Hitachi, Ltd.

Katsuyuki Tsunami

Hideki Okita

Yuki Sugimoto

Ken Nanjo

Yoshinao Kiuchi

A base station congestion management includes at least one data management unit to which a plurality of communication monitoring apparatuses input the base station bandwidth information and the subscriber information, a shared data store to store base station bandwidth usage information and information of list of subscriber existing within base station coverage, and a congestion management unit to determine whether congestion is occurring at the base station. The data management unit calculates a total value of a used bandwidth for each base station, updates the base station bandwidth usage information, and updates the list of subscriber identification information of a user terminal connected with the base station. The congestion management unit identifies the subscriber identification information of the user terminal connected with the base station where congestion is occurring.

Base station congestion management system, and base station congestion management method

Various kinds of presentation information specific to an area in a radio-communication system can be transmitted to a one or more specific radio-communication terminals at the same time. A user is able to receive commercial information, for example, from an information provider as presentation information when a user enters a location-registration area. A user terminal transmits a request for a location registration and the location-registration area and a terminal ID are transmitted to the information providing apparatus, which searches a database for a subscriber ID by using the terminal ID as a key and further searches a database for presentation-information ID by using the subscriber ID and the location-registration area information as a pair of keys. The presentation information is then transmitted to the terminal through a USCCH channel and displayed on a display unit of the terminal.

Growing community of inventors

Tokyo, Japan

Katsuyuki Tsunami