US 12,457,560 B2
Wireless transmitter and a method for transmitting data
Avi Weitzman, Hod Hasharon (IL); Doron Ezri, Hod Hasharon (IL); Ezer Melzer, Hod Hasharon (IL); Shahar Patury, Hod Hasharon (IL); and Xingfeng Jiang, Nanjing (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Oct. 5, 2022, as Appl. No. 17/960,451.
Application 17/960,451 is a continuation of application No. PCT/EP2020/061050, filed on Apr. 21, 2020.
Prior Publication US 2023/0027617 A1, Jan. 26, 2023
Int. Cl. H04W 52/24 (2009.01); H04B 17/336 (2015.01); H04L 1/00 (2006.01); H04W 52/26 (2009.01)
CPC H04W 52/241 (2013.01) [H04B 17/336 (2015.01); H04L 1/0003 (2013.01); H04L 1/0009 (2013.01); H04W 52/262 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A wireless transmitter configured to transmit data to a wireless receiver using a selected modulation and coding scheme (MCS) of a plurality of MCSs, each MCS defining an upper limit of an error vector magnitude (EVM) corresponding to an upper limit of a transmitted power of the wireless transmitter, wherein the wireless transmitter is configured to:
transmit data to the wireless receiver using the selected MCS and an adjusted transmitted power that is larger or smaller than the upper limit of the transmitted power, when the combined effects of an adjusted EVM and an adjusted received power at the wireless receiver caused by the adjusted transmitted power result in an improved data transmission performance, wherein the improved data transmission performance is a larger signal-to-interference-plus-noise ratio (SINR) at the wireless receiver;
determine whether the combined effects of the adjusted EVM and the adjusted received power caused by the adjusted transmitted power result in a larger SINR at the wireless receiver on the basis of information about a SINR at the wireless receiver for a preceding data transmission; and
estimate a signal-to-noise ratio (SNR) at the wireless receiver for the preceding data transmission on the basis of the information about the SINR at the wireless receiver for the preceding data transmission and a relation between the transmitted power of the wireless transmitter for the preceding data transmission and the EVM resulting from the transmitted power for the preceding data transmission.