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Access method and device for satellite communication network

A satellite communication and access method technology, applied in the field of communication, can solve problems such as uncontrollable, unguaranteed user service quality, and unbalanced utilization of bandwidth resources

Active Publication Date: 2020-06-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a method and device for accessing a satellite communication network, so as to at least solve the problems of low frequency spectrum utilization, unbalanced and uncontrollable utilization of bandwidth resources, and unguaranteed user service quality in the related art.

Method used

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  • Access method and device for satellite communication network
  • Access method and device for satellite communication network
  • Access method and device for satellite communication network

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Experimental program
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specific Embodiment 1

[0102] Figure 4 It is the basic processing flowchart of intelligent access in this specific embodiment, such as Figure 4 As shown, the network side of the satellite communication system periodically calculates the real-time load information CellLoadLevel of the carrier, and sends it through the broadcast overhead message. The access terminal side configures the satellite search list according to the available satellite information of the system, and traverses the satellite search list to try to lock the satellite, and receives the corresponding locked satellite. The carrier real-time load information CellLoadLevel, and the measured forward signal strength information (signal-to-noise ratio) FrowordSINRLevel, and then according to the traversed received carrier real-time load information and the measured forward signal strength information, generate a priority service carrier list, and the access terminal according to The priority order of the service carrier list initiates t...

specific Embodiment 2

[0111] Figure 5 It is a flow chart of quick access processing of intelligent access in this specific embodiment, such as Figure 5 As shown, the network side of the satellite communication system periodically calculates the real-time load information CellLoadLevel of the carrier, and sends it through the broadcast overhead message. The access terminal side configures the satellite search list according to the available satellite information of the system, and traverses the satellite search list to try to lock the satellite, and receives the corresponding locked satellite. Carrier real-time load information CellLoadLevel, and measured forward signal strength information (signal-to-noise ratio) FrowordSINRLevel, when FrowordSINRLevel level is non-poor signal quality (corresponding to the judgment of the above strength threshold), and CellLoadLevel is non-high load, the access terminal directly in Initiate service access on the carrier until the access to the network is successf...

specific Embodiment 3

[0119] Figure 6 It is a processing flow chart of intelligent access based on carrier load in this specific embodiment, such as Figure 6 As shown, the network side of the satellite communication system periodically calculates the real-time load information CellLoadLevel value of the carrier (the CellLoadLevel value is represented by 1 bit, when it is 0, it means that the carrier is not in a high-load state (corresponding to the judgment of the above-mentioned medium load threshold), and when it is 1, it means that the carrier is in a high-load state ) and sent through the broadcast overhead message, the access terminal side configures the satellite search list according to the satellite information available in the system, and traverses the satellite search list to try to lock the satellite, and receives the corresponding locked satellite carrier real-time load information CellLoadLevel, when the CellLoadLevel value is 0, access The terminal chooses to access the currently lo...

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Abstract

The embodiments of the present disclosure provide a method and device for accessing a satellite communications network, said method comprising: determining an access satellite used for accessing a satellite communications network; according to forward signal strength information and / or carrier real-time load information of the access satellite, determining an access carrier used for accessing a satellite communications network, and using the determined access carrier to access the satellite communications network by means of the access satellite. The embodiments of the present disclosure solve the problems in the related art of a satellite communications system having a low frequency-spectrum utilization ratio, broadband resource utilization being uneven and uncontrollable, and user service quality not being guaranteed; thus the broadband utilization of the entire system as well as user service quality is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for accessing a satellite communication network. Background technique [0002] In the second-generation satellite interactive system (Digital Video Broadcasting-Return Channel BySatellite Second Generation, referred to as DVB-RCS2) standard protocol, the satellite communication system uses time division multiplexing (Time Division Multiplexed, referred to as TDM) transmission in the forward direction, and the forward pass The access network periodically sends a Superframe Composition Table (SCT for short), a Broadcast Configuration Table (BCT for short), and a Network Clock Reference (NCR for short) broadcast overhead message. The access terminal first needs to lock the satellite, then receive the SCT, BCT, and NCR overhead messages of the corresponding serving satellite carrier, and then initiate a network access request through the reverse link for service ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04B7/185
CPCH04B7/18578H04W48/16G01S19/28H04B7/185
Inventor 段敏
Owner ZTE CORP