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MULTIPLE ACCESS COMMUNICATION

  • US 20130308451A1
  • Filed: 02/16/2012
  • Published: 11/21/2013
  • Est. Priority Date: 02/18/2011
  • Status: Active Grant
First Claim
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1. A method of operating a communications node (3) in a carrier sense multiple access communications system with collision avoidance (CSMA/CA), in which, the node measures properties of a communications channel indicative of noise on the channel (36),and if noise is detected above a predetermined threshold, the node implements a channel management process (37) to attempt to reduce the noise level,and, only if the channel management techniques (37) are successful in reducing the noise level below a redetermined threshold, when the node has a queue of data to transmit, the node measures the time that it takes to gain access to a channel for transmission of the data (38), and derives therefrom a measure of availability of capacity in the network, and operates a data management process (39) to reduce the number of bits in the transmission to a level where collisions are minimised.

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