Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2008-09-02
2008-09-02
Payne, David C. (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S295000, C375S316000, C714S810000
Reexamination Certificate
active
10485507
ABSTRACT:
The invention relates to a method for improving the performance of data transmissions over a communications channel, wherein data is coded and modulated for transmission, wherein coding the data results in differently coded bits. In order to allow for a simple way of a more flexible coding, it is proposed that the differently coded bits are mapped for modulation to different modulation symbols of a symbol alphabet, to which modulation symbols different relative reliabilities are assigned, and wherein by mapping the coded bits to the modulated symbols, different reliabilities are associated to differently coded bits depending on the conditions on the communications channel. The invention equally relates to a corresponding communications system and to elements of such a communications system.
REFERENCES:
patent: 6807238 (2004-10-01), Rhee et al.
patent: 2004/0049725 (2004-03-01), Golitschek et al.
patent: 0 490 552 (1992-06-01), None
Stefan Eriksson et al., “Comparison of Link Quality Control Strategies for Packet Data Services in EDGE”, May 1999, 49th IEEE Vehicular Technology Conference, vol. 2, pp. 938-942.
John Hokfelt et al., “Optimizing the energy of different bitstreams of turbo codes”, Aug. 1996, Proceedings of turbo coding seminar, pp. 59-63.
Park et al, “Transmission Power Allocation in Turbo Codes”, VTC 2000-Spring. 2000 IEEE 51stVehicular Technology Conference Proceedings. May 15-18, 2000, vol. 3 of 3. Conf. 51, pp. 2073-2075, XP000968369.
Hokfelt et al, “Optimizing the Energy of Different Bit Streams of Turbo Codes”, Proc. Turbo Coding Seminar, Aug. 1996, pp. 59-63, XP002902444.
Mohammadi et al, “Unequal Error Protection on the Turbo-Encoder Output Bits”, 1997 IEEE International Conference on Communications , Montreal, Jun. 8-12, 1997, vol. 2, Jun. 8, 1997, pp. 730-734, XP000742037.
Mohammadi et al, “Unequal Power Allocation to the Turbo-Encoder Output Bits with Application to CDMA Systems”, IEEE Transactions on Communications, IEEE Inc. vol. 47, No. 11, Nov. 1999, pp. 1609-1610, XP000871368.
Tirkkonen et al, “Tradeoffs between rate, puncturing and orthogonality in space-time block codes”, IEEE International Conference on Communications 2001. ICC2001, vol. 4, Jun. 11-14, 2001, pp. 1117-1121, XP002902445.
Mohammadi et al, “Effect of the labeling of the constellation points in a combined turbo-code and modulation.” Proc. 1996 Conf. Information Science and Systems CISS '96, Mar. 1996, pp. 67-69, XP002902446.
Eriksson et al, “Comparison of Link Quality Control Strategies for Packet Data Services in EDGE”, 49thIEEE Vehicular Technology Conference, May 16-20, 1999, vol. 2, pp. 938-942, XP10342128.
“Performance Evaluation of the Enhanced Symbol Mapping Method Based on Priority (SMP) in HSDPA”, Samsung Electronics Co., Busan, Korea, 3GPP TSG-RAN WGI Meeting #20—R1-010533, May 21-25, 2001.
“On Optimal Power Allocation for Turbo Codes”, Duman et al, ISIT 1997, Ulm, Germany, Jun. 29-Jul. 4, 1997, IEEE, p. 104-.
Duman et al, “The Union Bound for Turbo Coded Modulation Systems over Fading Channels”, Global Telecommunications Conference—Globecom '99, 1999, pp. 520-524.
“Turbo Coding”, Heegard et al, Kluwer Academic Publishers, date not avail.
Guarino Rahel
Squire Sanders & Dempsey L.L.P.
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