Adaptive allocation for variable bandwidth multicarrier...

Details Adaptive allocation for variable bandwidth multicarrier... Adaptive allocation for variable bandwidth multicarrier...

2006-06-07

2010-10-19

Duong, Frank (Department: 2474)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Quadrature carriers

Reexamination Certificate

active

07817532

ABSTRACT:
Data is distributed among the channels of an asynchronous data subscriber loop (ADSL) communications system in accordance with an adaptive algorithm which from time to time measures the signal to noise ratio of the various channels and finds a margin for each channel dependent on achievement (where possible) of a given bit error rate and a desired data transmission rate. The margin distribution is achieved by augmenting the constellation signal to noise ratio to enhance computational efficiency and allow redetermination of bit allocation tables during transmission as necessary. Pairs of bit allocation tables are maintained at the transmitter and receiver and one table of each pair at the transmitter and receiver is updated while the other pair is in use for controlling communication.

REFERENCES:
patent: 3573380 (1971-04-01), Darlington
patent: 4131766 (1978-12-01), Narasimha
patent: 4568156 (1986-02-01), Dane
patent: 4679227 (1987-07-01), Hughes-Hartogs
patent: 4731816 (1988-03-01), Hughes-Hartogs
patent: 4802190 (1989-01-01), Schouhamer Immink
patent: 4912763 (1990-03-01), Galand et al.
patent: 5048054 (1991-09-01), Eyuboglu et al.
patent: 5128964 (1992-07-01), Mallory
patent: 5206886 (1993-04-01), Bingham
patent: 5285474 (1994-02-01), Chow et al.
patent: 5327574 (1994-07-01), Monma et al.
patent: 5400322 (1995-03-01), Hunt et al.
patent: 5428790 (1995-06-01), Harper et al.
patent: 5452288 (1995-09-01), Rahuel et al.
patent: 5479447 (1995-12-01), Chow et al.
patent: 5495483 (1996-02-01), Grube et al.
patent: 5497398 (1996-03-01), Tzannes et al.
patent: 5521906 (1996-05-01), Grube et al.
patent: 5533008 (1996-07-01), Grube et al.
patent: 5555244 (1996-09-01), Gupta et al.
patent: 5596604 (1997-01-01), Cioffi et al.
patent: 5598435 (1997-01-01), Williams
patent: 5636246 (1997-06-01), Tzannes et al.
patent: 5812599 (1998-09-01), Van Kerckhove
patent: 5822372 (1998-10-01), Emami
patent: 5903608 (1999-05-01), Chun
patent: 6052411 (2000-04-01), Mueller et al.
patent: 6072779 (2000-06-01), Tzannes et al.
patent: 6266348 (2001-07-01), Gross et al.
patent: 6567473 (2003-05-01), Tzannes
patent: 0473465 (1992-03-01), None
patent: 0652677 (1995-05-01), None
patent: 0652677 (1995-05-01), None
patent: 0473465 (1996-03-01), None
patent: 0703685 (1996-03-01), None
patent: 0753947 (1997-01-01), None
patent: 0762701 (1997-03-01), None
patent: 0762701 (1997-03-01), None
patent: 0812087 (1997-12-01), None
patent: 0812087 (1997-12-01), None
patent: 0812087 (1997-12-01), None
patent: 0820168 (1998-01-01), None
patent: 0820168 (1998-01-01), None
patent: 0840474 (1998-05-01), None
patent: 0905948 (1999-03-01), None
patent: 0753947 (2002-11-01), None
patent: 0905948 (2003-07-01), None
patent: 0840474 (2003-12-01), None
patent: 9-51328 (1997-02-01), None
patent: 2000-514991 (2000-11-01), None
patent: 2000-514991 (2000-11-01), None
patent: WO 86/07223 (1986-12-01), None
patent: WO 86/07223 (1986-12-01), None
patent: WO 97/15131 (1997-04-01), None
patent: WO 97/15131 (1997-04-01), None
patent: WO 97/15131 (1997-04-01), None
patent: WO 98/10556 (1998-03-01), None
patent: WO 98/10556 (1998-03-01), None
patent: WO 98/10556 (1998-03-01), None
patent: WO 98/27665 (1998-06-01), None
patent: WO 98/27665 (1998-06-01), None
patent: 98/52312 (1998-11-01), None
patent: 98/52312 (1998-11-01), None
patent: WO 98/57472 (1998-12-01), None
patent: WO 98/57472 (1998-12-01), None
patent: WO 99/16224 (1999-04-01), None
patent: WO 99/16224 (1999-04-01), None
patent: WO 99/18701 (1999-04-01), None
patent: WO 99/18701 (1999-04-01), None
Chow et al, A Practical Discrete Multitone Transceiver Loading Algorithm for Data Transmission over Spectrally Shaped Channels, IEEE, 3 pages, Apr. 1995.
PCT Notification of Transmittal of International Preliminary Examination Report, International Application No. PCT/US98/11845 mailed May 14, 1999.
PCT Notification of Transmittal of International Search Report or the Declaration, International Application No. PCT/US98/11845 mailed Nov. 19, 1998.
Bingham, John A. C., Multicarrier Modulation for Data Transmission: An Idea Whose Time Has Come, IEEE Communications Magazine, May 1990, pp. 5-14.
Bingham, John A. C., RFI Suppression in Multicarrier Transmission Systems, Amati Communications San Jose, CA, IEEE Communications Magazine, May 1996, pp. 1026-1030.
Chow et al., Bandwidth Optimization for High Speed Data Transmission over Channels with Severe Intersymbol Interference, IEEE, 1992, pp. 59-63.
European Search Report for European Application No. EP 06007363 completed on Aug. 31, 2006.
Office Action for Canadian Patent Application No. 2293239 mailed Sep. 30, 2005.
Office Action for European Patent Application No. 98926433.8 mailed Nov. 8, 2004.
Gallager, “Information Theory and Reliable communication”, 1968, p. 383-390, cover and preface.
Wozencraft “Principles of Communication Engineering”, 1965, p. 285-357, cover and preface.
Notification of Reasons for Refusal (including translation) for Japanse Panent Application No. 1999(Hei11)-503053, dispatched Dec. 4, 2007.
Official Action for European Application No. EP 06007363 mailed Feb. 21, 2008.
European Search Report and Opinion for European Patent Application No. 08007677.1, mailed May 26, 2008.
“A series of new chipset models—Transmission scheme is bipolarized in CAP and DMT”, Nikkei Electronics, Japan, Nov. 18, 1996, pp. 104-108 (relevance believe to be described in the Sep. 1, 2008, Notification of Reasons for Refusal for Japanse Panent Application No. 2006-341428 disclosed herein).
“Dual PLL Synthesizer for PHS Cell Station”, Yoshihisa Suzuki et al., National Technical Report, Japan, Matsushita Electric Industrial Co., Ltd., Aug. 1996, vol. 42, No. 4, pp. 9-13 (Translated abstact).
Notification of Reasons for Refusal (including translation) for Japanese Patent Application No. 2006-341428, dispatched Sep. 1, 2008.
Notification of Reasons for Refusal (including translation) for Japanese Patent Application No. 2006-341416, dispatched Aug. 25, 2008.
Office Action, mailed Mar. 7, 2006, for U.S. Appl. No. 10/768,138.
Office Action, mailed Jan. 15, 2003, for U.S. Appl. No. 09/421,835.
Final Office Action, mailed Nov. 5, 2003, for U.S. Appl. No. 09/421,835.
Office Action, mailed Mar. 1, 1999, for U.S. Appl. No. 08/873,421.
Final Office Action, mailed Sep. 13, 1999, for U.S. Appl. No. 08/873,421.
Office Action, mailed Aug. 20, 2008, for JP Application Serial No. 2006341416.
Office Action, mailed Aug. 20, 2008, for JP Application Serial No. 2006341428.
Office Action, mailed Dec. 4, 2007, for JP Application Serial No. 11-503053.
Office Action, mailed Aug. 26, 2008, for JP Application Serial No. 11-503053.
Office Action, mailed Jul. 24, 2000, for AU Application Serial No. 199878273.
Office Action, mailed Sep. 30, 2005, for CA Application No. 2293239.
Office Action, mailed Apr. 6, 2009, for Japanese Patent Application 2006-341428, 4 pages.
Notice of Allowance, mailed Nov. 24, 2009, for Japanese Patent Application 2006-341428, 5 pages.
Search Report, mailed May 15, 2008, for European Patent Application 8007677.1, 2 pages.
Office Action, mailed Oct. 28, 2009, for European Patent Application 8007677.1, 5 pages.
Search Report, mailed Aug. 31, 2006, for European Patent Application 06007363.2, 8 pages.
Office Action, mailed Feb. 21, 2008, for European Patent Application 06007363.2, 10 pages.
Office Action, mailed Aug. 11, 2004, for European Patent Application 98926433.8, 6 pages.
Office Action, mailed Feb. 1, 2010, for JP Patent Application 2009-224722, 5 pages.

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