Method and apparatus for providing transmit diversity with...

Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...

Reexamination Certificate

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C370S333000, C370S347000, C370S542000, C370S215000, C375S347000, C455S436000

Reexamination Certificate

active

10077084

ABSTRACT:
A method and apparatus are provided that uses the feedback information from an ARQ signal that is received to control the transmit diversity of a transmitter. The method provides for improved performance over some existing ARQ plus open loop transmit diversity schemes in terms of bit-error rate for a given Eb/No. Furthermore, the method does not require extra signaling used by closed loop TD schemes.

REFERENCES:
patent: 5689439 (1997-11-01), Weerackody et al.
patent: 6157612 (2000-12-01), Weerackody et al.
patent: 6370129 (2002-04-01), Huang
patent: 6377631 (2002-04-01), Raleigh
patent: 6377632 (2002-04-01), Paulraj et al.
patent: 6999472 (2006-02-01), Hamalainen et al.
patent: 2002/0165626 (2002-11-01), Hammons et al.
patent: 2002/0196842 (2002-12-01), Onggosanusi et al.
patent: 2003/0016637 (2003-01-01), Khayrallah et al.
patent: 2005/0020215 (2005-01-01), Hottinen
patent: 2005/0078761 (2005-04-01), Hottinen et al.
Chase, David, “Code Combining—A Maximum-Likelihood Decoding Approach for Combining an Arbitrary Number of Noisy Packets,” IEEE Transactions on Communications. vol. COM-33, No. 5, May 1985.
Lucent Technologies, “Preliminary Link Level Results for HSDPA Using Multiple Antennas,” TSG-R WG1 document, TSGR1#16(00) 1218, Oct. 2000, Pusan, Korea.
FUJITSU, “Link Level Simulation Results for HSDPA: Comparison Between MIMO and Tx Diversity,” TSGR1#19(01) 0286, Feb.-Mar. 2001, Las Vegas, Nevada.
Texas Instruments, “Double-STTD Scheme for HSDPA Systems with Four Transmit Antennas: Linx Level Simulation Results,” TSG-R WG1 document, TSGR1#20(01)0458, May 2001, Busan, Korea.
Texas Instruments, “Improved Double-STTD Schemes Using Asymmetric Modulation and Antenna Shuffling,” TSG-R WG1 document, TSGR1#20(01)0459, May 2001, Busan, Korea.
Texas Instruments, “Double-STS Scheme for 1xEV-DV Systems with Four Transmit Antennas: Link Level Simulation Results,” C50-20010820-007, Aug. 2001, Portland, Oregon.
LG ELECTRONICS, et al., “Updated Joint Physical Layer Proposal for 1xEV-DV,” 3GPP2-C50-20010611-009. Jun. 2001, Vancouver, BC, Canada.
3rdGeneration Partnership Project, Technical Specification Group Radio Access Network; “Physical Layer Aspects of UTRA High Speed Downlink Packet Access.” 3GPP TR 25.848, V4.0.0. Aug. 2001.
MOTOROLA, et al., “1XTREME Physical Specification for Integrated Data and Voice Services in cdma2000 Spread Spectrum Systems,” C00-20010611-007, Jun. 2001.

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