Hitachi, Ltd.

Tatsuya Maruyama

Noritaka Matsumoto

Yusaku Otsuka

Toshiki Shimizu

Hidenori Omiya

Iori Kobayashi

Shoji Yunoki

Taisuke Ueta

In example implementations described herein, there are an apparatus, systems, and methods for identifying a state of a plurality of synchronized devices at a particular time. The method may further include allocating, based on the identified state of each of the plurality of synchronized devices, a set of time-synchronization resources for transmitting time-synchronization information from at least one device in the plurality of devices. The method may also include transmitting a control message to the at least one device in the plurality of devices indicating the allocated set of time-synchronization resources determined for transmitting the time-synchronization information from the at least one device.

Resource control for system logging

A method, and apparatus for implementing the method, of resource allocation for a communication session in a network that connects a terminal device and a control device via one or more base stations is discussed herein. The method may include storing identifiers of a set of communication objects associated wide the terminal device. The method may further include acquiring information regarding a first set of resources associated with a first communication session for a first communication object in the set of communication objects. The method may also include allocating a second set of resources associated with a second communication session for a second communication object in the set of communication objects, where the second set of resources comprises a disjoint set of resources from the first set of resources.

Redundant communication system

Example implementations described herein are directed to a plurality of control functions connected via a communication network and synchronized, where the control functions communicate packets including control data, the function identifier for the function associated with the control data, and time identifier such as a time identifier representing the synchronized time associated with the control data. Example implementations determine control data associated with the function identifier and the time identifier from one or more packets that has the same function identifier and time identifier, received in the certain time period based on the time specified by the time identifier.

Redundant control system

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Santa Clara, CA, United States of America

Tatsuya Maruyama