Transmission medium access control method and system
A technology of transmission media and access control, applied in the field of satellite communications, which can solve problems such as low system throughput
Active Publication Date: 2018-05-25
南京京迪通信设备有限公司
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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
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[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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The present invention provides a transmission medium access control method and system, which are suitable for VSAT star network based on SCPC / MCPC. The transmission medium access control method includes: after successfully registering with the master station and entering the active state, when there is communication When the service needs to be sent, it is judged that the service type of the communication service to be sent is a packet switching service or a circuit switching service; if the service type is a packet switching service, then it is judged whether the data frames of the communication service in the sending queue are not less than the preset number , if yes, then send a resource request message to the master station through the PN code-based resource request / allocation access protocol, and access the transmission media resource allocated by the master station in the resource allocation message; if the service type is a circuit-switched service, then pass The PN code-based resource request / allocation access protocol sends a resource request message to the master station, and accesses the transmission media resources allocated by the master station in the resource allocation message; it can reduce the process of the terminal station applying for media resource access to the transmission medium The probability of resource request message collisions improves the throughput of the transmission medium.
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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IPC IPC(8): H04B7/185H04L29/06
Inventor 窦怀宇
Owner 南京京迪通信设备有限公司