Patent ID: 6879568
Filing Date: 2005-04-12
Classification: H04W

Abstract:
1. A method for processing network layer messages within a wireless communication system, the network layer including within it certain functional layers, including a radio resource function, a mobility management function, and a connection management function with at least the radio resource function being normally a transport mechanism for the mobility management and connection management functions, the method comprising the steps of: examining a network layer message traveling in an uplink direction from a mobile station towards network subsystem components to determine, prior to routing it to any functional layer, whether it is associated with connection management, mobility management, or radio resource management; routing the message directly to the respective connection management, mobility management, or radio resource management functional layer, without passing the message through each of the functional layers; and processing downlink network layer messages traveling in a downlink direction from network subsystem components towards the mobile station in a direct manner such that the network layer messages do not pass through other layer protocol stacks, the downlink network layer messages that comprise connection management messages being first routed to the mobility management function.