Session setup in an energy-efficient cellular wireless telecommunications system
First Claim
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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Accused Products
Abstract
The invention relates to a telecommunications system comprising at least a plurality of SA-cells. The invention provides a method for a terminal to facilitate establishment of a data connection between the terminal and at least one of the SA-cells. The method includes steps of, while the terminal is in an idle mode, the terminal transmitting an information request message (IRM) for the plurality of SA-cells and receiving, from each SA-cell of one or more SA-cells of the plurality of SA-cells, a message comprising at least information indicative of a strength with which the each SA-cell received the IRM. The method further includes the step of, at least partially based on the messages received from the one or more SA-cells, the terminal selecting an SA-cell of the plurality of SA-cells for establishing the data connection between the terminal and the selected SA-cell.
56 Citations
14 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A decision unit comprising a processor, the processor configured at least for:
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receiving from a terminal in idle mode camping on a LA-cell base station a report comprising at least information indicative of at least a portion of properties determined for at least one of a plurality of SA-cell base stations, 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, 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, and based at least partially on the report, selecting at least one SA-cell base station of the plurality of SA-cell base stations for establishing the data connection between the terminal and the selected SA-cell base station. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification