Method and apparatus to restore always-on connectivity...

Details Method and apparatus to restore always-on connectivity... Method and apparatus to restore always-on connectivity...

2006-03-17

2011-12-13

Pérez-Gutiérrez, Rafael (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C370S329000, C370S330000, C370S331000, C370S332000, C370S333000, C370S352000, C370S353000, C370S354000, C370S355000, C370S356000, C370S254000, C445S060000, C445S060000, C445S060000, C445S060000, C445S060000, C445S060000, C445S060000, C445S060000, C445S060000, C445S060000, C445S060000

Reexamination Certificate

active

08078178

ABSTRACT:
A method and apparatus to restore always on connectivity to user equipment, the method having the steps of: monitoring whether the user equipment has transitioned to a network that supports concurrent voice and data; performing, upon the monitoring step detecting the transition, a routing area update; checking whether the user equipment was in a voice call at the time of the transition, and if yes, sending a data packet to the network.

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“3rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 (release 7)” 3GPP TS 24.008 V7.2.0, Dec. 2005, pp. 94-140, XP002399927.

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