High-speed all-band-cell search cellular phone

Details High-speed all-band-cell search cellular phone High-speed all-band-cell search cellular phone

2006-08-22

2006-08-22

Urban, Edward F. (Department: 2685)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S161300, C455S525000

Reexamination Certificate

active

07096016

ABSTRACT:
A cellular phone includes a RSSI measurement circuit for measuring power levels of received baseband signal at divided band portions of the whole band, a band sorting circuit sorting the divided band portions based on the descending order of the power levels, and a cell search circuit searching the carriers of each divided band portion in the order of the results of the sorting, to thereby determine a tentative waiting cell.

REFERENCES:
patent: 6052590 (2000-04-01), Hicks et al.
patent: 6778827 (2004-08-01), Anderson et al.
patent: 6807163 (2004-10-01), Shi
patent: 6810251 (2004-10-01), Hassan et al.
patent: 7013140 (2006-03-01), Ostberg et al.
patent: WO 01/33881 (2001-05-01), None
Bill Mitchell, “Variable Bandwidth RSSI Scanning”, Motorola Technical Developments, Motorola Inc., vol. 28, Aug. 1996, pp. 22-24.
Universal Mobile Telecommunications System (UMTS); Physical layer procedures (FDD) (3GPP TS 25.214 version 3.4.0 Release 1999), Sep. 2000, pp. 1-48, XP-002166612.

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