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Transmitter, transmission method, receiver, reception method, program, and integrated circuit

A technology of a transmitting device and a receiving device, applied in the fields of transmitting device, transmitting and receiving device, receiving, program and integrated circuit, can solve the problem of increasing the calculation amount of the receiving device, increasing the dynamic range of the receiving device, increasing the number of signal processing bits, etc. question

Active Publication Date: 2012-10-03
TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, it is necessary to significantly increase the dynamic range of the receiving device, that is, significantly increase the number of bits for signal processing, resulting in an increase in the amount of computation and cost of the receiving device, which becomes a problem

Method used

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  • Transmitter, transmission method, receiver, reception method, program, and integrated circuit
  • Transmitter, transmission method, receiver, reception method, program, and integrated circuit
  • Transmitter, transmission method, receiver, reception method, program, and integrated circuit

Examples

Experimental program
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Effect test

Embodiment approach 1

[0146] figure 1 It is a diagram showing the configuration of the transmission device 100 in Embodiment 1 of the present invention. The same reference numerals are used for the same constituent elements as those of the conventional transmission device, and description thereof will be omitted.

[0147] figure 1 The sending device 100 with Figure 32 Compared with the conventional transmission device 1000 shown, the energy dispersal unit 121 is added to the L1 signaling information encoding unit 111 .

[0148] exist figure 1 In the transmitting device 100, the energy dispersal unit 121 sequentially performs energy dispersal on the L1-pre information and the L1-post information generated by the L1 signaling information generation unit 1021. The L1-pre error correction coding unit 1031 performs error correction coding of the energy-diffused L1-pre information by BCH coding and LDPC coding. The L1-post error correction coding unit 1032 performs error correction coding of the...

Embodiment approach 2

[0163] Figure 4 It is a figure showing the structure of the transmission apparatus 200 in Embodiment 2 of this invention. The same reference numerals are used for the same constituent elements as those of the conventional transmission device and the transmission device of Embodiment 1, and description thereof will be omitted.

[0164] Figure 4 The sending device 200 and Figure 32 Compared with the conventional transmission device 1000 shown, the energy dispersal unit 121 is added to the L1 signaling information encoding unit 211 . However, in Embodiment 1 and Embodiment 2, the additional position of the energy diffusion part 121 differs.

[0165] exist Figure 4 In the transmission device 200 of , the energy dispersal unit 121 compares the error-corrected encoded L1-pre information output from the L1-pre error-corrected encoding unit 1031 and the error-corrected encoded information output from the L1-post error-corrected encoded unit 1032 L1-post information, energy di...

Embodiment approach 3

[0178] Figure 6 It is a figure showing the structure of the transmission apparatus 300 in Embodiment 3 of this invention. The same reference numerals are used for the same constituent elements as those of the conventional transmission device, and description thereof will be omitted.

[0179] Figure 6 The sending device 300 and Figure 32 Compared with the conventional transmission device 1000 shown, the L1 signaling information generation unit 321 in the L1 signaling information encoding unit 311 is replaced.

[0180] exist Figure 6 In the transmitting device 300 of , the L1 signaling information generator 321 generates L1 signaling information according to the transmission parameters, that is, converts the transmission parameters into L1 signaling information (L1-pre information and L1-post information) and outputs it. In this case, the L1 signaling information generation unit 321 inverts the bit pattern of the L1-post information part (excluding the PLP_ID) related to...

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PUM

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Abstract

A transmitter (100) comprises an L1 signaling data encoder (111). In the L1 signaling data encoder (111), an L1 signaling data generator (1021) converts a transmission parameter into L1 pre-data and L1-post data for output, an energy dispersal unit (121) performs energy dispersal on the L1 pre-data and L1 post-data in order, and an L1 error correction encoder (1022) performs error correction coding on the energy dispersed L1 pre-data by BCH and LDPC coding. This makes it possible to randomize a large bias in mapping data of the L1 pre-data and the L1 post-data and thereby solve a problem wherein power concentrates onto a specific sample in a P2 symbol.

Description

technical field [0001] The present invention relates to a technique for reducing PAPR (Peak to Average Power Ratio: Peak to Average Power Ratio) generated from L1 (Layer-1: Layer 1) signaling information of transmission parameters transmitting a main signal. Background technique [0002] Through the DVB-T (Digital Video Broadcasting-Terrestrial) method, which is the transmission standard of terrestrial digital TV broadcasting in Europe, the digitalization of TV broadcasting has been gradually promoted in Europe and countries outside of Europe. On the other hand, in order to improve frequency utilization efficiency, standardization of the DVB-T2 system, which is the second generation of terrestrial digital television broadcasting, has been started since 2006. The DVB-T2 method is the same as the DVB-T method, adopting the OFDM (Orthogonal Frequency Division Multiplexing: Orthogonal Frequency Division Multiplexing) method. [0003] Figure 31 It is a diagram showing the trans...

Claims

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Application Information

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IPC IPC(8): H04J11/00
CPCH04L27/2613H04L27/2647H04L1/0071H04L27/2626H04L25/03866H04L27/2615H04L1/0057H04L1/0041H04L1/0045H04L1/0051
Inventor 大内干博井口贺敬
Owner TIANMA MICRO ELECTRONICS CO LTD
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