US 12,250,647 B2
Dynamic power budget allocation using individualized MTPL per radio link for uplink transmission
Lorenzo Bertizzolo, Campbell, CA (US); Prashant H. Vashi, San Jose, CA (US); and Ioannis Pefkianakis, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 15, 2022, as Appl. No. 17/932,666.
Prior Publication US 2024/0098654 A1, Mar. 21, 2024
Int. Cl. H04W 52/36 (2009.01); H04W 52/14 (2009.01); H04W 52/26 (2009.01)
CPC H04W 52/367 (2013.01) [H04W 52/146 (2013.01); H04W 52/267 (2013.01)] 20 Claims
OG exemplary drawing
 
10. A wireless device comprising:
wireless circuitry comprising a plurality of antenna ports;
at least one processor communicatively coupled to the wireless circuitry and to a memory storing instructions that, when executed by the at least one processor, configures the wireless device to dynamically allocate an uplink (UL) transmit power budget across multiple radio links by at least:
for each radio link of the multiple radio links:
determining a predicted duty cycle for active use of the radio link during a time interval based on observations of estimated duty cycles of the radio link for one or more previous time intervals;
determining an initial maximum transmit power limit (MTPL) for the radio link based on the predicted duty cycle;
estimating a data throughput requirement for the radio link for the time interval;
estimating a total data throughput requirement for all of the multiple radio links for the time interval;
calculating an adjusted MTPL for each antenna port of the radio link based on:
the initial MTPL for the radio link;
the estimated data throughput requirement for the radio link relative to the estimated total data throughput for the multiple radio links, and
a number of antenna ports used by the radio link; and
transmitting UL data via each antenna port of the radio link during the time interval using a transmission power level not exceeding the adjusted MTPL calculated for the respective antenna port of the radio link.