The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2005
Filed:
Dec. 20, 1999
Xiaode Xu, Fremont, CA (US);
Sheausong Yang, Saratoga, CA (US);
Bhavannarayana Sri Nrusimha Nelakanti, San Jose, CA (US);
Ian Sayers, Redwood City, CA (US);
Wenfeng Huang, Cupertino, CA (US);
Xiaode Xu, Fremont, CA (US);
Sheausong Yang, Saratoga, CA (US);
Bhavannarayana Sri Nrusimha Nelakanti, San Jose, CA (US);
Ian Sayers, Redwood City, CA (US);
Wenfeng Huang, Cupertino, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A technique for implementing a flattened Layerstack 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-Lhandles 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 Layeror can be implemented as part of the message passing part of the Layerrunning body so that the Layermessages 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.