Patent ID: 8077685
Filing Date: 2011-12-13
Classification: H04W

Abstract:
1. A method for avoiding hanging Packet Data Protocol (PDP) contexts in a General Packet Radio Service (GPRS) network, the method comprising: including by a Serving GPRS Support Node (SGSN), a time-out period in a request message to create a PDP context; transmitting the request message from the SGSN to a Gateway GPRS Support Node (GGSN); receiving the request message in the GGSN; initiating creation of a PDP context by the GGSN in response to receiving the request message; determining by the GGSN whether creation of the PDP context is completed before the time-out period received in the request message expires; when creation of the PDP context is completed before the time-out period received in the request message expires, sending a first type of response message from the GGSN to the SGSN indicating the PDP context has been created and including identifying information for the PDP context; and when creation of the PDP context is not completed before the time-out period received in the request message expires: