Nec Corporation

Nec C Orporation

Suresh Ganapathy

Neeraj Gupta

Robert Arnott

Jagdeep Singh Ahluwalia

Kenji Kawaguchi

Vivek Jha

Hiroaki Kuwano

Milena Filipovic

A communication system is described in which mobile telephones are able to roam between neighboring home node base stations and in which the home base stations or the home base station gateway devices are arranged to aggregate 'Unsuccessfully Transmitted DL Data Volume' determined by previous home base stations served by the gateway device. In this way, when a call is transferred away from the gateway device or is released, a total aggregated value of 'Unsuccessfully Transmitted DL Data Volume' can be provided to the core network for billing purposes.

Communication system

A communication apparatus which communicates with a base station, the communication apparatus includes a receiving circuit configured to receive a message from the base station, wherein the message includes at least information identifying if the base station is a hybrid access mode base station; and a transmission circuit configured to transmit a parameter which identifies a user equipment to the base station when the base station is the hybrid access mode base station.

Communications 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 in which at least one of the first and second base station modules of a dual mode access point is configured to provide information, as regards to its operating mode, to the other base station module. In one embodiment, the operating mode information is provided via an internal interface coupling the first and second base station modules.

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 base station of a communications network includes a transceiver circuit configured to transmit signals in a first Radio Access Node (RAN) and signals in a second RAN, and a controller configured to determine if signals in the second RAN should be stopped based on a load of the first RAN.

A communication system in which an availability of communication resources to be used by a first base station module and a second base station module of a communications apparatus is managed. In one embodiment, the communication resources are shared between first and second base station modules such that communication resources that are not being used by the first base station module are available to be used by the second base station module and vice versa.

A communication system in which a transferring unit are configured for transferring at least one information element from a first base station to a second base station. In one embodiment, the information element is sent internally to a communication apparatus including the first and second base stations or externally via a communication node external to the apparatus. In one embodiment, the information element is sent between the two base stations via a communication node of a communication network.

A home base station registration request message includes data identifying whether or not the home base station comprises an open access mode or a closed access mode home base station.

A communication system includes a communication network including a plurality of communication cells, a plurality of mobile communication devices each operable to connect into the communication network via at least one of the communication cells, and a communication apparatus for providing at least one of the communication cells. The communication apparatus includes first and second base station functions each operable to acquire a congestion status and access control information for the other base station.

A communication system is described in which a base station operating in a hybrid or closed access mode requests deletion of the copy of the CSG-Id list maintained at the corresponding mobility management entity in the core network, when the base station changes its operation mode to an open (non-CSG) access mode.

Growing community of inventors

Tokyo, Japan

Suresh Ganapathy