US 12,414,054 B2
Systems and methods for allocating transmit power and optionally a channel to a radio requesting authorization to transmit in shared spectrum
Navin Srinivasan, Fairfax, VA (US); and Ariful Hannan, Sterling, VA (US)
Assigned to Outdoor Wireless Networks LLC, Richardson, TX (US)
Filed by Outdoor Wireless Networks LLC, Claremont, NC (US)
Filed on Mar. 30, 2023, as Appl. No. 18/193,326.
Claims priority of provisional application 63/337,432, filed on May 2, 2022.
Claims priority of provisional application 63/331,410, filed on Apr. 15, 2022.
Prior Publication US 2023/0337149 A1, Oct. 19, 2023
Int. Cl. H04W 52/34 (2009.01); H04W 52/36 (2009.01); H04W 72/0453 (2023.01)
CPC H04W 52/346 (2013.01) [H04W 52/367 (2013.01); H04W 72/0453 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving a grant request (a) specifying a channel in shared frequency spectrum and (b) a maximum transmit power level at which a requesting general authorized access (GAA) citizens broadband radio service device (CBSD) desires to transmit in the specified channel, and transmitted by the requesting GAA CBSD;
identifying each edge between a non-requesting GAA CBSD and the requesting GAA CBSD, wherein each non-requesting GAA CBSD is geographically located in a neighborhood centered around the requesting GAA CBSD;
determining whether there is at least one edge between the requesting GAA CBSD and at least one non-requesting GAA CBSD;
determining that there is the at least one edge between the requesting GAA CBSD and the at least one non-requesting GAA CBSD, then determining, for the requesting GAA CBSD, a bandwidth quota;
determining whether a total bandwidth (Total BW) assigned to the requesting GAA CBSD is greater than the bandwidth quota, wherein the total bandwidth assigned to the requesting GAA CBSD is a sum of (a) a bandwidth of each channel in which the requesting GAA CBSD is presently authorized to transmit, and (b) a bandwidth of a channel identified in the grant request;
determining that the total bandwidth assigned to the requesting GAA CBSD is not greater than the bandwidth quota, then determining (a) a channel, orthogonal or non-orthogonal if no orthogonal channels exist to channels in which each non-requesting GAA CBSD are presently authorized to transmit and/or (b) a maximum transmit power level for a determined channel, and transmitting the determined channel and/or the determined maximum transmit power level to the requesting GAA CBSD;
determining whether the requesting GAA CBSD is marked as a recalibrating CBSD, wherein the recalibrating CBSD is a requesting GAA CBSD that has an edge with a former requesting GAA CBSD geographically located in the neighborhood centered around the requesting CBSD and wherein the former requesting GAA CBSD received authorization to transmit in a channel (a) in the shared frequency spectrum at a time between a prior executed Coordinated Periodic Activities among SASs (CPAS) and a next to be executed CPAS and (a) which overlaps a channel in which the requesting GAA CBSD is authorized to transmit prior to the requesting GAA CBSD transmitting its grant request;
determining that the requesting GAA CBSD is not a recalibrating CBSD, then if no free frequency spectrum is available, then diminishing bandwidth allocated to the requesting GAA CBSD to equal the bandwidth quota, or if the free frequency spectrum is available, then, determining and transmitting, to the requesting GAA CBSD, (a) a channel which is in the free frequency spectrum and/or (b) a maximum transmit power level for the determined channel for requested by the requesting GAA CBSD, wherein the free frequency spectrum means frequency spectrum which is orthogonal to frequency spectrum of any incumbent user(s), incumbent region(s), and any non-requesting GAA CBSD(s) which are geographically located in a neighborhood centered around the requesting GAA CBSD; and
determining that the requesting GAA CBSD is a recalibrating CBSD, then (i) (a) determining a channel, orthogonal or non-orthogonal if no orthogonal channels exist to channels in which each non-requesting GAA CBSD are presently authorized to transmit, and then diminishing bandwidth in the shared frequency spectrum in which the requesting GAA CBSD is presently authorized to transmit to equal the bandwidth quota, and/or (b) determining a maximum transmit power level for the determined channel, and (ii) transmitting the determined channel and/or the determined maximum transmit power level to the requesting GAA CBSD;
wherein the requesting GAA CBSD is configured to transmit using the determined maximum transmit power level and/or the determined channel.