Access stratum manager

Details Access stratum manager Access stratum manager

2007-07-31

2007-07-31

Vo, Nguyen T. (Department: 2618)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C455S437000, C455S552100

Reexamination Certificate

active

10678796

ABSTRACT:
A multi-mode mobile communication device may include a processing device, a memory sub-system, a communication sub-system operable to communicate with the plurality of wireless access networks, and a protocol stack stored in the memory sub-system and executed by the processing device. The protocol stack may include a first access stratum, a second access stratum, a non-access stratum and an access stratum manager. The first access stratum may communicate with a first wireless access network via the communication sub-system. The second access stratum may communicate with a second wireless access network via the communication sub-system. The non-access stratum may communicate with a core network. The access stratum manager may interface the non-access stratum with the first and second access strata, and may be operable to activate the first access stratum to establish a communication link with the core network over the first wireless access network. The access stratum manager may be further operable to maintain the communication link between the non-access stratum and the core network while transferring the communication link from the first access stratum to the second access stratum.

REFERENCES:
patent: 6542516 (2003-04-01), Vialen et al.
patent: 6785535 (2004-08-01), Lucidarme et al.
patent: 2005/0239453 (2005-10-01), Vikberg et al.

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