Base station device, communication terminal and transmission power control method

A technology for transmission power control and communication terminals, which is applied to communication between multiple stations, power management, wireless communication, etc., and can solve problems such as signal quality degradation and other user interference
CN1319285AInactive Publication Date: 2001-10-24PANASONIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANASONIC CORP
Publication Date
2001-10-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

Transmission power commands are fed on up link signals before one slot after estimation of transmission power of a down link just before return for convergence of transmission power values in a first slot into an ideal transmission power value at restart of transmission after suspension. Thereby, it may be realized that a converging rate of the above transmission power values is improved; signal quality of related users sides is improved, or interference power with signals of other users except the above users is reduced.
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Description

technical field

[0001] The present invention relates to a base station device, a communication terminal device, and a transmission power control method used in a digital wireless communication system. Background technique

[0002] The CDMA (Code Division Multiple Access) method is one of the multiple access method technologies when a plurality of stations simultaneously communicate using the same frequency band in mobile communications such as car phones and mobile phones. As other techniques, FDMA (Frequency Division Multiple Access) and TDMA (Time Division Multiple Access) are known, but CDMA is capable of achieving higher frequencies than these techniques. A way to utilize efficiency and accommodate more users.

[0003] In the CDMA method, since a plurality of users share the same frequency band, a certain user's signal is an interference signal to other users, and the signals of other users are also interference signals to the user. Therefore, in order to obtain unifor...

Claims

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