Maintaining a data connection during a dormant data session...

Details Maintaining a data connection during a dormant data session... Maintaining a data connection during a dormant data session...

2005-09-15

2011-10-18

Bost, Dwayne (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C455S403000

Reexamination Certificate

active

08040849

ABSTRACT:
A wireless device establishes a data session with a data call, and a data connection is set up for the data session. The wireless device may receive or originate a voice call while the data session is dormant, exchange traffic data for the voice call, and perform handoff between base station controllers (BSCs), if needed, during the voice call. Upon termination of the voice call, the wireless device determines whether it has moved to a new packet zone during the voice call. This may be the case if the wireless device was handed off between BSCs located in different packet zones. If the wireless device has moved to a new packet zone, then the data connection is updated, e.g., by sending to the current serving BSC an origination message indicating no data to send. The network entities perform appropriate actions to update the data connection for the wireless device.

REFERENCES:
patent: 6934272 (2005-08-01), Cheng et al.
patent: 2002/0048266 (2002-04-01), Choi et al.
patent: 2002/0055364 (2002-05-01), Wang et al.
patent: 2004/0063431 (2004-04-01), Julka et al.
patent: 2004/0071112 (2004-04-01), Hsu et al.
patent: 2004/0203780 (2004-10-01), Julka et al.
patent: WO 2004064292 (2004-07-01), None

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