METHOD AND APPARATUS FOR REDUCING PAGING-RELATED DELAYS

Title:

METHOD AND APPARATUS FOR REDUCING PAGING-RELATED DELAYS

Document Type and Number:

WIPO Patent Application WO2005011296

Kind Code:

A3

Abstract:

In general, paging-related delays are reduced by empowering an idle mobile (120) to initiate a transition to semi-dormant, unslotted mode, and/or RSCI modes, based on triggers (304) known to the MS. This is an efficient manner (in terms of both RF and battery-life cost considerations) in which to use semi-dormant and RSCI modes (306). If the MS (120) is able to anticipate a paging channel (PCH) message (for example, after sending or receiving an SMS or presence update), then the MS can intelligently reduce its slot cycle index for a short period of time, sacrificing a small amount of battery life, when the R-SCI is most likely to deliver improved service. Moreover, if the MS is low mobility (i.e. low idle handoff rate), then the MS can transition to a semi-dormant mode with very little cost, since it will not need to send many radio environment reports.

Inventors:

KELLEY SEAN S (US)
HARRIS JOHN M (US)

Application Number:

PCT/US2004/016822

Publication Date:

March 03, 2005

Filing Date:

May 28, 2004

Export Citation:

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Assignee:

MOTOROLA INC (US)
KELLEY SEAN S (US)
HARRIS JOHN M (US)

International Classes:

H04W68/00; H04W76/04; (IPC1-7): H04B7/00; H04Q7/20

Foreign References:

US5937345A	1999-08-10
US6519239B1	2003-02-11

Other References: