Quick layer-3 message multiplexing

Details Quick layer-3 message multiplexing Quick layer-3 message multiplexing

2005-04-12

2005-04-12

Pham, Chi (Department: 2667)

Multiplex communications

Communication over free space

Repeater

C370S337000, C370S347000

Reexamination Certificate

active

06879568

ABSTRACT:
A technique for implementing a flattened Layer3stack model within a Global System for Mobile (GSM) communication system so that a centralized multiplex function associated with certain functions handles messages. The multiplex function dispatches radio resource (RR), mobility management (MM), or Connection Management (CM) function messages directly to the respective functional layers without first requiring such messages to pass through a stack. In the preferred arrangement, the multiplex function sub-L3handles only uplink messages, allowing downlink messages to travel through the sub-layer stack without employing any bridging entity. The multiplex function can run independently of any of the other functions in Layer3or can be implemented as part of the message passing part of the Layer2running body so that the Layer2messages are routed directly to a respective RR, MM, or CM function. The flattened protocol stack permits time-sensitive messages related to location update, handover, or cell reselection and other time-critical messages to be handled more efficiently.

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