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CN-122028203-A - Communication method and device and electronic equipment

CN122028203ACN 122028203 ACN122028203 ACN 122028203ACN-122028203-A

Abstract

Provided are a communication method, a communication device and an electronic device. The first method includes receiving a downlink broadcast message, wherein the downlink broadcast message includes a plurality of time-frequency resource information, the plurality of time-frequency resource information is used for transmitting the same first signal, performing frequency compensation on the first signal based on at least one pre-compensation frequency to determine a first compensation frequency, performing frequency compensation on the first signal with the first compensation frequency, determining a second compensation frequency of the first signal based on the compensated first signal, and determining a target compensation frequency based on the first compensation frequency and the second compensation frequency. The second method includes receiving uplink broadcast information, wherein the uplink broadcast information comprises a plurality of time-frequency resource information, the plurality of time-frequency resource information is used for sending the same second signals, acquiring time offset correction parameters of the second signals based on periodic characteristic parameters of the second signals, and correcting the second signals based on the time offset correction parameters to acquire time offset corrected second signals. According to the exemplary embodiment, communication efficiency is improved.

Inventors

  • ZHANG YUANYU
  • WU HAITAO
  • WU DI
  • ZENG GUANGYU
  • PAN SHUMING

Assignees

  • 中国星网网络系统研究院有限公司

Dates

Publication Date
20260512
Application Date
20250624

Claims (20)

  1. 1. A communication method applied to a terminal device, comprising: Receiving a downlink broadcast message, wherein the downlink broadcast message comprises a plurality of time-frequency resource information, and the plurality of time-frequency resource information is used for transmitting the same first signal; frequency compensating the first signal based on at least one precompensation frequency to determine a first compensation frequency; performing frequency compensation on the first signal at the first compensation frequency, and determining a second compensation frequency of the first signal based on the compensated first signal; a target compensation frequency is determined based on the first compensation frequency and the second compensation frequency.
  2. 2. The communication method of claim 1, wherein frequency compensating the first signal based on at least one precompensated frequency comprises frequency compensating the first signal based on at least one precompensated frequency within a frequency compensation interval.
  3. 3. The communication method of claim 2, wherein frequency compensating the first signal based on at least one precompensation frequency within a frequency compensation interval comprises traversing precompensation frequencies within the frequency compensation interval and frequency compensating the first signal based on the precompensation frequencies, respectively.
  4. 4. A communication method as claimed in claim 3, wherein the frequency spacing between the precompensated frequencies within the frequency compensation interval is less than the frequency spacing between the sub-carriers.
  5. 5. The communication method of claim 1, wherein frequency compensating the first signal based on at least one precompensated frequency to determine a first compensation frequency comprises: respectively carrying out frequency compensation on each first signal based on at least one precompensation frequency to generate a plurality of compensated first signals; and obtaining the precompensation frequency corresponding to the maximum first autocorrelation result of the plurality of compensated first signals and the reference signal as a first compensation frequency.
  6. 6. A communication method as defined in claim 5, wherein the reference signal is generated by NID2 acquired by the terminal device from the first signal.
  7. 7. The communication method of claim 1, wherein frequency compensating the first signal at the first compensation frequency, determining a second compensation frequency for the first signal based on the compensated first signal comprises: and carrying out frequency compensation on the first signals by using the first compensation frequency, calculating the compensation frequency of each compensated first signal by using the signal cyclic prefix autocorrelation characteristic, and taking the average value of the compensation frequencies of each compensated first signal as a second compensation frequency.
  8. 8. The communication method of claim 1, further comprising transmitting a second signal comprising a frequency offset corrected signal of the initial second signal using the target compensation frequency.
  9. 9. A communication method applied to a network device, comprising: Receiving uplink broadcast information, wherein the uplink broadcast information comprises a plurality of time-frequency resource information, and the plurality of time-frequency resource information is used for transmitting the same second signals; acquiring a time offset correction parameter of the second signal based on the periodic characteristic parameter of the second signal; And correcting the second signal based on the time offset correction parameter to obtain the second signal after time offset correction.
  10. 10. The communication method of claim 9, wherein obtaining the time offset correction parameter for the second signal based on the periodic characteristic parameter for the second signal comprises obtaining the time offset correction parameter for the second signal based on the periodic characteristic parameter for the second signal that is valid.
  11. 11. The communication method of claim 10, wherein the method further comprises: calculating a second autocorrelation result of the second signal and a reference signal sequence; and determining that the second signal is a valid second signal based on the maximum value of the second autocorrelation result being greater than a first detection threshold.
  12. 12. The communication method of claim 11, further comprising generating the reference signal sequence based on a root sequence of the received second signal.
  13. 13. The communication method of claim 11, wherein the method further comprises: determining an average value of the detection threshold values calculated by the second signals as a second detection threshold value; The first detection threshold value is determined based on the second detection threshold value and a third detection threshold value, wherein the third detection threshold value is the minimum value of the required detection threshold values.
  14. 14. The communication method of claim 11, wherein in the step of calculating second autocorrelation results for the received second signal and the reference signal sequence, the second autocorrelation results are a sum of all third autocorrelation results, wherein the third autocorrelation results are autocorrelation results for each second signal and the reference signal sequence.
  15. 15. The communication method of claim 14, wherein the third autocorrelation result is a sum of fourth autocorrelation results, wherein the fourth autocorrelation results are autocorrelation results of segments of each second signal with the reference signal sequence.
  16. 16. The communication method of claim 9, wherein the periodic characteristic parameter of the second signal comprises a number of cyclic shifts of the second signal.
  17. 17. The communication method of claim 16, wherein a second autocorrelation result location where the time offset correction parameter is maximum is determined based on the number of cyclic shifts being equal to 0, wherein the second autocorrelation result is calculated from the second signal and a sequence of reference signals.
  18. 18. The communication method according to claim 16, wherein the cyclic shift number is corrected based on the cyclic shift number not being equal to 0, and the time offset correction parameter is obtained based on the corrected cyclic shift number.
  19. 19. A communication apparatus applied to a terminal device, comprising: A first receiving module configured to receive a downlink broadcast message, where the downlink broadcast message includes a plurality of time-frequency resource information, and the plurality of time-frequency resource information is used to send the same first signal; A first determination module configured to frequency compensate the first signal based on at least one precompensation frequency to determine a first compensation frequency; a second determination module configured to frequency compensate the first signal at the first compensation frequency, determine a second compensation frequency of the first signal based on the compensated first signal; A third determination module configured to determine a target compensation frequency based on the first compensation frequency and the second compensation frequency.
  20. 20. A communication apparatus for use in a network device, comprising: A second receiving module configured to receive uplink broadcast information, where the uplink broadcast information includes a plurality of time-frequency resource information, and the plurality of time-frequency resource information is used to send the same second signal; A first acquisition module configured to acquire a time offset correction parameter of the second signal based on a periodic characteristic parameter of the second signal; And the second acquisition module is configured to correct the second signal based on the time offset correction parameter so as to acquire the second signal after time offset correction.

Description

Communication method and device and electronic equipment Technical Field The present disclosure relates to the field of wireless communications technologies, and in particular, to a communication method, an apparatus, and an electronic device. Background With the continuous development of wireless communication systems, a random access method is widely applied to the fields of mobile communication, internet of things and the like as an important access mechanism, and allows a plurality of users to enter a communication network at the same time, so that quick and efficient resource sharing is realized. However, under high-density, complex wireless network environments, conventional random access methods face a number of challenges, such as collisions, interference, system throughput degradation, and so forth. Conventional random access methods typically process each access request independently in time, which may lead to an increase in collision rate in high user density scenarios, thereby affecting communication performance. Furthermore, the limited spectrum resources also have an impact on the efficiency of random access, especially in high capacity communication systems. Some methods attempt to improve performance by improving conventional random access protocols, such as carrier sense-based methods, reserved access mechanisms, etc., but these methods still have problems of inefficiency and interference in multi-user environments. Disclosure of Invention Provided are a communication method, a communication device and an electronic device. In a first aspect, a communication method is provided and applied to a terminal device, and the communication method comprises the steps of receiving a downlink broadcast message, wherein the downlink broadcast message comprises a plurality of pieces of time-frequency resource information, the plurality of pieces of time-frequency resource information are used for sending identical first signals, performing frequency compensation on the first signals based on at least one pre-compensation frequency to determine first compensation frequencies, performing frequency compensation on the first signals with the first compensation frequencies, determining second compensation frequencies of the first signals based on the compensated first signals, and determining target compensation frequencies based on the first compensation frequencies and the second compensation frequencies. In a second aspect, a communication method is provided and applied to network equipment, and the communication method comprises the steps of receiving uplink broadcast information, wherein the uplink broadcast information comprises a plurality of time-frequency resource information, the plurality of time-frequency resource information is used for sending the same second signals, acquiring time offset correction parameters of the second signals based on periodic characteristic parameters of the second signals, and correcting the second signals based on the time offset correction parameters to acquire the second signals after time offset correction. In a third aspect, a communication apparatus is provided, applied to a terminal device, and includes a first receiving module configured to receive a downlink broadcast message, where the downlink broadcast message includes a plurality of time-frequency resource information, where the plurality of time-frequency resource information is used to transmit a same first signal, a first determining module configured to perform frequency compensation on the first signal based on at least one pre-compensation frequency to determine a first compensation frequency, a second determining module configured to perform frequency compensation on the first signal with the first compensation frequency, determine a second compensation frequency of the first signal based on the compensated first signal, and a third determining module configured to determine a target compensation frequency based on the first compensation frequency and the second compensation frequency. In a fourth aspect, a communication apparatus is provided, which is applied to a network device, and includes a second receiving module configured to receive uplink broadcast information, where the uplink broadcast information includes a plurality of time-frequency resource information, and the plurality of time-frequency resource information is used to send the same second signal, a first obtaining module configured to obtain a time offset correction parameter of the second signal based on a periodic characteristic parameter of the second signal, and a second obtaining module configured to correct the second signal based on the time offset correction parameter to obtain the second signal after time offset correction. In a fifth aspect there is provided an electronic device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement