CN-122029900-A - Communication method, device, medium, and computer program product

Abstract

The present disclosure relates to a communication method, apparatus, medium and computer program product. The method executed by the first network device comprises the steps of obtaining position information of a second network device on the ground, and carrying out frequency domain compensation on signals on a control link between the first network device on the satellite and the second network device on the ground according to ephemeris information of the satellite and the position information of the second network device. The method and the device can improve the communication quality of the control link.

Inventors

• LIU MIN

Assignees

• 北京小米移动软件有限公司

Dates

Publication Date

20260512

Application Date

20240909

Claims (20)

1. A method of communication, performed by a first network device on a satellite, the method comprising: acquiring position information of second network equipment on the ground; And carrying out frequency domain compensation on signals on a control link between the first network device and the second network device according to the ephemeris information of the satellite and the position information of the second network device.
2. The method of claim 1, wherein the first network device has the capability of receiving control commands sent by the second network device and controlling the behavior of transponders on the satellites in accordance with the control commands.
3. The method according to claim 1 or2, wherein the location information of the second network device is obtained from at least one of the following messages sent by the second network device: a radio resource control, RRC, message; a medium access control element MAC CE; broadcasting a message; operation, maintenance and administration OAM messages.
4. A method according to any of claims 1-3, wherein the frequency domain compensating of signals on a control link between the first network device and the second network device based on ephemeris information of satellites and position information of the second network device comprises: Determining first Doppler frequency offset information corresponding to the control link according to ephemeris information of the satellite and position information of the second network equipment; And performing frequency domain compensation on uplink signals and/or downlink signals of the control link according to the first Doppler frequency offset information in the process that the first network equipment is randomly accessed to the second network equipment and/or after the first network equipment is successfully accessed to the second network equipment, wherein the uplink signals are signals sent to the second network equipment by the first network equipment, and the downlink signals are signals sent to the first network equipment by the second network equipment.
5. A method of communication, performed by a first network device on a satellite, the method comprising: Acquiring position information of a second network device on the ground and frequency precompensation information of the second network device on a downlink signal of a control link, wherein one end of the control link is the first network device, the other end of the control link is the second network device, and the downlink signal is a signal sent by the second network device to the first network device; And carrying out frequency domain compensation on an uplink signal of the control link according to the ephemeris information of the satellite, the position information of the second network equipment and the frequency precompensation information, wherein the uplink signal is a signal sent to the second network equipment by the first network equipment.
6. The method of claim 5, wherein the first network device has the capability of receiving control commands sent by the second network device and controlling the behavior of transponders on the satellites in accordance with the control commands.
7. The method according to claim 6, wherein the frequency pre-compensation information and/or the location information of the second network device is obtained from at least one of the following messages sent by the second network device: a radio resource control, RRC, message; a medium access control element MAC CE; broadcasting a message; operation, maintenance and administration OAM messages.
8. The method according to any one of claims 5-7, wherein the frequency domain compensating the uplink signal of the control link according to ephemeris information of satellites, position information of the second network device, and the frequency precompensation information comprises: determining second Doppler frequency offset information corresponding to the control link according to the ephemeris information of the satellite, the position information of the second network equipment and the frequency precompensation information; And carrying out frequency domain compensation on the uplink signal according to the second Doppler frequency offset information in the process of randomly accessing the first network equipment into the second network equipment and/or after the first network equipment is successfully accessed into the second network equipment.
9. A method of communication performed by a second network device on the ground, the method comprising: acquiring ephemeris information of a satellite; And carrying out frequency domain compensation on signals on a control link between the second network equipment and the first network equipment on the satellite according to the ephemeris information of the satellite and the position information of the second network equipment.
10. The method of claim 9, wherein the ephemeris information for the satellite is obtained from at least one of: the capability report message sent by the first network equipment; OAM information sent by operation maintenance management equipment.
11. The method according to claim 9 or 10, wherein the frequency domain compensating of signals on a control link between the second network device and a first network device on a satellite according to ephemeris information of the satellite and position information of the second network device comprises: Determining first Doppler frequency offset information corresponding to the control link according to ephemeris information of the satellite and position information of the second network equipment; And performing frequency domain compensation on uplink signals and/or downlink signals of the control link according to the first Doppler frequency offset information in the process that the first network equipment is randomly accessed to the second network equipment and/or after the first network equipment is successfully accessed to the second network equipment, wherein the uplink signals are signals sent to the second network equipment by the first network equipment, and the downlink signals are signals sent to the first network equipment by the second network equipment.
12. A method of communication performed by a second network device on the ground, the method comprising: Acquiring ephemeris information of a satellite and frequency precompensation information of a first network device on the satellite for an uplink signal of a control link, wherein one end of the control link is the first network device, the other end of the control link is the second network device, and the uplink signal is a signal sent by the first network device to the second network device; And carrying out frequency domain compensation on the downlink signal on the control link according to the ephemeris information of the satellite, the position information of the second network equipment and the frequency precompensation information.
13. The method according to claim 12, wherein the frequency precompensation information and/or ephemeris information of the satellite is obtained from at least one of the following messages: the capability report message sent by the first network equipment; OAM information sent by operation maintenance management equipment.
14. The method according to claim 12 or 13, wherein said frequency domain compensating the downstream signal on the control link based on ephemeris information of the satellite, location information of the second network device, and the frequency precompensation information comprises: Determining third Doppler frequency offset information corresponding to the control link according to the ephemeris information of the satellite, the position information of the second network equipment and the frequency precompensation information; And carrying out frequency domain compensation on the downlink signal according to the third Doppler frequency offset information in the process of randomly accessing the first network equipment into the second network equipment and/or after the first network equipment is successfully accessed into the second network equipment.
15. A first network device, comprising: The processing module is used for acquiring the position information of the second network equipment on the ground, and carrying out frequency domain compensation on signals on a control link between the first network equipment and the second network equipment according to the ephemeris information of the satellite where the first network equipment is located and the position information of the second network equipment.
16. A first network device, comprising: The processing module is used for acquiring position information of a second network device on the ground and frequency pre-compensation information of the second network device on a downlink signal of a control link, wherein one end of the control link is the first network device on a satellite, the other end of the control link is the second network device, the downlink signal is a signal sent to the first network device by the second network device, the position information of the second network device is based on ephemeris information of the satellite, and the frequency pre-compensation information carries out frequency domain compensation on an uplink signal of the control link, and the uplink signal is a signal sent to the second network device by the first network device.
17. A second network device, comprising: and the processing module is used for acquiring the ephemeris information of the satellite, and carrying out frequency domain compensation on signals on a control link between the second network equipment and the first network equipment on the satellite according to the ephemeris information of the satellite and the position information of the second network equipment on the ground.
18. A second network device, comprising: the processing module is used for acquiring ephemeris information of a satellite and frequency pre-compensation information of uplink signals of a control link by first network equipment on the satellite, wherein one end of the control link is the first network equipment, the other end of the control link is the second network equipment on the ground, the uplink signals are signals sent to the second network equipment by the first network equipment, and frequency domain compensation is carried out on the downlink signals on the control link by the second network equipment according to the ephemeris information of the satellite and the frequency pre-compensation information.
19. A communication device, comprising: one or more processors; A memory coupled to the processor, the memory having stored thereon executable instructions that, when executed by the processor, cause the communication method of any of claims 1-14 to be performed.
20. A storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method of any one of claims 1-14.

Description

Communication method, device, medium, and computer program product Technical Field The present disclosure relates to the field of communications technologies, and in particular, to a communication method, device, medium, and computer program product. Background In order to improve the coverage of the communication system, a relay device can be added in the communication system, and relay transmission is performed through the relay device, so that the coverage of the communication system can be enlarged. By way of example, a communication system supporting relay transmission may include a network device, a relay device, and a terminal device. The relay device is, for example, a network control relay (Network Controlled Repeater, NCR). The link between the network device and the NCR may include a backhaul link (BackhaulLink), and the link between the NCR and the terminal device may include an access link (ACCESSLINK) over which communication between the network device and the terminal device may be achieved. In addition, the link between the network device and the NCR may also include a control link (control link), and since the control link can be used to control the beam direction on the access link, it is very important to secure the communication quality on the control link. Disclosure of Invention The embodiment of the disclosure provides a communication method, a device, a medium and a computer program product. According to a first aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a first network device on a satellite, the method including obtaining location information of a second network device on the ground, and performing frequency domain compensation on signals on a control link between the first network device and the second network device according to ephemeris information of the satellite and the location information of the second network device. According to a second aspect of the disclosed embodiments, a communication method is provided, which is performed by a first network device on a satellite, and the method includes obtaining location information of a second network device on the ground and frequency pre-compensation information of the second network device on a downlink signal of a control link, where one end of the control link is the first network device, the other end of the control link is the second network device, the downlink signal is a signal sent by the second network device to the first network device, and performing frequency domain compensation on an uplink signal of the control link according to ephemeris information of the satellite, location information of the second network device, and the frequency pre-compensation information, where the uplink signal is a signal sent by the first network device to the second network device. According to a third aspect of the disclosed embodiments, a communication method is provided, which is performed by a second network device on the ground, the method comprising obtaining ephemeris information of a satellite, and performing frequency domain compensation on signals on a control link between the second network device and a first network device on the satellite according to the ephemeris information of the satellite and the position information of the second network device. According to a fourth aspect of the disclosed embodiments, a communication method is provided, which is performed by a second network device on the ground, and the method includes obtaining ephemeris information of a satellite, and frequency pre-compensation information of a first network device on the satellite for an uplink signal of a control link, where one end of the control link is the first network device, the other end of the control link is the second network device, the uplink signal is a signal sent by the first network device to the second network device, and performing frequency domain compensation on a downlink signal on the control link according to the ephemeris information of the satellite, the position information of the second network device, and the frequency pre-compensation information. According to a fifth aspect of the embodiments of the present disclosure, a first network device is provided, which includes a processing module configured to obtain location information of a second network device on the ground, and perform frequency domain compensation on signals on a control link between the first network device and the second network device according to ephemeris information of a satellite where the first network is located and the location information of the second network device. According to a sixth aspect of the embodiments of the present disclosure, a first network device is provided, which includes a processing module configured to obtain location information of a second network device on the ground and frequency pre-compensation information of the second network device for a dow