公开(公告)号：US20240283497A1

公开(公告)日：2024-08-22

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: H04B7/0456 ,  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：US20210360526A1

公开(公告)日：2021-11-18

申请号：US16938609

申请日：2020-07-24

Applicant: QUALCOMM Incorporated

Inventor： Ganesh NAGAMANI ,  Raghavendra Shyam ANANDA ,  Srikanth MENON

IPC: H04W52/02 ,  H04L5/00 ,  H04W68/00 ,  H04W72/04

Abstract: Aspects of the disclosure relate to a user equipment (UE) for wireless communication. The UE wakes to monitor for a wakeup signal (WUS) having a maximum WUS duration and configured to indicate an upcoming transmission of a paging signal corresponding to the WUS. The UE detects a reference signal tone energy from tones carrying reference signals, detects a WUS tone energy from tones designated for carrying the WUS, and determines whether the WUS is present or absent based on the WUS tone energy and the reference signal tone energy. The UE then transitions to a sleep state prior to an end of the maximum WUS duration when the WUS is determined to be absent. Alternatively, the UE remains awake when the WUS is determined to be present and receives the paging signal corresponding to the WUS. Other aspects, features, and embodiments are also claimed and described.

公开(公告)号：US20200236173A1

公开(公告)日：2020-07-23

申请号：US16255435

申请日：2019-01-23

Applicant: QUALCOMM INCORPORATED

Inventor： Raghavendra Shyam ANANDA ,  Srikanth MENON ,  Ganesh NAGAMANI ,  Anand RAJURKAR

IPC: H04L29/08 ,  H04L27/00 ,  H04W56/00 ,  H04W72/04 ,  H04B17/318 ,  H04W48/10

Abstract: A user equipment (UE) performs wireless communication by starting a scan of an absolute radio frequency channel number (ARFCN) configured for performing a narrowband communication. The UE determines, based on a spectral characteristic of a phase of a signal in the ARFCN, whether a cellular communication is deployed in the ARFCN. The UE may then terminate the scan of the ARFCN in response to the spectral characteristic of the phase of the signal in the ARFCN indicating that the cellular communication is deployed in the ARFCN. Alternatively, the UE may proceed with a synchronization signal search on the ARFCN in response to the spectral characteristic of the phase of the signal in the ARFCN indicating that the cellular communication is not deployed in the ARFCN.