US 2006/0223532 A1 · Method for user equipment mobility management and communication system

Abstract

The present invention relates to a method of UE mobility management and a mobile communication system of implementing this method, where the system includes: a core network communicating with the universal terrestrial radio access network (UTRAN) via the Iu interface; UTRAN consisting of multiple radio network systems (RNS) and communicating with one or more UE via the Uu interface, and each said RNS comprising a radio network controller (RNC) and one or more nodes communicating with said RNC via the Iub interface, while communication between RNC being performed via the Iur interface; UTRAN controlling UE mobility management through radio resource control (RRC) signalling of the Uu interface; and said method includes: UE transmitting uplink RRC signalling information to a first RNC to request UE mobility management; the first RNC receiving and forwarding said uplink RRC signalling information to the core network; the core network forwarding transparently said uplink RRC signalling information to a second RNC; and the second RNC receiving and utilizing said uplink RRC signalling information to perform the required mobility management.

Claims20

Dependent claims

A method for user equipments (UE) mobility management in a mobile communication system, wherein said mobile communication system comprises;

a core network, one or more universal terrestrial radio access networks (UTRAN) and a plurality of user equipments (UE), wherein the core network communicates with the UTRAN via an Iu interface;
said UTRAN consists of a plurality of radio network systems (RNS) and communicates with one or more UEs via a Uu interface, each said RNS comprising a radio network controller (RNC) and one or more nodes communicating with said RNC through an Iub interface, each node comprising one or more cells, and the communication between RNCs being performed via an Iur interface;
the UTRAN controls the UE mobility management through a radio resource control (RRC) signaling of the Uu interface;
said method comprising the steps of:
the UE transmitting uplink an RRC signaling message to a first RNC so as to request UE mobility management;
said first RNC receiving and forwarding to the core network said uplink RRC signaling message;
the core network forwarding transparently to a second RNC said uplink RRC signaling message;
and
the second RNC receiving and utilizing the forwarded uplink RRC signaling message to perform the requested mobility management.

6 more elements

A mobile communication system for user equipments (UEs) mobility management, wherein said mobile communication system comprises;

a core network, one or more universal terrestrial radio access networks (UTRANs) and a plurality of user equipments (UEs), wherein the core network communicates with the UTRAN via an Iu interface;
said UTRAN consists of a plurality of radio network systems (RNSs) and communicates with one or more UEs via a Uu interface, each said RNS comprising a radio network controller (RNC) and one or more nodes communicating with said RNC through an Iub interface, each node comprising one or more cells, and the communication between RNCs being performed via an Iur interface;
the UTRAN controls the UE mobility management through a radio resource control (RRC) signaling of the Uu interface;
and wherein:
the UE comprises means for transmitting uplink the RRC signaling message to a first RNC so as to request the UE mobility management;
said first RNC comprises means for receiving from said UE and forwarding to the core network said uplink RRC signaling message;
the core network comprises means for forwarding transparently to a second RNC said uplink RRC signaling message;
and
the second RNC comprises means for receiving and utilizing the forwarded uplink RRC signaling message to perform the requested mobility management.

6 more elements

Dependencies are inferred from the claim text.

Method for user equipment mobility management and communication system

Life of this patent

Method for user equipment mobility management and communication system

Life of this patent

Abstract

Claims20