US 12,224,848 B2 · Data packet processing method and apparatus

Abstract

This application provides a data packet processing method and apparatus, applied to a satellite communications system. An earth surface, space, and network space are divided based on a satellite constellation and an ephemeris of a satellite, and an identifier is allocated to each ground area, each space area, and each network that are sub-divisions of the earth surface, space and network space, to establish a fixed mapping relationship between the EID, the SID, and the NID. In addition, each satellite maintains mapping relationship information recording the mapping relationship. Unless a satellite joins the constellation or one satellite leave service, the mapping relationship recorded in the mapping relationship information does not need to be updated. Based on the mapping relationship information, a satellite may route a data packet, thereby reducing a large amount of signaling interaction caused by establishing and maintaining a routing table in the conventional manner.

Claims19

Dependent claims

A data packet processing method, applied to a satellite communications system, wherein the method comprises:

receiving, by a first satellite, a data packet that carries an Internet Protocol (IP) address of a destination device, and the IP address comprises a network identifier (NID);
determining, by the first satellite based on the NID, mapping relationship information, and an ephemeris, an identifier of a destination satellite corresponding to the NID, wherein the mapping relationship information is used to record a mapping relationship between the NID, an earth surface identifier (EID), and a space identifier (SID);
and
sending, by the first satellite, the data packet to the destination satellite.

1 more element

A data packet processing apparatus, comprising:

at least one processor;
and
at least one non-transitory computer-readable memory storing a program for execution by the at least one processor, the program comprising instructions for
receiving a data packet, wherein the data packet carries an Internet Protocol (IP) address of a destination device, and the IP address comprises a network identifier (NID);
determining, based on the NID, mapping relationship information, and an ephemeris, an identifier of a destination satellite corresponding to the NID, wherein the mapping relationship information is used to record a mapping relationship between the NID, an earth surface identifier (EID), and a space identifier (SID);
and
outputting the data packet.

4 more elements

A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and when the computer program is run on a computer, the computer is enabled to:

receive a data packet carring an Internet Protocol (IP) address of a destination device, and the IP address comprises a network identifier (NID);
determine, based on the NID, mapping relationship information, and an ephemeris, an identifier of a destination satellite corresponding to the NID, wherein the mapping relationship information is used to record a mapping relationship between the NID, an earth surface identifier (EID), and a space identifier (SID);
and
output the data packet.

1 more element

Dependencies are inferred from the claim text.

Data packet processing method and apparatus

Life of this patent

Data packet processing method and apparatus

Life of this patent

Abstract

Claims19