公开(公告)号：US20240106562A1

公开(公告)日：2024-03-28

申请号：US17935044

申请日：2022-09-23

Applicant: QUALCOMM Incorporated

Inventor： Haim WEISSMAN ,  Rakesh JALOTA ,  Ryan Scott Castro SPRING ,  Francesco GATTA ,  Mehmet UZUNKOL

IPC: H04K3/00 ,  H04B1/10

CPC classification number: H04K3/226 ,  H04B1/1027 ,  H04W4/40

Abstract: Methods and apparatus for performing automatic gain control (AGC) in bypass and filter modes for radio frequency (RF) front-end circuitry are described. An example method includes operating a receiver in a first mode during a first set of symbols of a first subframe. The method also includes, during a first symbol of the first subframe outside the first set of symbols, determining whether to operate the receiver in the first mode or a second mode in a second subframe, based at least in part on an output of a jamming detection circuit of the receiver in the first symbol. The method also includes controlling the receiver to operate in the first mode or the second mode in the second subframe, in accordance with the determination.

公开(公告)号：US20240040470A1

公开(公告)日：2024-02-01

申请号：US17816602

申请日：2022-08-01

Applicant: QUALCOMM Incorporated

Inventor： Ryan Scott Castro SPRING ,  Jing-Hwa CHEN ,  Rakesh JALOTA ,  Jungsik PARK ,  Pushpak Rajan SARANG

IPC: H04W40/20 ,  H04B1/44 ,  H04W4/44

CPC classification number: H04W40/20 ,  H04B1/44 ,  H04W4/44 ,  G07B15/063

Abstract: Certain aspects of the present disclosure provide apparatus and methods for cellular vehicle-to-everything (C-V2X) stationary object detection. One example radio frequency (RF) front-end circuit generally includes a directional coupler having a first port for coupling to an antenna and having a second port; and a delta switch having a first port coupled to the second port of the directional coupler, having a second port, and having a third port for coupling to a receive path for detection of a stationary object. The RF front-end circuit and methods for C-V2X stationary object detection may allow for concurrent (i) stationary object detection and (ii) C-V2X signal reception or transmission.