Cell selection in mobile communications

Details Cell selection in mobile communications Cell selection in mobile communications

2011-03-22

2011-03-22

Anderson, Matthew D (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S434000, C455S444000, C455S436000, C455S437000, C455S438000, C370S331000, C370S332000, C370S335000

Reexamination Certificate

active

07912494

ABSTRACT:
Mobile user equipment for use in a cellular communications environment performs an improved cell selection on transitions out of a connected mode state. The transitions might be from one connected mode state to another or from a connected mode state to idle mode. The improvement in cell selection lies in assembling the list of candidate cells prior to cell selection. In the prior art, the list of candidate cells would usually be restricted to the serving cell or active cells supporting communication between the equipment and the network prior to transition. In embodiments of the invention, the list might comprise cells which are not the serving cell or which are outside the active set, for example a network-preferred cell or cells neighbouring the serving cell or cells of the active set.

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3GPP, Procedures in Idle Mode and Procedures for Cell Reselection in Connected Mode (Release 4), Jun. 2002, http://www.arib.or.jp/IMT-2000/V310Sep02/T63/Rel4/25/A25304-450.pdf.

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