Nec Corporation

Robert Paterson

Toshiyuki Tamura

Sadafuku Hayashi

Neeraj Gupta

Satoshi Noma

Robert Tietz

Sivapathalingham Sivavakeesar

Francesca Serravalle

A communication system is disclosed in which am anchor base station receives, from a core network node, downlink data for a communication device. The base station attempts (e.g. by RAN-based paging) to initiate communication with the communication device, and when the communication device does not respond to the attempt to initiate communication, the base station sends a message to the core network node, the message requesting initiation of a paging procedure for the communication device (e.g. S1-based paging).

Managing connection states for communications devices

There is presented a method performed by a central unit of a distributed base station apparatus in a cellular communication system, as part of a change of a UE context from a source distributed unit to a target distributed unit. A first message is sent to the target distributed unit of the distributed base station apparatus. A second message is received, from the target distributed unit of the distributed base station apparatus. The second message includes configuration information for the target distributed unit which may be full or delta. A third message is sent to a further base station apparatus that contains the received configuration information for the target distributed unit and an indication of whether a full or a delta type of configuration, has been used.

Communication system

Growing community of inventors

Tokyo, Japan

Robert Paterson