Nec Corporation

Milena Filipovic

Hiroaki Kuwano

Vivek Sharma

Francesca Serravalle

Neeraj Gupta

Suresh Ganapathy

A home base station via which a plurality of mobile communication devices are connectable in a communication network, the home base station having an associated closed subscriber group (CSG) and including a unit for receiving a connection request from a mobile communication device wherein the connection request includes an indication of whether the mobile communication device is a member of the CSG associated with the home base station, a unit for monitoring congestion levels for the home base station and for indicating when the home base station is in a congested situation, a unit for determining if the mobile communication device requesting connection is the member of the CSG associated with the home base station from the indication of whether the mobile communication device is the member of the CSG associated with the home base station, and a unit for controlling access to the home base station.

Communication system

A communication system is described in which mobile telephones are able to roam between neighbouring home node base stations. Techniques are described for allocating U-RNTIs to mobile telephones by the home base stations or the home base station gateway. Techniques are also disclosed for target home base stations to be able to retrieve information needed to respond to a Cell Update request received from a mobile telephone.

A communication system is described in which mobile telephones are able to roam between neighboring home node base stations. Techniques are described for allocating U-RNTIs to mobile telephones by the home base stations or the home base station gateway. Techniques are also disclosed for target home base stations to be able to retrieve information needed to respond to a Cell Update request received from a mobile telephone.

A Home NodeB (HNB) is provided that can be triggered to dynamically change its operating radio parameters, such as its transmission frequency or its primary scrambling code without having to be rebooted and which communicates the changed operating parameters to the mobile user devices served thereby. In this way a seamless changeover of the operating parameters can be provided that is transparent to users. The HNB may be triggered to change operating parameters by the mobile operating network or by an internal procedure.

A communication system is described in which a home base station operating in a hybrid access mode is able to provide preferential connectivity to mobile communication devices that are members of a closed subscriber group associated with the home base station compared to mobile communication devices that are not members of the closed subscriber group.

A user communications device, such as a mobile telephone, obtains and reports capability information to a serving base station. The capability information identifies if a neighboring UTRAN base station is HSPA/EDCH capable. The serving E-UTRAN base station can use this information to control handover decisions and load balancing performed thereby.

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London, United Kingdom

Milena Filipovic