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Receiving device, receiving method and receiving system

A technology of receiving device and preamble, which is applied in transmission system, baseband system, multi-frequency code system, etc., can solve the problems that cannot be implemented, cannot implement filter center position control, etc.

Active Publication Date: 2016-06-01
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0142] As can be seen from the above, in the receiving apparatus, for the interpolation filter 39 (refer to Figure 4 ) control of the position of the filter center (hereinafter, also referred to as "filter center position control") cannot be implemented until L1 is decoded to identify (acquire) the pilot pattern of the data symbol
[0143] Therefore, the receiving device cannot implement filter center position control until L1 is decoded after starting OFDM signal reception

Method used

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  • Receiving device, receiving method and receiving system
  • Receiving device, receiving method and receiving system
  • Receiving device, receiving method and receiving system

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Experimental program
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Embodiment Construction

[0236] Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0237] Embodiment of the receiving device of the present disclosure

[0238] Figure 11 is a block diagram showing the configuration of an embodiment of the reception device according to the present disclosure.

[0239] Note that in the figure, with image 3 Parts corresponding to the case of the shown existing receiving apparatus are respectively denoted by the same reference numerals, and, hereinafter, description thereof is appropriately omitted for the sake of simplification.

[0240] Figure 11 The receiving device shown with the image 3 The case of the shown conventional receiving apparatus is the same in that it includes constituent elements from the antenna 11 to the FFT section 18 , the transmission path distortion correction section 20 and the error correction section 21 .

[0241] but, Figure 11 The receiving device shown with the image...

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Abstract

The present invention relates to a receiving device, a receiving method and a receiving system. A receiving apparatus comprising: obtaining pre-interpolation transmission path characteristic data as an estimated value of a transmission path characteristic of a transmission path characteristic of an OFDM signal for a transmission symbol of a pilot signal by using a pilot signal included in an OFDM signal and by filtering the pre-interpolation transmission path characteristic data using an interpolation filter to thereby obtain the transmission path characteristic data as a transmission path characteristic estimation portion of an estimated value of the transmission path characteristic of the transmission symbol of the OFDM signal; OFDM is performed by using the transmission path characteristic data a distortion correction section for distortion correction of the signal; and a filter control section for controlling the passband of the interpolation filter.

Description

technical field [0001] The present disclosure relates to a receiving device, a receiving method, and a receiving system. More particularly, the present disclosure relates to a reception device, a reception method, and a reception system each capable of preventing deterioration in estimation accuracy of a transmission path characteristic, which is a characteristic of a transmission path of an OFDM signal. Background technique [0002] Terrestrial digital broadcasting and the like employ an Orthogonal Frequency Division Multiplexing (OFDM) system as a modulation system for modulating data (signals). [0003] In OFDM systems, digital modulation such as Phase Shift Keying (PSK) or Quadrature Amplitude Modulation (QAM) is implemented. In this digital modulation, a large number of orthogonal subcarriers are provided within a transmission band, and predetermined data are assigned to the amplitude and phase of the subcarriers, respectively. [0004] In the OFDM system, since the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04L25/02
CPCH04L5/0007H04L5/0048H04L25/0226H04L25/0232H04L27/2647
Inventor 横川峰志境仁志T·马修
Owner SONY CORP