Transmission power control method and apparatus for mobile communication system

• US 7,421,283 B2
• Filed: 10/10/2006
• Issued: 09/02/2008
• Est. Priority Date: 11/27/1996
• Status: Expired due to Fees

• Current Assignee: FIPA Frohwitter Intellectual Property AG
• Original Assignee: Hitachi Communication Technologies, Ltd. (Hitachi, Ltd.)
• Inventors: Doi, Nobukazu, Yano, Takashi, Esmailzadeh, Riaz
• Primary Examiner(s): Trinh; Sonny
• Application Number:
  US11/544,655
• Publication Number:
  US 20070032197A1
• Time in Patent Office: 693 Days
• Field of Search: 455/522, 455/127.1, 455/67.11, 455/517, 455/68, 455/572, 455/574, 455/13.4, 455/63.1, 455/67.13, 455/114.2, 455/115.1, 370/317, 370/318, 370/332
• 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 mobile terminal which communicates with a base station by radio, 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 mobile terminal 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 mobile terminal 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 mobile terminal 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.