GB0112483D0 - A mobile communications device - Google Patents

A mobile communications device

Info

Publication number
GB0112483D0
GB0112483D0 GBGB0112483.3A GB0112483A GB0112483D0 GB 0112483 D0 GB0112483 D0 GB 0112483D0 GB 0112483 A GB0112483 A GB 0112483A GB 0112483 D0 GB0112483 D0 GB 0112483D0
Authority
GB
United Kingdom
Prior art keywords
transmit power
reduction
battery
power
level
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GBGB0112483.3A
Other versions
GB2375922A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aeroflex Cambridge Ltd
Original Assignee
Ubinetics Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ubinetics Ltd filed Critical Ubinetics Ltd
Priority to GB0112483A priority Critical patent/GB2375922A/en
Publication of GB0112483D0 publication Critical patent/GB0112483D0/en
Publication of GB2375922A publication Critical patent/GB2375922A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/007—Control dependent on the supply voltage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/23—Indication means, e.g. displays, alarms, audible means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/362—Aspects of the step size
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

A mobile communication device, which may be a mobile telephone, comprising means to detect a reduction in the available battery power by detecting a corresponding reduction in its transmit power. In response, if a reduction is detected, the device sets its transmit power to a reduced second level which will take less current from the battery and therefore prolong the life of the battery. Furthermore this process may be repeated and the transmit power may be reduced in steps of about 2 dB to lower the transmit power level each time a further reduction in the available battery power is detected. To detect the reducing transmit power the device may monitor a feedback signal 21 from the transmitter 19 and use a comparator 15 to determine a reduction in the transmit power. The device may also comprise means to deny a request from an external system to increase the transmit power. The device may also provide a visual or audio alert that the transmit power has been set to a lower level.
GB0112483A 2001-05-22 2001-05-22 Reducing transmission power in response to a detected decrease in available battery power Withdrawn GB2375922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0112483A GB2375922A (en) 2001-05-22 2001-05-22 Reducing transmission power in response to a detected decrease in available battery power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0112483A GB2375922A (en) 2001-05-22 2001-05-22 Reducing transmission power in response to a detected decrease in available battery power

Publications (2)

Publication Number Publication Date
GB0112483D0 true GB0112483D0 (en) 2001-07-11
GB2375922A GB2375922A (en) 2002-11-27

Family

ID=9915101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0112483A Withdrawn GB2375922A (en) 2001-05-22 2001-05-22 Reducing transmission power in response to a detected decrease in available battery power

Country Status (1)

Country Link
GB (1) GB2375922A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10304200A1 (en) * 2003-01-29 2004-08-19 Siemens Ag Power control method for a mobile communication terminal
GB2411547A (en) * 2004-02-27 2005-08-31 Nec Technologies Dynamically determining a power class of a mobile radio communications device
CN101326478B (en) * 2005-10-14 2010-07-07 捷讯研究有限公司 System and method for managing battery slump
US20130329631A1 (en) * 2012-06-06 2013-12-12 Muhammad Adeel Alam Methods and apparatus for enhanced transmit power control

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199723A (en) * 1978-02-24 1980-04-22 Rockwell International Corporation Automatic modulation control apparatus
US4521912A (en) * 1983-06-09 1985-06-04 General Electric Company Low power indicating circuit for a radio transmitter
JPH0644716B2 (en) * 1984-08-14 1994-06-08 日本電気株式会社 Wireless communication device
US5896261A (en) * 1997-11-25 1999-04-20 Motorola, Inc. Power down protection circuit for an electronic device
JP2926576B1 (en) * 1998-04-03 1999-07-28 埼玉日本電気株式会社 Wireless telephone equipment
JP3719482B2 (en) * 1998-07-29 2005-11-24 株式会社デンソー Wireless communication device
US6366774B1 (en) * 1999-03-30 2002-04-02 Nokia Telecommunications, Oy Method and apparatus for providing RF output power compensation for a battery backup system

Also Published As

Publication number Publication date
GB2375922A (en) 2002-11-27

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)