Off-load-cellular system for off-loading cellular service from a main cellular system to increase cellular service capacity

A microcellular system for controlling cellular service between a macrocellular system and the microcellular system and for providing microcellular service to a mobile telephone, the macrocellular system providing cellular service in at least one macrocellular service area and the microcellular system providing microcellular service in a microcellular service area that is smaller than and within the at least one macrocellular service area, the microcellular system comprising:

• a receiver circuit for monitoring the microcellular service area and receiving an origination message broadcast from the mobile telephone located in the microcellular service area, the receiver circuit having an output for outputting the received origination message;
• a system controller for receiving the origination message output from the receiver circuit and for outputting a connect signal indicating whether the microcellular service is to be provided to the mobile telephone responsive to the origination message;
• and
• a connection controller for receiving the connect signal output from the system controller for transmitting to the mobile telephone a voice connect message indicating a frequency to obtain the microcellular service responsive to the connect signal, and for connecting the mobile telephone with a calling party when the system controller indicates that microcellular service is to be provided to the mobile telephone.

A microcellular system for controlling cellular service between a macrocellular system and the microcellular system, and for providing microcellular service to a mobile telephone, the macrocellular system providing cellular service in at least one macrocellular service area and the microcellular system providing microcellular service in a microcellular service area that is smaller than and within the at least one macrocellular service area, the microcellular system comprising:

• a receiver circuit for monitoring the microcellular service area and receiving an origination message broadcast from the mobile telephone located in the microcellular service area, the receiver circuit having an output for outputting the received origination message;
• a system controller for receiving the origination message output from the receiver circuit, and for outputting a connect signal indicating whether the microcellular service is to be provided to the mobile telephone responsive to the origination message;
• a connection controller for receiving the connect signal output from the system controller, for transmitting to the mobile telephone a voice connect message indicating a frequency to obtain the microcellular service responsive to the connect signal, and for connecting the mobile telephone with a calling party when the system controller indicates that microcellular service is to be provided to the mobile telephone;
• a monitor circuit for monitoring and receiving a page signal broadcast from the macrocellular system, the monitor circuit having an output for outputting the received page signal;
• and
• a rebroadcast circuit for receiving the page signal output from the monitor circuit, and for rebroadcasting the page signal as a rebroadcasted signal, enabling the mobile telephone located in the microcellular service area of the microcellular system to receive the page signal from the macrocellular system.