Broadcom Corporation

Cypress Semiconductor Corporation

Alcatel-lucent USA Inc.

Lucent Technologies Inc.

Alcatel Lucent

Avago Technologies General IP (singapore) Pte. Ltd.

Nokia of America Corporation

Hongwei Kong

Li Fung Chang

Francis Dominique

Nelson Ray Sollenberger

Walid Elias Nabhane

Hui Luo

Kamesh Medapalli

Claude G Hayek

Yan Li

Xianmin Wang

Wei Luo

Jialin Zou

Mark Hahm

Rainer Walter Bachl

Taiyi Cheng

Patrick Cruise

Radhakrishnan Kuzhipatt

Sungeun Lee

Ashok Armen Tikku

Sridhar Prakasam

Zoran Kostic

Jie Lai

Henry Hui Ye

Kaiping Li

Yanbing Zhang

Subramanian Vasudevan

Xiaoxin Qiu

Todd Lee Brooks

Severine E Catreux-Erceg

Shirish Nagaraj

Huaiyu Zeng

Arkady Molev-Shteiman

Xiao-Feng Qi

Srinivas R Kadaba

Jun Wu

Thirunathan Sutharsan

Kai Xie

Huaiyi (Hanks) Zeng

Wendy Yu

Taiya Cheng

Emad N Farag

Guosen Yue

Robert W Zopf

Xicheng Jiang

Nandu Gopalakrishnan

Stefan Brueck

Said Tatesh

Severine Catreux

Junqiang Li

Yee Ling Cheung

James Wihardja

Peter Christian Gunreben

Yunsong Yang

Kumud Kumar Sanwal

Pan Liu

Karthik Rajagopalan

Liang Deng

Robert David Bresalier

Andy Tong

Florian Derriennic

Pierre Bernadac

Jean Paul Moreau

Francis Doninique

Huaiyi Zeng

A method can include, in an access point (AP) configured to control data transfers for associated stations (STAs) in time intervals, storing a unique identifier and quality-of-service (QoS) requirement for each STA of a first set in a nonvolatile memory of the AP. In response to a STA associating with the AP, if the associating STA is in the first set, allocating time for the STA in the time intervals to meet the QoS requirement of the STA without receiving transmitted QoS data from the STA, and if the associating STA is not in the first set, establishing a QoS for the STA having a lower priority than any associated STAs of the first set. Corresponding systems and devices are also disclosed.

Methods, systems and devices for providing differentiated quality of service for wireless communication devices

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

Systems, methods, and devices perform unified demodulation operations for wireless communications devices. Methods may include receiving, at a buffer of a wireless communications device, a data packet, and performing, using a processing device, one or more synchronization operations based on one or more operational modes of a wireless communications protocol. Methods may additionally include identifying, using the processing device, a type of the data packet, configuring, using the processing device, a receive chain of the wireless communications device to perform a type of demodulation operation based on the identified type of the data packet.

Systems, methods, and devices for unified demodulation in wireless communications devices

A method includes comparing a first battery life value of a first wireless device with a second battery life value of a second wireless device, and in response to determining, based on the comparing, that the first battery life value is less than the second battery life, adjusting a communication schedule so a duration of awake state operation of the first wireless device is less than a duration of awake state operation of the second wireless device.

Apparatus, systems, and methods for battery life based wireless communication scheduling

Systems, methods, and devices estimate timing values for data transmission associated with wireless communications devices. Methods include receiving, at a transceiver of a wireless communications device, at least one symbol included in a data transmission, obtaining a plurality of samples of the at least one symbol, and generating, using one or more processors, a plurality of correlation values for each of the plurality of samples. Methods further include generating, using the one or more processors, a multi-sample interpolation model based on at least some of the plurality of correlation values and determining, using the one or more processors, an estimated maximum correlation value and a temporal offset value based on the multi-sample interpolation model, the temporal offset value being used for a time of arrival computation.

Systems, methods, and devices for timing recovery in wireless communications devices

Devices, systems and methods use a first communication interface to connect with a local device via a first protocol and use a second communication interface to connect with a server via a second protocol. Embodiments relay secure communications between the local device and the server for authentication of the at least one local device by the server and responsive to authentication of the local device by the server, transmit information for storage in a secure memory of the authenticated local device.

Devices, systems and methods for connecting and authenticating local devices to common gateway device

A method can include at a first station in a wireless network, receiving path loss (PL) transmissions from at least a second station, dynamically changing power for transmissions from the first station to the second station based on the received PL information, determining PL values for transmissions received at the first station from other stations, and sending PL transmissions from the first station that include the determined PL values for at least one other station. The PL transmissions are configured to be received by stations of the same wireless network and stations of a different wireless network. Corresponding devices and systems are also disclosed.

Methods, systems and devices for varying wireless transmit power based on path loss information

Systems and methods compare a first battery life value associated with a first wireless device with a second battery life value associated with a second wireless device. Based on the comparison, systems and methods adjust a communication schedule by allocating timeslots of the communication schedule to the first wireless device and transmit the adjusted communication schedule to the first wireless device.

A method can include detecting local devices with a wireless first communication interface (IF) of a gateway device; authenticating at least one local device with the gateway device, including by operation of the first communication IF and a second communication IF, relaying secure communications between the at least one local device and a server to enable authentication of the at least one local device by the server, and after receiving authentication of the at least one local device at the gateway device, transmitting user information for storage in a secure memory of the authenticated local device; and operating the gateway device as a common access point to the network for any of a plurality of local devices authenticated with the gateway device. Related systems and gateway devices are also disclosed.

Calibrating a Gaussian frequency-shift keying modulation index includes generating a training sequence of bits, shaping a pulse from the training sequence according to an initial modulation index, and converting the shaped signal to a transmission signal. The transmission signal is then either looped through a radio frequency core or processed by frequency deviation estimation hardware to determine a frequency deviation. The frequency deviation is converted to a new modulation index, and potentially a ratio between a target modulation index and a measured modulation index as a scaling factor. The process is then iteratively repeated until a threshold frequency deviation is achieved.

Stable modulation index calibration and dynamic control

A communication system and method are disclosed for parallel processing of received signals to improve sensitivity of the system. Generally, the method includes demodulating a modulated signal in a first demodulator circuit and a second demodulator circuit in parallel. The first and second demodulated signals are then de-whitened, and a cyclic redundancy code (CRC) check performed on each. If the de-whitened first demodulated signal passes the CRC check a first packet included in the signal is sent to a central processing unit (CPU) for further processing. If the de-whitened second demodulated signal passes the CRC check, and the de-whitened first demodulated signal fails, a second packet included in the de-whitened second demodulated signal is transmitted to the CPU for further processing. In one embodiment, one of demodulator circuits is a GFSK demodulator operated in the phase domain and configured to use maximum likelihood sequence estimation. Other embodiments are also described.

Parallel processing of dirty packets in Bluetooth and Bluetooth low energy systems

A modem includes a modulator and a demodulator. The demodulator includes a direct current removing (DCR) circuit to transition between an acquisition mode, where the DCR circuit operates with a first loop gain; and a tracking mode, where the DCR circuit operates with a second loop gain. The second loop gain is smaller than the first loop gain, and the timing of the transition between the acquisition mode and tracking mode is programmable.

Spur cancellation system for modems

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Denville, NJ, United States of America

Hongwei Kong