Session setup in an energy-efficient cellular wireless telecommunications system

• US 10,470,110 B2
• Filed: 03/02/2018
• Issued: 11/05/2019
• Est. Priority Date: 09/13/2011
• Status: Active Grant

• Current Assignee: Koninklijke KPN NV, Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno
• Original Assignee: Koninklijke KPN NV
• Inventors: Jorguseski, Ljupco, Pais, Adrian Victor, Zhang, Haibin, Oostveen, Job Cornelis, Van der Wal, Jacob Cornelis
• Primary Examiner(s): Lett, Thomas J
• Application Number:
  US15/910,966
• Publication Number:
  US 20180192360A1
• Time in Patent Office: 613 Days
• Field of Search: 455434
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 52/0206 in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: Y02D 30/70 in wireless communication networks

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.

Claims

1. In a telecommunications system comprising at least a decision unit, an LA-cell, and a plurality of SA-cells, a method for a terminal to facilitate establishment of a data connection between the terminal and at least one of the plurality of SA-cells, the method comprising:

while the terminal is in an idle mode and is camping on the LA-cell, the terminal transmitting an information request message (IRM) for the plurality of SA-cells;

receiving an indication that the data connection is to be established between the terminal and a selected SA-cell of the plurality of SA-cells,

wherein the selected SA-cell is selected by the decision unit based, at least partially, on messages received from each SA-cell of one or more SA-cells of the plurality of SA-cells, the messages comprising at least information indicative of a strength with which the each SA-cell received the IRM.

2. The method according to claim 1, wherein the IRM is transmitted in a manner that enables at least one or more of the plurality of SA-cells that received the IRM to determine properties of the received IRM that enable the decision unit to identify the IRM and/or the terminal.

3. The method according to claim 1, wherein the IRM comprises a request for establishing the data connection between the terminal and one of the plurality of SA-cells and, optionally, further comprises an indication of a service requested by the terminal and/or an indication of terminal'"'"'s capabilities.

4. The method according to claim 1, wherein the IRM is transmitted more than once.

5. The method according to claim 1, wherein the IRM is transmitted:

upon receiving an indication that the data connection between the terminal and one of the plurality of SA-cells is to be established, and/or

in a predetermined pattern.

6. The method according to claim 1, wherein the IRM is transmitted upon receiving a paging signal from the LA-cell.

7. A terminal comprising means for performing the steps of claim 1.