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Receiving method and device

A receiving method and technology of a receiving device are applied in the directions of space transmit diversity, transmission system, antenna, etc., to achieve the effects of avoiding switch switching, reducing bit errors, and reducing the influence of human body shading

Inactive Publication Date: 2010-09-29
OKI ELECTRIC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

) signal demodulation, etc., a bit error occurs

Method used

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  • Receiving method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (structure)

[0029] (1) The configuration of the portable electronic device 1 and (2) the configuration of the receiving device 10 in Embodiment 1 of the present invention will be described below.

[0030] (1) Structure of the portable electronic device 1

[0031] figure 2 (a) and (b) are schematic configuration diagrams showing a portable electronic device 1 having the receiving device 10 in Embodiment 1 of the present invention, figure 2 (a) is a diagram showing the appearance, figure 2 (b) is a diagram showing an internal circuit.

[0032] The portable electronic device 1 is a mobile phone, and has a neck strap that hangs the main body of the portable electronic device 1 around the neck and is detachable from the main body. In the main body, a first antenna 11 is built in. In the neck cord, a second antenna 12 is embedded. In addition, the main body has an antenna terminal 13, and by connecting the second antenna 12 to the antenna terminal 13, the reception...

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PUM

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Abstract

The invention provides a receiving method and a receiving device. In a selective diversity, the antenna switch is eliminated when the grouped data is received and the optimal antenna is chosen to decrease the grouping error. The device is provided with a RSSI value detector (41) for detecting a RSSI value of a received signal, a differential value calculator (42) for calculating a differential value of the detected RSSI value and a switch (50) for outputting and choosing the switch signal of a first and second antennas (11), (12). The antenna can be chosen through the RSSI value R1 (t1) and the RSSI value R2 (t1) of a received wave and the differential values delta R1 and delta R1 showing the influence caused by delay, so the antennas having heavy delay caused by human shielding can be detected and the antennas which have small influence on the human shielding can be chosen so as to decrease the grouping error.

Description

technical field [0001] The present invention relates to a receiving method and receiving apparatus for selecting an antenna less affected by fading in a portable electronic device (for example, a mobile phone) having a plurality of antennas and selecting an antenna by a diversity method. Background technique [0002] Radio waves in the high-frequency band have strong straight-line propagation properties. Portable electronic devices that perform wireless communication using these high-frequency radio waves are affected by strong rectilinear propagation. For example, when a portable electronic device is placed close to or close to a human body, the human body blocks the propagation path of the radio waves. The shielding of the propagation path by the human body increases the radio wave propagation loss, thereby deteriorating communication quality. [0003] In response to this problem, for example, Patent Document 1 below proposes a receiving method using an antenna capable o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/08H01Q21/00
CPCH01Q1/273H01Q21/28H01Q1/241H04B7/082
Inventor 奥山和典筒井英夫德田清仁
Owner OKI ELECTRIC IND CO LTD
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