  • s(t) includes two time slot blocks with the same polarity and data, forming a basic time slot block (here, the time slot is only used as a time unit
  • the data length in each time slot is N
  • the cycle length is T s
  • it is random or non-random, where s(t) can be expressed as the following formula (2 ):
  • the carrier signal length N of the radio frequency carrier signal must satisfy: N+D>L;
  • the backscattered signal at this time is:
  • ⁇ is a value related to the radio frequency carrier repetition length N, the minimum channel delay D and the maximum delay spread L.
  • the existing direct link interference elimination solution uses the repetitive structure of the radio frequency signal combined with the BSC baseband signal design to achieve demodulation of the BSC modulated signal under strong direct link interference.
  • the principle is that the repeating structure of a radio frequency signal with a repeating structure is still maintained after passing through the channel. Therefore, the direct link interference can be eliminated by subtracting the two effective repeating structure signals that are maintained; and for useful backscattered signals item, after subtracting the signals of two valid repeating structures that have been maintained identically and differentially modulated by the BSC equipment, the demodulation of the BSC differential modulation signal without direct link interference can be achieved.
  • this scheme since this scheme only interferes in the amplitude dimension, the demodulation performance of this scheme is strongly related to factors such as the difference between the length of the repetitive structure and the channel delay, and the number of repetitions of the repetitive structure.
  • this scheme uses Miller for encoding, its frequency band utilization is only 1/2 compared to OOK modulation, resulting in lower frequency band utilization. If the response is improved by increasing the length of the repeating structure or the number of repetitions of the repeating structure, The effective signal-to-noise ratio of directional scattering will further reduce the frequency band utilization of the system.
  • the target device can configure and send target configuration information; the target configuration information is used by the first device to calculate the first parameter carried in the first signal, and the first signal is a signal generated based on the second signal and the third signal, the third signal is a baseband signal that modulates the second signal, the first parameter is a parameter of the third signal; and the target device can be based on the channel delay reported by the first device.
  • Information and the first parameter calculate the second parameter corresponding to each frame structure in P types of frame structures, P is a positive integer; and the target device can determine the method used for data transmission from the P types of frame structures based on the P second parameters.
  • Target frame structure the target configuration information is used by the first device to calculate the first parameter carried in the first signal
  • the first signal is a signal generated based on the second signal and the third signal
  • the third signal is a baseband signal that modulates the second signal
  • the first parameter is a parameter of the third signal
  • the target device can be based on the channel delay reported by the first device.
  • the target device can configure and send the target configuration information for the first device to calculate the first parameter carried in the first signal, and can calculate any arbitrary calculation based on the channel delay information and the first parameter reported by the first device.
  • the second parameter of the frame structure is used to determine the optimal frame structure for data transmission. Therefore, there is no need to estimate the channel delay first, and then estimate the transmission performance of the frame structure with different repeating structure lengths multiple times to determine the optimal frame structure. Frame structure, thus saving system overhead.
  • y 0 [n] y b0 [n]+y d0 [n]+w 0 [n] is the received signal of the BSC receiving equipment
  • the constructed statistical decision function is:
  • the optimal decision threshold performance is:
  • the bit error rate performance is: where ⁇ is the probability of false detection.
  • the constructed statistical decision function is:
  • the constructed statistical decision function is:
  • bit error rate performance ratio under the same number of repetitions and different repetition structure lengths is a function related to the repetition structure length ratio M/N, the minimum channel delay D, and the maximum delay spread L, therefore for time-invariant channels, That is, for a channel where the minimum channel delay and maximum delay expansion of the channel remain unchanged within a period of time, if the signal-to-noise ratio and bit error rate under two different length repeating structures are known, the minimum channel delay D, The maximum delay is extended L and the signal-to-noise ratio and bit error rate performance under any repetition structure length E are derived.
  • bit error rate performance under the same repeating structure length and different repeating structure times is a function related to the repeating structure repetition number ratio P, the minimum channel delay D, and the maximum delay spread L. Therefore, for time-invariant channels, if the signal-to-noise ratio and bit error rate under two different length repeating structures are known, the minimum channel delay D and the maximum delay spread L can be obtained, and the signal under any number of repeating structures F can be derived. noise ratio and bit error rate performance.
  • the system only needs to know the signal-to-noise ratio and bit error rate performance under two different repeating structure lengths, and then it can derive the signal-to-noise ratio and error rate under any repeating structure length and/or number of repeating structures.
  • Code rate performance and one step implementation This method performs channel delay estimation and signal-to-noise ratio estimation, which reduces the traditional step-by-step training process that requires estimating the delay first and then estimating the signal-to-noise ratio, and reduces system training overhead and training delay.
  • the system end can also flexibly configure the radio frequency carrier signal period and backscattering according to the channel environment during the data transmission stage.
  • the communication modulates the signal rate to increase the transmission rate of backscatter communication as much as possible while meeting the bit error rate performance of backscatter communication.
  • FIG. 7 shows a flow chart of the method for determining a frame structure provided by an embodiment of the present application.
  • the frame structure determination method provided by the embodiment of the present application may include the following steps 701 to 703.
  • Step 701 Configure the target device and send target configuration information.
  • the target configuration information is used by the first device to calculate the first parameter carried in the first signal.
  • the first signal is a signal generated based on the second signal and the third signal, and the third signal is the second signal.
  • the first parameter is the parameter of the third signal.
  • the target device may include any of the following: a first device, a second device, a third device, or a fourth device.
  • the first device is a BSC receiving device
  • the second device is a radio frequency source device
  • the third device is a BSC transmitting device
  • the fourth device is: in addition to the first device, the second device and the third device.
  • Network node device is a BSC receiving device
  • the first device, the second device, the third device, and the fourth device may be any possible device such as a terminal or a network side device.
  • the target device may include a first device, a second device, a third device or a fourth device
  • the target configuration information may be configured by any of the devices, thereby improving the flexibility of configuring the target configuration information. sex.
  • the target configuration information may include at least one of the following:
  • the first configuration information is used to configure signal parameters of the first signal
  • the second configuration information is used to configure signal parameters of the second signal
  • the third configuration information is used to configure signal parameters of the third signal
  • the fourth configuration information is used to configure at least one of the following: a reporting method of channel delay information, a reporting time and frequency resource of channel delay information, a carrying method of channel delay information, a reporting method of the first parameter, The reporting time and frequency resources of the first parameter and the carrying mode of the first parameter.
  • the target configuration information may be at least one of the first configuration information, the second configuration information, the third configuration information, and the fourth configuration information
  • the target device may configure different configuration information to respond accordingly. Content configuration, thereby further improving the flexibility of configuring target configuration information.
  • the signal parameters of the first signal may include at least one of the following: the reflection coefficient of the first signal, the type of the first signal, the length of the first signal, and the time-frequency resource of the first signal.
  • the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal.
  • the signal parameters of the third signal may include at least one of the following: the type of the third signal, the length of the third signal, and the time-frequency resource of the third signal.
  • the first signal may be a BSC reflection signal generated based on the second signal and the third signal.
  • the target configuration information can be enriched. configuration function.
  • the above channel delay information may be used to indicate the first target delay and the second target delay.
  • the first target delay is: the sum of the first channel transmission delay and the second channel transmission delay, and the minimum channel transmission delay among the third channel transmission delay
  • the second target delay is : The sum of the first channel delay spread and the second channel delay spread, and the maximum channel delay spread among the third channel delay spread.
  • the first channel transmission delay and the first channel delay are expanded to: the channel delay between the second device and the third device; the second channel transmission delay and the second channel delay are expanded to: The channel delay between the first device and the third device; the third channel transmission delay and the third channel delay are expanded to: the channel delay between the first device and the second device.
  • the target configuration information may be carried through any of the following: Radio Resource Control (Radio Resource Control, RRC), Medium Access Control Element (MAC-CE) , Downlink Control Information (DCI), Sidelink Control Information (SCI), and preamble sequence.
  • RRC Radio Resource Control
  • MAC-CE Medium Access Control Element
  • DCI Downlink Control Information
  • SCI Sidelink Control Information
  • the target configuration information can be carried through RRC, MAC-CE, DCI, SCI or preamble sequence, the flexibility of carrying the target configuration information can be improved.
  • the first signal is a signal generated based on the second signal and the third signal, so that the first signal can carry the first parameter of the third signal.
  • the second signal may include: a first part, a second part, a third part and a fourth part. point.
  • the first part and the second part meet the following requirements: both have a length of the first time unit and contain exactly the same data; the third part and the fourth part meet the requirements: both have a length of the second time unit and contain the same data. Parts are the same.
  • the length of the first time unit is different from the length of the second time unit.
  • both the first time unit and the second time unit may be any of the following: symbols, time slots, subframes, and frames.
  • the second signal since the second signal includes: the first part and the second part whose length is the first time unit and includes exactly the same data, and the second signal has the same length and includes the same data part
  • the third part and the fourth part can therefore perform signal modulation based on the characteristics of the second signal to calculate the first parameter.
  • Step 702 The target device calculates the second parameter corresponding to each of the P frame structures based on the channel delay information and the first parameter reported by the first device.
  • P is a positive integer.
  • the value of P may be preconfigured or predefined.
  • every two frame structures among the above-mentioned P types of frame structures satisfy the following requirements: the repeating structure lengths are different, and/or the number of repetitions is different.
  • the diversity of the calculated frame structures can be enriched to facilitate accurate selection of the optimal frame structure.
  • the first parameter may include any of the following: bit error rate, bit error rate, and signal-to-noise ratio
  • the second parameter may include any of the following: bit error rate, bit error rate, and signal-to-noise ratio. signal-to-noise ratio.
  • Step 703 The target device determines the target frame structure used for data transmission from P types of frame structures based on the P second parameters.
  • the target frame structure is the optimal frame structure adopted for data transmission.
  • the target device can configure and send the target configuration information used by the first device to calculate the first parameter carried in the first signal, and can be based on the channel timing reported by the first device, Delay information and the first parameter are used to calculate the second parameter of any frame structure and determine the optimal frame structure for data transmission. Therefore, there is no need to estimate the channel delay first and then estimate the transmission of frame structures with different repeating structure lengths multiple times. performance, the optimal frame structure can be determined, thereby saving system overhead.
  • FIG. 8 shows a flow chart of the method for determining a frame structure provided by an embodiment of the present application.
  • the frame structure determination method provided by the embodiment of the present application may include the following steps 801 to 804.
  • Step 801 The first device receives the first signal sent by the third device according to the first configuration information, and receives the second signal sent by the second device according to the second configuration information.
  • the first configuration information is used to configure the signal parameters of the first signal
  • the second configuration information is used to configure the signal parameters of the second signal
  • Step 802 The first device demodulates the first signal according to the first configuration information and the third configuration information to obtain data of the third signal.
  • the third configuration information is used to configure signal parameters of the third signal.
  • the first signal, the second signal and the third signal are all used to: obtain the first parameter, or obtain the above-mentioned channel delay information.
  • the third signal may be: a baseband signal used by the third device to perform target modulation on the second signal.
  • the target modulation is any one of the following: amplitude differential modulation, phase differential modulation, or amplitude and phase differential modulation.
  • the third signal can be: a baseband signal used by the third device to perform amplitude differential modulation, phase differential modulation, or amplitude and phase differential modulation on the second signal, different third signals can be used.
  • the second signal is modulated differently, thereby enriching the functionality of the third signal.
  • the target modulation is the above-mentioned amplitude differential modulation, and the modulation order is second order; then:
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the first amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the second Amplitude value, the amplitude value of the second half symbol period of the third signal is the third amplitude value, and the second amplitude value and the third amplitude value are different from each other;
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, then the amplitude value of the third signal is the fourth amplitude value; if the bit information indicates the second value, then the amplitude value of the first half symbol period of the third signal is the fifth amplitude value, and the amplitude value of the third signal after
  • the amplitude value of half a symbol period is the sixth amplitude value, and the fifth amplitude value and the sixth amplitude value are different from each other.
  • both the first time unit and the second time unit may be any of the following: symbols, time slots, subframes, and frames.
  • the first value is bit 0, and the second value is bit 1; or, the first value is bit 1, and the second value is bit 0.
  • the target modulation is the above-mentioned phase differential modulation
  • the modulation order is second order
  • the third signal carries bit information through the phase difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the first phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the second Phase value, the phase value of the second half symbol period of the third signal is the third phase value, and the second phase value and the third phase value are different from each other;
  • the third signal carries bit information through the phase difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the fourth phase value.
  • Five phase values, the phase value of the second half symbol period of the third signal is the sixth phase value, and the fifth phase value and the sixth phase value are different from each other.
  • the target modulation is the above-mentioned amplitude and phase differential modulation, and the modulation order is second order; then:
  • the third signal carries bit information through the amplitude and phase difference values between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the first time twice the unit; and if the bit information indicates the first value, then the amplitude value of the third signal is the first amplitude value, and the phase value of the third signal is the first phase value; if the bit information indicates the second value, then The amplitude value of the first half symbol period of the third signal is the second amplitude value, the phase value of the first half symbol period of the third signal is the second phase value, and the amplitude value of the second half symbol period of the third signal is the third amplitude. value, the phase value of the second half symbol period of the third signal is the third phase value, the second amplitude value and the third amplitude value are different from each other, and the second phase value and the third phase value are different from each other;
  • the third signal carries bit information through the amplitude and phase difference values of the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second twice the time unit; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value, and the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, Then the amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the phase value of the first half symbol period of the third signal is the fifth phase value, and the amplitude value of the second half symbol period of the third signal is the sixth The amplitude value and the phase value of the second half symbol period of the third signal are the sixth phase value, the fifth amplitude value and the sixth amplitude value are different from each other, and the fifth phase value and the sixth phase value are different from each other.
  • the third signal can have different characteristics when the target modulation is different, different target modulations of the second signal can be satisfied, thereby enriching the frame structure composition of the third signal.
  • step 802 can be specifically implemented through the following step 802a.
  • Step 802a The first device demodulates the first signal according to the first configuration information and the third configuration information and according to the preset criteria to obtain data of the third signal.
  • the above-mentioned preset criterion includes at least one of the following: a criterion based on differential signal structure, a maximum likelihood detection criterion, and a minimum Euclidean distance criterion.
  • the first device can demodulate the last part of the received signal based on the differential signal structure.
  • the first device can demodulate the first signal according to at least one of the criteria based on the differential signal structure, the maximum likelihood detection criterion, and the minimum Euclidean distance criterion to obtain the data of the third signal, Therefore, the flexibility of the first device to demodulate the first signal can be improved.
  • Step 803 The first device calculates the first parameter of the third signal based on the data of the third signal.
  • Step 804 The first device obtains the channel delay information, and reports the channel delay information and the first parameter to the target device.
  • step 804 can be specifically implemented through the following step 804a or 804b.
  • Step 804a The first device obtains channel delay information based on the first parameter, and reports the channel delay information and the first parameter to the target device.
  • the first device after calculating the first parameter, can calculate the above channel delay information through the equation corresponding to the first parameter.
  • Step 804b The first device obtains channel delay information based on the first signal and the second signal, and reports the channel delay information and the first parameter to the target device.
  • the first device can obtain the above-mentioned channel delay information according to the timestamp information carried in the first signal and the second signal respectively.
  • the timestamp information is used to indicate the time of sending or receiving the corresponding signal. time.
  • the first device can obtain the channel delay information based on the first parameter or the first signal and the second signal, the flexibility of the first device in obtaining the channel delay information can be improved.
  • step 804 can be specifically implemented through the following step 804c.
  • Step 804c The first device obtains the channel delay information, reports the channel delay information to the target device in the first reporting method according to the fourth configuration information, and reports the first parameters to the target device in the second reporting method.
  • the first reporting method and the second reporting method are different.
  • the fourth configuration information is used to configure at least one of the following: the reporting method of the above-mentioned channel delay information, the reporting time and frequency resources of the channel delay information, the carrying method of the channel delay information, and the first parameter The reporting method, the reporting time and frequency resources of the first parameter, and the carrying method of the first parameter.
  • the first device can report the above-mentioned channel delay information and the first parameter through different reporting methods according to the fourth configuration information, the flexibility of the first device in reporting data can be improved.
  • the above channel delay information may be used to indicate at least one of the following: first transmission delay, first delay extension, second transmission delay, second delay extension, third Transmission delay, third delay extension.
  • the first transmission delay is the channel transmission delay between the second device and the third device, and the first delay extension is the channel delay extension between the second device and the third device;
  • the second The transmission delay is the channel transmission delay between the first device and the third device, the second delay extension is the channel delay extension between the first device and the third device, and the third transmission delay is the channel delay extension between the first device and the third device.
  • the channel transmission delay between the second device and the third delay extension are the channel delay extension between the first device and the second device.
  • the first reporting method includes any of the following:
  • the first reporting method may include any of the above (1.1) to (1.3), the flexibility of the first device in reporting the above channel delay information can be improved.
  • the first parameter includes any of the following: bit error rate, bit error rate, and signal-to-noise ratio; then, the second reporting method may include any of the following:
  • the first target signal is: a third signal with a length of a first symbol period; and the second target signal is: a third signal with a length of a second symbol period.
  • the first reporting method may include any of the above (2.1) to (2.3), it may be provided High flexibility for the first device to report the first parameter.
  • the first device may only report the first parameter of the signal, and the target device calculates the above-mentioned channel delay information, so that the target device calculates the channel delay information and receives the first
  • the second parameters corresponding to each of the P frame structures can be calculated, and based on the P second parameters, the target frame structure used for data transmission can be determined from the P frame structures.
  • the first device can demodulate the received first signal according to the configuration information to obtain the data of the third signal, and can calculate the third signal based on the data of the third signal.
  • the first parameter of the signal and can report the obtained channel delay information and the calculated first parameter to the target device. Therefore, the target device no longer needs to estimate the channel delay information, and the target device can directly pass the channel.
  • the delay information and the first parameter are used to determine the target frame structure, thereby saving system overhead.
  • FIG. 9 shows a flow chart of the method for determining a frame structure provided by an embodiment of the present application.
  • the frame structure determination method provided by the embodiment of the present application may include the following step 901.
  • Step 901 The second device sends a second signal according to the second configuration information.
  • the second configuration information is used to configure signal parameters of the second signal.
  • the second signal includes: a first part, a second part, a third part and a fourth part.
  • the first part and the second part meet the following requirements: both have a length of the first time unit and contain exactly the same data; the third part and the fourth part meet the requirements: both have a length of the second time unit and contain the same data. Parts are the same.
  • the length of the first time unit is different from the length of the second time unit.
  • both the first time unit and the second time unit may be any of the following: symbols, time slots, subframes, and frames.
  • the data in the target time unit may be: a non-random sequence or a random sequence generated according to preset rules; wherein the target time unit is the first time unit or the second time unit.
  • the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal.
  • the second signal may be: a signal that provides a radio frequency carrier for the third device.
  • the second signal can satisfy the time domain structure as shown in Figure 10. It can be seen that the second signal s(n) includes two training frames, and training frame 1 includes two time slots with the same polarity and data. , the data length in each time slot is N, and the cycle length is And it is random; training frame 2 also includes two time slots with the same polarity and data (ie, the first time unit and the second time unit). The data length of each time slot is M and the cycle length is And it's random.
  • the second signal s(n) can satisfy the following:
  • the second device can send the second signal according to the second configuration information, and the first part and the second part of the second signal satisfy: the length is both the first time unit , and the data included are exactly the same; the third part and the fourth part in the second signal satisfy: the length is the second time unit, and the included data part is the same; and the length of the first time unit is the same as that of the second time unit.
  • the lengths are different, so that after receiving the second signal, the first device can obtain the channel delay information and the first parameter based on the second signal, so that the target device can further determine the target frame structure, thereby saving system overhead.
  • FIG. 11 shows a flow chart of the method for determining a frame structure provided by an embodiment of the present application.
  • the frame structure determination method provided by the embodiment of the present application may include the following steps 1101 to 1103.
  • Step 1101 The third device receives the second signal sent by the second device according to the second configuration information.
  • the second configuration information is used to configure signal parameters of the second signal.
  • the second signal may include: a first part, a second part, a third part and a fourth part.
  • the first part and the second part meet the following requirements: the length is the first time unit, and the data included is completely the same.
  • the third part and the fourth part meet the following requirements: the length is the second time unit and the data part included is the same.
  • the length of the first time unit is different from the length of the second time unit.
  • the first time unit and the second time unit are any of the following: symbols, time slots, subframes, and frames.
  • Step 1102 The third device modulates the second signal with the generated third signal according to the first configuration information and the third configuration information to obtain the first signal.
  • the first configuration information is used to configure the signal parameters of the first signal
  • the third configuration information is used to configure the signal parameters of the third signal.
  • the first signal, the second signal and the third signal are all used to: obtain the first parameter of the third signal, or obtain channel delay information.
  • the signal parameters of the first signal may include at least one of the following: the reflection coefficient of the first signal, the type of the first signal, the length of the first signal, and the time-frequency resource of the first signal.
  • the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal.
  • the signal parameters of the third signal may include at least one of the following: the type of the third signal, the length of the third signal, and the time-frequency resource of the third signal.
  • the third signal may be: a baseband signal used by the third device to perform target modulation on the second signal.
  • the target modulation is any one of the following: amplitude differential modulation, phase differential modulation, or amplitude and phase differential modulation.
  • the target modulation is the above-mentioned amplitude differential modulation, and the modulation order is second order; then:
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the first amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the second Amplitude value, the amplitude value of the second half symbol period of the third signal is the third amplitude value, and the second amplitude value and the third amplitude value are different from each other;
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the fourth amplitude value.
  • Five amplitude values, the amplitude value of the second half symbol period of the third signal is the sixth amplitude value, and the fifth amplitude value and the sixth amplitude value are different from each other.
  • both the first time unit and the second time unit may be any of the following: symbols, time slots, subframes, and frames.
  • the first value is bit 0, and the second value is bit 1; or, the first value is bit 1, and the second value is bit 0.
  • the target modulation is the above-mentioned phase differential modulation
  • the modulation order is second order
  • the third signal carries bit information through the phase difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the first phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the second Phase value, the phase value of the second half symbol period of the third signal is the third phase value, and the second phase value and the third phase value are different from each other;
  • the third signal carries bit information through the phase difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the fourth phase value.
  • Five phase values, the phase value of the second half symbol period of the third signal is the sixth phase value, and the fifth phase value and the sixth phase value are different from each other.
  • the target modulation is the above-mentioned amplitude and phase differential modulation, and the modulation order is second order; then:
  • the third signal carries bit information through the amplitude and phase difference values between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the first time twice the unit; and if the bit information indicates the first value, then the amplitude value of the third signal is the first amplitude value, and the phase value of the third signal is the first phase value; if the bit information indicates the second value, then The amplitude value of the first half symbol period of the third signal is the second amplitude value, the phase value of the first half symbol period of the third signal is the second phase value, and the amplitude value of the second half symbol period of the third signal is the third amplitude. value, the phase value of the second half symbol period of the third signal is the third phase value, the second amplitude value and the third amplitude value are different from each other, and the second phase value and the third phase value are different from each other;
  • the third signal passes through the first half symbol period of the second symbol period and the second half symbol period of the second symbol period. If the amplitude and phase difference values carry bit information, the length of the second symbol period is twice the second time unit; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value, The phase value of the third signal is the fourth phase value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the fifth amplitude value, and the phase value of the first half symbol period of the third signal is is the fifth phase value, the amplitude value of the second half symbol period of the third signal is the sixth amplitude value, the phase value of the second half symbol period of the third signal is the sixth phase value, the fifth amplitude value and the sixth amplitude The values are different from each other, and the fifth phase value and the sixth phase value are different from each other.
  • Step 1103 The third device sends the first signal according to the first configuration information.
  • the third device can modulate the received second signal with the generated third signal according to the configuration information, obtain the first signal, and send the first signal, it is possible to make the third device After receiving the first signal, a device can obtain channel delay information and first parameters based on the first signal, so that the target device can further determine the target frame structure, thereby saving system overhead.
  • the target device can calculate from The target frame structure used for data transmission is determined in the P frame structure;
  • Figures 12 to 15 show schematic diagrams of the radio frequency carrier signal and the baseband signal during the data transmission stage.
  • the frame structure meets the bit error rate performance under this condition.
  • the radio frequency carrier signal and baseband signal as shown in Figure 12 can be used.
  • This frame structure design can improve the frequency band utilization and reduce the Communication delay, and due to the large length of one repetition structure, it is suitable for communication scenarios with large channel delay or channel delay expansion; however, the disadvantage of this design is that if the radio frequency carrier signal itself sent by the radio frequency source is used to Used for communication with other communication node equipment, which may affect the frequency band utilization and communication delay of the existing communication system;
  • the length of the repeating structure is E and the number of repetitions is 1.
  • the frame structure meets the bit error rate performance under this condition.
  • the radio frequency carrier signal and the baseband signal as shown in Figure 13 can be used. Since the repeating structure length of the frame structure is the same, Therefore, the bit error rate performance is the same, and it is also suitable for scenarios with large communication delays.
  • the frame structure meets the bit error rate performance under this condition.
  • the radio frequency carrier signal and baseband signal can be used as shown in Figure 14.
  • the advantage of this frame structure design is that the radio frequency carrier signal and baseband The signal has a short period and has high requirements for synchronization. It can be applied to scenarios where channel delay or channel delay is small, or scenarios where the signal-to-noise ratio is small;
  • the frame structure with a repeating structure length of N and a repetition number of P satisfies the bit error rate performance under this condition.
  • the radio frequency carrier signal and the baseband signal can be used as shown in Figure 15. Since the repeating structure length of the frame structure is the same, so The bit error rate performance is the same, and it is also suitable for scenarios with small communication delays. And there is a frame structure used for other communication functions between the two repeated structures of the radio frequency carrier signal in this frame structure, which can reduce the frequency band utilization and communication delay of the original communication system; but the disadvantage is that it reduces the reverse The frequency band utilization of the scattering communication system and the communication delay of the backscattering communication system are improved.
  • the execution subject may be a frame structure determination device.
  • the frame structure determination method performed by the frame structure determination apparatus is used as an example to illustrate the frame structure determination apparatus provided by the embodiment of the present application.
  • the frame structure determination device 160 may include a configuration module 161, a calculation module 162, and a determination module 163.
  • the configuration module 161 can be used to configure and send target configuration information; the target configuration information is used by the first device to calculate the first parameter carried in the first signal.
  • the first signal is a signal generated based on the second signal and the third signal.
  • the third signal is a baseband signal that modulates the second signal, and the first parameter is the parameter of the third signal.
  • the calculation module 162 may be configured to calculate the second parameter corresponding to each of P frame structures according to the channel delay information and the first parameter reported by the first device, where P is a positive integer.
  • the determination module 163 may be configured to determine a target frame structure adopted for data transmission from P types of frame structures based on the P second parameters calculated by the calculation module 162 .
  • the target device may include any of the following: a first device, a second device, a third device, and a fourth device; wherein the first device is a BSC receiving device and the second device is a radio frequency source device. , the third device is the BSC sending device, and the fourth device is: a network node device other than the first device, the second device and the third device.
  • the second signal may include: a first part, a second part, a third part and a fourth part.
  • the first part and the second part satisfy: the length is the first time unit, and the included data is exactly the same;
  • the third part and the fourth part satisfy: the length is the second time unit, and the included data part is the same;
  • the length of one time unit is different from the length of the second time unit; both the first time unit and the second time unit are any of the following: symbols, time slots, subframes, and frames.
  • the above channel delay information can be used to indicate the first target delay and the second target delay; the first target delay is: the first channel transmission delay and the second channel transmission delay. and, and the minimum channel transmission delay in the third channel transmission delay; the second target delay is: the sum of the first channel delay extension and the second channel delay extension, and the third channel delay extension The maximum channel delay spread in .
  • the first channel transmission delay and the first channel delay are expanded to: the channel delay between the second device and the third device; the second channel transmission delay and the second channel delay are expanded to: the first device and The channel delay between the third device; the third channel transmission delay and the third channel delay are expanded to: the channel delay between the first device and the second device.
  • each of the two frame structures among the above P types of frame structures may satisfy the following requirements: the repeating structure lengths are different, and/or the number of repetitions is different.
  • the first parameter may include any of the following: bit error rate, bit error rate, and signal-to-noise ratio;
  • the second parameter may include any of the following: bit error rate, bit error rate, and signal-to-noise ratio. Compare.
  • the target configuration information may include at least one of the following: first configuration information, the first configuration information is used to configure signal parameters of the first signal; second configuration information, the second configuration information is used to configure the third signal.
  • the signal parameters of the first signal may include at least one of the following: a reflection coefficient of the first signal, a type of the first signal, a length of the first signal, and a time-frequency resource of the first signal; and/ Or, the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal; and/or the signal parameters of the third signal may include at least one of the following. Items: the type of the third signal, the length of the third signal, and the time-frequency resource of the third signal.
  • the target configuration information can be carried through any of the following: RRC, MAC-CE, DCI, SCI, and preamble sequence.
  • the frame structure determination device can configure and send target configuration information for the first device to calculate the first parameter carried in the first signal, and can report based on the first device.
  • the channel delay information and the first parameter are used to calculate the second parameter of any frame structure and determine the optimal frame structure for data transmission. Therefore, there is no need to estimate the channel delay first and then estimate frames with different repeating structure lengths multiple times. Based on the transmission performance of the structure, the optimal frame structure can be determined, thereby saving system overhead.
  • the frame structure determining device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the frame structure determination apparatus provided by the embodiments of the present application can implement each process implemented by the target device side method embodiment, and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • the frame structure determination device 170 may include a receiving module 171, a demodulation module 172, a calculation module 173, and a processing module 174.
  • the receiving module 171 may be configured to receive a first signal sent by a third device according to the first configuration information, and receive a second signal sent by a second device according to the second configuration information.
  • the demodulation module 172 may be used to demodulate the first signal according to the first configuration information and the third configuration information to obtain the data of the third signal.
  • the calculation module 173 may be used to calculate the first parameter of the third signal based on the data of the third signal demodulated by the demodulation module 172 .
  • the processing module 174 may be used to obtain channel delay information, and report the channel delay information and the first parameter to the target device.
  • the first configuration information is used to configure the signal parameters of the first signal
  • the second configuration information is used to configure the signal parameters of the second signal
  • the third configuration information is used to configure the signal parameters of the third signal; the first signal, the second signal Both the signal and the third signal are used to obtain the first parameter or obtain channel delay information.
  • the demodulation module 172 may be configured to demodulate the first signal according to a preset criterion; wherein the preset criterion includes at least one of the following: a criterion based on a differential signal structure, a maximum likelihood Random detection criterion and minimum Euclidean distance criterion.
  • the third signal is: a baseband signal used by the third device to perform target modulation on the second signal; wherein the target modulation is any of the following: amplitude differential modulation, phase differential modulation, amplitude sum Phase differential modulation.
  • the target modulation is amplitude differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the first amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the second amplitude value , the amplitude value of the second half symbol period of the third signal is the third amplitude value, and the second amplitude value and the third amplitude value are different from each other.
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the amplitude value of the second half symbol period of the third signal is the sixth amplitude value, and the fifth amplitude value and the sixth amplitude value are different from each other.
  • the target modulation is phase differential modulation
  • the modulation order is second order.
  • the third signal is passed through the If the phase difference value between the first half symbol period of a symbol period and the second half symbol period of the first symbol period carries bit information, the length of the first symbol period is twice the first time unit; and if the bit information indicates the first value, then the phase value of the third signal is the first phase value; if the bit information indicates the second value, then the phase value of the first half symbol period of the third signal is the second phase value, and the second half of the third signal The phase value of symbol period is the third phase value, and the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the phase difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the fifth phase value, the phase value of the second half symbol period of the third signal is the sixth phase value, and the fifth phase value and the sixth phase value are different from each other.
  • the target modulation is amplitude and phase differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the amplitude and phase difference values between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the first time twice the unit; and if the bit information indicates the first value, then the amplitude value of the third signal is the first amplitude value, and the phase value of the third signal is the first phase value; if the bit information indicates the second value, then the third
  • the amplitude value of the first half symbol period of the signal is the second amplitude value
  • the phase value of the first half symbol period of the third signal is the second phase value
  • the amplitude value of the second half symbol period of the third signal is the third amplitude value
  • the phase value of the second half symbol period of the third signal is the third phase value
  • the second amplitude value and the third amplitude value are different from each other
  • the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the amplitude and phase difference values of the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second twice the time unit; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value, and the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, then the The amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the phase value of the first half symbol period of the third signal is the fifth phase value, and the amplitude value of the second half symbol period of the third signal is the sixth amplitude value.
  • the phase value of the second half symbol period of the third signal is the sixth phase value, the fifth amplitude value and the sixth amplitude value are different from each other, and the fifth phase value and the sixth phase value are different from each other.
  • the first time unit and the second time unit may both be any of the following: symbols, time slots, subframes, and frames. and/or, the first value is bit 0, and the second value is bit 1; alternatively, the first value is bit 1, and the second value is bit 0.
  • the processing module 174 may be configured to obtain the channel delay information based on the first parameter; or obtain the channel delay information based on the first signal and the second signal.
  • the processing module 174 may be configured to report the above-mentioned channel delay information to the target device in a first reporting manner according to the fourth configuration information, and report the first parameters to the target device in a second reporting manner.
  • the first reporting method and the second reporting method are different.
  • the fourth configuration information is used to configure at least one of the following: a reporting method of the channel delay information, a reporting time and frequency resource of the channel delay information, a carrying method of the channel delay information, a reporting method of the first parameter, The reporting time and frequency resources of the first parameter and the carrying mode of the first parameter.
  • the above channel delay information may be used to indicate at least one of the following: first transmission delay, first delay spread, second transmission delay, second delay spread, third transmission time. Delay, third delay expansion.
  • first transmission delay is the channel transmission delay between the second device and the third device
  • first delay extension is the channel delay extension between the second device and the third device
  • second transmission delay is The channel transmission delay between the first device and the third device
  • second delay extension is the channel delay extension between the first device and the third device
  • the third transmission delay is the channel delay extension between the first device and the second device.
  • the third delay extension is the channel delay extension between the first device and the second device.
  • the first reporting method may include any of the following: reporting the first transmission delay, the first delay extension, the second transmission delay, the second delay extension, and the third transmission delay respectively. , the third delay extension; respectively report the sum of the first transmission delay and the second transmission delay, the sum of the first delay extension and the second delay extension, the third transmission delay, and the third delay extension; report The sum of the first transmission delay and the second transmission delay is equal to the minimum transmission delay in the third transmission delay, and the sum of the first delay extension and the second delay extension is reported, which is the same as the third delay extension.
  • the maximum delay expansion is possible implementation.
  • the first parameter may include any of the following: bit error rate, bit error rate, and signal-to-noise ratio.
  • the second reporting method includes any of the following: reporting only the first parameter of the first target signal; reporting only the first parameter of the second target signal; simultaneously reporting the first parameter of the first target signal and the second target signal. the first parameter.
  • the first target signal is: a third signal with a length of a first symbol period; and the second target signal is: a third signal with a length of a second symbol period.
  • the frame structure determination device can demodulate the received first signal according to the configuration information to obtain the data of the third signal, and can calculate based on the data of the third signal
  • the first parameter of the third signal, and the acquired channel delay information and the calculated first parameter can be reported to the target device. Therefore, the target device no longer needs to estimate the channel delay information, and the target device can directly pass The channel delay information and the first parameter determine the target frame structure, thereby saving system overhead.
  • the frame structure determining device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or it may Is a component in an electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the frame structure determination device provided by the embodiment of the present application can implement each process implemented by the first device-side method embodiment and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • this embodiment of the present application provides a frame structure determination device 180 , which may include a sending module 181 .
  • the sending module 181 may be configured to send the second signal according to the second configuration information, and the second configuration information is used to configure signal parameters of the second signal.
  • the second signal includes: the first part, the second part, the third part and the fourth part; the first part and the second part meet the following requirements: the length is the first time unit and the data included is exactly the same; the third part and The fourth part satisfies: the lengths are all the second time unit and include the same data part; the length of the first time unit is different from the length of the second time unit.
  • both the first time unit and the second time unit may be any of the following: symbols, time slots, subframes, and frames.
  • the data in the target time unit may be: a non-random sequence or a random sequence generated according to preset rules; wherein the target time unit is the first time unit or the second time unit.
  • the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal.
  • the second signal may be: a signal that provides a radio frequency carrier for the third device.
  • the frame structure determining device can send the second signal according to the second configuration information, and the first part and the second part in the second signal satisfy: the length is both the first time unit, and the data included are exactly the same; the third part and the fourth part in the second signal satisfy: the length is the second time unit, and the data part included is the same; and the length of the first time unit is the same as the second time unit.
  • the lengths of the units are different, so that after the first device receives the second signal, it can obtain the channel delay information and the first parameter based on the second signal, so that the target device can further determine the target frame structure, thereby saving the system s expenses.
  • the frame structure determining device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the frame structure determination device provided by the embodiment of the present application can implement each process implemented by the second device-side method embodiment and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • the frame structure determination device 190 may include a receiving module 191, a modulation module 192 and a sending module 193.
  • the receiving module 191 may be configured to receive the second signal sent by the second device according to the second configuration information.
  • the modulation module 192 may be configured to modulate the second signal with the generated third signal according to the first configuration information and the third configuration information to obtain the first signal.
  • the sending module 193 may be configured to send the first signal according to the first configuration information.
  • the first configuration information is used to configure the signal parameters of the first signal
  • the second configuration information is used to configure the signal parameters of the second signal
  • the third configuration information is used to configure the signal parameters of the third signal
  • the first signal, the second signal Both the signal and the third signal are used to: obtain the first parameter of the third signal, or obtain channel delay information.
  • the signal parameters of the first signal may include at least one of the following: a reflection coefficient of the first signal, a type of the first signal, a length of the first signal, and a time-frequency resource of the first signal; and/ Or, the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal; and/or the signal parameters of the third signal may include at least one of the following. Items: the type of the third signal, the length of the third signal, and the time-frequency resource of the third signal.
  • the second signal may include: a first part, a second part, a third part and a fourth part.
  • the first part and the second part satisfy: the length is the first time unit, and the included data is exactly the same;
  • the third part and the fourth part satisfy: the length is the second time unit, and the included data part is the same;
  • the length of one time unit is different from the length of the second time unit; both the first time unit and the second time unit are any of the following: symbols, time slots, subframes, and frames.
  • the third signal is: a baseband signal used by the third device to perform target modulation on the second signal; wherein the target modulation is any of the following: amplitude differential modulation, phase differential modulation, amplitude sum Phase differential modulation.
  • the target modulation is amplitude differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the first amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the second amplitude value , the amplitude value of the second half symbol period of the third signal is the third amplitude value, and the second amplitude value and the third amplitude value are different from each other.
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, then the amplitude value of the third signal is the fourth amplitude value; if the bit information indicates the second value, then the first half symbol period of the third signal.
  • the amplitude value of the period is the fifth amplitude value
  • the amplitude value of the second half symbol period of the third signal is the sixth amplitude value
  • the fifth amplitude value and the sixth amplitude value are different from each other.
  • the target modulation is phase differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the phase difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the first phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the second phase value , the phase value of the second half symbol period of the third signal is the third phase value, and the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the phase difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the fifth phase value, the phase value of the second half symbol period of the third signal is the sixth phase value, and the fifth phase value and the sixth phase value are different from each other.
  • the target modulation is amplitude and phase differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the amplitude and phase difference values between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the first time twice the unit; and if the bit information indicates the first value, then the amplitude value of the third signal is the first amplitude value, and the phase value of the third signal is the first phase value; if the bit information indicates the second value, then the third
  • the amplitude value of the first half symbol period of the signal is the second amplitude value
  • the phase value of the first half symbol period of the third signal is the second phase value
  • the amplitude value of the second half symbol period of the third signal is the third amplitude value
  • the phase value of the second half symbol period of the third signal is the third phase value
  • the second amplitude value and the third amplitude value are different from each other
  • the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the amplitude and phase difference values of the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second twice the time unit; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value, and the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, then the The amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the phase value of the first half symbol period of the third signal is the fifth phase value, and the amplitude value of the second half symbol period of the third signal is the sixth amplitude value.
  • the phase value of the second half symbol period of the third signal is the sixth phase value, the fifth amplitude value and the sixth amplitude value are different from each other, and the fifth phase value and the sixth phase value are different from each other.
  • the first time unit and the second time unit may both be any of the following: symbols, time slots, subframes, and frames. and/or, the first value is bit 0, and the second value is bit 1; alternatively, the first value is bit 1, and the second value is bit 0.
  • the frame structure determination device since the frame structure determination device can modulate the received second signal with the generated third signal according to the configuration information, obtain the first signal, and send the first signal, it can After the first device receives the first signal, the channel delay information and the first parameter can be obtained based on the first signal, so that the target device can further determine the target frame structure, thereby saving system overhead.
  • the frame structure determining device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the frame structure determination device provided by the embodiment of the present application can implement each process implemented by the third device-side method embodiment and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • this embodiment of the present application also provides a communication device 2000, which includes a processor 2001 and a memory 2002.
  • the memory 2002 stores programs or instructions that can be run on the processor 2001, such as , when the communication device 2000 is the above-mentioned first device, when the program or instruction is executed by the processor 2001, each process of the first device-side method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device 2000 is the above-mentioned second device, when the program or instruction is executed by the processor 2001, each process of the second device-side method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device 2000 When the communication device 2000 is the above-mentioned third device, when the program or instruction is executed by the processor 2001, each process of the third device-side method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device 2000 is the above-mentioned target device, when the program or instruction is executed by the processor 2001, each process of the method embodiment on the target device side is implemented, and the same technical effect can be achieved. To avoid duplication, the details are not repeated here.
  • Embodiments of the present application also provide a communication device, including a processor and a communication interface.
  • the processor is used to configure and send target configuration information; the target configuration information is used by the first device to calculate the first parameter carried in the first signal.
  • the first signal is a signal generated according to the second signal and the third signal, the third signal is a baseband signal that modulates the second signal, and the first parameter is a parameter of the third signal; and according to the channel delay information reported by the first device and the One parameter, calculate the second parameter corresponding to each frame structure in P types of frame structures, P is a positive integer; and determine the target frame structure used for data transmission from the P types of frame structures based on P second parameters; or,
  • the communication interface is used to receive the first signal sent by the third device according to the first configuration information, and to receive the first signal according to the second configuration information.
  • Receive the second signal sent by the second device the first device demodulates the first signal according to the first configuration information and the third configuration information to obtain the data of the third signal;
  • the processor is used to calculate based on the data of the third signal the first parameter of the third signal; and obtain the channel delay information, and report the channel delay information and the first parameter to the target device; wherein the first configuration information is used to configure the signal parameters of the first signal, and the second configuration information Used to configure the signal parameters of the second signal, the third configuration information is used to configure the signal parameters of the third signal;
  • the first signal, the second signal and the third signal are all used to: obtain the first parameter, or obtain channel delay information ;or,
  • the communication interface is used to send a second signal according to the second configuration information, and the second configuration information is used to configure signal parameters of the second signal; wherein the second signal includes: a first part, a second part, a third part and a fourth part. part; the first part and the second part satisfy: the length is the first time unit, and the included data are exactly the same; the third part and the fourth part satisfy: the length is the second time unit, and the included data part is the same; The length of one time unit is different from the length of the second time unit; or,
  • the communication interface is configured to receive a second signal sent by the second device according to the second configuration information; the processor is configured to modulate the second signal with the generated third signal according to the first configuration information and the third configuration information to obtain the first signal;
  • the communication interface is also used to send a first signal according to the first configuration information; wherein the first configuration information is used to configure the signal parameters of the first signal, the second configuration information is used to configure the signal parameters of the second signal, and the third configuration information Used to configure the signal parameters of the third signal; the first signal, the second signal and the third signal are all used to: obtain the first parameter of the third signal, or obtain channel delay information.
  • This communication device embodiment corresponds to the above-mentioned frame structure determination method embodiment.
  • Each implementation process and implementation manner of the above-mentioned frame structure determination method embodiment can be applied to this communication device embodiment, and can achieve the same technical effect.
  • the communication device may be a terminal, or may be a network-side device; taking the communication device as a terminal as an example, FIG. 21 is a schematic diagram of the hardware structure of the terminal.
  • the terminal 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, a processor 1010, etc. At least some parts.
  • the terminal 1000 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 1010 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal structure shown in FIG. 21 does not limit the terminal.
  • the terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.
  • the input unit 1004 may include a graphics processing unit (Graphics Processing Unit, GPU) 10041 and a microphone 10042.
  • the graphics processor 10041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras).
  • the display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072 .
  • Touch panel 10071 also known as touch screen.
  • the touch panel 10071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 10072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
  • the radio frequency unit 1001 after receiving downlink data from the network side device, can transmit it to the processor 1010 for processing; in addition, the radio frequency unit 1001 can send uplink data to the network side device.
  • the radio frequency unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
  • Memory 1009 may be used to store software programs or instructions as well as various data.
  • the memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
  • memory 1009 may include volatile memory or nonvolatile memory, or memory 1009 may include both volatile and nonvolatile memory.
  • non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory.
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory Synchronous DRAM, SDRAM
  • Double data rate synchronous dynamic random access memory Double Data Rate SDRAM, DDRSDRAM
  • enhanced SDRAM synchronous dynamic random access memory
  • Synch link DRAM synchronous link dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • Direct Rambus RAM Direct Rambus RAM
  • the processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 1010.
  • the processor 1010 can be used to configure and send target configuration information;
  • the target configuration information is used by the first device to calculate the first parameter carried in the first signal.
  • the first signal is a signal generated according to the second signal and the third signal.
  • the third signal is a baseband signal that modulates the second signal.
  • One parameter is a parameter of the third signal; and can be used to calculate the second parameter corresponding to each of P frame structures based on the channel delay information reported by the first device and the first parameter, where P is a positive integer; and It can be used to determine the target frame structure used for data transmission from P types of frame structures based on the calculated P second parameters.
  • the target device may include any of the following: a first device, a second device, a third device, and a fourth device; wherein the first device is a BSC receiving device and the second device is a radio frequency source device. , the third device is the BSC sending device, and the fourth device is: a network node device other than the first device, the second device and the third device.
  • the second signal may include: a first part, a second part, a third part and a fourth part.
  • the first part and the second part satisfy: the length is the first time unit, and the included data is exactly the same;
  • the third part and the fourth part satisfy: the length is the second time unit, and the included data part is the same;
  • the length of one time unit is different from the length of the second time unit; both the first time unit and the second time unit are any of the following: symbols, time slots, subframes, and frames.
  • the above channel delay information can be used to indicate the first target delay and the second target delay; the first target delay is: the first channel transmission delay and the second channel transmission delay. sum, and the minimum channel transmission delay in the third channel transmission delay; the second target delay is: the sum of the first channel delay extension and the second channel delay extension, and the maximum in the third channel delay extension Channel delay spread.
  • the first channel transmission delay and the first channel delay are expanded to: the channel delay between the second device and the third device; the second channel transmission delay and the second channel delay are expanded to: the first device and The channel delay between the third device; the third channel transmission delay and the third channel delay are expanded to: the channel delay between the first device and the second device.
  • each of the two frame structures among the above P types of frame structures may satisfy the following requirements: the repeating structure lengths are different, and/or the number of repetitions is different.
  • the first parameter may include any of the following: bit error rate, bit error rate, and signal-to-noise ratio;
  • the second parameter may include any of the following: bit error rate, bit error rate, and signal-to-noise ratio. Compare.
  • the target configuration information may include at least one of the following: first configuration information, the first configuration information is used to configure signal parameters of the first signal; second configuration information, the second configuration information is used to configure the third signal.
  • the signal parameters of the first signal may include at least one of the following: a reflection coefficient of the first signal, a type of the first signal, a length of the first signal, and a time-frequency resource of the first signal; and/ Or, the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal; and/or the signal parameters of the third signal may include at least one of the following. Items: the type of the third signal, the length of the third signal, and the time-frequency resource of the third signal.
  • the target configuration information can be carried through any of the following: RRC, MAC-CE, DCI, SCI, and preamble sequence.
  • the terminal can configure and send target configuration information for the first device to calculate the first parameter carried in the first signal, and can be based on the channel delay information reported by the first device and
  • the first parameter calculates the second parameter of any frame structure and determines the optimal frame structure for data transmission. Therefore, there is no need to estimate the channel delay first and then estimate the transmission performance of frame structures with different repeating structure lengths multiple times, which is convenient.
  • the optimal frame structure can be determined, thereby saving system overhead.
  • the terminal provided by the embodiments of this application can implement each process implemented by the target device side method embodiment and achieve the same technical effect. To avoid duplication, details will not be described here.
  • the radio frequency unit 1001 may be configured to receive the first signal sent by the third device according to the first configuration information, and receive the third signal sent by the second device according to the second configuration information.
  • the processor 1010 may be configured to demodulate the first signal according to the first configuration information and the third configuration information to obtain the data of the third signal; and may be configured to calculate the third signal based on the data of the third signal obtained through demodulation.
  • the first parameter of the three signals and can be used to obtain channel delay information, and report the channel delay information and the first parameter to the target device.
  • the first configuration information is used to configure the signal parameters of the first signal
  • the second configuration information is used to configure the signal parameters of the second signal
  • the third configuration information is used to configure the signal parameters of the third signal
  • the first signal, the second signal Both the signal and the third signal are used to obtain the first parameter or obtain channel delay information.
  • the processor 1010 may be configured to demodulate the first signal according to a preset criterion; wherein the preset criterion includes at least one of the following: a criterion based on differential signal structure, maximum likelihood Detection criterion, minimum Euclidean distance criterion.
  • the third signal is: a baseband signal used by the third device to perform target modulation on the second signal; wherein the target modulation is any of the following: amplitude differential modulation, phase differential modulation, amplitude sum Phase differential modulation.
  • the target modulation is amplitude differential modulation
  • the modulation order is second order.
  • the third signal carries the bit information through the amplitude difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period. Informationally, the length of the first symbol period is twice the first time unit; and if the bit information indicates the first value, then the amplitude value of the third signal is the first amplitude value; if the bit information indicates the second value, then The amplitude value of the first half symbol period of the third signal is the second amplitude value, the amplitude value of the second half symbol period of the third signal is the third amplitude value, and the second amplitude value and the third amplitude value are different from each other.
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the amplitude value of the second half symbol period of the third signal is the sixth amplitude value, and the fifth amplitude value and the sixth amplitude value are different from each other.
  • the target modulation is phase differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the phase difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the first phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the second phase value , the phase value of the second half symbol period of the third signal is the third phase value, and the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the phase difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the fifth phase value, the phase value of the second half symbol period of the third signal is the sixth phase value, and the fifth phase value and the sixth phase value are different from each other.
  • the target modulation is amplitude and phase differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the amplitude and phase difference values between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the first time twice the unit; and if the bit information indicates the first value, then the amplitude value of the third signal is the first amplitude value, and the phase value of the third signal is the first phase value; if the bit information indicates the second value, then the third
  • the amplitude value of the first half symbol period of the signal is the second amplitude value
  • the phase value of the first half symbol period of the third signal is the second phase value
  • the amplitude value of the second half symbol period of the third signal is the third amplitude value
  • the phase value of the second half symbol period of the third signal is the third phase value
  • the second amplitude value and the third amplitude value are different from each other
  • the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the amplitude and phase difference values of the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second twice the time unit; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value, and the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, then the The amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the phase value of the first half symbol period of the third signal is the fifth phase value, and the amplitude value of the second half symbol period of the third signal is the sixth amplitude value.
  • the phase value of the second half symbol period of the third signal is the sixth phase value, the fifth amplitude value and the sixth amplitude value are different from each other, and the fifth phase value and the sixth phase value are different from each other.
  • the first time unit and the second time unit may both be any of the following: symbols, time slots, subframes, and frames. and/or, the first value is bit 0, and the second value is bit 1; alternatively, the first value is bit 1, and the second value is bit 0.
  • the processor 1010 may be configured to obtain the channel delay information based on the first parameter; or obtain the channel delay information based on the first signal and the second signal.
  • the processor 1010 may be configured to report the above-mentioned channel delay information to the target device in a first reporting manner according to the fourth configuration information, and report the first parameters to the target device in a second reporting manner.
  • the first reporting method and the second reporting method are different.
  • the fourth configuration information is used to configure at least one of the following: a reporting method of the channel delay information, a reporting time and frequency resource of the channel delay information, a carrying method of the channel delay information, a reporting method of the first parameter, The reporting time and frequency resources of the first parameter and the carrying mode of the first parameter.
  • the above channel delay information may be used to indicate at least one of the following: first transmission delay, first delay spread, second transmission delay, second delay spread, third transmission time. Delay, third delay expansion.
  • first transmission delay is the channel transmission delay between the second device and the third device
  • first delay extension is the channel delay extension between the second device and the third device
  • second transmission delay is The channel transmission delay between the first device and the third device
  • second delay extension is the channel delay extension between the first device and the third device
  • the third transmission delay is the channel delay extension between the first device and the second device.
  • the third delay extension is the channel delay extension between the first device and the second device.
  • the first reporting method may include any of the following: reporting the first transmission delay, the first delay extension, the second transmission delay, the second delay extension, and the third transmission delay respectively. , the third delay extension; respectively report the sum of the first transmission delay and the second transmission delay, the sum of the first delay extension and the second delay extension, the third transmission delay, and the third delay extension; report The sum of the first transmission delay and the second transmission delay is equal to the minimum transmission delay in the third transmission delay, and the sum of the first delay extension and the second delay extension is reported, which is the same as the third delay extension.
  • the maximum delay expansion is possible implementation.
  • the first parameter may include any of the following: bit error rate, bit error rate, and signal-to-noise ratio.
  • Second up The reporting method includes any of the following: reporting only the first parameter of the first target signal; reporting only the first parameter of the second target signal; simultaneously reporting the first parameter of the first target signal and the second target signal.
  • the first target signal is: a third signal with a length of a first symbol period; and the second target signal is: a third signal with a length of a second symbol period.
  • the terminal can demodulate the received first signal according to the configuration information to obtain the data of the third signal, and can calculate the first value of the third signal based on the data of the third signal. parameters, and can report the obtained channel delay information and the calculated first parameter to the target device, so that the target device no longer needs to estimate the channel delay information, and the target device can directly use the channel delay information and The first parameter determines the target frame structure, thereby saving system overhead.
  • the terminal provided by the embodiment of this application can implement each process implemented by the first device-side method embodiment and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • the radio frequency unit 1001 can be used to send the second signal according to the second configuration information, and the second configuration information is used to configure the signal parameters of the second signal.
  • the second signal includes: the first part, the second part, the third part and the fourth part; the first part and the second part meet the following requirements: the length is the first time unit and the data included is exactly the same; the third part and The fourth part satisfies: the lengths are all the second time unit and include the same data part; the length of the first time unit is different from the length of the second time unit.
  • both the first time unit and the second time unit may be any of the following: symbols, time slots, subframes, and frames.
  • the data in the target time unit may be: a non-random sequence or a random sequence generated according to preset rules; wherein the target time unit is the first time unit or the second time unit.
  • the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal.
  • the second signal may be: a signal that provides a radio frequency carrier for the third device.
  • the terminal can send the second signal according to the second configuration information, and the first part and the second part of the second signal satisfy: the length is both the first time unit, and includes The data are exactly the same; the third part and the fourth part in the second signal meet the following requirements: the length is the second time unit and the data part included is the same; and the length of the first time unit is different from the length of the second time unit, so After receiving the second signal, the first device can obtain the channel delay information and the first parameter based on the second signal, so that the target device can further determine the target frame structure, thereby saving system overhead.
  • the terminal provided by the embodiment of the present application can implement each process implemented by the second device-side method embodiment and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • the radio frequency unit 1001 may be configured to receive the second signal sent by the second device according to the second configuration information.
  • the processor 1010 may be configured to modulate the second signal with the generated third signal according to the first configuration information and the third configuration information to obtain the first signal.
  • the radio frequency unit 1001 may also be configured to send the first signal according to the first configuration information.
  • the first configuration information is used to configure the signal parameters of the first signal
  • the second configuration information is used to configure the signal parameters of the second signal
  • the third configuration information is used to configure the signal parameters of the third signal;
  • the first signal, the second signal Both the signal and the third signal are used to: obtain the first parameter of the third signal, or obtain channel delay information.
  • the signal parameters of the first signal may include at least one of the following: a reflection coefficient of the first signal, a type of the first signal, a length of the first signal, and a time-frequency resource of the first signal; and/ Or, the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal; and/or the signal parameters of the third signal may include at least one of the following. Items: the type of the third signal, the length of the third signal, and the time-frequency resource of the third signal.
  • the second signal may include: a first part, a second part, a third part and a fourth part.
  • the first part and the second part satisfy: the length is the first time unit, and the included data is exactly the same;
  • the third part and the fourth part satisfy: the length is the second time unit, and the included data part is the same;
  • the length of one time unit is different from the length of the second time unit; both the first time unit and the second time unit are any of the following: symbols, time slots, subframes, and frames.
  • the third signal is: a baseband signal used by the third device to perform target modulation on the second signal; wherein the target modulation is any of the following: amplitude differential modulation, phase differential modulation, amplitude sum Phase differential modulation.
  • the target modulation is amplitude differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the first amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the second amplitude value , the amplitude value of the second half symbol period of the third signal is the third amplitude value, and the second amplitude value and the third amplitude value are different from each other.
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the amplitude value of the second half symbol period of the third signal is the sixth amplitude value, and the fifth amplitude value is the same as the The six amplitude values are different from each other.
  • the target modulation is phase differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the phase difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the first phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the second phase value , the phase value of the second half symbol period of the third signal is the third phase value, and the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the phase difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the fifth phase value, the phase value of the second half symbol period of the third signal is the sixth phase value, and the fifth phase value and the sixth phase value are different from each other.
  • the target modulation is amplitude and phase differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the amplitude and phase difference values between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the first time twice the unit; and if the bit information indicates the first value, then the amplitude value of the third signal is the first amplitude value, and the phase value of the third signal is the first phase value; if the bit information indicates the second value, then the third
  • the amplitude value of the first half symbol period of the signal is the second amplitude value
  • the phase value of the first half symbol period of the third signal is the second phase value
  • the amplitude value of the second half symbol period of the third signal is the third amplitude value
  • the phase value of the second half symbol period of the third signal is the third phase value
  • the second amplitude value and the third amplitude value are different from each other
  • the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the amplitude and phase difference values of the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second twice the time unit; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value, and the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, then the The amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the phase value of the first half symbol period of the third signal is the fifth phase value, and the amplitude value of the second half symbol period of the third signal is the sixth amplitude value.
  • the phase value of the second half symbol period of the third signal is the sixth phase value, the fifth amplitude value and the sixth amplitude value are different from each other, and the fifth phase value and the sixth phase value are different from each other.
  • the first time unit and the second time unit may both be any of the following: symbols, time slots, subframes, and frames. and/or, the first value is bit 0, and the second value is bit 1; alternatively, the first value is bit 1, and the second value is bit 0.
  • the terminal since the terminal can modulate the received second signal with the generated third signal according to the configuration information, obtain the first signal, and send the first signal, the first device can receive After the first signal, the channel delay information and the first parameter can be obtained based on the first signal, so that the target device can further determine the target frame structure, thereby saving system overhead.
  • the radio frequency unit 1001 in the terminal 1000 is actually an antenna unit.
  • the terminal provided by the embodiment of this application can implement each process implemented by the third device-side method embodiment and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • FIG. 22 is a schematic diagram of the hardware structure of the network-side device.
  • the network side device 2200 includes: an antenna 221, a radio frequency device 222, a baseband device 223, a processor 224 and a memory 225.
  • the antenna 221 is connected to the radio frequency device 222.
  • the radio frequency device 222 receives information through the antenna 221 and sends the received information to the baseband device 223 for processing.
  • the baseband device 223 processes the information to be sent and sends it to the radio frequency device 222.
  • the radio frequency device 222 processes the received information and then sends it out through the antenna 221.
  • the method performed by the network side device in the above embodiment can be implemented in the baseband device 223, which includes a baseband processor.
  • the baseband device 223 may include, for example, at least one baseband board on which multiple chips are disposed, as shown in FIG. 22 .
  • One of the chips is, for example, a baseband processor, which is connected to the memory 225 through a bus interface to call the memory 225 .
  • the network side device may also include a network interface 226, which is, for example, a common public radio interface (CPRI).
  • a network interface 226, which is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the network side device 2200 in the embodiment of the present application also includes: instructions or programs stored in the memory 225 and executable on the processor 224.
  • the processor 224 calls the instructions or programs in the memory 225 to execute Figures 16 to 19
  • the execution methods of each module are shown and achieve the same technical effect. To avoid repetition, they will not be described in detail here.
  • the processor 224 can be used to configure and send target configuration information; the target configuration information is used by the first device to calculate the first parameter carried in the first signal. is a signal generated according to the second signal and the third signal, the third signal is a baseband signal that modulates the second signal, and the first parameter is a parameter of the third signal; And it can be used to calculate the second parameter corresponding to each frame structure in P types of frame structures based on the channel delay information and the first parameter reported by the first device, where P is a positive integer; and can be used to calculate the P frame structures based on the calculation.
  • the second parameter determines the target frame structure used for data transmission from P types of frame structures.
  • the target device may include any of the following: a first device, a second device, a third device, and a fourth device; wherein the first device is a BSC receiving device and the second device is a radio frequency source device. , the third device is the BSC sending device, and the fourth device is: a network node device other than the first device, the second device and the third device.
  • the second signal may include: a first part, a second part, a third part and a fourth part.
  • the first part and the second part satisfy: the length is the first time unit, and the included data is exactly the same;
  • the third part and the fourth part satisfy: the length is the second time unit, and the included data part is the same;
  • the length of one time unit is different from the length of the second time unit; both the first time unit and the second time unit are any of the following: symbols, time slots, subframes, and frames.
  • the above channel delay information can be used to indicate the first target delay and the second target delay; the first target delay is: the first channel transmission delay and the second channel transmission delay. sum, and the minimum channel transmission delay in the third channel transmission delay; the second target delay is: the sum of the first channel delay extension and the second channel delay extension, and the maximum in the third channel delay extension Channel delay spread.
  • the first channel transmission delay and the first channel delay are expanded to: the channel delay between the second device and the third device; the second channel transmission delay and the second channel delay are expanded to: the first device and The channel delay between the third device; the third channel transmission delay and the third channel delay are expanded to: the channel delay between the first device and the second device.
  • each of the two frame structures among the above P types of frame structures may satisfy the following requirements: the repeating structure lengths are different, and/or the number of repetitions is different.
  • the first parameter may include any of the following: bit error rate, bit error rate, and signal-to-noise ratio;
  • the second parameter may include any of the following: bit error rate, bit error rate, and signal-to-noise ratio. Compare.
  • the target configuration information may include at least one of the following: first configuration information, the first configuration information is used to configure signal parameters of the first signal; second configuration information, the second configuration information is used to configure the third signal.
  • the signal parameters of the first signal may include at least one of the following: a reflection coefficient of the first signal, a type of the first signal, a length of the first signal, and a time-frequency resource of the first signal; and/ Or, the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal; and/or the signal parameters of the third signal may include at least one of the following. Items: the type of the third signal, the length of the third signal, and the time-frequency resource of the third signal.
  • the target configuration information can be carried through any of the following: RRC, MAC-CE, DCI, SCI, and preamble sequence.
  • the network side device can configure and send target configuration information for the first device to calculate the first parameter carried in the first signal, and can be based on the channel reported by the first device. Delay information and the first parameter, calculate the second parameter of any frame structure, and determine the optimal frame structure used for data transmission. Therefore, there is no need to estimate the channel delay first, and then estimate the frame structure of different repeated structure lengths multiple times. According to the transmission performance, the optimal frame structure can be determined, thereby saving system overhead.
  • the network-side device provided by the embodiment of the present application can implement each process implemented by the target device-side method embodiment and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • the radio frequency device 222 can be used to receive the first signal sent by the third device according to the first configuration information, and receive the first signal sent by the second device according to the second configuration information. the second signal.
  • the processor 224 may be configured to demodulate the first signal according to the first configuration information and the third configuration information to obtain the data of the third signal; and may be configured to calculate the third signal based on the data of the third signal obtained through demodulation.
  • the first parameter of the three signals and can be used to obtain channel delay information, and report the channel delay information and the first parameter to the target device.
  • the first configuration information is used to configure the signal parameters of the first signal
  • the second configuration information is used to configure the signal parameters of the second signal
  • the third configuration information is used to configure the signal parameters of the third signal
  • the first signal, the second signal Both the signal and the third signal are used to obtain the first parameter or obtain channel delay information.
  • the processor 224 may be configured to demodulate the first signal according to a preset criterion; wherein the preset criterion includes at least one of the following: a criterion based on differential signal structure, maximum likelihood Detection criterion, minimum Euclidean distance criterion.
  • the third signal is: a baseband signal used by the third device to perform target modulation on the second signal; wherein the target modulation is any of the following: amplitude differential modulation, phase differential modulation, amplitude sum Phase differential modulation.
  • the target modulation is amplitude differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the first amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the second amplitude value. degree value, the amplitude value of the second half symbol period of the third signal is the third amplitude value, and the second amplitude value and the third amplitude value are different from each other.
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the amplitude value of the second half symbol period of the third signal is the sixth amplitude value, and the fifth amplitude value and the sixth amplitude value are different from each other.
  • the target modulation is phase differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the phase difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the first phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the second phase value , the phase value of the second half symbol period of the third signal is the third phase value, and the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the phase difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the fifth phase value, the phase value of the second half symbol period of the third signal is the sixth phase value, and the fifth phase value and the sixth phase value are different from each other.
  • the target modulation is amplitude and phase differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the amplitude and phase difference values between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the first time twice the unit; and if the bit information indicates the first value, then the amplitude value of the third signal is the first amplitude value, and the phase value of the third signal is the first phase value; if the bit information indicates the second value, then the third
  • the amplitude value of the first half symbol period of the signal is the second amplitude value
  • the phase value of the first half symbol period of the third signal is the second phase value
  • the amplitude value of the second half symbol period of the third signal is the third amplitude value
  • the phase value of the second half symbol period of the third signal is the third phase value
  • the second amplitude value and the third amplitude value are different from each other
  • the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the amplitude and phase difference values of the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second twice the time unit; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value, and the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, then the The amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the phase value of the first half symbol period of the third signal is the fifth phase value, and the amplitude value of the second half symbol period of the third signal is the sixth amplitude value.
  • the phase value of the second half symbol period of the third signal is the sixth phase value, the fifth amplitude value and the sixth amplitude value are different from each other, and the fifth phase value and the sixth phase value are different from each other.
  • the first time unit and the second time unit may both be any of the following: symbols, time slots, subframes, and frames. and/or, the first value is bit 0, and the second value is bit 1; alternatively, the first value is bit 1, and the second value is bit 0.
  • the processor 224 may be configured to obtain the channel delay information based on the first parameter; or obtain the channel delay information based on the first signal and the second signal.
  • the processor 224 may be configured to report the above channel delay information to the target device in a first reporting manner according to the fourth configuration information, and report the first parameters to the target device in a second reporting manner.
  • the first reporting method and the second reporting method are different.
  • the fourth configuration information is used to configure at least one of the following: a reporting method of the channel delay information, a reporting time and frequency resource of the channel delay information, a carrying method of the channel delay information, a reporting method of the first parameter, The reporting time and frequency resources of the first parameter and the carrying mode of the first parameter.
  • the above channel delay information may be used to indicate at least one of the following: first transmission delay, first delay spread, second transmission delay, second delay spread, third transmission time. Delay, third delay expansion.
  • first transmission delay is the channel transmission delay between the second device and the third device
  • first delay extension is the channel delay extension between the second device and the third device
  • second transmission delay is The channel transmission delay between the first device and the third device
  • second delay extension is the channel delay extension between the first device and the third device
  • the third transmission delay is the channel delay extension between the first device and the second device.
  • the third delay extension is the channel delay extension between the first device and the second device.
  • the first reporting method may include any of the following: reporting the first transmission delay, the first delay extension, the second transmission delay, the second delay extension, and the third transmission delay respectively. , the third delay extension; respectively report the sum of the first transmission delay and the second transmission delay, the sum of the first delay extension and the second delay extension, the third transmission delay, and the third delay extension; report The sum of the first transmission delay and the second transmission delay is equal to the minimum transmission delay in the third transmission delay, and the sum of the first delay extension and the second delay extension is reported, which is the same as the third delay extension.
  • the maximum delay expansion is possible implementation.
  • the first parameter may include any of the following: bit error rate, bit error rate, and signal-to-noise ratio.
  • the second reporting method includes any of the following: reporting only the first parameter of the first target signal; reporting only the first parameter of the second target signal; simultaneously reporting the first parameter of the first target signal and the second target signal. the first parameter.
  • the first target signal is: The third signal has a length of the first symbol period; the second target signal is: a third signal with a length of the second symbol period.
  • the network side device can demodulate the received first signal according to the configuration information to obtain the data of the third signal, and can calculate the third signal based on the data of the third signal.
  • the first parameter of the signal and can report the obtained channel delay information and the calculated first parameter to the target device. Therefore, the target device no longer needs to estimate the channel delay information, and the target device can directly pass the channel.
  • the delay information and the first parameter are used to determine the target frame structure, thereby saving system overhead.
  • the network side device provided by the embodiment of the present application can implement each process implemented by the first device side method embodiment and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • the radio frequency device 222 can be used to send the second signal according to the second configuration information, and the second configuration information is used to configure the signal parameters of the second signal.
  • the second signal includes: the first part, the second part, the third part and the fourth part; the first part and the second part meet the following requirements: the length is the first time unit and the data included is exactly the same; the third part and The fourth part satisfies: the lengths are all the second time unit and include the same data part; the length of the first time unit is different from the length of the second time unit.
  • both the first time unit and the second time unit may be any of the following: symbols, time slots, subframes, and frames.
  • the data in the target time unit may be: a non-random sequence or a random sequence generated according to preset rules; wherein the target time unit is the first time unit or the second time unit.
  • the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal.
  • the second signal may be: a signal that provides a radio frequency carrier for the third device.
  • the network side device can send the second signal according to the second configuration information, and the first part and the second part of the second signal satisfy: the length is both the first time unit , and the data included are exactly the same; the third part and the fourth part in the second signal satisfy: the length is the second time unit, and the included data part is the same; and the length of the first time unit is the same as that of the second time unit.
  • the lengths are different, so that after receiving the second signal, the first device can obtain the channel delay information and the first parameter based on the second signal, so that the target device can further determine the target frame structure, thereby saving system overhead.
  • the network side device provided by the embodiment of the present application can implement each process implemented by the second device side method embodiment and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • the radio frequency device 222 may be configured to receive the second signal sent by the second device according to the second configuration information.
  • the processor 224 may be configured to modulate the second signal with the generated third signal according to the first configuration information and the third configuration information to obtain the first signal.
  • the radio frequency device 222 may also be used to send the first signal according to the first configuration information.
  • the first configuration information is used to configure the signal parameters of the first signal
  • the second configuration information is used to configure the signal parameters of the second signal
  • the third configuration information is used to configure the signal parameters of the third signal;
  • the first signal, the second signal Both the signal and the third signal are used to: obtain the first parameter of the third signal, or obtain channel delay information.
  • the signal parameters of the first signal may include at least one of the following: a reflection coefficient of the first signal, a type of the first signal, a length of the first signal, and a time-frequency resource of the first signal; and/ Or, the signal parameters of the second signal may include at least one of the following: the type of the second signal, the length of the second signal, and the time-frequency resource of the second signal; and/or the signal parameters of the third signal may include at least one of the following. Items: the type of the third signal, the length of the third signal, and the time-frequency resource of the third signal.
  • the second signal may include: a first part, a second part, a third part and a fourth part.
  • the first part and the second part satisfy: the length is the first time unit, and the included data is exactly the same;
  • the third part and the fourth part satisfy: the length is the second time unit, and the included data part is the same;
  • the length of one time unit is different from the length of the second time unit; both the first time unit and the second time unit are any of the following: symbols, time slots, subframes, and frames.
  • the third signal is: a baseband signal used by the third device to perform target modulation on the second signal; wherein the target modulation is any of the following: amplitude differential modulation, phase differential modulation, amplitude sum Phase differential modulation.
  • the target modulation is amplitude differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the length of the first time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the first amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the second amplitude value , the amplitude value of the second half symbol period of the third signal is the third amplitude value, and the second amplitude value and the third amplitude value are different from each other.
  • the third signal carries bit information through the amplitude difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value; if the bit information indicates the second value, the amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the amplitude value of the second half symbol period of the third signal is the sixth amplitude value, and the fifth amplitude value and the sixth amplitude value are different from each other.
  • the target modulation is phase differential modulation
  • the modulation order is second order.
  • the third signal is passed through the If the phase difference value between the first half symbol period of a symbol period and the second half symbol period of the first symbol period carries bit information, the length of the first symbol period is twice the first time unit; and if the bit information indicates the first value, then the phase value of the third signal is the first phase value; if the bit information indicates the second value, then the phase value of the first half symbol period of the third signal is the second phase value, and the second half of the third signal The phase value of symbol period is the third phase value, and the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the phase difference value between the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second time unit. twice; and if the bit information indicates the first value, the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, the phase value of the first half symbol period of the third signal is the fifth phase value, the phase value of the second half symbol period of the third signal is the sixth phase value, and the fifth phase value and the sixth phase value are different from each other.
  • the target modulation is amplitude and phase differential modulation
  • the modulation order is second order.
  • the third signal carries bit information through the amplitude and phase difference values between the first half symbol period of the first symbol period and the second half symbol period of the first symbol period.
  • the length of the first symbol period is the first time twice the unit; and if the bit information indicates the first value, then the amplitude value of the third signal is the first amplitude value, and the phase value of the third signal is the first phase value; if the bit information indicates the second value, then the third
  • the amplitude value of the first half symbol period of the signal is the second amplitude value
  • the phase value of the first half symbol period of the third signal is the second phase value
  • the amplitude value of the second half symbol period of the third signal is the third amplitude value
  • the phase value of the second half symbol period of the third signal is the third phase value
  • the second amplitude value and the third amplitude value are different from each other
  • the second phase value and the third phase value are different from each other.
  • the third signal carries bit information through the amplitude and phase difference values of the first half symbol period of the second symbol period and the second half symbol period of the second symbol period.
  • the length of the second symbol period is the second twice the time unit; and if the bit information indicates the first value, the amplitude value of the third signal is the fourth amplitude value, and the phase value of the third signal is the fourth phase value; if the bit information indicates the second value, then the The amplitude value of the first half symbol period of the third signal is the fifth amplitude value, the phase value of the first half symbol period of the third signal is the fifth phase value, and the amplitude value of the second half symbol period of the third signal is the sixth amplitude value.
  • the phase value of the second half symbol period of the third signal is the sixth phase value, the fifth amplitude value and the sixth amplitude value are different from each other, and the fifth phase value and the sixth phase value are different from each other.
  • the first time unit and the second time unit may both be any of the following: symbols, time slots, subframes, and frames. and/or, the first value is bit 0, and the second value is bit 1; alternatively, the first value is bit 1, and the second value is bit 0.
  • the network side device since the network side device can modulate the received second signal with the generated third signal according to the configuration information, obtain the first signal, and send the first signal, it is possible to make the third signal After receiving the first signal, a device can obtain channel delay information and first parameters based on the first signal, so that the target device can further determine the target frame structure, thereby saving system overhead.
  • the network side device provided by the embodiment of the present application can implement each process implemented by the third device side method embodiment and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • Embodiments of the present application also provide a readable storage medium, which stores a program or instructions.
  • a program or instructions When the program or instructions are executed by a processor, each process of the above frame structure determination method embodiment is implemented, and can achieve The same technical effects are not repeated here to avoid repetition.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the above embodiment of the frame structure determination method. Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product.
  • the computer program/program product is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement the above frame structure determination method.
  • Each process in the example can achieve the same technical effect. To avoid repetition, we will not repeat it here.
  • An embodiment of the present application also provides a communication system, including: a first device, a second device, a third device and a target device as described in the above embodiments.
  • the communication system can implement each process of the above frame structure determination method embodiment, and can achieve the same technical effect. To avoid repetition, details will not be described here.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne le domaine des communications. Sont divulgués un procédé et un appareil de détermination de structure de trame, ainsi qu'un dispositif de communication et un support de stockage. Le procédé de détermination de structure de trame dans les modes de réalisation de la présente demande comprend les étapes suivantes : un dispositif cible configure et envoie des informations de configuration cible, les informations de configuration cible étant utilisées par un premier dispositif pour calculer un premier paramètre transporté dans un premier signal, le premier signal étant un signal généré selon un deuxième signal et un troisième signal, le troisième signal étant un signal en bande de base pour moduler le deuxième signal, et le premier paramètre étant un paramètre du troisième signal ; le dispositif cible calcule, selon des informations de retard de canal, qui sont rapportées par le premier dispositif, et le premier paramètre, un second paramètre correspondant à chaque structure de trame parmi P structures de trame, P étant un nombre entier positif ; et le dispositif cible détermine, parmi les P structures de trame et selon P seconds paramètres, une structure de trame cible utilisée pour une transmission de données.
PCT/CN2023/111735 2022-08-10 2023-08-08 Procédé et appareil de détermination de structure de trame, et dispositif de communication et support de stockage WO2024032607A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210957880.6A CN117640006A (zh) 2022-08-10 2022-08-10 帧结构确定方法、装置、通信设备及存储介质
CN202210957880.6 2022-08-10

Publications (1)

Publication Number Publication Date
WO2024032607A1 true WO2024032607A1 (fr) 2024-02-15

Family

ID=89850942

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/111735 WO2024032607A1 (fr) 2022-08-10 2023-08-08 Procédé et appareil de détermination de structure de trame, et dispositif de communication et support de stockage

Country Status (2)

Country Link
CN (1) CN117640006A (fr)
WO (1) WO2024032607A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160095137A1 (en) * 2014-09-26 2016-03-31 Qualcomm Incorporated Ultra-low latency lte uplink frame structure
US20200112953A1 (en) * 2018-10-07 2020-04-09 At&T Intellectual Property I, L.P. Frame structure coordination in wireless communication systems with integrated access and backhaul links in advanced networks
CN111756508A (zh) * 2019-03-29 2020-10-09 华为技术有限公司 一种通信方法及装置
CN112953863A (zh) * 2021-02-09 2021-06-11 西安电子科技大学 一种适用于超低信噪比多径传输环境的信道参数估计方法
CN114221837A (zh) * 2020-09-04 2022-03-22 维沃移动通信有限公司 帧结构指示方法、帧结构更新方法及相关设备
CN114885376A (zh) * 2022-05-30 2022-08-09 中国联合网络通信集团有限公司 一种帧结构配置方法、装置及存储介质

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160095137A1 (en) * 2014-09-26 2016-03-31 Qualcomm Incorporated Ultra-low latency lte uplink frame structure
US20200112953A1 (en) * 2018-10-07 2020-04-09 At&T Intellectual Property I, L.P. Frame structure coordination in wireless communication systems with integrated access and backhaul links in advanced networks
CN111756508A (zh) * 2019-03-29 2020-10-09 华为技术有限公司 一种通信方法及装置
CN114221837A (zh) * 2020-09-04 2022-03-22 维沃移动通信有限公司 帧结构指示方法、帧结构更新方法及相关设备
CN112953863A (zh) * 2021-02-09 2021-06-11 西安电子科技大学 一种适用于超低信噪比多径传输环境的信道参数估计方法
CN114885376A (zh) * 2022-05-30 2022-08-09 中国联合网络通信集团有限公司 一种帧结构配置方法、装置及存储介质

Also Published As

Publication number Publication date
CN117640006A (zh) 2024-03-01

Similar Documents

Publication Publication Date Title
Wang et al. Ambient backscatter communication systems: Detection and performance analysis
US11330434B2 (en) Security detection for a physical layer authentication system that considers signal-discriminating capability of an active adversary
US20200169883A1 (en) Security Detection Method for Physical Layer Authentication System
WO2023088298A1 (fr) Procédé de détection de signal de sonde, procédé de traitement de détection de signal de détection et dispositif associé
WO2023088299A1 (fr) Procédé et appareil de traitement de transmission de signal de détection, et dispositif associé
WO2024032607A1 (fr) Procédé et appareil de détermination de structure de trame, et dispositif de communication et support de stockage
WO2024032609A1 (fr) Procédé et appareil d'estimation d'informations de retard, dispositif de communication et support de stockage
CN116708086A (zh) 感知方法、装置及通信设备
WO2024017114A1 (fr) Procédé de communication de rétrodiffusion, dispositif et support de stockage lisible
WO2024061175A1 (fr) Procédé et appareil de transmission de signal, et dispositif de communication et support d'enregistrement
Wu et al. Feature detection based spectrum sensing in NOMA system
Hu et al. Energy harvesting relaying using non‐ideal relaying node in Rician fading channels
WO2024037446A1 (fr) Procédé et appareil de traitement de signal et dispositif de communication
WO2023231924A1 (fr) Procédé d'envoi de signal, et dispositif d'envoi et dispositif de réception
WO2023246683A1 (fr) Procédés et appareils de transmission et de réception d'informations, dispositif et support de stockage lisible
WO2023246919A1 (fr) Procédé et appareil d'estimation de canal, dispositif de communication, système et support de stockage
WO2024037447A1 (fr) Procédé et appareil de traitement de communication de rétrodiffusion, dispositif de communication et support de stockage lisible
WO2024001978A1 (fr) Procédé de traitement de signal et dispositif de communication
WO2023138456A1 (fr) Procédé et appareil de traitement de signal et dispositif de communication
WO2024046224A1 (fr) Procédé et appareil de traitement d'informations, dispositif de communication et support de stockage lisible
WO2023198094A1 (fr) Procédé de détermination d'entrée de modèle et dispositif de communication
WO2023185921A1 (fr) Procédé et appareil d'indication d'informations, procédé et appareil d'acquisition d'indication, et dispositif et support de stockage
WO2023088232A1 (fr) Procédé et appareil de communication à accès multiple hybride, terminal et dispositif côté réseau
WO2024061233A1 (fr) Procédé d'envoi de signal, procédé de réception de signal, et dispositif
WO2023246880A1 (fr) Procédé et appareil de traitement de transmission de liaison latérale, procédé et appareil de configuration de transmission de liaison latérale, terminal et dispositif côté réseau

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23851828

Country of ref document: EP

Kind code of ref document: A1