Framing and transmitting method for 3G-based CEO satellite communication system

A technology of a satellite communication system and a transmission method is applied in the field of framing transmission of a GEO satellite mobile communication system to achieve the effects of improving the transmission rate and system service quality performance, improving the transmission rate and improving the power efficiency.

Active Publication Date: 2010-12-15
SPACE STAR TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The technical solution problem of the present invention: Aiming at the deficiencies in the prior art, a kind of framing transmission method of the GEO satellite communication system based on 3G is proposed. And the complexity problem that brings, aiming at the transmission characteristics of the physical channel of GEO satellite mobile communication system, the framing method used in the uplink and downlink part of the physical channel has been redesigned, so that the method described in the present invention is more suitable for the following 3G-based GEO satellite communication system improves system transmission rate, terminal power efficiency and resource utilization

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  • Framing and transmitting method for 3G-based CEO satellite communication system
  • Framing and transmitting method for 3G-based CEO satellite communication system
  • Framing and transmitting method for 3G-based CEO satellite communication system

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Embodiment Construction

[0032] Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0033] The mobile communication system generally adopts the idea of ​​layered design, and divides each step in the work of the entire mobile communication system into layers. Therefore, when implementing the method of the present invention, it can be further divided into target channel selection, framing process and transmission process from the perspective of layering. Among them, the process of target channel selection is mainly completed in the sub-layer Media Access Control (MAC) layer in the data link layer of the mobile communication system, and the operations involved in the framing and sending process are performed in the mobile communication system. in the physical layer (PHY) layer. The MAC layer and the PHY layer described in the present invention are the macroscopic layers of the communication system, and do not involve th...

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Abstract

The invention discloses a framing and transmitting method for a 3G-based CEO satellite communication system. The method is characterized by comprising the following steps of: forming information of a UL-DPDCH by using a data field of a selected length, and forming information of a UL-DPCCH by using a pilot field of 3bit to 8bit, a transmission format combination indicating field of 2bit and a transmitting power control field of 1bit to 2bit; forming information of an information part of an uplink PRACH by using a data part consisting of the data field of the selected length and a feedback information field of 0bit to 2bit and a control part consisting of the pilot field of 8bit and the transmission format combination indicating field of 2bit; forming information of a DL-DPDCH by using a data field of a selected length, and forming information of a DL-DPCCH by using a transmitting power control field of 2bit to 16bit and a transmission format combination indicating field of 4bit; and forming information of an S-CCPCH in a DL-CPCH by using the transmission format combination indicating field of 4bit and the data field of the selected length.

Description

technical field [0001] The invention relates to a frame sending method of a GEO satellite communication system, in particular to a frame sending method based on the S-UMTS standard in 3G and applicable to a GEO satellite mobile communication system, and belongs to the field of satellite mobile communication. Background technique [0002] At present, my country's civilian GEO satellite communication mainly provides satellite communication services in the fields of public communication services, private communication services, and radio and television transmission services, but it is still blank in the field of satellite mobile communication systems. The long-term vision of my country's future satellite mobile communication system is to combine the satellite mobile communication system as an access means with various ground wireless access technologies, such as mobile communication systems represented by 2G or 3G, so as to form a space-ground integration integrated mobile commu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04B7/204
Inventor 邢玥邹光南徐峰
Owner SPACE STAR TECH CO LTD
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