Verification methods and apparatus for improving acquisition...

Details Verification methods and apparatus for improving acquisition... Verification methods and apparatus for improving acquisition...

2001-09-06

2010-10-19

Patel, Jayanti K (Department: 2419)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S350000

Reexamination Certificate

active

07817596

ABSTRACT:
Methods and apparatus are presented to optimize the likelihood of a successful acquisition of frame timing information of an asynchronous base station by providing a mechanism that copes with short-term degradations caused by a dynamic radio environment. An acquisition search is performed in a plurality of stages, wherein a declaration indicating a failure at a stage is delayed through the use of a verification stage. The verification stage can be repeated a variable number of times. The number of repetitions of the verification stage can be dependent upon the stage at which the failure occurred. Declaration of failure occurs only after the predetermined number of verification searches have been performed.

REFERENCES:
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5177740 (1993-01-01), Toy et al.
patent: 6256235 (2001-07-01), Lee
patent: 6363060 (2002-03-01), Sarkar
patent: 2001/0021199 (2001-09-01), Lee et al.
patent: 2002/0122557 (2002-09-01), Aihara et al.
patent: 1202484 (2002-05-01), None
patent: 0213548 (2002-02-01), None
Higuchi, et al: “Fast Cell Search Algorithm in Inter-Cell Asynchronous DS-CDMA Mobile Radio” IEICE Trans. Commun., vol. E81-B. No. 7: 1527-1534, Jul. 1998.
Kim, et al: “I/Q Multiplexedd Code Assignment for Fast Cell Search in Asynchronous DS/CDMA Cellular Systems” IEEE Communications Letters. vol. 2(6): 159-161, Jun. 1998.
Jun-Kui Ahn, et al: “New Cell Search Algorithm for Inter-Cell Asynchronous Mode DS/CDMA Mobile Radio System” Vehicular Technology Conference: 1336-1340, May 18, 1998.
3GPP TS 25.211 V4.2.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Physical Channels and Mapping of Transport Channels onto Physical Channels (FDD)(Release 4)(Sep. 2001).
3GPP TS 25,212 V4.2.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Multiplexing and Channel Coding (FDD)(Release 4)(Sep. 2001).
3GPP TS 25.213 V3.6.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network: Spreading and Modulation (FDD)(Release 1999)(Jun. 2001).
3GPP TS 25.214, 3rd Generation Partnership Project: Technical Specification Group Radio Access Network; Physical Layer Procedures (FDD)(Release 1999)(Sep. 2001).
TIA/EIA/2000.2-A, Physical Layer Standard for cdma2000 Standards for Spread Spectrum Systems (Revision of TIA/EIA/IS-2000.2)(Mar. 2000).
TIA/EIA-95-A, Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum Cellular System (Revision of TIA/EIA/IS-95)(May 1995).
European Search Report, EP07011882 - European Patent Office, Jul. 11, 2007.
European Search Opinion, EP07011882 - European Patent Office, Jul. 23, 2007.

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