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Diversity receiving device

A technology of diversity receiving and receiving unit, which is applied in the field of diversity receiving devices, can solve the problems such as the degradation of receiving characteristics of diversity receiving devices, and achieve the effect of saving power and preventing the deterioration of receiving characteristics

Inactive Publication Date: 2006-09-13
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, by adding the transient currents in each circuit, it becomes a very large transient current, which generates noise
It is considered that the reception characteristic of the diversity receiving apparatus is degraded by this noise
For example, the generated noise is combined with signals corresponding to other effective antennas, and the reception characteristics of the diversity receiving apparatus are degraded

Method used

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Examples

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Embodiment Construction

[0038] Embodiments of the present invention will be described below using the drawings.

[0039] [Structure and basic movements]

[0040] figure 1 It is a functional block diagram of the diversity receiving apparatus according to the embodiment of the present invention.

[0041] refer to figure 1 The diversity receiving apparatus has an antenna 1a, an antenna 1b, a receiving unit 100a, a receiving unit 100b, a selection and synthesis unit 101, a clock generation unit 5, an antenna selection unit 8, a control unit 9, a deinterleaving unit 10, a demapping unit 11 and a correcting Wrong part 12.

[0042] The receiving unit 100a includes a tuner 2a, an A / D (Analog / Digital) conversion unit 3a, and an OFDM (Orthogonal Frequency Division Multiplexing) demodulation unit 4a. The receiving unit 100b includes a tuner 2b, an A / D converting unit 3b, and an OFDM demodulating unit 4b. The selection and synthesis unit 101 includes the data selection and synthesis unit 6 and the correlati...

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Abstract

The diversity reception device includes several reception units to receive radio signals from several antennas and create data; an antenna selecting unit to select antennas based on specified conditions; a selecting and synthesizing unit to select and synthesize the data from the corresponding antennas; a control unit to control the reception units and the selecting and synthesizing unit. The present invention can switch between the diversity reception and the single reception for saving power and can avoid the degradation in reception characteristic caused by the switching.

Description

technical field [0001] The present invention relates to a diversity receiving device, in particular to a diversity receiving device for switching between diversity receiving and single receiving. Background technique [0002] In mobile communication systems, in order to reduce the deterioration of reception characteristics caused by attenuation, etc., it is proposed to receive radio signals by multiple antennas, generate reception data corresponding to multiple antennas, and perform diversity reception by selecting and combining these data. receiving device. Here, the reception characteristic refers to, for example, BER (Bit Error Rate), FER (Frame Error Rate), packet loss rate, etc. of received data generated from a radio signal by the diversity receiving apparatus. [0003] For example, Patent Document 1 discloses a diversity reception device as follows. That is, data output from circuits of two systems corresponding to two antennas are selected and combined in the diver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/08
CPCY02D30/70
Inventor 岩崎利哉上野展史
Owner SANYO ELECTRIC CO LTD
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