A broadband powerline communication system is disclosed which makes use of knowledge of the spectrum characteristics of a local radio environment in order to improve the performance of the system. A determination is made of the spectrum characteristics of a radio environment in the vicinity of the broadband powerline communication system that is transmitting data on modulated carrier frequencies. Certain ones of the carrier frequencies otherwise used by the broadband powerline communication system may be masked (i.e., not used) by all or part of the broadband powerline system in order to avoid interference based on the determination. In various embodiments, the spectrum characteristics are determined 1) in advance and used to compile a configuration database comprising frequency masking parameters; 2) by monitoring the local radio environment using the transmitter/receiver nodes of the system; or 3) based upon receipt of an indication from a conflicting user that the user is experiencing interference. Various combinations of these spectrum characteristic determination techniques may also be used.
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Inventors: Gerszberg; Irwin; (Kendall Park, NJ) ; Henry; Paul Shala; (Holmdel, NJ) ; Sutliff; Larrie; (Briarcliff Manor, NY)
Correspondence Name and Address: AT&T CORP.
ROOM 2A207
ONE AT&T WAY
BEDMINSTER
NJ
07921
US
Assignee Name and Adress: AT&T Corp.
Serial No.: 074221
Series Code: 11
Filed: March 7, 2005
BROADBAND over POWER LINES: new 200 Mbps Technology !!!
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