公开(公告)号：US12101143B2

公开(公告)日：2024-09-24

申请号：US18170409

申请日：2023-02-16

Applicant: QUALCOMM Incorporated

Inventor： Gowrisankar Somichetty ,  Ganesh Nagamani ,  Hong Zhang ,  Lokesh Sundaramurthy Satrasala ,  Pratik Vinod Agrawal ,  Sai Aditya Chundi ,  Leiter Kang ,  Ramakrishna Vadlamani

IPC: H04B7/0413 ,  H04B7/0456 ,  H04B7/08

CPC classification number: H04B7/0456 ,  H04B7/0854 ,  H04B7/0857

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiving device may receive a wireless signal represented as a receive matrix. The wireless signal carries one or more information symbols modified through a wireless channel that is represented as a channel matrix. The receiving device may perform QR decomposition on the channel matrix to generate an upper triangular channel matrix. The receiving device may determine a selected demapping technique using the upper triangular channel matrix. The receiving device may perform the selected demapping technique on the receive matrix and the channel matrix. Numerous other aspects are described.

公开(公告)号：US12089196B2

公开(公告)日：2024-09-10

申请号：US17572349

申请日：2022-01-10

Applicant: QUALCOMM Incorporated

Inventor： Hong Zhang ,  Jyotish Robin ,  Yuksel Ozan Basciftci

IPC: H04W72/04 ,  H04B7/0413 ,  H04L25/03 ,  H04L27/38 ,  H04W72/044 ,  H04W72/20

CPC classification number: H04W72/046 ,  H04B7/0413 ,  H04L25/03891 ,  H04L27/38 ,  H04W72/20

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may receive a transmission including a set of spatial layers. The set of spatial layers may include at least a first spatial layer and a second spatial layer subsequent to the first spatial layer. The device may determine a first number of search points of the first spatial layer based on a modulation order of the first spatial layer, and a second number of search points of the second spatial layer based on the first number of search points and a modulation order of the second spatial layer. The device may compute a quantity of distance metrics based on the first and second numbers of search points. The device may demap symbols of the received transmission based on the quantity of distance metrics. In some examples, demapping the symbols may be based on a per-stream recursive demapping process.

公开(公告)号：US20230224884A1

公开(公告)日：2023-07-13

申请号：US17572349

申请日：2022-01-10

Applicant: QUALCOMM Incorporated

Inventor： Hong Zhang ,  Jyotish Robin ,  Yuksel Ozan Basciftci

IPC: H04W72/04 ,  H04W64/00 ,  H04W84/02 ,  H04W72/12 ,  H04L65/65

CPC classification number: H04W72/0453 ,  H04W64/003 ,  H04W84/02 ,  H04W72/1278 ,  H04L65/608

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may receive a transmission including a set of spatial layers. The set of spatial layers may include at least a first spatial layer and a second spatial layer subsequent to the first spatial layer. The device may determine a first number of search points of the first spatial layer based on a modulation order of the first spatial layer, and a second number of search points of the second spatial layer based on the first number of search points and a modulation order of the second spatial layer. The device may compute a quantity of distance metrics based on the first and second numbers of search points. The device may demap symbols of the received transmission based on the quantity of distance metrics. In some examples, demapping the symbols may be based on a per-stream recursive demapping process.