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：US20190286587A1

公开(公告)日：2019-09-19

申请号：US16262267

申请日：2019-01-30

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee MISHRA ,  Richard Dominic WIETFELDT ,  Helena Deirdre O'SHEA ,  Wolfgang ROETHIG ,  Christopher Kong Yee CHUN ,  ZhenQi CHEN ,  Scott DAVENPORT ,  Chiew-Guan TAN ,  Wilson CHEN ,  Umesh SRIKANTIAH

IPC: G06F13/24 ,  G06F13/42

Abstract: Systems, methods, and apparatus for data communication are provided. A method performed by a bus master includes terminating transmission of a first datagram by signaling a first bus park cycle on a serial bus, causing a driver to enter a high-impedance state, opening an interrupt window by providing a first edge in a clock signal transmitted on a second line of the serial bus, closing the interrupt window by providing a second edge in the clock signal, signaling a second bus park cycle on the serial bus, initiating an arbitration process when an interrupt was received on the first line of the serial bus while the interrupt window was open, and initiating a transmission of a second datagram when an interrupt was not received on the first line of the serial bus while the interrupt window was open.

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：US20180060272A1

公开(公告)日：2018-03-01

申请号：US15803639

申请日：2017-11-03

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee MISHRA ,  Richard Dominic WIETFELDT ,  Helena Deirdre O'SHEA ,  ZhenQi CHEN ,  Wolfgang ROETHIG

IPC: G06F13/42 ,  G06F13/364 ,  G06F13/40 ,  G06F21/85

CPC classification number: G06F13/4286 ,  G06F13/102 ,  G06F13/16 ,  G06F13/28 ,  G06F13/364 ,  G06F13/4022 ,  G06F21/85

Abstract: Methods and apparatuses are described that facilitate data communication between a first slave device and a second slave device across a serial bus interface. In one configuration, a master device receives, from a first slave device, a request to send a masked-write datagram to a second slave device via a bus, wherein the masked-write datagram is addressed to a radio frequency front end (RFFE) register of the second slave device. The masked-write datagram includes a mask field identifying at least one bit to be changed in the RFFE register and a data field providing a value of the at least one bit to be changed in the RFFE register. The master device detects whether the first slave device is authorized to send the masked-write datagram to the second slave device and permits the first slave device to send the masked-write datagram to the second slave device if authorization is detected.