Qualcomm Incorporated

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Manjunath Anandarama Krishnam

Ehab Tahir

Stanley Joseph Kostoff, Ii

William E Earnshaw

Arun Avudainayagam

Michael B Ryan

Maulik Bhatt

A network device may be configured to iteratively modify an initial tone map for each communication region of a powerline cycle to minimize the time before application data can be transmitted. A first network device estimates an initial tone map for each communication region based, at least in part, on sounding messages received from a second network device. The first network device determines whether to estimate a modified tone map for the first communication region based on at least one performance measurement associated with a data packet generated using the initial tone map for the first communication region. If so, the second network device retransmits the sounding messages in the first communication region that will be used to modify the initial tone map for the first communication region, and the second network device continues to transmit the data packets using the initial tone maps in the remaining communication regions.

Estimating tone maps in a communication network

Communicating between stations over a shared medium includes: monitoring the shared medium for signals received at a first station that is identified with a local network; storing information at the first station that represents characteristics of the signals received at the first station associated with capacity of the shared medium; monitoring the shared medium for signals received at a second station that is identified with the same local network as the first station; storing information at the second station that represents characteristics of the signals received at the second station associated with capacity of the shared medium; and determining whether a stream of data is allowed to be transmitted over the shared medium between the first station and the second station based on at least one of the stored information from the first station and the stored information from the second station.

Managing communications over a shared medium

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