公开(公告)号：US20220345987A1

公开(公告)日：2022-10-27

申请号：US17721098

申请日：2022-04-14

Applicant: QUALCOMM Incorporated

Inventor： Thawatt GOPAL ,  Michael Lee MCCLOUD ,  David MALDONADO ,  Joseph David PAULINO ,  Sridhar BANDARU ,  Shriram GURUMOORTHY

IPC: H04W40/24 ,  H04W40/16 ,  H04B17/336 ,  H04L5/00

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for a UE to determine whether to maintain or remove a radio frequency (RF) path from a set of candidate paths considered for transmit antenna switch diversity (ASDIV). The determination allows the UE to avoid signal loss or degradation in coexisting networks at similar frequency ranges. For example, ASDIV allows two or more antennas to form different input and output ports to establish different RF paths. Coexistent networks, such as wireless wide-area-network (WWAN) and wireless local-area-network (WLAN) may utilize different RF paths to optimize reliability and efficiency. The overlapping of the bands may cause signal attenuation or degradation from at least one of the networks. The present disclosure provides techniques for detecting signal attenuation at least partially caused by overlapping bands and removing an associated RF path to avoid such signal loss or attenuation.

公开(公告)号：US20200336999A1

公开(公告)日：2020-10-22

申请号：US16924053

申请日：2020-07-08

Applicant: QUALCOMM Incorporated

Inventor： Helena Deirdre O'SHEA ,  David MALDONADO ,  Ramakrishna NARAYANASWAMI ,  Chuan WANG ,  Wolfgang ROETHIG

IPC: H04W52/52 ,  H04B1/403 ,  H04W4/80 ,  H04W52/02 ,  H04W72/12

Abstract: Disclosed aspects relate to methods and apparatus for coexistent radio frequency (RF) systems in a wireless device. Control of a wireless device includes detecting when a turn on signal is issued to a first radio system, and then controlling the second radio system to either modify the operation of receiver circuitry in the second radio system to protect components within that system, or modify transmit circuitry to stop transmissions for protecting components within one radio system potentially affected by transmission from the other radio system in the wireless device. Disclosed also is monitoring of transmission states of the radio systems based on reading messages between the first and second radio systems and issuing a notification message based thereon such that one of the radio systems may suspend monitoring of a transmit channel for permission to transmit in order to reduce power consumption due to such monitoring of the channel.

公开(公告)号：US20230403052A1

公开(公告)日：2023-12-14

申请号：US17839921

申请日：2022-06-14

Applicant: Henriette C Franck ,  QUALCOMM INCORPORATED

Inventor： Andrew Puayhoe SEE ,  David MALDONADO ,  Peter J. SHAH

IPC: H04B7/0456 ,  H04B1/04

CPC classification number: H04B7/0456 ,  H04B1/0483 ,  G06K19/0723

Abstract: A system for signal processing includes a radio frequency integrated circuit (RFIC) having a plurality of available transmission paths, the RFIC configured to have at least a first communication signal on a first transmission path of the available transmission paths, a plurality of power amplifier/low noise amplifier (PA/LNA) modules selectively connected to the RFIC, each of the PA/LNA modules configured to connect to at least one respective antenna, and switch logic configured to connect the at least first communication signal to any of the plurality of PA/LNA modules prior to power amplification, while preventing the first communication signal from affecting or being affected by another communication signal on another of the plurality of available transmission paths.

公开(公告)号：US20180368082A1

公开(公告)日：2018-12-20

申请号：US16009015

申请日：2018-06-14

Applicant: QUALCOMM Incorporated

Inventor： Helena Deirdre O'SHEA ,  David MALDONADO ,  Ramakrishna NARAYANASWAMI ,  Chuan WANG ,  Wolfgang ROETHIG

IPC: H04W52/52 ,  H04W52/02 ,  H04W72/12

Abstract: Disclosed aspects relate to methods and apparatus for coexistent radio frequency (RF) systems in a wireless device. Control of a wireless device includes detecting when a turn on signal is issued to a first radio system, and then controlling the second radio system to either modify the operation of receiver circuitry in the second radio system to protect components within that system, or modify transmit circuitry to stop transmissions for protecting components within one radio system potentially affected by transmission from the other radio system in the wireless device. Disclosed also is monitoring of transmission states of the radio systems based on reading messages between the first and second radio systems and issuing a notification message based thereon such that one of the radio systems may suspend monitoring of a transmit channel for permission to transmit in order to reduce power consumption due to such monitoring of the channel.

公开(公告)号：US20180331714A1

公开(公告)日：2018-11-15

申请号：US15976711

申请日：2018-05-10

Applicant: QUALCOMM Incorporated

Inventor： Andrew Puayhoe SEE ,  David MALDONADO ,  Gurkanwal SAHOTA

IPC: H04B1/44 ,  H04B7/06 ,  H04B7/08 ,  H01Q5/50 ,  H04B1/00

CPC classification number: H04B1/44 ,  H01Q5/50 ,  H04B1/0057 ,  H04B1/006 ,  H04B1/0064 ,  H04B1/0067 ,  H04B1/525 ,  H04B1/58 ,  H04B7/0602 ,  H04B7/0693 ,  H04B7/0814 ,  H04B7/0877

Abstract: A method includes: controllably configuring at least one antenna diversity switch in a wireless device to establish conductive paths between at least one transceiver of the wireless device and multiple antennas each disposed at a respective one of a multiple areas of a housing of the wireless device; and routing signals between the at least one transceiver and the multiple antennas, via the at least one antenna diversity switch, such that a signal is routed to either of at least two of the multiple antennas disposed at a first end area of the multiple areas of the housing of the wireless device or to either of at least two other antennas disposed at a second end area of the multiple areas of the housing of the wireless device.

公开(公告)号：US20220385337A1

公开(公告)日：2022-12-01

申请号：US17881501

申请日：2022-08-04

Applicant: Qualcomm Incorporated

Inventor： Stefan FREISLEBEN ,  Patric HEIDE ,  Alexander CHERNYAKOV ,  Mykola SHEVELOV ,  Wai San WONG ,  Oleksandr GAVRYLIUK ,  Petro KOMAKHA ,  Georgiy SEVSKIY ,  Steve Andre BEAUDIN ,  David MALDONADO

IPC: H04B7/0413 ,  H04B1/00 ,  H04B1/18 ,  H04B1/40

Abstract: In an example, an apparatus includes first and second antennas and a switched extractor coupled to the first antenna. The switched extractor includes an extractor configured to extract an extraction frequency band, a bypass line, and switching circuitry. The switching circuitry is configured to selectively establish a bypass signal path including the bypass line or a concurrent signal path including the extractor. The apparatus also includes first and second transceiver units (TRXUs) and a processor. The first TRXU is coupled to the first antenna via the switched extractor. The second TRXU is coupled to the first antenna via the switched extractor and coupled to the second antenna. The processor is configured to cause the switching circuitry to selectively connect the first TRXU to the first antenna via the bypass or the concurrent signal path based on the extraction frequency band and an operational frequency band associated with the first TRXU.

公开(公告)号：US20210067186A1

公开(公告)日：2021-03-04

申请号：US17005762

申请日：2020-08-28

Applicant: QUALCOMM Incorporated

Inventor： Steve Andre BEAUDIN ,  Patric HEIDE ,  Wai San WONG ,  Michael KOHLMANN ,  David MALDONADO ,  Ryan Scott Castro SPRING ,  Stefan FREISLEBEN ,  Mykola SHEVELOV ,  Francis NGAI

IPC: H04B1/10 ,  H04B1/00 ,  H04B1/401

Abstract: Certain aspects of the disclosure related to communications apparatus provides isolation between wireless protocols when operating currently while incurring the additional insertion loss based on providing the isolation only when needed. In an aspect, an apparatus include a switched filter coupled to an antenna where the switched filter includes a filter and a bypass line along with switching circuitry configured to selectively establish a bypass signal path including the bypass line or a filtered signal path including the filter. The apparatus further includes a switched filter controller configured to cause the switching circuitry to selectively connect a transceiver unit to the antenna via the bypass signal path or via the filtered signal path based at least on a frequency band of a carrier signal and a bandwidth of the carrier signal.

公开(公告)号：US20190097715A1

公开(公告)日：2019-03-28

申请号：US16138954

申请日：2018-09-21

Applicant: QUALCOMM Incorporated

Inventor： David MALDONADO ,  Andrew Puayhoe SEE

IPC: H04B7/08 ,  H04L5/14 ,  H04B1/44 ,  H03F3/189

Abstract: Disclosed aspects relate to methods and apparatus for controlling a wireless device having at least one radio frequency (RF) system. The methods and apparatus are configured to select an antenna for transmission of signals from radio components of the at least one RF system from between a first default antenna normally coupled to the radio components of the at least one RF system for transmission of signals and one of a plurality of other antennas in the wireless device. Further, switching is configured to couple the radio components to one of the other plurality of antennas selected as the antenna for transmission cycles when the radio components are transmitting in an antenna switch diversity (ASDIV) period. Additionally, the methods and apparatus are configured to operate a switch to couple the radio components back to at least the first default antenna during receiving cycles during the ASDIV period.