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CN-122002628-A - Communication method and device

CN122002628ACN 122002628 ACN122002628 ACN 122002628ACN-122002628-A

Abstract

The embodiment of the application provides a communication method and a communication device, relates to the field of communication, and aims to solve the problem that terminal equipment without or supporting GNSS cannot access an NTN (network time slot). In the method, the first terminal device may send the first information to the second terminal device according to the first indication information received from the network device. Based on the first terminal device supporting GNSS, the first terminal device can acquire own position information by combining the positioning capability provided by the GNSS, and can calculate information required by the access network device according to the own position information. The first terminal device may send information required for the access to the network device to the second terminal device that is not capable of GNSS through the first information, to assist or be used for the second terminal device to access to the network device and communicate with the network device.

Inventors

  • YU TIANHANG
  • LUO HEJIA
  • QIAO YUNFEI
  • WANG XIAOLU

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241101

Claims (20)

  1. 1. A communication method, applied to a first terminal device, comprising: Receiving first indication information from network equipment, wherein the first indication information is used for indicating to send first information to second terminal equipment, and the first information is used for the second terminal equipment to communicate with the network equipment; and sending the first information to the second terminal equipment according to the first indication information.
  2. 2. The method of claim 1, wherein the first indication information is further used to indicate a connection to be established with a second terminal device, and wherein prior to the sending the first information to the second terminal device based on the first indication information, the method further comprises: and establishing connection with the second terminal equipment according to the first indication information, wherein the connection is a side downlink connection or a non-third generation partnership project (3 GPP) connection.
  3. 3. The method according to claim 2, wherein the method further comprises: transmitting first capability information to the second terminal equipment, wherein the first capability information is used for indicating the first terminal equipment to support the GNSS; Receiving a first request from the second terminal equipment, wherein the first request is used for requesting to send the first information to the second terminal equipment; the sending the first information to the second terminal device according to the first indication information includes: and sending the first information to the second terminal equipment according to the first request and the first indication information.
  4. 4. The method of claim 1, wherein the first indication information is used for indicating to send first information to the second terminal device, and comprises the first indication information is used for indicating to send the first information to the second terminal device in a broadcast mode; the sending the first information to the second terminal device according to the first indication information includes: and according to the first indication information, sending the first information to the second terminal equipment through the broadcasting form.
  5. 5. The method of claim 4, wherein the first information has an association with a side-uplink system message, the association comprising at least one of: the first information is carried in the side uplink system message; the side-uplink system message is used for indicating the time-frequency resource occupied by the first information, or The association relation between the side-link synchronous signal and the time-frequency resource occupied by the first information is preconfigured or predefined, and the side-link system message is used for indicating whether the first terminal equipment sends the first information or not.
  6. 6. A communication method, applied to a first terminal device, comprising: Receiving a first request from a second terminal device, wherein the first request is used for requesting to send first information to the second terminal device, and the first information is used for the second terminal device to communicate with a network device; And sending the first information to the second terminal equipment according to the first request.
  7. 7. The method of claim 6, wherein prior to said receiving the first request from the second terminal device, the method further comprises: transmitting first capability information to the second terminal equipment, wherein the first capability information is used for indicating the first terminal equipment to support the GNSS; and establishing a connection with the second terminal device, wherein the connection is a side-link connection or a non-third generation partnership project (3 GPP) connection.
  8. 8. The method according to claim 3 or 7, wherein the connection is the side-uplink connection, wherein the first capability information is carried in a side-uplink system message, or wherein transmitting the first capability information to the second terminal device comprises: And after the connection is established with the second terminal equipment, the first capability information is sent to the second terminal equipment.
  9. 9. The method according to any of claims 3, or 6-8, wherein the first request comprises a second cell identity indicating a candidate cell for the second terminal device, the method further comprising: Determining a first parameter associated with the second cell identifier according to the second cell identifier; And determining the first information according to the first parameter associated with the second cell identification.
  10. 10. The method according to any one of claims 1-9, further comprising: Updating the first information according to a first period to obtain updated first information; And sending the updated first information to the second terminal equipment.
  11. 11. The method of any of claims 1-10, wherein the first information comprises one or more first parameters, each of the one or more first parameters comprising at least one of: The timing advance information comprises timing advance TA and/or time-varying information of the TA; The device comprises first frequency offset information, second frequency offset information and a second frequency offset information, wherein the first frequency offset information comprises frequency offset and/or time-varying information of the frequency offset; The time information is used for indicating the effective time of the first parameter; the reference position information is used for the second terminal equipment to calculate the TA and the frequency offset; ephemeris information of the network device; Second timing advance information, wherein the second timing advance information comprises TA bias and/or time-varying information of the TA bias, or And the second frequency offset information comprises frequency offset and/or time-varying information of the frequency offset.
  12. 12. The method of claim 11, wherein the first information further comprises one or more first cell identities, the one or more first cell identities being associated with the one or more first parameters.
  13. 13. The method according to any one of claims 1-12, further comprising: the second indication information is used for the second terminal equipment to determine whether to use the first information to communicate with the network equipment; And when a first condition is met, the second terminal equipment determines to use the first information to communicate with the network equipment, wherein the first condition comprises at least one of the following: the received signal power of the second terminal device is greater than or equal to a first power threshold value; The path loss between the first terminal device and the second terminal device is smaller than or equal to a second power threshold value; The first time is less than or equal to a time threshold value, wherein the first time is the time difference between the moment when the second terminal equipment receives the first information and the moment when the second terminal equipment uses the first information to communicate with the network equipment, or The beam identifier of the network device determined by the second terminal device is the same as the beam identifier associated with the first information.
  14. 14. A communication method, applied to a second terminal device, comprising: Receiving first information from a first terminal device; the second terminal equipment does not support a Global Navigation Satellite System (GNSS), and the first terminal equipment supports the GNSS; And communicating with the network equipment according to the first information.
  15. 15. The method of claim 14, wherein the first information comprises one or more first parameters, each of the one or more first parameters comprising at least one of: The timing advance information comprises timing advance TA and/or time-varying information of the TA; The device comprises first frequency offset information, second frequency offset information and a second frequency offset information, wherein the first frequency offset information comprises frequency offset and/or time-varying information of the frequency offset; The time information is used for indicating the effective time of the first parameter; the reference position information is used for the second terminal equipment to calculate the TA and the frequency offset; ephemeris information of the network device; Second timing advance information, wherein the second timing advance information comprises TA bias and/or time-varying information of the TA bias, or And the second frequency offset information comprises frequency offset and/or time-varying information of the frequency offset.
  16. 16. The method of claim 15, wherein the first information further comprises one or more first cell identities, the one or more first cell identities being associated with the one or more first parameters.
  17. 17. The method according to any of claims 14-16, characterized in that before said receiving the first information from the first terminal device, the method further comprises: And establishing a connection with the first terminal device, wherein the connection is a side-link connection or a non-third generation partnership project (3 GPP) connection.
  18. 18. The method of claim 17, wherein prior to said receiving said first information from the first terminal device, the method further comprises: receiving first capability information from the first terminal equipment, wherein the first capability information is used for indicating the first terminal equipment to support the GNSS; And sending a first request to the first terminal equipment according to the first capability information and the second capability information, wherein the first request is used for requesting to send the first information to the second terminal equipment, and the second capability information is used for indicating that the second terminal equipment does not support the GNSS.
  19. 19. The method of claim 18, wherein the connection is the side-uplink connection, wherein the first capability information is carried in a side-uplink system message, or wherein the receiving the first capability information from the first terminal device comprises: And after the connection is established with the first terminal equipment, receiving first capability information from the first terminal equipment.
  20. 20. The method according to any of claims 17-19, characterized in that before said receiving the first information from the first terminal device, the method further comprises: Receiving third indication information from the network equipment, wherein the third indication information is used for indicating the establishment of connection with the first terminal equipment and receiving first information from the first terminal equipment; The establishing connection with the first terminal device includes: Establishing connection with the first terminal equipment according to the third indication information; said receiving said first information from the first terminal device comprises: and receiving the first information from the first terminal equipment according to the third indication information.

Description

Communication method and device Technical Field The present application relates to the field of communications, and in particular, to a communication method and apparatus. Background Non-terrestrial network (non-TERRESTRIAL NETWORK, NTN) communication has the advantages of wide coverage, long communication distance, high reliability, high flexibility, high throughput and the like, is not influenced by geographical environment, climate conditions and natural disasters, and has been widely applied to the fields of aviation communication, maritime communication, military communication and the like. Currently, a terminal device may access an NTN network when it is equipped with or supports a global navigation satellite system (global navigation SATELLITE SYSTEM, GNSS). However, if the terminal device does not have or support GNSS, the terminal device may not access the NTN network. Disclosure of Invention The embodiment of the application provides a communication method and a communication device, which are used for solving the problem that terminal equipment without or supporting GNSS cannot access an NTN network. In order to achieve the above purpose, the application adopts the following technical scheme: In a first aspect, a communication method is provided. The method can be applied to the first terminal device side, for example, the first terminal device or a communication module in the first terminal device, or a circuit or a chip (such as a modem (modem) chip, also called a baseband (baseband) chip, or a system on chip (SoC) chip or a system in package (SYSTEM INPACKAGE, SIP) chip) containing the modem core, which is responsible for communication functions in the first terminal device. For convenience of description, the following description will be given by taking an example in which the method is applied to the first terminal device. The method comprises the steps of receiving first indication information from the network equipment and sending the first information to the second terminal equipment according to the first indication information. The first indication information is used for indicating to send first information to the second terminal equipment, the first information is used for enabling the second terminal equipment to communicate with the network equipment, the first terminal equipment supports a Global Navigation Satellite System (GNSS), and the second terminal equipment does not support the GNSS. Based on the method of the first aspect, the first terminal device may send the first information to the second terminal device according to the first indication information received from the network device. Based on the first terminal device supporting GNSS, the first terminal device can acquire own position information by combining the positioning capability provided by the GNSS, and can calculate information required by the access network device according to the own position information. The first terminal device may send information required for the access to the network device to the second terminal device that is not capable of GNSS through the first information, to assist or be used for the second terminal device to access to the network device and communicate with the network device. Based on the above, when the network device is a non-terrestrial network device, the second terminal device may access the non-terrestrial network device by using the first information sent by the first terminal device, so that the problem that the terminal device without or without supporting GNSS, that is, the second terminal device cannot access the NTN network (that is, the non-terrestrial network device) can be solved. In one possible design, the first information comprises one or more first parameters, each of the one or more first parameters comprises at least one of first timing advance information, first frequency offset information, reference position information, ephemeris information of the network device, second timing advance information, or second frequency offset information, wherein the first timing advance information comprises Timing Advance (TA) and/or time-varying information of the TA, the first frequency offset information comprises frequency offset and/or time-varying information of the frequency offset, the time information is used for indicating effective time of the first parameters, the reference position information is used for calculating TA and frequency offset by the second terminal device, ephemeris information of the network device, the second timing advance information comprises TA offset and/or time-varying information of the TA offset, or the second frequency offset information comprises frequency offset and/or time-varying information of the frequency offset. That is, the first information includes information required by the second terminal device to access the network device, and the first terminal device may select, according to a specific scenario, to send one or m