Method and apparatus for adaptively setting frequency channels in a multi-point wireless networking system
First Claim
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1. A method of establishing communications between a plurality of wireless devices including at least a first wireless device and a second wireless device, the method comprising the steps of:
- (a) scanning, by the first wireless device, a given frequency band for receiving a radio signal, comprising the steps of;
(a1) measuring noise at a plurality of frequencies within the given frequency band;
(a2) measuring signals at a plurality of frequencies within the given frequency band to determine whether any of the frequencies within the given frequency band is used by an existing communication link;
(a3) determining available frequency channels within the given frequency band based upon the steps of measuring the noise and measuring the signals;
(b) computing a spectral signature for the available frequency channels within the given frequency band;
(c) establishing far-end communication parameters for the second wireless device; and
(d) transmitting the far-end communication parameters to the second wireless device.
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Abstract
In a wireless network with point-to-point, multi-point or broadcast communications links, a method is provided for adaptively setting frequency channels for wireless devices within the network by dynamically exchanging time-varying spectral maps and communication parameters to utilize available frequency channels efficiently.
45 Citations
48 Claims
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1. A method of establishing communications between a plurality of wireless devices including at least a first wireless device and a second wireless device, the method comprising the steps of:
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(a) scanning, by the first wireless device, a given frequency band for receiving a radio signal, comprising the steps of;
(a1) measuring noise at a plurality of frequencies within the given frequency band;
(a2) measuring signals at a plurality of frequencies within the given frequency band to determine whether any of the frequencies within the given frequency band is used by an existing communication link;
(a3) determining available frequency channels within the given frequency band based upon the steps of measuring the noise and measuring the signals;
(b) computing a spectral signature for the available frequency channels within the given frequency band;
(c) establishing far-end communication parameters for the second wireless device; and
(d) transmitting the far-end communication parameters to the second wireless device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of establishing communications between a plurality of wireless devices including at least a first wireless device and a second wireless device, the method comprising the steps of:
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(a) scanning, by the first wireless device, a given frequency band for receiving a radio signal, comprising the steps of;
(a1) measuring noise at a plurality of frequencies within the given frequency band;
(a2) measuring signals at a plurality of frequencies within the given frequency band to determine whether any of the frequencies within the given frequency band is used by an existing communication link;
(a3) determining a first plurality of available frequency channels within the given frequency band based upon the steps of measuring the noise and measuring the signals;
(b) computing, by the first wireless device, a first spectral signature for the first plurality of available frequency channels within the given frequency band;
(c) establishing, by the first wireless device, a first plurality of far-end communication parameters for the second wireless device;
(d) transmitting, by the first wireless device, the first plurality of far-end communication parameters to the second wireless device;
(e) receiving, by the second wireless device, the first plurality of far-end communication parameters from the first wireless device;
(f) scanning, by the second wireless device, a given frequency band for receiving a radio signal, comprising the steps of;
(f1) measuring noise at a plurality of frequencies within the given frequency band;
(f2) measuring signals at a plurality of frequencies within the given frequency band to determine whether any of the frequencies within the given frequency band is used by an existing communication link;
(f3) determining a second plurality of available frequency channels within the given frequency band based upon the steps of measuring the noise and measuring the signals;
(g) computing, by the second wireless device, a second spectral signature for the second plurality of available frequency channels within the given frequency band;
(h) establishing, by the second wireless device, a second plurality of far-end communication parameters for the first wireless device; and
(i) transmitting, by the second wireless device, the second plurality of far-end communication parameters to the first wireless device. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method of establishing communications between a plurality of wireless devices including at least a first wireless device and a second wireless device, the method comprising the steps of:
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(a) setting a plurality of frequency bands for scanning by the first wireless device;
(b) initializing scan receiver parameters by the first wireless device;
(c) scanning, by the first wireless device, a given frequency band for receiving a radio signal, comprising the steps of;
(c1) measuring noise at a plurality of frequencies within the given frequency band;
(c2) measuring signals at a plurality of frequencies within the given frequency band to determine whether any of the frequencies within the given frequency band is used by an existing communication link;
(c3) determining a first plurality of available frequency channels within the given frequency band based upon the steps of measuring the noise and measuring the signals;
(d) computing, by the first wireless device, a first spectral signature for the first plurality of available frequency channels within the given frequency band;
(e) establishing, by the first wireless device, a first plurality of far-end communication parameters for the second wireless device;
(f) transmitting, by the first wireless device, the first plurality of far-end communication parameters to the second wireless device;
(g) receiving, by the second wireless device, the first plurality of far-end communication parameters from the first wireless device;
(h) scanning, by the second wireless device, a given frequency band for receiving a radio signal, comprising the steps of;
(h1) measuring noise at a plurality of frequencies within the given frequency band;
(h2) measuring signals at a plurality of frequencies within the given frequency band to determine whether any of the frequencies within the given frequency band is used by an existing communication link;
(h3) determining a second plurality of available frequency channels within the given frequency band based upon the steps of measuring the noise and measuring the signals;
(i) computing, by the second wireless device, a second spectral signature for the second plurality of available frequency channels within the given frequency band;
(j) establishing, by the second wireless device, a second plurality of far-end communication parameters for the first wireless device;
(k) transmitting, by the second wireless device, the second plurality of far-end communication parameters to the first wireless device; and
(l) continually maintaining communications between the first wireless device and the second wireless device, comprising the steps of;
repeating steps (c)-(f) to transmit time-varying communication parameters from the first wireless device to the second wireless device; and
repeating steps (h)-(k) to transmit time-varying communication parameters from the second wireless device to the first wireless device. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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Specification