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Session setup in an energy-efficient cellular wireless telecommunications system

  • US 9,936,445 B2
  • Filed: 12/16/2015
  • Issued: 04/03/2018
  • Est. Priority Date: 09/13/2011
  • Status: Active Grant
First Claim
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1. In a telecommunications system comprising a decision unit, an LA-cell base station, and a plurality of SA-cell base stations, a method for a terminal to facilitate establishment of a data connection between the terminal and at least one of the plurality of the SA-cell base stations, while at least one of the plurality of the SA-cell base stations is in power saving mode, the LA-cell base station optimized to exchange signaling messages with the terminal and the SA-cell base stations each optimized to exchange user data with the terminal, the method comprising:

  • while the terminal is in an idle mode and is camping on the LA-cell base station, the terminal determining properties of a signal received from each of one or more SA-cell base stations of the plurality of SA-cell base stations, the properties being indicative of propagation conditions between each of the one or more SA-cell base stations and the terminal;

    while the terminal is in the idle mode and is camping on the LA-cell base station, the terminal providing a report to the decision unit, via the LA-cell base station, the report comprising at least information indicative of at least a portion of the determined properties for at least one of the one or more SA-cell base stations;

    while the terminal is in an idle mode and is camping on the LA-cell base station, the terminal receiving an indication that the data connection is to be established between the terminal and a selected SA-cell base station of the plurality of SA-cell base stations, wherein the selected SA-cell base station is selected by the decision unit at least partially based on the report.

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