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Diversity reception device and diversity reception method

A technology for receiving and receiving signals with diversity, applied in the directions of space transmit diversity, diversity/multi-antenna system, selective content distribution, etc., can solve the problem of inaccurate reception, etc., and achieve the effect of reducing power consumption and diversity reception.

Inactive Publication Date: 2010-10-20
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, sometimes diversity integration should be performed but diversity integration is not performed, resulting in incorrect reception

Method used

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  • Diversity reception device and diversity reception method
  • Diversity reception device and diversity reception method
  • Diversity reception device and diversity reception method

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Embodiment Construction

[0031] Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Each functional block in this specification can generally be realized by hardware. For example, each functional block may be formed on a semiconductor substrate as a part of an IC (Integrated Circuit). Here, IC includes LSI (large-scale integrated circuit), ASIC (Application-Specific Integrated Circuit), gate array, FPGA (Field Programmable Gate Array), etc. Alternatively, part or all of each functional block may be implemented by software. For example, the above-mentioned functional blocks can be realized by a program executed in a processor. In other words, each functional block described in this specification can be implemented by hardware, software, or any combination of hardware and software.

[0032] figure 1 It is a block diagram showing a configuration example of a diversity receiving apparatus according to an embodiment of the present invention. figure 1 The div...

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Abstract

It is possible to reduce the power consumption while appropriately performing a diversity reception. Provided is a diversity reception device including: a plurality of branches corresponding to respective antennas and each performing a reception process for a reception signal received by the corresponding antenna; a coefficient generator which generates a weighting coefficient for each of the branches; a diversity synthesizer which subjects the signal after the reception process performed by the branches, to a diversity process based on the weighting coefficient; and a judgment device for judging which of the branches is not required for the diversity process according to the weighting coefficient. At least some of the elements constituting the branch judged to be unnecessary for the diversity process stop operations.

Description

Technical field [0001] The invention disclosed in this application relates to a diversity receiving device and a diversity receiving method that use multiple antennas to receive radio signals. technical background [0002] For example, in Japan, television broadcasting for portable receivers such as mobile phones has been implemented. However, the reception environment of the portable receiver is very harsh due to reasons such as moving and receiving, and the small size of the usable antenna. In such a harsh receiving environment, in order to receive and clearly display broadcast programs, a diversity receiving technology that uses multiple antennas for reception is adopted. [0003] Patent Document 1 describes a technique of performing channel estimation for each transmission path of signals received by multiple antennas, and determining the weight of the branch corresponding to each antenna based on the obtained estimation result , For diversity reception. [0004] When performi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/08H04N5/44
CPCH04W52/02H04N21/41407H04W52/0238H04N5/44H04B7/0874H04B7/0857H04N21/4436H04W52/0245H04N21/4263Y02D30/70
Inventor 西川知希
Owner PANASONIC CORP