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CN-122001497-A - Calibration method, message transmission method, device and equipment

CN122001497ACN 122001497 ACN122001497 ACN 122001497ACN-122001497-A

Abstract

The application discloses a calibration method, a message transmission method, a device and equipment, which belong to the technical field of communication, and the calibration method of the embodiment of the application comprises the steps that the equipment performs SFO calibration based on at least one of R2D transmission, D2R transmission and equipment type; the R2D transmission is used for SFO calibration, and the parameters of the D2R transmission are used for SFO calibration.

Inventors

  • WANG LIHUI
  • WANG CHENGRUI

Assignees

  • 维沃移动通信有限公司

Dates

Publication Date
20260508
Application Date
20241107

Claims (20)

  1. 1. A method of calibration, comprising: the device performs sampling frequency offset, SFO, calibration based on at least one of a reader-writer to device, R2D, transmission, device-to-reader D2R, and device type; wherein the R2D transmission is used for SFO calibration; the D2R transmitted parameters are used for SFO calibration.
  2. 2. The method of claim 1, wherein the R2D transmission comprises at least one of: A first R2D signal, a first R2D channel, a second R2D signal, a second R2D channel, and R2D indication information; The first R2D signal is an aperiodic signal, the second R2D signal is a periodic signal, the first R2D channel is an aperiodic channel, and the second R2D channel is a periodic channel.
  3. 3. The method of claim 2, wherein the accuracy achievable by the SFO calibration is determined by at least one of parameters of the first R2D signal, parameters of the first R2D channel, parameters of the second R2D signal, parameters of the second R2D channel, content indicated by the R2D indication information, parameters of the D2R transmission, and device type.
  4. 4. The method of claim 3, wherein the parameter of the first R2D signal comprises a transmission length of the first R2D signal, and wherein the parameter of the first R2D channel comprises a transmission length of the first R2D channel; The transmission length of the first R2D signal or the first R2D channel includes L chips, the value of L is variable, and different values of L correspond to different SFO calibration accuracies.
  5. 5. The method of claim 4, wherein the transmission length L1 of the first R2D signal or the first R2D channel satisfies a requirement that SFO calibration accuracy reach a first value, and/or The transmission length of the first R2D signal or the first R2D channel is L2, which satisfies the requirement that the SFO calibration accuracy reaches the second value; Wherein L1 is less than L2, L2 is an integer greater than 1, and the first value is less than the second value.
  6. 6. The method of claim 5, wherein L1 and L2 satisfy: the values of the L1 and the L2 are the number of chips included in the actual transmission length of the first R2D signal or the first R2D channel, or the values of the L1 and the L2 are the number of chips at least needed to be included in the first R2D signal or the first R2D channel, and the actual transmission length of the first R2D signal or the first R2D channel is larger than or equal to L1 or L2 chips.
  7. 7. The method according to any of claims 4 to 6, wherein the transmission length of the first R2D signal or the first R2D channel is indicated by at least one of: A second R2D signal, a second R2D channel, a third R2D signal, a third R2D channel, a fourth R2D signal, a fourth R2D channel, a reader/writer, a protocol specification; Wherein the second R2D signal is a periodic signal, and the second R2D channel is a periodic channel; The third R2D signal is a signal received by the device before the first R2D signal, or the third R2D signal is part of the first R2D signal; The third R2D channel is an R2D channel received by the device before the first R2D channel, or the third R2D channel is part of the first R2D channel; the fourth R2D signal is an R2D signal received by the device after the first R2D signal, or the fourth R2D signal is part of the first R2D signal; The fourth R2D channel is an R2D channel received by the device after the first R2D channel, or the third R2D channel is part of the first R2D channel.
  8. 8. The method of any one of claims 2 to 7, wherein the first R2D signal comprises at least one of: an R2D timing acquisition signal, an R2D clock acquisition portion, an R2D frequency synchronization signal, an R2D post synchronization signal, or an R2D post code postamble; The first R2D channel includes a physical reader-writer-to-device channel PRDCH; The second R2D signal includes at least one of: an R2D timing acquisition signal, an R2D clock acquisition portion, an R2D frequency synchronization signal, an R2D post synchronization signal, or R2D postamble; the second R2D channel includes a physical reader-writer to device channel PRDCH.
  9. 9. The method of any one of claims 2 to 8, wherein the waveform of the first R2D signal or the first R2D channel is an on-off keying OOK waveform, or The waveform of the first R2D signal or the first R2D channel is a single-tone continuous sine wave.
  10. 10. The method according to any of claims 2 to 9, wherein PRDCH and/or the number of chips of a physical device-to-reader channel PDRCH within one symbol transmitted by the device after the first R2D signal or the first R2D channel is associated with the chip length within the first R2D signal or the first R2D channel.
  11. 11. The method according to any one of claims 3 to 10, wherein the parameters of the second R2D signal comprise at least one of a transmission period of the second R2D signal, a start position of the second R2D signal within one transmission period, a transmission length of the first R2D signal or first R2D channel within one transmission period; The parameters of the second R2D channel include at least one of a transmission period of the second R2D channel, a start position of the second R2D channel within one transmission period, and a transmission length of the second R2D channel within one transmission period.
  12. 12. The method according to any one of claims 1 to 11, further comprising: the device transmits a D2R transmission based on the calibrated SFO, the D2R transmission comprising a D2R signal or a D2R channel.
  13. 13. The method according to any one of claims 1 to 12, wherein the parameters of the D2R transmission comprise at least one of: the number of midambles; an indication of whether postamble is transmitted; Indication of transmission parameters of D2R.
  14. 14. The method according to any one of claims 2 to 13, wherein the content indicated by the R2D indication information comprises at least one of: SFO calibration accuracy; SFO calibration accuracy corresponding to at least one equipment type; information for implicitly indicating the accuracy of the SFO calibration.
  15. 15. The method according to any one of claims 1 to 14, wherein in case the device type of the device is a first device type: the device determines or expects the R2D transmission received by the device to bring the SFO calibration accuracy to a third value, or The apparatus does not require SFO calibration accuracy to a fourth value, or The equipment requires or expects SFO calibration accuracy to be a third value or not less than the third value; Wherein the third value is less than the fourth value.
  16. 16. The method according to any one of claims 1 to 15, wherein in case the device type of the device is a second device type: The device determines or expects the R2D transmission received by the device to bring the SFO calibration accuracy to a fourth value, or The equipment requires SFO calibration accuracy to be not less than a third value, or The equipment requires or expects SFO calibration accuracy to be a fourth value or not less than the fourth value; Wherein the third value is less than the fourth value.
  17. 17. The method according to any one of claims 2 to 16, wherein in the first condition the behaviour of the device comprises at least one of: Detecting or receiving the complete first R2D signal or the first R2D channel; Detecting or receiving a portion of the first R2D signal or a portion of the first R2D channel, wherein it is not required to detect or receive the first R2D signal or the first R2D channel with a length greater than L1, or at least it is required to detect the R2D signal or the first R2D channel with a length of L1, L1 being a positive integer; No requirement to detect or receive a second R2D signal or a second R2D channel; Wherein the first condition includes at least one of: the type of the equipment is a first equipment type; The device determines or expects that the R2D transmission received by the device causes the SFO calibration accuracy to reach a first value; The device does not require SFO calibration accuracy to be a second value; the equipment requires or expects SFO calibration accuracy to be a first value or not less than a first value; Wherein the first value is less than the second value.
  18. 18. The method according to any one of claims 2 to 17, wherein in the second condition the behaviour of the device comprises at least one of: Detecting or receiving the complete first R2D signal or the first R2D channel; Detecting or receiving the first R2D signal or the first R2D channel of L2 length or not less than L2 length; The transmission length of the first R2D signal or the first R2D channel is expected to be greater than or equal to L2; requiring detection or reception of a second R2D signal or a second R2D channel, or desiring detection or reception of a second R2D signal or a second R2D channel; wherein the second condition includes at least one of: the type of the equipment is a second equipment type; the device determines or expects that the R2D transmission received by the device causes the SFO calibration accuracy to reach a second value; The device requires SFO calibration accuracy to be not less than a first value; the equipment requires or expects SFO calibration accuracy to be a second value or not less than the second value; Wherein the first value is less than the second value.
  19. 19. The method of claim 18, wherein the SFO calibration accuracy of the device reaches the second value if the device detects or receives a second R2D signal or a SFO calibration accuracy corresponding to a transmission length of a second R2D channel is the second value.
  20. 20. A method of message transmission, comprising: The reader/writer performs a first operation including at least one of: transmitting a reader-writer to a device R2D transmission, the R2D transmission for sampling frequency offset SFO calibration; and receiving device-to-reader D2R transmission, wherein parameters of the D2R transmission are used for SFO calibration.

Description

Calibration method, message transmission method, device and equipment Technical Field The application belongs to the technical field of communication, and particularly relates to a calibration method, a message transmission device and equipment. Background There are often multiple types of devices in practical applications, for example, for the environment internet of things (a-IoT) including multiple types of a-IoT devices, such as devices that do not have independent signal generation capabilities, devices that have independent signal generation capabilities, and so on. Thus, how to meet the sampling frequency offset (Sampling frequency offset, SFO) calibration requirements of different types of devices is a technical problem that needs to be solved. Disclosure of Invention The embodiment of the application provides a calibration method, a message transmission device and equipment, which can solve the problem of how to meet SFO calibration requirements of different types of equipment. In a first aspect, a calibration method is provided, comprising: The Device performs SFO calibration based on at least one of a Reader-to-Device (R2D) message, a Device-to-Reader (D2R) message, and a Device type; wherein the R2D transmission is used for SFO calibration; the D2R transmitted parameters are used for SFO calibration. In a second aspect, a message transmission method is provided, including: The reader/writer performs a first operation including at least one of: Transmitting an R2D transmission, the R2D transmission being used for SFO calibration; a D2R transmission is received, and parameters of the D2R transmission are used for SFO calibration. In a third aspect, there is provided a calibration device comprising: A processing module for performing SFO calibration based on at least one of R2D transmission, D2R transmission, and device type; wherein the R2D transmission is used for SFO calibration; the D2R transmitted parameters are used for SFO calibration. In a fourth aspect, there is provided a message transmission apparatus comprising: a processing module for performing a first operation, the first operation comprising at least one of: Transmitting an R2D transmission, the R2D transmission being used for SFO calibration; a D2R transmission is received, and parameters of the D2R transmission are used for SFO calibration. In a fifth aspect, there is provided a calibration device configured to perform the steps of the method of the first aspect. In a sixth aspect, there is provided a message transmission apparatus configured to perform the steps of the method according to the second aspect. In a seventh aspect, there is provided an apparatus comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect. In an eighth aspect, there is provided an apparatus, including a processor and a communication interface, where the processor is configured to perform SFO calibration based on at least one of an R2D transmission, a D2R transmission, and an apparatus type, where the R2D transmission is used for SFO calibration, and a parameter of the D2R transmission is used for SFO calibration. In a ninth aspect, there is provided a reader/writer comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect. In a tenth aspect, a reader is provided that includes a processor and a communication interface, wherein the communication interface is configured to perform a first operation including at least one of sending an R2D transmission, the R2D transmission being used for SFO calibration, and receiving a D2R transmission, a parameter of the D2R transmission being used for SFO calibration. In an eleventh aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the first aspect. In a twelfth aspect, a terminal is provided, which includes a processor and a communication interface, where the processor is configured to perform SFO calibration based on at least one of R2D transmission, D2R transmission, and a device type, where the R2D transmission is used for SFO calibration, and a parameter of the D2R transmission is used for SFO calibration. In a thirteenth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect. In a fourteenth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is configured to perform a first operation, the first operation c