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Central switching and channel distribution method for integrated service of TDMA star network

An integrated service and channel allocation technology, applied in wireless communication, electrical components, etc., can solve the problems of reducing application flexibility, increasing the interaction between business systems and satellite communication systems, and achieving simple, reliable, and easy-to-use methods for two-way channel resource application and allocation. Achieved effect

Active Publication Date: 2014-02-12
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

If this forwarding process is carried out by the business system center, on the one hand, it increases the complexity of the business system, on the other hand, it increases the interaction between the business system and the Satcom system, reducing the application flexibility

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  • Central switching and channel distribution method for integrated service of TDMA star network
  • Central switching and channel distribution method for integrated service of TDMA star network

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Embodiment Construction

[0026] In the basic communication principle of TDMA, satellite channel resources are divided into TDMA frame and time slot two-level structure according to time. Each TDMA frame is a cycle of resource allocation, and a time slot is a basic application allocation unit of channel resources. There are two kinds of channel resources in the TDMA star network. According to the relationship with the central station, one is the carrier group resource sent from the small station to the central station, which is called the return channel; the other is the carrier sent from the central station to the small station. resources, called the forward channel. Sending data back to the TDMA system is to submit a service application through the small station. After the central station allocates channel resources according to the application, it issues a time slot allocation plan (TDMA frame plan) in the reference, and finally the small station executes the frame plan. The sending and receiving o...

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Abstract

The invention discloses a central switching and channel distribution method for an integrated service of a TDMA (Time Division Multiple Access) star network, relates to a method for implementing transmission of the integrated service under the condition of star networking of a TDMA satellite communication system, and aims to effectively solve the problem of concurrence and intercommunication between a central station and sub-stations as well as among sub-stations in the star network. According to the method, by using the central station to transmit and realize bidirectional service distribution, the intercommunication among services in the whole star network is realized, and aiming at real-time and non-real time services, flexible channel resource distribute is realized to further realize the distinct transmission service. The realization of the central switching and channel distribution method is mainly based on three major processes including service flow dividing and marking, bidirectional time slot applying and distributing, and service flow central forwarding. The method has the characteristics of simpleness in realization, flexibility in application, and certain service assurance capability, and is in particular applicable for the integrated service transmission process of the star networking of the TDMA satellite communication system.

Description

technical field [0001] The invention relates to an integrated service transmission and resource allocation method based on a star network in the field of TDMA (time division multiple access) satellite communication, and further realizes a certain degree of transmission service quality assurance function through service flow classification. It is especially suitable for the transmission process of integrated services in star network applications based on TDM / TDMA system. Background technique [0002] TDMA star networking technology was born out of MF-TDMA (Multi-Frequency Time Division Multiple Access) system satellite communication technology. It is a star networking communication system developed to meet the application requirements of communication between the center and a large number of low-speed stations. It specializes the sending carrier of the central station of the MF-TDMA system into a TDM carrier, which is exclusively used by the central station and received by al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/10
Inventor 陈杰吴果郝学坤许楠周斌张方明杨旭光钟浩
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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