公开(公告)号：US20230337151A1

公开(公告)日：2023-10-19

申请号：US17720581

申请日：2022-04-14

Applicant: Apple Inc.

Inventor： Lorenzo Bertizzolo ,  Ioannis Pefkianakis ,  Prashant H. Vashi

IPC: H04W52/36 ,  H04W52/14 ,  H04W52/22

CPC classification number: H04W52/367 ,  H04W52/146 ,  H04W52/221

Abstract: A wireless communication device receives an average transmission power limit for a time period, and determines a first MTPL for a first time of the time period by setting the first MTPL to the average transmission power limit. The wireless communication device then transmits a signal at the first time using a first transmission power not to exceed the first MTPL. If the first transmission power is less than the first MTPL, then the wireless communication device determines residual transmission power based on a difference between the first MTPL and the first transmission power. The wireless communication device determines a second MTPL for a second time of the time period by adding the residual transmission power to the first MTPL. The wireless communication device then transmits a signal at the second transmission power not to exceed the second MTPL.

公开(公告)号：US12250647B2

公开(公告)日：2025-03-11

申请号：US17932666

申请日：2022-09-15

Applicant: Apple Inc.

Inventor： Lorenzo Bertizzolo ,  Prashant H. Vashi ,  Ioannis Pefkianakis

IPC: H04W52/36 ,  H04W52/14 ,  H04W52/26

Abstract: This application describes methods and apparatus to allocate uplink (UL) power dynamically across multiple parallel radio frequency links for wireless devices. The wireless device sets an initial maximum transmit power level (MTPL) for each UL radio link of multiple radio links used for UL traffic based on a duty cycle prediction for the respective UL radio link. The wireless device adjusts the initial MTPL for each UL radio link based on a predicted data throughput for the UL radio link relative to a total predicted data throughput for all UL radio links. The adjusted MTPL for each UL radio link can be also reduced when the UL radio link uses UL multiple input multiple output (MIMO) transmission via multiple antenna ports, e.g., by apportioning the adjusted MTPL among the multiple antenna ports of the UL radio link equally.