Pilot signals for synchronization and/or channel estimation

Details Pilot signals for synchronization and/or channel estimation Pilot signals for synchronization and/or channel estimation

2005-05-10

2005-05-10

Nguyen, Chau (Department: 2663)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S509000, C375S149000, C375S150000

Reexamination Certificate

active

06891815

ABSTRACT:
There is provided a frame synchronization method using the correlation characteristic of a pilot having a minimum side lobe coefficient when the chip rate of the physical channel up-link or down-link is 3.8 Mcps in a W-CDMA mobile communication system. The frame synchronization method using an optimal pilot pattern, including the steps of receiving code sequences with the slot length of (2l+1) for a radio frame according to an arbitrary chip rate; arranging the received code sequences corresponding to the slot length for the radio frame and performing auto correlation according to a reception location of the code sequences, and simultaneously, arranging the code sequences corresponding to the slot length for the radio frame and performing cross correlation according to a reception location of the code sequences; and observing the correlation results, to detect frame synchronization.

REFERENCES:
patent: 5602881 (1997-02-01), Shiino et al.
patent: 5881057 (1999-03-01), Komatsu
patent: 6058138 (2000-05-01), Fukumasa et al.
patent: 6128486 (2000-10-01), Keskitalo et al.
patent: 6246714 (2001-06-01), Okamoto
patent: 6335946 (2002-01-01), Winnberg
patent: 6356605 (2002-03-01), Hosur et al.
patent: 6363060 (2002-03-01), Sarkar
patent: 6363104 (2002-03-01), Bottomley
patent: 6526091 (2003-02-01), Nystrom et al.
patent: 6542563 (2003-04-01), Shoji
patent: 6594473 (2003-07-01), Dabak et al.
patent: 6661832 (2003-12-01), Sindhushayana et al.
patent: 10-505477 (1998-05-01), None
patent: 10327126 (1998-12-01), None
patent: WO 9702666 (1997-01-01), None
TS S1.11 V1.1.0, Mar. 1999, 3GPP “Physical Channels and Mapping of Transport Channels onto Physical Channels”, pp. 1-33.
TS 25.211 V2.0.1, Jun. 1999, 3GPP “Physical Channels and Mapping of Transport Channels onto Physical Channels”, pp. 1-41.
Kohno, Ryuji, Hideki Imai, Mitsutoshi Hatori, and Subbarayan Pasupathy, “Combination of an Adaptive Array Antenna and a Canceller or Interference for Direct-Sequence Spread-Spectrum Multiple-Access System,” IEEE Journal on Selected Areas in Communications vol. 8, No. 4, May 1990, pp. 675-682.

Affiliated with

Also associated with

Rating

Pilot signals for synchronization and/or channel estimation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pilot signals for synchronization and/or channel estimation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pilot signals for synchronization and/or channel estimation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3376052