GB2368235B - Mobile communications - Google Patents

Mobile communications

Info

Publication number
GB2368235B
GB2368235B GB0025029A GB0025029A GB2368235B GB 2368235 B GB2368235 B GB 2368235B GB 0025029 A GB0025029 A GB 0025029A GB 0025029 A GB0025029 A GB 0025029A GB 2368235 B GB2368235 B GB 2368235B
Authority
GB
United Kingdom
Prior art keywords
frequency clock
period
high frequency
turned
threshold
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.)
Expired - Fee Related
Application number
GB0025029A
Other versions
GB2368235A (en
GB0025029D0 (en
Inventor
Shuichi Otake
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.)
Matsushita Communication Industrial UK Ltd
Panasonic Holdings Corp
Original Assignee
Matsushita Communication Industrial UK Ltd
Matsushita Electric Industrial Co 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 Matsushita Communication Industrial UK Ltd, Matsushita Electric Industrial Co Ltd filed Critical Matsushita Communication Industrial UK Ltd
Priority to GB0025029A priority Critical patent/GB2368235B/en
Publication of GB0025029D0 publication Critical patent/GB0025029D0/en
Publication of GB2368235A publication Critical patent/GB2368235A/en
Application granted granted Critical
Publication of GB2368235B publication Critical patent/GB2368235B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04W52/0287—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level changing the clock frequency of a controller in the equipment
    • H04W52/029—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level changing the clock frequency of a controller in the equipment reducing the clock frequency of the controller
    • 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 terminal receiving a transmitted cycle comprising first and second data parts operates in a power-saving mode in which a relatively high power-consuming clock is turned off during the first part of the cycle in which the first data part is received. This standby period is timed by a less accurate but lower power low frequency clock. The high frequency clock is turned on at the end of the timed period and operates during a second period while the second data part is being received. The error in the timing of the turning-on of the high frequency clock is determined and compared with a threshold. If the timing error is below the threshold, the high frequency clock is again turned off at the end of the second period for the next standby period. If the timing error is greater than the threshold, the high frequency clock is left running until the end of the second period in a later cycle. By this means correct reception of paging signals is not impaired by excessive error in the time at which the high frequency clock is turned on.
GB0025029A 2000-10-12 2000-10-12 Mobile communications Expired - Fee Related GB2368235B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0025029A GB2368235B (en) 2000-10-12 2000-10-12 Mobile communications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0025029A GB2368235B (en) 2000-10-12 2000-10-12 Mobile communications

Publications (3)

Publication Number Publication Date
GB0025029D0 GB0025029D0 (en) 2000-11-29
GB2368235A GB2368235A (en) 2002-04-24
GB2368235B true GB2368235B (en) 2004-03-17

Family

ID=9901159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0025029A Expired - Fee Related GB2368235B (en) 2000-10-12 2000-10-12 Mobile communications

Country Status (1)

Country Link
GB (1) GB2368235B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2012436B1 (en) 2007-07-05 2016-03-30 Sequans Communications Method for switching a component to an operation mode for reducing power consumption in a wireless communication device
US8031024B1 (en) 2008-02-28 2011-10-04 Marvell International Ltd. Temperature-corrected frequency control with crystal oscillators
US8731119B2 (en) * 2011-03-18 2014-05-20 Marvell World Trade Ltd. Apparatus and method for reducing receiver frequency errors
US9289422B2 (en) 2011-03-24 2016-03-22 Marvell World Trade Ltd. Initial acquisition using crystal oscillator
US9872335B2 (en) 2015-03-06 2018-01-16 Marvell International Ltd. Iterative receiver wake-up for long DRX periods
US10333525B1 (en) 2015-12-07 2019-06-25 Marvell International Ltd. Digitally-based temperature compensation for a crystal oscillator
WO2023245527A1 (en) * 2022-06-23 2023-12-28 Telefonaktiebolaget Lm Ericsson (Publ) Radio resource allocation in a communication network

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324681A (en) * 1997-02-28 1998-10-28 Motorola Inc Re-synchronisation and clock calibration in slotted paging mode CDMA radiotelephone

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324681A (en) * 1997-02-28 1998-10-28 Motorola Inc Re-synchronisation and clock calibration in slotted paging mode CDMA radiotelephone

Also Published As

Publication number Publication date
GB2368235A (en) 2002-04-24
GB0025029D0 (en) 2000-11-29

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20081012