US 7,031,283 B2 · Method and system for enhancing channel capacity in a point to multipoint radio communications system having different kinds of terminals

Abstract

Method and system for enhancing channel capacity in a Point-to Multipoint radio communications system that includes terminal stations (12) of different kinds, such as residential terminals and business terminals, with different link budget requirements i.e. different signal-to-noise ratio. The method is characterized by the selective use of different channel coding codes such as forward error correction (FEC) codes, in the different concurrent channels, depending on a pre-defined category of an addressed subscriber. The multiplexing method used may be CDMA (Code Division Multiple Access) and TDMA (Time Division Multiple Access). Each terminal station (12) is in turn equipped only with an appropriate decoder, depending on its kind, e.g. residential or business.

Claims9

Dependent claims

Method for enhancing channel capacity in a point to multipoint radio communications system comprising at least a base station (11;

21) and a plurality of terminal stations (12) where said terminal stations present different requirements in relation to applications of radio digital channels, characterized in that the method comprises the steps of:
determining a radio resource consumption factor of a terminal station (12;
26;
28) according to said application requirements;
selecting a forward error correction code for coding a channel to be transmitted to a terminal station (12;
26;
28), said code being selected so as to optimize said radio resource consumption factor of said terminal station (12;
26;
28);
using said forward error correction code for coding said channel;
and
multiplexing concurrent channels having different forward error correction codings for transmission thereof.

9 more elements

Dependencies are inferred from the claim text.

Method and system for enhancing channel capacity in a point to multipoint radio communications system having different kinds of terminals

Life of this patent

Method and system for enhancing channel capacity in a point to multipoint radio communications system having different kinds of terminals

Life of this patent

Abstract

Claims9