Adaptive handover measurement interval

Details Adaptive handover measurement interval Adaptive handover measurement interval

2005-05-19

2008-12-02

Ramakrishnaiah, Melur (Department: 2614)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S441000, C455S443000

Reexamination Certificate

active

07460869

ABSTRACT:
Apparatus and methods are provided for adaptively determining a handover measurement interval. Power savings are achieved when a mobile terminal in a digital broadcast broadband network does not constantly attempt to measure the signal strength of nearby cells. By determining cell parameters, such as size and carrier frequency, and also determining dynamic information, such as signal strength and mobile speed over time, the time until the next handover measurement is adjusted up or down. When a mobile terminal is moving towards a transmitter in a cell, the handover measurement interval may be lengthened, and when a mobile terminal is moving away from a transmitter, the interval may be shortened.

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Article found at: http://www.eurasip.org/content/Eusipco/IST05/papers/272.pdf X.D. Yang, et al., “An Investigation of and a Proposal for Handover Decision-maiking in DVB-H”, 14th IST Mobile & Wireless Communication Summit, Dresden, Jun. 19-23, 2005.

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