US Patent No. 10,560,914

TRACKING AREA AND USER PLANE MAPPING FOR CONTROL PLANE/USER PLANE SPLIT


Patent No. 10,560,914
Issue Date February 11, 2020
Title Tracking Area And User Plane Mapping For Control Plane/user Plane Split
Inventorship
Assignee Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)

Claim of US Patent No. 10,560,914

1. A cellular communications system having an architecture in which Serving Gateway (SGW) user plane functionality is separated from SGW control plane functionality, the cellular communications system comprising:a Serving Gateway Control plane entity (SGW-C) partitioned into a plurality of virtual SGW-Cs that correspond to a respective plurality of SGW User Plane (SGW-UP) service areas; and
a plurality of SGW-UP pools each comprising one or more SGW User entities (SGW-Us) wherein each SGW-UP pool serves a respective one of the plurality of SGW-UP service areas.