Low orbit satellite communication method and system in sky-earth integration network

A technology of satellite communication and satellite information, applied in the field of low-orbit satellite communication, can solve the problems of consuming large wireless network resources and user terminal energy, not supporting localized paging strategy, waste of communication system resources, etc., to reduce delays and signaling load, reduce the transmission frequency, and reduce the effect of energy consumption
CN106549703AActive Publication Date: 2017-03-29BEIJING UNIV OF POSTS & TELECOMM
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING UNIV OF POSTS & TELECOMM
Publication Date
2017-03-29

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Abstract

The embodiment of the invention provides a low orbit satellite communication method and system in a sky-earth integration network. The method comprises the steps that: a first satellite acquires pre-established identifiers of all ground partitions; the first satellite moves to a second ground partition from a first ground partition, and according to the identifiers of all the ground partitions, an address of the first satellite is changed into a second address in the second ground partition, which has a second identifier, from a first address in the first ground partition, which has a first identifier; the first satellite broadcasts a satellite information packet to the second ground partition, so that a first user terminal receiving the satellite information packet keeps a local information table of the first user terminal according to the satellite information packet; and the first satellite acquires a local communication packet sent by the first user terminal according to the local information table of the first user terminal, and establishes a communication connection between the first user terminal and a target terminal according to the local communication packet. According to the method provided by the invention, resource waste of a communication system in the sky-earth integration network is reduced, and communication resources are saved.
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Description

technical field

[0001] The invention relates to the technical field of communication, in particular to a method and system for low-orbit satellite communication in a space-ground integrated network. Background technique

[0002] The concept of MM (Mobile Management, mobility management) was first proposed and used in cellular communication networks. In the wireless mobile network, the network needs to track the mobile user terminals and provide services for them, so that the mobile user terminals can communicate normally, and ensure that the user terminals maintain communication with other user terminals or fixed nodes during the movement process. communication between. In order to ensure that user terminals can stably obtain services from the network at any location within the entire network coverage, the role of MM becomes particularly prominent.

[0003] The so-called MM is a time-varying mapping provided between the mobile node's identity (node ​​name) and its address ...

Claims

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