公开(公告)号：US20210050868A1

公开(公告)日：2021-02-18

申请号：US16947685

申请日：2020-08-12

Applicant: QUALCOMM Incorporated

Inventor： Haim Mendel WEISSMAN ,  Gideon Shlomo KUTZ ,  Alexander Vladimir SVERDLOV ,  Michael LEVITSKY ,  Balasubramanian RAMACHANDRAN ,  Sharon GRAIF

IPC: H04B1/00 ,  H04B1/16 ,  H04W88/06

Abstract: Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive a first signal associated with a first radio access technology (RAT) and receive a second signal associated with a second RAT. In some aspects, the UE may include one or more receiver chains associated with the first RAT and at least one receiver chain associated with the second RAT. The UE may couple, via one or more switches and based at least in part on respective energy levels associated with the first signal and the second signal satisfying one or more conditions, an output from a front end of the at least one receiver chain associated with the second RAT to the one or more receiver chains associated with the first RAT. Numerous other aspects are provided.

公开(公告)号：US20240284346A1

公开(公告)日：2024-08-22

申请号：US18568425

申请日：2021-08-12

Applicant: QUALCOMM Incorporated

Inventor： Jiazhi LIANG ,  Balasubramanian RAMACHANDRAN ,  Shuyang YIN ,  Tangtang WU

IPC: H04W52/28 ,  H04W52/36

CPC classification number: H04W52/283 ,  H04W52/367

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for geography-based transmit power backoff. A method that may be performed by a user equipment (UE) includes identifying a region in which the UE is located and selecting a first maximum power reduction value associated with the region. The method further includes determining a transmit power for a signal based at least in part on the selected first maximum power reduction value and transmitting the signal at the transmit power.

公开(公告)号：US20230097399A1

公开(公告)日：2023-03-30

申请号：US17448750

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

Inventor： Ahmed ABBAS MOHAMED HELMY ,  Francesco GATTA ,  Balasubramanian RAMACHANDRAN ,  Abhishek Ananthrao KULKARNI ,  Prakash THOPPAY EGAMBARAM ,  Hasnain LAKDAWALA ,  Aleksandar Miodrag TASIC ,  Jang Joon LEE ,  Kyle David HOLLAND

IPC: H04B1/40 ,  H04B1/10

Abstract: Certain aspects of the present disclosure generally relate to techniques and apparatus for operating a wireless receiver of the apparatus in a high linearity mode. An example method includes operating the apparatus in a first mode with transmission of a plurality of transmit signals. The method also includes attenuating a received signal via an attenuator while operating the apparatus in the first mode. The method further includes amplifying the attenuated signal with an amplifier while operating the apparatus in the first mode. For certain aspects, the method further involves operating the apparatus in a second mode, bypassing the attenuator while operating the apparatus in the second mode, and amplifying the received signal with the amplifier while operating the apparatus in the second mode.

公开(公告)号：US20230095161A1

公开(公告)日：2023-03-30

申请号：US17485016

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

Inventor： Hasnain LAKDAWALA ,  Ahmed ABBAS MOHAMED HELMY ,  Francesco GATTA ,  Balasubramanian RAMACHANDRAN ,  Ketan HUMNABADKAR ,  Andrea FENAROLI

IPC: H04B1/403 ,  H04W72/04

Abstract: Techniques and apparatus are described for reducing power consumption when performing wireless communications by dynamically changing the frequency of a local oscillator signal for a radio frequency (RF) downconversion circuit, based on signal conditions. An example method includes receiving an RF signal and downconverting the RF signal using an oscillating signal with a first frequency at a first time. The method also includes switching to downconverting the RF signal using the oscillating signal with a second frequency, based on a property associated with the RF signal at a second time. The second frequency is a subharmonic of the first frequency.

公开(公告)号：US20240048162A1

公开(公告)日：2024-02-08

申请号：US18363321

申请日：2023-08-01

Applicant: QUALCOMM Incorporated

Inventor： Francesco GATTA ,  Balasubramanian RAMACHANDRAN ,  Abhishek Ananthrao KULKARNI ,  Soon-Seng LAU

IPC: H04B1/00 ,  H04B1/04 ,  H04B1/18

CPC classification number: H04B1/0064 ,  H04B1/0475 ,  H04B1/18

Abstract: A system for wireless communications includes a first radio frequency front-end (RFFE) circuit coupled to a first antenna and a second RFFE coupled to a second antenna. The first RFFE circuit includes a first filter having a first passband spanning a first frequency band, a first low-noise amplifier (LNA) coupled to the first filter, and a bypass circuit configured to bypass the first filter, the bypass circuit including an attenuator. The first RFFE also includes a first switching circuit configured to couple the first antenna to the first filter or the bypass circuit. The second RFFE circuit includes a power amplifier, and a second filter coupled between the power amplifier and the second antenna, the second filter having a second passband spanning a second frequency band different than the first frequency band.