Method and apparatus for superframe bit allocation

Details Method and apparatus for superframe bit allocation Method and apparatus for superframe bit allocation

1997-05-12

1999-12-28

Pham, Chi H.

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

370464, 375295, H04K 110, H04L 2728

Patent

active

060091223

ABSTRACT:
A method and apparatus for supporting multiple bit allocations in a multicarrier modulation system are disclosed. Hence, symbols being transmitted or received can make use of different bit allocations. By supporting the multiple bit allocations, the multicarrier modulation system is able to support bit allocation on a superframe basis. Also disclosed are techniques for selection and alignment of superframe formats to improve system performance.

REFERENCES:
patent: 5400322 (1995-03-01), Hunt et al.
patent: 5479447 (1993-05-01), Chow et al.
patent: 5596604 (1997-01-01), Cioffi et al.
patent: 5606577 (1997-02-01), Grube et al.
patent: 5673290 (1997-09-01), Cioffi
patent: 5680394 (1997-10-01), Bingham et al.
J.S.Chow et al., "Mixing Asymmetric with Symmetric Services in SDMT Systems," Standards Project T1E1.4:VDSL, T1E1.4/96-269, Sep. 4, 1996.
J.S. Chow, "Asymmetric Option for SDMT VDSL Systems," Standards Project T1E1.4:VDSL, T1E1.4/96-182, Jul. 22, 1996.
J. Cioffi, "SDMT Crosstalk Canceler (96-246)," Standards Project T1E1.4: VDSL, T1E1.4/96-246, Sep. 4, 1996.
J. Cioffi, "Add/Delete SDMT Solution for Unsynchronized VDSL Lines (96-247)," Standards Project T1E1.4:VDSL, T1E1.4/96-247, Sep. 4, 1996.
Fischer & Huber, "A New Algorithm for Discrete Multitone Transmission," IEEE, 1996.
P.S. Chow et al., "A Practical Discrete Multitone Transceiver Loading Algorithm for Data Transmission over Spectrally Shaped Channels," IEEE Transactions on Communications, vol. 43, Nos. 2/3/4, Feb., Mar., Apr. 1995.
ANSI T1.413 Standard for Telecommunications, Network and Customer Installation Interfaces--Asymmetric Digital Subscriber Line (ADSL) Metallic Interface, American National Standards Institute (ANSI), New York, 1995.

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