CN-121985395-A - Access method and program product

CN121985395ACN 121985395 ACN121985395 ACN 121985395ACN-121985395-A

Abstract

The embodiment of the application provides an access method and a program product. The method comprises the steps of obtaining the current position of the satellite terminal, determining service beams according to the current position, and sending paging messages to the satellite terminal through broadcast beams, wherein the paging messages comprise access information of the service beams, and the paging messages are used for triggering the terminal to perform random access on the service beams, so that satellite communication efficiency is improved.

Inventors

YUAN NAIHUA
CHEN YING
YUAN XUE
TAN KEN
FAN CHEN
MA XIAOFEI

Assignees

成都鼎桥通信技术有限公司

Dates

Publication Date: 20260505
Application Date: 20251113

Claims (10)

1. An access method, applied to a network device, comprising: acquiring the current position of a satellite terminal, wherein the satellite terminal is in an idle state; Determining a service beam according to the current position; and sending a paging message to the satellite terminal through a broadcast beam, wherein the paging message comprises access information of the service beam, and the paging message is used for triggering the terminal to perform random access on the service beam.
2. The method of claim 1, wherein determining a traffic beam based on the current location comprises: Acquiring satellite orbit parameters; determining a plurality of beams covering the current position according to the satellite orbit parameters; acquiring service application, beam service time period and beam frequency use information of the satellite terminal; and determining a service beam from the plurality of beams according to the service application, the beam service period and the beam frequency use information.
3. The method of claim 2, wherein determining a traffic beam among the plurality of beams based on the traffic application, the beam service period, and the beam frequency usage information comprises: Inputting the service application, the beam frequency use information in the beam service period and the plurality of beams into a service beam prediction model to obtain an output result of the service beam prediction model; And determining the service beam according to the output result of the service beam prediction model.
4. A method according to any of claims 1-3, characterized in that before the acquisition of the current position of the satellite terminal, the method further comprises: and sending a first message to the satellite terminal, wherein the first message is used for indicating that the position information is reported when the distance variation of the position of the satellite terminal in an idle state exceeds a preset threshold value.
5. An access method, applied to a satellite terminal, comprising: receiving a paging message sent by network equipment through a broadcast beam, wherein the paging message comprises a target terminal identifier; Judging whether access information of a service beam exists in the paging message or not when the satellite terminal is equipment corresponding to the target terminal identifier; if yes, carrying out random access through the service wave beam according to the access information.
6. The method of claim 5, wherein performing random access over the traffic beam based on the access information comprises: analyzing the access information to obtain access parameters; transmitting a physical random access channel signal to network equipment through the service beam according to the access parameter; Receiving a random access response sent by the network equipment through the service beam; Performing an interaction procedure of radio resource control connection establishment on the service beam; performing beam measurements on the traffic beam to obtain beam quality information; and carrying out beam matching according to the beam quality information.
7. The method of claim 6, wherein the access parameters include a priority field, the priority field being used to indicate priority identities corresponding to a plurality of service types, respectively, and transmitting physical random access channel signals to the network device via the service beam according to the access parameters, comprises: determining the current service type of the satellite terminal; Determining a current priority identifier corresponding to the current service type according to the priority field; and when the current priority identification is a preset identification, transmitting a physical random access channel signal to network equipment through the service beam.
8. The method according to any of claims 5-7, wherein prior to receiving a paging message sent by the network device over a broadcast beam, the method further comprises: receiving a first message sent by a network device, wherein the first message is used for indicating that the distance variation of the position of the satellite terminal in an idle state exceeds a preset threshold value and reporting position information; monitoring and processing the distance variation of the position of the satellite terminal; And when the distance variation of the position of the satellite terminal exceeds the preset threshold, generating a second message, wherein the second message comprises the current position of the satellite terminal.
9. The method according to any one of claims 5-7, further comprising: and in case of failure of the random access, performing the random access through a broadcast beam.
10. A computer program product comprising a computer program which, when executed by a processor, implements the method of any one of claims 1-4 or the method of any one of claims 5-9.

Description

Access method and program product Technical Field The present application relates to the field of communications technologies, and in particular, to an access method and a program product. Background In low orbit satellite communication systems, satellite terminals typically need to communicate through satellite base stations. Satellite communication systems typically employ multi-beam coverage techniques because of the low orbital satellite orbit heights and the rapid change in satellite coverage area over time. In a satellite communication scenario, satellite terminals may be in different connection states. When the satellite terminal is in an idle state, the network equipment cannot actively initiate data transmission, and can only inform the satellite terminal to initiate a service request through a paging mechanism. Because the scanning period of the broadcast beam is longer, the coverage area of the service beam is smaller and the service beam is dynamically scheduled, the satellite terminal can be switched to the service beam for data interaction only after receiving the paging message and completing the synchronization, random access and radio resource control connection establishment flow through the broadcast beam. In the satellite communication, the access time delay of the satellite terminal is increased, and the air interface resource of the broadcast beam is wasted, especially under the high-density user scene or low-delay service requirement, so that the satellite communication efficiency is lower. Disclosure of Invention The embodiment of the application provides an access method and a program product, which are used for solving the problem of lower satellite communication efficiency in the related technology. In a first aspect, an embodiment of the present application provides an access method, applied to a network device, including: Acquiring the current position of a satellite terminal, wherein the satellite terminal is in an idle state; determining a service beam according to the current position; and sending a paging message to the satellite terminal through the broadcast beam, wherein the paging message comprises access information of the service beam, and the paging message is used for triggering the terminal to perform random access on the service beam. In one possible implementation, determining the service beam according to the current location includes: Acquiring satellite orbit parameters; determining a plurality of beams covering the current position according to the satellite orbit parameters; acquiring service application, beam service time period and beam frequency use information of a satellite terminal; A traffic beam is determined among the plurality of beams based on the traffic application, the beam service period, and the beam frequency usage information. In one possible implementation, determining a traffic beam among a plurality of beams according to traffic application, beam service period, and beam frequency usage information, includes: inputting the service application, the beam service period beam frequency use information and the plurality of beams into a service beam prediction model to obtain an output result of the service beam prediction model; And determining the service beam according to the output result of the service beam prediction model. In one possible implementation, before acquiring the current position of the satellite terminal, the method further includes: And sending a first message to the satellite terminal, wherein the first message is used for indicating that the position information is reported when the distance variation of the position of the satellite terminal in an idle state exceeds a preset threshold value. In a second aspect, an embodiment of the present application provides an access apparatus, including: The acquisition module is used for acquiring the current position of the satellite terminal, and the satellite terminal is in an idle state; the determining module is used for determining a service beam according to the current position; And the sending module is used for sending paging information to the satellite terminal through the service beam, wherein the paging information comprises access information of the service beam, and the paging information is used for triggering the terminal to perform random access on the service beam. In one possible implementation, the determining module is specifically configured to: Acquiring satellite orbit parameters; determining a plurality of beams covering the current position according to the satellite orbit parameters; acquiring service application, beam service time period and beam frequency use information of a satellite terminal; A traffic beam is determined among the plurality of beams based on the traffic application, the beam service period, and the beam frequency usage information. In one possible implementation, the determining module is specifically configured to: inputting the se