Cypress Semiconductor Corporation

Broadcom Corporation

Avago Technologies General IP (singapore) Pte. Ltd.

Avago Technologies International Sales Pte. Limited

Other

Kamesh Medapalli

Dutt Kalapatapu

Rajendra Kumar Gundu Rao

Ayush Sood

Florin Baboescu

Kiran Uln

Yan Li

Hongwei Kong

Jie Lai

Farouk Belghoul

Saishankar Nandagopalan

Aimin Justin Sang

Prasanna Kumar Sethuraman

Paul Strauch

Ahmad Rahmati

Raghunatha Kondareddy

Vojislav Vucetic

Sri Ramya Thota

Kaiping Li

Patrick Cruise

Thaiyalan Appadurai

Wenyu Liu

Sangho Seo

Brian Bedrosian

Matthew James Fischer

Erik Richard Stauffer

Frank Van Diggelen

Prasanna Desai

Mark Gonikberg

Bertrand Martyn Hochwald

Robert G Lorenz

Steven Deane Hall

Victor Simileysky

Sachin Gupta

Shawn Ding

Raghavendra Kencharla

Xianmin Wang

Neeraj Poojary

Sanjay Saha

Yury Gonikberg

Ashok Nimmala

Sudhirkumar Prajapati

Richard Compton

Asish Makkattil Ratnan

Payel Banerjee

Yanbing Zhang

Nethi Kashi Viswanath

Knut Terje Hermod Odman

William Charles Fujimoto

Petrea Timariu

Kempraju G

Kai Xie

Wendy Yu

John S Walley

Brima Babatunde Ibrahim

David Gordon Wright

Nelson Ray Sollenberger

Charles Abraham

Hui Luo

Robert W Zopf

Marko Niemi

James Wihardja

Amit Shaw

Charlie Abraham

Manoj George

Aidan Smyth

Prashant Kota

Karl Paulsen

Shimon Edelhaus

Conrad Smith

Joseph Saada

Yossi (Joseph) Saada

Roshni Sulekhakumari

Kenneth Ma

Yossi Saada

Robert Lorenz

Rick Compton

Implementations disclosed describe techniques and systems that improve wireless connectivity between devices that support multiple operation modes, by monitoring a quality of the established wireless connection and performing a change of the operation mode in response to changing conditions. The disclosed techniques include obtaining metrics characterizing quality of the wireless connection, identifying a utility function that is specific to an application supported by the wireless connection, computing multiple values of the utility function for various operation modes, based on the obtained metrics, and initiating a change of the operation mode based on a comparison of the computed utility values.

Adaptive wireless connections in multi-mode devices

Embodiments can include a method in which a transmission duration for data frames to a plurality of different receiving devices is determined by a transmitting device. The transmission duration can include at least interframe spacings that separate the data frames from one another. The transmitting device can transmit a control message over a medium to reserve the medium for the transmission duration. The data frames can then be sequentially transmitted by the transmitting device to the plurality of receiving devices during the transmission duration. The transmitting device can operate according to a contention based protocol. Related devices and systems are also disclosed.

Devices, systems and methods for low latency data transmission in wireless network

A method can include, by operation of a user device, receiving beacon data via a wireless signal. Beacon data can include unencrypted data that includes a key identification (ID) corresponding to a private key/public key pair, a time value, and a location value. Beacon data can also include encrypted data that includes at least a beacon ID, a beacon time value, and a beacon location value. If the unencrypted time value is within a predetermined range of a current time value of the user device, the beacon data can be stored in a user record with a user ID. Periodically, the user record can be uploaded to a tracking system. Corresponding devices and systems are also disclosed.

Devices, systems and methods for close contact tracing with strong privacy protection

Systems, methods, and devices enable coexistence of traffic for collocated transceivers. Methods may include generating a target-wake-time (TWT) agreement based on availability of a first transceiver and a plurality of wireless devices. Methods also include generating a medium access schedule for the first transceiver using a first transmission protocol based on transmission events determined based on a second transmission protocol of a second transceiver, the second transceiver being collocated in the same device as the first transceiver, and the medium access schedule being a TWT schedule including active times for the first transceiver and each of the plurality of wireless devices determined based on a timing and duty cycle of the second transmission protocol and activity of the second transceiver. Methods also include transmitting the TWT schedule to the plurality of wireless devices, the TWT schedule identifying the one or more active times to the plurality of wireless devices.

Implementation of traffic coexistence for collocated transceivers including Bluetooth transceivers

A method can include at a combination device, receiving or generating a slot availability mask (SAM) information compatible with a Bluetooth and/or Bluetooth Low Energy (BT) standard; by operation of BT compatible circuits of the combination device, determining a schedule of BT compatible data transfers in response to at least the SAM information; and by operation of circuits compatible with at least one IEEE 802.11 wireless standard (WLAN circuits), determining a schedule of WLAN compatible data transfers in response to at least the SAM information. Related systems and methods are also disclosed.

Devices, systems and methods for power optimization using transmission slot availability mask

A wireless communication device and method for operating the same for mitigating interference in a wireless communication network are provided. Generally, the method includes sensing with the wireless communication device pulses of electromagnetic radiation recurring within a band of frequencies used by the device for communication of signals, identifying the pulses as interference, and determining a number of frequencies of the interference within the band of frequencies used by the wireless communication device. Next, a sensitivity of the wireless communication device is reduced upon sensing one of the pulses and repeated at a frequency corresponding to the frequency of the interference. Thus, a spectrum of electromagnetic radiation around the wireless communication device is perceived by the device as free of interference, enabling it to transmit and/or receive more often. Other embodiments are also disclosed.

Microwave oven coexistence with Wi-Fi/BT

Systems, methods, and devices schedule network traffic for wireless communications devices. Methods include identifying a plurality of stations included in a first network, and generating, using one or more processors of a first access point, a network traffic schedule configured to assign a plurality of service periods to the plurality of stations, the network traffic schedule identifying a plurality of sleep times and wake times for the plurality of stations. Methods further include transmitting a query frame to at least one station of the plurality of stations during a designated service period, and receiving a data transmission from the at least one station, the data transmission being generated by the station based on transmission parameters included in the query frame.

Scheduling of network traffic for wireless communications devices

Systems, methods, and apparatus use a processor of a first device to wirelessly communicate with a second device using a first antenna. The processor selects the first antenna from a plurality of antennas based on comparing first antenna data associated with the first antenna with second antenna data associated with a second antenna.

Systems, methods, and devices for implementing antenna diversity with wireless communications devices

Systems, methods, and devices shape waveforms associated with transmission of data from wireless communications devices. Methods may include identifying, using a processing device, a plurality of portions of a Bluetooth packet for transmission from a wireless communications device, the plurality of portions comprising a first portion and a second portion. Methods may also include determining, using the processing device, a first transmit power associated with the first portion and a second transmit power associated with the second portion, the determining being based, at least in part, on whether the first portion or second portion is used in packet detection. Methods may further include transmitting the first portion of the Bluetooth packet using the first transmit power, and transmitting the second portion of the Bluetooth packet using the second transmit power.

Transmit waveform shaping for wireless communications devices

Disclosed are methods and systems for tailoring the transmit power of a wireless device to the parameters of the device such as the process split, voltage, and temperature. The device may identify one or more parameters of the device such as identifying the process split, or sensing the operating voltage or temperature. The device may determine an updated transmit power based on the known parameter values identified and any unknown parameter values. The updated transmit power is determined to be a maximum transmit power that meets one or more target transmit metrics, such as EVM and spectral mask, when the device transmits based on the known parameter values and across a range of variations of the unknown parameter values. The device may adjust its transmit power based on the updated transmit power periodically.

Methods for setting transmit power in wireless devices

Methods for transporting a media call between an IMS server and a User Equipment (UE) and of handing over the media call between a cellular network and a WLAN are provided. In an embodiment, the media call data and signaling are split such that the data is transported over the WLAN and the signaling is transported over the cellular network. In another embodiment, handover latency is reduced by using a dual registration process that registers the UE with an IMS server using both a WLAN-based contact and a cellular network-based contact. The media call can then be carried over the WLAN and/or the cellular network and can be handed over seamlessly from one to the other within minimal signaling.

Low latency IMS-based media handoff between a cellular network and a WLAN

Devices, systems and methods generate a packet including a first preamble and a narrow band packet. Embodiments assign a first frequency band to the first preamble and assign a second frequency band to the narrow band packet. The second frequency band is a first sub-band of the first frequency band. Embodiments transmit the packet by transmitting the first preamble across the first frequency band and transmitting the narrow band packet across the second frequency band. The narrow band packet includes a second preamble and narrow band packet data.

Devices, systems and methods for narrow band communications within protocol having frequency multiplexing

Embodiments can include methods, devices and systems which can transmitting a preamble across a first channel according to a first communication protocol; sequentially transmitting signal values in a plurality of narrow bands; monitoring the narrow bands for response communications; and upon detecting response communications on at least one of the narrow bands, establishing communications across at least one of the narrow bands. Each narrow band can be a different portion of the first channel.

Devices, systems and methods for extending the range of a wireless communication system

Systems, methods, and devices enable coexistence of traffic for collocated transceivers. Methods may include generating, using a processing device, a target-wake-time (TWT) agreement, the TWT agreement being determined based on availability of a first transceiver and a plurality of wireless devices. The methods may also include generating, using the processing device, a medium access schedule for the first transceiver based on a transmission parameter of a second transceiver, the second transceiver being collocated with the first transceiver and sharing a transmission medium with the first transceiver, and the medium access schedule being a TWT schedule. The methods may further include transmitting the TWT schedule to the plurality of wireless devices, the TWT schedule identifying a plurality of wake times and a plurality of sleep times to the plurality of wireless devices.

Growing community of inventors

San Jose, CA, United States of America

Kamesh Medapalli