Recovery of mobile station(s) in connected mode upon RNC...

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

Reexamination Certificate

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C455S435100

Reexamination Certificate

active

07076248

ABSTRACT:
An enhanced radio network controller (RNC) node of a radio access network stores context information for a user equipment unit which is in a Connected Mode, and initiates a cell update-prompting message which is transmitted the user equipment unit. The stored context information is used by the context-enhanced radio network controller (RNC) node for addressing the cell update-prompting message to the user equipment unit. After the user equipment unit (which is in its Connected Mode) performs the prompted cell update procedure, such user equipment unit (UE) can be paged with a conventional paging message. The invention with its context-enhanced radio network controller (RNC) node is particularly suitable to user equipment units which are in a critical state of the Connected Mode, such as (for example) either a CELL_PCH state or a URA_PCH state of the Connected Mode.

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U.S. Appl. No. 09/852,915, filed May 11, 2001 entitled “Releasing Plural Radio Connection with Omnibus Release Message”.
Tech. Spec., 3rdGeneration Partnership Project: Tech. Spec. Group Radio Access Network; “UE Procedures in Idle Mode and Procedures for Cell Reselection in Connected Mode (Release 1999)”, 3GPP TS 25.304, v3.6.0 (Mar. 2001).
3GPP TS 25.331, V3.6.0 (Mar. 2001), 3rdGeneration Partnership Project; Tech. Spec. Group Radio Access Network; RRC Protocol Specification (Release 1999).
International Search Report mailed Jan. 20, 2003 in corresponding PCT application No. PCT/SE02/01626.

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