Transmission media access control method and system

A technology for transmission media and access control, which is applied in the field of satellite communications and can solve problems such as low system throughput

Active Publication Date: 2015-08-19
南京京迪通信设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a transmission medium access control method and system for the technical problem of low throughput of the system in the prior art

Method used

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  • Transmission media access control method and system
  • Transmission media access control method and system
  • Transmission media access control method and system

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Embodiment Construction

[0022] The specific implementation manners of the transmission medium access control method and system of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] refer to figure 1 , figure 1 Shown is a flow chart of a transmission medium access control method in an embodiment, including the following steps:

[0024] S10, after successfully registering with the master station and entering the active state, when there is a communication service to be sent, determine that the service type of the communication service to be sent is a packet switching service or a circuit switching service;

[0025] S20, if the service type is a packet switching service, then judge whether the data frames of the communication service in the sending queue are not less than the preset number, and if so, send the resource request through the PN code-based resource request / allocation access protocol message to the master station, and access the ...

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Abstract

The invention provides a transmission media access control method and system suitable for a VSAT star network based on SCPC / MCPC. The transmission media access control method comprises: determining a communication service to be transmitted to be a packet switching service or a circuit switching service when the communication service is required to be transmitted after an end station successively registers in a main station and enters an active state; if the communication service is the packet switching service, determining whether the number of data frames of the communication service in a transmit queue is less than a preset number, and if not, transmitting a resource request message to the main station through a resource request / allocation access protocol based on PN codes and accessing the transmission media resources allocated by the main station to a resource allocation message; and if the communication service is the circuit switching service, transmitting the resource request message to the main station through the resource request / allocation access protocol based on PN codes and accessing the transmission media resources allocated by the main station to the resource allocation message. The transmission media access control method and system may reduce a probability of collision of resource request messages in a process that the end station requests the media resource to access the transmission media and increase the throughput of the transmission media.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a transmission medium access control method and system suitable for a VSAT star network based on SCPC / MCPC. Background technique [0002] VSAT satellite network is a communication facility with wide coverage, convenient and fast erection, flexible networking and low cost. It is widely used in personal communication, remote office and business, news collection, emergency communication and other fields, providing users with cost-effective communication Serve. The VSAT star network consists of a master station and several end stations. The master station is linked with the end stations through the satellite link provided by the transparent transponder on the satellite. [0003] The VSAT satellite network can be used for both circuit switching services and packet switching services. When sending circuit-switched services, the end station generally adopts an on-deman...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04L29/06
Inventor 窦怀宇
Owner 南京京迪通信设备有限公司
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