TRANSMISSION POWER CONTROL SYSTEM AND APPARATUS FOR MOBILE COMMUNICATION SYSTEM

• US 20090005107A1
• Filed: 08/27/2008
• Published: 01/01/2009
• Est. Priority Date: 11/27/1996
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Yano, Takashi, Esmailzadeh, Riaz, Doi, Nobukazu
• Application Number:
  US12/198,918
• Publication Number:
  US 20090005107A1
• Time in Patent Office: Days
• US Class Current: 455/522
• CPC Class Codes: H04W 52/24 using SIR [Signal to Interference Ratio] or other wireless path parameters
• CPC Class Codes: H04W 52/362 Aspects of the step size

Abstract

A method and apparatus for controlling the power of a signal transmitted between a base station and a mobile terminal which constitute a mobile communication system. At least one of the base station and the mobile terminal has functions to compare a predetermined reference value and a necessary transmission power obtained as a result of transmission power control in order to compensate for a signal intensity fluctuation occurring on a link between the base station and the mobile terminal, temporarily stopping the transmission if the necessary transmission power is larger than a predetermined permissible value, and transmit the signal if the necessary transmission power is equal to or smaller than the predetermined permissible value.

Claims

1. A communication system comprising at least one mobile terminal which communicates with a base station by radio, the mobile terminal comprising:

an antenna for receiving signals from said base station and transmitting signals to said base station; and

a processor for judging whether or not to transmit data to said base station based on a condition of a channel between said mobile terminal and said base station,

wherein, if said processor judges not to transmit said data, said transmission of the data is temporarily stopped.

2. A communication system according to claim 1, wherein, if said processor judges not to transmit said data, said transmission of the data is stopped for at least a slot period.

3. A communication system according to claim 2, wherein said condition of a channel includes a signal intensity of a signal received via the channel between said mobile terminal and said base station.

4. A communication system according to claim 1, wherein said condition of a channel includes a signal intensity of a signal received via the channel between said mobile terminal and said base station.