Patent ID: 7512104
Filing Date: 2009-03-31
Classification: H04W

Abstract:
1. A method for preventing the occurrence of a hanging resource in connection with a Serving Radio Network Subsystem (SRNS) Relocation Procedure when a mobile terminal roams from a first Serving General Packet Radio Service (GPRS) Support Node (SGSN) with an associated source Radio Network Controller (RNC) to a second SGSN with an associated target RNC, said method comprising the steps of: if, during said SRNS Relocation Procedure, said first SGSN detects that the connection to the mobile terminal is broken subsequent to transmission of a Relocation Command to said source SGSN, initiating a release of a resource established during the SRNS Relocation Procedure in the second SGSN, the target RNC or any involved Gateway GPRS Support Node (GGSN).