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US 2009/0154581 A1Published application
Discrete Multitone(DMT) Communications without Using a Cyclic Prefix
OwnerMaxim B. Belotserkovskyinventor
Life of this patent
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Abstract
A Discrete Multitone (DMT) modulator modulates symbols with subcarriers for providing DMT symbols, wherein the subcarriers are divided into a number of subcarrier subsets such that adjacent DMT symbols formed from different subcarrier subsets
Claims30
Apparatus comprising:
- a discrete multi-lone (DMT) modulator for modulating symbols with subcarriers for transmitting DMT symbols;
- wherein the subcarriers are divided into a number of subcarrier subsets such that adjacent DMT symbols are formed from different subcarrier subsets.
Apparatus comprising:
- a discrete multi-tone (DMT) demodulator for demodulating received DMT symbols to provide recovered data;
- wherein for each received DMT symbol, the DMT demodulator uses a subcarrier subset for demodulating the received DMT symbol and wherein the DMT demodulator uses different subcarrier subsets for demodulating adjacent received DMT symbols.
A method for use in a transmitter comprising:
- receiving data for transmission;
- modulating the received data using a discrete multi-tone (DMT) based modulation to provide a sequence of DMT symbols for transmission;
- wherein DMT subcarriers are divided into a number of subcarrier subsets such that adjacent DMT symbols are formed from different subcarrier subsets.
A method for use in a receiver, the method comprising:
- receiving DMT symbols;
- demodulating each received DMT symbol to provide recovered data using a subcarrier subset, wherein different subcarrier subsets are used for demodulating adjacent received DMT symbols.
Dependencies are inferred from the claim text.