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Transmission power control method, mobile phone, and base station

A transmission power control and transmission power technology, applied in power management, transmission control/equalization, electrical components, etc., to solve problems such as inability to perform power control, low signal reception quality, and reduced communication quality

Inactive Publication Date: 2005-06-22
KOKUSA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Finally, as apparent from the above, the transmission power control of the conventional mobile station has a problem that, when the reception quality of a signal from any one of the base stations is low, proper power control cannot be performed during soft handover, thereby degrading the communication quality

Method used

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  • Transmission power control method, mobile phone, and base station
  • Transmission power control method, mobile phone, and base station
  • Transmission power control method, mobile phone, and base station

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Embodiment Construction

[0039] Hereinafter, preferred embodiments of the present invention will be explained with reference to the accompanying drawings. The mobile station in this embodiment basically has a structure based on the mobile station structure of the present invention described in the "Summary of the Invention" section. Therefore, here, in order to simplify the understanding of this embodiment, an example of the structure of the mobile station of the present invention is shown in FIG. 11 .

[0040] In the structural example of FIG. 11, the mobile station basically includes receiving means, reliability level obtaining means, target signal obtaining means, control content judging means and control means. The control means controls the signal generating and transmitting means for generating and transmitting the signal to be transmitted. In addition, the signal (information) supplied from the reliability level obtaining means to the target signal obtaining means may be single or plural. For...

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Abstract

Even if the reception qualities of signals from connected base stations are different from each other, the transmission power of the mobile phone can be appropriately controlled during soft handover. A mobile phone (16) capable of being connected to a plurality of base stations at the same time includes a reception radio section (3) and a TPC detection section (6, 7) for receiving and detecting TPC bits (transmission power control signals) from a plurality of base stations , a synthesis section (8) for combining the detected TPC bits to generate a synthesis signal and a transmission power control determination section (9) for controlling the transmission power of the mobile phone (16) according to the synthesis signal.

Description

technical field [0001] The present invention relates to a mobile station and a base station in a mobile communication system with transmission power control, a transmission power control method for the mobile station, and a recording medium containing a program for obtaining the transmission power control method. Background technique [0002] In mobile radio systems, a service area is formed by a number of radio areas providing a circular area centered on a base station. In order to completely cover the service area, base stations are provided with multiple radio areas overlapping on the edges of the radio areas. [0003] Since the radio zone is centered on the base station, the strength of the desired signal to be received by a mobile station in the service area is high in the vicinity of the base station but low near the edge of the radio zone. Efforts are made to maintain service in existing mobile radio systems by switching to another radio zone where better communicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005H04W36/18H04W52/40
CPCH04W36/18H04W52/40
Inventor 金田龙介萩原诚嗣东明洋
Owner KOKUSA ELECTRIC CO LTD