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Multiple access communication

  • US 9,125,083 B2
  • Filed: 02/16/2012
  • Issued: 09/01/2015
  • Est. Priority Date: 02/18/2011
  • Status: Active Grant
First Claim
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1. A method of operating a communications node in a carrier sense multiple access communications system with collision avoidance the method comprising:

  • the node measuring properties of a communications channel indicative of noise on the channel,if noise is detected above a predetermined threshold, the node implementing a channel management process to attempt to reduce the noise level, andonly if the channel management process is successful in reducing the noise level below a predetermined threshold, when the node has a queue of data to transmit, the node measuring the time that it takes to gain access to a channel for transmission of the data, and deriving therefrom a measure of availability of capacity in the network, and operating a data management process to reduce the number of bits in the transmission to a level where collisions are minimised.

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