Qualcomm Incorporated

Berkana Wireless, Inc.

Korea Advanced Institute of Science and Technology

Marvell International Limited

Berk&auml;na Wireless, Inc.

Beomsup Kim

Cormac S Conroy

Michael Kohlmann

Charles James Persico

Tae Hea Nahm

Chan-Hong Park

Ozan Ersan Erdogan

Jin-Su Ko

Sang Jin Byun

Jonghae Kim

Ning Zhang

Xiaoxin Zhang

Periannan Chidambaram

Dennis G Yee

Youhan Kim

Taehoon Kim

Jafar Savoj

Alireza Khalili

Young Gon Kim

Dongmin Park

Tzu-Wang Pan

William B Baringer

Chan Hong Park

Yongwang Ding

Sang Oh Lee

Jacques C Rudell

Amir Ziabasharhagh

Seok Ki Kang

Yongchul Song

Key Hyun Kim

Kyoohyun Lim

Yong Chul Song

A distributed active, power combining amplifier including at least one main amplifier having a first main portion and a second main portion, at least one peaking amplifier having a first peaking portion and a second peaking portion, and a transformer having a primary side and a secondary side, the primary side having at least a first primary segment, a second primary segment, a third primary segment and a fourth primary segment, wherein the first main portion is coupled to the first primary segment and the second primary segment, the first peaking portion is coupled to the first primary segment or the second primary segment, the second main portion is coupled to the third primary segment and the fourth primary segment, and the second peaking portion is coupled to the third primary segment or the fourth primary segment in a symmetric architecture.

Distributed active power combining amplifier

Certain aspects of the present disclosure are generally directed to techniques and apparatus for adjusting capacitance in one or more metal-insulator-metal (MIM) capacitors in an effort to reduce capacitance variation between semiconductor devices and improve yield during fabrication. One example method for fabricating a semiconductor device generally includes measuring a capacitance value of a MIM capacitor of the semiconductor device, determining the measured capacitance value of the MIM capacitor is above a target capacitance value for the MIM capacitor, and selectively rupturing a set of connections in the MIM capacitor based on the measured capacitance value. Selectively rupturing the set of connections in the MIM capacitor may reduce the capacitance value of the MIM capacitor to a value approximately that of the target capacitance value.

MIM capacitor with adjustable capacitance via electronic fuses

An advantageously fast and asynchronous interface is disclosed for the tuning of an RF frontend. The interface transmits a tuning word to the RF frontend that controls a tuning of the RF frontend responsive to a channel index.

Tunable RF frontend

Methods, systems, and devices for wireless communication are described. An access point (AP) may switch antenna array configurations during reception of a packet to determine channel characteristic information for the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration. In some cases, the AP may use multiple antenna array configurations to transmit training fields in the preamble of a packet. The AP may receive channel characteristic information for each of the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration.

Enhanced antenna array training

Methods, systems, and devices are described for wireless communication. An example method includes receiving, by a first wireless communication device having a plurality of antennas disposed at a localized position, a plurality of fine timing management (FTM) messages from a second wireless communication device. The example method includes transmitting, by the first wireless communication device, a plurality of FTM responses to the second wireless communication device. Each of the plurality of FTM responses may be transmitted using a different antenna of the first wireless communication device. The example method also includes estimating a range between the first wireless communication device and the second wireless communication device based at least in part on the plurality of FTM messages.

Ranging over multiple antennas

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

An integrated circuit is described. The integrated circuit includes a global positioning system core that generates a GPS clock signal using an inductor-capacitor voltage controlled oscillator. The integrated circuit also includes a transceiver core configured to use the GPS clock signal. The transceiver core may not include a voltage controlled oscillator.

Clock sharing between cores on an integrated circuit

A serial bit stream having a given bit per second rate is received and distributed to a plurality of phase shifted samplers. A multi-phase sampling trigger is generated at a rate lower than the given bit per second rate, and each of the phase shifted samplers is controlled by one of the phases of the multi-phase sampling trigger. The time spacing between phases of the multi-phase sampling trigger is the inverse of the given bit per second rate. The phase of the multi-phase sampling trigger is aligned with the phase of the serial bit, to collectively recover by the plurality of phase shifted samplers a plurality of consecutive bits from the serial bit stream.

Method and apparatus for receiver adaptive phase clocked low power serial link

A wireless device for receiving composite signals is disclosed. The wireless device includes an antenna. The wireless device also includes a first amplifier coupled to the antenna. The wireless device further includes a second amplifier coupled to the antenna. The wireless device also includes a first receiver. The wireless device further includes a second receiver. The wireless device also includes a first switch that couples the first receiver to the output of either the first amplifier or the second amplifier. The wireless device further includes a second switch that couples the second receiver to the output of either the first amplifier or the second amplifier.

Antenna sharing for radio frequency signals in same frequency bands

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.

A system and method are disclosed for transmitting and receiving signals. The method includes receiving a received signal; demodulating the received signal by mixing the received signal with a receiver local oscillator signal generated by a voltage controlled oscillator configured to generate the receiver local oscillator signal; switching the configuration of the voltage controlled oscillator to generate a transmission signal for use by a transmitter; and transmitting a modulated signal derived from the transmission signal.

Wireless transceiver

A wideband telecommunications device with narrow band support. The device may be a receiver having a wireless interface configured to receive combined first and second signals, the first signal having data in a first frequency band and the second signal having data in a second frequency band wider than the first frequency band, wherein the first frequency band is within the second frequency band. The receiver may also be a processing system configured to recover the data in the first signal from the combined first and second signals. The device may be a transmitter having a first signal source configured to provide a first signal having data in a first frequency band; a second signal source having a second frequency band, the first frequency band being within a sub-band of the second frequency band, wherein the second signal source is configured to provide a second signal having data in the second frequency band with no data in the sub-band of the second frequency band, a processing system configured to combine the first and second signals, and a wireless interface configured to transmit the combined first and second signal.

Growing community of inventors

Cupertino, CA, United States of America

Beomsup Kim