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Routing policy information generating method and device and routing method and device

A policy information and routing technology, applied in radio transmission systems, electrical components, transmission systems, etc., can solve problems such as increasing satellite hardware resources, hidden safety hazards, and increased data transmission delays

Inactive Publication Date: 2017-10-03
BEIJING XINWEI TELECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the existing typical satellite networking routing strategies can realize satellite networking and routing to a certain extent, they have the following disadvantages: satellites use IP routing technology, and the data transmitted on the satellite will exist with the ground. The security risks are the same as IP networks; the use of IP-based routing protocols requires corresponding hardware equipment support, which not only increases satellite hardware resources, but also increases the complexity of on-board software calculations; the transmission of data between different layers of satellites brings data The increase in transmission delay does not meet the requirements for services with increasing real-time requirements; although the virtual node-based method solves the networking problem to a certain extent, the amount of information exchanged between satellites is large, and it is necessary to consider The actual throughput that the inter-link can support

Method used

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  • Routing policy information generating method and device and routing method and device
  • Routing policy information generating method and device and routing method and device

Examples

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no. 1 example

[0048] figure 1 It is a flowchart of a method for generating routing policy information provided by the first embodiment of the present invention, and the embodiment of the present invention is applicable to the process of generating routing policy information based on a low-orbit satellite constellation system. The method in this embodiment may be executed by a device for generating routing policy information, which may be implemented in hardware and / or software, and may generally be integrated in a ground NCC (Network Control Centre, Network Control Center).

[0049] Such as figure 1 As shown, the method of this embodiment specifically includes the following steps:

[0050] 110. Select a low-orbit satellite constellation system that supports inter-satellite link transmission.

[0051] In this embodiment, a low-orbit satellite constellation system needs to be selected first, and a routing strategy is designed based on the selected low-orbit satellite constellation system to...

no. 2 example

[0087] exist Figure 5 A flow chart of a routing method according to the second embodiment of the present invention is shown in . The embodiment of the present invention is applicable to the routing process based on the low-orbit satellite constellation system, and needs to use the routing strategy information generated in the first embodiment of the present invention. The method of this embodiment can be executed by a routing device, which can be implemented by means of hardware and / or software, and the routing method of this embodiment can be realized through the cooperation of the NCC and the low-orbit satellite constellation system.

[0088] Such as Figure 5 As shown, the method of this embodiment specifically includes the following steps:

[0089] 510. Receive, through the NCC, a signaling packet sent by the source terminal, where the signaling packet includes a source area identifier determined by the location of the source terminal and an identity identifier of the d...

no. 3 example

[0101] Figure 6 It is a flowchart of a routing method according to the third embodiment of the present invention. This embodiment is optimized on the basis of the foregoing embodiments, and the method of this embodiment includes the following steps:

[0102] 610. Receive, through the NCC, a signaling packet sent by the source terminal, where the signaling packet includes a source area identifier determined by the location of the source terminal and an identity identifier of the destination terminal.

[0103] 620. Use the NCC to determine the location of the destination terminal according to the identity of the destination terminal, and determine the destination area identifier of the destination terminal according to the location of the destination terminal.

[0104] 630. Use the NCC to query the static area location relationship table, and determine at least two next-hop area IDs from the area ID of the source terminal to the area ID of the destination terminal.

[0105] I...

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Abstract

The embodiment of the invention discloses a routing policy information generating method and device and a routing method and device. The routing policy information generating method comprises the steps that a low-orbit satellite constellation system supporting inter-satellite link transmission is selected; the earth's surface is divided into physical areas of set number and set size; a logical area is divided for the low-orbit satellite constellation system; a static area position relation table is established and stored in NCC; and according to constellation ephemeris data, a dynamic satellite area mapping table is established and stored in the NCC and each satellite of the low-orbit satellite constellation system. According to the method provided by the embodiment, the existing satellite networking routing policy is optimized, so that the existing low-orbit satellite constellation system can realize fast and real-time data transmission of most of services on the ground without equipping IP equipment and crossing a satellite layer.

Description

technical field [0001] Embodiments of the present invention relate to mobile communication technologies, and in particular to a method and device for generating routing policy information, and a routing method and device. Background technique [0002] Generally speaking, the existing low-orbit satellite communication systems use inter-satellite links and on-satellite routing switching technologies to realize automatic networking of satellite nodes and multi-hop routing and forwarding of business data between satellites, thereby realizing global terminal connections. real-time or near-real-time communication between [0003] At present, the existing on-board routing technology solutions are mainly presented in the following forms: [0004] Combination of GEO (Geosynchronous Eearth Orbit, geostationary orbit satellite) and LEO (Low Earth Orbit, low-orbit satellite): 3 GEO satellites provide high-orbit coverage, multiple LEO satellites provide low-orbit global coverage, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
Inventor 齐征宋永亮辛朝磊
Owner BEIJING XINWEI TELECOM TECH
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