POINT-TO-POINT, MILLIMETER WAVE, DUAL BAND FREE SPACE GIGABIT PER SECOND COMMUNICATION LINK
First Claim
1. A point-to-point dual band gigabit millimeter wave communications system comprising:
- A) a first millimeter wave transceiver system located at a first site capable of transmitting and receiving to and from a second site through atmosphere digital information at rates in excess of 1 billion bits per second during normal weather conditions, B) a second millimeter wave transceiver system located at said second site capable of transmitting and receiving digital information to and from said first site at rates in excess of 1 billion bits per second during normal weather condition, and C) a back-up transceiver system operating at a data transmittal rate of much less than 1 billion bits per second configured continue transmittal of information between said first and second sites in the event of abnormal weather conditions.
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Accused Products
Abstract
A point-to-point, wireless, millimeter wave communications link providing data transmission rates of over 1 billion bits per second (more than 1 Gbps) at ranges of several miles during normal weather conditions. In a preferred embodiment a communication link operates within the 92 to 95 GHz portion of the millimeter spectrum. A first transceiver transmits at a first bandwidth and receives at a second bandwidth both within the above spectral range. A second transceiver transmits at the second bandwidth and receives at the first bandwidth. The transceivers are equipped with antennas providing divergence of less than 10−4 steradians so that an almost unlimited number of transceivers can use the same spectrum. In a preferred embodiment the first and second spectral ranges are 92.3-93.2 GHz and 94.1-95.0 GHz. During very bad weather conditions this data link will not provide a 10−10 bit-error rate and 99.999% availability. Therefore, a second transceiver pair operating in the 3 to 30 GHz microwave range acts as a backup to achieve the above bit-error rate and availability requirements, but at a temporarily lower data rate.
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Citations
20 Claims
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1. A point-to-point dual band gigabit millimeter wave communications system comprising:
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A) a first millimeter wave transceiver system located at a first site capable of transmitting and receiving to and from a second site through atmosphere digital information at rates in excess of 1 billion bits per second during normal weather conditions, B) a second millimeter wave transceiver system located at said second site capable of transmitting and receiving digital information to and from said first site at rates in excess of 1 billion bits per second during normal weather condition, and C) a back-up transceiver system operating at a data transmittal rate of much less than 1 billion bits per second configured continue transmittal of information between said first and second sites in the event of abnormal weather conditions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification