Patent ID: 8880061
Filing Date: 2014-11-04
Classification: H04W

Abstract:
1. A wireless communications method, comprising: selecting, when roaming from a current access network (AN) supporting multiple concurrent packet data network (PDN) connections to a handover target AN not supporting multiple concurrent PDN connections, a single PDN connection, from among multiple active PDN connections, for operation in the handover target AN, wherein the current AN supporting multiple concurrent PDN connections allows multiple PDN connections to an access point name (APN) and the target AN not supporting multiple concurrent PDN connections allows only one PDN connection to the APN; and exchanging messages to register the single PDN connection in the handover target AN, wherein the selection of the single PDN connection is based on a set of rules related to an order in which the multiple active PDN connections were established, wherein the single PDN connection corresponds to a latest PDN connection or a PDN connection for a most valuable application, wherein if a new PDN connection to the APN is established and there is already a pre-registered PDN connection for the APN in the target AN, the pre-registered PDN connection is not considered the latest PDN connection.