Maintaining a data connection during a dormant data session with a wireless communication network

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 control...

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Main Authors ZAWAIDEH FAHED, RAMAMURTHY VENUGOPAL, MUDIGONDA RAVISHANKER, CHAN FLORA, NOOKALA SRIRAM NAGESH, KHAN NIAMUL, CHILLA RAJASHEKAR
Format Patent
LanguageEnglish
Published 18.10.2011
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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Summary: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.
Bibliography:Application Number: US20050229198