公开(公告)号：US11770145B2

公开(公告)日：2023-09-26

申请号：US17885187

申请日：2022-08-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vamadevan Namboodiri ,  Wook Bong Lee ,  Donghan Kim ,  Ruchen Duan ,  Mostafa Sayed Roshdy Ibrahim

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H04B2001/0425

Abstract: An electronic device configured to apply, to a first power amplifier (PA) input, one or more updated memory digital pre-distorter (mDPD) coefficient values is provided. The electronic device includes a processor; and a memory including a non-transitory computer readable storage medium storing instructions that, when executed, cause the processor to preload, from values stored in the memory of the electronic device, one or more mDPD coefficient values; transmit a training signal sequence while using the preloaded one or more mDPD coefficient values; receive the training signal sequence; update the one or more mDPD coefficient values based on the transmitted training signal sequence, the received training signal sequence, and the preloaded one or more mDPD coefficient values; and apply the updated one or more mDPD coefficient values to distort the first PA input.

公开(公告)号：US20230067808A1

公开(公告)日：2023-03-02

申请号：US17883528

申请日：2022-08-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ruchen Duan ,  Wook Bong Lee ,  Vamadevan Namboodiri ,  Srinivas Kandala ,  Ashok Ranganath

IPC: H04L1/00 ,  H04L1/20

Abstract: A system and method for feedback for link adaptation. In some embodiments, the method includes: receiving, by a receiver, a first transmission from a transmitter; calculating a first estimated packet error rate, for a first modulation and coding scheme and a first number of spatial streams, the first modulation and coding scheme having a first modulation and coding scheme index; determining that the first estimated packet error rate is less than a threshold; and in response to determining that the first estimated packet error rate is less than the threshold, calculating a second estimated packet error rate, for a second modulation and coding scheme.