公开(公告)号：US20230275784A1

公开(公告)日：2023-08-31

申请号：US18152882

申请日：2023-01-11

Applicant: QUALCOMM Incorporated

Inventor： Mohamad SAYED HASSAN ,  Andrei Dragos RADULESCU ,  Srikant JAYARAMAN ,  Mark WALLACE ,  Michael Francis GARYANTES ,  Luca BLESSENT ,  Rajat PRAKASH ,  Abhishek Saurabh SACHIDANAND SINHA ,  Jigneshkumar SHAH

IPC: H04L25/02 ,  H04W72/21 ,  H04L5/00 ,  H04B7/06 ,  H04L41/0803

CPC classification number: H04L25/0202 ,  H04W72/21 ,  H04L5/0048 ,  H04B7/0617 ,  H04L41/0803

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a radio unit (RU) may receive, from a user equipment (UE), a demodulation reference signal (DMRS) associated with a channel. The RU may perform a channel estimation associated with the channel using the DMRS to obtain channel estimation information. The RU may transmit, to a distributed unit (DU), information that is based at least in part on the channel estimation information. Numerous other aspects are described.

公开(公告)号：US20180227021A1

公开(公告)日：2018-08-09

申请号：US15939145

申请日：2018-03-28

Applicant: QUALCOMM Incorporated

Inventor： John KETCHUM ,  Mark WALLACE ,  J. Rodney WALTON ,  Steven HOWARD

IPC: H04B7/04 ,  H04B7/06 ,  H04L1/00 ,  H04B7/08 ,  H04L25/02 ,  H04L5/00 ,  H04L27/26 ,  H04L1/08 ,  H04L1/06 ,  H04L25/03 ,  H04L1/16 ,  H04L27/00 ,  H04W16/28 ,  H04W52/50 ,  H04W28/20

CPC classification number: H04B7/0421 ,  H04B7/043 ,  H04B7/0615 ,  H04B7/0669 ,  H04B7/0684 ,  H04B7/0697 ,  H04B7/0854 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/0071 ,  H04L1/0618 ,  H04L1/08 ,  H04L1/16 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/006 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/03343 ,  H04L27/2613 ,  H04L2027/0089 ,  H04W16/28 ,  H04W28/20 ,  H04W52/50

Abstract: Pilots suitable for use in MIMO systems and capable of supporting various functions are described. The various types of pilot include—a beacon pilot, a MIMO pilot, a steered reference or steered pilot, and a carrier pilot. The beacon pilot is transmitted from all transmit antennas and may be used for timing and frequency acquisition. The MIMO pilot is transmitted from all transmit antennas but is covered with different orthogonal codes assigned to the transmit antennas. The MIMO pilot may be used for channel estimation. The steered reference is transmitted on specific eigenmodes of a MIMO channel and is user terminal specific. The steered reference may be used for channel estimation. The carrier pilot may be transmitted on designated subbands/antennas and may be used for phase tracking of a carrier signal. Various pilot transmission schemes may be devised based on different combinations of these various types of pilot.

公开(公告)号：US20240259162A1

公开(公告)日：2024-08-01

申请号：US18161770

申请日：2023-01-30

Applicant: QUALCOMM Incorporated

Inventor： Jigneshkumar SHAH ,  Abhishek Saurabh SACHIDANAND SINHA ,  Michael Francis GARYANTES ,  Deepak AGARWAL ,  Osama ALRABADI ,  Mark WALLACE ,  Andrea GARAVAGLIA ,  Shmuel VAGNER

IPC: H04L5/00 ,  H04B7/0452 ,  H04B7/0456

CPC classification number: H04L5/0053 ,  H04B7/0452 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication identifying whether a physical resource block (PRB) allocation boundary discontinuity is present. The UE may communicate using a precoding configuration applied based at least in part on the indication identifying whether the PRB allocation boundary discontinuity is present. Numerous other aspects are described.