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Broadcast-information-delivering-system

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Broadcast information delivering system

Details

Inventors: Tanaka, Satoshi; Amada, Eiichi; Mizutani, Seiki;
Assignee: Hitachi, Ltd. (Tokyo, JP)
Primary Examiner: Trost; William G.
Assistant Examiner: Tran; Congvan
Attorney, Agent or Firm: Antonelli, Terry, Stout & Kraus, LLP

A broadcast information delivering system which includes a plurality of wireless terminals and a wireless base station having a transmitter for transmitting broadcast control information to a control channel, and a transmitter for transmitting a broadcast frame to a broadcast channel in accordance with a transmission condition defined in the broadcast control information. The broadcast frame includes a plurality of sub-frames containing different contents information to each other and a frame header including guidance information of the contents information. Each of the wireless terminals includes a receiver for receiving the control information from the control channel, and a receiver for receiving the broadcast frame from the broadcast channel based on the broadcast control information and selectively receiving the contents information in a specific one of said sub-frames in accordance with the guidance information of the broadcast frame.

DETAILED DESCRIPTION An object of the invention is to provide a broadcast information delivering system and a wireless communication system that can provide information requested by a user inexpensively with a simple procedure.
Another object of the invention is to provide a broadcast information delivering system and a wireless communication system that can effectively deliver information requested by a user at a mobile station operated by a battery with the least exhaustion of the battery.
Another object of the invention is to provide a broadcast information delivering system and a wireless communication system that a terminal user can refer to desired information at a timing convenient to the user.
Another object of the invention is to provide a broadcast information delivering system and a wireless communication system that is well adapted for charge for charged information.
Another object of the invention is to provide a wireless base station that can effectively deliver information to a plurality of user terminals, and a wireless terminal apparatus that can effectively receive information desired by a user.
In order to accomplish the foregoing objects, the broadcast information delivering system of this invention employs a wireless base station that communicates system control information through at least one control channel and user information through a traffic channel allocated to each of the wireless terminals, with a plurality of wireless terminals.
The wireless base station employed in this invention is characterized by comprising: a control channel transmitter circuit for transmitting to the control channel the system control information, and broadcast control information that defines a transmission condition concerning a broadcast frame; and a broadcast channel transmitter circuit for transmitting the broadcast frame containing broadcast information to be received by unspecified wireless terminals to a specific channel defined by the broadcast control information, in accordance with the transmission condition

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