Method and protocol to adapt each unique connection in a multi-node network to a maximum data rate
First Claim
Patent Images
1. In a network of stations, a method of operating a station comprises:
- transmitting data across a plurality of different connections between any of a plurality of transmitters and any of a plurality of receivers;
using a plurality of carriers to transmit data between a transmitter and a receiver;
maintaining, for a connection over a channel between a transmitter in the station and a receiver in another station, a channel map provided by the receiver based on characteristics of the channel for the connection and having an associated channel map index;
having the transmitter use the channel map to encode and modulate frame data in a data frame for transmission over the channel to the receiver, wherein the channel map provides for the encoding and modulating for at least some carriers for at least one pair to be different from that used for the same carriers for at least one other pair andhaving the transmitter send the associated channel map index in the data frame to identify to the receiver the channel map used by the transmitter for encoding and modulating frame data in the data frame.
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Abstract
A rate-adaptive mechanism for optimizing transmitter/receiver connections on a carrier-by-carrier basis for maximum date rate based on channel attributes for that connection and direction. Channel information is produced by a channel adaptation process based on channel characteristics and is stored in both transmitter and receiver as a channel map with an associated a channel map index for channel map look-up. The channel map index for a channel map used to modulate a payload of a frame is conveyed by transmitter to receiver in the frame so that the receiver is able to select the correct channel map for demodulation.
221 Citations
13 Claims
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1. In a network of stations, a method of operating a station comprises:
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transmitting data across a plurality of different connections between any of a plurality of transmitters and any of a plurality of receivers; using a plurality of carriers to transmit data between a transmitter and a receiver; maintaining, for a connection over a channel between a transmitter in the station and a receiver in another station, a channel map provided by the receiver based on characteristics of the channel for the connection and having an associated channel map index; having the transmitter use the channel map to encode and modulate frame data in a data frame for transmission over the channel to the receiver, wherein the channel map provides for the encoding and modulating for at least some carriers for at least one pair to be different from that used for the same carriers for at least one other pair and having the transmitter send the associated channel map index in the data frame to identify to the receiver the channel map used by the transmitter for encoding and modulating frame data in the data frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification