US 12,267,689 B2
Systems and methods for providing a radio prompt access to shared spectrum
Khalid W. Al-Mufti, Sterling, VA (US); and Ariful Hannan, Sterling, VA (US)
Assigned to Outdoor Wireless Networks LLC, Claremont, NC (US)
Filed by Outdoor Wireless Networks LLC, Claremont, NC (US)
Filed on Jan. 10, 2022, as Appl. No. 17/571,807.
Claims priority of provisional application 63/135,983, filed on Jan. 11, 2021.
Prior Publication US 2022/0225109 A1, Jul. 14, 2022
Int. Cl. H04W 16/14 (2009.01); H04W 52/24 (2009.01); H04W 52/28 (2009.01); H04W 52/36 (2009.01)
CPC H04W 16/14 (2013.01) [H04W 52/243 (2013.01); H04W 52/283 (2013.01); H04W 52/367 (2013.01)] 33 Claims
OG exemplary drawing
 
1. A program product comprising a non-transitory processor readable medium on which program instructions are embodied, wherein the program instructions are configured, when executed by at least one programmable processor, to cause the at least one programmable processor to:
receive co-existence data and information about a new radio configured to transmit in shared frequency spectra, wherein the co-existence data includes data about a network graph comprising at least one connected set, wherein each connected set comprises at least one node and each node comprises at least one other radio; and
determine a frequency spectrum and a maximum transmit power that can be allocated to the new radio prior to execution of planned spectrum coordination analysis and based upon whether the new radio forms an edge with at least one node of at least one connected set, wherein each edge occurs when a criterion of interference at either the new radio due to at least one radio of which the at least one node comprises, or the at least one node due to the new radio, exceeds a corresponding threshold level;
wherein determine the frequency spectrum and the maximum transmit power that can be allocated to the new radio prior to the execution of planned spectrum coordination comprises one of:
(i) determine if the new radio forms an edge with at least one node of a connected set, wherein the edge between the new radio and the at least one node of the connected set is a criterion of interference at the new radio or at a node that exceeds a second threshold level of interference;
determine that the new radio forms the edge with at least one node of a connected set, then determine if the new radio forms another edge with only one connected set; and
determine that the new radio forms the other edge with only one connected set, then determine a frequency spectrum, in the shared frequency spectra, and a maximum transmit power which can be provided to the new radio when diminishing interference to (a) at least one other radio comprising at least one node of a connected set which with the new radio forms the other edge and (b) at least one protection point each of which is associated with another frequency spectrum that includes all or part of the determined frequency spectrum and each of which has a neighborhood encompassing a geographic location of the new radio, wherein associated with another frequency spectrum is frequency spectrum that must be free of interference at a geographic location of a protection point;
(ii) determine if the new radio forms the edge with at least one node of a connected set, wherein the edge between the new radio and the at least one node of the connected set is a criterion of interference at the new radio or at a node that exceeds a second threshold level of interference;
determine that the new radio forms the edge with at least one node of a connected set, then determine if the new radio forms the other edge with only one connected set; and
determine that the new radio forms the other edge with more than one connected set, then determine a frequency spectrum, in the shared frequency spectra, and a maximum transmit power which can be granted to the new radio when diminishing interference at (a) at least one other radio comprising at least one node of at least one connected set, wherein the new radio forms an edge with at least one node of each of the at least one connected set, and (b) at least one protection point each of which is associated with another frequency spectrum that includes all or part of the determined frequency spectrum and each of which has a neighborhood encompassing a geographic location of the new radio;
(iii) determine if the new radio forms the edge with at least one node of a connected set, wherein the edge between the new radio and the at least one node of the connected set is a criterion of interference at the new radio or at a node that exceeds a second threshold level of interference; and
determine that the new radio does not form the edge with at least one node of a connected set, then:
allocate a color to the new radio;
determine if protection point interference free spectrum is available, wherein protection point interference free frequency spectrum is frequency spectrum in the shared frequency spectra which does not overlap, in whole or in part, frequency spectrum associated with a protection point in whose neighborhood the new radio is geographically located, wherein frequency spectrum associated with a protection point is frequency spectrum that must be free of interference at a geographic location of the protection point; and
determine that the protection point interference free spectrum is available, then determine a frequency spectrum, in the shared frequency spectra, and a maximum transmit power, where the determined frequency spectrum consists of all or a portion of a protection point interference free frequency spectrum; and
(iv) determine if the new radio forms the edge with at least one node of a connected set, wherein the edge between the new radio and the at least one node of the connected set is a criterion of interference at the new radio or at a node that exceeds a second threshold level of interference; and
determine that the new radio does not form the edge with at least one node of a connected set, then:
allocate a color to the new radio;
determine if protection point interference free spectrum is available, wherein protection point interference free frequency spectrum is frequency spectrum in the shared frequency spectra which does not overlap, in whole or in part, frequency spectrum associated with a protection point in whose neighborhood the new radio is geographically located, wherein frequency spectrum associated with a protection point is frequency spectrum that must be free of interference at a geographic location of the protection point; and
determine that the protection point interference free spectrum is unavailable, then determine a frequency spectrum, in the shared frequency spectra, and a maximum transmit power, where the determined frequency spectrum consists of all or a portion of a frequency spectrum associated with a protection point, whose neighborhood encompasses the geographic location of the new radio, that has a largest value of a difference determined by when interference, from the new radio, at the protection point is subtracted from an interference margin for the protection point, wherein the interference margin for a protection point is a sum of at least a head room margin for the protection point and an unused interference margin of the frequency spectrum.