Method for identifying base stations of a time division cellular network in a mobile station and mobile station

• US 7,126,966 B2
• Filed: 09/19/2002
• Issued: 10/24/2006
• Est. Priority Date: 06/18/1997
• Status: Expired due to Term

• Current Assignee: Conversant Wireless Licensing S.à.r.l. (f/k/a Core Wireless Licensing S.a.r.l.) (MOSAID Technologies Inc. (f/k/a Conversant Intellectual Property Management))
• Original Assignee: Nokia Mobile Phones UK Limited (Nokia Corporation)
• Inventors: Jokinen, Harri, Ranta, Pekka
• Primary Examiner(s): To, Doris H
• Assistant Examiner(s): Tran, Thien D.
• Application Number:
  US10/247,206
• Publication Number:
  US 20030026242A1
• Time in Patent Office: 1,496 Days
• Field of Search: None
• US Class Current: 370/509
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/20 Selecting an access point

Abstract

The invention relates to a method for identifying base stations of a time division cellular network in a mobile station. An object of the invention is to speed up the identification of new base stations. In accordance with the invention

• • frame timing difference data for the neighbor base stations (301) and/or the broadcast control channel time slot data for the neighbor base stations are transmitted from the serving base station to the mobile station;
  • reception times for the neighbor base stations'"'"' system data are determined in the mobile station on the basis of said frame timing differences and/or the broadcast control channel time slot data (302) and
  • system data are read and neighbor base stations are identified (303). The invention is also directed to a mobile station applying the method.

Claims

1. A mobile station comprising a control unit that includes means for identifying base stations of a time division cellular network, characterised in that said means comprises

means for identifying, reading and storing a frame timing difference list for the neighbour base stations coming from a base station;

and

means for determining reception times for the system data of a neighbour base station on the basis of the frame timing differences.

2. The mobile station of claim 1, further comprising a radio frequency receiver coupled to said means for identifying base stations.

3. The mobile station of claim 1 wherein said means for identifying, reading and storing a frame timing difference list and said means for determining reception times each comprise software units.