System and method for robust cell detection

Details System and method for robust cell detection System and method for robust cell detection

2011-07-19

2011-07-19

Cho, Hong (Department: 2467)

Multiplex communications

Network configuration determination

Using a particular learning algorithm or technique

C370S328000

Reexamination Certificate

active

07983197

ABSTRACT:
A wireless communication receiver performs robust cell searching, excluding interference due to UL transmissions from other UE, by qualifying the output of a matched filter with a metric indicative of the momentary signal-to-noise ratio (SNR). The momentary SNR metric is derived over the same amount of samples as the length of the matched filter. By discarding filter outputs during low momentary SNR, synchronization interference from UL transmissions is avoided. The momentary SNR metric and filter outputs are efficiently calculated, with only a few states and operations, compared to a conventional tapped delay line filter implementation. A limited list of cell candidates is populated, with information on correlation, timing, cell identity within cell group, and SNR metric for the K strongest candidates with respect to the matched filter correlation values. This list is used for later cell search stages, where a secondary synchronization channel is decoded.

REFERENCES:
patent: 6996162 (2006-02-01), Hosur et al.
patent: 7065064 (2006-06-01), Chitrapu
patent: 7224718 (2007-05-01), Chang et al.
patent: 7415084 (2008-08-01), Pietraski et al.
patent: 7729315 (2010-06-01), Lindoff et al.
patent: 2003/0117979 (2003-06-01), Chitrapu
patent: 2003/0117996 (2003-06-01), Lim et al.
patent: 2003/0179708 (2003-09-01), Kamerman et al.
patent: 2004/0058650 (2004-03-01), Palenius et al.
patent: 2006/0182168 (2006-08-01), Wang et al.
patent: 2007/0248068 (2007-10-01), Onggosanusi et al.
3GPP TS 36.211, “3rd Generation Partnership project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Channels and Modulation (Release 8)”, V8.4.0, Section 6.11. Sep. 2008. 3rd Generation Partnership Project (3GPP), Valbonne, France.
3GPP TS 36.101, “3rd Generation Partnership project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) radio transmission and reception (Release 8)”, V8.3.0, Section 5.2. Sep. 2008. 3rd Generation Partnership Project (3GPP), Valbonne, France.

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