Qualcomm Incorporated

Infineon Technologies Ag

Michael Kohlmann

Cormac S Conroy

Liang Zhao

Beomsup Kim

Tae Hea Nahm

Roger Brockenbrough

Leonid Sheynblat

Louay A Jalloul

Douglas Neal Rowitch

Roland Reinhard Rick

Le Nguyen Luong

Francis Ming-Meng Ngai

Shriram Gurumoorthy

Eric Y Tsou

Steve Andre Beaudin

Paul A Conflitti

Samir Salib Soliman

Alireza Raissinia

Olufunmilola Omolade Awoniyi-Oteri

Brian Clarke Banister

Bongyong Song

Xiaoxin Zhang

Joel Linsky

Vincent K Jones

Olaf Josef Hirsch

James M Gardner

Shrenik Patel

Cheng-Han Wang

Patric Heide

Tevfik Yucek

Charles James Persico

Francis M Ngai

David J Maldonado

Ara Bicakci

Joel D Medlock

Jin-Su Ko

Gregory C Steele

Carl Hardin

Stefan Freisleben

Anup Savla

Mahbod Mofidi

Ryan Scott Castro Spring

Mark Vernon Lane

Vikram Phogat

Wai San Wong

Yoshiro Fukuoka

Mykola Shevelov

Arild Torvaldson Kolsrud

Bahman Ahrari

Shishir Gupta

Steven Jones

Gopal Chillariga

Santosh Kumar Gupta

Joel Benjamin Linsky

Vincent Knowles Jones

Arild Kolsrud

Aspects relate to wireless communication at a wireless communication device. The wireless communication device may include a transmitter configured to communicate using a first communication protocol, a receiver configured to communicate using a second communication protocol, different from the first communication protocol, a first antenna coupled to the transmitter, a second antenna coupled to the receiver and physically separated from the first antenna by a variable distance. The wireless communication device transmits, via the first antenna, a first transmission within a first frequency range, and receives via the second antenna, a second transmission within a second frequency range that overlaps the first frequency range. To receive the second transmission, the device may perform a radio frequency coexistence mitigation procedure based on the variable distance between the first antenna and the second antenna in response to detection of a concurrency in time between the first transmission and the second transmission.

Adaptive radio frequency coexistence mitigation

Differing operations of a wireless communication device benefit from different antenna configurations, such as for positioning, where closely spaced antennas are desirable, and data communication, where antenna diversity is desirable. A device is configured to receive a request for receive a request for determining a position of a user equipment (UE), select one of a first plurality of antennas or a second plurality of antennas for determining the position of the UE, receive wireless signals using the selected first plurality of antennas or the second plurality of antennas, and determine the position of the UE based at least in part on the received wireless signals.

Antenna sharing for multiple wireless communication technologies

A user equipment (UE) includes a first communication component configured to use a first frequency band, such as ultra-wide band (UWB), and a second communication component configured to use an intermediate frequency (IF) band that overlaps with the UWB band, such as an IF millimeter wave (mmWave) band. The second communication component conducts an IF signal along an internal signal conduction line that may interfere with UWB processing. A processor of the UE is configured to detect an indication of such interference, and, in response to the indication of interference, control the second communication component to adjust a characteristic of the IF band signal to mitigate the interference, such as by reducing its signal strength. The amount by which the IF band signal strength is reduced may be controlled to achieve a desired tradeoff between various performance metrics, such as power consumption and quality of service.

Radio frequency coexistence mitigations within wireless user equipment handsets

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.

Apparatus and method for controlling a switchable filter for coexistence between wireless protocols

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may include a memory and at least one processor coupled to the memory. The at least one processor may be configured to determine a retransmission rate associated with retransmission of one or more packets by the communications device. The at least one processor may be configured to determine a measurement associated with antenna gain of at least one antenna of the apparatus. The at least one processor may be configured to adjust a transmission power of the apparatus based on the retransmission rate and based on the measurement.

Mitigating spectral emission conditions for high transmission output power during degraded antenna peak gain

A user equipment (UE) may receive a wireless wide area network (WWAN) signal on a first antenna. The UE may process the WWAN signal with a portion of a WWAN receive chain of a WWAN module of the UE. The WWAN signal may be routed from the WWAN receive chain to a wireless local area network (WLAN) receive chain of a WLAN module of the UE. The UE may then process the WWAN signal with a portion of the WLAN receive chain.

Interoperation techniques for WWAN and WLAN receive chains

An apparatus includes a first low noise amplifier (LNA) in a first receive path. The apparatus further includes receive circuitry in the first receive path. The receive circuitry is configured to receive an output of the first LNA and to receive an output of a second LNA within a second receive path.

Enhancing data throughput using multiple receivers

Systems, methods and apparatus a provided for calibrating actual output power of a transmit power sensor for closed loop power control using a quality metric such as error vector magnitude (EVM) to improve power detection accuracy. In aspects, a method for correlating an output of a transmit power sensor with actual output power of a wireless transmitter includes deriving a characteristic correlation between an actual output power of a set of transmit amplifiers and an output power and of a set of corresponding power detection circuits over a range of transmit power levels in a corresponding set of wireless devices; storing the characteristic correlation in a wireless device that is not part of the set from which the characteristic correlation was derived; and sensing an output of a transmit power sensor of the device while the transmitter of the device transmits according to one or more gain settings.

Methods and apparatus for power amplifier calibration

An RF transceiver integrated circuit has a novel segmented, low parasitic capacitance, internal loopback conductor usable for conducting IP2 self testing and/or calibration. In a first novel aspect, the transmit mixer of the transceiver is a current mode output mixer. The receive mixer is a passive mixer that has a low input impedance. In the loopback mode, the transmit mixer drives a two tone current signal to the passive mixer via the loopback conductor. In a second novel aspect, only one quadrature branch of the transmit mixer is used to generate both tones required for carrying out an IP2 test. In a third novel aspect, a first calibration test is performed using one quadrature branch of the transmit mixer at the same time that a second calibration test is performed using the other quadrature branch, thereby reducing loopback test time and power consumption.

RF transceiver IC having internal loopback conductor for IP2 self test

An apparatus and method are disclosed for effectively and efficiently arbitrating concurrent usage between WLAN and Bluetooth access technologies for co-located wireless devices. A state level arbiter determines state and relevant parameters of a WLAN module and of a Bluetooth module of a wireless transceiver unit. The state level arbiter uses the state and relevant parameters to determine which access technology (WLAN or Bluetooth) or combination of the access technologies (WLAN or Bluetooth) will provide the best concurrent performance for wireless transmissions at a given time for specific Bluetooth states and WLAN states.

Method and apparatus for dynamic and dual antenna bluetooth (BT)/WLAN coexistence

The subject matter disclosed herein relates to a system and method for processing wireless signals received from one or more communications systems. In a particular implementation, one or more signals received from one or more communication systems such as a GNSS may be processed in two or more separate wireless signal receiver paths and combined in baseband to share one analog-to-digital converter.

Hybrid multi-band receiver

The subject matter disclosed herein relates to a system and method for processing navigation signals received from multiple global navigation satellite systems (GNSS'). In a particular implementation, signals received from multiple GNSS&#x2032; may be processed in a single receiver channel.

Navigation receiver

A WCDMA enabled user equipment device configured to have functions collectively or selectively idle to conserve power. A discontinuous receiver is used to detect and read network messages and report the messages to the computer within the WCDMA enabled user equipment device. The computer then activates functions previously powered down to receive incoming messages for the user of the device. The discontinuous receiver is also used when the device is active to read network messages, freeing a modem of the device to operate on user messaging; and therefore, enhancing user related performance.

WCDMA device and method for discontinuous reception for power saving in idle mode and flexible monitoring of neighboring cells

A WCDMA enabled user equipment device configured to have functions collectively or selectively idle to conserve power. A discontinuous receiver is used to detect and read network messages and report the messages to the host processor within the WCDMA enabled user equipment device. The host processor then activates functions previously powered down to receive incoming messages for the user of the WCDMA device. The discontinuous receiver is also used when the WCDMA device is active to read network messages, freeing a modem of the device to operate on user messaging; and therefore, enhancing user related performance.

Growing community of inventors

San Francisco, CA, United States of America

Michael Kohlmann