公开(公告)号：US11206071B2

公开(公告)日：2021-12-21

申请号：US16996831

申请日：2020-08-18

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Juergen Cezanne ,  Junyi Li ,  Dai Lu ,  Joseph Patrick Burke ,  Wenjun Li

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0456 ,  H04B7/08

Abstract: A UE may be configured to communicate using one of analog beamforming or hybrid beamforming. The UE may receive a set of beamformed signals from a base station. The UE may determine a set of angular spread values associated with a set of clusters in a channel between the base station and the UE based on the set of beamformed signals received from the base station. The UE may transmit the set of angular spread values to the base station. The UE may receive, from the base station based on the set of angular spread values, a set of transmission ranks associated with at least one cluster of the set of clusters. The UE may communicate at least one data stream with the base station across the at least one cluster using the set of transmission ranks associated with the at least one cluster of the set of clusters.

公开(公告)号：US20210013940A1

公开(公告)日：2021-01-14

申请号：US16509890

申请日：2019-07-12

Applicant: Qualcomm Incorporated

Inventor： Dai Lu ,  Joseph Patrick Burke ,  Juergen Cezanne ,  Raju Hormis ,  Ozge Koymen ,  Robert Douglas

IPC: H04B7/06 ,  H04B1/58 ,  H04B1/44

Abstract: An apparatus is disclosed for implementing a flexible beamforming architecture. In an example aspect, the apparatus comprises an antenna array comprising a first antenna element with a first feed port and a second antenna element with a second feed port. The apparatus also comprises a wireless transceiver with a first dedicated transceiver path coupled to the first feed port and a second dedicated transceiver path coupled to the second feed port. The wireless transceiver also comprises a flexible beamforming network configured to selectively be in a first configuration that couples both the first dedicated transceiver path and the second dedicated transceiver path to a first intermediate transceiver path of the wireless transceiver, and be in a second configuration that connects the first dedicated transceiver path to the first intermediate transceiver path and connects the second dedicated transceiver path to a second intermediate transceiver path of the wireless transceiver.

公开(公告)号：US10680725B1

公开(公告)日：2020-06-09

申请号：US16418740

申请日：2019-05-21

Applicant: QUALCOMM Incorporated

Inventor： Dai Lu ,  Robert Douglas ,  Andrew Arnett

IPC: H01Q3/30 ,  H04B17/12 ,  H01Q3/26 ,  H04B17/10

Abstract: In certain aspects, a method for calibration includes setting a phase shift of a first phase shifter to a reference phase shift, wherein the first phase shifter shifts a phase of a first signal transmitted via a first antenna. The method also includes sequentially setting a phase shift of a second phase shifter to each one of a first plurality of phase shifts, wherein the second phase shifter shifts a phase of a second signal transmitted via a second antenna. The method further includes receiving the first and second signals at a receiver via a third antenna, and, for each one of the first plurality of phase shifts, measuring a magnitude of a third signal at the receiver, wherein the third signal includes the received first and second signals. The method further includes determining a calibration phase shift based on one or more of the measured magnitudes.