Echo profile probe

Details Echo profile probe Echo profile probe

2011-08-09

2011-08-09

Mattis, Jason E (Department: 2461)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Particular set of orthogonal functions

C370S252000, C370S260000

Reexamination Certificate

active

07995459

ABSTRACT:
In an orthogonal frequency division multiplex (OFDM) communication network, a node transmits an echo profile probe to other nodes in the network. The echo profile probe is a message that allows characterization of the unique echo profile through the communication channel between each node pair. The echo profile is used to calculate the cyclic prefix length needed for optimum communication from one node to the other.

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patent: 2003/0012308 (2003-01-01), Sampath et al.
patent: 2004/0081191 (2004-04-01), Kwon et al.

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