Method and apparatus for data and pilot structures...

Multiplex communications – Generalized orthogonal or special mathematical techniques – Quadrature carriers

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C370S350000

Reexamination Certificate

active

07821913

ABSTRACT:
Techniques for transmitting data in a manner to facilitate equalization at a receiver are described. Guard intervals are appended to data blocks such that each data block has a guard interval at the beginning of the data block and a guard interval at the end of the data block. Each guard interval may be discontinuous transmission (DTX), a polyphase sequence, or some other known sequence. Pilot is appended to each set of at least one data block. The data blocks, pilot, and guard intervals may be sent using various slot structures and are processed for transmission. The processing may include mapping the data blocks to at least one physical channel, channelizing the data blocks for each physical channel with a channelization code, combining all physical channels, and scrambling the combined data, pilot, and guard intervals with a scrambling code.

REFERENCES:
patent: 6304611 (2001-10-01), Miyashita et al.
patent: 6661771 (2003-12-01), Cupo et al.
patent: 6930996 (2005-08-01), Rudolf et al.
patent: 6993068 (2006-01-01), Isaksson et al.
patent: 7260054 (2007-08-01), Olszewski
patent: 7280552 (2007-10-01), Isson
patent: 7411894 (2008-08-01), Ro et al.
patent: 7471932 (2008-12-01), Wu et al.
patent: 7602696 (2009-10-01), Rhodes
patent: 2005/004428 (2005-01-01), None
Tsumura et al, Design and Performance of Quasi-Synchronous Multi-Carrier CDMA System, IEEE, 5 pages, 2001.
3GPP TS 25.308 v5.2.0, High Speed Downlink Packet Access (HSDPA), 30 pages, 2002.
Yonghong Zeng et al. “Pilot Cyclic Prefixed Single Carrier Communication: Channel Estimation and Equalization.” IEEE Signal Processing Letters IEEE USA, vol. 12, No. 1. Jan. 2005, pp. 56-59.
Naofal Al-Dhahir et al. “A New Multicarrier Transceiver Based on the Discrete Cosine Transform.” IEEE Communications Society: Wireless Communications and Networking Conference, 2005 IEEE New Orleans, LA, USA Mar. 13-17, 2005, Piscataway, NJ, USA, IEEE, Mar. 13, 2005. pp. 45-50.
International Search Report and Written Opinion—PCT/US2006/011668, International Search Authority—European Patent Office—Aug. 14, 2006.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for data and pilot structures... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for data and pilot structures..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for data and pilot structures... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4153126

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.