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US-12621784-B2 - Information transmission method, terminal device, and network device

US12621784B2US 12621784 B2US12621784 B2US 12621784B2US-12621784-B2

Abstract

The present application relates to an information transmission method, a terminal device, and a network device. The information transmission method comprises: a terminal device receives synchronization assistance information, the synchronization assistance information having a first association relationship with first information; the terminal device is synchronized according to the synchronization assistance information.

Inventors

  • Zuomin WU

Assignees

  • GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Dates

Publication Date
20260505
Application Date
20230929

Claims (15)

  1. 1 . A method of information transmission, comprising: receiving, by a terminal device, synchronization assistance information, wherein the synchronization assistance information has a first association relationship with first information; and acquiring synchronization, by the terminal device, according to the synchronization assistance information; wherein the synchronization assistance information comprises at least one set of ephemeris information, a first ephemeris information group in the at least one set of ephemeris information comprises at least one first ephemeris information, and the first ephemeris information group has the first association relationship with the first information; and wherein the at least one set of ephemeris information comprises a second ephemeris information group, the second ephemeris information group comprises at least one second ephemeris information, and the second ephemeris information group has a second association relationship with the first information.
  2. 2 . The method according to claim 1 , wherein the first information comprises at least one of: time information, ephemeris information format, group identifier, reference signal index, cell identifier, antenna polarization mode, satellite identifier, serving satellite, service duration of serving satellite, satellite to provide service, time when satellite to provide service starts service, the service duration of satellite to provide service, satellite to not provide service, and time when satellite to not provide service stops service.
  3. 3 . The method according to claim 1 , wherein the synchronization assistance information is used to determine at least one of: ephemeris information, common timing advance TA value, common TA value change information, common frequency offset value, common frequency offset value change information, terminal device position information, and reference point information; wherein, the ephemeris information is used to determine at least one of satellite position information or satellite velocity information.
  4. 4 . The method according to claim 1 , wherein the second association relationship is obtained through at least one of system message, handover command, RRC signaling, MAC CE and DCI; or the second association relationship is obtained according to a predefined rule.
  5. 5 . The method according to claim 1 , wherein: the at least one piece of first ephemeris information comprised in the first ephemeris information group and the at least one piece of second ephemeris information comprised in the second ephemeris information group correspond to a same time.
  6. 6 . The method according to claim 1 , wherein the first association relationship is obtained through at least one of system message, handover command, RRC signaling, MAC CE and DCI; or the first association relationship is obtained according to a predefined rule.
  7. 7 . A terminal device, comprising: a processor and a memory, the memory being configured to store a computer program, which when executed by the processor causes the terminal device to: receive synchronization assistance information, wherein the synchronization assistance information has a first association relationship with first information; and acquire synchronization according to the synchronization assistance information; wherein the synchronization assistance information comprises at least one set of ephemeris information, a first ephemeris information group in the at least one set of ephemeris information comprises at least one first ephemeris information, and the first ephemeris information group has the first association relationship with the first information; and wherein the at least one set of ephemeris information comprises a second ephemeris information group, the second ephemeris information group comprises at least one second ephemeris information, and the second ephemeris information group has a second association relationship with the first information.
  8. 8 . The terminal device according to claim 7 , wherein the first information comprises at least one of: time information, ephemeris information format, group identifier, reference signal index, cell identifier, antenna polarization mode, satellite identifier, serving satellite, service duration of serving satellite, satellite to provide service, time when satellite to provide service starts service, the service duration of satellite to provide service, satellite to not provide service, and time when satellite to not provide service stops service.
  9. 9 . The terminal device according to claim 7 , wherein the synchronization assistance information is used to determine at least one of: ephemeris information, common timing advance TA value, common TA value change information, common frequency offset value, common frequency offset value change information, terminal device position information, and reference point information; wherein, the ephemeris information is used to determine at least one of satellite position information or satellite velocity information.
  10. 10 . A network device, comprising: a processor and a memory, the memory being configured to store a computer program, which when executed by the processor, causes the network device to: send synchronization assistance information, wherein the synchronization assistance information has a first association relationship with first information; wherein the synchronization assistance information is used to enable a terminal device to acquire synchronization; wherein the synchronization assistance information comprises at least one set of ephemeris information, a first ephemeris information group in the at least one set of ephemeris information comprises at least one first ephemeris information, and the first ephemeris information group has the first association relationship with the first information; and wherein the at least one set of ephemeris information comprises a second ephemeris information group, the second ephemeris information group comprises at least one second ephemeris information, and the second ephemeris information group has a second association relationship with the first information.
  11. 11 . The network device according to claim 10 , wherein the first information comprises at least one of: time information, ephemeris information format, group identifier, reference signal index, cell identifier, antenna polarization mode, satellite identifier, serving satellite, service duration of serving satellite, satellite to provide service, time when satellite to provide service starts service, the service duration of satellite to provide service, satellite to not provide service, and time when satellite to not provide service stops service.
  12. 12 . The network device according to claim 10 , wherein the synchronization assistance information is used to determine at least one of: ephemeris information, common timing advance TA value, common TA value change information, common frequency offset value, common frequency offset value change information, terminal device position information, and reference point information; wherein, the ephemeris information is used to determine at least one of satellite position information or satellite velocity information.
  13. 13 . The network device according to claim 10 , wherein the second association relationship is obtained through at least one of system message, handover command, RRC signaling, MAC CE and DCI; or the second association relationship is obtained according to a predefined rule.
  14. 14 . The network device according to claim 10 , wherein the at least one piece of first ephemeris information comprised in the first ephemeris information group and the at least one piece of second ephemeris information comprised in the second ephemeris information group correspond to a same time.
  15. 15 . The network device according to claim 10 , wherein the first association relationship is obtained through at least one of system message, handover command, RRC signaling, MAC CE and DCI; or the first association relationship is obtained according to a predefined rule.

Description

CROSS REFERENCE The present application is a continuation of International Application No. PCT/CN2021/084164, filed Mar. 30, 2021, the entire disclosure of which is incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to the field of communication, and more specifically, to an information transmission method, a terminal device and a network device. BACKGROUND Nowadays, 3GPP is researching Non Terrestrial Network (NTN, non-terrestrial communication network device) technology. NTN generally provides communication services to ground users in the form of satellite communication. Compared with terrestrial cellular network communication, satellite communication has many unique advantages. First of all, satellite communication is not restricted by the user's region. For example, general land communication cannot cover areas such as oceans, mountains, deserts, etc. where communication equipment cannot be set up or the areas where communication coverage is not provided due to sparse population. As for satellite communication, since a satellite can cover a larger ground, and the satellite can orbit around the earth. So theoretically every corner of the earth can be covered by satellite communications. Secondly, satellite communication has great social value. Satellite communication can be covered at a lower cost in remote mountainous areas, poor and backward countries or regions, so that people in these regions can enjoy advanced voice communication and mobile Internet technology, which is conducive to narrowing the digital gap with developed regions and promoting development of these areas. Thirdly, the satellite communication distance is long, and the cost of communication does not increase significantly as the communication distance increases. Finally, satellite communication has high stability and is not limited by natural disasters. In complex network deployment scenarios, for example, a ground station may relay signals through multiple service satellites to serve multiple ground cells on the ground. SUMMARY Embodiments of the present application provide an information transmission method, a terminal device, and a network device. An embodiment of the present application provides an information transmission method, including: A terminal device receives synchronization assistance information, wherein the synchronization assistance information has a first association relationship with first information; andThe terminal device acquires synchronization according to the synchronization assistance information. An embodiment of the present application provides an information transmission method, including: A network device sends synchronization assistance information, wherein the synchronization assistance information has a first association relationship with first information;wherein the synchronization assistance information is used to enable a terminal device to acquire synchronization. An embodiment of the present application provides a terminal device, including: a receiving unit, configured to receive synchronization assistance information, wherein the synchronization assistance information has a first association relationship with first information; anda synchronization unit, configured to acquire synchronization according to the synchronization assistance information. An embodiment of the present application provides a network device, including: a sending unit, configured to send synchronization assistance information, wherein the synchronization assistance information has a first association relationship with the first information;wherein the synchronization assistance information is used to enable a terminal device to acquire synchronization. An embodiment of the present application provides a terminal device, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the terminal device executes the above information transmission method. An embodiment of the present application provides a network device, including a processor and a memory. The memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory, so that the network device executes the above information transmission method. An embodiment of the present application provides a chip configured to implement the above information transmission method. Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes the above-mentioned information transmission method. An embodiment of the present application provides a computer-readable storage medium for storing a computer program, and when the computer program is run by a device, the device is made to execute the above information transmission method. An embodiment of the present application provides