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Transmission parameter signaling decoding system for digital terrestrial multimedia broadcast

A technology for transmission parameter signaling and multimedia broadcasting, applied in the field of transmission parameter signaling decoding system, can solve the problems of undisclosed transmission parameter signaling decoding performance, etc., and achieve the best decoding performance and the effect of flexible solutions

Inactive Publication Date: 2009-02-04
SUNPLUS TECH CO LTD
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Problems solved by technology

However, it does not disclose how to use channel state information (CSI) and input signals to obtain the best transmission parameter signaling (TPS) decoding performance, nor how to properly and effectively design the equalizer to obtain the best Excellent transmission parameter signaling (TPS) decoding performance
It can be seen that the known transmission parameter signaling (TPS) decoding system used in OFDM still has many shortcomings and needs to be improved.

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  • Transmission parameter signaling decoding system for digital terrestrial multimedia broadcast
  • Transmission parameter signaling decoding system for digital terrestrial multimedia broadcast
  • Transmission parameter signaling decoding system for digital terrestrial multimedia broadcast

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Embodiment Construction

[0034] See figure 2 , which is a block diagram of a decoding system for transmitting parameter signaling in a multi-carrier mode for a receiving end of a DTMB digital television system according to the present invention. The system 200 includes an input signal estimation device 210 , a Fast Hadamard Transform device 220 , a masking device 230 , a character index determining device 240 , and a look-up table device 250 .

[0035] The input signal estimation device 210 is used to receive N TPS frequency domain input signal y i，k m and N TPS channel estimation signal to generate N TPS estimated input signal In DTMB system, N TPS = 32, the N TPS A frequency domain input signal is a signal corresponding to a signal frame (Frame) i of wireless transmission, i is the sequence number (Index) of the signal frame, k is the sequence number (Subcarrier Index) of a subcarrier, and m is the used Wall The serial number (Index) of even character code. In the DTMB system, a total o...

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Abstract

The invention provides a transmission parameter signaling decoding system applied to digital terrestrial multimedia broadcasting, comprising an input signal estimation apparatus, a fast Hadamard transform apparatus, a shield apparatus and a character code index decision device. The system can be applied to a multi-carrier mode or a Single-carrier mode, can acquire input signals respectively from a frequency domain or a time domain, and provide the optimal transmission parameter signaling (TPS) decoding system architecture according to different conditions, for instance, whether the known Channel State Information is balanced with a channel or not.

Description

technical field [0001] The present invention relates to the technical field of wireless transmission, in particular to a transmission parameter signaling (Transmission Parameter Signaling, TPS) decoding system used in Orthogonal Frequency Division Multiplexing (OFDM). Background technique [0002] Compared with traditional analog TV broadcasting, digital TV broadcasting can not only provide programs with higher picture quality and sound quality and better spectrum utilization efficiency, but more importantly, it can provide various data services. [0003] With the advent of the digital age, television broadcasting has gradually transformed from a traditional analog system to a digital system, just as mobile communications have evolved from the first generation of analog systems to the second generation that is mainly voice-based and the third generation that can provide multimedia Serving digital system. The digital video broadcasting system can overcome the phenomenon of p...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L25/03H04H20/72
Inventor 曾俊杰濮惟正洪清标
Owner SUNPLUS TECH CO LTD
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