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Method of avoiding non-desired interference between services by creating a truncated binomial tree which represent active or passive action elements

  • US 5,652,834 A
  • Filed: 06/10/1994
  • Issued: 07/29/1997
  • Est. Priority Date: 06/11/1993
  • Status: Expired due to Term
First Claim
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1. A method of avoiding undesirable interference between services in a telecommunications system that includes basic software for a basic service and supplemental software for services supplemental to the basic service, wherein the supplemental software is divided into action software which act only on the basic service and interaction software which acts on the remainder of the supplemental software, said method comprising the process steps ofdividing the basic service into processes;

  • andstarting a process with input signals which identify supplemental services or subfunctions of supplemental services, hereinafter referred to commonly as supplemental services, whose supplemental software shall be executed together with the basic software of the basic service in the process, whereina supplemental service is represented by action elements;

    nodes in a mathematical binomial tree are represented by combinations of action elements;

    those action element combinations which correspond to interference between supplemental services form one or a number of structures in the mathematical binomial tree, said structures being referred to as interference event trees;

    those supplemental services that are represented by action elements, which is indicated by the input signals to the specific process, are compared with nodes in the interference event trees belonging to the process with the intention of establishing possible agreement between current sets of action elements (the input combination) and sets of action elements which belong to nodes in the interference event trees for the process;

    only those nodes in the interference event trees whose sets of action elements are equivalent with the current set of action elements or a subset of the current subset of action elements are selected;

    those nodes in the interference event trees whose sets of action elements are subsets of the action elements of another selected node are not selected; and

    interaction software which resolves interferences corresponding to the node or nodes chosen in the interference event trees is added to the basic software that executes the process.

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