Universal repeater for communication systems

A terrestrial radio frequency (RF) communication system, comprising:

• a far-end station at a fixed terrestrial location within a first cell receiving a signal having at least one first carrier frequency within a cellular frequency band, the far-end station including:
• a far-end converter converting the first carrier frequency to at least one first intermediate frequency, wherein the far-end converter does not change the modulation or signalling scheme of the signal having at least one first carrier frequency,
• a far-end channel selectivity circuit selecting one channel from the signal and converting the first intermediate frequency to a different second carrier frequency, wherein the second carrier frequency is a non-cellular frequency, and
• a far-end transmitter transmitting the selected channel having the different second carrier frequency;
• and
• a near-end station at a fixed terrestrial location within a second cell, wherein the second cell is located apart from the first cell, the near-end station including:
• a near-end receiver receiving the selected channel having the different second carrier frequency from the far-end transmitter,
• a near-end converter converting the different second carrier frequency to a second intermediate frequency, wherein the near-end converter does not change the modulation or signalling scheme of the selected channel having the different second carrier frequency, and
• a near-end channel selectivity circuit selectively filtering the received channel and converting the second intermediate frequency to the first carrier frequency;
• wherein the first carrier frequency is in the PCS band, and the different second carrier frequency is in the ISM band.

A method of communicating a radio frequency (RF) signal in a terrestrial system, the method comprising:

• receiving, at a first fixed terrestrial location within a first cell, a signal having at least one first carrier frequency within a cellular frequency band from a wireless cellular communication system;
• converting the first carrier frequency to at least one first intermediate frequency without changing the modulation or signalling scheme of the signal having the first carrier frequency;
• selecting one channel from the signal;
• converting the first intermediate frequency to at least one second carrier frequency, wherein the second carrier frequency is a non-cellular frequency;
• wirelessly transmitting the selected channel having the second carrier frequency;
• wirelessly receiving, at a second fixed terrestrial location within a second cell located apart from the first cell, the selected channel having the second carrier frequency;
• converting the second carrier frequency to a second intermediate frequency;
• filtering the received channel;
• converting the second intermediate frequency to the first carrier frequency;
• and
• communicating the received channel having the first carrier frequency to a distant station.

A method of converting carrier frequencies of a radio frequency (RF) signal in a terrestrial system, the method comprising:

• receiving at a first fixed terrestrial location within a first cell, a signal having at least one first carrier frequency within a cellular frequency band;
• converting the first carrier frequency to at least one first intermediate frequency without changing the modulation or signalling scheme of the signal having the first carrier frequency;
• selecting one channel from the signal;
• converting the first intermediate frequency to at least one second carrier frequency, wherein the second carrier frequency is a non-cellular frequency;
• wirelessly transmitting the selected channel having the second carrier frequency;
• wirelessly receiving, at a second terrestrial location within a second cell located apart from the first cell, the selected channel having the second carrier frequency;
• converting the second carrier frequency to a second intermediate frequency;
• filtering the received selected channel;
• converting the second intermediate frequency to the first carrier frequency;
• and
• communicating the received selected channel having the first carrier frequency to a wireless cellular communication system.

A terrestrial radio frequency (RF) communication system, comprising:

• a near-end station receiving a signal having at least one original carrier frequency in a cellular frequency band, the near-end station including:
• a near-end converter converting the original carrier frequency to at least one first intermediate frequency,
• a near-end filtering circuit capable of narrow band filtering the signal having the first intermediate frequency and converting the first intermediate frequency to at least one different higher carrier frequency in a non-cellular frequency band, and
• a near-end transmitter transmitting the signal having the different higher carrier frequency, wherein the near-end station does not change the modulation or signaling scheme of the signal having at least one first carrier frequency;
• a far-end station including:
• a far-end converter converting the different higher carrier frequency to the original carrier frequency and wherein the far-end converter does not change the modulation or signalling scheme of the signal having the original carrier frequency, and
• a far-end transceiver receiving the signal having the different higher carrier frequency from the near-end transmitter, and transmitting the signal having the original lower carrier frequency.