Patent ID: 8437314
Filing Date: 2013-05-07
Classification: H04B,H04W

Abstract:
1. A coordinated pair of circuits in a Consumer Premise Equipment (CPE) in a Wireless Regional Area Network (WRAN) comprising an out-of-band sensing circuit, and a transmitting and receiving circuit, wherein the out-of-band sensing circuit comprises: an omnidirectional sensing antenna; a first tunable pre-selective filter coupled to the omnidirectional sensing antenna; a first low noise amplifier coupled to the first tunable pre-selective filter; a first mixer coupled to the low noise amplifier; a first tunable local oscillator coupled to the first mixer; a first channel filter coupled to the first mixer; a first WRAN synchronization demodulator module coupled to the first channel filter; and a sensing scheme module coupled to the first channel filter, wherein the first tunable pre-selective filter and the first tunable local oscillator receive a first common tuning signal, and wherein the first WRAN synchronization demodulator module is configured to ignore in-band signals but detect other, out-of-band, WRAN signals, either from other WRAN base stations, television channels, or from other Consumer Premise Equipment; wherein the transmitting and receiving circuit comprises: a directional antenna operable both as a transmitter and a receiver; a radio frequency (RF) switch coupled to the directional antenna; an in-band demodulation circuit coupled to the RF switch; an in-band modulation circuit coupled to the RF switch; and wherein the out-of-band sensing circuit can operate at the same time that normal transmission and reception occurs on the transmitting and receiving circuit between the CPE and the base station to which the CPE is subscribed.