Techniques for supporting GSM to W-CDMA reselection

Details Techniques for supporting GSM to W-CDMA reselection Techniques for supporting GSM to W-CDMA reselection

2003-03-06

2010-11-09

Kincaid, Lester (Department: 2617)

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

C455S552100

Reexamination Certificate

active

07830853

ABSTRACT:
Techniques to support cell reselection from GSM to W-CDMA. A dual-mode terminal determines whether or not the GSM network that it is currently camped on supports Release 99 functionality and hence whether or not the GSM network is capable of broadcasting information for W-CDMA neighbor cells. This determination may be made based on the settings for certain status bits in messages transmitted by the GSM network and/or other information available to the terminal. The terminal can initiate a search for W-CDMA cells if it is deemed that the current GSM network does not support Release 99 functionality. The terminal may also determine the scope of the W-CDMA search and when to perform the W-CDMA search based on information stored by the terminal. The reselection from GSM to W-CDMA may be achieved based on measurements obtained from the W-CDMA search and other pertinent information (e.g., threshold values used to compare the measurements).

REFERENCES:
patent: 6788959 (2004-09-01), Jokinen et al.
patent: 6845095 (2005-01-01), Krishnarajah et al.
patent: 7283497 (2007-10-01), Mueller
patent: 2003/0040331 (2003-02-01), Zhao
patent: 2289191 (1994-04-01), None

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